CN108896605B - Equivalent thermal resistance and heat conductivity coefficient detection equipment of heat preservation and heat insulation coating for building - Google Patents
Equivalent thermal resistance and heat conductivity coefficient detection equipment of heat preservation and heat insulation coating for building Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
- 238000009413 insulation Methods 0.000 title claims abstract description 35
- 238000004321 preservation Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title abstract description 22
- 239000003973 paint Substances 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims abstract description 14
- 230000004907 flux Effects 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The invention discloses equipment for detecting equivalent thermal resistance and thermal conductivity of heat-insulating paint for buildings, wherein the equipment comprises a heat source and an insulation box, wherein a partition plate is arranged in the insulation box, and divides the insulation box into two mutually independent test cavities and a heating cavity; the heat source is communicated with the heating cavity to provide stable heat energy for the heating cavity, a mounting frame is arranged in the testing cavity, two or more than two layers of mounting brackets are arranged on the mounting frame, a data acquisition temperature heat flow density device is arranged on the mounting frame, and the top part of the box body of the heat preservation box is a coating plate to be tested and a contrast coating plate. The invention can quantitatively design the equivalent thermal resistance of the heat-insulating coating for building, which can distinguish the true and false of the heat-insulating coating according to the usage units and the detection mechanism of the equivalent thermal resistance. The global demand has the advantages that the detection equipment is generated as soon as possible, the application market prospect is very good, and the popularization value is very good.
Description
Technical Field
The invention belongs to the technical field of building coating detection, and particularly relates to detection equipment for heat radiation blocking equivalent thermal resistance and equivalent thermal conductivity coefficient of a heat insulation coating for a building.
Background
The heat-insulating paint for building has high efficiency, heat-insulating and heat-insulating effect on sunlight, far-middle near infrared wide-wave radiation and heat radiation, excellent ultraviolet resistance, supernormal pollution resistance, good adhesive force, washing resistance, acid-base corrosion resistance, mildew resistance and other performances, and is a novel heat-insulating material for building, which has excellent performance, strong applicability and high technical content in the heat-insulating and heat-insulating field of modern building.
The cost of the energy-saving functional paint for the building is much higher than that of the common paint, but the functional paint and the common paint cannot be identified by naked eyes after construction, and how to detect the difference of the paints and the functions of the paints become a big problem.
The detection device and the detection method of equivalent thermal resistance of the heat-insulating paint, which are found by searching, have the patent publication number CN102980911A, are particularly characterized in that a thermocouple and a solar radiation sensor are connected with a detector through signals, and the detector is connected with a computing terminal through signals; the detection method comprises the steps of respectively sticking thermocouples with metal sheets by adhesive on the middle parts of the outer surfaces of a plurality of outer walls; after the adhesive is dried and firm, respectively coating heat-insulating paint and common paint on the outer surface of the outer wall; the outer wall body to be detected is enabled to receive solar radiation, and a solar radiation sensor is used for collecting data; and after seven days of continuous acquisition, the solar radiation sensor selects four days of effective data to transmit to the computing terminal, and the equivalent thermal resistance of the thermal insulation coating of the detection wall body is calculated by combining computing software. By means of the mode, the technology can accurately collect data to participate in calculation according to conditions required by on-site detection of the heat-insulating coating and a on-site thermal detection method, and can effectively output a temperature curve for analysis to calculate the equivalent thermal resistance of the heat-insulating coating.
The above technique is an unstable test method. The error is as large as 50% due to weather influence, and the test time is long. The cost is high, the method is not suitable for materials which are only suitable for conduction and heat transfer, the method is not suitable for thermal resistance test of radiation heat insulation materials, and other detection equipment and methods which can detect the energy-saving function of the coating are not available in the prior art. Therefore, the false paint and the inferior paint are accepted to be used, so that huge losses are caused for the country and the user, and the thermal insulation paint really has excellent global advanced high-tech environment-friendly materials and cannot be rapidly tested and effectively popularized.
Disclosure of Invention
In order to overcome the defects, the inventor of the invention continuously reforms and innovates through long-term exploring attempts and multiple experiments and efforts, and provides an equivalent thermal resistance and heat conductivity coefficient detection device of the heat insulation coating for the building.
The specific technical scheme is as follows: the equipment for detecting the equivalent thermal resistance and the thermal conductivity coefficient of the heat-insulating coating for the building comprises a heat source and an insulation box, wherein a partition plate (namely a bottom plate described herein) is arranged in the insulation box, and divides the insulation box into two mutually independent test cavities and a heating cavity; the heat source is communicated with the heating cavity to provide stable heat energy for the heating cavity, a mounting frame is arranged in the testing cavity, two or more than two layers of mounting plates are arranged on the mounting frame, a data acquisition device is arranged on the mounting plate, and the top part of the box body of the heat insulation box is a coating plate to be tested and a contrast coating plate.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the data acquisition device is a thermocouple and a heat flux density sheet, wherein the thermocouple is connected with the temperature recorder, and the heat flux density sheet is connected with the heat flux density recorder.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the heat source is a boiling water constant temperature boiler, the boiling water constant temperature boiler is communicated with the heat preservation box through a water inlet pipe and a water outlet pipe, and water circulation heat supply is formed, so that the heat in the heat preservation box is relatively stable.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the heating cavity is composed of an inner layer and an outer layer, the inner layer is made of stainless steel, the outer layer is made of heat insulation materials, and the testing cavity is composed of a nonmetal heat insulation plate.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the mounting plate in the test cavity is a meter-shaped nonmetallic material plate.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the partition board and the top plate at the inner top of the incubator are both standard plastic plates or glass.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the distance between the partition plate and the top plate at the top in the incubator is greater than 1000mm, and the length of the incubator body is greater than 2000mm.
The invention relates to equipment for detecting equivalent thermal resistance and heat conductivity coefficient of heat-insulating paint for buildings, which further adopts the technical scheme that: the heating cavity is internally provided with a supporting frame, the supporting frame is clung to the peripheral wall of the heating cavity, and the partition plate is arranged on the supporting frame.
Compared with the prior art, the technical scheme of the invention has the following advantages/beneficial effects:
1) The invention has simple test and short test time, and only needs 7 minutes.
2) The invention is in the closed test under the same environment during the test, the accuracy is high.
3) The device has the advantages of simple structure, low cost and low detection cost, and is suitable for wide popularization.
The invention can quantitatively design the equivalent thermal resistance of the thermal insulation coating for the building, and can distinguish the authenticity and the quality of the thermal insulation coating according to the use units and the detection mechanisms of the equivalent thermal resistance. The global demand has the design as soon as possible, has very good application market prospect and has very good popularization value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the apparatus of the present invention.
FIG. 3 is a table of equivalent thermal resistance tests for thermal insulation coatings.
In the figure: incubator 1, test chamber 101, heating chamber 102, supporting frame 103, baffle 2, mounting bracket 3, mounting plate 301, heat flux density sheet 4, thermocouple 5, roof 6, heat source 7, inlet tube 701, outlet tube 702.
Detailed Description
The drawings in the embodiments of the present invention are explained in detail to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments in the invention, which a person of ordinary skill in the art would achieve without inventive effort are within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in the following figures.
Examples
As shown in fig. 1 and 2, the invention provides equipment for detecting equivalent thermal resistance and thermal conductivity coefficient of a heat preservation and insulation coating for a building. The detection equipment comprises a heat source 7 and an incubator 1, wherein the heat source is communicated with the heating cavity and provides stable heat energy for the heating cavity. Wherein the heat source 7 is a boiling water constant temperature boiler. Then, a supporting frame 103 is arranged in the heat preservation box 1, the supporting frame 103 is tightly attached to the inner wall of the heat preservation box 1, and the height of the supporting frame is smaller than the height of the inner space of the heat preservation box 1. Then, a partition plate 2 made of a plastic plate (i.e., a bottom plate as described herein) is mounted on the support frame 103, so that the partition plate 2 divides the incubator 1 into two mutually independent spaces, i.e., a test chamber 101 and a heating chamber 102, respectively. The heating chamber 102 is then communicated with a boiling water constant temperature boiler through a water inlet pipe 701 and a water outlet pipe 702, and water circulation heating is formed to enable the heat in the incubator to be relatively stable. The heating cavity 102 is composed of two layers, wherein the outer layer is a heat insulation material layer, and the inner layer is a stainless steel layer, so that heat conduction inside and heat insulation outside can be realized.
The test cavity 101 is internally provided with a mounting frame 3, and the mounting frame 3 adopts a stainless steel frame. Then, two or more than two layers of meter-shaped nonmetallic material mounting plates 301 are arranged on the mounting frame 3, a heat flow density sheet 4 and a thermocouple 5 for acquiring related data are arranged on the mounting plate 301, and the mounting plate 301 adopts nonmetallic material plates, so that the test result is more accurate. When in installation, the two ends of the heat flux density sheet 4 are respectively provided with a thermocouple 5, the thermocouples 5 are connected with a temperature recorder, and the heat flux density sheet 4 is connected with the heat flux density recorder. Then, each two thermocouples are matched and combined with a heat flux density sheet to form a test point which is mainly used for detecting the space temperature and the heat flux of the paint in unit time. Multiple test points are installed on each layer of the mounting plate 301 according to the requirement so that the collected data is more accurate, and the test points between each layer are positioned on the same vertical line. The box top plate of the insulation box is a top plate 6 made of plastic plates, and the top plate 6 is divided into a coating plate to be tested and a contrast coating plate. When the device is specifically arranged, the distance between the top plate 6 and the partition plate 2 is larger than 1000mm, the length of the box body is larger than 2000mm, and the distance is large because of the large size and the small testing error.
In this embodiment, the top panel (top panel) of the incubator 1 is a standard plastic panel, each surface of the upper test cavity is an insulation panel, and each panel of the lower heating cavity is composed of an outer standard insulation panel and an inner standard stainless steel panel. The equivalent thermal resistance index thus measured is not affected by the material difference.
The specific working principle of the detection equipment is that the average value of the thermal resistance of each measuring point of the paint part to be detected is subtracted from the average value of the thermal resistance of each measuring point of the paint part within a certain time, and the equivalent thermal resistance of the heat-insulating paint for the building is obtained.
The specific detection method of the invention is as follows:
Which comprises the following steps: coating the area of one half of the top plate 6 (the paint plate to be tested) in the equipment with paint to be tested, and arranging a common plastic plate light plate or contrast paint on the area of the other half (the contrast paint plate); all the coatings in this example had a thickness of 0.3mm, and the difference in thickness was controlled to be within 10% due to manual application.
Preheating equipment: starting a heat source until the temperature in the heat preservation box is stable;
and (3) data acquisition: acquiring the required heat flux density through a data acquisition device;
Calculating equivalent thermal resistance: the calculation principle is as follows: the calculation formula of the equivalent thermal resistance Re of the heat-insulating coating for heat insulation and heat radiation blocking of the building is as follows:
in the formula:
: the equivalent of the radiant heat flux density in the vertical direction between the plastic plate coated with the heat-preserving heat-insulating coating and the bottom plate is the thermal resistance of the heat conduction heat flux density;
: the equivalent of the radiant heat flux density in the vertical direction between the plastic plate and the bottom plate without the heat preservation and heat insulation coating is the thermal resistance of the heat conduction heat flux density;
Wherein the method comprises the steps of AndThe algorithm of (a) is the same, specifically
In the formula: s is the distance between each measuring point and the corresponding measuring point (namely the distance between the two measuring points when measuring the temperature difference);
Delta T is the temperature difference between the test points;
Δt is the interval time of each test;
q is the heat flux density;
ΔX is the spacing between test points.
The method for calculating the equivalent thermal resistance of the heat-insulating paint for the building comprises the following steps:
Is according to Fu Lishe's law:
q is conduction heat per unit time; a is the area of a heat transfer bottom plate (a partition plate); lambda is the coefficient of thermal conductivity; is a temperature gradient.
The heat transferred to the roof i portion (the uncoated roof portion or the coated roof portion of the comparative coating) during Δt time is thus obtained: …………①
heat transferred to the roof section ii (the section of the roof coated with the coating to be measured) during Δt time:
…………②
Lambda 1、λ2 is the thermal conductivity of the top plate I and II, respectively, and A 1、A2 is the area of the top plate I and II, respectively.
Meanwhile, when only the heat transferred in the vertical direction is considered in calculation: and has(A is the heat transfer floor area/baffle area);
Thermal resistance of part I transferred over Δt time ……③
Thermal resistance of part II transferred over delta t time ……④
(Δt is the test interval time)
The ③ is substituted into ①;④ and ② is substituted into
…… ……⑤
…… ……⑥
Lambda 1 is the equivalent heat conductivity of the I part of the top plate; lambda 2 is the equivalent heat conductivity coefficient of the II part of the top plate;
then there are: 、
Top plate part i:
can obtain …………⑦
The specification is as follows: (thermal resistance R' is equivalent thermal resistance of the top plate I portion) (thermal resistance R "is equivalent thermal resistance of the top plate II portion)
The average equivalent thermal resistance of the top plate ii portion is:
N in the formula represents: the number of the thermal resistances of the part I or the part II is the same.
Therefore, the equivalent thermal resistance of the obtained heat-insulating paint is as follows: the average equivalent thermal resistance of the heat-insulating paint is as follows: . Equivalent thermal conductivity of the heat-insulating paint: /(I) 。
Thereby obtaining the equivalent thermal resistance (average equivalent thermal resistance) of the building heat-insulating paint.
In the above formula: i is the ith measuring point of the I part of the top plate; j is the j-th measuring point of the II part of the top plate; the top plate I is not coated with paint or the paint is different from the paint (heat insulating paint for building) on the top plate II.
The detection method is that when the room temperature of the detection equipment is 25 ℃, the water content in the air is as follows: completed in 60% ± 5%.
In the embodiment, three different coatings of the light plate, the heat-insulating coating and the reflective heat-insulating coating are selected for test, the test points are an upper layer and a lower layer, and the thermocouple and the current density sheet are only provided with the upper layer and the lower layer, so that S in the formula is the interval between the bottom plate (namely the partition plate 2) and the top plate at the moment. The detection situation is shown in fig. 3. FIG. 3 is a chart showing the equivalent thermal resistance test of the heat-insulating paint.
The data in the table of figure 3 is then sleeved into a calculation formula, so that the equivalent thermal resistance of various materials can be calculated. Meanwhile, the data in the table can show that the detection method has the technical advantages of rapidness, accuracy and the like, and is completely suitable for detecting the performance of the heat-insulating coating, thereby distinguishing the authenticity.
The equivalent thermal resistances described herein are: the heat radiation heat flux density of each test point in the box space is equivalent to the heat resistance calculated by the heat conduction heat flux density in the space.
The equivalent thermal resistance is: because the heat-insulating coating is a mechanism and an effect of blocking heat radiation, the temperature of a space vertically corresponding to the part coated with the heat-insulating coating is increased, and the equivalent thermal resistance is equivalent to that of the heat-insulating coating and is regarded as the equivalent thermal resistance of the heat-insulating coating.
The equivalent thermal conductivity is: and calculating the heat conductivity coefficient of each measuring point in the box body space by equivalent thermal resistance.
The equivalent thermal conductivity is: the thermal conductivity calculated from the equivalent thermal resistance of the thermal insulation coating and the thickness of the thermal insulation coating is the equivalent thermal conductivity (virtual thermal conductivity) of the thermal insulation coating.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (8)
1. The utility model provides a thermal insulation coating's for building equivalent thermal resistance and coefficient of heat conductivity check out test set which characterized in that: the device comprises a heat source and an incubator, wherein a partition board is arranged in the incubator, and divides the incubator into two mutually independent test cavities and a heating cavity; the heat source is communicated with the heating cavity to provide stable heat energy for the heating cavity, a mounting frame is arranged in the test cavity, two or more than two layers of mounting plates are arranged on the mounting frame, a data acquisition device is arranged on each layer of mounting plate, and the top part of the box body of the heat insulation box is a coating plate to be tested and a contrast coating plate; the distance between the partition plate and the top plate of the incubator is more than 1000mm, and the length of the incubator is more than 2000mm; the data collector is a thermocouple and a heat flux density sheet;
The calculation formula of the equivalent thermal resistance of the heat-insulating paint is as follows:
the calculation formula of the average equivalent thermal resistance of the heat-insulating paint is as follows:
Wherein:
wherein: the thermal resistance R 'is equivalent thermal resistance of the comparative coating plate, the thermal resistance R' is equivalent thermal resistance of the coating plate to be tested, The equivalent of the radiant heat flux density in the vertical direction between the plastic plate and the bottom plate for coating the heat-insulating coating is the thermal resistance of the heat conduction heat flux density; /(I)The equivalent of the radiant heat flux density in the vertical direction between the plastic plate and the bottom plate without the heat preservation and heat insulation coating is the thermal resistance of the heat conduction heat flux density; delta T is the temperature difference between the test points; q is the heat flux density; Δx is the spacing between test points; s is the distance between each test point and the corresponding test point, n is the number of thermal resistances of the comparison coating plate or the coating plate to be tested, and the number of thermal resistances of the two parts is the same.
2. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat-insulating coating for the building according to claim 1, wherein the heat source is a boiling water constant temperature boiler, and the boiling water constant temperature boiler is communicated with the heat-insulating box through a water inlet pipe and a water outlet pipe, so that water circulation heat supply is formed, and the heat in the heat-insulating box is relatively stable.
3. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat preservation and heat insulation coating for the building according to claim 1, wherein the heating cavity part is composed of an inner layer and an outer layer, wherein the inner layer is made of stainless steel, the outer layer is made of heat preservation materials, and the testing cavity is composed of nonmetal heat preservation plates.
4. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat preservation and heat insulation coating for the building according to claim 1, wherein the mounting plate in the test cavity is a meter-shaped nonmetallic material plate.
5. The apparatus for detecting equivalent thermal resistance and thermal conductivity of heat insulating paint for building according to claim 1, wherein said partition plate and said top plate of heat insulating box are plastic plates.
6. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat preservation and heat insulation coating for the building according to claim 1, wherein a supporting frame is arranged in the heating cavity, the supporting frame is clung to the peripheral wall of the heating cavity, and the partition plate is arranged on the supporting frame.
7. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat preservation and heat insulation coating for the building according to claim 1, wherein the thermocouple is connected with a temperature recorder.
8. The device for detecting the equivalent thermal resistance and the thermal conductivity of the heat preservation and heat insulation coating for the building according to claim 1, wherein the heat flux density sheet is connected with a heat flux density recorder.
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| CN109187629B (en) * | 2018-09-04 | 2021-04-09 | 成都市科创节能材料有限公司 | Equivalent thermal resistance detection method of heat-insulating coating for building |
| CN110174432A (en) * | 2019-06-26 | 2019-08-27 | 重庆理工大学 | The thermophoresis experimental provision of Electronic Packaging microbonding point |
| CN110397937B (en) * | 2019-07-05 | 2020-12-01 | 中国特种设备检测研究院 | Measurement design system and design method for waste incineration boiler wall heat insulation structure |
| CN110568262A (en) * | 2019-07-19 | 2019-12-13 | 成都市科创节能材料有限公司 | Equipment and method for steady-state detection of heat-insulating coating |
| CN113533417B (en) * | 2020-04-20 | 2022-10-14 | 广西壮族自治区建筑科学研究设计院 | Method for testing heat preservation effect of reflective heat insulation coating heat preservation daub composite heat preservation system |
| CN111398344B (en) * | 2020-04-30 | 2024-09-27 | 亚士漆(上海)有限公司 | Detection device and method for equivalent thermal resistance of heat-preserving heat-insulating thin material |
| CN112577992A (en) * | 2020-11-04 | 2021-03-30 | 亚士漆(上海)有限公司 | Thermal radiation testing device and method |
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| CN1677101A (en) * | 2004-04-02 | 2005-10-05 | 中国科学技术大学 | Steady-state composite plate method for measuring coating heat conductivity coefficient and its measuring device |
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