CN110345315A - A kind of anticorrosion pipeline and its forming method - Google Patents
A kind of anticorrosion pipeline and its forming method Download PDFInfo
- Publication number
- CN110345315A CN110345315A CN201910590412.8A CN201910590412A CN110345315A CN 110345315 A CN110345315 A CN 110345315A CN 201910590412 A CN201910590412 A CN 201910590412A CN 110345315 A CN110345315 A CN 110345315A
- Authority
- CN
- China
- Prior art keywords
- inner tube
- epoxy resin
- glass fibre
- composite layer
- pipeline
- 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.)
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/566—Winding and joining, e.g. winding spirally for making tubular articles followed by compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
- B29C53/8041—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
- B29C53/8066—Impregnating
- B29C53/8075—Impregnating on the forming surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/82—Cores or mandrels
- B29C53/821—Mandrels especially adapted for winding and joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
- B29C53/845—Heating or cooling especially adapted for winding and joining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of anticorrosion pipeline and its forming method, anticorrosion pipeline includes inner tube and composite layer, and the composite layer prestressing force is wound in the outside of inner tube；The composite layer includes glass fibre and epoxy resin, and glass fibre is infiltrated on epoxy resin and by the outer circumferential of the glass fiber winding containing epoxy resin to inner tube.A kind of anticorrosion pipeline and its forming method provided by the invention, suitable for Wet Limestone Desulfurization system, its is structurally reasonable, using reliable, it is widely used in the pipeline that lime stone slurry flows through, effectively prevent the corrosion of pipeline, simultaneously, the intensity that ensure that pipeline extends the service life of pipeline in Wet Limestone Desulfurization system, improves the stability of wet desulfurization system operation.
Description
Technical field
The invention belongs to smoke-gas wet desulfurization technical field, it is related to a kind of anticorrosion pipeline and its forming method.
Background technique
It is coal-fired thermal power generation that firepower electrical plant, which is a kind of main generation mode, and burning of coal, which can generate, largely to contain hazardous substance
Flue gas, such as sulfur dioxide.With the development of power industry, sulfur dioxide gets worse the pollution of environment.In order to eliminate ring
Border pollution, has generallyd use Wet Limestone Desulfurization technology, technology desulfuration efficiency with higher in power plant.When operation,
Agstone is reacted with the sulfur dioxide in flue gas in desulfurization reaction tower, and in flue gas about 90% sulfur dioxide is eliminated,
To generate the gypsum slurries that moisture content is 80%.
In Wet Limestone Desulfurization system, a large amount of gypsum slurries can be generated, contain a large amount of particle in gypsum slurries,
The wearability and corrosion resistance of common pipeline be not strong, and service life is extreme, especially supplies in thick plaster slurry pump intake, lime stone
Slurry is back to the pipeline of limestone slurry liquid case top position, easily excessive wear occurs and causes pipe leakage, seriously affects
The even running of Wet Limestone Desulfurization system.
Therefore, it needs to design a kind of anticorrosion pipeline and its forming method, solves.
Summary of the invention
The purpose of the present invention is solving partial technical problems existing in the prior art at least to some extent, one provided
Kind of anticorrosion pipeline and its forming method are suitable for Wet Limestone Desulfurization system, structurally reasonable, using reliable, answer extensively
For the pipeline that lime stone slurry flows through, it is effectively prevent the corrosion of pipeline, meanwhile, it ensure that the intensity of pipeline, extend lime
The service life of pipeline in stone wet desulfurization system improves the stability of wet desulfurization system operation, has good popularization
Value.
In order to solve the above technical problems, a kind of anticorrosion pipeline provided by the invention comprising inner tube and composite layer,
The composite layer prestressing force is wound in the outside of inner tube；The composite layer includes glass fibre and epoxy resin, glass
Glass fiber is infiltrated on epoxy resin and by the outer circumferential of the glass fiber winding containing epoxy resin to inner tube.
In some embodiments, the composite layer further includes curing agent, and the weight ratio with epoxy resin is 1:10.
In some embodiments, the glass fibre prestressing force containing epoxy resin is wound on the outside of inner tube, pre- to answer
Power is not more than 50Mpa.
In some embodiments, the glass fibre applies the prestressing force being wound in inner tube in a manner of successively successively decreasing,
The glass layer being wound on the outside of inner tube has Floor 12, and the prestressing force of first layer glass fibre is 45Mpa.
In some embodiments, the glass fibre circumferential direction is wound in the outer circumferential of inner tube, and the winding angle is not more than
15°。
In some embodiments, the glass fiber winding containing epoxy resin to inner tube forms glass fibre composite wood
After material, by rotating curing molding, the solidification temperature is 60 DEG C, curing time 120min.
In some embodiments, the glass fibre accounts for the volume ratio of composite layer not less than 80%.
In some embodiments, the thickness of said inner tube and composite layer ratio is 1:1.2.
In some embodiments, said inner tube is 316L stainless steel.
The invention also discloses a kind of forming methods of anticorrosion pipeline simultaneously comprising following steps:
Inner tube is fixed on wind by S1 by internal expanding mandrel, and wind drives inner tube rotation；
Glass fibre, is overlapped in the end of inner tube by S2, and glass fibre is infiltrated on epoxy resin and by the glass containing epoxy resin
Glass fiber is wound to the outer circumferential of inner tube；
The component that inner tube and composite layer are formed is placed in solidification equipment and solidifies by S3；
S4 removes internal expanding mandrel.
The invention has the advantages that:
A kind of anticorrosion pipeline and its forming method provided by the invention, are suitable for Wet Limestone Desulfurization system, and structure is closed
Reason is widely used in the pipeline that lime stone slurry flows through, is effectively prevent the corrosion of pipeline using reliable, meanwhile, it ensure that pipeline
Intensity, extend the service life of pipeline in Wet Limestone Desulfurization system, improve wet desulfurization system operation stabilization
Property, there is good promotional value.
Detailed description of the invention
It will be apparent and be easier reason by made detailed description, above-mentioned advantage of the invention in conjunction with the following drawings
Solution, these attached drawings are only schematical, are not intended to limit the present invention, in which:
Fig. 1 is a kind of structural schematic diagram of anticorrosion pipeline of the present invention；
Fig. 2 is the schematic diagram of each layer prestress application of composite layer of the present invention；
Fig. 3 is the structural schematic diagram of the wind of the present invention；
Fig. 4 is the schematic diagram of the glass fiber winding of the present invention.
In attached drawing, component representated by each label is as follows:
10- inner tube；20- composite layer；30- scroll chuck；40- tailstock；50- moving trolley；60- glass fibre volume；70- glue
Liquid thermostat；80- fabric wheel；100- wind.
Specific embodiment
Fig. 1 is the accompanying drawings of a kind of herein described anticorrosion pipeline and its forming method, below with reference to specific reality
Example and attached drawing are applied, the present invention is described in detail.
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
Be it is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the claim of this application book and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include using any obvious to making for the embodiment recorded herein
The technical solution of substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating design of the invention, it is schematically indicated the shape of each section
And its correlation.It note that for the ease of clearly showing the structure of each component of the embodiment of the present invention, between each attached drawing
Do not drawn according to identical ratio.Identical reference marker is for indicating identical part.
A kind of structural schematic diagram of herein described anticorrosion pipeline, as shown in Figure 1 comprising inner tube 10 and composite material
Layer 20,20 prestressing force of composite layer is wound in the outside of inner tube 10；The composite layer 20 include glass fibre and
Epoxy resin, glass fibre be infiltrated on epoxy resin and by the glass fiber winding containing epoxy resin to inner tube 10 week outward
Side.
As an embodiment of the present invention, the wearability with super strength of inner tube 10 can be stainless steel, resistance to
One of hot steel, abrasion-resistant stee can be such as potassium steel, such as 60Mn, ZGMn13；Inner tube 10 or 316L stainless steel, it is interior
The inner wall of pipe 10 contacts with the particle in gypsum slurries and hardly happens or seldom wear.
As another embodiment of the invention, the composite layer 20 further includes curing agent, with epoxy resin
Weight ratio is 1:10.Epoxy resin and curing agent can be in liquid condition at normal temperature, and the glass fibre that winding uses in this way can
To infiltrate in the composition of epoxy resin and curing agent, in winding process, composition is laid on inner tube 10 by glass fibre
Peripheral side；After the composite layer that epoxy resin, curing agent and the glass fibre in 10 outside of inner tube are formed is Wrapping formed, need
Curing process increases the hardness of composite layer 20.Composite layer tool has good corrosion resistance, and can be suitable for
Wet Limestone Desulfurization.
In the present invention, the glass fibre prestressing force containing epoxy resin is wound in 10 outside of inner tube, and prestressing force is not
The intensity of anticorrosion pipeline can be effectively improved, limestone wet-process is met using with prestressed Wet Winding Process greater than 50Mpa
The intensity requirement of pipeline in desulphurization system.
In some embodiments, the glass fibre applies be wound in inner tube 10 pre- in a manner of successively successively decreasing and answers
Power, the glass layer for being wound in 10 outside of inner tube have Floor 12, and the prestressing force of first layer glass fibre is 45Mpa.?
Fig. 2 shows each layer of the prestressing force situations during the winding process of composite layer 20, wind according to prestressing force shown in Fig. 2,
It can guarantee the stability of composite layer performance.It is understood that the number of plies of composite layer 20 and corresponding prestressing force
It is not limited to this, 8 layers, 10 layers or 16 layers can also be wound in the outside of inner tube 10, as long as the prestressing force that glass fibre applies
Successively successively decreases and meet intensity requirement.
As an embodiment of the present invention, the glass fibre circumferential direction is wound in the outer circumferential of inner tube 10, described to twine
It is not more than 15 ° (Fig. 4 is shown) around angle θ.Preferably, the winding angle is 13 °, lays glass fibre, glass according to this winding angle
The careful outside for being laid on inner tube 10 of glass fiber, advantageously forms good composite layer, that is, ensure that good wear-resisting
Property.
In invention, the glass fiber winding containing epoxy resin to inner tube 10 forms glass fiber compound material
Afterwards, by rotating curing molding, the solidification temperature is 60 DEG C, curing time 120min.Composite material outside inside and outside 10
After the completion of 20 winding of layer, it is in liquid under normal temperature state, the temperature higher than room temperature is needed to consolidate composite layer
Change, to form composite layer intact, with some strength, by 60 DEG C of solidification temperatures and the curing time of 120min,
20 curing molding of composite layer forms anti-corrosion layer.
As an embodiment of the present invention, the glass fibre accounts for the volume ratio of composite layer 20 not less than 80%.It is excellent
Selection of land, the volume ratio that the glass fibre accounts for composite layer 20 is 85%, and the anticorrosion pipeline intensity formed in this way is higher, resistance to
Corrode more excellent.
In some embodiments, the thickness ratio of said inner tube 10 and composite layer 20 is 1:1.2, due to composite layer
20 have good intensity and corrosion resistance, without configuring thicker line with rubber layer in traditional technology, effectively reduce lime stone
The volume of pipeline in wet desulfurization system, improves the convenience of pipeline construction.As an embodiment of the present invention, described to answer
Condensation material layer 20 with a thickness of 2-5mm, it is preferable that the composite layer 20 with a thickness of 3mm, it is wet to effectively reduce lime stone
The volume of pipeline in method desulphurization system, improves the convenience of pipeline construction.
The invention also discloses a kind of forming methods of anticorrosion pipeline simultaneously comprising following steps:
Inner tube 10 is fixed on wind by S1 by internal expanding mandrel, and wind drives inner tube 10 to rotate；
Specifically, internal expanding mandrel is mounted on to the inner wall of inner tube 10, one end of internal expanding mandrel is fixed on the three of wind 100
On dog chuck 30, as shown in figure 3, its other end is supported by the tailstock 4 of wind 100.Wind in servo motor
Lower rotation is driven, that is, inner tube 10 is driven to rotate；Furthermore wind 100 further includes moving trolley 50, and setting is filled in winding
The side for setting 100 lathe bed, by sliding block be arranged on ball-screw, ball-screw under the drive of another servo motor,
Moving trolley 50 is driven to move along a straight line along ball-screw；It is provided with glass fibre in moving trolley 50 and rolls up 60, glue thermostat
70 and fabric wheel 80, glass fibre volume 60 passes through glue thermostat 70, then the circumferential direction of inner tube 10 is directed to via fabric wheel 80
Outside, as shown in figure 4, moving trolley 50 drives glass fiber along inner tube while inner tube 10 rotates in winding operation process
10 axis direction linear motion, to complete the circumferential winding of glass fibre.Fig. 3 and Fig. 4 is only schematically to wind
Structure be briefly described, it is to be understood that the Wet Winding Process of glass fibre may be implemented in this way.Fig. 4 is
The schematic diagram of glass fiber winding, glass fibre volume 60, glue thermostat 70 and fabric wheel are all disposed in mobile small survey 50.
During the winding process, the rotation speed of inner tube 10 is 80-120rpm, be can be effectively prevented in winding process in this way,
The composition that epoxy resin and curing agent are formed is sputtered onto the side of wind under the action of the centrifugal force and influences inner tube just
Often winding operation.
Glass fibre, is overlapped in the end of inner tube 10 by S2, and glass fibre is infiltrated on epoxy resin and will contain asphalt mixtures modified by epoxy resin
The glass fiber winding of rouge is to the outer circumferential of inner tube 10；
Specifically, the composition that epoxy resin and curing agent are formed is placed in a glue thermostat 70, glue constant temperature dress
The outside for setting 70 is provided with thermostat, so that epoxy resin and the composition of curing agent configuration are controlled in steady temperature range
It is interior, to guarantee the stability of the composition properties of configuration, improve the stability of the characteristic for the composite material being wound.
The component that inner tube 10 and composite layer 20 are formed is placed in solidification equipment and solidifies by S3；
Specifically, the composite cure process temperature is 60 DEG C, curing time 120min；Solidifying in order to prevent
The composition of Cheng Zhong, epoxy resin and curing agent configuration can be assembled under the effect of gravity in the downside of inner tube 10, in solidification process
In, inner tube 10 and the needs of composite layer 20 are rotated centered on axis of certain speed around inner tube 10, corrosion-resistant to improve
The composite layer 20 of pipeline external it is relatively uniform.
S4 removes internal expanding mandrel.
Finally, after anticorrosion pipeline curing molding, need to only remove internal expanding mandrel can install and use it is de- in limestone wet-process
In sulphur system, to improve the corrosion resistance of the system pipeline.
Compared with the prior art the shortcomings that and deficiency, a kind of anticorrosion pipeline and its forming method provided by the invention, are fitted
It is structurally reasonable for Wet Limestone Desulfurization system, using reliable, it is widely used in the pipeline that lime stone slurry flows through, has
Effect prevents the corrosion of pipeline, meanwhile, it ensure that the intensity of pipeline, extend the use longevity of pipeline in Wet Limestone Desulfurization system
Life improves the stability of wet desulfurization system operation, has good promotional value.
The present invention is not limited to the above-described embodiments, anyone can obtain other various forms under the inspiration of the present invention
Product, it is all that there is technical side identical or similar to the present application however, make any variation in its shape or structure
Case is within the scope of the present invention.
Claims (10)
1. a kind of anticorrosion pipeline, which is characterized in that including inner tube and composite layer, the composite layer prestressing force winding
In the outside of inner tube；The composite layer includes glass fibre and epoxy resin, and glass fibre is infiltrated on epoxy resin and will
Glass fiber winding containing epoxy resin is to the outer circumferential of inner tube.
2. anticorrosion pipeline according to claim 1, which is characterized in that the composite layer further includes curing agent,
Weight ratio with epoxy resin is 1:10.
3. anticorrosion pipeline according to claim 1, which is characterized in that the glass fibre containing epoxy resin is answered in advance
Power is wound on the outside of inner tube, and prestressing force is not more than 50Mpa.
4. anticorrosion pipeline according to claim 3, which is characterized in that the glass fibre is applied in a manner of successively successively decreasing
Add the prestressing force being wound in inner tube, the glass layer being wound on the outside of inner tube has Floor 12, first layer glass fibre
Prestressing force be 45Mpa.
5. anticorrosion pipeline according to claim 1, which is characterized in that the glass fibre circumferential direction is wound in the week of inner tube
Outward, the winding angle is not more than 15 °.
6. anticorrosion pipeline according to claim 1, which is characterized in that the glass fiber winding containing epoxy resin
After forming glass fiber compound material to inner tube, by rotating curing molding, the solidification temperature is 60 DEG C, and curing time is
120min。
7. anticorrosion pipeline according to claim 1, which is characterized in that the glass fibre accounts for the volume of composite layer
Than being not less than 80%.
8. anticorrosion pipeline according to claim 1, which is characterized in that the thickness of said inner tube and composite layer ratio is
1:1.2。
9. anticorrosion pipeline according to claim 1, which is characterized in that said inner tube is 316L stainless steel.
10. a kind of forming method of anticorrosion pipeline, which comprises the following steps:
Inner tube is fixed on wind by S1 by internal expanding mandrel, and wind drives inner tube rotation；
Glass fibre, is overlapped in the end of inner tube by S2, and glass fibre is infiltrated on epoxy resin and by the glass containing epoxy resin
Glass fiber is wound to the outer circumferential of inner tube；
The component that inner tube and composite layer are formed is placed in solidification equipment and solidifies by S3；
S4 removes internal expanding mandrel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590412.8A CN110345315A (en) | 2019-07-02 | 2019-07-02 | A kind of anticorrosion pipeline and its forming method |
| CN201910994159.2A CN110671543A (en) | 2019-07-02 | 2019-10-18 | Corrosion-resistant pipeline and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590412.8A CN110345315A (en) | 2019-07-02 | 2019-07-02 | A kind of anticorrosion pipeline and its forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345315A true CN110345315A (en) | 2019-10-18 |
Family
ID=68177270
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910590412.8A Withdrawn CN110345315A (en) | 2019-07-02 | 2019-07-02 | A kind of anticorrosion pipeline and its forming method |
| CN201910994159.2A Pending CN110671543A (en) | 2019-07-02 | 2019-10-18 | Corrosion-resistant pipeline and forming method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910994159.2A Pending CN110671543A (en) | 2019-07-02 | 2019-10-18 | Corrosion-resistant pipeline and forming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110345315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571872A (en) * | 2020-12-11 | 2021-03-30 | 中国人民解放军海军工程大学 | Long-acting corrosion-resistant composite seawater pipeline |
| CN113639140A (en) * | 2021-07-21 | 2021-11-12 | 上海外高桥造船有限公司 | Anti-leakage pipeline for seawater system and ship |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500856B (en) * | 2014-12-01 | 2017-02-01 | 武汉理工大学 | High-ductility concrete hollow pipe and manufacturing method thereof |
| CN108150557A (en) * | 2017-11-17 | 2018-06-12 | 重庆传动轴股份有限公司 | A kind of carbon fiber driving shaft |
| CN108216655A (en) * | 2017-12-17 | 2018-06-29 | 四川航空工业川西机器有限责任公司 | A kind of aircraft straight-bar type is by oily feeler lever |
| CN109707917A (en) * | 2018-12-17 | 2019-05-03 | 巢湖鹏远金属焊管有限公司 | A kind of low flow resistance composite glass steel pipe and its processing method |
| CN213871480U (en) * | 2019-07-02 | 2021-08-03 | 国能龙源环保有限公司 | Corrosion-resistant pipeline |
-
2019
- 2019-07-02 CN CN201910590412.8A patent/CN110345315A/en not_active Withdrawn
- 2019-10-18 CN CN201910994159.2A patent/CN110671543A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571872A (en) * | 2020-12-11 | 2021-03-30 | 中国人民解放军海军工程大学 | Long-acting corrosion-resistant composite seawater pipeline |
| CN113639140A (en) * | 2021-07-21 | 2021-11-12 | 上海外高桥造船有限公司 | Anti-leakage pipeline for seawater system and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110671543A (en) | 2020-01-10 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191018 |
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| WW01 | Invention patent application withdrawn after publication |