CN203189915U - Concave inter-tube connecting piece with polymer coating - Google Patents
Concave inter-tube connecting piece with polymer coating Download PDFInfo
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- CN203189915U CN203189915U CN 201320257538 CN201320257538U CN203189915U CN 203189915 U CN203189915 U CN 203189915U CN 201320257538 CN201320257538 CN 201320257538 CN 201320257538 U CN201320257538 U CN 201320257538U CN 203189915 U CN203189915 U CN 203189915U
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- pipe
- groove
- lock
- coating
- tube
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Abstract
The utility model discloses a concave inter-tube connecting piece with a polymer coating, and the connecting piece comprises a tube loop and an end tube; two semi-circular lock plates are arranged on the tube loop; both ends of the two lock plates are provided with lock benches; the two lock benches of each lock plate are fastened by bolts so that the two semi-circular lock plates form an annular shape, wherein a groove goes around the middle part of the outer wall of the end tube; the groove and the end tube are integrated when being manufactured; three bosses are arranged on the inner wall of each lock plate; a lock groove is formed between each two adjacent bosses; the middle boss of the three bosses of each lock plate and the groove on the related end tube are fitted; both ends of the groove and the lock groove are corresponding one by one and fitted; coatings are arranged on the inner wall and the outer wall of the tube loop and those of the end tube; and the coatings are formed by spraying polymer epoxy resin powder coating or polymer polyvinyl chloride powder coating and curing. A sealing rubber strip is arranged in each lock groove, and the lock grooves and the sealing rubber strips are fixedly adhered. According to the concave inter-tube connecting piece with the polymer coating, the structure is simple, the use is convenient, the connection is firm, the anti-corrosion effect is good, and the service life is long.
Description
Technical field:
The utility model relates to the corrosion-proof technology for pipeline field, relates in particular to link between a kind of recessed formula pipe that has a polymeric coating layer.
Background technique:
Steel pipe is coated with feature by the surface plating and can be divided into: clarinet (do not plate and be coated with) and plating coating pipe.The coating pipe has galvanized pipe, the steel pipe of the pipe of aluminizing, chromium-plated tube, aluminizing pipe and other alloy-layers.Coated pipe has external coating pipe, undercoating pipe, inside and outside coating pipe.Usually the coating that adopts has the corrosion-inhibiting coating material of plastics, epoxy resin, coal tar epoxy and various glass moulds.Coating steel pipes forms its excellent performance through the powder melts spraying technology in inwall (when needing outer wall also can) applied plastic.Compare with galvanized pipe, have anticorrosive, non-corrosive, incrustation, smooth smoothness, cleaning are not nontoxic, advantages such as long service life.According to test, be more than three times of galvanized pipe the working life of steel-plastic composite pipe.Compare with plastic tube, have the mechanical strength height, advantage such as withstand voltage, good heat resistance.Because matrix is steel pipe, so do not have embrittlement, problem of aging.Can be widely used in fluids conveying and heating engineerings such as tap water, coal gas, chemical product.The coating steel pipe is that applied plastic forms on large-caliber spiral welded tube and ratio-frequency welded tube basis, can be according to different needs application of polyvinyl (PVC), polyethylene (PE), the plastic coating of epoxy resin various different performances such as (EPOZY), adhesion is good, corrosion resistance is strong, can anti-strong acid, highly basic and other chemical corrosion, nontoxic, not corrosion, wear-resisting, shock-resistant, osmotic-pressure-tolerant is strong, pipe surface is smooth, do not adhere to any material, can reduce the resistance when carrying, improve flow and transfer efficiency, reduce the discharge pressure loss, by updating the Recipe of powder coating, make the more outstanding certainty that become of respective coatings performance of formation.Solvent-free in the coating, material can not be oozed out, thereby the medium of carrying can not be polluted, thereby guarantee clarity and the wholesomeness of fluid, but be used alternatingly-40 ℃ to+80 ℃ scope cold cycling, do not wear out, do not chap, thereby can under rigorous environment such as cold zone, use.
In the whole pipeline of construction, the problem that needs most solution is one, anticorrosion; Two, there is not leakage.For pipeline, plastic-coated steel has solved pipeline working life substantially, and namely the corrosion-resistant problem still, for the connection between pipe, remains in many defectives.For example, present as long as Placement, plug together connection: in an end enlarging of steel pipe, the other end reducing of steel pipe or keep normal bore, the flared end of adjacent two steel pipes plugs together with necking end or normal bore end and is connected, and welds or do other preservative treatments then with regard to point of contact, during welding, certainly will cause coming off of solder joint position anticorrosive coat, influence working life.End pipe welding manner: for the welding of using end pipe, namely hold an end of pipe to be welded on the end of a steel pipe, the other end of end pipe is welded on the end of another steel pipe, by two steel pipes of end pipe series connection, also has solder joint to come off to cause the problem of leaking easily.The mode that is connected of groove and pipe collar for another example: the outer wall at the two ends of steel pipe arranges groove, after two steel pipe butt joints, use pipe collar to be buckled on the groove of two steel pipes, by behind the pipe collar locking groove two steel pipes being together in series, though this mode applied range, use simple, but, anticorrosion most corrosion resistant coatings that adopt of present pipe collar, antiseptic effect is bad, and causing the pipe collar corrosion to get loose and then cause the problem of leakage is that generation is arranged, and, tube wall arranges groove in the end of steel pipe, must cause the attenuation of channel portions tube wall, has influenced the working life of pipeline.
For solving this technical problem, need to occur a kind of simple in structure, easy to use, connect fastening, favorable anti-corrosion effect, long service life a kind of has link between the recessed formula pipe of polymeric coating layer.
Summary of the invention:
The purpose of this utility model is to overcome the shortcoming that exists in the prior art, provides a kind of simple in structure, easy to use, connect fastening, favorable anti-corrosion effect, long service life a kind of has link between the recessed formula pipe of polymeric coating layer.
To achieve these goals, the utility model provides link between a kind of recessed formula pipe that has a polymeric coating layer, comprise pipe collar and end pipe, pipe collar is provided with the locking plate of two semicircle shapes, the two ends of two locking plates are provided with the lock platform, two lock platforms are by bolton and then that the locking plate of two semicircle shapes is constituted is one circular, wherein, the medium position of the outer wall of described end pipe is surrounded with groove, one-body molded during fabrication between described groove and the described end pipe, the inwall of described locking plate is provided with three road boss, be provided with locked groove between the adjacent twice boss, between one boss in the middle of the three road boss and the groove of holding on the pipe, agree with mutually, corresponding and agree with mutually one by one between the two ends of groove and the locked groove, described pipe collar, be provided with coating on the inner and outer wall of described end pipe, described coating is macromolecule epoxy resin powder coating or macromolecule polyvinyl-chloride powder paint spraying back solidifying.
Be provided with sealing joint strip in the described locked groove, be adhesively fixed between described locked groove and the described sealing joint strip.
Welding is fixing between the two ends of described end pipe and two steel pipes to be connected, and the slightly larger in diameter at the two ends of end pipe is in the caliber of steel pipe to be welded, and the end pipe is gone up the equal diameters of diameter and the steel pipe to be welded of groove.
The length of described end pipe is less than the width of pipe collar.
After welding is finished, one boss in the middle of the three road boss on two locking plates on the pipe collar compressed and agree with on the groove of end pipe, corresponding and agree with mutually one by one between the two ends of groove and the locked groove, that is, the twice boss that is positioned at both sides in the three road boss is pressed on the weld of end pipe and steel pipe to be welded.
The macromolecule polyvinyl-chloride powder paint is to be the powder type coating preparation of main film forming substance with polyvinyl chloride resin.Macromolecule polyvinyl-chloride powder paint component has polyvinyl chloride resin, stabilizer, plasticizing agent, pigment and filler etc. usually.The polyvinyl chloride resin that the PVC powder coating is should be with highly porous, no skin, the melt processable that bulk polymerization makes good or molecular weight lower (mean molecule quantity 700), the suitable suspension pvc resin of particle diameter.PVC powder coating processing method has 2 kinds.A kind of be add in polyvinyl chloride resin that various auxiliary agents mix by doing, melting mixing, granulation, deep cooling pulverize and make powder coating: another kind is prescription material to be heated mixing sieve and obtain powder coating in high-speed mixer.The PVC powder coating can adopt method constructions such as electrostatic spraying, fluidized-bed process, rotational moulding or slush molding, makes powder distribution or sticks to workpiece surface, makes powder melts, levelling solidify to form coating through heated baking.No matter adopt above-mentioned which kind of spraying method, it finally all is that solidifying is at inwall or the outer wall of body.Coating adhesion is stronger, and can be coated with one deck epoxy/acrylic acid resin earlier before coating PVC powder coating is main priming paint, to increase adhesive force of coatings.
The macromolecule epoxy resin powder coating is based on bisphenol A type epoxy resin, linear phenolic resin modified epoxy and aliphatic epoxy resin etc., and is mixing at a certain temperature, and the cooling back is pulverized and formed.It is pollution-free, and melting viscosity is low, and it is firm to film, and good leveling property does not need primer coating film, and mechanical property is good, and excellent reactivity and storage-stable, corrosion resistance are arranged, chemical proofing, the color matching of coating well, wide, the applied range of curing agent range of choice.The macromolecule epoxy resin powder coating mainly is made up of epoxy (EP) subbing and the stable top layer coating (mainly being polyester (SP) or EP/SP mixed-powder) of weathering.The melt temperature of powder coating is 90～130 ℃, the solidifying temperature 130-180 of coating ℃.
Advantage of the present utility model is, and is simple in structure, easy to use, connect fastening, favorable anti-corrosion effect, long service life is specially:
Welding is fixing between the two ends of end pipe and two steel pipes to be connected, and the slightly larger in diameter at the two ends of end pipe is in the caliber of steel pipe to be welded, and the end pipe is the diameter of groove and the equal diameters of steel pipe to be welded upward.The length of end pipe is less than the width of pipe collar.After welding is finished, one boss in the middle of the three road boss on two locking plates on the pipe collar compressed and agree with on the groove of end pipe, corresponding and agree with mutually one by one between the two ends of groove and the locked groove, that is, the both sides twice boss that is positioned in the three road boss is pressed on the weld of holding pipe and steel pipe to be welded.Make two locking plates constitute the circle shape by bolt, for gaining in strength, the number of bolt is set at two.This Placement can not make the attenuation of steel pipe tube wall, and makes the attachment portion water tightness of two steel pipes, and tightness is good, and, be provided with coating between the end tube and tube hoop, increased the working life of link.
Description of drawings:
Fig. 1 is pipe collar structural representation of the present utility model.
Fig. 2 is end tubular construction schematic representation of the present utility model.
The accompanying drawing sign:
1, coating 2, locking plate 3, boss
4, locked groove 5, lock platform 6, bolt
7, groove 8, end pipe
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described.As Fig. 1-shown in Figure 2, Fig. 1 is pipe collar structural representation of the present utility model.Fig. 2 is end tubular construction schematic representation of the present utility model.
The utility model comprises pipe collar and end pipe 8, pipe collar is provided with the locking plate 2 of two semicircle shapes, the two ends of two locking plates 2 are provided with lock platform 5, two lock platforms 5 are fastening and then that the locking plate 2 of two semicircle shapes is constituted is one circular by bolt 6, wherein, the medium position of the outer wall of end pipe 8 is surrounded with groove 7, one-body molded during fabrication between groove 7 and the end pipe 8, the inwall of locking plate 2 is provided with three road boss 3, be provided with locked groove 4 between the adjacent twice boss 3, between managing groove 7 on 8, one boss 3 in the middle of the three road boss 3 and end agree with mutually, corresponding and agree with mutually one by one between the two ends of groove 7 and the locked groove 4, pipe collar, be provided with coating 1 on the inner and outer wall of end pipe 8, coating 1 is macromolecule epoxy resin powder coating or macromolecule polyvinyl-chloride powder paint spraying back solidifying.Be provided with sealing joint strip in the locked groove 4, be adhesively fixed between locked groove 4 and the sealing joint strip.Welding is fixing between the two ends of end pipe 8 and two steel pipes to be connected, and the slightly larger in diameter at the two ends of end pipe 8 is in the caliber of steel pipe to be welded, and end is managed the equal diameters of diameter and the steel pipe to be welded of groove 7 on 8.The length of end pipe 8 is less than the width of pipe collar.After welding is finished, one boss 3 in the middle of the three road boss 3 on two locking plates 2 on the pipe collar are compressed and agree with on the groove 7 of end pipe 8, corresponding and agree with mutually one by one between the two ends of groove 7 and the locked groove 4, that is, the twice boss 3 that is positioned at both sides in the three road boss 3 is pressed on the weld of end pipe 8 and steel pipe to be welded.
The utility model is simple in structure, easy to use, connect fastening, favorable anti-corrosion effect, long service life, welding is fixing between the two ends of end pipe and two steel pipes to be connected, and the slightly larger in diameter at the two ends of end pipe is in the caliber of steel pipe to be welded, and the end pipe is the diameter of groove and the equal diameters of steel pipe to be welded upward.The length of end pipe is less than the width of pipe collar.After welding is finished, one boss in the middle of the three road boss on two locking plates on the pipe collar compressed and agree with on the groove of end pipe, corresponding and agree with mutually one by one between the two ends of groove and the locked groove, that is, the twice boss that is positioned at both sides in the three road boss is pressed on the weld of end pipe and steel pipe to be welded.Make two locking plates constitute the circle shape by bolt, for gaining in strength, the number of bolt is set at two.This Placement can not make the attenuation of steel pipe tube wall, and makes the attachment portion water tightness of two steel pipes, and tightness is good, and, be provided with coating between the end tube and tube hoop, increased the working life of link.
Claims (2)
1. link between a recessed formula pipe that has a polymeric coating layer, comprise pipe collar and end pipe, pipe collar is provided with the locking plate of two semicircle shapes, the two ends of two locking plates are provided with the lock platform, two lock platforms are by bolton and then that the locking plate of two semicircle shapes is constituted is one circular, it is characterized in that, the medium position of the outer wall of described end pipe is surrounded with groove, one-body molded during fabrication between described groove and the described end pipe, the inwall of described locking plate is provided with three road boss, be provided with locked groove between the adjacent twice boss, between one boss in the middle of the three road boss and the groove of holding on the pipe, agree with mutually, corresponding and agree with mutually one by one between the two ends of groove and the locked groove, described pipe collar, be provided with coating on the inner and outer wall of described end pipe, described coating is macromolecule epoxy resin powder coating or macromolecule polyvinyl-chloride powder paint spraying back solidifying.
2. according to link between the described recessed formula pipe that has a polymeric coating layer of claim 1, it is characterized in that, be provided with sealing joint strip in the described locked groove, be adhesively fixed between described locked groove and the described sealing joint strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320257538 CN203189915U (en) | 2013-04-26 | 2013-04-26 | Concave inter-tube connecting piece with polymer coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320257538 CN203189915U (en) | 2013-04-26 | 2013-04-26 | Concave inter-tube connecting piece with polymer coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189915U true CN203189915U (en) | 2013-09-11 |
Family
ID=49106775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320257538 Expired - Lifetime CN203189915U (en) | 2013-04-26 | 2013-04-26 | Concave inter-tube connecting piece with polymer coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189915U (en) |
-
2013
- 2013-04-26 CN CN 201320257538 patent/CN203189915U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Concave inter-tube connecting piece with polymer coating Effective date of registration: 20171130 Granted publication date: 20130911 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Haode Boer Industrial Co.,Ltd. Registration number: 2017370010088 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220526 Granted publication date: 20130911 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Haode Boer Industrial Co.,Ltd. Registration number: 2017370010088 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |