CN107084294B - Non-metallic expansion joint for low temperature environment - Google Patents
Non-metallic expansion joint for low temperature environment Download PDFInfo
- Publication number
- CN107084294B CN107084294B CN201710461051.8A CN201710461051A CN107084294B CN 107084294 B CN107084294 B CN 107084294B CN 201710461051 A CN201710461051 A CN 201710461051A CN 107084294 B CN107084294 B CN 107084294B
- Authority
- CN
- China
- Prior art keywords
- layer
- rubber layer
- expansion joint
- oil absorption
- hose
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/024—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube non-metallic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a non-metal expansion joint for a low-temperature environment, which comprises a hose and two connectors, wherein a plurality of limiting screw rods are connected between the connectors, the connectors are respectively connected with a flange, the pipe wall of the hose is of a multilayer structure, a spiral inner cavity is arranged in an oil absorption rubber layer, refrigeration oil is filled in the spiral inner cavity, a first stainless steel wire mesh layer is arranged on the outer side of the oil absorption rubber layer, a second stainless steel wire mesh layer is arranged on the inner side of the oil absorption rubber layer, a fluororubber layer is arranged on the inner side of the second stainless steel wire mesh layer, and a heat insulation layer is arranged on the outer side of the first. The nonmetal expansion joint for the low-temperature environment can be used for a long time in the environment of lowest temperature of 55 ℃ below zero, the frozen oil in the oil absorption rubber layer of the nonmetal expansion joint can keep the elasticity of the hose in the low-temperature environment without becoming brittle, the frozen oil absorbed in the oil absorption rubber layer is fuller, and the frozen oil has the function of nourishing the hose in the low-temperature environment, so that the service life of the nonmetal expansion joint is effectively prolonged.
Description
Technical Field
The invention relates to an expansion joint, in particular to a non-metal expansion joint used in a low-temperature environment.
Background
The non-metal expansion joint is also called non-metal compensator and fabric compensator, and belongs to one kind of compensator. The material is mainly fiber fabric, rubber material and the like, and can compensate the vibration of the running of the fan and the air pipe and the deformation of the pipeline. Non-metallic expansion joints are sometimes required to be used in low temperature environments, such as in northern areas with cold climates, such as in cold stores. As the nonmetal expansion joint is mainly made of fabric and rubber materials, the material texture becomes brittle in a low-temperature environment, the expansion joint is easy to damage and crack due to expansion and contraction, and the service life of the nonmetal expansion joint is short.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art, and provides the non-metal expansion joint for the low-temperature environment.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a nonmetal expansion joint for low temperature environment, contains a hose, and a first connector and a second connector are connected respectively to the both ends of hose, connects many stop screw between first connector and second connector, is equipped with a first flange on the first connector, is equipped with a second flange on the second connector, the pipe wall of hose is multilayer structure, contains the oil absorption rubber layer, and the oil absorption rubber inslot is equipped with the spiral inner chamber, and the spiral inner chamber intussuseption is filled with the refrigeration oil, the outside on oil absorption rubber layer is equipped with a first stainless steel wire net layer, the inboard on oil absorption rubber layer is equipped with a second stainless steel wire net layer, and the inboard on second stainless steel wire net layer is equipped with a fluorine rubber layer, and the outside on first stainless steel wire net layer is equipped with a heat preservation.
As a preferred embodiment of the invention, a polyethylene film is respectively arranged between the oil absorption rubber layer and the first stainless steel wire mesh layer and between the oil absorption rubber layer and the second stainless steel wire mesh layer.
In a preferred embodiment of the present invention, the thickness ratio of the insulating layer to the fluororubber layer is 5: 2.
the nonmetal expansion joint for the low-temperature environment can be used for a long time in the environment of lowest temperature of 55 ℃ below zero, the frozen oil in the oil absorption rubber layer of the nonmetal expansion joint can keep the elasticity of the hose in the low-temperature environment without becoming brittle, the frozen oil absorbed in the oil absorption rubber layer is fuller, and the frozen oil has the function of nourishing the hose in the low-temperature environment, so that the service life of the nonmetal expansion joint is effectively prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a non-metallic expansion joint for use in low temperature environments in accordance with the present invention;
fig. 2 is a schematic view of the layered structure of the hose of fig. 1.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1 and 2, a nonmetal expansion joint 1 for low temperature environment comprises a hose 10, a first connector 20 and a second connector 30 are respectively connected to two ends of the hose 10, a plurality of limiting screws 40 are connected between the first connector 20 and the second connector 30, a first flange 21 is arranged on the first connector 20, a second flange 31 is arranged on the second connector 30, the pipe wall of the hose 10 is of a multilayer structure and comprises an oil absorption rubber layer 11, a spiral inner cavity 12 is arranged in the oil absorption rubber layer 11, refrigeration oil is filled in the spiral inner cavity 12, a first stainless steel wire mesh layer 13 is arranged on the outer side of the oil absorption rubber layer 11, a second stainless steel wire mesh layer 14 is arranged on the inner side of the oil absorption rubber layer 11, a fluorine rubber layer 16 is arranged on the inner side of the second stainless steel wire mesh layer 14, and a heat insulation layer 15 is arranged on the outer side of the first stainless steel wire mesh layer 13.
As a further improvement of the invention, a polyethylene film is respectively arranged between the oil absorption rubber layer 11 and the first stainless steel mesh layer 13 and the second stainless steel mesh layer 14.
As a further improvement of the invention, the thickness ratio of the heat-insulating layer 15 to the fluororubber layer 16 is 5: 2.
the nonmetal expansion joint for the low-temperature environment can be used for a long time in the environment of lowest temperature of 55 ℃ below zero, the frozen oil in the oil absorption rubber layer of the nonmetal expansion joint can keep the elasticity of the hose in the low-temperature environment without becoming brittle, the frozen oil absorbed in the oil absorption rubber layer is fuller, and the frozen oil has the function of nourishing the hose in the low-temperature environment, so that the service life of the nonmetal expansion joint is effectively prolonged.
The design concept of the present invention is described above with only one embodiment, and the present invention can be expanded to connect more function modules externally at the same time when the system allows, thereby expanding the functions of the present invention to the maximum.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (1)
1. A nonmetal expansion joint (1) for a low-temperature environment is characterized by comprising a hose (10), wherein a first connector (20) and a second connector (30) are respectively connected to two ends of the hose (10), a plurality of limiting screws (40) are connected between the first connector (20) and the second connector (30), a first flange (21) is arranged on the first connector (20), a second flange (31) is arranged on the second connector (30), the pipe wall of the hose (10) is of a multilayer structure and comprises an oil absorption rubber layer (11), a spiral inner cavity (12) is arranged in the oil absorption rubber layer (11), freezing oil is filled in the spiral inner cavity (12), a first stainless steel wire mesh layer (13) is arranged on the outer side of the oil absorption rubber layer (11), a second stainless steel wire mesh layer (14) is arranged on the inner side of the oil absorption rubber layer (11), a fluorine rubber layer (16) is arranged on the inner side of the second stainless steel wire mesh layer (14), the outside of first stainless steel wire net layer (13) is equipped with a heat preservation (15), heat preservation (15) and fluororubber layer (16) the thickness ratio be 5: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710461051.8A CN107084294B (en) | 2017-06-18 | 2017-06-18 | Non-metallic expansion joint for low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710461051.8A CN107084294B (en) | 2017-06-18 | 2017-06-18 | Non-metallic expansion joint for low temperature environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107084294A CN107084294A (en) | 2017-08-22 |
| CN107084294B true CN107084294B (en) | 2020-04-14 |
Family
ID=59607246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710461051.8A Active CN107084294B (en) | 2017-06-18 | 2017-06-18 | Non-metallic expansion joint for low temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084294B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118238A1 (en) * | 1981-05-08 | 1982-11-25 | Hochtemperatur-Reaktorbau GmbH, 5000 Köln | Pipe compensator for pipelines with hot media |
| CN2095141U (en) * | 1991-05-17 | 1992-02-05 | 沈阳市胶管厂劳动服务公司 | Rubber damping throat for diesel loclmotive |
| CN2212120Y (en) * | 1994-12-21 | 1995-11-08 | 叶永坤 | Fluorine plastic composite compensator |
| CN105229356A (en) * | 2013-05-21 | 2016-01-06 | 株式会社普利司通 | Flexible pipe rubber composition and flexible pipe |
| CN207064943U (en) * | 2017-06-18 | 2018-03-02 | 江苏长风波纹管有限公司 | Non-metal expansion joint for low temperature environment |
-
2017
- 2017-06-18 CN CN201710461051.8A patent/CN107084294B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118238A1 (en) * | 1981-05-08 | 1982-11-25 | Hochtemperatur-Reaktorbau GmbH, 5000 Köln | Pipe compensator for pipelines with hot media |
| CN2095141U (en) * | 1991-05-17 | 1992-02-05 | 沈阳市胶管厂劳动服务公司 | Rubber damping throat for diesel loclmotive |
| CN2212120Y (en) * | 1994-12-21 | 1995-11-08 | 叶永坤 | Fluorine plastic composite compensator |
| CN105229356A (en) * | 2013-05-21 | 2016-01-06 | 株式会社普利司通 | Flexible pipe rubber composition and flexible pipe |
| CN207064943U (en) * | 2017-06-18 | 2018-03-02 | 江苏长风波纹管有限公司 | Non-metal expansion joint for low temperature environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107084294A (en) | 2017-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201599492U (en) | Through-wall structure of low-temperature cold box pipeline | |
| CN107084294B (en) | Non-metallic expansion joint for low temperature environment | |
| CN207279146U (en) | A kind of prefabricated direct-buried heat insulation pipe | |
| CN202812506U (en) | Double-wall corrugated pipe | |
| CN203068043U (en) | Telescopic corrugated pipe joint | |
| CN203517141U (en) | Medium pressure net cover fluoroplastic composite compensator | |
| CN206221824U (en) | Multiple tube with heat insulation function | |
| CN105351638A (en) | Bendable thermal insulation pipe with soft polyethylene outer protecting pipe and bending method | |
| CN207064943U (en) | Non-metal expansion joint for low temperature environment | |
| CN210088270U (en) | Anti-cracking composite honeycomb metal pipe | |
| CN210266417U (en) | Air conditioner heat preservation connecting pipe | |
| CN204114441U (en) | Cryogenic piping ectomesoderm pipeline vacuum expansion saves | |
| CN207966556U (en) | A kind of low temperature resistant control cable | |
| CN207648349U (en) | A kind of central air-conditioning insulating tube | |
| CN206290850U (en) | Reducing corrugated connecting tube | |
| CN207005472U (en) | A kind of frost-cracking-preventing PE water pipes | |
| CN211118293U (en) | Heat supply pipeline applied to heat energy factory | |
| CN220957212U (en) | Metal collapsible tube and cold-resistant structure that freezes | |
| CN205063060U (en) | Building outer wall exhaust equipment | |
| CN203550262U (en) | Energy-saving structure | |
| CN212407990U (en) | Heat insulation structure for high-low temperature composite equipment and high-low temperature composite equipment | |
| CN210716362U (en) | Low-temperature-resistant high-pressure steel wire rubber hose | |
| CN217977983U (en) | Novel high temperature pipeline heat preservation composite construction | |
| CN213871493U (en) | PE pipe with high pressure bearing and corrosion resistance | |
| CN207112226U (en) | A kind of New hot oil line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |