CN109751482A - The disconnected thermal part of ultralow temperature cold insulation and its manufacturing method - Google Patents

The disconnected thermal part of ultralow temperature cold insulation and its manufacturing method Download PDF

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Publication number
CN109751482A
CN109751482A CN201810938412.8A CN201810938412A CN109751482A CN 109751482 A CN109751482 A CN 109751482A CN 201810938412 A CN201810938412 A CN 201810938412A CN 109751482 A CN109751482 A CN 109751482A
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China
Prior art keywords
leather goods
outer leather
cold insulation
thickness
pipe
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CN201810938412.8A
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CN109751482B (en
Inventor
金纶珦
金政奎
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Kim Yoon Hyang
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Kim Yoon Hyang
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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
    • 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
    • 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
    • F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
    • 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
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Laminated Bodies (AREA)

Abstract

The disconnected thermal part manufacturing method of ultralow temperature cold insulation of the invention includes the disconnected thermal part of ultralow temperature cold insulation for surrounding the second outer leather goods of the outside of the first outer leather goods of the first outer leather goods and encirclement of the pipe of fluid flowing of the first temperature for manufacturing, it may include: obtain the first step of the first information about the first temperature；The second step of the first thickness of the first outer leather goods is calculated according to the first information；Prepare the third step of the first outer leather goods with the second thickness bigger than first thickness；The four steps that membranous type hydrophober is coated with the first outer leather goods is applied with hybrid resin system；The two sides of the first outer leather goods of pressurization make the thickness of the first outer leather goods be compressed to the 5th step of first thickness from second thickness；The 6th step that membranous type hydrophober is dried is applied to hybrid resin system；The first outer leather goods is set to touch the 7th step of the outside of pipe；And adhered layer is formed between the first outer leather goods and the second outer leather goods to form the 8th step of the disconnected thermal part of ultralow temperature cold insulation.

Description

The disconnected thermal part of ultralow temperature cold insulation and its manufacturing method
Technical field
The present invention relates to the disconnected thermal part of ultralow temperature cold insulation and its manufacturing methods, and in particular to a kind of includes surrounding first The pipe of the fluid flowing of temperature is discharged into external the first outer leather goods and encirclement institute by the pipe with the heat for limiting the fluid The outside of the first outer leather goods is stated to prevent the ultralow temperature of second outer leather goods of the water point from external penetration to the described first outer leather goods from protecting Cold disconnected thermal part and its manufacturing method.
Background technique
Petrochemistry device, shipbuilding industry, marine device field are usually super come transportation of liquefied natural gas, liquid nitrogen etc. with pipeline The liquid or gas of low temperature, the disconnected thermal part for disconnected heat pipe being encased outside pipeline etc for the disconnected heat such as cold insulation make internal Liquid or gas keep proper temperature.
This disconnected heat pipe for cold insulation mainly generallys use flexible elastomer foam (Flexible Elast omeric ) etc Foam:FEF disconnected thermal part.
But if disconnected heat pipe is only with flexible elastomer foam, then the thickness of foaming body increases, and workload increases when construction, Shrinking percentage is high in the case where becoming low temperature by the pipe for cold insulation, therefore the problem of generation construction aspect.
Melamine foamed plastic (melamine foam) hardly happens the variation of itself physical property in ultralow temperature, leads to Cross melamine resin be formed as can be realized in the case where open cell type (i.e. Open cell) structure lightweight, flame retardancy it is good, Ultralow temperature or high temperature have stable physical property.Also, hot and sound absorption properties of breaking are good, therefore are widely used in multiple fields.
But since the penetrability of melamine foamed plastic is high, does not tolerate cold air, there is disconnected thermal effect when gas to the cold to decline The problem of.
Have due to the high moisture-inhibiting of shrinkage and melamine foamed plastic when this rubber pange thermal insulation material is in low temperature It is difficult to the problem of being used as ultralow temperature cold insulation material.
[existing technical literature]
[patent document]
(patent document 1) Korean granted patent the 10-0816962nd
Summary of the invention
Technical problem
The present invention is in order to solve this problem, and it is an object of the present invention to provide a kind of outside sticking flexible bullet in melamine foamed plastic The infiltration of elastomeric foam (flexible elastomer foam:FEF) cutting outside air is to prevent water point from penetrating into melamine Amine foam, while the dew condensation phenomenon that cutting occurs by the temperature difference between the internal flow flowed in pipeline is to prevent flexibility Elastomer foam (flexible elastomer foam:FEF) shrinks, prevents the disconnected heat of ultralow temperature cold insulation of disconnected thermal effect decline Component and its manufacturing method.
Technical solution
The ultralow temperature cold insulation of one embodiment of the present of invention breaks thermal part manufacturing method for manufacturing including surrounding the first temperature The pipe of the fluid flowing of degree is discharged into described in external the first outer leather goods and encirclement with the heat for limiting the fluid by the pipe The outside of first outer leather goods is to prevent water from dividing the ultralow temperature cold insulation of the second outer leather goods from external penetration to the described first outer leather goods Disconnected thermal part, it may include: obtain the first step of the first information of first temperature about the temperature as the fluid； The second step for surrounding the size of the first thickness of the described first outer leather goods of the pipe is calculated according to the first information；With than The big second thickness of the size of the first thickness prepares the third step of the described first outer leather goods；Membranous type is applied with hybrid resin system Hydrophober is coated with the four steps of the described first outer leather goods；The two sides for the described first outer leather goods that pressurization is applied to be applied The thickness of described first outer leather goods of cloth is compressed to the 5th step of the first thickness from the second thickness；To being coated on The hybrid resin system for stating the first outer leather goods applies the 6th step that membranous type hydrophober is dried；Make by dry described One outer leather goods touches the outside of the pipe so that the 7th step that the pipe is not exposed on the external；And in the described first outer leather goods Adhered layer is formed between the described second outer leather goods to be formed by the described first outer leather goods, the second outer leather goods and the stickup 8th step of the disconnected thermal part of the ultralow temperature cold insulation that layer is constituted.
The second step of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention includes: to obtain First temperature (c1, unit: DEG C), about every linear meter(lin.m.) heat loss (Q, unit: W/m) of the first outer leather goods, the pipe it is outer Diameter (d1, unit: m) and the 2-1 step and root of the second information of the thermal conductivity of the first outer leather goods (k1, unit: W/mK) The first thickness (t1, the unit: 2-2 step m), the 2- of the described first outer leather goods are calculated according to second information 2 steps can meet formula: -10 (DEG C)≤[c1-Qln { (2t1+d1)/d1 }]/2 π k1.
The adhered layer of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention may include poly- ammonia At least one of ester, acrylic acid and silica gel ingredient.
Described first outer leather goods of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention is trimerization Cyanamide foam, the second outer leather goods can be flexible elastomer foam.
The size of the second thickness of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention can To be 1.1 times to 1.2 times of size of the first thickness.
The 5th step of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention can pass through volume The described first outer leather goods being applied is thermally compressed to volume (Roll to Roll) mode.
The 8th step of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention can pass through volume The stickup between the described first outer leather goods and the second outer leather goods is formed to piece (Roll to Sheet) mode Layer.
The 6th step of the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention can be 150 DEG C to 180 DEG C it is 1 hour to 2 hours dry to the first outer leather goods being applied.
The disconnected thermal part of the ultralow temperature cold insulation of one embodiment of the present of invention includes the pipe for surrounding the fluid flowing of the first temperature The first outer leather goods of outside and the outside of the encirclement first outer leather goods are discharged by the pipe to limit the heat of the fluid To prevent second outer leather goods of the water point from external penetration to the described first outer leather goods, the first outer leather goods is prevented from the pipe The thermal conductivity that the fluid of first temperature of internal flow is transmitted to the pipe causes the temperature of the described second outer leather goods to drop to Two temperature make the outside of the described first outer leather goods not expose outside hereinafter, the second outer leather goods can surround the described first outer leather goods Portion, to prevent water point to be flowed into the described first outer leather goods from outside.
The ultralow temperature cold insulation of one embodiment of the present of invention breaks thermal part can be according to by the described first outer leather goods generation Every linear meter(lin.m.) heat loss (Q, unit: W/m), outer diameter (d1, the unit: m) and outside described first of the pipe of the first outer leather goods The thermal conductivity (k1, unit: W/mK) of leather goods, first temperature (c1, unit: DEG C) big with the thickness of the described first outer leather goods Small (t1) meets formula:
The second temperature of the disconnected thermal part of the ultralow temperature cold insulation of one embodiment of the present of invention is -10 DEG C, described first Outer leather goods can be melamine foamed plastic, and the second outer leather goods is flexible elastomer foam.
The disconnected thermal part of the ultralow temperature cold insulation of one embodiment of the present of invention, the institute measured by the method in accordance with KS-F4714 The hydrophobic degree for stating the second outer leather goods should be 98% or more.
Technical effect
The disconnected thermal part of ultralow temperature cold insulation of the invention prevents from condensing by cutting infiltration of external air to melamine foamed plastic Phenomenon and the heat loss for preventing FEF contraction to prevent disconnected thermal effect decline, minimize ultralow temperature pipeline, so as to improve cold insulation Effect, and since structure and material are light, have to be arranged, construction can be facilitated and other effects.
Detailed description of the invention
Fig. 1 is the flow chart for showing the disconnected thermal part manufacturing method of ultralow temperature cold insulation of one embodiment of the present of invention；
Fig. 2 is for illustrating that the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment through the invention calculates The thickness of first outer leather goods with reference to figure；
Fig. 3 is the brief perspective views for showing the disconnected thermal part of ultralow temperature cold insulation of one embodiment of the present of invention；
Fig. 4 is the simplified diagram for illustrating the disconnected thermal part of the ultralow temperature cold insulation of one embodiment of the present of invention；
Fig. 5 is for illustrating the reference photo in accordance with the method for the KS-F4714 for measuring hydrophobic degree.
Description of symbols.
S1: first step S2: second step
S3: the S4: the four steps of third step
S5: the five the S6: the six step of step
S7: the seven the S8: the eight step of step
1: ultralow temperature cold insulation breaks the outer leather goods of thermal part 10: the first
20: the outer leather goods of adhered layer 30: the second
Specific embodiment
Explain specific embodiment of the present invention in detail referring to the drawings.But thought of the invention is not limited to disclosure Embodiment, understand thought of the invention those skilled in the art can in the range of identical thought by increase other composition Element, change, deletion etc., be easily obtained it is more small-scale other invention or be contained in the scope of the inventive concept other Embodiment, but these also belong to inventive concept range.
Also, it is identical to the identical constituent element mark of function in the identical thought range shown in the attached drawing of each embodiment Appended drawing reference be illustrated.
Fig. 1 is the flow chart for showing the disconnected thermal part manufacturing method of ultralow temperature cold insulation of one embodiment of the present of invention, and Fig. 2 is The first outer leather goods that the disconnected thermal part manufacturing method of ultralow temperature cold insulation for illustrating one embodiment through the invention calculates Thickness with reference to figure.
Also, Fig. 3 is the brief perspective views for showing the disconnected thermal part of ultralow temperature cold insulation of one embodiment of the present of invention, Fig. 4 It is the simplified diagram for illustrating the disconnected thermal part of the ultralow temperature cold insulation of one embodiment of the present of invention.
Fig. 5 is for illustrating the reference photo in accordance with the method for the KS-F4714 for measuring hydrophobic degree.
Ultralow temperature cold insulation breaks thermal part manufacturing method
Referring to Fig. 1 and Fig. 2, the disconnected thermal part manufacturing method of the ultralow temperature cold insulation of one embodiment of the present of invention is that manufacture includes The pipe P of the fluid flowing of the first temperature is surrounded to limit the heat of fluid and be discharged into external the first outer leather goods 10 and packet by pipe P The outside of the first outer leather goods 10 is enclosed to prevent the ultralow temperature of second outer leather goods 30 of the water point from external penetration to the first outer leather goods 10 The manufacturing method of the disconnected thermal part 1 of cold insulation.
The disconnected thermal part manufacturing method of ultralow temperature cold insulation of the invention may include first step S1 to the 8th step S8.
First step S1 is the first information for obtaining the first temperature (c1, unit: DEG C) about the temperature as fluid Step.
The first information can by petrochemistry device for being provided with pipe P of the invention, shipbuilding industry, marine device or The liquid of the ultralow temperature such as the liquefied natural gas, the liquid nitrogen that thus produce or the temperature information of gas obtain.
Second step S2 is the step for calculating the size for the first thickness of the first outer leather goods 10 for surrounding pipe P according to the first information Suddenly.
Specifically, referring to mathematical expression 1, second step S2 includes the first temperature (c1, the list obtained as the first information Position: DEG C), every linear meter(lin.m.) heat loss (Q, unit: W/m) about the first outer leather goods 10, outside the outside diameter d 1 (unit: m) and first of pipe P The 2-1 step of second information of the thermal conductivity (k1, unit: W/mK) of leather goods 10 and according to the second information calculate the first outer leather goods The 2-2 step of 10 first thickness.
Here, 2-2 step can meet formula: -10 (DEG C)≤[c1-Qln { (2t1+d1)/d1 }]/2 π k1.
[mathematical expression 1]
More specifically, every linear meter(lin.m.) heat loss (Q, unit: W/m) of first outer leather goods 10 can root for above-mentioned mathematical expression 1 According to about the first temperature (c1, unit: DEG C), ambient temperature (c2), the thermal conductivity (k1, unit: W/mK) of the first outer leather goods 10, pipe The surface thermal conductivity (f) of the outside diameter d 1 (unit: m) of P, the thickness t1 (unit: m) of the first outer leather goods 10 and the first outer leather goods 10 Information calculated by following mathematical expressions 2.
[mathematical expression 2]
Also, referring to fig. 4, the first thickness t1 (unit: m) of the first outer leather goods 10 can according to the outside diameter d 1 of pipe P (unit: M) with the export of the size of the outside diameter d 2 of the first outer leather goods 10, can by the outside diameter d 1 of following 4,5,6 delivery line P of mathematical expression (unit: M) relationship between the outside diameter d 2 of the first outer leather goods 10.
[mathematical expression 3]
[mathematical expression 4]
D2-d1=2t1
[mathematical expression 5]
D2=2t1+d1
In addition, the ultralow temperature cold insulation of one embodiment of the present of invention breaks, the third step S3 of 1 manufacturing method of thermal part is to use The second thickness bigger than the size of first thickness prepares the step of the first outer leather goods 10.
Here, the size of second thickness can be 1.1 times to 1.2 times of the size of first thickness, but not limited to this.
Third step S3 be in order to prevent in following 5th step S5 the first outer leather goods 10 of compression forming thickness reduce and The step of preparing the first outer leather goods 10 with the big second thickness of the size than first thickness.
Four steps S4 is to apply the step of membranous type hydrophober is coated with the first outer leather goods 10 with hybrid resin system.Here, mixing Resin system, which applies membranous type hydrophober, can be fluorine-containing and silicon hydrophober.
Also, the 5th step S5 is that the two sides for the first outer leather goods 10 that pressurization is applied make the first crust being applied The step of thickness of part 10 is compressed to first thickness from second thickness.
5th step S5 can be thermally compressed the first outer leather goods 10 being applied by roll-to-roll (Roll to Roll) mode.
It is configured with being separated by here, roll-to-roll (Roll to Roll) mode refers to that roll is configured in the first outer leather goods 10 The mode of first outer 10 compression forming of leather goods during being rotated in the state of between two rolls of top and the bottom.Here, two The standoff distance of roll can be 3mm to 5mm.
Also, described two rolls are while compressing the first outer leather goods 10 to the first outer heating of leather goods 10 so that being coated on The one side of first outer leather goods 10 and the hybrid resin system of another side apply membranous type hydrophober and are tightly pasted on the first outer leather goods 10, so that hybrid resin system, which applies membranous type hydrophober, is coated on the first outer leather goods 10.
This can prevent the density decline for the coating being coated on the first outer leather goods 10 and thickness that predeterminated level is not achieved, and mention Adhesive force of the height in following 8th step S8 between the second outer leather goods 30.
Also, four steps S4 and the 5th step S5 can be carried out simultaneously by above-mentioned roll-to-roll mode.
In addition, the 6th step S6 is to apply membranous type hydrophober to the hybrid resin system for being coated on the first outer leather goods 10 to be dried The step of.
Specifically, the 6th step S6 is 1 hour to 2 dry to the first outer leather goods 10 being applied at 150 DEG C to 180 DEG C It the step of hour, can be by being carried out to the mobile first outer leather goods 10 of drying device formed in a manner of conveyor-type.
7th step S7 is to make the step of outside the first dry outer 10 contacting pipe P of leather goods pipe P not being exposed on the external.
8th step S8 is that adhered layer 20 is formed between the first outer leather goods 10 and the second outer leather goods 30 to be formed by first The ultralow temperature cold insulation that outer leather goods 10, the second outer leather goods 30 and adhered layer 20 are constituted break thermal part 1 the step of.
Here, adhered layer 20 may include at least one of polyurethane, acrylic acid and silica gel ingredient.
Also, the 8th step S8 can be formed by roll-to-sheet (Roll to Sheet) mode between the first outer leather goods 10 with Adhered layer 20 between second outer leather goods 30.
Specifically, adhered layer 20 is formed on the first outer leather goods 10, has the take-up roll of the second outer leather goods 30 to roll out from volume Adhered layer 20 is formed while second outer leather goods 30 between the first outer leather goods 10 and the second outer leather goods 30, makes the second outer leather goods 30 Contact adhered layer 20.
8th step S8 can continuously be realized by roll-to-sheet mode to be formed adhered layer 20 and makes adhered layer 20 and second The process that outer leather goods 30 contacts.
1 manufacturing method of thermal part in addition, ultralow temperature cold insulation according to an embodiment of the invention breaks, the first outer leather goods 10 The thermal conductivity for preventing the fluid from the first temperature of the internal flow of pipe P to be transmitted to pipe P causes the temperature of the second outer leather goods 30 to drop to Second temperature (c2) is below.
Here, the first outer leather goods 10 can be melamine resin foam.
The density of melamine resin is very low, but 9kg/m3, therefore be that can reduce weight and save material Excellent disconnected thermal part material.It can use silicon or fluorocarbon resin carry out subsequent combined treatment and makes have water resistance and oil resistant Property.
Also, the second outer leather goods 30 can be flexible elastomer foam (Flexible Elastomeric Foam:FEF).
Fig. 2 is the thickness that will correspond to the first outer leather goods 10 and the second outer leather goods 30 of temperature of the fluid moved in pipe P The data of digitization.
Specifically, be the ambient temperature that will be tested be 30 DEG C, the thermal coefficient of the first outer leather goods 10 is 8W/m2K、 Relative humidity corresponds in the case where being 85% outside the first outer leather goods 10 and second of the first temperature (c1, unit: DEG C) of fluid The data of the thickness data of leather goods 30.
The ability resistant to moisture of first outer leather goods 10 is slightly poor, shrinks when having moisture inflow, therefore can result in disconnected thermal effect Fruit decline, the second outer leather goods 30 can be slightly poor by resistance to temperature capability, but the material with excellent hydrophobicity is formed.
Specifically, physical property variation occurs at -10 DEG C for the second outer leather goods 30, can result in the outer of the first outer leather goods 10 The decline of face protecting effect, therefore the first outer leather goods 10 need to prevent pipe P from from the first temperature dropping to second temperature c2 just and can ensure that the The hydrophobic effect of two outer leather goods 30 maximizes.
Therefore, the first outer leather goods 10 is in order to ensure the interruption with the second outer leather goods 30 according to the fluid temperature (F.T.) moved in pipe P Heat and be formed as different thickness.
In addition, the hydrophobic degree of the second outer leather goods 30 measured in accordance with the method for KS-F4714 should reach 98% or more.
Here, the experimental method to KS-F4714 is briefly described.After the test piece for preparing four 160 × 110mm first, Three test pieces in four test pieces are put into electric oven, remaining one is taken care of at room temperature as audit by comparison purposes (referring to figure 5)。
Later, with 500g/m2On the basis of impregnate (Dipping) hydrophober after, in order to dry use air-heater in 180 DEG C of temperature The lower hydrophobic placed 3 hours and carry out one hour tests (test).
It measures the weight of the dry front and back of each test piece and measures the weight after carrying out hydrophobic test, carried out with the weight before drying Whether be 98% or more, evaluate hydrophobic situation with this if calculating with the hydrophobic degree confirmed.
According to by the above method to the first outer leather goods 10 tested as a result, the hydrophobic degree of the first outer leather goods 10 is 98.7%.
Following mathematical expression 7 is hydrophobic degree formula.
[mathematical expression 6]
Here, Wr is hydrophobic degree, m0It is the volume that the quality (unit: g) of test piece before experiment, V are test piece, m1It is experiment The quality (unit: g) of test piece afterwards, ρ are the density 1g/cm of water3。
Ultralow temperature cold insulation breaks thermal part
Referring to Fig. 3 and Fig. 4, the disconnected thermal part 1 of the ultralow temperature cold insulation of one embodiment of the present of invention can include: surround the first temperature The pipe P of the fluid flowing of degree is discharged into external the first crust of the first outer leather goods 10 and encirclement by pipe P with the heat for limiting fluid The outside of part 10 is to prevent second outer leather goods 30 of the water point from external penetration to the first outer leather goods 10.
The thermal conductivity that first outer leather goods 10 prevents the fluid from the first temperature of the internal flow of pipe P to be transmitted to pipe P causes second Outer leather goods 30 drops to second temperature or less.
Here, the first outer leather goods 10 can be melamine resin foam.
The density of melamine resin is very low, but 9kg/m3, therefore be that can reduce weight and save material Excellent disconnected thermal part material.It can use silicon or fluorocarbon resin carry out subsequent combined treatment and makes have water resistance and oil resistant Property.
Also, melamine resin also serves as brilliant sound-absorbing material, therefore can reduce the fluid moved in pipe P It prevents the temperature of the fluid of the first temperature moved in pipe P from rising while the mobile noise generated, minimizes the temperature because of fluid Degree rises and the physical property of the fluid of generation changes so that the fluid of the first temperature is moved to other positions from a position.
Second outer leather goods 30, which is configured to surround the first outer leather goods 10, from outside is flowed into the first outer leather goods 10 to prevent water from dividing, The outside of the first outer leather goods 10 is prevented to be exposed on the external.
Second outer leather goods 30 is formed by flexible elastomer foam (Flexible Elastomeric Foam:FEF), here, Elastomer refers to the substance with elasticity or rubber-like property.Elastomeric material, for example, thermoplastic elastomer (TPE) usually becomes in removal In the case where shape power, it can return to the original form after deformation.Specifically, as used in this specification, elastomer Be intended to indicate that can be extended when applying stretching force reach it is bigger than relaxed length go out about 50% or more extended length, be allowed to extend Material restores the property of 50% or more the arbitrary substance extended when stretching force relaxation.X-Y plane size meets elastomeric material The example of hypothesis of this definition have and can extend 1.50 inches or more and be allowed to loose situation after extending to 1.50 inches Under be restored to 1.25 inches of length below material 1 inch of sample.Most elastomeric material can be elongated to than pine Relaxation length is much larger than 50%.Wherein most is substantially restored to its initial relaxation length in the stretching force relaxation for being allowed to extend Degree.Other than net or the isostructural flexible material of X-Y plane size described above of piece, the Z plane size of material can be with With elasticity.Specifically, resilient nature is shown in the case where pressurizeing to structure, is returned nearly to initial position when relaxing.
The thickness of first outer leather goods 10 can be different with the first temperature in the mobile fluid in the inside of pipe P.
Specifically, referring to mathematical expression 8, according to every linear meter(lin.m.) heat of the first outer leather goods 10 occurred by the first outer leather goods 10 The thermal conductivity (k1, unit: W/mK) of loss (Q, unit: W/m), the outside diameter d 1 (unit: m) of pipe P and the first outer leather goods 10, first The thickness size t1 of temperature (c1, unit: DEG C) and the first outer leather goods 10 can meet formula: -10 (DEG C)≤[c1-Qln (2t1+d1)/ d1}]/2πk1。
[mathematical expression 7]
Fig. 2 is the thickness that will correspond to the first outer leather goods 10 and the second outer leather goods 30 of temperature of the fluid moved in pipe P Spend the data of digitization.
Specifically, be the ambient temperature that will be tested be 30 DEG C, the thermal coefficient of the first outer leather goods 10 is 8W/m2K、 Relative humidity corresponds in the case where being 85% outside the first outer leather goods 10 and second of the first temperature (c1, unit: DEG C) of fluid The data of the thickness data of leather goods 30.
The ability resistant to moisture of first outer leather goods 10 is slightly poor, shrinks when having moisture inflow, therefore can result in disconnected thermal effect Fruit decline, the second outer leather goods 30 can be slightly poor by resistance to temperature capability, but the material with excellent hydrophobicity is formed.
Specifically, physical property variation occurs at -10 DEG C for the second outer leather goods 30, can result in the outer of the first outer leather goods 10 The decline of face protecting effect, therefore the first outer leather goods 10 need to prevent pipe P from dropping to second temperature from the first temperature just can ensure that second The hydrophobic effect of outer leather goods 30 maximizes.
Therefore, the first outer leather goods 10 in order to ensured according to the fluid temperature (F.T.) moved in pipe P the second outer leather goods 30 interruption heat And be formed as different thickness.
In addition, the hydrophobic degree of the second outer leather goods 30 measured in accordance with the method for KS-F4714 should reach 98% or more.
Here, omitted due to doing detailed description to the experimental method of KS-F4714 above herein.
The hydrophobic degree that second outer leather goods 30 of the disconnected thermal part 1 of the ultralow temperature cold insulation of measurement one embodiment of the present of invention obtains It is 98.7%.
Illustrate composition and feature of the invention on the basis of the embodiment of the present invention above, however, the present invention is not limited thereto, Numerous variations or deformation can be carried out in thought and range of the invention, to the those of ordinary skill of technical field of the present invention For be it will be apparent that it should be understood that these change or deformation belong to technical proposal scope.

Claims (12)

  1. The thermal part manufacturing method 1. a kind of ultralow temperature cold insulation breaks, for manufacture include surround the first temperature fluid flowing pipe with Limit the heat of the fluid be discharged by the pipe outside of external the first outer leather goods and the encirclement first outer leather goods with The disconnected thermal part of the ultralow temperature cold insulation of second outer leather goods of the moisture from external penetration to the described first outer leather goods is prevented, feature exists In, comprising:
    Obtain the first step of the first information of first temperature about the temperature as the fluid；
    The second step for surrounding the size of the first thickness of the described first outer leather goods of the pipe is calculated according to the first information；
    Prepare the third step of the described first outer leather goods with the second thickness bigger than the size of the first thickness；
    The four steps that membranous type hydrophober is coated with the described first outer leather goods is applied with hybrid resin system；
    The two sides of the described first outer leather goods being applied of pressurizeing make the thickness for the described first outer leather goods being applied from described Second thickness is compressed to the 5th step of the first thickness；
    The 6th step that membranous type hydrophober is dried is applied to the hybrid resin system for being coated on the described first outer leather goods；
    Make the outside that the pipe is touched by the described first dry outer leather goods so that the pipe be not exposed on the external the 7th Step；And
    Adhered layer is formed between the described first outer leather goods and the second outer leather goods to be formed by the described first outer leather goods, described 8th step of the disconnected thermal part of the ultralow temperature cold insulation that the second outer leather goods and the adhered layer are constituted.
  2. The thermal part manufacturing method 2. ultralow temperature cold insulation according to claim 1 breaks, which is characterized in that the second step packet It includes:
    Obtain the first information about the first temperature c1, every linear meter(lin.m.) heat loss Q about the first outer leather goods, the pipe outside The 2-1 step of the second information of diameter d1 and the thermal conductivity k1 about the described first outer leather goods and according to second information calculate The 2-2 step of the first thickness t1 of the first outer leather goods, wherein the unit of first temperature is DEG C, it is described often to prolong The unit of rice heat loss is W/m, and the unit of the outer diameter of the pipe P is m, and the unit of the thermal conductivity of the first outer leather goods 10 is W/ MK, the unit of the first thickness are m,
    The 2-2 step meets formula:
  3. The thermal part manufacturing method 3. ultralow temperature cold insulation according to claim 2 breaks, it is characterised in that:
    The adhered layer includes at least one of polyurethane, acrylic acid and silica gel ingredient.
  4. The thermal part manufacturing method 4. ultralow temperature cold insulation according to claim 3 breaks, it is characterised in that:
    The first outer leather goods is melamine foamed plastic, and the second outer leather goods is flexible elastomer foam.
  5. The thermal part manufacturing method 5. ultralow temperature cold insulation according to claim 2 breaks, it is characterised in that:
    The size of the second thickness is 1.1 times to 1.2 times of the size of the first thickness.
  6. The thermal part manufacturing method 6. ultralow temperature cold insulation according to claim 2 breaks, it is characterised in that:
    5th step is thermally compressed the described first outer leather goods being applied by roll-to-roll mode.
  7. The thermal part manufacturing method 7. ultralow temperature cold insulation according to claim 2 breaks, it is characterised in that:
    8th step forms the institute between the described first outer leather goods and the second outer leather goods by roll-to-sheet mode State adhered layer.
  8. The thermal part manufacturing method 8. ultralow temperature cold insulation according to claim 2 breaks, it is characterised in that:
    6th step is 1 hour to 2 hours dry to the first outer leather goods being applied at 150 DEG C to 180 DEG C.
  9. The thermal part 9. a kind of ultralow temperature cold insulation breaks, including surround the first temperature fluid flowing pipe to limit the heat of the fluid The first external outer leather goods is discharged by the pipe and surrounds the outside of the first outer leather goods to prevent water point from seeping from outside The second outer leather goods of the described first outer leather goods is arrived thoroughly, it is characterised in that:
    The first outer leather goods prevents the fluid from first temperature of the internal flow of the pipe to be transmitted to the heat of the pipe Cause the temperature of the described second outer leather goods to drop to second temperature hereinafter,
    The second outer leather goods surrounds the described first outer leather goods and the outside of the described first outer leather goods is not exposed on the external to prevent Moisture is flowed into the described first outer leather goods from outside.
  10. The thermal part 10. ultralow temperature cold insulation according to claim 9 breaks, it is characterised in that:
    According to the outside diameter d 1 of every linear meter(lin.m.) heat loss Q of the described first outer leather goods occurred by the described first outer leather goods, the pipe And the thermal conductivity k1, the first temperature c1 of the first outer leather goods and the size t1 of the thickness of the described first outer leather goods meet Formula:
    Wherein, the unit of every linear meter(lin.m.) heat loss of the described first outer leather goods is W/m, and the unit of the outer diameter of the pipe is m, described The unit of the thermal conductivity of one outer leather goods is W/mK, and the unit of first temperature is DEG C.
  11. The thermal part 11. ultralow temperature cold insulation according to claim 9 breaks, it is characterised in that:
    The second temperature is -10 DEG C,
    The first outer leather goods is melamine foamed plastic, and the second outer leather goods is flexible elastomer foam.
  12. The thermal part 12. ultralow temperature cold insulation according to claim 10 breaks, it is characterised in that:
    The hydrophobic degree of the described second outer leather goods measured by the method in accordance with KS-F4714 is 98% or more.
CN201810938412.8A 2017-11-08 2018-08-17 Ultra-low temperature cold insulation and heat insulation component and manufacturing method thereof Active CN109751482B (en)

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