CN211925156U - A heat preservation pipeline for LNG gas station's U type pipeline - Google Patents
A heat preservation pipeline for LNG gas station's U type pipeline Download PDFInfo
- Publication number
- CN211925156U CN211925156U CN201820955706.7U CN201820955706U CN211925156U CN 211925156 U CN211925156 U CN 211925156U CN 201820955706 U CN201820955706 U CN 201820955706U CN 211925156 U CN211925156 U CN 211925156U
- Authority
- CN
- China
- Prior art keywords
- outer shell
- straight
- shell
- section
- folded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses a be applied to U type pipeline's at LNG gas station heat preservation pipeline belongs to pipeline external use's auxiliary member technical field for solve among the current shell heat preservation to the pipeline of the section of bending not protect basically, caused calorific loss, thereby influence the problem of heat preservation effect. The bending device comprises a straight line section and a bending section, wherein the straight line section comprises a straight outer shell and a straight inner shell, and the sections of the straight outer shell and the straight inner shell are both circular; the outer edge of the straight inner shell is continuously arranged on the inner edge of the straight outer shell; the bending section is in a hollow shape and comprises a bending outer shell and a bending inner shell, the outer edge of the bending inner shell is continuously arranged on the inner edge of the bending outer shell, and the bending outer shell is connected with the straight outer shell.
Description
Technical Field
The utility model relates to an auxiliary member technical field of pipeline external use, concretely relates to a heat preservation pipeline for U type pipeline of LNG gas station.
Background
The heat preservation pipeline is widely used for liquid and gas conveying pipe networks, the pipeline heat preservation is a very important link on the heat preservation conveying pipeline, and whether the link succeeds or not directly relates to whether the pipeline can be put into use formally or not.
At present, the insulating tube who generally adopts to LNG gas station pipeline is the tube heat preservation, and current insulation tube shell is mostly the heat preservation to sharp pipeline, but current pipeline has no matter there is the straightway, because the restriction in space, often has the pipeline of the section of bending, does not protect the pipeline of the section of bending basically in current tube heat preservation, so led to the fact calorific loss to influence the heat preservation effect.
Meanwhile, the structure of the existing heat-insulating pipe shell inevitably encounters the problem of a thermal bridge, namely, the heat radiation radiates heat outwards through a gap between the pipe shell and the pipe shell, so that the heat loss is caused, and the heat-insulating effect is influenced. Meanwhile, the heat preservation effect of the existing heat preservation pipe shell is also to be improved.
Meanwhile, in the prior art, the heat-insulating pipeline is mostly fixed by an external rope, the fixed rope is wound on the shell of the heat-insulating pipeline, more use space is occupied, and the heat-insulating shell is fixed in the mode, so that the actual installation efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the background art, the utility model provides a be applied to LNG gas station's U type pipeline's heat preservation pipeline.
In order to solve the technical problem, the utility model provides a following technical scheme:
the heat insulation pipeline applied to the U-shaped conveying pipeline of the LNG filling station comprises a straight line section and a bending section, wherein the straight line section comprises a straight outer shell and a straight inner shell, and the sections of the straight outer shell and the straight inner shell are both circular; the outer edge of the straight inner shell is continuously arranged on the inner edge of the straight outer shell; the bending section is in a hollow shape and comprises a bending outer shell and a bending inner shell, the outer edge of the bending inner shell is continuously arranged on the inner edge of the bending outer shell, and the bending outer shell is connected with the straight outer shell.
The utility model discloses install the straight shell body of straightway on pipeline earlier at the during operation, then install the portion of bending at pipeline at the book shell body of selecting the suitable section of bending according to the degree of bending of pipeline to the both ends of rolling over the shell body link to each other with the straight shell body that corresponds respectively. Simultaneously, the shell body is rolled over in the same installation of the pipeline's of the other end of straight shell body section of bending to the both ends of rolling over the shell body are connected with straight shell body respectively.
Further, the straight outer shell comprises a straight upper outer shell and a straight lower outer shell, a first dovetail groove is formed in the cross section of the side wall of one end of the straight upper outer shell in the axial direction, a first fixture block with a trapezoidal cross section is arranged in the cross section of the side wall of the other end of the straight upper outer shell in the axial direction, a second fixture block with a trapezoidal cross section and matched with the second fixture block is arranged on the cross section of the side wall of the straight lower outer shell corresponding to the first dovetail groove, and a second dovetail groove and matched with the second fixture block are arranged on the cross section of the side wall of the straight lower outer shell; the upper straight shell body and the lower straight shell body are movably connected through the matching of the first clamping block and the second dovetail groove as well as the matching of the second clamping block and the first dovetail groove. Directly go up the shell body and directly install respectively in pipeline's upper and lower both sides down the shell body, then slide in opposite directions for directly go up the first fixture block joint of shell body in the second dovetail of shell body under directly, directly down the second fixture block joint of shell body in the first dovetail of shell body directly simultaneously, the utility model discloses a joint of first fixture block and second dovetail and second fixture block and first dovetail makes the shell body of the heat preservation pipeline after the installation smooth, do not have the fastener of any rope class, has saved the fixed space of installation to installation efficiency has been improved.
Furthermore, the folded outer shell comprises an upper folded outer shell and a lower folded outer shell, a third fixture block with a trapezoidal section is radially arranged on the cross section of the side wall of the upper straight outer shell close to one end of the upper folded outer shell, and a third dovetail groove with a trapezoidal section is radially arranged on the cross section of the side wall of the upper straight outer shell close to the other end of the upper folded outer shell; a fourth clamping block with a trapezoidal section is radially arranged on the side wall section close to one end of the folded outer shell of the straight lower outer shell, and a fourth dovetail groove with a trapezoidal section is radially arranged on the side wall section close to the other end of the folded outer lower shell of the straight lower outer shell;
a fifth clamping block matched with the third dovetail groove is arranged on the cross section of the side wall at one end of the upper folded outer shell along the radial direction, a fifth dovetail groove matched with the third clamping block is arranged on the cross section of the side wall at the other end of the upper folded outer shell along the radial direction, a sixth clamping block matched with the fourth dovetail groove is arranged on the cross section of the side wall at one end of the lower folded outer shell along the radial direction, a sixth dovetail groove matched with the fourth clamping block is arranged on the cross section of the side wall at the other end of the lower folded outer shell along the radial direction, and the upper folded outer shell and the upper straight outer shell are movably connected through the matching of the third; the lower folded outer shell and the lower straight outer shell are movably connected through the matching of a fourth clamping block and a sixth dovetail groove as well as the matching of the sixth clamping block and the fourth dovetail groove. The upper folding outer shell and the lower folding outer shell are respectively arranged at the upper side and the lower side of a turning part of the conveying pipeline, then a fifth clamping block at one end of the upper folding outer shell is clamped in a third dovetail groove of the upper straight outer shell, a fifth dovetail groove at the other end of the upper folding outer shell is clamped in a third clamping block of the upper straight outer shell, a sixth clamping block at one end of the lower folding outer shell is clamped in a fourth dovetail groove of the lower straight outer shell, and a sixth dovetail groove at the other end of the lower folding outer shell is clamped in a fourth clamping block of the lower straight outer shell; the folded outer shell and the straight outer shell of the conveying pipeline are fixedly connected through the sixth clamping block, the fourth dovetail groove, the fourth clamping block and the sixth dovetail groove in a clamped mode. The heat-insulating pipe shell of the conveying pipeline with the bending part is installed in a clamping mode, the heat-insulating pipe shell can be installed at the bending part of the conveying pipeline with different bending degrees flexibly, the outer surface of the heat-insulating pipe shell is smooth after installation, no fastening piece such as a rope is arranged, the space for installing and fixing is saved, and the installation efficiency is improved.
Further, the straight inner shell comprises two straight half shells with the same structure, a seventh clamping block with a trapezoidal section is arranged on an outer ring of each straight half shell in the axial direction, a seventh dovetail groove matched with the seventh clamping block is arranged on an inner ring of the straight outer shell, and the straight inner shell and the straight outer shell are movably connected through the matching of the seventh clamping block and the seventh dovetail groove.
Further, the straight half-shell includes a straight sandwich body, and a plurality of protrusions are arranged on both the inner side and the outer side of the sandwich body. The raised arrangement changes the surface contact between the conveying pipeline and the outer shell into point contact, reduces the contact area, further reduces the heat transfer and dissipation, and is beneficial to improving the heat preservation effect.
Furthermore, the folding inner shell comprises two folding half shells with the same structure, and the outer ring of each folding half shell is connected and attached with the inner ring of the folding inner shell.
Further, the bulge between the straight interlayer body and the straight outer shell is made of hard rubber. The hard rubber can prevent the heat-insulation shell from expanding with heat and contracting with cold or prevent other external objects from impacting the heat-insulation shell during installation and later use of the heat-insulation shell, and plays a role in buffering and protecting the conveying pipeline.
Further, the outer shell is gone up to the straight, the shell body is gone up to the book and the shell body is gone up to the straight shell body and the shell body is gone down and the outer fringe of shell body down between the straight is equipped with corresponding snap ring respectively, connects through the fixed pin in two snap rings. The fixed pin is connected can further be fixed and go up the shell body and roll over the shell body and directly under the shell body and roll over the shell body down. So that its axial displacement after installation is further enhanced.
Furthermore, the surfaces of the straight outer shell and the folded outer shell are coated with anti-corrosion layers, and the anti-corrosion layers can prolong the service life of the straight outer shell and the folded outer shell.
Compared with the prior art, the utility model beneficial effect who has is:
1. the utility model discloses install the straight shell body of straightway on pipeline earlier at the during operation, then install the portion of bending at pipeline at the book shell body of selecting the suitable section of bending according to the degree of bending of pipeline to the both ends of rolling over the shell body link to each other with the straight shell body that corresponds respectively. Simultaneously, the shell body is rolled over in the same installation of the pipeline's of the other end of straight shell body section of bending to the both ends of rolling over the shell body are connected with straight shell body respectively.
The utility model discloses a joint of first fixture block and second dovetail and second fixture block and first dovetail makes the shell body of the insulating tube after the installation smooth, do not have the fastener of any rope class, has saved the fixed space of installation to the installation effectiveness has been improved.
The utility model fixedly connects the upper folding outer shell and the upper straight outer shell of the conveying pipeline through the clamping connection of the fifth clamping block and the third dovetail groove as well as the third clamping block and the fifth dovetail groove; the folded outer shell and the straight outer shell of the conveying pipeline are fixedly connected through the sixth clamping block, the fourth dovetail groove, the fourth clamping block and the sixth dovetail groove in a clamped mode. The heat-insulating pipe shell of the conveying pipeline with the bending part is installed in a clamping mode, the heat-insulating pipe shell can be installed at the bending part of the conveying pipeline with different bending degrees flexibly, the outer surface of the heat-insulating pipe shell is smooth after installation, no fastening piece such as a rope is arranged, the space for installing and fixing is saved, and the installation efficiency is improved.
2. The utility model discloses a be in the same place by dovetail and fixture block joint between the insulating tube, owing to be that the cross-section of dovetail and fixture block all is trapezoidal, so the shell body is gone up directly and the connection gap between the shell body is not a straight line down for the heat radiation can the heat of external radiation fall to minimumly through the gap between tube and the tube, leads to calorific loss significantly reduced, thereby has strengthened the heat preservation effect.
3. The straight half shell comprises a straight sandwich body, and a plurality of bulges are arranged on the inner side and the outer side of the sandwich body. The raised arrangement changes the surface contact between the conveying pipeline and the outer shell into point contact, reduces the contact area, further reduces the heat transfer and dissipation, and is beneficial to improving the heat preservation effect.
4. The utility model discloses a protruding between intermediate layer body and the shell body is hard rubber. The hard rubber can prevent the heat-insulation shell from expanding with heat and contracting with cold or prevent other external objects from impacting the heat-insulation shell during installation and later use of the heat-insulation shell, and plays a role in buffering and protecting the conveying pipeline.
5. The utility model discloses a go up the shell body directly and roll over the shell body and directly down the shell body and roll over and be equipped with corresponding snap ring respectively in the outer fringe of junction between the shell body down, connect through the fixed pin in two snap rings. The fixed pin is connected can further be fixed and go up the shell body and roll over the shell body and directly under the shell body and roll over the shell body down. So that its axial displacement after installation is further enhanced.
6. The surface of the upper shell and the surface of the lower shell are coated with anti-corrosion layers. Can prolong the service life.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a front view of the present invention with a straight line segment;
FIG. 3 is an elevation view of the present invention with straight segments removed;
fig. 4 is a schematic view of the connection between the folded upper shell and the straight upper shell of the present invention;
FIG. 5 is a schematic view of the connection between the folded casing and the straight casing of the present invention;
fig. 6 is a schematic structural view of the folded casing of the present invention.
The labels in the figure are: 1-straight line segment, 2-bent segment, 3-straight upper outer shell, 4-straight lower outer shell, 5-first dovetail groove, 6-first fixture block, 7-second fixture block, 8-second dovetail groove, 9-bent upper outer shell, 10-bent lower outer shell, 11-third fixture block, 12-third dovetail groove, 13-fourth fixture block, 14-fourth dovetail groove, 15-fifth fixture block, 16-fifth dovetail groove, 17-sixth dovetail groove, 18-sixth fixture block, 19-straight half shell, 20-seventh fixture block, 21-seventh dovetail groove, 22-straight sandwich body, 23-bulge, 24-bent half shell, 25-snap ring and 26-fixing pin.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-6, the heat insulation pipeline applied to the U-shaped conveying pipeline of the LNG gas station comprises a straight line section 1 and a bent section 2, wherein the straight line section 1 comprises a straight outer shell and a straight inner shell, and the sections of the straight outer shell and the straight inner shell are both circular; the outer edge of the straight inner shell is continuously arranged on the inner edge of the straight outer shell; the bending section 2 is in a hollow shape, the bending section 2 comprises a bending outer shell and a bending inner shell, the outer edge of the bending inner shell is continuously arranged on the inner edge of the bending outer shell, and the bending outer shell is connected with a straight outer shell.
The straight outer shell comprises a straight upper outer shell 3 and a straight lower outer shell 4, a first dovetail groove 5 is axially arranged on the side wall section at one end of the straight upper outer shell 3, a first fixture block 6 with a trapezoidal section is axially arranged on the side wall section at the other end of the straight upper outer shell 3, a second fixture block 7 with a matched trapezoidal section is arranged on the side wall section corresponding to the first dovetail groove 5 of the straight lower outer shell 4, and a second dovetail groove 8 with a matched section is arranged on the side wall section corresponding to the first fixture block 6 of the straight lower outer shell 4; the upper straight outer shell 3 and the lower straight outer shell 4 are movably connected through the matching of a first fixture block 6, a second dovetail groove 8, a second fixture block 7 and a first dovetail groove 5.
The folded outer shell comprises an upper folded outer shell 9 and a lower folded outer shell 10, a third fixture block 11 with a trapezoidal section is radially arranged on the side wall section of the upper straight outer shell 3 close to one end of the upper folded outer shell 9, and a third dovetail groove 12 with a trapezoidal section is radially arranged on the side wall section of the upper straight outer shell 3 close to the other end of the upper folded outer shell 9; a fourth fixture block 13 with a trapezoidal section is radially arranged on the side wall section of the straight lower outer shell 4 close to one end of the folded lower outer shell 10, and a fourth dovetail groove 14 with a trapezoidal section is radially arranged on the side wall section of the straight lower outer shell 4 close to the other end of the folded lower outer shell;
a fifth fixture block 15 matched with the third dovetail groove 12 is arranged on the cross section of the side wall at one end of the upper folded outer shell 9 along the radial direction, a fifth dovetail groove 16 matched with the third fixture block 11 is arranged on the cross section of the side wall at the other end of the upper folded outer shell 9 along the radial direction, a sixth fixture block 18 matched with the fourth dovetail groove 14 is arranged on the cross section of the side wall at one end of the lower folded outer shell 10 along the radial direction, a sixth dovetail groove 17 matched with the fourth fixture block 13 is arranged on the cross section of the side wall at the other end of the lower folded outer shell 10 along the radial direction, and the upper folded outer shell 9 and the straight upper outer shell 3 are movably connected through the matching of the third fixture block 11 and; the lower folded outer shell 10 and the lower straight outer shell 4 are movably connected through the matching of a fourth fixture block 13, a sixth dovetail groove 17, a sixth fixture block 18 and a fourth dovetail groove 14. The upper outer shell 9 and the lower outer shell 10 are respectively arranged at the upper side and the lower side of the turning part of the conveying pipeline, then a fifth clamping block 15 at one end of the upper outer shell 9 is clamped in a third dovetail groove 12 of the upper outer shell 3, a fifth dovetail groove 16 at the other end of the upper outer shell 9 is clamped in a third clamping block 11 of the upper outer shell 3, a sixth clamping block 18 at one end of the lower outer shell 10 is clamped in a fourth dovetail groove 14 of the lower outer shell 4, and a sixth dovetail groove 17 at the other end of the lower outer shell 10 is clamped in a fourth clamping block 13 of the lower outer shell 4. The surfaces of the straight outer shell and the folded outer shell are coated with anti-corrosion layers, and the anti-corrosion layers can prolong the service life of the straight outer shell and the folded outer shell.
For better implementation of the embodiment, corresponding snap rings 25 are respectively arranged on the outer edges of the joints between the straight upper outer shell 3 and the folded upper outer shell 9 and between the straight lower outer shell 4 and the folded lower outer shell 10, and the two snap rings 25 are connected by a fixing pin 26. The fixing pin 26 connection can further fix the straight upper outer shell 3 and the folded upper outer shell 9 and the straight lower outer shell 4 and the folded lower outer shell 10. So that its axial displacement after installation is further enhanced.
In order to better implement the embodiment, the surfaces of the straight outer shell and the folded outer shell are coated with anti-corrosion layers, and the anti-corrosion layers can prolong the service life of the straight outer shell and the folded outer shell.
The utility model discloses a theory of operation: the utility model discloses a be applied to U type pipeline's of LNG gas station heat preservation pipeline installs straightway 1's straight shell body on pipeline earlier at the during operation, then selects the suitable section 2 of bending's a book shell body to install the portion of bending at pipeline according to the degree of bending of pipeline to the both ends of rolling over the shell body link to each other with the straight shell body that corresponds respectively. Simultaneously, the shell body is rolled over in the same installation of the section of bending 2 of the pipeline of the other end of straight shell body to the both ends of rolling over the shell body are connected with straight shell body respectively.
Directly go up shell body 3 and directly install respectively in pipeline's upper and lower both sides down shell body 4, then slide in opposite directions for directly go up shell body 3's 6 joints of first fixture block in directly down shell body 4's second dovetail 8, directly down shell body 4's 7 joints of second fixture block in directly going up shell body 3's first dovetail 5 simultaneously, the utility model discloses a first fixture block 6 and second dovetail 8 and second fixture block 7 and first dovetail 5's joint make the shell body of the insulating tube after the installation smooth, do not have the fastener of any rope class, saved the fixed space of installation to installation effectiveness has been improved.
The utility model fixedly connects the upper folding outer shell 9 and the upper straight outer shell 3 of the conveying pipeline through the clamping connection of the fifth fixture block 15 and the third dovetail groove 12 as well as the third fixture block 11 and the fifth dovetail groove 16; the folded outer shell 10 and the straight outer shell 4 of the conveying pipeline are fixedly connected through clamping of the sixth fixture block 18 and the fourth dovetail groove 14 and clamping of the fourth fixture block 13 and the sixth dovetail groove 17. The heat-insulating pipe shell of the conveying pipeline with the bending part is installed in a clamping mode, the heat-insulating pipe shell can be installed at the bending part of the conveying pipeline with different bending degrees flexibly, the outer surface of the heat-insulating pipe shell is smooth after installation, no fastening piece such as a rope is arranged, the space for installing and fixing is saved, and the installation efficiency is improved.
The straight inner shell comprises two straight half shells 19 with the same structure, a seventh fixture block 20 with a trapezoidal section is axially arranged on an outer ring of each straight half shell 19, a seventh dovetail groove 21 matched with the seventh fixture block 20 is arranged on an inner ring of each straight outer shell, and the straight inner shell and the straight outer shell are movably connected through the matching of the seventh fixture block 20 and the seventh dovetail groove 21.
Example 2:
as shown in fig. 1-6, the present embodiment is further optimized based on embodiment 1, and the present embodiment focuses on the improvement of embodiment 1, and the same points are not repeated, in the present embodiment, the straight half-shell 19 includes a straight sandwich body 22, and both the inner side and the outer side of the sandwich body are provided with a plurality of protrusions 23. The arrangement of the bulge 23 changes the surface contact between the conveying pipeline and the outer shell into point contact, reduces the contact area, further reduces the heat transfer and dissipation, and is beneficial to improving the heat preservation effect.
The folding inner shell comprises two folding half shells 24 with the same structure, and the outer rings of the folding half shells 24 are connected and attached with the inner rings of the folding inner shell.
Further, the protrusion 23 between the straight sandwich body 22 and the straight outer shell is made of hard rubber. The hard rubber can prevent the heat-insulation shell from expanding with heat and contracting with cold or prevent other external objects from impacting the heat-insulation shell during installation and later use of the heat-insulation shell, and plays a role in buffering and protecting the conveying pipeline.
Example 3:
as shown in fig. 1 to 6, the present embodiment is further optimized based on embodiment 2, and this embodiment focuses on the improvement compared to embodiment 1, and the details of the same are not repeated, and in this embodiment, the protrusion 23 between the sandwich body and the outer shell is made of hard rubber. The hard rubber can prevent the heat-insulation shell from expanding with heat and contracting with cold or prevent other external objects from impacting the heat-insulation shell during installation and later use of the heat-insulation shell, and plays a role in buffering and protecting the conveying pipeline.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The heat insulation pipeline applied to the U-shaped conveying pipeline of the LNG filling station is characterized by comprising a straight line section (1) and a bending section (2), wherein the straight line section (1) comprises a straight outer shell and a straight inner shell, and the sections of the straight outer shell and the straight inner shell are both circular; the outer edge of the straight inner shell is continuously arranged on the inner edge of the straight outer shell; the bending section (2) is hollow, the bending section (2) comprises a bending outer shell and a bending inner shell, the outer edge of the bending inner shell is continuously arranged on the inner edge of the bending outer shell, and the bending outer shell is connected with a straight outer shell.
2. The heat insulation pipeline applied to the U-shaped conveying pipeline of the LNG filling station is characterized in that the straight outer shell comprises a straight upper outer shell (3) and a straight lower outer shell (4), a first dovetail groove (5) is formed in the cross section of the side wall of one end of the straight upper outer shell (3) in the axial direction, a first fixture block (6) with a trapezoidal cross section is formed in the cross section of the side wall of the other end of the straight upper outer shell (3) in the axial direction, a second fixture block (7) with a matched trapezoidal cross section is arranged on the cross section of the side wall of the straight lower outer shell (4) corresponding to the first dovetail groove (5), and a second dovetail groove (8) with a matched cross section is formed in the cross section of the side wall of the straight lower outer shell (4) corresponding to the first fixture block (6); the upper straight outer shell (3) and the lower straight outer shell (4) are movably connected through the matching of a first clamping block (6), a second dovetail groove (8), a second clamping block (7) and a first dovetail groove (5).
3. The heat-insulating pipeline applied to the U-shaped conveying pipeline of the LNG filling station is characterized in that the folded outer shell comprises an upper folded outer shell (9) and a lower folded outer shell (10), a third clamping block (11) with a trapezoidal section is radially arranged on the side wall section of the upper straight outer shell (3) close to one end of the upper folded outer shell (9), and a third dovetail groove (12) with a trapezoidal section is radially arranged on the side wall section of the upper straight outer shell (3) close to the other end of the upper folded outer shell (9); a fourth clamping block (13) with a trapezoidal section is radially arranged on the side wall section of one end, close to the folded lower outer shell (10), of the straight lower outer shell (4), and a fourth dovetail groove (14) with a trapezoidal section is radially arranged on the side wall section of the other end, close to the folded lower outer shell, of the straight lower outer shell (4);
a fifth clamping block (15) matched with the third dovetail groove (12) is arranged on the cross section of the side wall at one end of the upper folded outer shell (9) along the radial direction, a fifth dovetail groove (16) matched with the third clamping block (11) is arranged on the cross section of the side wall at the other end of the upper folded outer shell (9) along the radial direction, a sixth clamping block (18) matched with the fourth dovetail groove (14) is arranged on the cross section of the side wall at one end of the lower folded outer shell (10) along the radial direction, a sixth dovetail groove (17) matched with the fourth clamping block (13) is arranged on the cross section of the side wall at the other end of the lower folded outer shell (10) along the radial direction, and the upper folded outer shell (9) and the upper straight outer shell (3) are movably connected through the matching of the third clamping block (11) and the; the lower folding outer shell (10) and the lower straight outer shell (4) are movably connected through the matching of a fourth clamping block (13), a sixth dovetail groove (17), a sixth clamping block (18) and a fourth dovetail groove (14).
4. The heat-insulating pipeline applied to the U-shaped conveying pipeline of the LNG filling station is characterized in that the straight inner shell comprises two straight half shells (19) with the same structure, a seventh fixture block (20) with a trapezoidal section is axially arranged on an outer ring of each straight half shell (19), a seventh dovetail groove (21) matched with the seventh fixture block (20) is arranged on an inner ring of each straight outer shell, and the straight inner shell and the straight outer shell are movably connected through the seventh fixture block (20) and the seventh dovetail groove (21).
5. The insulated pipe of claim 4, wherein the straight half-shell (19) comprises a straight sandwich body (22), and the sandwich body has a plurality of protrusions (23) on both the inner and outer sides.
6. The insulated pipeline of the U-shaped conveying pipeline applied to the LNG filling station is characterized in that the folded inner shell body comprises two folded half shell bodies (24) with the same structure, and the outer ring of each folded half shell body (24) is connected and attached with the inner ring of the corresponding folded inner shell body.
7. The insulated pipe of U-shaped conveying pipeline for LNG filling station of claim 5, characterized in that the protrusion (23) between the straight sandwich body (22) and the straight outer shell is hard rubber.
8. The heat-insulating pipeline applied to the U-shaped conveying pipeline of the LNG filling station is characterized in that corresponding clamping rings (25) are respectively arranged on the outer edges of the joints between the straight upper outer shell (3) and the folded upper outer shell (9) and between the straight lower outer shell (4) and the folded lower outer shell (10), and the two clamping rings (25) are connected through fixing pins (26).
9. The insulated pipe for the U-shaped conveying pipeline of the LNG filling station as claimed in claim 1, wherein the surfaces of the straight outer shell and the folded outer shell are coated with an anti-corrosion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955706.7U CN211925156U (en) | 2018-06-21 | 2018-06-21 | A heat preservation pipeline for LNG gas station's U type pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955706.7U CN211925156U (en) | 2018-06-21 | 2018-06-21 | A heat preservation pipeline for LNG gas station's U type pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211925156U true CN211925156U (en) | 2020-11-13 |
Family
ID=73317935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820955706.7U Active CN211925156U (en) | 2018-06-21 | 2018-06-21 | A heat preservation pipeline for LNG gas station's U type pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211925156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183629A (en) * | 2021-11-15 | 2022-03-15 | 核工业西南物理研究院 | Pipeline heat-insulating layer structure capable of being locally disassembled and assembled and design and installation method thereof |
-
2018
- 2018-06-21 CN CN201820955706.7U patent/CN211925156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183629A (en) * | 2021-11-15 | 2022-03-15 | 核工业西南物理研究院 | Pipeline heat-insulating layer structure capable of being locally disassembled and assembled and design and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211925156U (en) | A heat preservation pipeline for LNG gas station's U type pipeline | |
| CN109563960B (en) | Delivery pipe | |
| JP4899808B2 (en) | Curved pipe section of heat insulating multi-pipe for superconducting power transmission | |
| MXPA06002665A (en) | Improved spacing and centring device for a rigid double-wall duct with a low heat transfer coefficient. | |
| CN111120781A (en) | Cold shield structure for low-temperature transmission pipeline | |
| CN215371570U (en) | Heat-insulating fixing support for internal thermal pipeline of comprehensive pipe rack | |
| CN205001767U (en) | Integration vacuum transmission pipe | |
| CN210179156U (en) | Straight pipe by-pass type pressure balance corrugated expansion joint | |
| CN107606344A (en) | A kind of bindiny mechanism of municipal pipeline | |
| CN110578847B (en) | Heating heat preservation pipe elbow | |
| CN219035939U (en) | Compensating pipe structure of heating power pipeline | |
| CN215893388U (en) | Middle tube plate sliding protective sleeve for assembling heat exchange tube with easily damaged coating on surface | |
| CN212718698U (en) | Ultrahigh pressure hose resistant to high temperature of 200 DEG C | |
| CN215491272U (en) | Sealing protection sleeve for assembling heat exchange tube with easily damaged coating on surface | |
| CN219755706U (en) | Double-curvature bent pipe compensator | |
| CN216590533U (en) | High-temperature-resistant corrugated pipe | |
| CN212776135U (en) | Connecting structure for hydraulic hose | |
| CN213201945U (en) | Cable hanging wall protection device | |
| CN215335131U (en) | Flexible sealed corrugated pipe compensator | |
| US6422611B1 (en) | Contractible joint device for metal conduit | |
| CN104100806A (en) | Heat insulation pipe shell for LNG (liquefied natural gas) filling station pipeline | |
| CN211040089U (en) | L NG metal expansion joint | |
| CN215445512U (en) | Prefabricated heat preservation elbow of anti pipeline axial stress of outer pillar of integral ripple structure | |
| CN215810384U (en) | Connecting device for heat pipe | |
| CN218845398U (en) | Anti-freezing joint of hydraulic pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |