CN210141390U - High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage - Google Patents
High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage Download PDFInfo
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- CN210141390U CN210141390U CN201920827528.4U CN201920827528U CN210141390U CN 210141390 U CN210141390 U CN 210141390U CN 201920827528 U CN201920827528 U CN 201920827528U CN 210141390 U CN210141390 U CN 210141390U
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Abstract
The utility model discloses a municipal administration blowdown, high-modulus polypropylene double-walled bellows for drainage, including the tubular product body, the tubular product body includes that tubular product inlayer and tubular product are outer, the outer wall of tubular product is the annular wave structure who sets up along tubular product body length direction, the tubular product inlayer with be provided with the rubber layer that has higher tensile strength between the tubular product skin, tubular product inlayer inner wall still is provided with the coating that the coefficient of viscosity is little, wave structure includes interconnect's convex part and convex concave part, the rubber layer is tough silastic-layer, and its thickness is 1~2 millimeters, the coating is the organosilicon coating. The tough silicone rubber can still play a role in draining sewage and water when the double-wall corrugated pipe is broken, so that buffering time is reserved for pipeline repair, and the tough silicone rubber has a damping and buffering effect, so that the pipeline is more durable; the organic silicon coating is arranged, so that the inner wall of the pipeline is smooth, and the blockage is reduced.
Description
Technical Field
The utility model belongs to the tubular product field relates to a plastic tubing, in particular to high-modulus polypropylene double-wall corrugated pipe is used in municipal administration blowdown, drainage.
Background
In recent years, the rapid urbanization of China continuously expands the municipal construction scale and accelerates the treatment of water pollution, a sewage discharge and drainage system is used as an important infrastructure of a city, the effect of ensuring the normal operation of the city and the safety of the city is increasingly obvious, the requirement of the urban drainage facility is rapidly increased, and a reasonable drainage pipe becomes an important component of the drainage system. The high-modulus polypropylene (PP-HM) double-wall corrugated pipe has higher flexural modulus, flexibility and elasticity, can bear stratum movement, can resist uneven ground settlement, gradually replaces other traditional pipelines such as metal, cement and the like, is very fast in development and has good market prospect.
Chinese patent CN206929454U discloses a high modulus PP-HM double-wall corrugated pipe, the inner wall of the inner layer of the pipe is provided with an antibacterial layer, the outer wall of the outer layer of the pipe is provided with a glass flake resin layer, and a glass fiber mesh layer is further arranged between the inner layer of the pipe and the outer layer of the pipe. However, compared with the traditional double-wall corrugated pipe, the practical double-wall corrugated pipe has no essential difference, has the risk of fracture and breakage, can leak water immediately after fracture, and is very easy to block due to the fact that the sewage discharge pipe and the water discharge pipe are long in service time in municipal application, and normal use is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a municipal administration blowdown, high-modulus polypropylene double-walled bellows for drainage have good pliability, elasticity, can prevent that debris from piling up the jam in the pipe to still can normally drain after breaking.
In order to realize the purpose, the technical scheme of the utility model is that: the high-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage comprises a pipe body, wherein the pipe body comprises a pipe inner layer and a pipe outer layer, the outer wall of the pipe outer layer is of an annular wavy structure arranged along the length direction of the pipe body, a rubber layer with tensile strength larger than or equal to 15Mpa is arranged between the pipe inner layer and the pipe outer layer, the inner wall of the pipe inner layer is also provided with a coating with viscosity coefficient smaller than or equal to 0.1, and the wavy structure comprises circular arc-shaped convex parts and circular arc-shaped concave parts which are connected with each other.
Preferably, the rubber layer is a tough silicone rubber layer, the thickness of the rubber layer is 1-2 mm, the tough silicone rubber layer has high tensile property, when the pipe body breaks, the tough silicone rubber layer can not break, the sewage discharge and drainage functions of the pipe can be still realized, the tough silicone rubber layer is high in flexibility, good in rebound resilience, corrosion-resistant, ageing-resistant and long in service life, and can play a certain damping and buffering role, so that the pipe body is not easy to damage.
Preferably, the coating is a silicone coating, the surface viscosity coefficient of the silicone coating is small, retention and accumulation of impurities in the pipe can be avoided, and pipeline blockage can be effectively prevented, the silicone coating further has high oxidation resistance and corrosion resistance and long service life, and the silicone coating further has excellent sealing and bonding properties, so that when the pipe body is connected through hot melting or electric melting, the connection strength and the sealing property can be enhanced.
Preferably, the arc angles of the arc-shaped convex parts and the arc angles of the arc-shaped concave parts are equal, the value of α is 120-180 degrees, and compared with a traditional wave structure, the arc-shaped convex parts and the arc-shaped concave parts are stressed more uniformly, the buffering effect is better, and the arc-shaped convex parts and the arc-shaped concave parts are not easy to damage.
Preferably, the inner layer of the pipe is a PP-R inner layer or a PP-RCT inner layer, and the pipe has the advantages of high bending modulus, high flexibility and elasticity, difficulty in damage and long service life.
Preferably, the outer layer of the pipe is a PP-R inner layer or a PP-RCT inner layer, and the pipe has the advantages of high bending modulus, high flexibility and elasticity, difficulty in damage and long service life.
Preferably, the pipe bodies are connected through hot melting, the operation is simple, the connection is firm, and the sealing performance is good.
The beneficial effects of the utility model are that:
1. the tough silicone rubber is arranged, so that the double-wall corrugated pipe can still play a role in sewage discharge and drainage when the double-wall corrugated pipe is broken, buffer time is reserved for pipeline repair, and the damage of water seepage to the surrounding environment is prevented;
2. the arranged tough silicone rubber has the damping and buffering effects, so that the strength of the pipe body is increased to a certain extent, and the pipeline is more durable;
3. the inner wall of the double-wall corrugated pipe is provided with the organic silicon coating, so that the inner wall of the pipeline is smooth, and sundries are prevented from being accumulated and blocked in the pipeline;
4. the organic silicon coating has excellent sealing performance and adhesion performance, so that the hot melting connection between pipelines is firmer.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a partial enlarged view of an embodiment of the present invention;
the items in the figure are respectively 1 inner layer of the pipe, 2 outer layer of the pipe, 3 rubber layer, 4 coating, 5 convex part, 6 concave part and α arc angle.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the high modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage comprises a pipe body, wherein the pipe body comprises a pipe inner layer 1 and a pipe outer layer 2, the outer wall of the pipe outer layer 2 is an annular wavy structure arranged along the length direction of the pipe body, a rubber layer 3 with tensile strength greater than or equal to 15Mpa is arranged between the pipe inner layer 1 and the pipe outer layer 2, the inner wall of the pipe inner layer 1 is also provided with a coating 4 with viscosity coefficient less than or equal to 0.1, and the wavy structure comprises circular arc-shaped convex parts 5 and circular arc-shaped concave parts 6 which are connected with each other.
The rubber layer 3 is a tough silicone rubber layer, the thickness of the rubber layer is 1-2 mm, the tough silicone rubber layer has high tensile property, when the pipe body breaks, the tough silicone rubber layer can not break, the sewage discharge and drainage functions of the pipe can be still achieved, the tough silicone rubber layer is high in flexibility, good in rebound resilience, corrosion-resistant, anti-aging and long in service life, and can play a certain damping and buffering role, so that the pipe body is not easy to damage.
As shown in fig. 2, the arc angles of the arc-shaped convex portions 5 and the arc-shaped concave portions 6 are equal, and are α degrees, which is 120-180 degrees, preferably 150 degrees in this embodiment, and compared with the conventional wave structure, the arc-shaped convex portions and the arc-shaped concave portions are more uniformly stressed, have a better buffering effect, and are less prone to damage.
The inner layer 1 of the pipe is a PP-R inner layer or a PP-RCT inner layer, and the PP-R inner layer is preferred in the embodiment, so that the pipe has high bending modulus, high flexibility and elasticity, is not easy to damage and has long service life.
The outer layer 2 of the pipe is a PP-R inner layer or a PP-RCT inner layer, and is preferably a PP-R outer layer in the embodiment, so that the pipe has the advantages of high bending modulus, high flexibility and elasticity, difficulty in damage and long service life.
In this embodiment, through hot melt connection, easy operation, firm in connection and leakproofness are good between the tubular product body.
Claims (7)
1. Municipal administration blowdown, drainage are with high-modulus polypropylene double-walled bellows, including the tubular product body, the tubular product body includes tubular product inlayer and tubular product skin, the outer wall of tubular product is the annular wave structure who sets up along tubular product body length direction, its characterized in that: the pipe comprises a pipe inner layer and a pipe outer layer, wherein a rubber layer with high tensile strength larger than or equal to 15Mpa is arranged between the pipe inner layer and the pipe outer layer, a coating with viscosity coefficient smaller than or equal to 0.1 is further arranged on the inner wall of the pipe inner layer, and the wavy structure comprises circular arc-shaped convex parts and circular arc-shaped concave parts which are connected with each other.
2. The high modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage according to claim 1, wherein the arc angles of the arc-shaped convex part and the arc-shaped concave part are equal, and the value of α is 120-180 degrees.
3. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1 or 2, wherein: the rubber layer is a tough silicone rubber layer, and the thickness of the rubber layer is 1-2 mm.
4. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1 or 2, wherein: the coating is an organosilicon coating.
5. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1 or 2, wherein: the inner layer of the pipe is a PP-R inner layer or a PP-RCT inner layer.
6. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1 or 2, wherein: the outer layer of the pipe is a PP-R inner layer or a PP-RCT inner layer.
7. The high modulus polypropylene double-wall corrugated pipe for municipal sewage drainage and drainage according to claim 1 or 2, wherein: the pipe bodies are connected through hot melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827528.4U CN210141390U (en) | 2019-06-04 | 2019-06-04 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827528.4U CN210141390U (en) | 2019-06-04 | 2019-06-04 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
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| CN210141390U true CN210141390U (en) | 2020-03-13 |
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| CN201920827528.4U Active CN210141390U (en) | 2019-06-04 | 2019-06-04 | High-modulus polypropylene double-wall corrugated pipe for municipal sewage and drainage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081245A (en) * | 2019-06-04 | 2019-08-02 | 福建亚通新材料科技股份有限公司 | Municipal blowdown, draining high modulus polypropylene double-wall corrugated pipe |
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2019
- 2019-06-04 CN CN201920827528.4U patent/CN210141390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081245A (en) * | 2019-06-04 | 2019-08-02 | 福建亚通新材料科技股份有限公司 | Municipal blowdown, draining high modulus polypropylene double-wall corrugated pipe |
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