CN208651964U - The full antiseptic steel-plastic of polyureas introduces pipe - Google Patents
The full antiseptic steel-plastic of polyureas introduces pipe Download PDFInfo
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- CN208651964U CN208651964U CN201821268972.9U CN201821268972U CN208651964U CN 208651964 U CN208651964 U CN 208651964U CN 201821268972 U CN201821268972 U CN 201821268972U CN 208651964 U CN208651964 U CN 208651964U
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- pipe
- resistant coating
- erosion resistant
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- seamless steel
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Abstract
The utility model belongs to natural gas transportation technical field, is that the full antiseptic steel-plastic of the excellent polyureas of antiseptic property introduces pipe specifically.It includes polyethylene pipe, exterior lock tube and seamless steel pipe, the anti-corrosion adhesive layer that the surface of the seamless steel pipe is provided with conducive to preservative adherency.The full antiseptic steel-plastic of the polyureas of the offer of the utility model, which introduces pipe, has stronger Corrosion Protection, can use the longer time.
Description
Technical field
The utility model belongs to natural gas transportation technical field, is the full anti-corrosion of the excellent polyureas of antiseptic property specifically
Steel modeling introduces pipe.
Background technique
Polyethylene pipe has preferable corrosion resistance and impact resistance, therefore is favored deeply by gas industry, is widely used in
In gas works.When polyvinyl fuel gas pipeline is introduced, need to using steel-plastic joint by polyvinyl fuel gas pipeline with it is seamless
Steel pipe docks to form introducing pipeline.But existing seamless steel pipe is mostly coating steel pipe, is easy in the complex environment of underground
By dielectric corrosions such as acid, alkali, salt, it is therefore desirable to handle in process its surface.
It is mostly at present spraying epoxy powder and polyurethane to reach waterproof, corrosion-resistant for the processing on seamless steel pipe surface
Effect.But epoxy powder coating intensity difference not damage resistant is sprayed, and high temperature permeability resistance and impact resistance are ineffective, it is unfavorable
Carry out in construction and to steel pipe permanent protection；And polyurethane is more sensitive to temperature and humidity, is easy to lose because of foaming
Effect cannot preferably protect seamless steel pipe.Furthermore exist between polyethylene pipe, steel-plastic joint and coating steel pipe and connect
Seam, easily makes connecting portion by the corrosion failure of environment, reduces the service life for introducing pipeline.
Utility model content
The utility model aim is intended to provide the full antiseptic steel-plastic of polyureas that a kind of antiseptic property is excellent, appearance surface intensity is high
Introduce pipe.
To realize the above-mentioned technical purpose, the technical solution adopted in the utility model is as follows:
A kind of full antiseptic steel-plastic introducing pipe of polyureas, including polyethylene pipe, exterior lock tube and seamless steel pipe, the polyethylene pipe pressure
For system in one end of exterior lock tube, the seamless steel pipe is compressed on the other end of exterior lock tube；The surface setting of the seamless steel pipe is advantageous
In the anti-corrosion adhesive layer of preservative adherency, the outer edge of the anti-corrosion adhesive layer is located at the interior of the thread segment of seamless steel pipe end
Side, the outer edge are edge of the anti-corrosion adhesive layer close to steel pipe end side；The anti-corrosion adhesive layer is sprayed on exterior lock tube
There is erosion resistant coating, the erosion resistant coating is the polyurea anti-corrosion layer sprayed using carbamide paint, and anti-corrosion is crossed at the edge of the erosion resistant coating side
The outer edge of adhesive layer, and the edge of the erosion resistant coating side is located at the inside of the thread segment of seamless steel pipe end, i.e. carbamide paint not
It is sprayed on the thread segment of steel pipe end, the edge of the erosion resistant coating other side is located on polyethylene pipe.
The utility model compared with the prior art the advantages of be: introduce pipe surface spray polyurea erosion resistant coating, because of polyureas
Erosion resistant coating has that high-intensitive, high tearability, acidproof alkali salt corrosive nature is strong, adhesive force is high, the spies such as insensitive to temperature and humidity
Point can enable introducing pipe have strong performance, be not easily susceptible to the corrosion failure of environment, can use longer time, and the two of erosion resistant coating
End is located on polyethylene pipe and seamless upper tube, and erosion resistant coating is made to be covered on exterior lock tube and seamless steel pipe and polyethylene pipe
In seam, the Corrosion Protection of seaming position is improved.
Detailed description of the invention
The utility model can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view of the anti-corrosion adhesive layer of the utility model；
Fig. 3 is the recessed portion structural schematic diagram of the utility model；
Main element symbol description is as follows: 1, polyethylene pipe；2, exterior lock tube；3, erosion resistant coating；4, seamless steel pipe；5, anti-corrosion is attached
Layer；6, recessed portion；7, it is bonded column.
Specific embodiment
It is right with reference to the accompanying drawings and examples in order to make those skilled in the art that the utility model may be better understood
Technical solutions of the utility model further illustrate.
Referring to attached drawing 1 to 3: the full antiseptic steel-plastic of polyureas in figure introduces pipe, including polyethylene pipe 1, exterior lock tube 2 and seamless steel
Pipe 4, polyethylene pipe 1 and seamless steel pipe 4 are compressed on the both ends of exterior lock tube 2 respectively, are provided on the surface of seamless steel pipe 4 coarse
Anti-corrosion adhesive layer 5, anti-corrosion adhesive layer 5 are used to improve the adhesive force between erosion resistant coating 3 and seamless steel pipe 4；The anti-corrosion adhesive layer 5
Outer edge is located at the inside of the thread segment of 4 end of seamless steel pipe；Erosion resistant coating is coated on anti-corrosion adhesive layer 5 and exterior lock tube 2
3, erosion resistant coating 3 is the polyurea anti-corrosion layer using carbamide paint, and the outside of anti-corrosion adhesive layer 5 is crossed at the edge of 3 side of erosion resistant coating
Edge, and the edge of 3 side of erosion resistant coating is located at the inside of the thread segment of 4 end of seamless steel pipe, the edge of 3 other side of erosion resistant coating is located at
On polyethylene pipe 1.
In order to enable erosion resistant coating 3 preferably to protect to seamless steel pipe 4, and facilitate spray process, in above-described embodiment,
Preferably: crossing the outer edge 10mm of anti-corrosion adhesive layer 5 in the edge of 3 side of erosion resistant coating.
For the ease of the seam being more conducive between protection exterior lock tube 2 and polyethylene pipe 1, in above-described embodiment, preferably: anti-
The Edge Distance polyethylene pipe 1 of rotten 3 other side of layer and the junction 50mm of exterior lock tube.
In order to improve the adhesive force for the erosion resistant coating 3 being sprayed on polyethylene pipe 1, in above-described embodiment, preferably: in poly- second
1 surface of alkene pipe is evenly equipped with hemispheric recessed portion 6 by the part that erosion resistant coating 3 covers, recessed portion 6 bottom surface protrusion be provided with to
A few bonding column 7, bonding column 7 are integrally formed by Shooting Technique and recessed portion 6；Bonding column 7 is for improving 1 He of polyethylene pipe
The contact area of erosion resistant coating 3 enables erosion resistant coating 3 sufficiently to contact with polyethylene pipe 1, reduces the risk that erosion resistant coating 3 falls off.
The above-mentioned full antiseptic steel-plastic of polyureas introduces pipe and is made of unique processing technology, specific embodiment are as follows:
The full antiseptic steel-plastic of polyureas introduces pipe processing technique, including metal component preprocessing, compacting introduce pipe, performance test with
And spraying corrosion resistant coating 3, it includes combining the compacting respectively of polyethylene pipe 1 and seamless steel pipe 4 in exterior lock tube 2 that the compacting, which introduces pipe,
Both ends.
When metal component preprocessing, first by 4 blanking of seamless steel pipe, then the blank of the seamless steel pipe 4 after blanking is placed on
Preheating 10~20 minutes or so in 100 °~150 ° ovens, removes remaining moisture on blank, then by lathe to seamless steel
The end of pipe 4 is handled, and vehicle is gone out horse mouthful tooth and thread segment；The surface of seamless steel pipe 4 is handled later, first using throwing
Ball machine removes the rusty stain on 4 surface of seamless steel pipe, then with surface of the sand-blasting machine to seamless steel pipe 4 to carry out coarse processing formation anti-corrosion attached
Layer 5.The both ends that the seamless steel pipe 4 completed the process and polyethylene pipe 1 are compressed on exterior lock tube 2 respectively are formed and introduce pipe, compacting
Afterwards, exterior lock tube, steel end connector and polyethylene pipe guarantee with one heart, and polyethylene pipe surfaces externally and internally is not damaged, scratch.By what is suppressed
The strength test that pipe carries out 1min in the environment of 0.6Mpa is introduced, and carries out the air-tightness of 2min in the environment of 2.5Kpa
Test, it is ensured that introducing pipe is with good performance, and rear is to introduce pipe spraying corrosion resistant coating 3.
The erosion resistant coating 3 is polyurea anti-corrosion layer, and spraying process includes the following steps:
Step 1: the preparation of rapidoprint；
The raw material of carbamide paint are put into blender and are stirred, if the raw material of carbamide paint enter stirring
If the temperature before device is lower than 10 DEG C, preheated with incubator；The carbamide paint stirred evenly is packed into spraying equipment again
In；The surface of seamless steel pipe 4 is preheated between 110 DEG C ~ 130 DEG C, and the compacting linkage section of seamless steel pipe 4 and exterior lock tube 2 is not
Preheating, then be placed on pipe is introduced in the spray station of spraying equipment；
Step 2: spraying conditions are determined；
Spray pressure 2000Psi, 65 DEG C of spraying temperature are pressed to the running parameter of spraying equipment, introduce pipe spin rotary speed
0.5r/s, spray gun movement speed 15mm/s are configured to ensure that carbamide paint can uniformly spray on the surface for introducing pipe；So
The position of spray head is set afterwards, makes the spraying width 100mm of spray head to cooperate the movement speed for spraying width and spray gun,
And ensure that the rear end in integral spray face is not present with the thread segment of 4 end of seamless steel pipe and be overlapped, it avoids being sprayed on thread segment poly-
Urea coating causes the waste of material and the thread pitch of thread segment to be filled；The stroke of spray head is set, integral spray face is made
The junction of exterior lock tube 2 Yu polyethylene pipe 1 is crossed in front end, and the connection gap between exterior lock tube 2 and polyethylene pipe 1 is made to obtain anti-corrosion
The protection of layer 3；
Step 3: protection non-spraying area；
By casing tooling sleeve on polyethylene pipe 1, and company of the inner end of casing tooling apart from polyethylene pipe and exterior lock tube 2
Meet place 50mm；By another set of plumber's encapsulation on the thread segment of 4 end of seamless steel pipe, and the interior end cap of casing tooling crosses screw thread
Section 50mm；The casing tooling is market selling product.
Step 4: examination spray observation spraying effect；
Plastic cloth by a block length not less than 200mm is placed on the surface of seamless steel pipe 4, then opens spraying equipment, makes
Carbamide paint is sprayed on plastic cloth by spray head positioning, and after spraying 6s, mobile plastic cloth 100mm gather spray head reposition will
Urea coating is sprayed on plastic cloth, and sprays 6s again, is then shut off spraying equipment, compares the coating being sprayed on plastic cloth twice
Whether uniformity；Difference is then again stirring for carbamide paint if it exists, removes plastic cloth if consistent, and be again turned on spraying and set
It is standby that be sprayed on spray head positioning carbamide paint on seamless steel pipe 4, spraying equipment is closed after spraying 6s；It compares on seamless steel pipe 4
Coating and plastic cloth on coating whether uniformity, separately seamless steel pipe 4 is surface-treated if inconsistent, if one
Enable carries out subsequent step.
Step 5: spray polyurea erosion resistant coating；
Spraying equipment is opened, equipment is made voluntarily to carry out spraying operation, spray head is closed in spraying after the completion, and introducing pipe is kept to continue certainly
Turn 2min, pipe will be introduced later and remove spraying equipment and be placed on bracket and solidify, when solidification guarantees clean surrounding environment
Without dust, collisionless during solidification.The full antiseptic steel-plastic of polyureas of the present embodiment processing introduces pipe after the solidification is complete, can be to anti-
Exposed part brush antisepsis finishing paint between rotten layer 3 and thread segment, gives thread segment brush lead red alcohol acid antirust paint.
In order to make in casing tooling not reduced the waste of coating by direct spraying carbamide paint, in above-described embodiment, preferably
Ground: thread segment 50mm of the rear end in the integral spray face of spray head apart from 4 end of seamless steel pipe, exterior lock tube 2 and poly- second are crossed in front end
The junction 50mm of alkene pipe 1；The front end is one end of spray head direction of advance.
In order to make seamless steel pipe 4 obtain preferable spraying effect, in above-described embodiment, preferably: 4 surface of seamless steel pipe
Preheating temperature is 120 DEG C.
In order to ensure erosion resistant coating 3 is fully cured, in above-described embodiment, preferably: the curing time of erosion resistant coating 3 is 48 small
When.
In order to make seamless steel pipe 4 that there are preferable cleannes, in above-described embodiment, preferably: removing on 4 surface of seamless steel pipe
Grade of becoming rusty is Sa2.5 grades.
If the full antiseptic steel-plastic of the polyureas that the present embodiment processes introduces the painting that pipe finds erosion resistant coating 3 when carrying out qualified detection
Layer is had damage or leak source place then needs to be repaired or recoated；
The mode of repairing are as follows: damage and the coating loosened will be thoroughly removed, then will be exposed with sandblasting or wire brush
Ground and surrounding 20mm within the scope of coating feather plucking, and dirt is cleaned out；Use the materials repairing compatible with dope layer
Coating, and repair coating thickness should be equal or slightly larger than former coating layer thickness.
The mode of recoating are as follows: former coating should be removed when recoating leak source, and re-start surface treatment.If former coating is viscous
Knot is secured, and dry, clean, the coating removal that can also need not remove former coating, but must will damage and loosen, and will be remaining
Coating and dew iron position feather plucking, are then recoated with same coating.
Pipe is introduced to the full antiseptic steel-plastic of polyureas provided by the utility model above to be described in detail.Specific embodiment
Illustrate the method and its core concept for being merely used to help understand the utility model.It should be pointed out that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvement can also be carried out to the utility model
And modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (5)
1. a kind of full antiseptic steel-plastic of polyureas introduces pipe, including polyethylene pipe (1), exterior lock tube (2) and seamless steel pipe (4), described poly-
Ethylene tube (1) is compressed on one end of exterior lock tube (2), and the seamless steel pipe (4) is compressed on the other end of exterior lock tube (2), feature
Be: the surface of the seamless steel pipe (4) is provided with anti-corrosion adhesive layer (5), and the outer edge of the anti-corrosion adhesive layer (5) is located at nothing
Stitch the inside of the thread segment of steel pipe (4) end；The surface of the anti-corrosion adhesive layer (5) and exterior lock tube (2) is coated with erosion resistant coating
(3), the erosion resistant coating (3) is polyurea anti-corrosion layer, and the outer edge of anti-corrosion adhesive layer (5) is crossed at the edge of erosion resistant coating (3) side,
And the edge of erosion resistant coating (3) side is located at the inside of the thread segment of seamless steel pipe (4) end, the edge of erosion resistant coating (3) other side
On polyethylene pipe (1).
2. the full antiseptic steel-plastic of a kind of polyureas according to claim 1 introduces pipe, it is characterised in that: the erosion resistant coating (3) one
Cross the outer edge 10mm of anti-corrosion adhesive layer (5) in the edge of side.
3. the full antiseptic steel-plastic of a kind of polyureas according to claim 1 introduces pipe, it is characterised in that: the erosion resistant coating (3) is another
The Edge Distance polyethylene pipe (1) of side and the junction 50mm of exterior lock tube.
4. the full antiseptic steel-plastic of a kind of polyureas according to claim 1 introduces pipe, it is characterised in that: the polyethylene pipe (1)
Surface is evenly equipped with multiple recessed portions (6) by the part that erosion resistant coating (3) covers.
5. the full antiseptic steel-plastic of a kind of polyureas according to claim 4 introduces pipe, it is characterised in that: in the recessed portion (6)
Protrusion is vertically arranged at least one bonding column (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268972.9U CN208651964U (en) | 2018-08-08 | 2018-08-08 | The full antiseptic steel-plastic of polyureas introduces pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268972.9U CN208651964U (en) | 2018-08-08 | 2018-08-08 | The full antiseptic steel-plastic of polyureas introduces pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651964U true CN208651964U (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821268972.9U Active CN208651964U (en) | 2018-08-08 | 2018-08-08 | The full antiseptic steel-plastic of polyureas introduces pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825931A (en) * | 2018-08-08 | 2018-11-16 | 华永康 | The full antiseptic steel-plastic of polyureas introduces pipe and its processing technology |
-
2018
- 2018-08-08 CN CN201821268972.9U patent/CN208651964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825931A (en) * | 2018-08-08 | 2018-11-16 | 华永康 | The full antiseptic steel-plastic of polyureas introduces pipe and its processing technology |
| CN108825931B (en) * | 2018-08-08 | 2023-07-21 | 华永康 | Processing technology of polyurea full-corrosion-resistant steel-plastic introducing pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220211 Address after: 400000 building a, yanjiawan Industrial Park, Tianchi village, Geleshan town, Shapingba District, Chongqing Patentee after: Chongqing xindafu Machinery Co.,Ltd. Address before: 400036 building A3, yanjiawan Tianchi Industrial Park, Tianchi village, Geleshan town, Shapingba District, Chongqing Patentee before: Hua Yongkang |