CN202660078U - Embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention - Google Patents
Embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention Download PDFInfo
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- CN202660078U CN202660078U CN 201220235419 CN201220235419U CN202660078U CN 202660078 U CN202660078 U CN 202660078U CN 201220235419 CN201220235419 CN 201220235419 CN 201220235419 U CN201220235419 U CN 201220235419U CN 202660078 U CN202660078 U CN 202660078U
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- prestressed concrete
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- galvanizing
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Abstract
The utility model discloses an embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention. The embedded prestressed concrete cylinder pipe comprises an inner concrete layer, a steel cylinder, an outer concrete layer and an outer cement mortar protection layer which are sequentially arranged from inside to outside, wherein hot zinc immersion coating layers are arranged on both the internal surface and external surface of the steel cylinder, prestressed steel wires are wound outside the outer concrete layer, and an epoxy coal tar corrosion prevention layer is arranged outside the outer cement mortar protection layer. The embedded prestressed concrete cylinder pipe is very simple in overall structure, scientific and reasonable in design and simple in manufacturing process and has good durability and corrosion resistance. The embedded prestressed concrete cylinder pipe with the hot zinc immersion steel cylinder and the outer epoxy coal tar corrosion prevention layer which are combined is higher in innovation.
Description
Technical field
The utility model belongs to the prestressed concrete member field, especially a kind of galvanizing and epoxide coal bituminous anticorrosion in conjunction with embed-type Prestressed concrete cylinder pipe.
Background technique
At present, Prestressed concrete cylinder pipe (being called for short PCCP) is a kind of novel rigid pressure tubing.It is the strong concrete tube core winding reinforcement wire with steel cylinder; spray is with cement mortar protective course; adopt steel bell and spigot and be welded into one with steel cylinder; the fluted O-ring seal of joint socket band has formed the flexible joint of sliding type cushion rubber; be the composite structure that steel plate, concrete, High Tensile Steel Wire and slush different materials form, have steel and concrete characteristic separately.Prestressed concrete cylinder pipe has and bears the characteristics such as interior external pressure is high, joint tighness good, shock resistance is strong, it is convenient and swift to execute, antiseptic property good, easy to maintenance, paid close attention to by engineering circles, be mainly used in long distance water transfer main line, pressure inverted-siphon, town water supply engineering, the waterline of pressure, electric power plant circulating water engineering pipeline, pressure blowdown main etc. are arranged.Compare with tubing in the past, have applied widely, the advantage such as the economic life is long, anti-seismic performance good, easy for installation, the operation expenditure is low, substantially water-tight.Prestressed concrete cylinder pipe can be divided into two kinds from structural type: a kind of is lined Prestressed concrete cylinder pipe (PCCPL), namely at steel cylinder inwall formation of concrete, the direct winding ring orientation prestress steel wire in steel cylinder outside, then gunite protective layer and the pipeline made; A kind of is embed-type Prestressed concrete cylinder pipe (PCCPE), is steel cylinder is embedded in tube core concrete the inside, then gunite protective layer after the tube core outer walls of concrete is twined the ring orientation prestress steel wire.
But as the concrete member product that is embedded in the edatope; in edatope; if Prestressed concrete cylinder pipe is not taked effective protective measure; prolongation along with service time; mortar cover and concrete layer in the corrosive medium intrusion Prestressed concrete cylinder pipe in the edatope of Prestressed concrete cylinder pipe outer wall and in the interior aqueous medium of pipe; arrive steel wire and steel cylinder surface; steel wire and steel cylinder will electrochemical corrosions so; and then can cause the corrosion failure of steel wire and steel cylinder; perforation occurs to be revealed even the booster phenomenon; can cause a hidden trouble to the safe operation of pipe-line system; the operational reliability of direct threat tube system; wherein the etching problem of reinforcement wire and steel cylinder is the principal element that affects the structure durability; if breakage occurs because of corrosion in steel wire and steel cylinder; will directly cause the corrosion failure of Prestressed concrete cylinder pipe, thereby affect the safe operation of whole pipe-line system.This shows and adopt anti-corrosion measure very necessary to Prestressed concrete cylinder pipe.
There is following shortcoming in present Prestressed concrete cylinder pipe technology:
The cover coat processing is not carried out on domestic Prestressed concrete cylinder pipe surface at present; when corroding concrete surface, corrosive medium can not effectively protect steel cylinder and concrete outer surface; and then can cause corrosive medium to corrode steel cylinder and steel wire and cause corrosion failure, bring hidden danger for the safe operation of pipeline.
Summary of the invention
The purpose of this utility model is not carry out the technical deficiency that cover coat is processed for overcoming above-mentioned existing embed-type Prestressed concrete cylinder pipe steel cylinder and concrete pipe outer surface, the embed-type Prestressed concrete cylinder pipe that provides a kind of steel cylinder galvanizing simple in structure, a kind of to be combined with outer epoxy coal tar pitch coating can effectively prolong working life of Prestressed concrete cylinder pipe.
For achieving the above object, the utility model adopts following technical proposals:
A kind of galvanizing and epoxide coal bituminous anticorrosion in conjunction with embed-type Prestressed concrete cylinder pipe; comprise the internal layer concrete layer, steel cylinder, outer concrete layer, the outer cement mortar protective course that set gradually from inside to outside; be equipped with the galvanizing coating on the inner and outer surface of described steel cylinder; outer concrete layer outside is wound with reinforcement wire, and described outer cement mortar protective course outside is provided with epoxy coal tar pitch coating.
Described galvanizing coating adopts the method for steel cylinder overall galvanizing to be prepared from the steel cylinder inner and outer surface.
The direct application of described epoxy coal tar pitch coating is on outer cement mortar protective course.
Coating can be used as together important defence line, Effective Raise Prestressed concrete cylinder pipe corrosion resistance, greatly prolong original life-span of Prestressed concrete cylinder pipe, so the Prestressed concrete cylinder pipe process for treating surface, especially cladding technique extremely is necessary.
The utlity model has following beneficial effect:
1, the method for steel cylinder overall galvanizing of the present utility model is prepared with the galvanizing coating at the steel cylinder inner and outer surface; epoxy coal tar pitch coating directly is coated with and is contained on the cement mortar protective course; carry out two protections; increased the important barrier of twice for the antiseptic property of embed-type Prestressed concrete cylinder pipe improves, it is convenient to use.
2, the utility model overall structure is very simple, design science is reasonable, have good durability, corrosion resistance, and manufacturing process is simple, the embed-type Prestressed concrete cylinder pipe that a kind of steel cylinder galvanizing is combined with outer epoxy coal tar pitch coating is the higher embed-type Prestressed concrete cylinder pipe of a kind of novelty.
Description of drawings
Fig. 1 is the utility model cross-sectional configuration schematic diagram;
Fig. 2 is transverse cross-sectional view of the present utility model;
1. internal layer concrete layers wherein, 2. steel cylinder, 3. outer concrete layer, 4. galvanizing coating, 5. reinforcement wire, 6. outer cement mortar protective course, 7. epoxy coal tar pitch coating.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, 2; galvanizing and epoxide coal bituminous anticorrosion in conjunction with embed-type Prestressed concrete cylinder pipe; comprise the internal layer concrete layer 1, steel cylinder 2, outer concrete layer 3, the outer cement mortar protective course 6 that set gradually from inside to outside; be equipped with galvanizing coating 4 on the inner and outer surface of described steel cylinder 2; outer concrete layer 3 outside are wound with reinforcement wire 5, and described outer cement mortar protective course 6 outsides are provided with epoxy coal tar pitch coating 7.
Galvanizing coating 4 adopts the method for steel cylinder overall galvanizing to be prepared from the steel cylinder inner and outer surface.
Epoxy coal tar pitch coating 7 direct applications are on outer cement mortar protective course 6.
Although above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. galvanizing and epoxide coal bituminous anticorrosion in conjunction with embed-type Prestressed concrete cylinder pipe; comprise the internal layer concrete layer, steel cylinder, outer concrete layer, the outer cement mortar protective course that set gradually from inside to outside; it is characterized in that; be equipped with the galvanizing coating on the inner and outer surface of described steel cylinder; outer concrete layer outside is wound with reinforcement wire, and described outer cement mortar protective course outside is provided with epoxy coal tar pitch coating.
2. galvanizing as claimed in claim 1 and epoxide coal bituminous anticorrosionly it is characterized in that in conjunction with embed-type Prestressed concrete cylinder pipe, described galvanizing coating adopts the method for steel cylinder overall galvanizing to be prepared from the steel cylinder inner and outer surface.
3. galvanizing as claimed in claim 1 and epoxide coal bituminous anticorrosionly it is characterized in that in conjunction with embed-type Prestressed concrete cylinder pipe, the direct application of described epoxy coal tar pitch coating is on outer cement mortar protective course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235419 CN202660078U (en) | 2012-05-24 | 2012-05-24 | Embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235419 CN202660078U (en) | 2012-05-24 | 2012-05-24 | Embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202660078U true CN202660078U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235419 Expired - Lifetime CN202660078U (en) | 2012-05-24 | 2012-05-24 | Embedded prestressed concrete cylinder pipe with combined hot zinc immersion and epoxy coal tar corrosion prevention |
Country Status (1)
| Country | Link |
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| CN (1) | CN202660078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679051A (en) * | 2012-05-24 | 2012-09-19 | 山东龙泉管道工程股份有限公司 | Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting |
-
2012
- 2012-05-24 CN CN 201220235419 patent/CN202660078U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679051A (en) * | 2012-05-24 | 2012-09-19 | 山东龙泉管道工程股份有限公司 | Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Shengshi water conservancy and Hydropower Engineering Co., Ltd. Assignor: Shandong Longquan Pipeline Engineering Co., Ltd. Contract record no.: 2013370000026 Denomination of utility model: Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting Granted publication date: 20130109 License type: Common License Record date: 20130220 Assignee: Changzhou Longquan Pipeline Engineering Co., Ltd. Assignor: Shandong Longquan Pipeline Engineering Co., Ltd. Contract record no.: 2013370000025 Denomination of utility model: Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting Granted publication date: 20130109 License type: Common License Record date: 20130220 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting Effective date of registration: 20170523 Granted publication date: 20130109 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: 2017990000431 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190723 Granted publication date: 20130109 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: 2017990000431 |
|
| PC01 | Cancellation 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: Embedded type prestressed concrete cylinder pipe combining hot dip galvanizing and epoxy coal tar pitch erosion-resisting Effective date of registration: 20190815 Granted publication date: 20130109 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: Y2019370000011 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |