CN107061927A - A kind of corrosion resistant ductile iron pipe - Google Patents
A kind of corrosion resistant ductile iron pipe Download PDFInfo
- Publication number
- CN107061927A CN107061927A CN201710285504.6A CN201710285504A CN107061927A CN 107061927 A CN107061927 A CN 107061927A CN 201710285504 A CN201710285504 A CN 201710285504A CN 107061927 A CN107061927 A CN 107061927A
- Authority
- CN
- China
- Prior art keywords
- spheroidal graphite
- graphite cast
- iron pipe
- ductile iron
- iron
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/06—Coatings characterised by the materials used by cement, concrete, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of corrosion resistant ductile iron pipe, including body bellmouth, spheroidal graphite cast-iron lid, external cast iron pipe, spheroidal graphite cast-iron body, cushion rubber ring, bolt, acid-base modifier storage ball, connecting tube, corrosion-resistant coating, cement lining layer, outside anti-erosion layer, permeability hole.The beneficial effects of the invention are as follows：Liner cement layer can protect water quality, reduce the loss of flood peak, improve the service life of T-shaped ductile iron pipe, corrosion-resistant coating can improve the corrosion resistance to the soda acid composition in sewage, outside anti-erosion layer can protect ductile iron pipe to be embedded in erosion suffered under soil for a long time, further improve the corrosion resistance of T-shaped ductile iron pipe, acid-base modifier is stored in acid-base modifier storage ball, for neutralizing the soda acid composition in sewage, reduce to the corrosion inside ductile iron pipe, the service life of ductile iron pipe has been effectively ensured in the present invention, it is convenient that follow-up sewage disposal is provided simultaneously.
Description
Technical field
The present invention relates to a kind of corrosion resistant ductile iron pipe.
Background technology
T-shaped ductile iron pipe be used to recommending for admission to school water, coal gas, atmosphere, oil and warm oneself the daily elevated pressures fluid such as steam and
The characteristics of T-shaped spheroidal graphite casting material of other use is that inner wall smooth, lightweight, corrosion-resistant, good antiscale property function be good, the low one-level of cost.
The forging technology of ductile iron pipe, which has, continuously makes method and water cooling centrifugation forging method, and individual middle water cooling is, when modern skill, not conform to technique
Spheroidal graphite cast-iron skill work(and plain cast iron pipe are contrasted, the corrosion resistance for the plain cast iron pipe that not only stood facing each other, and with intensity it is high,
Good toughness, wall are thin, lightweight, impact resistance, bending function is big, install box lunch etc., and also achieve fulfil well at home
With.
Though the existing domestic ductile iron pipe for defeated sewage has corrosion-resistant coating, unavoidably it is corroded, simply corrodes
Speed is slow, but the soda acid in sewage is seriously uneven, and sewage quantity is big, and long-term conventional corrosion is slowly destroyed inside ductile iron pipe
Structure, and change sewage conduct more bother, therefore, a kind of corrosion resistant ductile iron pipe is proposed regarding to the issue above.
The content of the invention
The purpose of the present invention is that provides a kind of corrosion resistant ductile iron pipe to solve the above problems.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of corrosion resistant ductile iron pipe, including spheroidal graphite
Cast iron body, described spheroidal graphite cast-iron body one end is provided with bellmouth, and the spheroidal graphite cast-iron body stage casing is connected with Puncture Tube, institute
State and spheroidal graphite cast-iron lid is installed at the top of Puncture Tube, if bolt stem is provided with the spheroidal graphite cast-iron tops, and the spheroidal graphite is cast
Cushion rubber ring is provided with iron covering, the spheroidal graphite cast-iron body most external is provided with outside anti-erosion layer, the outside anti-erosion layer
Lower section is provided with cement lining layer, and the spheroidal graphite cast-iron body penetralia is provided with corrosion-resistant coating, the Puncture Tube and connecting tube
Connection, the connecting tube bottom is connected with acid-base modifier storage ball, and permeability hole is provided with the acid-base modifier storage ball.
It is preferred that, the liner cement layer is the inside packed layer of the spheroidal graphite cast-iron body.
It is preferred that, the thickness of the liner cement layer is 3-10mm.
It is preferred that, the permeability hole is circular web frame, and a diameter of 2-3mm.
It is preferred that, it is to be flexibly connected between the spheroidal graphite cast-iron lid and the Puncture Tube.
The beneficial effects of the invention are as follows：Liner cement layer can protect water quality, reduce the loss of flood peak, improve T-shaped spheroidal graphite casting
The service life of iron pipe, corrosion-resistant coating can improve the corrosion resistance to the soda acid composition in sewage, outside anti-erosion layer energy
Enough protection ductile iron pipes are embedded in erosion suffered under soil for a long time, further improve the corrosion resistance of T-shaped ductile iron pipe,
Acid-base modifier is stored in acid-base modifier storage ball, for neutralizing the soda acid composition in sewage, is reduced to ductile iron pipe
The service life of ductile iron pipe has been effectively ensured in internal corrosion, the present invention, while being provided conveniently to follow-up sewage disposal.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the diagrammatic cross-section of spheroidal graphite cast-iron body of the present invention；
In figure：1st, body bellmouth, 2, spheroidal graphite cast-iron lid, 3, external cast iron pipe, 4, spheroidal graphite cast-iron body, 5, cushion rubber ring, 6, bolt,
7th, acid-base modifier storage ball, 8, connecting tube, 9, corrosion-resistant coating, 10, cement lining layer, 11, outside anti-erosion layer, 12, infiltration
Hole.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to shown in Fig. 1-2, a kind of corrosion resistant ductile iron pipe, including spheroidal graphite cast-iron body 4, spheroidal graphite cast-iron body
4 one end are provided with bellmouth 1, and the stage casing of spheroidal graphite cast-iron body 4 is connected with Puncture Tube 3, and the top of Puncture Tube 3 is provided with spheroidal graphite cast-iron lid
2, cushion rubber ring 5 is provided with if being provided with the top of spheroidal graphite cast-iron lid 2 on bolt stem 6, and spheroidal graphite cast-iron lid 2, spheroidal graphite cast-iron body 4
Most external is provided with outside anti-erosion layer 11, and the outside lower section of anti-erosion layer 11 is provided with cement lining layer 10, spheroidal graphite cast-iron body 4
Penetralia is provided with corrosion-resistant coating 9, and Puncture Tube 3 is connected with connecting tube 8, and the bottom of connecting tube 8 connects with acid-base modifier storage ball 7
Connect, permeability hole 12 is provided with acid-base modifier storage ball 7.
Liner cement layer 10 is the inside packed layer of spheroidal graphite cast-iron body 4, effectively protects liner cement layer 10 not rotten
Erosion destruction, reduces the loss of water, the thickness of liner cement layer 10 is 3-10mm, and rational thickness can improve the guarantee to water quality
With reduce water loss, permeability hole 12 is circular web frame, and a diameter of 2-3mm, it is to avoid acid-base modifier consumption is too fast, causes into
This is too high, to be flexibly connected between spheroidal graphite cast-iron lid 2 and Puncture Tube 3, can open acid-base accommodation of the spheroidal graphite cast-iron lid 2 to dry powder-shaped
Agent is supplemented.
First, the most external of spheroidal graphite cast-iron body 4 be outer anti-erosion layer 11, the various erosions that can effectively completely cut off in soil,
The penetralia of spheroidal graphite cast-iron body 4 is corrosion-resistant coating 9, it is possible to increase to the corrosion resistance of soda acid composition in water, liner cement layer 4
For internal packed layer, liner cement layer 4 ensure that water quality and reduce the loss of water, and acid-base modifier storage ball 7 can be to sewage
In soda acid carry out part neutralization, small permeability hole 12 avoid acid-base modifier consumption it is too fast, can open put for a period of time
Acid-base modifier is supplemented in the spheroidal graphite cast-iron lid 2 of soil surface, soda acid composition in sewage is effectively reduced and spheroidal graphite is cast
The corrosion of iron pipe, extends service life.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of corrosion resistant ductile iron pipe, including spheroidal graphite cast-iron body（4）, it is characterised in that：The spheroidal graphite cast-iron body
（4）One end is provided with bellmouth（1）, and the spheroidal graphite cast-iron body（4）Stage casing and Puncture Tube（3）Connection, the Puncture Tube（3）Top
Portion is provided with spheroidal graphite cast-iron lid（2）, the spheroidal graphite cast-iron lid（2）If being provided with bolt stem on top（6）, and the spheroidal graphite cast-iron
Lid（2）On be provided with cushion rubber ring（5）, the spheroidal graphite cast-iron body（4）Most external is provided with outside anti-erosion layer（11）, it is described outer
Portion's anti-erosion layer（11）Lower section is provided with cement lining layer（10）, the spheroidal graphite cast-iron body（4）Penetralia is provided with anticorrosion
Layer（9）, the Puncture Tube（3）With connecting tube（8）Connection, the connecting tube（8）Bottom stores ball with acid-base modifier（7）Even
Connect, the acid-base modifier stores ball（7）On be provided with permeability hole（12）.
2. a kind of corrosion resistant ductile iron pipe according to claim 1, it is characterised in that：The liner cement layer（10）
For the spheroidal graphite cast-iron body（4）Inside packed layer.
3. a kind of corrosion resistant ductile iron pipe according to claim 1, it is characterised in that：The liner cement layer（10）
Thickness be 3-10mm.
4. a kind of corrosion resistant ductile iron pipe according to claim 1, it is characterised in that：The permeability hole（12）For circle
Shape web frame, and a diameter of 2-3mm.
5. a kind of corrosion resistant ductile iron pipe according to claim 1, it is characterised in that：The spheroidal graphite cast-iron lid（2）
With the Puncture Tube（3）Between for be flexibly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285504.6A CN107061927A (en) | 2017-04-27 | 2017-04-27 | A kind of corrosion resistant ductile iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285504.6A CN107061927A (en) | 2017-04-27 | 2017-04-27 | A kind of corrosion resistant ductile iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061927A true CN107061927A (en) | 2017-08-18 |
Family
ID=59604721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710285504.6A Withdrawn CN107061927A (en) | 2017-04-27 | 2017-04-27 | A kind of corrosion resistant ductile iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642565A (en) * | 2018-06-27 | 2020-01-03 | 南京理工大学 | Durability improving method for nodular cast iron pipe for conveying desalinated seawater |
-
2017
- 2017-04-27 CN CN201710285504.6A patent/CN107061927A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642565A (en) * | 2018-06-27 | 2020-01-03 | 南京理工大学 | Durability improving method for nodular cast iron pipe for conveying desalinated seawater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170818 |