Thermal-insulation waterproof fully-buried expansion joint
Technical Field
The utility model relates to the technical field of pipeline connection, in particular to a thermal-insulation waterproof fully-buried expansion joint.
Background
The expansion joint is a flexible element which can effectively play a role in compensating axial deformation, is welded on the shell of the fixed tube-sheet type heat exchanger, has large axial flexibility and is easy to deform, and can compensate thermal expansion difference of the tube and the shell caused by different wall temperatures, and reduce the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube sheet and the shell and avoiding the damage caused by strength damage, instability damage and tube pull-out damage. The expansion joint has a plurality of types, and commonly used structures such as wave form, ring plate welding and clamping type are adopted, wherein the wave form expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.
The existing expansion joint has poor heat preservation effect, is inconvenient for workers to install and detach, and affects the workload of maintenance workers.
Disclosure of utility model
The utility model aims to provide a thermal-insulation waterproof fully-buried expansion joint, which aims to solve the problems that the existing expansion joint is poor in thermal insulation effect, inconvenient for workers to install and disassemble and affects the workload of maintenance workers.
In order to achieve the above object, the utility model provides a thermal insulation waterproof fully-buried expansion joint, which comprises a working corrugated pipe, a first connecting pipe, a second connecting pipe, a fixed ring, a thermal insulation ring, a first sealing ring, a second sealing ring, a first bolt, a buffer component, a reinforcing component and two groups of connecting components, wherein the two groups of connecting components are respectively arranged at two ends of the working corrugated pipe, the first connecting pipe is arranged at one end of the working corrugated pipe, the second connecting pipe is arranged at the other end of the working corrugated pipe, the fixed ring is fixedly connected with the first connecting pipe and is positioned on the outer side wall of the first connecting pipe, the first sealing ring is fixedly connected with the first connecting pipe and is positioned on the outer side wall of the first connecting pipe, the thermal insulation ring is detachably connected with the fixed ring and is positioned on one side of the fixed ring, the thermal insulation ring is movably matched with the first sealing ring, the fixed ring is provided with a threaded hole, the threaded hole is in threaded fit with the first bolt, the second sealing ring is fixedly connected with the second connecting pipe and is positioned on the outer side wall of the first connecting pipe, the first sealing ring is arranged on the outer side wall of the buffer component, and the thermal insulation component is arranged on the outer side wall of the first connecting pipe.
The buffer component comprises a first right-angle ring, a second right-angle ring, a first baffle ring, a second baffle ring, a spring and a third sealing ring, wherein the first right-angle ring is fixedly connected with the first connecting pipe and is positioned on the outer side wall of the first connecting pipe, the second right-angle ring is fixedly connected with the second connecting pipe and is positioned on the outer side wall of the second connecting pipe, the second right-angle ring is in sliding fit with the first right-angle ring, the first baffle ring is fixedly connected with the first right-angle ring and is positioned on the outer side wall of the first right-angle ring, the first baffle ring is in contact with the second right-angle ring, the second baffle ring is fixedly connected with the second right-angle ring and is positioned on the inner side wall of the second right-angle ring, the second baffle ring is in contact with the first right-angle ring, one end of the spring is fixedly connected with the first baffle ring and is positioned on one side of the first baffle ring, the other end of the spring is fixedly connected with the second baffle ring and is positioned on the first sealing ring, the second right-angle ring is in contact with the third sealing groove, the second sealing ring is in contact with the third sealing ring, and the sealing ring is in contact with the first sealing groove.
The reinforcing component comprises an outer ring and reinforcing ribs, the outer ring is fixedly connected with the first connecting pipe and located on the outer side wall of the first connecting pipe, one end of each reinforcing rib is fixedly connected with the outer ring and located on the outer side wall of the outer ring, and the other end of each reinforcing rib is fixedly connected with the fixed ring and located on the outer side wall of the fixed ring.
The connecting assembly comprises a first flange, a second bolt and a third bolt, wherein the first flange is fixedly connected with the first connecting pipe and is positioned on the outer side wall of the first connecting pipe, the second bolt sequentially penetrates through the first flange and the working corrugated pipe, the second flange is fixedly connected with the second connecting pipe and is positioned on the outer side wall of the second connecting pipe, and the third bolt sequentially penetrates through the second flange and the working corrugated pipe.
The heat-insulating waterproof fully-buried expansion joint further comprises a fixing assembly, and the fixing assembly is arranged on the outer side wall of the heat-insulating ring.
The fixing assembly comprises a supporting frame and a mounting plate, wherein the supporting frame is fixedly connected with the heat preservation ring and is positioned on the outer side wall of the heat preservation ring, and the mounting plate is fixedly connected with the supporting frame and is positioned below the supporting frame.
According to the heat-insulating waterproof fully-buried expansion joint, the first connecting pipe and the second connecting pipe are respectively fixed with the two ends of the working corrugated pipe by utilizing the connecting assembly, the heat-insulating ring is fixed to one side of the fixing ring by the first bolt, the first sealing ring and the second sealing ring are used for sealing the heat-insulating ring, the reinforcing assembly increases the connectivity between the fixing ring and the first connecting pipe, the heat-insulating ring plays a role in heat insulation, and the buffer assembly can effectively relieve the pressure on the heat-insulating ring when the working corrugated pipe expands, so that the working corrugated pipe is enabled to have heat-insulating waterproof characteristics, and therefore workers can conveniently install and detach the heat-insulating expansion joint, and the workload of later maintenance staff is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic overall structure of a first embodiment of the present utility model.
Fig. 2 is an overall front view of the first embodiment of the present utility model.
Fig. 3 is an overall right side view of the first embodiment of the present utility model.
Fig. 4 is a cross-sectional view taken along line A-A of fig. 3 in accordance with the present utility model.
Fig. 5 is a schematic overall structure of a second embodiment of the present utility model.
Fig. 6 is an overall front view of a second embodiment of the present utility model.
The working bellows, 102-first connection pipe, 103-second connection pipe, 104-fixed ring, 105-insulating ring, 106-first sealing ring, 107-second sealing ring, 108-first bolt, 109-buffer component, 110-reinforcing component, 111-connection component, 112-first right angle ring, 113-second right angle ring, 114-first baffle ring, 115-second baffle ring, 116-spring, 117-third sealing ring, 118-outer ring, 119-reinforcing rib, 120-first flange, 121-second flange, 122-second bolt, 123-third bolt, 124-threaded hole, 125-sealing groove, 201-fixed component, 202-support frame, 203-mounting plate.
Detailed Description
The following detailed description of embodiments of the utility model, examples of which are illustrated in the accompanying drawings and, by way of example, are intended to be illustrative, and not to be construed as limiting, of the utility model.
First embodiment:
Referring to fig. 1 to 4, fig. 1 is a schematic overall structure of a first embodiment of the present utility model, fig. 2 is a front overall view of the first embodiment of the present utility model, fig. 3 is a right overall view of the first embodiment of the present utility model, and fig. 4 is a sectional view taken along line A-A of fig. 3 of the present utility model.
The utility model provides a thermal-insulation waterproof fully-buried expansion joint, which comprises a working corrugated pipe 101, a first connecting pipe 102, a second connecting pipe 103, a fixed ring 104, a thermal-insulation ring 105, a first sealing ring 106, a second sealing ring 107, a first bolt 108, a buffer assembly 109, a reinforcing assembly 110 and two groups of connecting assemblies 111, wherein the buffer assembly 109 comprises a first right-angle ring 112, a second right-angle ring 113, a first baffle ring 114, a second baffle ring 115, a spring 116 and a third sealing ring 117, the reinforcing assembly 110 comprises an outer ring 118 and reinforcing ribs 119, the connecting assembly 111 comprises a first flange 120, a second flange 121, a second bolt 122 and a third bolt 123, the fixed ring 104 and the thermal-insulation ring 105 are provided with threaded holes 124, and the thermal-insulation ring 105 is provided with a sealing groove 125.
For the present embodiment, two sets of connection assemblies 111 are respectively disposed at two ends of the working bellows 101, the first connection pipe 102 is disposed at one end of the working bellows 101, the second connection pipe 103 is disposed at the other end of the working bellows 101, the fixing ring 104 is fixedly connected with the first connection pipe 102 and is disposed on an outer side wall of the first connection pipe 102, the first sealing ring 106 is fixedly connected with the first connection pipe 102 and is disposed on an outer side wall of the first connection pipe 102, the heat-preserving ring 105 is detachably connected with the fixing ring 104 and is disposed at one side of the fixing ring 104, the heat-preserving ring 105 is movably matched with the first sealing ring 106, the fixing ring 104 and the heat-preserving ring 105 are provided with threaded holes 124, the threaded holes 124 are in threaded fit with the first bolts 108, the second sealing ring 107 and the second connection pipe 103 are fixedly connected and are disposed on an outer side wall of the second connection pipe 103, the buffer assembly 109 is disposed on an inner side wall of the ring 105, the heat-preserving ring 105 is fixedly connected with the first connection pipe 102 and the first connection pipe 102 by the reinforcing ring 110, the first connection pipe 105 and the first connection pipe 105 are effectively expanded by the fixing ring 105, the first connection pipe 101 and the first connection pipe 105 are effectively connected with the fixing ring 105 by the fixing ring 105, the first connection ring 105 and the first connection pipe 105 by the first connection assembly and the first connection pipe 101, in this way, the working bellows 101 is enabled to have the characteristics of heat preservation and water resistance, so that workers can conveniently install and detach the working bellows, and the workload of later maintenance workers is reduced.
Wherein the first right angle ring 112 is fixedly connected with the first connecting pipe 102 and is located on the outer side wall of the first connecting pipe 102, the second right angle ring 113 is fixedly connected with the second connecting pipe 103 and is located on the outer side wall of the second connecting pipe 103, the second right angle ring 113 is slidably matched with the first right angle ring 112, the first stop ring 114 is fixedly connected with the first right angle ring 112 and is located on the outer side wall of the first right angle ring 112, the first stop ring 114 is contacted with the second right angle ring 113, the second stop ring 115 is fixedly connected with the second right angle ring 113 and is located on the inner side wall of the second right angle ring 113, the second stop ring 115 is contacted with the first right angle ring 112, one end of the spring 116 is fixedly connected with the first stop ring 114 and is located on one side of the first stop ring 114, the other end of the spring 116 is fixedly connected with the second baffle ring 115 and is located at one side of the second baffle ring 115, the heat insulation ring 105 is provided with a sealing groove 125, the sealing groove 125 is matched with the third sealing ring 117, the third sealing ring 117 is fixedly connected with the heat insulation ring 105 and is located on the inner side wall of the sealing groove 125, the third sealing ring 117 is in contact with the second right angle ring 113, when the working corrugated pipe 101 is expanded by heating, the second right angle ring 113 can slide in the heat insulation ring 105 due to the expansion of the working corrugated pipe, at this time, the spring 116 is compressed by the first baffle ring 114 and the second baffle ring 115, the tightness of the heat insulation ring 105 is further improved by the third sealing ring 117, the spring 116 is prevented from being corroded, and the service life of the spring 116 is prolonged.
Secondly, the outer ring 118 is fixedly connected with the first connecting pipe 102 and is located on an outer side wall of the first connecting pipe 102, one end of the reinforcing rib 119 is fixedly connected with the outer ring 118 and is located on an outer side wall of the outer ring 118, the other end of the reinforcing rib 119 is fixedly connected with the fixed ring 104 and is located on an outer side wall of the fixed ring 104, and the reinforcing rib 119 on the outer ring 118 can improve connectivity between the fixed ring 104 and the first connecting pipe 102, share pressure born on the fixed ring 104 and reduce occurrence of root fracture conditions.
Meanwhile, the first flange 120 is fixedly connected with the first connecting pipe 102 and is located on the outer side wall of the first connecting pipe 102, the second bolt 122 sequentially penetrates through the first flange 120 and the working corrugated pipe 101, the second flange 121 is fixedly connected with the second connecting pipe 103 and is located on the outer side wall of the second connecting pipe 103, the third bolt 123 sequentially penetrates through the second flange 121 and the working corrugated pipe 101, the second bolt 122 is used for connecting the working corrugated pipe 101 and the first flange 120, and the third bolt 123 is used for connecting the working corrugated pipe 101 and the second flange 121, so that the working personnel can conveniently install and detach the working corrugated pipe.
When the heat-insulating waterproof fully-buried expansion joint is used, the second bolt 122 is used for connecting the working bellows 101 and the first flange 120, the third bolt 123 is used for connecting the working bellows 101 and the second flange 121, the first bolt 108 is used for fixing the heat-insulating ring 105 to one side of the fixed ring 104, the first sealing ring 106 and the second sealing ring 107 are used for sealing the heat-insulating ring 105, the reinforcing rib 119 on the outer ring 118 can improve the connectivity between the fixed ring 104 and the first connecting pipe 102, the pressure born by the fixed ring 104 is shared, the occurrence of root fracture condition is reduced, the heat-insulating ring 105 plays a role in heat insulation, when the working bellows 101 is heated and expanded, the second right-angle ring 113 can slide in the heat-insulating ring 105 due to the self-expansion property, the spring 116 at the moment is compressed by the first blocking ring 114 and the second blocking ring 115, the third sealing ring 105 is further improved, the sealing property of the spring 116 is prevented from being further improved, the heat-insulating ring 116 is prevented from being corroded by the sealing ring 117, the heat-insulating ring 116 is prevented from being detached by workers, the heat-insulating ring 116 has the heat-insulating property, the heat-insulating property is reduced, and the life of the working bellows is convenient to detach and the heat-insulating ring is convenient for workers.
Second embodiment:
on the basis of the first embodiment, please refer to fig. 5 and 6, wherein fig. 5 is a schematic overall structure of the second embodiment of the present utility model, and fig. 6 is a front overall view of the second embodiment of the present utility model.
The utility model provides a thermal-insulation waterproof fully-buried expansion joint, which also comprises a fixing assembly 201, wherein the fixing assembly 201 comprises a supporting frame 202 and a mounting plate 203.
For this embodiment, the fixing component 201 is disposed on the outer side wall of the heat insulation ring 105, and the fixing component 201 is added to facilitate the support of the heat insulation ring 105 by a worker, reduce the pressure born between the pipes, and improve the convenience of the heat insulation ring 105.
The support frame 202 is fixedly connected with the heat-insulating ring 105 and is located on the outer side wall of the heat-insulating ring 105, the mounting plate 203 is fixedly connected with the support frame 202 and is located below the support frame 202, and the support frame 202 above the mounting plate 203 is fixed at a buried pipe by using screws, so that a worker can conveniently support the heat-insulating ring 105, pressure born between pipelines is reduced, and convenience of the heat-insulating ring 105 is improved.
When the heat-insulating waterproof fully-buried expansion joint is used, the support frame 202 above the mounting plate 203 is fixed at a buried pipe by using screws, so that workers can conveniently support the heat-insulating ring 105, the pressure born between pipelines is reduced, and the convenience of the heat-insulating ring 105 is improved.
The foregoing disclosure is only illustrative of one or more preferred embodiments of the present application, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the application.