CN202182284U - Novel dual-gland precision type pipeline compensator - Google Patents
Novel dual-gland precision type pipeline compensator Download PDFInfo
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- CN202182284U CN202182284U CN2011202759278U CN201120275927U CN202182284U CN 202182284 U CN202182284 U CN 202182284U CN 2011202759278 U CN2011202759278 U CN 2011202759278U CN 201120275927 U CN201120275927 U CN 201120275927U CN 202182284 U CN202182284 U CN 202182284U
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Abstract
The utility model discloses a novel dual-gland precision type pipeline compensator, which belongs to the technical field of the structure of thermal pipeline compensation equipment and comprises a core tube, a sealed pressing sleeve flange, a diameter-variable adapter, a gland flange, an outer bushing flange, an outer bushing and so on. The inner end of the core tube abuts against the diameter-variable end of the diameter-variable adapter. The gland flange, the sealed pressing sleeve flange and the outer bushing are sequentially sleeved onto the outer ring surface of the core tube in order. The sealed pressing sleeve flange is positioned between the gland flange and the outer bushing. Due to the adoption of the novel dual-gland precision type pipeline compensator, the medium flow direction is not limited and the coaxial precision is high. Meanwhile, the friction coefficient and the self torque of the pipeline compensator are reduced and the bending resistance and the bearing capability of the pipeline compensator are improved. The sealing performance of the pipeline compensator is also improved and the service life thereof is prolonged. Meanwhile, the operation of the pipeline is safer and more reliable. A feasible emergency plan is also provided through the structure of the pipeline compensator.
Description
Technical field
The utility model relates to the accurate formula pipeline compensator of a kind of new type double gland; The technical field that belongs to heat distribution pipeline compensation device structure belongs to the heat distribution pipeline that uses in the industries such as oil, chemical industry, light industry, heating power, the metallurgy technical field as the supporting fitting structure of pipeline specifically.
Background technique
Heat distribution pipeline must cause expanding with heat and contract with cold of pipeline because of the medium temperature of transmission changes, and the pipeline dilatation occurs with end thrust or the axial displacement form that is unfavorable for the pipe safety operation.Under the normal conditions, all be provided with the compensation of pipeline device in the heat distribution pipeline to absorb or the compensation pipe deforming.What the compensation of pipeline mode of existing technology was common has following several kinds: 1. traditional natural U-shaped is bent formula, 2. spherical compensator, 3. slip-type expansion joint, 4. FlexbleJoint, 5. whirl compensator.Wherein: the compensation way of " traditional natural U-shaped is curved " is that Security is better, but the pressure loss, the region between the heart and the diaphragm plate thrust and construction investment are all bigger; " spherical compensator " cost is higher, and the spherical compensator performance of domestic production is more general, and crushing is also bigger when operation simultaneously; " ordinary cartridge formula compensator " sealability is unstable, can say that leakage phenomenon is more general, and also weak aspect anticorrosion link, service life is limited; " FlexbleJoint " the region between the heart and the diaphragm plate thrust and construction investment are all bigger, are in bigger stress phase all the time when particularly pipeline moves, and that is to say to use the heat-net-pipeline of FlexbleJoint to exist potential safety hazard all the time; " whirl compensator " though in long defeated aerial pipeline advantage more obvious, have that compensation rate is big, flexible arrangement; But also exist not enough: particularly the slit, junction of the interior pipe of old-fashioned whirl compensator and reducer pipe is bigger, the one, and caused in the flowing medium motion and can produce eddy current at this position, will produce the certain pressure loss of flowing medium like this; The 2nd, caused MEDIA FLOW to being limited to; The 3rd, because the structure of whirl compensator is a working principle radially; When using, must to have two be one group in pairs and adopt its effect of ∏ type setting type competence exertion; Each group mounting points of place also must supporting four elbows, receive the big water attack of tool for fear of ∏ type elbow in addition, low spot of installing in each group ∏ type form also must install drain valve additional; Like this increased the cost and the pressure loss of pipe network again, especially at all can't widespread usage in the direct-burried heat-net-pipeline; Another crux is that spherical compensator, slip-type expansion joint, FlexbleJoint, old-fashioned whirl compensator all are the single seal form that adopts, so all receive certain limitation at aspects such as flowing medium and bearing capacities.
Summary of the invention
The utility model provides a kind of new type double gland accurate formula pipeline compensator.To realize solving the deficiency of existing technology; Reach and reduce pipe stress, enhance seal performance improves bearing capacity, possesses preservative efficacy, can realize the large compensation amount, need not the occupying volume external space, and the characteristics that Applicable scope is wider; Play less investment simultaneously, operating cost is low, and pipe network operation is not only safe but also reliable, really reaches the purpose of energy-saving and emission-reduction.
For the technological scheme of the utility model that achieves the above object is:
The accurate formula pipeline compensator of a kind of new type double gland comprises cushion cap, steel ball A, reducing adapter, nut B, steel ball B, gland flange, stud bolt, outer sleeve flange, nut A, Sealing A, the protruding outer shroud of core pipe and outer sleeve in core pipe, unsteady preload piece B, sealed pressing sleeve flange, float preload piece A, Sealing B, the outer sleeve;
The paired top of the reducing end state that the inner of said core pipe and reducing are taken over is provided with, this gland flange, and the order ring set is at this core pipe outer ring surface successively for sealed pressing sleeve flange and outer sleeve, and sealing gland flange is between this gland flange and this outer sleeve;
One convexes with the protruding outer shroud of a core pipe on the inner outer shroud of said core pipe, needed groove when the termination, outer end is provided with and is welded to connect with piping erection;
Described outer sleeve one end is equipped with the outer sleeve flange outward, and the other end ring set is taken over the outer shroud of reducing end and is welded to connect with the outer shroud of this reducing end at this reducing; This outer sleeve inner wall middle part convexity is provided with cushion cap in the outer sleeve;
Cushion cap is annular convex structure in the described outer sleeve, and the sectional shape of this annular convex structure is an isosceles trapezoid;
The protruding outer shroud of described core pipe cross section one end is 90 ° a right angle end face, and the other end is stair-stepping end face; The protruding outer shroud outer shroud of this core pipe end angle is provided with the L shaped right angle of ring-type recess; It is square annular space that the anchor ring of the L shaped right angle of this ring-type recess and end face and outer sleeve inner wall and reducing adapter reducing termination end face surround a cross section jointly, and at least ten this steel ball A are arranged in the described annular space;
Described Sealing A latch closure is at core pipe outer shroud and in this outer sleeve between the trapezoidal side central plane of cushion cap and the protruding outer shroud of this core pipe right angle end face;
Described Sealing B latch closure is at core pipe outer shroud and in this outer sleeve between the trapezoidal opposite side central plane of cushion cap and the sealing gland flange;
The reducing end that described reducing is taken over is greater than the external diameter of this core pipe, and the inside and outside footpath of the other end is identical with the inside and outside footpath of core pipe, and is provided with needed groove when being welded to connect with piping erection in the termination; This reducing end is the plane port;
Described gland flange is that two semicircular ring butt joints combine, and sectional shape is a rectangle, is provided with an annular groove along ring in the annulus, and at least ten steel ball B tops are to being arranged in this annular groove and being the outer shroud that rolling ring is buckled in this core pipe;
The semicircular ring butt joint that described sealed pressing sleeve flange is two same structures combines, and sectional shape is L shaped, and L shaped minor face is the ring-type I-shaped structure; The end face of the ring-type I-shaped structure of sealing gland flange is tight against sealing part B;
Described gland flange and sealing gland flange semicircular ring butted line are the outer shroud that mutual decussation structure cover is buckled in the core pipe;
Described gland flange links closely to be connected with the outer sleeve flange with nut A through stud bolt and nut B with the sealed pressing sleeve flange and fixes;
Be provided with the preload piece A that floats between described nut A and outer sleeve end face of flange, be provided with the preload piece B that floats between described nut B and gland flange end face.
This core pipe is inserted in the inboard of cushion cap in the outer sleeve, and both are provided with the gap between the anchor ring; Be provided with the gap between protruding outer shroud of this core pipe and the outer sleeve anchor ring.
Gap in this core pipe outer ring surface and this outer sleeve between the inner ring surface of cushion cap is not less than 2 millimeters; Gap between the protruding outer shroud outer ring surface of this core pipe and this outer sleeve inner ring surface is not less than 2 millimeters.
This reducing is taken over the reducing end and is inserted in this outer sleeve, and this core pipe end probes into the inboard that this reducing is taken over the reducing end; The end face of this reducing adapter reducing end and the stepped termination of the protruding outer shroud of this core pipe are provided with and are not less than 3 millimeters gaps; This reducing end inner ring surface and this core pipe probe into to be provided with between the outer ring surface of end and are not less than 2 millimeters gaps
The length range that this reducing is taken over this outer sleeve of reducing end insertion is 20～40 millimeters; The stepped termination of the protruding outer shroud of this core pipe probes into this reducing and takes over the interior length of encircling of reducing end more than or equal to 5 millimeters; The gap that this reducing adapter reducing end inner ring surface and the protruding outer shroud of this core pipe probe between the end outer ring surface is not less than 2 millimeters.
Two interior angles of cushion cap isosceles trapezoid are 45 ° in this outer sleeve; The bi-side of cushion cap annular convex structure are arc curve structure or waveform curved-surface structure in this outer sleeve.
This reducing is taken over slope type and the size conforms GB/T 50235-1997 standard-required that groove one end is set; This core pipe is provided with the slope type and the size conforms GB/T 50235-1997 standard-required of groove one end.
Sealing part A top is supported and is arranged in the cavity that the right angle end face by the one side central plane of cushion cap in this outer sleeve, outer sleeve inner wall, core pipe outer shroud and the protruding outer shroud of core pipe surrounds jointly; Sealing part B top is supported and is arranged in the cavity that the end face by cushion cap opposite side central plane, outer sleeve inner wall, core pipe outer shroud and sealed pressing sleeve flange ring-type I-shaped structure in this outer sleeve surrounds jointly.
Be provided with at least ten steel ball B in the annular groove of ring in this gland flange and be the outer shroud that rolling ring is buckled in this core pipe.
The preload piece A that should float is butterfly spring, disc spring or unsteady tightening cushion; The preload piece B that should float is butterfly spring, disc spring or unsteady tightening cushion.
Adopt the technological scheme of the utility model because core pipe inner end outer shroud is provided with the protruding outer shroud of core pipe that structure is an one; Weld needed groove (slope type and size conforms GB/T 50235-1997 standard-required) when the outer end is provided with and is connected with piping erection, the protruding outer shroud of this core pipe is taken over inner end face outer shroud end angle facing to reducing and is provided with the L shaped right angle of ring-type recess; Outer sleeve one end is equipped with the outer sleeve flange outward, is positioned at that the middle part is inboard to be provided with an annular convex structure and two ends are the outer sleeve cushion cap that is rightabout 45 ° of curve taper end faces; It is the plane port that reducing is taken over inner (bigger diameter end); And external diameter is less than the internal diameter of outer sleeve; Weld needed groove (slope type and size conforms GB/T 50235-1997 standard-required) when the outer end (miner diameter end) that reducing is taken over is connected with piping erection for being provided with, and inside and outside footpath is identical with the core pipe; Outer sleeve is set in the outer shroud of core pipe and both inner ends of reducing adapter; Specifically the core pipe interts the inboard of cushion cap in the sleeve pipe outside; And be provided with the gap that is not less than 1mm between the inboard anchor ring of core pipe outer shroud and the interior cushion cap of outer sleeve; And the core pipe the inner that has length to be not less than 5mm is embedded in reducing and takes in the inner cylindrical shell, the ring-type L shaped right angle recess that place, the outer shroud end angle of the protruding outer shroud of core pipe is provided with and take in the square space of the common formation of interior edge face with outer sleeve inner wall and reducing and to be provided with at least ten steel ball A; Be provided with the gap that is not less than 1mm between protruding outer shroud of core pipe and outer sleeve anchor ring, and be provided with the gap that is not less than 2mm between both end faces of reducing adapter, the anchor ring of L shaped right angle recess and end face and outer sleeve inner wall and reducing are taken over interior edge face and are all offseted with steel ball A; Reducing is taken over inner end length and is not less than the cylindrical shell inboard that 20mm is inserted in outer sleeve; Utilize reducing camber line outer ring surface that reducing takes over and outer sleeve to lean on gap between the inwall anchor ring of termination, reducing is taken over and outer sleeve is welded to connect the structure that is fixed as one through taking welding manner; Be provided with Sealing A in the outer sleeve between the end face of cushion cap one 45 ° of curve tapers end face and the protruding outer shroud of core pipe with 45 ° of corresponding 45 ° of cone angle end faces of curve taper end face; Be provided with Sealing B in the outer sleeve between the L shaped casting die end face of another 45 ° of curve taper end faces of cushion cap and casting die casing flange with 45 ° of corresponding 45 ° of cone angle end faces of curve taper end face; The outer shroud of Sealing A and Sealing B is tight against the inwall of outer sleeve, the link closely outer shroud of core pipe of interior ring; Gland flange is that two 1/2 planar circulars combine, and the annulus inboard is provided with the annular groove of a storing steel ball B; The sealed pressing sleeve flange is two circular combining of 1/2L shape, and L shaped minor face (binder sleeve portion in other words) is the I shape ring structure; The gland flange that two 1/2 planar circulars combine and two circular sealed pressing sleeve flanges that combine of 1/2L shape are the outer shroud that cross overlapping shape structure suit or hitch are arranged at the outer extreme direction of core pipe; The L shaped ring-type I shape of sealing gland flange casting die end face is tight against Sealing B, and at least ten steel ball B rolling rings are buckled in the outer shroud of this core pipe in the inboard annular groove of this gland flange; The outer sleeve flange three end face that gland flange, sealed pressing sleeve flange and outer sleeve are provided with is provided with at least four corresponding through holes; Pass this corresponding through hole successively by stud bolt, and link closely to be connected with nut A (comprising the nut A that has the preload piece that floats) through nut B (comprising the nut B that has the preload piece that floats) and fix; Be provided with the preload piece A that floats between nut A and outer sleeve end face of flange, be provided with the preload piece B that floats between nut B and gland flange end face.
Such structure has improved bearing capacity and sealability greatly; It is core pipe and the coaxial control action of outer sleeve that its steel ball A and steel ball B have played one, the 2nd, and core pipe and reducing are taken over the position-limiting action between end face, and the 3rd, the multi-efficiency of the frictional resistance when reducing core pipe and outer sleeve and rotating relatively; And the spacing of steel ball A and steel ball B obtained prolongation, and coaxial control is more accurate; Cushion cap end face and the point of corresponding conoid end face seal A and Sealing B combine further to have improved the double seal performance of end face and anchor ring with the line science in the outer sleeve of 45 ° of curve tapers; Float preload piece A and unsteady preload piece B played: when bolt pretightening weakens or lose, to the unsteady pretension effect of specific pressure of Sealing B, make the casting die end of the sealed pressing sleeve flange Sealing B that links closely all the time, make sealability more reliable; The gland flange and the sealed pressing sleeve flange of detachable double-layer cross opening reduplicative forms have played: one is that the intensity of 1/2 circle opening flange is guaranteed; The 2nd, when running into special operation condition; Can make things convenient for timely interpolation or change Sealing B, make the life cycle of two accurate pipeline compensators of gland obtain reliable assurance.
It is limited to not to adopt such structure to have MEDIA FLOW, and coaxial precision is high, and friction factor and self moment of torsion are littler; Bending resistance and bearing capacity are stronger, and sealability is more outstanding, and service life is longer; Pipeline moves safety and reliability, and possesses the characteristics of feasible emergency preplan structure.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model partial structurtes enlarged diagrams.
Description of reference numerals
1. core pipe
2. preload piece B floats
3. sealed pressing sleeve flange
4. preload piece A floats
5. Sealing B
6. cushion cap in the outer sleeve
7. steel ball A
8. reducing is taken over
9. nut B
10. steel ball B
11. gland flange
12. stud bolt
13. outer sleeve flange
14. nut A
15. Sealing A
16. the protruding outer shroud of core pipe
17. outer sleeve.
Embodiment
Below in conjunction with accompanying drawing the technological scheme of the utility model is described in detail as follows.
As depicted in figs. 1 and 2; The accurate formula pipeline compensator of a kind of new type double gland comprises cushion cap 6, steel ball A7, reducing adapter 8, nut B9, steel ball B10, gland flange 11, stud bolt 12, outer sleeve flange 13, nut A14, Sealing A15, the protruding outer shroud 16 of core pipe and outer sleeve 17 in core pipe 1, unsteady preload piece B2, sealed pressing sleeve flange 3, float preload piece A4, Sealing B5, the outer sleeve;
Said core pipe 1 is that (side is for inner for straight tube structure; Opposite side is the outer end), its inner and reducing are taken over the paired top of reducing end state of 8 and are provided with that (it is tubular construction that reducing takes over 8, and the reducing end here is to bring in respect to reducing one not; The reducing end here refers to reducing and takes on 8 internal diameter greater than an end of reducing one end not; Like Fig. 1 and Fig. 2), this gland flange 11, sealed pressing sleeve flange 3 and outer sleeve 17 are successively in proper order (for example; Along core pipe 1 outer end to inner order; Like Fig. 1 and Fig. 2) ring set is at this core pipe 1 outer ring surface, sealing gland flange 3 between this gland flange 11 and this outer sleeve 17, specifically sealing gland flange 3 be this gland flange 11 and and the into a single integrated structure outer sleeve flange 13 of this outer sleeve 17 between;
Become even distributed and arranged through hole respectively on sealed pressing sleeve flange 3, gland flange 11 and outer sleeve flange 13 end face separately; For example, described outer sleeve flange 13, gland flange 11 and sealed pressing sleeve flange 3 three's end faces are provided with at least four corresponding through holes;
One convexes with the protruding outer shroud 16 of a core pipe on the inner outer shroud of said core pipe 1, needed groove when the termination, outer end is provided with and is welded to connect with piping erection, and this core pipe 1 is provided with the slope type and the size conforms GB/T 50235-1997 standard-required of groove one end.
Described outer sleeve 17 1 ends are along being equipped with (for example can one-body molded setting or through being fastenedly connected setting) outer sleeve flange 13 outward, and the other end (near the part of termination) ring set is taken over the outer shroud of 8 reducing ends and is welded to connect with the outer shroud of this reducing end at this reducing; This outer sleeve 17 inwalls middle part convexity is provided with cushion cap 6 in the outer sleeve;
This core pipe 1 is inserted in the inboard of cushion cap 6 in the outer sleeve, and both are provided with the gap between the anchor ring; Gap in this core pipe 1 outer ring surface and this outer sleeve between the inner ring surface (being trapezoidal upper bottom surface) of cushion cap 6 is not less than 2 millimeters (preferable gap is 2 millimeters);
Be provided with the gap between the protruding outer shroud 16 of this core pipe and outer sleeve 17 both anchor rings.Gap between protruding outer shroud 16 outer ring surfaces of this core pipe and this outer sleeve 17 inner ring surfaces is not less than 2 millimeters (preferable gap is 2 millimeters).
The protruding outer shroud of described core pipe 16 cross sections one end is 90 ° a right angle end face, and the other end is stair-stepping end face (like Fig. 1 and Fig. 2); The protruding outer shroud of this core pipe 16 outer shroud end angles are provided with the L shaped right angle of ring-type recess; The anchor ring of the L shaped right angle of this ring-type recess and end face and outer sleeve 17 inwalls and reducing are taken over 8 reducing termination end faces to surround a cross section jointly are square annular space, and at least ten or 20 this steel ball A7 (becoming evenly to distribute) are arranged in the described annular space;
Described Sealing A15 latch closure is at core pipe 1 outer shroud and in this outer sleeve between cushion cap 6 trapezoidal side central planes and the protruding outer shroud 16 right angle end faces of this core pipe; Be that sealing part A15 top is supported and is arranged in the cavity that the right angle end face by the 6 one side central planes of cushion cap in this outer sleeve, outer sleeve 17 inwalls, core pipe 1 outer shroud and the protruding outer shroud 16 of core pipe surrounds jointly.The external surface that sealing part A15 supports on the top cushion cap 6 one side central planes in the outer sleeve is corresponding identical with corresponding central plane shape.
Described Sealing B5 latch closure is at core pipe 1 outer shroud and in this outer sleeve between cushion cap 6 trapezoidal opposite side central planes and the sealing gland flange 3; Be that sealing part B5 top is supported and is arranged in the cavity that the end face by the 6 opposite side central planes of cushion cap in this outer sleeve, outer sleeve 17 inwalls, core pipe 1 outer shroud and sealed pressing sleeve flange 3 ring-type I-shaped structures surrounds jointly.The external surface that sealing part B5 supports on the top cushion cap 6 opposite side central planes in the outer sleeve is corresponding identical with corresponding central plane shape.
The reducing end of described reducing adapter 8 is greater than the internal diameter of this core pipe 1; The inside and outside footpath of the other end is identical with the inside and outside footpath of core pipe 1; And be provided with needed groove when being welded to connect with piping erection in the termination, this reducing take over 8 groove one end is set slope type and size conforms GB/T 50235-1997 standard-required; This reducing end is the plane port;
This reducing is taken over 8 reducing ends and is inserted in this outer sleeve 17, and the length range that this reducing is taken over this outer sleeve 17 of 8 reducing ends insertion is 20～40 millimeters (being preferably 20 millimeters); The protruding outer shroud of this core pipe 16 stepped terminations probe into the interior ring that this reducing is taken over 8 reducing ends, and the length that probes into is more than or equal to 5 millimeters (being preferably 5 millimeters); This reducing is taken in the 8 reducing ends ring end face and is probeed into to hold between the outer ring surface with the protruding outer shroud 16 of this core pipe and be provided with the gap, between the gap be not less than 2-3 millimeter (being preferably 2 millimeters).
This core pipe 1 termination probes into the inboard that this reducing is taken over 8 reducing ends; End face and the protruding outer shroud of this core pipe 16 stepped terminations that this reducing is taken over 8 reducing ends are provided with and are not less than 3 millimeters gaps; This reducing end inner ring surface and this core pipe 1 probe into to be provided with between the outer ring surface of end and are not less than 2 millimeters gaps.
Described gland flange 11 is that two semicircular ring (1/2 plane of the opening annulus) butt joint combines; Sectional shape is a rectangle; Be provided with an annular groove along ring in the annulus; At least one or ten steel ball B10 top are supported and are arranged in this annular groove and are the outer shroud that rolling ring is buckled in this core pipe 1, are preferably to be provided with at least ten or 20 (for example 20) steel ball B10 and to be the outer shroud that rolling ring is buckled in this core pipe 1.
Semicircular ring (1/2 opening the is L shaped circular) butt joint that described sealed pressing sleeve flange 3 is two same structures combines, and sectional shape is L shaped, and L shaped minor face is the ring-type I-shaped structure; The end face of the ring-type I-shaped structure of sealing gland flange 3 is tight against sealing part B5;
Described gland flange 11 is the outer shroud that mutual decussation structure cover is buckled in core pipe 1 with sealing gland flange 3 both semicircular ring butted lines; Be the L shaped circular sealed pressing sleeve flange that combines of the gland flange 11 that combines of described 1/2 plane of the opening annulus and 1/2 opening 3 both be the outer shroud that the overlapping shape structure of cross cover is buckled in core pipe 1; And be positioned at outer sleeve flange 13; The ring-type I shape interior edge face of sealing gland flange 3 is tight against Sealing B5, and be provided with in the inboard annular groove of this gland flange 11 at least ten or 20 steel ball B10 are the outer shroud that rolling ring is buckled in this core pipe 1;
Described gland flange 11 links closely to be connected with outer sleeve flange 13 with nut A14 through stud bolt 12 and nut B9 with sealed pressing sleeve flange 3 and fixes; Stud bolt 12 passes gland flange 11; The through hole that is provided with on the sealed pressing sleeve flange 3; And pass the through hole that is provided with on the outer sleeve flange 13, the three is fastenedly connected fixing through nut B9 and nut A14;
Be provided with the preload piece A4 that floats between described nut A14 and outer sleeve flange 13 end faces, be provided with the preload piece B2 that floats between described nut B 9 and gland flange 11 end faces; The preload piece A4 that should float is butterfly spring, disc spring or unsteady tightening cushion; The preload piece B2 that should float is butterfly spring, disc spring or unsteady tightening cushion; The shape of the preload piece A4 and the preload piece B2 that should float of should floating can be sphere or the sphere shelly is one-body molded processes.
During assembling; To install to the outside of core pipe 1 earlier with 6 another the 45 ° of corresponding taper end face of curve taper end face lip ring A hitch of cushion cap in the outer sleeve or cover; And make Sealing A90 ° of right angle end face be tight against 90 ° of right angle end faces of the protruding outer shroud 16 of core pipe; Insert core pipe 1 in the outer sleeve 17 then with protruding outer shroud 16 of core pipe and Sealing A; (specifically insert cushion cap 6 inboards in the outer sleeve of annular convex, promptly insert along the end that outer sleeve flange 13 is not set) also makes the cone angle end face of Sealing A be tight against the curve taper end face (as shown in Figure 1) of cushion cap 6 in the outer sleeve; Then steel ball A7 is placed in L shaped right angle recess and the common groove that forms of outer sleeve 17 inwalls that place, the protruding outer shroud of core pipe 16 end face outer shroud end angles is provided with; Wherein 2/3 steel ball A7 imbeds in this groove, and 1/3 steel ball A7 is protruding to be emitted beyond protruding outer shroud 16 end faces of core pipe (as shown in Figure 1); Then reducing is taken in the cylindrical shell of 8 internal diameters (being reducing end or bigger diameter end) insertion outer sleeve 17, and made reducing take over 8 interior edge faces, then make reducing adapter 8 be welded to connect fixing (as shown in Figure 1) with outer sleeve 7 through the mode that is welded to connect to steel ball A7; Then in the inwall and core pipe 1 outer shroud chamber between the two with Sealing B5 hitch to outer sleeve 17 outer casing flange 13 ends, and make the cone angle end face (interior edge face) of Sealing B5 be tight against the curve taper end face (as shown in Figure 1) of cushion cap 6 in the outer sleeve; Follow the outer shroud of 3 while of sealed pressing sleeve flange hitch to the core pipe 1 that combines two 1/2L shape circular rings, and make L shaped minor face (binder sleeve portion in other words) be tight against the exterior edge face (as shown in Figure 1) of Sealing B5 for the casting die end face of I shape ring structure; Then steel ball B10 is placed in the inboard annular groove of gland flange 11 (butter of can be earlier in the inboard annular groove of gland flange 11, putting some pastes) respectively; Follow the outer shroud of 11 while of gland flange hitch to the core pipe 1 that forms two 1/2 planar circular textural associations; And both are the structure of the overlapping type form of cross opening to make gland flange 11 and sealed pressing sleeve flange 3, and steel ball B10 rolling ring is buckled in the outer shroud (as shown in Figure 1) of core pipe 1; The stud bolt 12 that installs nut A14 and unsteady preload piece A4 the sixth of the twelve Earthly Branches by an end then passes corresponding several through holes that outer sleeve flange 17 and sealed pressing sleeve flange 3 and gland flange 11 three's end faces are provided with respectively successively, and links closely to be connected with nut B9 through the preload piece B that floats and fix.
Adopt the technological scheme of the utility model owing to be respectively equipped with two Seal cages between core pipe 1 outer shroud and outer sleeve 17 inwalls, interior edge face and outer sleeve 17 inwalls and core pipe 1 outer shroud that the interior cushion cap 6 of outer sleeve is 45 ° of cone angle curves comprises in the cavity that 90 ° of right angle end faces of the protruding outer shroud 16 of core pipe surround jointly Sealing A15 is housed; Exterior edge face and outer sleeve 17 inwalls and core pipe 1 outer shroud that cushion cap 6 is 45 ° of cone angle curves in the outer sleeve comprises in the cavity that the interior edge face of sealed pressing sleeve flange 3 surrounds jointly Sealing B5 is housed; After core pipe 1 is being with the protruding outer shroud 16 of core pipe to insert in outer sleeve 17 cylindrical shells; The L shaped right angle of the ring-type recess that the outer shroud end angle of protruding outer shroud 16 1 ends of core pipe is provided with, the anchor ring of its recess and end face and outer sleeve 17 inwalls and reducing are taken over to be equipped with in the square space that 8 interior edge faces surround jointly has at least 20 steel ball A7 and core pipe 1 outer shroud to be rolling latch closure shape; The gland flange inner ring surface of 1/2 plane of the opening circle structure is provided with to be equipped with in the annular groove has at least 20 steel ball B9 and core pipe 1 outer shroud to be rolling latch closure shape.This structural type makes:
1, the inboard of cushion cap 6 in the described core pipe 1 interspersed sleeve pipe outside, both are provided with the gap that is not less than 2mm between the anchor ring, and core pipe 1 the inner that has length to be not less than 5mm is embedded in the cylindrical shell of reducing adapter 8 the inners;
2, be provided with the gap that is not less than 2mm between the protruding outer shroud 16 of described core pipe and outer sleeve 17 both anchor rings, and be provided with the gap that is not less than 3mm between reducing adapter 8 both end faces;
3, the anchor ring of the L shaped right angle recess that is provided with of the protruding outer shroud of described core pipe 16 end face outer shroud end angles places and end face are taken over 8 interior edge faces (four faces of doing) with outer sleeve 17 inwalls and reducing and all are the structure that rolling offsets with steel ball A7;
4, described steel ball A and steel ball B have played: the one, and core pipe and the coaxial control action of outer sleeve, the 2nd, core pipe and reducing are taken over the position-limiting action between end face, and the 3rd, the multi-efficiency of the frictional resistance when reducing core pipe and outer sleeve and rotating relatively; And the spacing of steel ball A and steel ball B has obtained prolongation, coaxial control better effects if;
5, the double sealing structure of the science of cushion cap end face that has been incorporated into one-step optimization and anchor ring in the outer sleeve of the described end Sealing A that is 45 ° of cone angle end faces and Sealing B and 45 ° of curve taper end faces is improved sealability; Pipe and the outer sleeve self-lubricating function when the relative rotation of operation in Sealing A and Sealing B also play simultaneously in addition;
6, described unsteady preload piece A and unsteady preload piece B have played: when bolt pretightening weakens or loses, to the pretension effect of floating of the specific pressure of Sealing B, make the casting die end of the sealed pressing sleeve flange Sealing B that links closely all the time, make sealability more reliable;
7, the gland flange of detachable double-layer cross opening reduplicative forms and sealed pressing sleeve flange have played: one is that the intensity of 1/2 circle opening flange is guaranteed, the 2nd, and when running into special operation condition, can make things convenient for timely interpolation or change Sealing;
8, it is limited to not to adopt the present technique scheme to have MEDIA FLOW, and coaxial precision is high, and friction factor and self moment of torsion are littler; Bending resistance and bearing capacity are stronger; Sealability is more outstanding, and service life is longer, pipeline operation safety and reliability; Service life is longer, and possesses the characteristics of feasible emergency preplan structure.
Claims (10)
1. the accurate formula pipeline compensator of new type double gland is characterized in that: comprise that cushion cap (6), steel ball A (7), reducing are taken over (8), nut B (9), steel ball B (10), gland flange (11), stud bolt (12), outer sleeve flange (13), nut A (14), Sealing A (15), the protruding outer shroud of core pipe (16) and outer sleeve (17) in core pipe (1), unsteady preload piece B (2), sealed pressing sleeve flange (3), float preload piece A (4), Sealing B (5), the outer sleeve;
The paired top of the reducing end state that the inner of said core pipe (1) and reducing are taken over (8) is provided with; This gland flange (11); The order ring set is at this core pipe (1) outer ring surface successively for sealed pressing sleeve flange (3) and outer sleeve (17), and sealing gland flange (3) is positioned between this gland flange (11) and this outer sleeve (17);
One convexes with the protruding outer shroud of a core pipe (16) on the inner outer shroud of said core pipe (1), needed groove when the termination, outer end is provided with and is welded to connect with piping erection;
Described outer sleeve (17) one ends are equipped with outer sleeve flange (13) outward, and the other end ring set is taken over the outer shroud of (8) reducing end and is welded to connect with the outer shroud of this reducing end at this reducing; This outer sleeve (17) inwall middle part convexity is provided with cushion cap (6) in the outer sleeve;
Cushion cap (6) is annular convex structure in the described outer sleeve, and the sectional shape of this annular convex structure is an isosceles trapezoid;
The protruding outer shroud of described core pipe (16) cross section one end is 90 ° a right angle end face, and the other end is stair-stepping end face; The protruding outer shroud of this core pipe (16) outer shroud end angle is provided with the L shaped right angle of ring-type recess; It is square annular space that the anchor ring of the L shaped right angle of this ring-type recess and end face and outer sleeve (17) inwall and reducing adapter (8) reducing termination end face surround a cross section jointly, and at least ten this steel ball A (7) are arranged in the described annular space;
Described Sealing A (15) latch closure core pipe (1) outer shroud and be positioned at the trapezoidal side central plane of this outer sleeve cushion cap (6) and the protruding outer shroud of this core pipe (16) right angle end face between;
Described Sealing B (5) latch closure is at core pipe (1) outer shroud and be positioned between trapezoidal opposite side central plane of this outer sleeve cushion cap (6) and the sealing gland flange (3);
Described reducing is taken over the external diameter of the reducing end of (8) greater than this core pipe (1), and the inside and outside footpath of the other end is identical with the inside and outside footpath of core pipe (1), and is provided with needed groove when being welded to connect with piping erection in the termination; This reducing end is the plane port;
Described gland flange (11) is that two semicircular ring butt joints combine, and sectional shape is a rectangle, is provided with an annular groove along ring in the annulus, and at least ten steel ball B (10) top is to being arranged in this annular groove and being the outer shroud that rolling ring is buckled in this core pipe (1);
Described sealed pressing sleeve flange (3) is that the semicircular ring butt joint of two same structures combines, and sectional shape is L shaped, and L shaped minor face is the ring-type I-shaped structure; The end face of the ring-type I-shaped structure of sealing gland flange (3) is tight against sealing part B (5);
Described gland flange (11) is the outer shroud that mutual decussation structure cover is buckled in core pipe (1) with both semicircular ring butted lines of sealing gland flange (3);
Described gland flange (11) links closely to be connected with outer sleeve flange (13) with nut A (14) through stud bolt (12) and nut B (9) with sealed pressing sleeve flange (3) and fixes;
Be provided with the preload piece A (4) that floats between described nut A (14) and outer sleeve flange (13) end face, be provided with the preload piece B (2) that floats between described nut B (9) and gland flange (11) end face.
2. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that this core pipe (1) is inserted in the inboard of cushion cap (6) in the outer sleeve, and both are provided with the gap between the anchor ring; Both are provided with the gap protruding outer shroud of this core pipe (16) and outer sleeve (17) between the anchor ring.
3. the accurate formula pipeline compensator of new type double gland as claimed in claim 2 is characterized in that the gap between the inner ring surface of the interior cushion cap (6) of this core pipe (1) outer ring surface and this outer sleeve is not less than 2 millimeters; Gap between this core pipe protruding outer shroud (16) outer ring surface and this outer sleeve (17) inner ring surface is not less than 2 millimeters.
4. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that this reducing adapter (8) reducing end inserts in this outer sleeve (17), and this core pipe (1) termination probes into the inboard that this reducing is taken over (8) reducing end; End face of this reducing adapter (8) reducing end and the stepped termination of the protruding outer shroud of this core pipe (16) are provided with and are not less than 3 millimeters gaps; This reducing end inner ring surface and this core pipe (1) probe into to be provided with between the outer ring surface of end and are not less than 2 millimeters gaps.
5. the accurate formula pipeline compensator of new type double gland as claimed in claim 4 is characterized in that it is 20～40 millimeters that this reducing is taken over the length range of (8) reducing end this outer sleeve of insertion (17); The stepped termination of the protruding outer shroud of this core pipe (16) probes into this reducing and takes over the interior length of encircling of (8) reducing end more than or equal to 5 millimeters.
6. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that two interior angles of cushion cap (6) isosceles trapezoid in this outer sleeve are 45 °; The bi-side of the annular convex structure of cushion cap (6) are arc curve structure or waveform curved-surface structure in this outer sleeve.
7. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that this reducing adapter (8) is provided with the slope type and the size conforms GB/T 50235-1997 standard-required of groove one end; This core pipe (1) is provided with the slope type and the size conforms GB/T 50235-1997 standard-required of groove one end.
8. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that sealing part A (15) top is supported to be arranged in the cavity that the right angle end face by (6) the one side central planes of cushion cap in this outer sleeve, outer sleeve (17) inwall, core pipe (1) outer shroud and the protruding outer shroud of core pipe (16) surrounds jointly; Sealing part B (5) top is supported and is arranged in the cavity that the end face by cushion cap in this outer sleeve (6) opposite side central plane, outer sleeve (17) inwall, core pipe (1) outer shroud and sealed pressing sleeve flange (3) ring-type I-shaped structure surrounds jointly.
9. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is provided with at least ten steel ball B (10) in the annular groove that it is characterized in that encircling in this gland flange (11) and is the outer shroud that rolling ring is buckled in this core pipe (1).
10. the accurate formula pipeline compensator of new type double gland as claimed in claim 1 is characterized in that this unsteady preload piece A (4) is butterfly spring, disc spring or unsteady tightening cushion; The preload piece B (2) that should float is butterfly spring, disc spring or unsteady tightening cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202759278U CN202182284U (en) | 2011-08-01 | 2011-08-01 | Novel dual-gland precision type pipeline compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202759278U CN202182284U (en) | 2011-08-01 | 2011-08-01 | Novel dual-gland precision type pipeline compensator |
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| Publication Number | Publication Date |
|---|---|
| CN202182284U true CN202182284U (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202759278U Expired - Fee Related CN202182284U (en) | 2011-08-01 | 2011-08-01 | Novel dual-gland precision type pipeline compensator |
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| Country | Link |
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| CN (1) | CN202182284U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913707A (en) * | 2011-08-01 | 2013-02-06 | 陈墅庚 | Novel double-gland precision type pipeline compensator |
| CN103047506A (en) * | 2012-12-26 | 2013-04-17 | 江苏贝特管件有限公司 | Pipeline compensator with seal cavity designed with inclined plane |
| CN104075058A (en) * | 2014-06-24 | 2014-10-01 | 陈墅庚 | Precise type compound pipeline compensator |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
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2011
- 2011-08-01 CN CN2011202759278U patent/CN202182284U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913707A (en) * | 2011-08-01 | 2013-02-06 | 陈墅庚 | Novel double-gland precision type pipeline compensator |
| CN102913707B (en) * | 2011-08-01 | 2015-03-18 | 陈墅庚 | Novel double-gland precision type pipeline compensator |
| CN103047506A (en) * | 2012-12-26 | 2013-04-17 | 江苏贝特管件有限公司 | Pipeline compensator with seal cavity designed with inclined plane |
| CN103047506B (en) * | 2012-12-26 | 2015-10-28 | 江苏贝特管件有限公司 | Seal cage is set to the pipeline compensator on inclined-plane |
| CN104075058A (en) * | 2014-06-24 | 2014-10-01 | 陈墅庚 | Precise type compound pipeline compensator |
| CN104075058B (en) * | 2014-06-24 | 2016-03-02 | 陈墅庚 | Accurate compound pipe compensator |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
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