CN110094601A - A kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization - Google Patents
A kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization Download PDFInfo
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- CN110094601A CN110094601A CN201910361509.1A CN201910361509A CN110094601A CN 110094601 A CN110094601 A CN 110094601A CN 201910361509 A CN201910361509 A CN 201910361509A CN 110094601 A CN110094601 A CN 110094601A
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- Prior art keywords
- phase
- heat
- change material
- aqueduct
- insulation
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Classifications
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- 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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. using induction, dielectric or microwave heating
-
- 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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Insulation (AREA)
Abstract
A kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization; it is characterized in that; the aqueduct includes pipeline body; one layer of anti-water resistance rusty scale one is coated outside the pipeline body; hydrated amorphous salt phase-change material layers are wrapped up outside the anti-water resistance rusty scale one; one layer of anti-water resistance rusty scale two is coated outside the hydrated amorphous salt phase-change material layers, wraps up polyurethane insulation coating outside the anti-water resistance rusty scale two, external protection is wrapped up outside the polyurethane insulation coating；The purpose of the present invention is to solve existing polyurethane foamed thermal-insulating pipeline long distance water transfer is unable to maintain that water temperature under severe cold environment the problem of, and then provide a kind of new phase change materials for heat energy storage, it is combined to polyurethane foamed thermal-insulating pipeline lining, a kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization is developed, the energy conservation and thermal insulation property of polyurethane foamed thermal-insulating pipeline severe cold environment long distance water transfer are further promoted.
Description
Technical field
The present invention relates to aqueduct technical fields, and in particular to a kind of prefabricated heat-insulation and heat-preservation water delivery of phase-change material functionalization
Pipeline.
Background technique
Since the '30s polyurethane synthetic material is born, obtained as a kind of excellent heat-insulating material always
Rapidly develop, application range is also more and more extensive, more due to its easy construction, energy-saving anti-corrosive significant effect and used in large quantities
In various pipelines such as various heat supplies, refrigeration, oil transportation, defeated vapour, water deliverys.Polyurethane foamed thermal-insulating pipe is commonly called as black yellow jacket insulating tube,
It is mainly made of instrumentation tubes, insulating layer, outer protection tube three parts, and three component parts have corresponding effect.Instrumentation tubes conveying
It is medium, high pressure resistant；Insulating layer prevents heat loss from generating；Outer protection tube primarily serves sealing, etch-proof effect.Currently, in severe cold
Under environment (- 20 DEG C~-50 DEG C), in order to maintain the water temperature of polyurethane foamed thermal-insulating pipe long-distance water delivery, polyurethane material is protected
The thermal insulation function of warm layer is most important.However, even if polyurethane material heat insulation effect is good, but when exposed tube is in severe cold
Under ultra-low temperature surroundings, the heat loss and water temperature drop for conveying water not can avoid.In order to keep water temperature, water delivery heat supply company can only
At interval of electric heating station at certain distance construction one, supplying heat is electrically heated to the water in Long-distance Pipeline for Water Conveyance.Therefore
The energy conservation of long distance water transfer polyurethane foamed thermal-insulating pipeline and thermal insulation property are urgently further promoted under severe cold environment.
Summary of the invention
The purpose of the present invention is to solve existing polyurethane foamed thermal-insulating pipeline under severe cold environment long distance water transfer
The problem of being unable to maintain that water temperature, and then a kind of new phase change materials for heat energy storage is provided, it is combined to polyurethane foamed thermal-insulating pipeline
Internal layer develops a kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization, further promotes polyurethane foamed thermal-insulating pipeline
The energy conservation and thermal insulation property of severe cold environment long distance water transfer.
The present invention to achieve the above object, is achieved by the following technical programs: a kind of phase-change material functionalization is prefabricated
Heat-insulation and heat-preservation aqueduct, the aqueduct include pipeline body, and one layer of anti-water resistance rusty scale one is coated outside the pipeline body,
Hydrated amorphous salt phase-change material layers are wrapped up outside the anti-water resistance rusty scale one, are coated with one outside the hydrated amorphous salt phase-change material layers
The anti-water resistance rusty scale two of layer, the anti-water resistance rusty scale two wrap up polyurethane insulation coating outside, outer guarantor are wrapped up outside the polyurethane insulation coating
Sheath.
The material of the pipeline body can be with as a further optimization of the solution, are as follows: seamed steel pipe, seamless steel pipe or double
Face submerged arc spiral welded steel pipe is one such.
The anti-water resistance rusty scale one is identical with anti-two material of water resistance rusty scale as a further optimization of the solution, and material
It is one such for the anti-water resistance rust material of rubber plastic class or organic polymer type coating.
The material of the hydrated amorphous salt phase-change material layers is by phase-change material as a further optimization of the solution,
The material that setting modification obtains is carried out, the qualitative material is thickener class high molecular material
The selection of phase-change material is advisable with cheap, such as inorganic hydrous salt phase transition material, cheap organic phase change material, with
And organic and inorganic compounding phase-change material etc..Phase-change material solid-liquid phase transition further leaks in order to prevent, to phase-change material into
Row setting modification, setting material used are thickener class high molecular material, such as: hydroxyethyl cellulose, carboxymethyl cellulose
Element, polyacrylamide acrylic copolymer, sodium alginate etc..The phase transition temperature design-adjustable method of phase-change material is: choosing
A kind of phase-change material that enthalpy of phase change calorific value is high is as benchmark phase-change material.It is theoretical based on binary and Multi-Component Phase Diagram, by another
The biggish phase-change material of enthalpy of phase change calorific value or alkali metal villaumite are mixed again in benchmark phase-change material, mix ratio again by regulation,
Obtain the composite phase-change material with different phase transition temperatures.According to target water temperature required by aqueduct, phase transition temperature is selected
Meet the composite phase-change material of application requirement.
The protective layer material is high density polyethylene (HDPE) or glass reinforced plastic as a further optimization of the solution,.
The utility model has the advantages that
The present invention provides a kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization, has the advantages that
1, the phase transition temperature setting of phase-change material is identical as target supply water temperature.In low power consumption, cheap electricity price is utilized
The water power heating for giving conveying, makes its temperature be slightly above 2-3 DEG C of target supply water temperature.Since water temperature is higher than phase transformation material after electric heating
Expect phase transition temperature, phase-change material occurs phase transition, excessive heat is stored.Until peak of power consumption, stop to defeated
The water power heating sent, no longer maintenance water temperature are higher than target water temperature.The water conveyed under severe cold environment is during long distance delivery, temperature
Degree can gradually decrease, when at a temperature below target supply water temperature (being lower than phase-change material phase transition temperature), shaping phase-change material
The heat supplement stored to the water of conveying, increases water temperature, maintains target water temperature or more by the phase-change material in layer,
Play the purpose of energy-saving heat preserving.
2, it can be realized electricity consumption by adjusting the thickness of shaping phase-change material layer and the enthalpy calorific value of phase-change material, the present invention
Electric heating is only after 3-5 hours when low ebb, other periods can rely on the thermal energy supply of phase-change material sustained release in one day, maintains defeated
Send water temperature in target water temperature or more.This achieve make full use of low price electric energy, the purpose of peak load shifting.And due to water-supply-pipe
Phase-change material layers in road can play the effect stablized and maintain target water temperature with sustained release thermal energy.Phase-change material functionalization is pre-
The popularization and application of heat-insulation and heat-preservation aqueduct processed can also extend the distance for maintaining the electric heating station of water temperature, and then reduce
Regular length waterline powers on the Quantity of heating station, greatly reduces waterline operation cost.
3, the configuration of the present invention is simple is manufactured and is easy, and use is safe, high reliablity.
Detailed description of the invention
The present invention that the following is further explained with reference to the attached drawings:
Fig. 1 is schematic cross-section of the present invention:
In figure；1, pipeline body, 2, anti-water resistance rusty scale one, 3, hydrated amorphous salt phase-change material layers, 4, anti-water resistance rusty scale two,
5, polyurethane insulation coating, 6, protective layer.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract), unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
Fig. 1 is please referred to, a kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization, the aqueduct includes pipeline
This, 1, the pipeline body coats one layer of anti-water resistance rusty scale 1 outside, wraps up the phase transformation of hydrated amorphous salt outside the anti-water resistance rusty scale one
Material layer 3, is coated with one layer of anti-water resistance rusty scale 24 outside the hydrated amorphous salt phase-change material layers, outside the anti-water resistance rusty scale two
Polyurethane insulation coating 5 is wrapped up, wraps up external protection 6 outside the polyurethane insulation coating.
The material of the pipeline body can be with as a further optimization of the solution, are as follows: seamed steel pipe, seamless steel pipe or double
Face submerged arc spiral welded steel pipe is one such.
The anti-water resistance rusty scale one is identical with anti-two material of water resistance rusty scale as a further optimization of the solution, and material
It is one such for the anti-water resistance rust material of rubber plastic class or organic polymer type coating.
The material of the hydrated amorphous salt phase-change material layers is by phase-change material as a further optimization of the solution,
The material that setting modification obtains is carried out, the qualitative material is thickener class high molecular material
The external protection material is high density polyethylene (HDPE) or glass reinforced plastic as a further optimization of the solution,.Outer protection
Layer stiffness and strength with higher can bear collision, friction and pressure, to protect internal energy-saving and heat-insulating material from broken
It is bad.
Working principle: when polyurethane foamed thermal-insulating exposed tube is under severe cold ultra-low temperature surroundings, the heat loss of water is conveyed
It not can avoid with water temperature drop.In order to keep water temperature, water delivery heat supply company can only build electric heating at one at interval of certain distance
It stands, is electrically heated supplying heat to the water in Long-distance Pipeline for Water Conveyance.Therefore long distance water transfer polyurethane is sent out under severe cold environment
The energy conservation of bubble utilidor and thermal insulation property are urgently further promoted.It is prefabricated heat-insulated that the present invention develops a kind of phase-change material functionalization
Rise thermal insulation delivery pipe road, specific technical solution are as previously described.The phase transition temperature setting of phase-change material is identical as target supply water temperature.?
When low power consumption, is heated using the water power that cheap electricity price gives conveying, its temperature is made to be slightly above 2-3 DEG C of target supply water temperature.By
Water temperature is higher than phase-change material phase transition temperature after electric heating, and phase-change material occurs phase transition, excessive heat is stored.Deng
When having arrived peak of power consumption, stop heating the water power of conveying, no longer maintenance water temperature is higher than target water temperature.It is conveyed under severe cold environment
During long distance delivery, temperature can gradually decrease water, when at a temperature below target supply water temperature (i.e. be lower than phase-change material phase
Temperature) when, the heat supplement stored to the water of conveying, is made water temperature liter by the phase-change material in shaping phase-change material layer
Height maintains target water temperature or more, plays the purpose of energy-saving heat preserving.By adjusting shaping phase-change material layer thickness and
The enthalpy calorific value of phase-change material, electric heating only after 3-5 hours when the present invention can be realized low power consumption, other periods are all in one day
Conveying water temperature can be maintained in target water temperature or more by the thermal energy supply of phase-change material sustained release.It is low this achieve making full use of
Valence electric energy, the purpose of peak load shifting.And since the phase-change material layers in aqueduct can play stabilization with sustained release thermal energy
Maintain the effect of target water temperature.The popularization and application of the prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization, can also extend dimension
The distance at the electric heating station of water holding temperature, and then reduce and power on the Quantity of heating station in regular length waterline, greatly
Reduce waterline operation cost.
Need to particularly point out: the storage heat function in order to realize phase-change material conveys the difference of water temperature for aqueduct,
It needs to be designed the phase transition temperature of phase-change material, the design of phase transition temperature is mainly according to binary and Multi-Component Phase Diagram theory side
Method, specific design principle are the phase diagram theory predictions of phase-change material phase transition temperature, then pass through differential scanning calorimetric analysis (DSC
Method) test Phase Diagram Analysis is carried out, theory-experiment combines, and realizes the Precise spraying target of phase-change material phase transition temperature.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization, which is characterized in that the aqueduct includes pipeline
Ontology, the pipeline body coat one layer of anti-water resistance rusty scale one outside, wrap up the phase transformation of hydrated amorphous salt outside the anti-water resistance rusty scale one
Material layer, the hydrated amorphous salt phase-change material layers coat one layer of anti-water resistance rusty scale two outside, wrap up outside the anti-water resistance rusty scale two
Polyurethane insulation coating, the polyurethane insulation coating wrap up external protection outside.
2. the prefabricated heat-insulation and heat-preservation aqueduct of a kind of phase-change material functionalization according to claim 1, which is characterized in that institute
The material for stating pipeline body can be with are as follows: seamed steel pipe, seamless steel pipe or double submerged arc helix welding steel pipe are one such.
3. the prefabricated heat-insulation and heat-preservation aqueduct of a kind of phase-change material functionalization according to claim 1, which is characterized in that institute
It is identical with anti-two material of water resistance rusty scale to state anti-water resistance rusty scale one, and material is the anti-water resistance rust material of rubber plastic class or organic high score
Subclass coating is one such.
4. the prefabricated heat-insulation and heat-preservation aqueduct of a kind of phase-change material functionalization according to claim 1, which is characterized in that institute
State hydrated amorphous salt phase-change material layers material be by carrying out the obtained material of setting modification to phase-change material, it is described fixed
Property material be thickener class high molecular material.
5. the prefabricated heat-insulation and heat-preservation aqueduct of a kind of phase-change material functionalization according to claim 1, which is characterized in that institute
Stating protective layer material is high density polyethylene (HDPE) or glass reinforced plastic.
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| CN201910361509.1A CN110094601A (en) | 2019-04-30 | 2019-04-30 | A kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization |
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| CN201910361509.1A CN110094601A (en) | 2019-04-30 | 2019-04-30 | A kind of prefabricated heat-insulation and heat-preservation aqueduct of phase-change material functionalization |
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| CN110094601A true CN110094601A (en) | 2019-08-06 |
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Cited By (1)
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| CN112032474A (en) * | 2020-08-26 | 2020-12-04 | 天津市伟星新型建材有限公司 | Phase-change energy-storage type condensation-preventing composite pipeline and preparation method thereof |
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Application publication date: 20190806 |