CN203892733U - Helical weld pipe in stainless steel structure - Google Patents
Helical weld pipe in stainless steel structure Download PDFInfo
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- CN203892733U CN203892733U CN201420268752.1U CN201420268752U CN203892733U CN 203892733 U CN203892733 U CN 203892733U CN 201420268752 U CN201420268752 U CN 201420268752U CN 203892733 U CN203892733 U CN 203892733U
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- stainless steel
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- stiffening rib
- reinforcing rib
- helical
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Abstract
The utility model discloses a helical weld pipe in a stainless steel structure. A pipe body of the helical weld pipe is formed by continuously helically twisting a stainless steel band before abutting joint, a seam formed by abutting joint is helical, a reinforcing rib in a helical structure is arranged outside the pipe body and corresponds to the seam in position, and the helical length of the reinforcing rib is equal to that of the seam; two sides of the reinforcing rib are flanging sides, one of the flanging sides is fixedly welded to pipe body outer walls on two sides of the seam, and the other flanging side is fixedly welded to the pipe body outer wall on one side of the seam. The reinforcing rib and the pipe body are two stainless steel parts and are separately manufactured in production and then assembled together by welding, and accordingly the defect of inconvenience in production due to the fact that bending is required for forming of the reinforcing rib of a carbon steel reinforced helical weld pipe in the stainless steel structure can be overcome; the pipe body can be made thinner on the premise that ring stiffness is guaranteed by the reinforcing rib, and consequently weight reduction is realized while combustion prevention is achieved.
Description
Technical field
The utility model belongs to mining pipeline field, specifically, relates to a kind of stainless steel structure spiral welded pipe.
Background technique
Spiral welded pipe is a kind of important mining pipeline, and it is mainly used at mine down-hole suction gas, and the important technology of spiral welded pipe to require be that ring stiffness is high and completely can be fire-retardant.Existing spiral welded pipe is straight tube, and by being welded after sheet material distortion.Existing spiral welded pipe is made up of carbon steel, in order to ensure enough ring stiffness, the thickness of this carbon steel spiral welded pipe does thicklyer, be generally 10mm left and right, so just cause its weight heavier, not only manufacture cost is high, and transport, install very inconvenient, particularly in the mine laneway of narrow space.
Another kind of made by the high plastics of fire-retardant coefficient, because plastics are very light, so just can under guarantee enough encircles the prerequisite of stiffness, alleviate the weight of pipeline, thereby greatly facilitate transport and the installation of pipeline; But plastics have very high fire-retardant coefficient and do not represent that it can not burn completely, some in particular cases plastics still can burn, so just bring serious potential safety hazard.
Chinese patent ZL201320079613.X discloses a kind of carbon steel on July 31st, 2013 and has strengthened stainless steel structure spiral welded pipe, this spiral welded pipe comprises rectilinear body, this body is made up of one group of coaxial pipeline section, and on body, form a spiral weld after the relative position welding of adjacent two pipeline sections, the center line of this spiral weld overlaps with the center line of body, it is characterized in that: described body is made up of stainless steel, on the outer wall of body, be provided with a spirality convex rib, the center line of this spirality convex rib overlaps with the center line of body.The relative position of adjacent two pipeline sections is connected by overlap joint welding resistance, and on the inwall of body, forms a spiral weld after welding; Spirality convex rib is positioned at spiral weld the right, the cross section of spirality convex rib is circular arc, the left end of this circular arc is structure as a whole with the lap segment of corresponding pipeline section right part, and the right-hand member of circular arc is provided with in-flanges, and this in-flanges is close to a pipeline section outer wall with the welding of corresponding pipeline section right part.Body is provided with a spirality stiffening rib outward, and the center line of this spirality stiffening rib overlaps with the center line of body; Spirality stiffening rib is located in spirality convex rib simultaneously, and the cross section of spirality stiffening rib is circular arc, the outer wall of this circular arc and the inwall of spirality convex rib are close to, and one end of circular arc and the outer wall of body be close to, and the in-flanges of its other end and spirality convex rib is close to.
Strengthen in the process of stainless steel structure spiral welded pipe at the above-mentioned carbon steel of production, we find by being bent to form after spirality convex rib, and the bending place of body can deform, and so not only can affect structural strength, prior being not easy to manufactured, and is badly in need of solving above-mentioned technical barrier for this reason.
Model utility content
Technical problem to be solved in the utility model be to provide a kind of intensity high, lightweight, do not burn, and stainless steel structure spiral welded pipe convenient for production.
The technical solution of the utility model is as follows: a kind of stainless steel structure spiral welded pipe, the body (1) of this spiral welded pipe is docked after by the continuous distortion of spirality and is formed by a Stainless Steel Band, the seam (1a) that docking forms twist, the shaft axis of its shaft axis and described body (1) is on same straight line, it is characterized in that: described body (1) outside is provided with a stainless stiffening rib (2), this stiffening rib is helical structure, its shaft axis and body (1) shaft axis is on same straight line, and the position of stiffening rib (2) is corresponding with described seam (1a), its helix length equates with the helix length of this seam,
The both sides of described stiffening rib (2) are a flanging (2a), wherein a flanging (2a) is fitted and is welded and fixed with body (1) outer wall of described seam (1a) both sides simultaneously, and another flanging (2a) is fitted and is welded and fixed with the tube wall of described seam (1a) side.
Adopt above structure, described stiffening rib (2) can be strengthened structural strength, play again link, and the body (1) of seam (1a) both sides is connected into an entirety, so just can under the prerequisite that ensures ring stiffness, body (1) be done thinlyyer, thereby reduction weight, and body (1) and stiffening rib (2) all adopt stainless steel, so just can not burn.Simultaneously, because body (1) and stiffening rib (2) are two parts, when manufacture, can first manufacture respectively, again by welding assembly together, thereby reduce production difficulty, be convenient to manufacture, and then overcome well background technique middle-carbon steel and strengthen stainless steel structure spiral welded pipe and produce inconvenient defect, and of the present utility model simple in structure, with low cost, be suitable for extensively promoting the use.
Adopt above technological scheme, stiffening rib of the present utility model (2) is two stainless steel parts with body (1), when production, first manufacture respectively, again by welding assembly together, so just can overcome background technique middle-carbon steel enhancing stainless steel structure spiral welded pipe and produce inconvenient defect, and stiffening rib (2) can be strengthened structural strength, so just can under the prerequisite that ensures ring stiffness, body (1) be done thinlyyer, thereby reduction weight, and body (1) and stiffening rib (2) all adopt stainless steel, so just can not burn, and of the present utility model simple in structure, with low cost, be suitable for extensively promoting the use.
In order to strengthen structural strength, and take into account attractive in appearancely, special the cross section of described stiffening rib (2) is designed to " Ω " font.Certainly, in actual manufacture process, also can select stiffening rib (2) stiffening rib (2) of other cross-sectional form, be not limited to " Ω " font structure described in the present embodiment.
For the ease of manufacturing, and improve work efficiency, two flangings (2a) of described stiffening rib (2) adopt the mode of resistance welding to be welded and fixed with body (1) simultaneously, and adopt the mode being simultaneously welded and fixed also can improve the conformity of product, and then ensure the welding quality of product.
Beneficial effect: stiffening rib of the present utility model (2) is two stainless steel parts with body (1), when production, first manufacture respectively, again by welding assembly together, so just can overcome background technique middle-carbon steel and strengthen stainless steel structure spiral welded pipe because need to cause producing inconvenient defect by being bent to form stiffening rib (2), and stiffening rib (2) can be strengthened structural strength, so just can under the prerequisite that ensures ring stiffness, body (1) be done thinlyyer, thereby reduction weight, and body (1) and stiffening rib (2) all adopt stainless steel, so just can not burn, and of the present utility model simple in structure, with low cost, it is firm to weld, quality is reliably guaranteed, be suitable for extensively promoting the use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cross section view of Fig. 1.
Fig. 3 is the enlarged diagram of A part in Fig. 2.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Fig. 1,2 and 3, a kind of stainless steel structure spiral welded pipe, this stainless steel structure spiral welded pipe is made up of body 1 and stiffening rib 2.Wherein, described body 1 is docked after by the continuous distortion of spirality and is formed by a Stainless Steel Band, and twist, the shaft axis of its shaft axis and described body 1 is on same straight line for the seam 1a that docking forms.It should be noted that, if the length of corrosion resistant plate is inadequate in production process, need to extend by the mode of fishplate bar the length of corrosion resistant plate, two corrosion resistant plates that are connected together are still regarded a corrosion resistant plate as.
Described body 1 outside is provided with a stainless stiffening rib 2, and this stiffening rib 2 is helical structure, and its shaft axis and body 1 shaft axis are on same straight line.And the position of described stiffening rib 2 is corresponding with seam 1a, its helix length equates with the helix length of this seam.The both sides of described stiffening rib 2 are a flanging 2a, and wherein a flanging 2a fits and is welded and fixed with body 1 outer wall of described seam 1a both sides simultaneously, and the tube wall of another flanging 2a and described seam 1a mono-side is fitted and is welded and fixed.
As preferably, the cross section of described stiffening rib 2 is preferably " Ω " font in this case, also can be according to the cross section of selecting other structural types in certainly also can actual manufacture process, and as " π " font etc.In addition, two of described stiffening rib 2 flanging 2a adopt the mode of resistance welding to be welded and fixed with body 1 simultaneously.
The foregoing is only preferred embodiment of the present utility model; not taking the utility model as restriction; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a stainless steel structure spiral welded pipe, the body (1) of this spiral welded pipe is docked after by the continuous distortion of spirality and is formed by a Stainless Steel Band, the seam (1a) that docking forms twist, the shaft axis of its shaft axis and described body (1) is on same straight line, it is characterized in that: described body (1) outside is provided with a stainless stiffening rib (2), this stiffening rib is helical structure, its shaft axis and body (1) shaft axis is on same straight line, and the position of stiffening rib (2) is corresponding with described seam (1a), its helix length equates with the helix length of this seam,
The both sides of described stiffening rib (2) are a flanging (2a), wherein a flanging (2a) is fitted and is welded and fixed with body (1) outer wall of described seam (1a) both sides simultaneously, and another flanging (2a) is fitted and is welded and fixed with the tube wall of described seam (1a) side.
2. stainless steel structure spiral welded pipe according to claim 1, is characterized in that: the cross section of described stiffening rib (2) is " Ω " font.
3. stainless steel structure spiral welded pipe according to claim 1 and 2, is characterized in that: two flangings (2a) of described stiffening rib (2) adopt the mode of resistance welding to be welded and fixed with body (1) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268752.1U CN203892733U (en) | 2014-05-23 | 2014-05-23 | Helical weld pipe in stainless steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268752.1U CN203892733U (en) | 2014-05-23 | 2014-05-23 | Helical weld pipe in stainless steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892733U true CN203892733U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268752.1U Expired - Fee Related CN203892733U (en) | 2014-05-23 | 2014-05-23 | Helical weld pipe in stainless steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892733U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759485A (en) * | 2015-01-31 | 2015-07-08 | 湖南双马新材料科技有限公司 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
| WO2016101298A1 (en) * | 2014-12-24 | 2016-06-30 | 南京联众建设工程技术有限公司 | A large-diameter metal-lined spiral welded steel pipe and manufacturing method thereof |
| CN106764110A (en) * | 2017-03-08 | 2017-05-31 | 大庆新管科技有限公司 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method |
-
2014
- 2014-05-23 CN CN201420268752.1U patent/CN203892733U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101298A1 (en) * | 2014-12-24 | 2016-06-30 | 南京联众建设工程技术有限公司 | A large-diameter metal-lined spiral welded steel pipe and manufacturing method thereof |
| US10145502B2 (en) | 2014-12-24 | 2018-12-04 | Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | Large-aperture spiral welded steel pipe with metal linings and manufacturing method thereof |
| AU2014405684B2 (en) * | 2014-12-24 | 2020-09-24 | Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | Large-aperture spiral welded steel pipe with metal linings and manufacturing method thereof |
| CN104759485A (en) * | 2015-01-31 | 2015-07-08 | 湖南双马新材料科技有限公司 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
| CN106764110A (en) * | 2017-03-08 | 2017-05-31 | 大庆新管科技有限公司 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Qingyang holding (Group) Co., Ltd. Assignor: Li Changcheng Contract record no.: 2016500000018 Denomination of utility model: Forming device of stainless steel structure spiral welding pipe Granted publication date: 20141022 License type: Exclusive License Record date: 20160805 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190523 |