CN203099128U - Anti-explosion composite stainless steel corrugated pipe - Google Patents
Anti-explosion composite stainless steel corrugated pipe Download PDFInfo
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- CN203099128U CN203099128U CN 201320116339 CN201320116339U CN203099128U CN 203099128 U CN203099128 U CN 203099128U CN 201320116339 CN201320116339 CN 201320116339 CN 201320116339 U CN201320116339 U CN 201320116339U CN 203099128 U CN203099128 U CN 203099128U
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- pipe
- stainless steel
- deformation
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- stress
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Abstract
The utility model provides an anti-explosion composite stainless steel corrugated pipe which comprises an inner pipe (1), a hoop layer (2), a plastic outer layer (3), a connecting screw nut (4), a seal ring (5) and a gasket (6). The utility model adopts the structure that the hoop layer formed by stainless steel weave nets is arranged outside the inner pipe formed by a stainless steel corrugated pipe; the hoop layer is coated with the plastic outer layer formed by inflaming retarding polyvinyl outside; by taking advantage of sliding change characteristic of the constant-circumference mesh of the hoop layer, sharp bending and non-circular deformation trend generated by the inner pipe can be prevented by a hoop inner pipe; by utilizing two cross geometric deformation structures to distract the deformation stress, deformation stress concentration caused by non-circular deformation can be avoided and hidden danger caused by stress erosion and leakage can be eliminated; as the gasket made of polytetrafluoroethylene is arranged at the combination part of the pipe neck and the connecting screw nut, spark can be avoided during disassembling and assembling. Therefore, a gas transition connecting hose pipe achieves the purposes of stress erosion elimination and spark explosion prevention.
Description
Technical field
The utility model relates to the combustion gas transition and connects flexible pipe, specifically is meant to be used for carrying out a kind of explosion-proof composite stainless steel bellows that transition is connected between gas pipeline hard tube and hard tube or hard tube and the Gas appliance.
Background technique
The combustion gas transition connects flexible pipe be the hard tube that is used for gas pipeline with hard tube or hard tube and Gas appliance between carry out the flexible pipe that transition is connected, the combustion gas transition connection flexible pipe employing plastic hose or the individual layer corrugated stainless steel tubing of prior art; Wherein, there is the phenomenon of natural aging in plastic hose, and the safe life suggestion is 1 year, and because user's kitchen environment makes the rubber pipe surface adsorption that grease be arranged, is subject to the damage of baiting of mouse, cockroach, therefore aging the leakage very easily takes place cause combustion gas poisoning and fire; When the individual layer corrugated stainless steel tubing is installed at the sharp turn of meeting the minor radius bending, circular tube wall very easily produces the deformational stress concentration phenomenon of non-circular property deformation, deformational stress is concentrated and can be brought out tube wall stress corrosion leakage, the suggestion in working life of individual layer corrugated stainless steel tubing is 10 years, but because most users can not in time change, the potential safety hazard that combustion gas is revealed takes place in same the existence; In addition, the neck of individual layer corrugated stainless steel tubing is that steel/steel contacts with the connecting part of nut, may produce the dismounting spark, the dismounting operation is if meet the environment of combustion gas flash-point concentration, gas explosion very easily takes place, therefore, there are the problems and shortcomings of aging leakage, stress corrosion leakage, spark knock in prior art.
Summary of the invention
Problems and shortcomings at above-mentioned prior art existence, the utility model employing is provided with the anchor ear layer that one deck is made of the stainless steel mesh grid in the outside of the interior pipe that is made of corrugated stainless steel tubing, outside at the anchor ear layer coats the plastic cement skin that one deck is made of flame-proof polyethylene PE, utilize the sliding characteristic that becomes of anchor ear layer constant circumference mesh, the non-circle in pipe generation sharp turn became to becoming in the interior pipe of banding stoped, utilize the geometry deformation structure of two kinds of intersections to disperse deformational stress, thereby avoid non-circular property deformation to cause deformational stress to be concentrated, the hidden danger that the corrosion that eliminates stress is revealed; The packing ring that the teflon material is set in neck and attaching nut's connecting part avoids dismounting to produce the technological scheme of spark, a kind of explosion-proof composite stainless steel bellows is provided, is intended to make the combustion gas transition to connect the purpose that flexible pipe reaches the corrosion hidden danger that eliminates stress, avoids spark knock.
The purpose of this utility model is achieved in that a kind of explosion-proof composite stainless steel bellows, comprises interior pipe, anchor ear layer, plastic cement skin, attaching nut, seal ring, packing ring, and wherein: pipe is stainless steel thin-wall corrugated tube in described; The anchor ear layer that outside lock ring one deck of interior pipe is made of the stainless steel mesh grid, the outside of described anchor ear layer coats the plastic cement skin that one deck is made of flame-proof polyethylene PE; Two ends of interior pipe are provided with the copper attaching nut who is used for being connected with pipeline purposes, in the tube neck liner that combines with described attaching nut of pipe the packing ring of teflon material is arranged, also be provided with the seal ring of the silicone rubber material that is used for being connected purposes among the attaching nut with line seal.
Working principle and beneficial effect
Since the anchor ear layer be netted and lock ring at the outer wall of interior pipe, when the non-circle of interior pipe chance sharp turn installation generation becomes to becoming, the layering slippage takes place between the outer wall of anchor ear layer and interior pipe, the girth of anchor ear layer circular cross-section is invariable, but deformation can take place in the shape of a mesh of anchor ear layer, at this moment, the mesh distortion that is positioned at crooked crook is dwindled, and the mesh distortion that is positioned at crooked outer crook is amplified, based on equal sectional area, circular girth is less than the principle of other any geometrical shape girths, and the trend of the inflexed two side bulging deformations of tube wall of pipe made interior pipe avoid deformational stress to concentrate in the constant circular perimeter of anchor ear layer stoped; Its principle is similar to cylindrical screw tube chamber shape spring tube bending device, and the spring tube bending device comes crooked copper pipe by the deformation of the circular cross-section of banding restriction copper pipe, and the prevention copper pipe flat pipe takes place in interior crook, the phenomenon of protruding deformation takes place in interior two curved sides; In addition, the setting of packing ring and copper attaching nut's setting make the possibility of having eliminated dismounting generation spark between interior pipe and the attaching nut.
This device utilizes anchor ear layer constant circumference mesh to slide the characteristic that becomes, and makes interior pipe stop the non-circle in interior pipe generation sharp turn to become to becoming, thereby eliminates because of the concentrated hidden danger that causes stress corrosion to be revealed of deformational stress; By packing ring is set, eliminated the possibility of dismounting generation spark simultaneously.
Above-mentioned, the utility model employing is provided with the anchor ear layer that one deck is made of the stainless steel mesh grid in the outside of the interior pipe that is made of corrugated stainless steel tubing, outside at the anchor ear layer coats the plastic cement skin that one deck is made of flame-proof polyethylene PE, utilize the sliding characteristic that becomes of anchor ear layer constant circumference mesh, the non-circle in pipe generation sharp turn became to becoming in the interior pipe of banding stoped, utilize the geometry deformation structure of two kinds of intersections to disperse deformational stress, thereby avoid non-circular property deformation to cause deformational stress to be concentrated, the hidden danger that the corrosion that eliminates stress is revealed; The packing ring that the teflon material is set in neck and attaching nut's connecting part avoids dismounting to produce the technological scheme of spark, the problems and shortcomings that prior art exists aging leakage, stress corrosion leakage, spark knock have been overcome, a kind of explosion-proof composite stainless steel bellows that is provided makes the combustion gas transition connect the purpose that flexible pipe has reached the corrosion hidden danger that eliminates stress, avoided spark knock.
Description of drawings
Fig. 1 is the structural representation of a kind of explosion-proof composite stainless steel bellows of the present utility model.
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.
Among the figure: interior pipe 1, anchor ear layer 2, plastic cement skin 3, attaching nut 4, seal ring 5, packing ring 6.
Embodiment
Consult Fig. 1, a kind of explosion-proof composite stainless steel bellows of the present utility model, pipe 1, anchor ear layer 2, plastic cement skin 3, attaching nut 4, seal ring 5, packing ring 6 in comprising, wherein: pipe 1 is stainless steel thin-wall corrugated tube in described; The anchor ear layer 2 that outside lock ring one deck of interior pipe 1 is made of the stainless steel mesh grid, the outside of described anchor ear layer 2 coats the plastic cement skin 3 that one deck is made of flame-proof polyethylene PE; Two ends of interior pipe 1 are provided with copper being used for is connected purposes with pipeline attaching nut 4, in the pipe 1 tube neck liner that combines with described attaching nut 4 packing ring 6 of teflon material is arranged, also be provided with the seal ring 5 of the silicone rubber material that is used for being connected purposes among the attaching nut 4 with line seal.
Working principle and beneficial effect
Since anchor ear layer 2 be netted and lock ring at the outer wall of interior pipe 1, when the interior pipe 1 chance sharp turn non-circle of installation generation becomes to becoming, the layering slippage takes place between the outer wall of anchor ear layer 2 and interior pipe 1, the girth of anchor ear layer 2 circular cross-section is invariable, but deformation can take place in the shape of a mesh of anchor ear layer 2, at this moment, the mesh distortion that is positioned at crooked crook is dwindled, and the mesh distortion that is positioned at crooked outer crook is amplified, based on equal sectional area, circular girth is less than the principle of other any geometrical shape girths, and the trend of the inflexed two side bulging deformations of tube wall of pipe 1 made interior pipe 1 avoid deformational stress to concentrate in anchor ear layer 2 constant circular perimeter stoped; Its principle is similar to cylindrical screw tube chamber shape spring tube bending device, and the spring tube bending device comes crooked copper pipe by the deformation of the circular cross-section of banding restriction copper pipe, and the prevention copper pipe flat pipe takes place in interior crook, the phenomenon of protruding deformation takes place in interior two curved sides; In addition, the setting of packing ring 6 and copper attaching nut's 4 setting makes the possibility of having eliminated dismounting generation spark between interior pipe 1 and the attaching nut 4.
This device utilizes anchor ear layer 2 constant circumference mesh to slide the characteristic that becomes, and makes interior pipe 1 stop the non-circle in interior pipe 1 generation sharp turn to become to becoming, thereby eliminates because of the concentrated hidden danger that causes stress corrosion to be revealed of deformational stress; By packing ring 6 is set, eliminated the possibility of dismounting generation spark simultaneously.
Claims (1)
1. an explosion-proof composite stainless steel bellows comprises interior pipe (1), anchor ear layer (2), plastic cement skin (3), attaching nut (4), seal ring (5), packing ring (6), it is characterized in that: pipe (1) is stainless steel thin-wall corrugated tube in described; The anchor ear layer (2) that outside lock ring one deck of interior pipe (1) is made of the stainless steel mesh grid, the outside of described anchor ear layer (2) coats the plastic cement skin (3) that one deck is made of flame-proof polyethylene; Two ends of interior pipe (1) are provided with the copper attaching nut who is used for being connected with pipeline purposes (4), in the tube neck liner that combines with described attaching nut (4) of pipe (1) packing ring (6) of teflon material is arranged, also be provided with the seal ring (5) of the silicone rubber material that is used for being connected purposes among the attaching nut (4) with line seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116339 CN203099128U (en) | 2013-02-27 | 2013-02-27 | Anti-explosion composite stainless steel corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116339 CN203099128U (en) | 2013-02-27 | 2013-02-27 | Anti-explosion composite stainless steel corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099128U true CN203099128U (en) | 2013-07-31 |
Family
ID=48850532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116339 Withdrawn - After Issue CN203099128U (en) | 2013-02-27 | 2013-02-27 | Anti-explosion composite stainless steel corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203099128U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148290A (en) * | 2013-02-27 | 2013-06-12 | 华英伦科技(宁波)有限公司 | Explosion-proof composite stainless steel bellows |
| CN103438318A (en) * | 2013-09-16 | 2013-12-11 | 海安县荣圣机械制造有限公司 | Novel seal corrugated pipe |
| CN104482343A (en) * | 2014-12-12 | 2015-04-01 | 中国建筑标准设计研究院有限公司 | Flexible connecting pipeline and construction method for using flexible connecting pipeline in base isolated buildings |
| CN106764122A (en) * | 2016-12-20 | 2017-05-31 | 成都佰思汇信科技有限责任公司 | A kind of municipal Gas Pipe |
-
2013
- 2013-02-27 CN CN 201320116339 patent/CN203099128U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148290A (en) * | 2013-02-27 | 2013-06-12 | 华英伦科技(宁波)有限公司 | Explosion-proof composite stainless steel bellows |
| CN103148290B (en) * | 2013-02-27 | 2015-05-13 | 华英伦科技(宁波)有限公司 | Explosion-proof composite stainless steel bellows |
| CN103438318A (en) * | 2013-09-16 | 2013-12-11 | 海安县荣圣机械制造有限公司 | Novel seal corrugated pipe |
| CN104482343A (en) * | 2014-12-12 | 2015-04-01 | 中国建筑标准设计研究院有限公司 | Flexible connecting pipeline and construction method for using flexible connecting pipeline in base isolated buildings |
| CN106764122A (en) * | 2016-12-20 | 2017-05-31 | 成都佰思汇信科技有限责任公司 | A kind of municipal Gas Pipe |
| CN106764122B (en) * | 2016-12-20 | 2018-12-14 | 湘潭新奥燃气发展有限公司 | A kind of municipal administration fuel gas conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant |