CN212338453U - Stainless steel lined composite steel pipe - Google Patents
Stainless steel lined composite steel pipe Download PDFInfo
- Publication number
- CN212338453U CN212338453U CN202021152780.9U CN202021152780U CN212338453U CN 212338453 U CN212338453 U CN 212338453U CN 202021152780 U CN202021152780 U CN 202021152780U CN 212338453 U CN212338453 U CN 212338453U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- layer
- stainless steel
- composite steel
- pipe body
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 239000010935 stainless steel Substances 0.000 title claims abstract description 38
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 38
- 239000010410 layer Substances 0.000 claims abstract description 70
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 28
- 239000010962 carbon steel Substances 0.000 claims abstract description 28
- 238000005260 corrosion Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 13
- 239000012790 adhesive layer Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 239000004593 Epoxy Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a compound steel pipe of inside lining stainless steel, its technical scheme main points are: the composite steel pipe comprises a composite steel pipe body, wherein flange plates are fixedly connected to the outer side surfaces of two ends of the composite steel pipe body, a plurality of threaded holes are formed in the end surface of each flange plate, the plurality of threaded holes are arranged around the circle center of each flange plate, and the plurality of composite steel pipe bodies are detachably connected with the threaded holes through bolts; an annular plate is coaxially and fixedly arranged on one end face of the composite steel pipe body, an annular groove corresponding to the annular plate is formed in the other end face of the composite steel pipe body, and a sealing ring is fixedly arranged inside the annular groove; the composite steel pipe body comprises a carbon steel layer, a stainless steel layer is fixedly arranged on the inner wall of the carbon steel layer, a corrosion-resistant layer is fixedly arranged on the inner wall of the stainless steel layer through an adhesive layer, and the outer surface of the carbon steel layer is coated with the corrosion-resistant layer; the utility model discloses a leakproofness well and corrosion resisting capability is strong.
Description
Technical Field
The utility model relates to a compound steel pipe technical field, in particular to inside lining stainless steel compound steel pipe.
Background
The composite steel pipe is a new composite pipe material, and the product uses seamless steel pipe and welded steel pipe as base pipe, and its inner wall is coated with high-adhesion, anticorrosion and food-grade sanitary polyethylene powder paint or epoxy resin paint. The water-supply galvanized internal plastic-coated composite steel pipe is an upgraded product of the traditional galvanized pipe and is prepared by adopting the processes of pretreatment, preheating, internal coating, leveling and post-treatment. The stainless steel lined composite steel pipe takes a carbon steel pipe as a base pipe and is a bimetal pipe compounded by a stainless steel lined pipe and the base pipe through a diameter shrinkage method, a cold expansion method, a deflagration method or a brazing method.
With the rapid development of society, more and more infrastructures are built, wherein large infrastructures need to be transported by using composite steel pipes, such as tap water, natural gas and petroleum, the traditional stainless steel composite steel pipes are simple in structure and poor in sealing performance of joints, and in addition, common composite steel pipes are easily corroded by acid, alkali and salt, so that the transportation effect is poor.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims at providing a compound steel pipe of inside lining stainless steel to mention the leakproofness of compound steel pipe junction of prior art not good in the solution background art, and receive the problem of the corruption of acid-base salt easily.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a stainless steel lined composite steel pipe comprises a composite steel pipe body, wherein flange plates are fixedly connected to the outer side surfaces of two ends of the composite steel pipe body, a plurality of threaded holes are formed in the end surfaces of the flange plates, the threaded holes are arranged around the circle center of the flange plates, and the composite steel pipe bodies are detachably connected with the threaded holes through bolts; an annular plate is coaxially and fixedly arranged on one end face of the composite steel pipe body, an annular groove corresponding to the annular plate is formed in the other end face of the composite steel pipe body, and a sealing ring is fixedly arranged inside the annular groove; the composite steel pipe body comprises a carbon steel layer, a stainless steel layer is fixedly arranged on the inner wall of the carbon steel layer, an anti-corrosion layer is fixedly arranged on the inner wall of the stainless steel layer through an adhesive layer, and the anti-corrosion layer is coated on the outer surface of the carbon steel layer.
Further, the depth of the annular groove is larger than the length of the annular plate, and the thickness of the annular plate is not larger than the groove width of the annular groove.
Further, the thickness of the carbon steel layer is larger than that of the stainless steel layer.
Furthermore, the sealing ring is made of water-swelling rubber.
Further, the adhesive layer is a polybutadiene adhesive.
Further, the corrosion-resistant layer is a high-density polyethylene pipe.
Furthermore, the anti-corrosion layer sequentially comprises an epoxy zinc-rich primer, an epoxy micaceous iron antirust intermediate paint and an ultra-thick slurry type epoxy asphalt anti-corrosion paint from inside to outside.
To sum up, the utility model discloses mainly have following beneficial effect:
one end face of the composite steel pipe body is provided with an annular plate, the other end face of the composite steel pipe body is provided with an annular groove, a sealing ring is arranged in the annular groove, the annular plate is clamped in the annular groove, and the sealing performance of connection between the annular plate and the annular groove is improved by the sealing ring; the composite steel pipe body comprises a carbon steel layer, a stainless steel layer is fixedly arranged on the inner wall of the carbon steel layer, an anti-corrosion layer is fixedly arranged on the inner wall of the stainless steel layer through an adhesive layer, the stainless steel layer can be prevented from being corroded by acid, alkali and salt, the outer surface of the carbon steel layer is coated with the anti-corrosion layer, and the carbon steel layer can be prevented from being corroded by rainwater, oxygen and harmful gas in the external natural environment.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the embodiment of the present invention connected to each other.
Reference numerals: 1. a composite steel pipe body; 2. a flange plate; 3. a threaded hole; 4. an annular plate; 5. an annular groove; 6. a seal ring; 7. a bolt; 101. a carbon steel layer; 102. a stainless steel layer; 103. an adhesive layer; 104. a corrosion-resistant layer; 105. and an anti-corrosion layer.
Detailed Description
In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments, and all embodiments may be used in combination with each other.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1-3, a lining stainless steel composite steel pipe comprises a composite steel pipe body 1, wherein flanges 2 are fixedly connected to the outer side surfaces of two ends of the composite steel pipe body 1, the flanges 2 can increase the contact area of the joints between the composite steel pipe bodies 1, a plurality of threaded holes 3 are formed in the end surface of each flange 2, the plurality of threaded holes 3 are arranged around the center of the flange 2, and the plurality of composite steel pipe bodies 1 are detachably connected with the threaded holes 3 through bolts 7, so that the composite steel pipe body 1 is convenient to detach and transport; an annular plate 4 is coaxially and fixedly arranged on one end face of the composite steel pipe body 1, an annular groove 5 corresponding to the annular plate 4 is formed in the other end face of the composite steel pipe body 1, the annular plate 4 is clamped inside the annular groove 5, the stability and the tightness of connection between the composite steel pipe bodies 1 are improved, a sealing ring 6 is fixedly arranged inside the annular groove 5, and the tightness of connection between the composite steel pipe bodies 1 is further improved; the composite steel pipe body 1 comprises a carbon steel layer 101, a stainless steel layer 102 is fixedly arranged on the inner wall of the carbon steel layer 101, an anti-corrosion layer 104 is fixedly arranged on the inner wall of the stainless steel layer 102 through an adhesive layer 103, acid-base salts in conveyed substances can be prevented from corroding the stainless steel layer 102, the stainless steel layer 102 is effectively protected, an anti-corrosion layer 105 coats the outer surface of the carbon steel layer 101, the carbon steel layer 101 is isolated from being in contact with the external environment, and the carbon steel layer 101 can be prevented from being corroded by rainwater, oxygen and harmful gases in the external environment.
Referring to fig. 1 and 3, the depth of the annular groove 5 is greater than the length of the annular plate 4, so that the sealing ring 6 can be placed in the annular groove 5 without affecting the tightness of the combination of the annular plate 4 and the annular groove 5; the thickness of the annular plate 4 is not larger than the groove width of the annular groove 5, which helps the annular plate 4 to be clamped inside the annular groove 5.
Referring to fig. 2, the thickness of the carbon steel layer 101 is greater than the thickness of the stainless steel layer 102, which helps to reduce the manufacturing cost of the present invention.
Referring to fig. 1 and 3, the sealing ring 6 is made of water-swellable rubber, so that the sealing ring 6 can swell when encountering water, and can effectively prevent the delivered liquid substances from leaking, and the sealing performance of the device is further improved.
Referring to fig. 2, the adhesive layer 103 is a polybutadiene adhesive, which can make the corrosion-resistant layer 104 adhere to the stainless steel layer 102 on one hand, and can also function as a sealant on the other hand, so as to increase the sealing performance of the device.
Referring to fig. 2, the corrosion-resistant layer 104 is a high-density polyethylene tube, which can resist corrosion of acid and alkali and various salts, and can increase toughness and cold resistance of the device.
Referring to fig. 2, the anti-corrosion layer 105 is sequentially provided with an epoxy zinc-rich primer, an epoxy micaceous iron antirust intermediate paint and an ultra-thick slurry type epoxy asphalt anti-corrosion paint from inside to outside, and the multi-layer paint can effectively isolate the carbon steel layer 101 from the external environment, thereby greatly enhancing the anti-corrosion capability of the device and prolonging the service life of the device.
In summary, the following steps: an annular plate 4 is arranged on one end face of the composite steel pipe body 1, an annular groove 5 is formed in the other end face of the composite steel pipe body, a sealing ring 6 is arranged inside the annular groove 5, the annular plate 4 is clamped inside the annular groove 5, and the sealing ring 6 increases the sealing property of connection between the annular plate 4 and the annular groove 5; the composite steel pipe body 1 comprises a carbon steel layer 101, a stainless steel layer 102 is fixedly arranged on the inner wall of the carbon steel layer 101, a corrosion-resistant layer 104 is fixedly arranged on the inner wall of the stainless steel layer 102 through an adhesive layer 103, the stainless steel layer 102 can be prevented from being corroded by acid, alkali and salt, the outer surface of the carbon steel layer 101 is coated with a corrosion-resistant layer 105, and the carbon steel layer 101 can be prevented from being corroded by rainwater, oxygen and harmful gas in the external natural environment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a compound steel pipe of inside lining stainless steel, includes compound steel pipe body (1), its characterized in that: the outer side surfaces of two ends of the composite steel pipe body (1) are fixedly connected with flange plates (2), the end surface of each flange plate (2) is provided with a plurality of threaded holes (3), the plurality of threaded holes (3) are arranged around the circle center of each flange plate (2), and the plurality of composite steel pipe bodies (1) are detachably connected with the threaded holes (3) through bolts (7); an annular plate (4) is coaxially and fixedly arranged on one end face of the composite steel pipe body (1), an annular groove (5) corresponding to the annular plate (4) is formed in the other end face of the composite steel pipe body (1), and a sealing ring (6) is fixedly arranged inside the annular groove (5); the composite steel pipe body (1) comprises a carbon steel layer (101), wherein a stainless steel layer (102) is fixedly arranged on the inner wall of the carbon steel layer (101), a corrosion-resistant layer (104) is fixedly arranged on the inner wall of the stainless steel layer (102) through an adhesive layer (103), and the outer surface of the carbon steel layer (101) is coated with a corrosion-resistant layer (105).
2. The stainless steel lined composite steel pipe of claim 1, wherein: the depth of the annular groove (5) is larger than the length of the annular plate (4), and the thickness of the annular plate (4) is not larger than the groove width of the annular groove (5).
3. The stainless steel lined composite steel pipe of claim 1, wherein: the thickness of the carbon steel layer (101) is greater than the thickness of the stainless steel layer (102).
4. The stainless steel lined composite steel pipe of claim 1, wherein: the sealing ring (6) is made of water-swelling rubber.
5. The stainless steel lined composite steel pipe of claim 1, wherein: the adhesive layer (103) is a polybutadiene adhesive.
6. The stainless steel lined composite steel pipe of claim 1, wherein: the corrosion resistant layer (104) is a high density polyethylene tube.
7. The stainless steel lined composite steel pipe of claim 1, wherein: the anti-corrosion layer (105) is sequentially provided with an epoxy zinc-rich primer, an epoxy micaceous iron antirust intermediate paint and an ultra-thick slurry type epoxy asphalt anti-corrosion paint from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152780.9U CN212338453U (en) | 2020-06-20 | 2020-06-20 | Stainless steel lined composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152780.9U CN212338453U (en) | 2020-06-20 | 2020-06-20 | Stainless steel lined composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338453U true CN212338453U (en) | 2021-01-12 |
Family
ID=74078018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021152780.9U Expired - Fee Related CN212338453U (en) | 2020-06-20 | 2020-06-20 | Stainless steel lined composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338453U (en) |
-
2020
- 2020-06-20 CN CN202021152780.9U patent/CN212338453U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212338453U (en) | Stainless steel lined composite steel pipe | |
| CN213394010U (en) | Water supply is waterproof connection structure of pipeline for unit | |
| CN215215177U (en) | Anti-corrosion heat-preservation oil gas gathering and transportation pipeline | |
| CN204328250U (en) | A kind of compound thermal insulation pipe | |
| CN215173059U (en) | Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter | |
| CN203213265U (en) | Anti-corrosive diffuser for deepsea sewage discharging | |
| CN203258214U (en) | Steel-plastic composite pipe | |
| CN110873236A (en) | Novel corrosion-resistant composite steel pipe and production method thereof | |
| CN212929031U (en) | Chemical cooling mixing tube | |
| CN204328251U (en) | The standoff compound thermal insulation pipe of a kind of band | |
| CN203223669U (en) | Pipe hoop for connecting plastic-coated steel pipes | |
| CN204328236U (en) | The standoff new type compound Glass Steel Tube of a kind of band | |
| CN210600684U (en) | Steel pipe with good corrosion prevention effect | |
| CN208381602U (en) | 3PE anti-corrosive steel tube | |
| CN207394164U (en) | A kind of connector and the connecting tube being used cooperatively with it | |
| CN207985109U (en) | A kind of insulated connecting device of naval vessel sea water piping system pipeline and naval vessel steel shell | |
| CN106247034A (en) | Spigot-and-socket steel bushing concrete pressure pipe | |
| CN213332866U (en) | Dirty lubricating oil conveying pipeline for ship body | |
| CN209876177U (en) | Water supply and drainage internal and external plastic-coated composite steel pipe | |
| CN211853051U (en) | Outer 3PE internal hot-melting epoxy resin steel pipe | |
| CN215477268U (en) | Vacuum-resistant steel lining storage tank | |
| CN216306971U (en) | Petroleum pipeline with good weather resistance for petroleum transportation | |
| CN216520321U (en) | Anti-corrosion structure for isolating oxygen for flange | |
| CN201827580U (en) | U-shaped flange pipe joint used for ultra-high molecular polyethylene composite pipe | |
| CN216009876U (en) | Pipeline for chemical industry that frost-resistant type was prevented leaking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210112 |