CN215218636U - Detection equipment for heat insulation performance of heat insulation material - Google Patents
Detection equipment for heat insulation performance of heat insulation material Download PDFInfo
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- CN215218636U CN215218636U CN202121352409.1U CN202121352409U CN215218636U CN 215218636 U CN215218636 U CN 215218636U CN 202121352409 U CN202121352409 U CN 202121352409U CN 215218636 U CN215218636 U CN 215218636U
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Abstract
The utility model provides a detection device for the heat insulation performance of a heat insulation material, a constant temperature cold plate and a constant temperature hot plate are oppositely arranged, and a heat flow sensor is pasted on one side of the constant temperature cold plate facing the constant temperature hot plate; the first temperature sensors are arranged on one side, facing the constant temperature cold plate, of the constant temperature hot plate at intervals along the length direction, and the second temperature sensors are arranged on one side, facing the constant temperature hot plate, of the constant temperature cold plate at intervals along the length direction; a high-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature hot plate, which is back to the constant-temperature cold plate, and a low-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature cold plate, which is back to the constant-temperature hot plate; a placing space of a sample to be tested is formed between the constant temperature hot plate and the constant temperature cold plate, one side of the sample to be tested along the thickness direction is tightly attached to the constant temperature hot plate, and the other side of the sample to be tested is tightly attached to the heat flow sensor; the signal output end of the heat flow sensor is connected to the data acquisition instrument. The detection equipment for the heat insulation performance of the heat insulation material provides a hardware foundation for quickly detecting the heat insulation performance.
Description
Technical Field
The utility model relates to a check out test set, especially thermal insulation material's check out test set.
Background
The vacuum insulation panel is composed of a membrane material, a core material and a getter material, wherein the core material is the core of the vacuum insulation panel, the core material is mainly made of materials with high void ratio, communicated air holes and low heat conductivity coefficient, through years of exploration practice, glass fiber and glass wool are better materials, the cost is lower, the manufacturing technology is mature, and the vacuum insulation panel manufactured by the vacuum insulation panel is widely applied to the fields of refrigerators, cold chain insulation boxes, building walls, refrigerated containers and the like.
For the vacuum insulation panel, the thermal conductivity is an important index for measuring the performance of the vacuum insulation panel, and therefore the thermal conductivity of the vacuum insulation panel needs to be tested in the production process. At present, the heat conductivity coefficient of the heat insulation material is measured at home and abroad mainly by using a steady-state heat flow method. The steady state method has the disadvantages of harsh experimental conditions, long measurement time and high requirements on samples; in order to obtain accurate heat flow, the constant temperature and humidity condition of the test system needs to be strictly ensured, and in order to ensure the uniformity of the temperature field of the whole heating surface, the requirement on the flatness of the surface of a sample is high. Therefore, the method can only be used for measuring the heat conductivity coefficient of a small amount of heat-insulating materials in a laboratory, and cannot be applied to the online measurement of a large number of samples.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a thermal insulation material heat-proof quality's check out test set is provided, provides the hardware basis for the short-term test heat-proof quality.
In order to solve the technical problem, the utility model provides a thermal insulation material heat-proof quality's check out test set, include: the device comprises a constant-temperature hot plate, a constant-temperature cold plate, a first temperature sensor, a second temperature sensor and a heat flow sensor;
the constant temperature cold plate and the constant temperature hot plate are oppositely arranged, and the heat flow sensor is adhered to one side of the constant temperature cold plate, which faces the constant temperature hot plate; the first temperature sensors are arranged on one side, facing the constant temperature cold plate, of the constant temperature hot plate at intervals along the length direction, and the second temperature sensors are arranged on one side, facing the constant temperature hot plate, of the constant temperature cold plate at intervals along the length direction; a high-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature hot plate, which is back to the constant-temperature cold plate, and a low-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature cold plate, which is back to the constant-temperature hot plate;
a placing space of a sample to be tested is formed between the constant temperature hot plate and the constant temperature cold plate, one side of the sample to be tested along the thickness direction is tightly attached to the constant temperature hot plate, and the other side of the sample to be tested is tightly attached to the heat flow sensor; and the signal output end of the heat flow sensor is connected to the data acquisition instrument.
In a preferred embodiment: the heat flow sensor is a thin film heat flow sensor.
In a preferred embodiment: the heat flow sensor is adhered to one side of the constant temperature cold plate facing the constant temperature hot plate through heat conduction double-sided adhesive.
In a preferred embodiment: the constant temperature hot plate is driven by the air cylinder to move towards the direction close to the tested sample.
In a preferred embodiment: the constant temperature hot plate is driven by an electric cylinder to move towards the direction close to the tested sample.
In a preferred embodiment: the data acquisition instrument is a high-resolution data acquisition instrument, and the resolution precision is 0.0005 mv.
In a preferred embodiment: the test sample was a vacuum insulation panel.
In a preferred embodiment: the first temperature sensors are in one-to-one correspondence with the second temperature sensors, and the setting positions are the same.
Compared with the prior art, the technical scheme of the utility model possess following effect:
1. the utility model provides a thermal insulation material heat-proof quality's check out test set provides the hardware basis for judging thermal insulation material's heat-proof quality fast more, provides probably for thermal insulation material manufacture factory examines entirely to the product.
2. The utility model provides a thermal insulation material heat-proof quality's check out test set uses thin film heat flow sensor and ultra-thin heat conduction double faced adhesive tape can avoid as far as possible because the thermal current is along the measuring error who is brought by the loss of test appearance parallel surface, guarantees the one-dimensional transmission of thermal current.
3. The utility model provides a thermal insulation material heat-proof quality's check out test set, high temperature constant temperature circulation tank and low temperature constant temperature circulation tank select for use high accuracy temperature controller, and install high accuracy temperature sensor on constant temperature hot plate and constant temperature cold drawing, with the temperature control of constant temperature hot plate and constant temperature cold drawing in setting for the temperature +/-0.05 ℃, can reduce as far as possible because constant temperature hot plate and constant temperature cold drawing temperature error and the measuring error who brings.
4. The utility model provides a check out test set of thermal insulation material heat-proof quality, constant temperature hot plate and the laminating of being surveyed the sample adopt cylinder or electric cylinder drive, can adjust constant temperature hot plate and the pressfitting power of being tested the sample, under the prerequisite of not destroying being tested the sample, can strengthen pressfitting power as far as possible with constant temperature hot plate and by the gas outgoing between the test sample, reduce constant temperature hot plate and by the gas between the test sample, constant temperature cold drawing and by the gas between the test sample.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be a wall-mounted connection, a detachable connection, or an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific case.
Referring to fig. 1, the present invention provides an apparatus for detecting thermal insulation property of thermal insulation material, including: the device comprises a constant temperature hot plate 1, a constant temperature cold plate 2, a first temperature sensor 3, a second temperature sensor 4 and a heat flow sensor 5;
the constant-temperature cold plate 2 and the constant-temperature hot plate 1 are oppositely arranged, and the heat flow sensor 5 is adhered to one side, facing the constant-temperature hot plate 1, of the constant-temperature cold plate 2; the first temperature sensors 3 are arranged at intervals along the length direction on one side of the constant temperature hot plate 1 facing the constant temperature cold plate 2, and the second temperature sensors 4 are arranged at intervals along the length direction on one side of the constant temperature cold plate 2 facing the constant temperature hot plate 1; the first temperature sensors 3 correspond to the second temperature sensors 4 one by one, and the setting positions are the same. A high-temperature constant-temperature circulating water tank 6 is arranged on one side of the constant-temperature hot plate 1, which is back to the constant-temperature cold plate 2, and a low-temperature constant-temperature circulating water tank 7 is arranged on one side of the constant-temperature cold plate 2, which is back to the constant-temperature hot plate 1; high-temperature constant-temperature circulating water tank 6 and low-temperature constant-temperature circulating water tank 7 select high-precision temperature controller for use, and install high-precision temperature sensor on constant temperature hot plate 1 and constant temperature cold drawing 2, can be with the temperature control of constant temperature hot plate 1 and constant temperature cold drawing 2 in setting for the temperature 0.05 ℃ like this, can minimize because constant temperature hot plate 1 and constant temperature cold drawing 2 temperature error and the measuring error that brings.
A placing space of a sample to be tested is formed between the constant temperature hot plate 1 and the constant temperature cold plate 2, one side of the sample to be tested along the thickness direction is tightly attached to the constant temperature hot plate 1, and the other side of the sample to be tested is tightly attached to the heat flow sensor 5; and the signal output end of the heat flow sensor 5 is connected to a data acquisition instrument.
In this embodiment, the heat flow sensor 5 is a thin film heat flow sensor 5. The heat flow sensor 5 is adhered to one side of the constant-temperature cold plate 2 facing the constant-temperature hot plate 1 through heat conduction double-sided adhesive. The film heat flow sensor 5 and the ultrathin heat conduction double-sided adhesive tape can avoid measurement errors caused by loss of heat flow along the parallel surface of the tested sample as much as possible, and one-dimensional transfer of the heat flow is guaranteed.
The thermostatic hot plate 1 is driven by an air cylinder or an electric cylinder to move towards the direction close to the tested sample. The laminating of constant temperature hot plate 1 and the sample of being surveyed adopts cylinder or electric cylinder drive, can adjust the pressfitting power of constant temperature hot plate 1 and the sample of being tested, under the prerequisite of not destroying the sample of being tested, can increase pressfitting power as far as possible and discharge the gas between constant temperature hot plate 1 and the sample of being tested, reduce the gas between constant temperature hot plate 1 and the sample of being tested, constant temperature cold plate 2 and the sample of being tested between the gas.
The data acquisition instrument is a high-resolution data acquisition instrument, and the resolution precision is 0.0005 mv.
In this embodiment, the test sample is a vacuum insulation panel.
When the device is used, 3 heat insulating materials with different known heat conductivity coefficients are selected and placed on the detection equipment for testing, and the heat flow signals read by the data acquisition instrument and the heat conductivity coefficients of the 3 heat insulating materials are used as calibration parameters to make a fitting formula;
and then the sample to be tested is placed on the detection equipment, and the heat conductivity coefficient of the sample can be calculated by substituting the heat flow signal collected by the data acquisition instrument into a fitting formula. Then, whether the thermal conductivity of the vacuum insulation panel meets the requirement or not can be judged, and a rapid judgment is carried out. Therefore, although the method can not accurately calculate the heat conductivity coefficient, the method can quickly and quickly judge the heat insulation performance of the heat insulation material, and provides possibility for the heat insulation material manufacturer to carry out full inspection on the product.
The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.
Claims (8)
1. An equipment for detecting heat insulation performance of a heat insulation material is characterized by comprising: the device comprises a constant-temperature hot plate, a constant-temperature cold plate, a first temperature sensor, a second temperature sensor and a heat flow sensor;
the constant temperature cold plate and the constant temperature hot plate are oppositely arranged, and the heat flow sensor is adhered to one side of the constant temperature cold plate, which faces the constant temperature hot plate; the first temperature sensors are arranged on one side, facing the constant temperature cold plate, of the constant temperature hot plate at intervals along the length direction, and the second temperature sensors are arranged on one side, facing the constant temperature hot plate, of the constant temperature cold plate at intervals along the length direction; a high-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature hot plate, which is back to the constant-temperature cold plate, and a low-temperature constant-temperature circulating water tank is arranged on one side of the constant-temperature cold plate, which is back to the constant-temperature hot plate;
a placing space of a sample to be tested is formed between the constant temperature hot plate and the constant temperature cold plate, one side of the sample to be tested along the thickness direction is tightly attached to the constant temperature hot plate, and the other side of the sample to be tested is tightly attached to the heat flow sensor; and the signal output end of the heat flow sensor is connected to the data acquisition instrument.
2. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the heat flow sensor is a thin film heat flow sensor.
3. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the heat flow sensor is adhered to one side of the constant temperature cold plate facing the constant temperature hot plate through heat conduction double-sided adhesive.
4. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the constant temperature hot plate is driven by the air cylinder to move towards the direction close to the tested sample.
5. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the constant temperature hot plate is driven by an electric cylinder to move towards the direction close to the tested sample.
6. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the data acquisition instrument is a high-resolution data acquisition instrument, and the resolution precision is 0.0005 mv.
7. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the test sample was a vacuum insulation panel.
8. The apparatus for detecting the thermal insulation performance of an insulating material according to claim 1, wherein: the first temperature sensors are in one-to-one correspondence with the second temperature sensors, and the setting positions are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352409.1U CN215218636U (en) | 2021-06-17 | 2021-06-17 | Detection equipment for heat insulation performance of heat insulation material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121352409.1U CN215218636U (en) | 2021-06-17 | 2021-06-17 | Detection equipment for heat insulation performance of heat insulation material |
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| CN215218636U true CN215218636U (en) | 2021-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117607198A (en) * | 2024-01-24 | 2024-02-27 | 宁波纺织仪器厂 | Fabric thermal resistance measuring device and measuring equipment |
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2021
- 2021-06-17 CN CN202121352409.1U patent/CN215218636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117607198A (en) * | 2024-01-24 | 2024-02-27 | 宁波纺织仪器厂 | Fabric thermal resistance measuring device and measuring equipment |
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