CN217683755U - Ultra-low temperature filler expansion joint - Google Patents

Abstract

The utility model discloses an ultra-low temperature filler expansion joint, including spacing pipe and last flange, spacing pipe upper end is connected with flange, spacing tub of outer end upside is connected with mounting flange, it is provided with a plurality of shock attenuation overspeed device tensioner to go up the mounting flange upper end outside, it is provided with a plurality of flexible measuring tape devices, a plurality of to go up the mounting flange lower extreme outside the shock attenuation overspeed device tensioner is inside to run through from top to bottom has fixing bolt, through setting up a plurality of shock attenuation overspeed device tensioner in last mounting flange upper end outside, makes fixing bolt can bear bigger impact force, strengthens fixed stability, can prevent effectively simultaneously that fixation nut is not hard up, makes fixedly more firm, through setting up a plurality of flexible measuring tape devices in last mounting flange lower extreme outside for expansion joint can be more convenient, more swift installation, can more accurate adjustment expansion amount, more conveniently observe the change of expansion joint at work volume simultaneously, can be more timely make the adjustment, improve expansion joint's stability and security.

Description

Ultra-low temperature filler expansion joint

Technical Field

The utility model belongs to the technical field of the expansion joint is relevant, concretely relates to ultra-low temperature filler expansion joint.

Background

The expansion joint is a pipeline compensation joint, is a new product for connecting equipment such as a pump, a valve, a pipeline and the like with the pipeline, is connected by bolts to form a whole, has a certain displacement, is adjusted according to the field installation size during installation and maintenance, and can transmit axial thrust to the whole pipeline system during work so as to play a certain protection role on the pipeline equipment such as the pump, the valve and the like.

The prior expansion joint technology has the following problems: 1. when the expansion joint vibrates or expands, a large impact force is generated instantly to damage the fixing bolt, the fixing bolt is easy to break or deform under the impact of the large impact force for a long time, so that the expansion joint is unstable in fixation and easy to leak, and meanwhile, the fixing nut can be loosened due to long-term vibration to loose the fixation, so that the expansion joint is not firm in fixation and is easy to fall off; 2. in the expansion joint installation, because the flexible volume size of direct measurement and observation expansion joint adjustment can not, must use the instrument limit to measure the limit installation, and can not in time measure and observe when the adjustment, must go to measure again after the adjustment for expansion joint installation effectiveness reduces, and the precision is not high, simultaneously can't observe the change of flexible volume at expansion joint work, consequently can not in time make the adjustment to flexible volume, can influence expansion joint's stability and security.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultra-low temperature filler expansion joint to solve the too big easy fracture of the impact force that receives of the fixing bolt who proposes in the above-mentioned background art or inconvenient measurement and the change problem of observation flexible volume when deforming and installing.

In order to achieve the above object, the utility model provides a following technical scheme: the ultra-low temperature filler expansion joint comprises a limiting pipe and an upper connecting flange, the upper end of the limiting pipe is connected with the upper connecting flange, the upper side of the outer end of the limiting pipe is connected with an upper fixing flange, the outer side of the upper fixing flange is provided with a plurality of damping tensioning devices, the outer side of the lower end of the upper fixing flange is provided with a plurality of telescopic measuring scale devices, a plurality of fixing bolts penetrate through the inner portions of the damping tensioning devices from top to bottom, the lower end of the limiting pipe is sleeved with a filler pipe, a filler compression ring penetrates through the inner portions of the upper end of the filler pipe from top to bottom, the upper end of the filler pipe is connected with a lower fixing flange, the lower end of the filler pipe is connected with a limiting sleeve, the lower end of the limiting sleeve is connected with a lower connecting flange, the damping tensioning devices comprise an upper sliding hole, a damping ring, a damping seat, a spring, a damping chamber and a lower sliding hole, the outer wall of the upper fixing flange is connected with the damping seat from top to bottom, the damping chamber penetrates through the inner portions of the damping ring, the upper and the lower end of the limiting flange are connected with a lower sliding hole, and the inner portions of the limiting flange.

Preferably, go up flange and last mounting flange and lower mounting flange excircle radius equals down, the inside sealing packing that is provided with of filler pipe, the packing clamping ring is "protruding" shape setting and narrow down wide.

Preferably, the excircle radius of the upper side ring of the packing compression ring is equal to the excircle radius of the lower fixing flange, the lower side ring of the packing compression ring upwards penetrates through the inside of the packing tube and fixes the sealing filler in the packing tube, the sealing filler is made of ultralow-temperature materials, and the packing compression ring and the lower fixing flange are fixedly connected through bolts.

Preferably, the inner circle radius of the limiting pipe is equal to that of the limiting sleeve, the upper fixing flange is fixedly connected with the lower fixing flange through a fixing bolt, and the fixing bolt penetrates through the interior of the packing compression ring from top to bottom and can slide up and down in the interior of the packing compression ring.

Preferably, it equals with the gliding hole just interior circle radius on same axis to go up the slide opening, go up the slide opening and pass through the shock attenuation room with the gliding hole and communicate each other, the damping ring can slide from top to bottom in the shock attenuation room is inside, fixing bolt can slide from top to bottom in last slide opening and gliding hole and shock attenuation room inside.

Preferably, the metal measuring tape can reciprocate in spacing downthehole portion, spacing pipe can measure expansion joint's flexible volume through the scale, the metal measuring tape adopts the stainless steel to make and forms, pack the clamping ring and the spacing hole on the mounting flange down all on same axis and interior circle radius equals.

Compared with the prior art, the utility model provides an ultra-low temperature filler expansion joint possesses following beneficial effect:

1. the utility model discloses set up a plurality of shock attenuation overspeed device tensioner in the last mounting flange upper end outside, slide from top to bottom in the shock attenuation indoor portion through the damping ring, the vibrations of rethread spring with the damping ring weaken, make expansion joint can alleviate the impact force that fixing bolt received when taking place vibrations or flexible, prevent that the too big fracture or deformation that leads to of fixing bolt atress, increase the impact force upper limit that fixing bolt can bear, increase fixing bolt's life, strengthen fixing bolt's fixed stability, can give a tensile force of fixing bolt all the time simultaneously, can effectively prevent that fixation nut is not hard up, it is more firm to make fixed, originally expansion joint is when taking place vibrations or flexible, can produce great impact force in the twinkling of an eye, can cause the damage to fixing bolt, fixing bolt is very easy fracture or produce deformation under great impact force impact for a long time, make expansion joint fixed unstable, the easy emergence is leaked, also can make fixing nut produce not hard up for a long time simultaneously, make fixed insecure easily drop, through set up a plurality of shock attenuation overspeed device in the last mounting flange upper end outside, make fixing bolt can bear bigger impact force, improve the upper limit, improve the life, strengthen the fixed stability, it is effectively to prevent that fixing nut from becoming flexible simultaneously, make it is more firm.

2. The utility model discloses set up a plurality of flexible measuring tape devices in the last mounting flange lower extreme outside, through the scale on metal measuring tape and its outer wall, make expansion joint can the size of the flexible volume of direct observation adjustment in the installation, make expansion joint just conveniently adjust flexible volume, make flexible volume adjustment measure more accurately, more in time, improve the installation effectiveness, simultaneously can observe the change volume of expansion joint in operating condition at any time, can make the adjustment more in time, improve stability and security, originally in the expansion joint installation, because can not directly measure and observe the flexible volume size of expansion joint adjustment, must use the instrument limit to measure the limit installation, and can not in time measure and observe when the adjustment, must go to measure after the adjustment again, make expansion joint installation effectiveness reduce, and the precision is not high, simultaneously can't observe the change of flexible volume in the expansion joint work, consequently, can not make the adjustment to flexible volume, can influence the stability and the security of expansion joint, through setting up a plurality of flexible measuring tape devices in the last mounting flange lower extreme outside, make the expansion joint can be more convenient, more swiftly the installation can be adjusted, the more accurate adjustment, the stability and the stability of the flexible volume of the improvement when the flexible volume of installation, the flexible joint can be made more convenient, the change of the flexible volume, the improvement of the flexible volume of installation, the flexible volume of the flexible joint.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of an ultra-low temperature filler expansion joint provided by the utility model;

fig. 2 is a schematic view of a three-dimensional structure of the damping and tensioning device provided by the present invention;

fig. 3 is a schematic view of a three-dimensional cross-sectional structure of the damping and tensioning device provided by the present invention;

fig. 4 is a schematic view of a partial three-dimensional structure of the retractable measuring tape device provided by the present invention;

in the figure: 1. a limiting pipe; 2. a damping tensioner; 3. a telescopic measuring tape device; 4. packing and pressing a ring; 5. a filler tube; 6. a lower connecting flange; 7. a limiting sleeve; 8. a lower fixed flange; 9. fixing the bolt; 10. an upper fixing flange; 11. an upper connecting flange; 12. an upper slide hole; 13. a vibration damping ring; 14. a shock absorbing seat; 15. a spring; 16. a damping chamber; 17. a lower slide hole; 18. a metal measuring tape; 19. a limiting hole; 20. and (4) calibration.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an ultra-low temperature filler expansion joint comprises a limiting pipe 1 and an upper connecting flange 11, the upper end of the limiting pipe 1 is connected with the upper connecting flange 11, the upper side of the outer end of the limiting pipe 1 is connected with an upper fixing flange 10, the outer side of the upper end of the upper fixing flange 10 is provided with a plurality of damping and tensioning devices 2, the outer side of the lower end of the upper fixing flange 10 is provided with a plurality of expansion measuring scale devices 3, a plurality of damping and tensioning devices 2 are internally and vertically penetrated with fixing bolts 9, the lower end of the limiting pipe 1 is sleeved with a filler pipe 5, the inner part of the upper end of the filler pipe 5 is upwards penetrated with a filler press ring 4, the upper end of the filler pipe 5 is connected with a lower fixing flange 8, the inner circle radius of the limiting pipe 1 is equal to the inner circle radius of a limiting sleeve 7, the upper fixing flange 10 is fixedly connected with the lower fixing flange 8 through the fixing bolts 9, the fixing bolts 9 vertically penetrate the inner part of the filler press ring 4 and can slide up and down in the filler press ring 4, so that the interior is smoother, the packing ring is more firmly fixed and can better expand and contract, the excircle radius of an upper side ring of the packing press ring 4 is equal to that of a lower fixed flange 8, a lower side ring of the packing press ring 4 upwards penetrates through the inside of a packing tube 5 and seals are fixed inside the packing tube 5, the seals are made of ultralow-temperature materials, the packing press ring 4 is fixedly connected with the lower fixed flange 8 through bolts, the packing press ring 4 can be better fixed, the seals are prevented from falling off, the sealing effect is better, the connection is firmer, the lower end of the packing tube 5 is connected with a limit sleeve 7, the lower end of the limit sleeve 7 is connected with a lower connecting flange 6, the excircle radii of an upper connecting flange 11, the lower connecting flange 6, an upper fixed flange 10 and a lower fixed flange 8 are equal, the seals are arranged inside the packing tube 5, the packing 4 is arranged in a convex shape, the upper press ring is wide and the lower part is narrow, the fixation and the expansion and contraction are more convenient, the sealing is tighter, the sealing packing can be more conveniently compressed, the packing compression ring 4 can be more conveniently fixed, the damping and tensioning device 2 comprises an upper sliding hole 12, a damping ring 13, a damping seat 14, a spring 15, a damping chamber 16 and a lower sliding hole 17, the damping seat 14 is connected to the front side of the outer wall of the upper end of the upper fixing flange 10, the damping chamber 16 penetrates upwards in the damping seat 14, the lower sliding hole 17 is arranged at the lower end of the damping chamber 16, the upper sliding hole 12 and the lower sliding hole 17 are on the same axis, the inner circle radius is equal, the upper sliding hole 12 and the lower sliding hole 17 are mutually communicated through the damping chamber 16, the damping ring 13 can slide up and down in the damping chamber 16, the fixing bolt 9 can slide up and down in the upper sliding hole 12, the lower sliding hole 17 and the damping chamber 16, the fixing bolt 9 can more conveniently penetrate through the inner part of the fixing bolt, the damping and the tensioning can be more conveniently carried out damping and tensioning, 16 inside springs 15 that are provided with of surge chamber, 15 upper ends of springs are provided with damping ring 13, damping ring 13 is inside to run through from top to bottom has last slide opening 12, flexible measuring tape device 3 includes metal measuring tape 18, spacing hole 19 and scale 20, it is connected with metal measuring tape 18 to go up mounting flange 10 lower extreme outer wall front side, be provided with scale 20 on the outer wall of metal measuring tape 18 outer end, filler clamping ring 4 and lower mounting flange 8 are inside to run through from top to bottom has spacing hole 19, metal measuring tape 18 can reciprocate inside spacing hole 19, spacing pipe 1 can measure expansion joint's flexible volume through scale 20, metal measuring tape 18 adopts the stainless steel to make and forms, spacing hole 19 on filler clamping ring 4 and lower mounting flange 8 is all on same axis and interior radius equals, more conveniently adjust the flexible volume, more conveniently direct observation flexible volume change, the structure is firmer, more conveniently metal measuring tape 18 reciprocates.

The utility model discloses a theory of operation and use flow: after the utility model is installed, tools are prepared, all parts are cleaned, the opening of the limit sleeve 7 is placed upwards, the sealing filler is placed in the filler pipe 5, the filler press ring 4 is placed in the filler pipe 5, the sealing filler is compacted, the filler press ring 4 and the filler pipe 5 are fixed by bolts, the limit pipe 1 is placed in the filler pipe 5, the hole sites on the flanges are aligned, the metal measuring ruler 18 passes through the limit hole 19, the fixing bolt 9 is penetrated from bottom to top after being aligned with the hole sites, before the fixing bolt 10 is penetrated, the outer end of the fixing bolt 9 is sleeved with a nut, the nut is turned over and sleeved, then the fixing bolt 9 passes through the upper fixing flange 10 and the damping and tensioning device 2, the top end of the fixing bolt 9 is sleeved with a nut, the expansion amount to be adjusted is determined according to the installation requirement, then the expansion joint is adjusted to the required expansion amount through the expansion measuring scale device 3, the size of the adjusted expansion amount can be directly observed through the metal measuring scale 18 and the scale 20 on the outer wall of the metal measuring scale device, so that the expansion joint can be conveniently adjusted in expansion amount, the expansion amount adjustment measurement is more accurate and timely, the installation efficiency is improved, the expansion joint is connected between pipelines to be connected after being adjusted and installed, in the working process of the expansion joint, the variable quantity of the expansion joint in the working state can be observed at any time through the expansion measuring scale device 3, the adjustment can be made timely, the stability and the safety are improved, in addition, when the expansion joint is vibrated or expanded, the vibration impact force can be reduced through the vibration absorption tensioning device 2, the fixing nut can be kept in the tensioning state all the time to prevent loosening, the vibration ring 13 slides up and down in the vibration absorption chamber 16, and the vibration is weakened through the spring 15, the impact force that fixing bolt 9 received can effectively be alleviateed, prevent that fixing bolt 9 atress from leading to fracture or warp too big, improve the upper limit of the impact force that fixing bolt 9 bore, increase fixing bolt 9's life, improve fixed stability, damping ring 13 can give fixing bolt 9 an outside tensile force all the time simultaneously, can effectively prevent that fixation nut is not hard up, and it is more firm to make the fixing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Ultra-low temperature filler expansion joint, including spacing pipe (1) and last flange (11), its characterized in that: the upper end of the limiting pipe (1) is connected with an upper connecting flange (11), the upper side of the outer end of the limiting pipe (1) is connected with an upper fixing flange (10), the outer side of the upper end of the upper fixing flange (10) is provided with a plurality of damping tensioning devices (2), the outer side of the lower end of the upper fixing flange (10) is provided with a plurality of telescopic measuring scale devices (3), a plurality of damping tensioning devices (2) are internally provided with fixing bolts (9) in a vertically penetrating manner, the lower end of the limiting pipe (1) is sleeved with a filler pipe (5), the inner part of the upper end of the filler pipe (5) is upwards penetrated with a filler press ring (4), the upper end of the filler pipe (5) is connected with a lower fixing flange (8), the lower end of the filler pipe (5) is connected with a limiting sleeve (7), the lower end of the limiting sleeve (7) is connected with a lower connecting flange (6), the damping tensioning devices (2) comprise an upper sliding hole (12), a damping ring (13), a damping seat (14), a spring (15), a damping chamber (16) and a lower sliding hole (17), the damping seat (14) is arranged in front side of the outer wall of the upper fixing flange (10), and the damping chamber (16) is provided with a damping chamber (17), spring (15) upper end is provided with damping ring (13), damping ring (13) is inside to run through from top to bottom has last slide opening (12), flexible measuring tape device (3) are including metal measuring tape (18), spacing hole (19) and scale (20), it is connected with metal measuring tape (18) to go up mounting flange (10) lower extreme outer wall front side, be provided with scale (20) on metal measuring tape (18) outer end outer wall, it has spacing hole (19) to run through from top to bottom to pack clamping ring (4) and mounting flange (8) inside all.

2. The ultra-low temperature filler expansion joint as set forth in claim 1, wherein: go up flange (11) and flange (6) and last mounting flange (10) and mounting flange (8) excircle radius homogeneous phase down equal down, inside gland packing that is provided with of gland packing (5), packing clamping ring (4) are "protruding" shape setting and narrow down under wide.

3. The ultra-low temperature packing expansion joint of claim 1, wherein: pack clamping ring (4) upside ring excircle radius and lower mounting flange (8) excircle radius and equal, pack clamping ring (4) downside hoop and go up to run through inside filling tube (5) and fix sealing filler inside filling tube (5), sealing filler adopts the ultra-low temperature material to make and forms, pack clamping ring (4) and lower mounting flange (8) through bolt fixed connection.

4. The ultra-low temperature packing expansion joint of claim 1, wherein: the inner circle radius of the limiting pipe (1) is equal to the inner circle radius of the limiting sleeve (7), the upper fixing flange (10) is fixedly connected with the lower fixing flange (8) through the fixing bolt (9), the fixing bolt (9) penetrates through the interior of the packing compression ring (4) from top to bottom, and the packing compression ring (4) can slide up and down.

5. The ultra-low temperature filler expansion joint as set forth in claim 1, wherein: go up slide opening (12) and lower slide opening (17) on same axis and interior circle radius equal, go up slide opening (12) and lower slide opening (17) and communicate each other through shock attenuation room (16), damping ring (13) can slide from top to bottom in shock attenuation room (16) inside, fixing bolt (9) can slide from top to bottom in last slide opening (12) and lower slide opening (17) and shock attenuation room (16) inside.

6. The ultra-low temperature packing expansion joint of claim 1, wherein: metal measuring tape (18) can reciprocate in spacing hole (19) inside, expansion joint's flexible volume can be measured through scale (20) in spacing pipe (1), metal measuring tape (18) adopt the stainless steel to make and form, pack clamping ring (4) and spacing hole (19) on lower mounting flange (8) and all on same axis and interior circle radius equal.

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