CN109590190A - A method of prevent pipeline from condensing - Google Patents

A method of prevent pipeline from condensing Download PDF

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Publication number
CN109590190A
CN109590190A CN201811376124.4A CN201811376124A CN109590190A CN 109590190 A CN109590190 A CN 109590190A CN 201811376124 A CN201811376124 A CN 201811376124A CN 109590190 A CN109590190 A CN 109590190A
Authority
CN
China
Prior art keywords
pipeline
hydrophobic
coating
protective layer
hydrophobic material
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.)
Pending
Application number
CN201811376124.4A
Other languages
Chinese (zh)
Inventor
张国新
林鹏
辛建达
孙保平
李松辉
冯玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Institute of Water Resources and Hydropower Research
Original Assignee
China Institute of Water Resources and Hydropower Research
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Institute of Water Resources and Hydropower Research filed Critical China Institute of Water Resources and Hydropower Research
Priority to CN201811376124.4A priority Critical patent/CN109590190A/en
Publication of CN109590190A publication Critical patent/CN109590190A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface

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  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention provides a kind of methods for preventing pipeline from condensing, and belong to pipeline protection technical field.Hydrophobic material is coated in the surface of pipeline by the present invention, forms hydrophobic protective layer on the surface of the pipeline after drying;The contact angle of the hydrophobic material is greater than 170 °.Hydrophobic protective layer promotes hydrophobic effect, guarantees that most water droplets will not be remained in pipe surface, achieve the effect that prevent moisture condensation by increasing pipeline external surface contact angle;And the steam in water and air is smaller with pipe contact area, substantially increases the corrosion resistance of pipeline.

Description

A method of prevent pipeline from condensing
Technical field
The present invention relates to the technical fields of pipeline protection, and in particular to a method of prevent pipeline from condensing.
Background technique
Pipeline is the common components such as water conservancy waterworks, hydraulic power project, oil transportation engineering, when conveying object in pipeline Temperature is lower than environment temperature, and when pipeline be in wet environment, can be in a large amount of condensed waters of pipe surface appearance.Due to aqueduct It is mostly metal product, long-term place easily gets rusty in wet condition, serious to cause pernicious safety accident;And condensed water mistake It mostly can also make that ground, there was dampness in the air, influence staff's operating environment.
The method for preventing pipeline from condensing at present, mainly by being set in pipe surface covering and heat insulating layer or using dehumidifying It is standby, prevent the generation of moisture condensation.Such as " Heating,Ventilating and Air Conditioning HV&AC " the 2nd interim " Taian Shandong hydroenergy storage station of volume 45 in 2015 Underground power house is moist and the analysis and treatment measures of pipeline moisture condensation " it proposes in a text, using nonflammable insulating rubber plastic to portion Branch pipeline is kept the temperature to reduce the condensation of pipe surface appearance, but in order to achieve the effect that anti-condensation, the guarantor of covering Warm layer is thicker, usually the constructional difficulties in 3cm or more, covering, and occupied space is larger.In addition, passing through reduction using dehumidifier Air humidity prevents the method higher cost of moisture condensation, and installation is complicated, and can only reduce the humidity of environment, not can control temperature, The problem of rustiness of pipeline can not fundamentally be prevented.
Although there are difficulty of construction for these methods it can be seen that having the method for preventing pipeline from condensing in the prior art Greatly, at high cost, be difficult to the drawbacks of fundamentally solving metallic conduit problem of rustiness.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for preventing pipeline from condensing, and can be prevented using method provided by the invention Only pipeline gets rusty, and extends the service life of pipeline, and it is easy to operate, cost is relatively low, pollution-free.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of methods for preventing pipeline from condensing, comprising the following steps:
Hydrophobic material is coated in the surface of pipeline, forms hydrophobic protective layer on the surface of the pipeline after drying;It is described The contact angle of hydrophobic material is greater than 170 °;The component of the hydrophobic material includes nano silica.
Preferably, the hydrophobic material includes: ZS-511 Nano self-cleaning coating, the western Lay ZXL-DS nano superhydrophobic painting of son Layer, the easily net super self-cleaning material of star orSuper-hydrophobic superoleophobic nano coating.
Preferably, the temperature of the drying is room temperature;The mode of the drying is naturally dry.
Preferably, the hydrophobic protective layer with a thickness of 5~260 μm.
Preferably, the hydrophobic material is stirred before use.
Preferably, the mode of the coating includes: one or more of spraying, brushing and dip-coating.
Preferably, the pipeline include: drainage pipeline, compressed air pipe, Hydrogen Line, oxygen channel, acetylene pipeline, Heat distribution pipeline, gas pipeline, fuel passage, hypertoxic fluid line, toxic fluid pipeline, soda acid pipeline, boiler tubing, refrigerator pipes Road, the pure feed channel of purification or pure water pipeline.
The present invention provides a kind of methods for preventing pipeline from condensing, and hydrophobic material are coated in the surface of pipeline, after dry Hydrophobic protective layer is formed on the surface of the pipeline;The contact angle of the hydrophobic material is greater than 170 °.Hydrophobic protective layer passes through increasing Big pipeline external surface contact angle, promotes hydrophobic effect, guarantees that most water droplets will not be remained in pipe surface, reaching prevents from tying The effect of dew;And the steam in water and air is smaller with pipe contact area, substantially increases the corrosion resistance of pipeline.
Detailed description of the invention
Fig. 1 is the moisture condensation situation comparison diagram of the embodiment of the present invention 1 and comparative example pipe surface;Wherein, left side is the present invention The moisture condensation situation of 1 pipe surface of embodiment, right side are the moisture condensation situation of comparative example pipe surface.
Specific embodiment
The present invention provides a kind of methods for preventing pipeline from condensing, comprising the following steps:
Hydrophobic material is coated in the surface of pipeline, forms hydrophobic protective layer on the surface of the pipeline after drying;It is described The contact angle of hydrophobic material is greater than 170 °;The component of the hydrophobic material includes nano silica.
In the present invention, the hydrophobic material preferably includes: ZS-511 Nano self-cleaning coating, son it is western Lay ZXL-DS nanometer surpass Hydrophobic coating, the easily net super self-cleaning material of star orSuper-hydrophobic superoleophobic nano coating.
In the present invention, the temperature of the drying is preferably room temperature;The mode of the drying is preferably naturally dry.This hair The bright time to the drying does not have special restriction, and hydrophobic material of being subject to is completely dried;In the present invention, the drying Time is preferably 0.5~2h.
In the present invention, the thickness of the hydrophobic protective layer is preferably 5~260 μm, and more preferably 10~200 μm.
In the present invention, the hydrophobic material is preferably stirred using preceding.The present invention is to the stir process Time and rate there is no special restriction, hydrophobic material can be made to stir evenly.In the present invention, the mixing speed Preferably 40~60r/min, more preferably 50r/min.In the present invention, in the hydrophobic material whipping process, without addition Any auxiliary agent, reduces production cost, reduces the pollution to environment.
In the present invention, the mode of the coating preferably includes one or more of spraying, brushing and dip-coating.The present invention To the spraying, brush and the design parameter of dip-coating does not have special restriction, using spraying well-known to those skilled in the art, It brushes and dip coating manner.Present invention preferably employs air compression spray guns to be sprayed;The air compression spray gun distance pipe The spray distance on road surface is preferably 10~20cm, more preferably 15cm.In an embodiment of the present invention, when the hydrophobic material For CCP002&CCP003-When super-hydrophobic superoleophobic nano coating, it is preferred to use the mode sprayed twice will CCP002&CCP003-Super-hydrophobic superoleophobic nano coating is coated in the surface of pipeline, the ginseng sprayed twice Number is preferred are as follows: first sprays CCP002 priming paint, control air compression spray in pipe surface using the air compression spray gun of 1.5mm bore Distance of the rifle apart from pipe surface is about 15cm, CCP002 priming paint with a thickness of 70~120 μm;It spontaneously dries at normal temperature After 30min, then use instead another 1.5mm bore air compression spray gun spray CCP003 finishing coat on CCP002 priming paint, control It is about 15cm that air, which compresses distance of the spray gun apart from pipe surface, CCP003 finishing coat with a thickness of 70~120 μm, spontaneously dry 2h。
In the present invention, the pipeline preferably includes: drainage pipeline, compressed air pipe, Hydrogen Line, oxygen channel, Acetylene pipeline, heat distribution pipeline, gas pipeline, fuel passage, hypertoxic fluid line, toxic fluid pipeline, soda acid pipeline, boiler tube Road, refrigeration piping, the pure feed channel of purification or pure water pipeline.
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.It is aobvious So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to In the scope of protection of the invention.
Embodiment 1
By CCP002&CCP003-Super-hydrophobic superoleophobic nano coating is stirred under conditions of 50r/min It mixes, CCP002 priming paint is first then sprayed in pipe surface using the air compression spray gun of 1.5mm bore, control air compresses spray gun Distance apart from pipe surface is about 15cm, CCP002 priming paint with a thickness of 70~120 μm;30min is spontaneously dried at normal temperature Afterwards, it then uses the air compression spray gun of another 1.5mm bore instead and spray CCP003 finishing coat on CCP002 priming paint, control air pressure Distance of the contracting spray gun apart from pipe surface is about 15cm, CCP003 finishing coat with a thickness of 70~120 μm, after spontaneously drying 2h, The outer surface of the metallic conduit obtains the hydrophobic protective layer with a thickness of 100~200 μm.
Lead to 8 DEG C of thermostatted water in pipeline, atmospheric temperature locating for pipeline is constant at 25 DEG C, after the 1h time, observation tube The moisture condensation situation on road surface, state is as shown in Fig. 1 left part.
Embodiment 2
ZS-511 Nano self-cleaning coating is stirred under normal temperature conditions, mixing speed 50r/min, then using painting Mode is smeared coated on metallic conduit outer surface, with a thickness of 15~20 μm, after spontaneously drying for 24 hours at normal temperature, in the metal tube The outer surface in road obtains the hydrophobic protective layer with a thickness of 8~10 μm.
The pipeline of hydrophobic protective layer covering is tested for the property, pipe surface anti-condensation effect is similar to Example 1.
Embodiment 3
The easy net super self-cleaning material of star is stirred under normal temperature conditions, mixing speed 50r/min, then using smearing Mode is coated on metallic conduit outer surface, with a thickness of 10~20 μm, after spontaneously drying for 24 hours at normal temperature, in the metallic conduit Outer surface obtain the hydrophobic protective layer with a thickness of 8~15 μm.
The pipeline of hydrophobic protective layer covering is tested for the property, pipe surface anti-condensation effect is similar to Example 1.
Comparative example
Pipeline external surface does not make any coating processing, and 8 DEG C of thermostatted water is led in pipeline, and atmospheric temperature locating for pipeline is permanent 25 DEG C are scheduled on, after the 1h time, observes the moisture condensation situation of pipe surface, state is as shown in Figure 1 on the right portion.
As seen from Figure 1, right side does not spray the pipe surface of hydrophobic material, forms a large amount of condensed water, and model It encloses extensively, quantity is more.And after left side spraying hydrophobic material, the only a little condensation scattered distribution of droplet in surface, quantity is few, explanation It can effectively prevent pipe surface from generating condensed water using anti-condensation method provided by the present application, play the purpose of anti-condensation.
The metallic conduit for the covering hydrophobic protective layer that Examples 1 to 3 obtains is tested for the property, as shown in table 1:
The metallic conduit performance of 1 Examples 1 to 3 of table covering hydrophobic protective layer
As shown in Table 1, the metallic conduit of the covering hydrophobic protective layer obtained using method provided by the invention has excellent Abrasion resistance and corrosion resistance, illustrate effectively pipe surface can either be prevented to generate using anti-condensation method provided by the present application Condensed water, plays the purpose of anti-condensation, but also can be improved the abrasion resistance and corrosion resistance of metallic conduit, extends pipeline Service life, and it is easy to operate, cost is relatively low, pollution-free.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (7)

1. a kind of method for preventing pipeline from condensing, comprising the following steps:
Hydrophobic material is coated in the surface of pipeline, forms hydrophobic protective layer on the surface of the pipeline after drying;It is described hydrophobic The contact angle of material is greater than 170 °;The component of the hydrophobic material includes nano silica.
2. the method according to claim 1, wherein the hydrophobic material include: ZS-511 Nano self-cleaning coating, The western Lay ZXL-DS nano superhydrophobic coating of son, the easily net super self-cleaning material of star orSuper-hydrophobic superoleophobic nano coating.
3. the method according to claim 1, wherein the temperature of the drying is room temperature;The mode of the drying For naturally dry.
4. the method according to claim 1, wherein the hydrophobic protective layer with a thickness of 5~260 μm.
5. method according to claim 1 or 2, which is characterized in that the hydrophobic material is stirred before use.
6. the method according to claim 1, wherein the mode of the coating includes: in spraying, brushing and dip-coating One or more.
7. the method according to claim 1, wherein the pipeline include: drainage pipeline, compressed air pipe, Hydrogen Line, oxygen channel, acetylene pipeline, heat distribution pipeline, gas pipeline, fuel passage, hypertoxic fluid line, toxic fluid pipe Road, soda acid pipeline, boiler tubing, refrigeration piping, the pure feed channel of purification or pure water pipeline.
CN201811376124.4A 2018-11-19 2018-11-19 A method of prevent pipeline from condensing Pending CN109590190A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780815A (en) * 2019-11-07 2021-05-11 青岛海尔特种电冰柜有限公司 Multifunctional air pressure balance valve and refrigerating device using same
CN115651437A (en) * 2022-11-04 2023-01-31 中国长江三峡集团有限公司 Super-hydrophobic material, preparation method thereof and application thereof in drainage pipeline

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167131A (en) * 1996-02-01 1997-12-10 松下电器产业株式会社 Water-repeellent covered film and mfg. method and device and water-repellent paint composition
CN1239128A (en) * 1998-04-27 1999-12-22 松下电器产业株式会社 Water repelling tunicle, its mfg. process and water repelling paint compsn.
CN103725195A (en) * 2013-12-26 2014-04-16 东北石油大学 Novel super-amphiphobic pipeline coating and preparation method thereof
CN105903662A (en) * 2016-04-13 2016-08-31 许继集团有限公司 Material surface modification method, self-cleaning material, fan blade surface modification method and self-cleaning fan blade
CN107474591A (en) * 2017-06-26 2017-12-15 江阴市天邦涂料股份有限公司 Super-hydrophobic nano coating and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167131A (en) * 1996-02-01 1997-12-10 松下电器产业株式会社 Water-repeellent covered film and mfg. method and device and water-repellent paint composition
CN1239128A (en) * 1998-04-27 1999-12-22 松下电器产业株式会社 Water repelling tunicle, its mfg. process and water repelling paint compsn.
CN103725195A (en) * 2013-12-26 2014-04-16 东北石油大学 Novel super-amphiphobic pipeline coating and preparation method thereof
CN105903662A (en) * 2016-04-13 2016-08-31 许继集团有限公司 Material surface modification method, self-cleaning material, fan blade surface modification method and self-cleaning fan blade
CN107474591A (en) * 2017-06-26 2017-12-15 江阴市天邦涂料股份有限公司 Super-hydrophobic nano coating and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780815A (en) * 2019-11-07 2021-05-11 青岛海尔特种电冰柜有限公司 Multifunctional air pressure balance valve and refrigerating device using same
CN112780815B (en) * 2019-11-07 2024-02-09 青岛海尔特种电冰柜有限公司 Multifunctional air pressure balance valve and refrigerating device using same
CN115651437A (en) * 2022-11-04 2023-01-31 中国长江三峡集团有限公司 Super-hydrophobic material, preparation method thereof and application thereof in drainage pipeline
CN115651437B (en) * 2022-11-04 2024-05-28 中国长江三峡集团有限公司 Super-hydrophobic material, preparation method thereof and application thereof in drainage pipeline

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Application publication date: 20190409