CN106949342A - A kind of ductile iron pipe for adapting to Different climate - Google Patents
A kind of ductile iron pipe for adapting to Different climate Download PDFInfo
- Publication number
- CN106949342A CN106949342A CN201710285451.8A CN201710285451A CN106949342A CN 106949342 A CN106949342 A CN 106949342A CN 201710285451 A CN201710285451 A CN 201710285451A CN 106949342 A CN106949342 A CN 106949342A
- Authority
- CN
- China
- Prior art keywords
- iron pipe
- ductile iron
- layer
- adapting
- spheroidal graphite
- 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- Withdrawn
Links
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
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/153—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of ductile iron pipe for adapting to Different climate, including spheroidal graphite cast-iron body, bellmouth, groove, liner cement layer, cast iron body layer, inorganic heat insulation mortar layer, external protection, corrosion-resistant coating.The beneficial effects of the invention are as follows：Inorganic heat insulation mortar layer being capable of effective insulation and ageing-resistant, it effectively prevent expanding with heat and contract with cold for T-shaped ductile iron pipe big, easy aging and unsuitable shortcoming sunkissed for a long time, 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, external protection can protect cast iron body layer to be embedded in erosion suffered under soil for a long time, further improve the corrosion resistance of T-shaped ductile iron pipe, the present invention efficiently solves T-shaped ductile iron pipe causes T-shaped ductile iron pipe internal structure to be destroyed in the big soil environment of the temperature difference because expanding with heat and contract with cold, water quality and corrosion resistance can not be ensured.
Description
Technical field
The present invention relates to a kind of ductile iron pipe for adapting to Different climate.
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 make method and water-cooled 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.
There are many defects in the existing domestic ductile iron pipe for water delivery, mainly there is easy aging, expands with heat and contract with cold big, is difficult
Irradiated for a long time by sunlight, thus buried in the big soil of the temperature difference anti-T-shaped ductile iron pipe can so that in the presence of expanding with heat and contract with cold,
T-shaped ductile iron pipe internal structure is destroyed, and original ability is lost, therefore, it is proposed to a kind of spheroidal graphite for adapting to Different climate
Cast iron pipe.
The content of the invention
The purpose of the present invention, which is that, provide a kind of spheroidal graphite cast-iron for adapting to Different climate to solve the above problems
Pipe.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of ductile iron pipe for adapting to Different climate,
Including spheroidal graphite cast-iron body, the spheroidal graphite cast-iron body two ends are provided with bellmouth, and the bellmouth is internally provided with some grooves, institute
State spheroidal graphite cast-iron tubular body outermost and be provided with external protection, the external protection lower section is provided with inorganic heat insulation mortar layer,
The inorganic heat insulation mortar layer lower section is provided with cast iron body layer, and the cast iron body layer lower section is provided with liner cement layer, institute
State spheroidal graphite cast-iron tubular body most inner side and be provided with corrosion-resistant coating.
It is preferred that, the inorganic heat insulation mortar layer and the liner cement layer are all filled out for the inside of the spheroidal graphite cast-iron body
Fill layer.
It is preferred that, the thickness of the liner cement layer is 3-10mm.
It is preferred that, the thickness of the inorganic heat insulation mortar layer is about 3-5mm.
It is preferred that, the interior diameter of the bellmouth is more than the diameter of the spheroidal graphite cast-iron body.
The beneficial effects of the invention are as follows：Inorganic heat insulation mortar layer can effective insulation and ageing-resistant, effectively prevent T
Expanding with heat and contract with cold for type ductile iron pipe is big, easy aging and unsuitable shortcoming sunkissed for a long time, and liner cement layer can be protected
Water quality is protected, the loss of flood peak is reduced, the service life of T-shaped ductile iron pipe is improved, corrosion-resistant coating can be improved to the acid in sewage
The corrosion resistance of alkali composition, external protection can protect cast iron body layer to be embedded in erosion suffered under soil for a long time, enter one
Step improves the corrosion resistance of T-shaped ductile iron pipe, and the present invention efficiently solves T-shaped ductile iron pipe in the big soil environment of the temperature difference
Cause T-shaped ductile iron pipe internal structure to be destroyed because expanding with heat and contract with cold, lose original ability, it is impossible to ensure the water quality and corrosion resistant of water
Corrosion.
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, spheroidal graphite cast-iron body, 2, bellmouth, 3, groove, 4, liner cement layer, 5, cast iron body layer, 5, inorganic heat preservation sand
Pulp layer, 6, external protection, 7, corrosion-resistant coating.
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 ductile iron pipe for adapting to Different climate, including spheroidal graphite cast-iron body 1, spheroidal graphite
The two ends of cast iron body 1 are provided with bellmouth 2, and bellmouth 2 is internally provided with some grooves 3, and the inside outermost of spheroidal graphite cast-iron body 1 is set
There is external protection 7, the lower section of external protection 7 is provided with inorganic heat insulation mortar layer 6, and the lower section of inorganic heat insulation mortar layer 6 is provided with cast iron
Body layer 5, the lower section of cast iron body layer 5 is provided with inside liner cement layer 4, spheroidal graphite cast-iron body 1 most inner side and is provided with anticorrosion
Layer 8.
Inorganic heat insulation mortar layer 6 and liner cement layer 4 are all the inside packed layer of spheroidal graphite cast-iron body 1, internal packed layer
The erosion of ductile iron pipe inside and outside is prevented from, prevents destructurized, original effect, the thickness of liner cement layer 4 is lost
For 3-10mm, suitable thickness can effectively protect water quality and reduce the loss of water, and the thickness of inorganic heat insulation mortar layer 6 is about 3-
5mm, suitable thickness ensure that the heat-insulation and heat-preservation ability and ageing-resistant ability of spheroidal graphite cast-iron body 1, and the interior diameter of bellmouth 2 is big
In the diameter of spheroidal graphite cast-iron body 1, it is easy to the installation with ductile iron pipe.
First, the most external of spheroidal graphite cast-iron body 1 is external protection 7, the various erosions that can effectively completely cut off in soil, spheroidal graphite
The penetralia of cast iron body 1 is corrosion-resistant coating 8, it is possible to increase to the corrosion resistance of soda acid composition in water, liner cement layer 4 and nothing
Machine heat-insulation mortar bed 6 is internal packed layer, and liner cement layer 4 ensure that water quality and reduce the loss of water, inorganic heat insulation mortar
Layer 6 heat-insulation and heat-preservation and can improve resistance to ag(e)ing, and cast iron body layer 5 is intermediate layer, supports ductile iron pipe, with certain strong
Degree and toughness.
Beneficial effects of the present invention：Inorganic heat insulation mortar layer can effective insulation and ageing-resistant, effectively prevent T-shaped
Expanding with heat and contract with cold for ductile iron pipe is big, easy aging and unsuitable shortcoming sunkissed for a long time, and liner cement layer can be protected
Water quality, reduces the loss of flood peak, improves the service life of T-shaped ductile iron pipe, and corrosion-resistant coating can be improved to the soda acid in sewage
The corrosion resistance of composition, external protection can protect cast iron body layer to be embedded in erosion suffered under soil for a long time, further
Improve the corrosion resistance of T-shaped ductile iron pipe, the present invention efficiently solve T-shaped ductile iron pipe the big soil environment of the temperature difference because
Expanding with heat and contract with cold causes T-shaped ductile iron pipe internal structure to be destroyed, and loses original ability, it is impossible to ensure the water quality of water and corrosion-resistant
Property.
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 ductile iron pipe for adapting to Different climate, including spheroidal graphite cast-iron body（1）, it is characterised in that：The spheroidal graphite
Cast iron body（1）Two ends are provided with bellmouth（2）, the bellmouth（2）It is internally provided with some grooves（3）, the ductile iron pipe
Body（1）Internal outermost is provided with external protection（7）, the external protection（7）Lower section is provided with inorganic heat insulation mortar layer（6）,
The inorganic heat insulation mortar layer（6）Lower section is provided with cast iron body layer（5）, the cast iron body layer（5）Lower section is provided with liner
Cement layer（4）, the spheroidal graphite cast-iron body（1）Internal most inner side is provided with corrosion-resistant coating（8）.
2. a kind of ductile iron pipe for adapting to Different climate according to claim 1, it is characterised in that：The inorganic guarantor
Warm screed（6）With the liner cement layer（4）All it is the spheroidal graphite cast-iron body（1）Inside packed layer.
3. a kind of ductile iron pipe for adapting to Different climate according to claim 1, it is characterised in that：The liner water
Mud layer（4）Thickness be 3-10mm.
4. a kind of ductile iron pipe for adapting to Different climate according to claim 1, it is characterised in that：The inorganic guarantor
Warm screed（6）Thickness be about 3-5mm.
5. a kind of ductile iron pipe for adapting to Different climate according to claim 1, it is characterised in that：The bellmouth
（2）Interior diameter be more than the spheroidal graphite cast-iron body（1）Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285451.8A CN106949342A (en) | 2017-04-27 | 2017-04-27 | A kind of ductile iron pipe for adapting to Different climate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285451.8A CN106949342A (en) | 2017-04-27 | 2017-04-27 | A kind of ductile iron pipe for adapting to Different climate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949342A true CN106949342A (en) | 2017-07-14 |
Family
ID=59477580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710285451.8A Withdrawn CN106949342A (en) | 2017-04-27 | 2017-04-27 | A kind of ductile iron pipe for adapting to Different climate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949342A (en) |
-
2017
- 2017-04-27 CN CN201710285451.8A patent/CN106949342A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |
|
| WW01 | Invention patent application withdrawn after publication |