CN115639245A - Building heat preservation and insulation material performance detection device - Google Patents

Abstract

The application discloses be applied to and detect technical field's a building thermal insulation material performance detection device, this detection device sets up the choking ring that has thermal insulation performance through the installation department at opening insulation can and test piece, and set up interval distribution's heat insulating board and leak detection bag in choking the ring, in the testing process, when taking place the local seal bad situation between test piece and the opening insulation can, on the one hand can effectively block opening insulation can and the external exchange that takes place hot and cold air current through choking the ring, be difficult for influencing the inside temperature variation of opening insulation can, test piece N's detection accuracy has effectively been guaranteed, on the other hand, outside cold or hot gas current gets into after choking the ring is inside, can cause the leak detection bag in the corresponding region to take place temperature sensing deformation, after detecting, look over each form change of examining the leak detection bag through the contrast, can reflect the bad position region indirectly, provide attention to warning for the installation detection of follow-up test piece N.

Description

Building heat preservation and insulation material performance detection device

Technical Field

The application relates to the technical field of detection, in particular to a building heat preservation and insulation material performance detection device.

Background

Building heat preservation is a measure for reducing the indoor heat of a building to be dissipated outdoors, and plays an important role in creating a suitable indoor heat environment and saving energy. The building heat preservation mainly takes measures from the external enclosure structure of the building, simultaneously reduces the measure of the indoor heat of the building to be emitted to the outdoor, and plays an important role in creating a proper indoor heat environment and saving energy.

At present, the heat insulation performance of the material is detected by adopting a calibration hot box based on a stable heat transfer principle. One side of the test piece is a hot box which simulates indoor climate conditions of a heating building in winter, and the other side of the test piece is a cold box which simulates outdoor climate conditions in winter. Sealing the gap of the test piece, and correspondingly calculating to obtain the heat transfer coefficient of the test piece by measuring the temperature change of the cold and hot box within a certain time, the area of the test piece, the heat loss of the outer wall of the cold and hot box and the frame of the test piece and the like.

In the process of detecting the heat insulation performance of the building material, the tightness between the test piece and the test piece frame is one of important factors for determining the accuracy of the detection result, when the sealing between the test piece and the test piece frame is poor, continuous tiny gas convection between a cold box and a hot box can be caused, the detection result is seriously influenced, and the tiny gas leakage part is difficult to be found by a detector, so that the difficulty is caused for the sealed installation of a subsequent test piece.

Disclosure of Invention

The inner wall of the inner cavity is far away from the main temperature sensor, the mounting frame communicated with the outside is arranged on the inner wall of the inner cavity, the inner wall of the mounting frame is fixedly connected with a sealing strip, a choke ring is arranged inside the inner cavity and comprises a semi-ring shell and an extension plate, the outer edge end of the opening of the semi-ring shell is fixedly connected to the inner wall of the inner cavity, the inner edge end of the opening is fixedly connected with the extension plate, the extension plate is positioned on the inner side of the mounting frame, a plurality of heat insulation plates and a plurality of leakage detection bags are arranged inside the semi-ring shell, and the heat insulation plates and the leakage detection bags are uniformly distributed at intervals;

set up the choked flow ring that has thermal insulation performance through the installation department at opening insulation can and test piece, and set up interval distribution's heat insulating board and examine the hourglass bag in choked flow ring, in the testing process, when taking place the local seal unfavorable condition between test piece and the opening insulation can, on the one hand can effectively block opening insulation can and the external exchange that takes place cold and hot air current through choked flow ring, be difficult for influencing the inside temperature variation of opening insulation can, the detection accuracy of test piece N has effectively been guaranteed, on the other hand, external cold or hot air current get into choked flow ring inside after, can cause the leak hunting bag in the corresponding region to take place temperature sensing deformation, after the detection is accomplished, look over each form change of examining the hourglass bag through the contrast, can be indirect sealed bad position region, provide attention warning for the installation of follow-up test piece N detects.

Optionally, the heat insulation plate includes a transverse partition plate and a vertical partition plate, the vertical partition plate is located inside the semi-ring shell and fixedly connected with the semi-ring shell, the outer end of the transverse partition plate is fixedly connected with the inner wall of the inner cavity, and the transverse partition plate is fixedly connected between the extension plate and the inner wall of the installation frame.

Optionally, the leak hunting bag includes the flexible bag body, and the open end fixedly connected with of the flexible bag body seals the rope, and the inside sliding connection of sealing rope has the fag end, and the both ends of fag end extend to the fag end outside, and a plurality of temperature sensing particles have been placed to the inside of the flexible bag body.

Optionally, the temperature sensing particles are made of a thermal expansion material, the flexible bag body is made of a breathable material,

optionally, the semi-ring shell, the extension plate and the heat insulation plate are all made of heat insulation materials.

Optionally, the inner bottom surface of the inner cavity is fixedly connected with a heater.

Optionally, the outer end of the open thermal insulation box is fixedly connected with a freezer, and the output end of the freezer is fixedly penetrated through the open thermal insulation box and communicated with the inner cavity.

Optionally, an outer heat insulation box is arranged on the outer side of the open heat insulation box, an air pipe communicated with the inner part of the outer heat insulation box is fixedly connected to the outer end of the outer heat insulation box, and an auxiliary temperature sensor is fixedly connected to the inner wall of the outer heat insulation box.

Optionally, the inner side of the extension plate is provided with a plurality of calibration assemblies which are uniformly distributed, each calibration assembly comprises a fixed plate fixedly connected with the inner end of the extension plate, and one end of the fixed plate, which is close to the outside, is fixedly connected with a pressure sensor.

Optionally, the calibration assembly further comprises an elastic rod fixedly connected with the inner end of the extension plate, the elastic rod is located on one side, close to the outside, of the fixed plate, a flexible pressing ball is fixedly connected to the end of the elastic rod, and the flexible pressing ball corresponds to the pressure sensor in position.

Compare in prior art, the advantage of this application lies in:

(1) This application sets up the choking ring that has thermal insulation performance through the installation department at opening insulation can and test piece, and set up interval distribution's heat insulating board and examine the hourglass bag in choking the ring, in the testing process, when taking place the local seal unfavorable condition between test piece and the opening insulation can, on the one hand can effectively block opening insulation can and the external exchange that takes place cold and hot air current through choking the ring, be difficult for influencing the inside temperature variation of opening insulation can, test piece N's detection accuracy has effectively been guaranteed, on the other hand, external cold or hot air current get into the inside back of choking ring, can cause the leak hunting bag in the corresponding region to take place temperature sensing deformation, after the detection is accomplished, look over each form change of examining the hourglass bag through the contrast, can reflect sealed bad position area indirectly, provide attention warning for follow-up test piece N's installation detects.

(2) The erection joint department between test piece N and the opening insulation can is located between extension board and the installing frame inner wall, when there is the installation gap between the two, the gas in the opening insulation can outside can carry out the opening of semi-ring shell inboard through this gap, can be a plurality of little regions that have certain heat preservation performance with the inboard regional partition of semi-ring shell through a plurality of, every little region corresponds one and examines the leakage bag, through a plurality of deformation of examining the leakage bag and making to the regional temperature of locating separately, can judge out fast whether there is gaseous convection current condition and corresponding gas leakage position between test piece N and the opening insulation can.

(3) When the open incubator with the heater is adopted, the outer incubator is filled with cold air flow, so that a leakage detection bag after heating deformation can be selected, namely the initial state of the temperature sensing particles is in an expansion state, and when the cold air flow enters the inner side of the semi-ring shell through a poor sealing part, the temperature sensing particles can be cooled to reduce the volume; on the contrary, when the open incubator with the refrigerator is adopted, the outer incubator is filled with hot air flow, the temperature sensing particles which are not heated at the beginning can be selected, and when the hot air flow enters the inner side of the semi-ring shell through the poor sealing part, the heated volume of the temperature sensing particles can be increased, so that the air leakage part with poor sealing can be reflected through the obvious volume form change of the temperature sensing particles.

(4) Through the setting of calibration subassembly, in test piece N installation, it can produce synchronous extrusion to a plurality of flexible pressure balls simultaneously, makes flexible pressure ball produce certain pressure to pressure sensor, and through the pressure data that a plurality of pressure sensors received of monitoring, whether can indirectly judge test piece N mounted position regular to further improve the leakproofness between test piece N and the opening insulation can, and, in the testing process, also can regard as the foundation whether real-time judgement test piece N produces the displacement.

Drawings

FIG. 1 is a perspective view of embodiment 1 of the present application;

fig. 2 is a perspective view of the present application at the location of the half-ring shell;

FIG. 3 is a side view of the first embodiment of the present invention;

FIG. 4 is a schematic side view of embodiment 1 of the present application;

FIG. 5 is a side view of the leak detection bag of the present application;

FIG. 6 is a schematic side view of the leak detection bag in handling;

FIG. 7 is a first schematic side view of the present application during inspection;

FIG. 8 is a schematic side view of the present application during inspection;

FIG. 9 is a perspective view of embodiment 2 of the present application;

FIG. 10 is a schematic view of the structure at A in FIG. 9;

fig. 11 is a schematic side view of embodiment 2 of the present application.

The reference numbers in the figures illustrate:

the device comprises a 1-opening heat preservation box, a 101 inner cavity, a 102 mounting frame, a 2-main temperature sensor, a 3-sealing strip, a 4-half-ring shell, a 5-extending plate, a 6-insulating plate, a 61-transverse partition plate, a 62-vertical partition plate, a 7-leakage detection bag, a 71-flexible bag body, a 72-sealing rope, a 73-rope sleeve, 74-temperature sensing particles, an 8-heater, a 91-fixed plate, a 92-pressure sensor, a 93-elastic rod, a 94-flexible pressure ball, a 10-outer heat preservation box, an 11-freezer and an N-test piece.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application belong to the protection scope of the present application.

Example 1:

please refer to fig. 1 and 3, the application discloses a building thermal insulation material performance detection device, which comprises an opening thermal insulation box 1, an inner cavity 101 is arranged inside the opening thermal insulation box 1, a main temperature sensor 2 is fixedly connected to the inner wall of the inner cavity 101, an installation frame 102 communicated with the outside is arranged on the inner wall of the inner cavity 101 far away from the main temperature sensor 2, a sealing strip 3 is fixedly connected to the inner wall of the installation frame 102, when in use, a test piece N is installed at the inner end of the sealing strip 3 according to the existing thermal insulation material installation method, and the two sides of the test piece N are not easy to generate cold and hot air convection by combining with the filling of the thermal insulation material.

Referring to fig. 2 and 3, a choke ring is arranged inside the inner cavity 101, the choke ring includes a semi-ring shell 4 and an extension plate 5, an outer edge end of an opening of the semi-ring shell 4 is fixedly connected to an inner wall of the inner cavity 101, an inner edge end of the opening is fixedly connected to the extension plate 5, the extension plate 5 is located on an inner side of the mounting frame 102, a plurality of heat insulation plates 6 and a plurality of leakage detection bags 7 are arranged inside the semi-ring shell 4, the heat insulation plates 6 and the leakage detection bags 7 are uniformly distributed at intervals, the semi-ring shell 4, the extension plate 5 and the heat insulation plates 6 are made of heat insulation materials, the heat insulation plates 6 play a role of separating the plurality of leakage detection bags 7, so that gas leakage detection between adjacent leakage detection bags 7 is not easily influenced by each other, and the gas leakage part at the mounting position of the test piece N and the open thermal insulation box 1 is conveniently and quickly positioned.

Referring to fig. 4, the heat insulation board 6 includes a transverse partition board 61 and a vertical partition board 62, the vertical partition board 62 is located inside the semi-annular shell 4 and is fixedly connected with the semi-annular shell, the outer end of the transverse partition board 61 is fixedly connected with the inner wall of the inner cavity 101, the transverse partition board 61 is fixedly connected between the extension board 5 and the inner wall of the installation frame 102, with reference to fig. 2 and fig. 3, the installation connection position between the test piece N and the open heat insulation box 1 is located between the extension board 5 and the inner wall of the installation frame 102, when an installation gap exists between the two, the gas outside the open heat insulation box 1 can pass through the gap to carry out the open inner side of the semi-annular shell 4, the inner side area of the semi-annular shell 4 can be divided into a plurality of small areas with certain heat insulation performance through the plurality of heat insulation boards 6, each small area corresponds to one leakage detection bag 7, the temperature in each area is deformed through the plurality of leakage detection bags 7, and whether the gas convection condition and the corresponding gas leakage position exist between the test piece N and the open heat insulation box 1 can be rapidly judged, thereby more accurately analyzing the accuracy of the detection result, and providing attention warning for the sealing installation of the subsequent test piece N.

Referring to fig. 3 and 5, the leak detection bag 7 includes a flexible bag body 71, an opening end of the flexible bag body 71 is fixedly connected with a sealing rope 72, the sealing rope 72 is slidably connected with a rope loop 73, two ends of the rope loop 73 extend to the outer side of the rope loop 73, a plurality of temperature sensing particles 74 are placed inside the flexible bag body 71, the temperature sensing particles 74 are made of a heat expansion material, such as a heat expansion rubber material, and the flexible bag body 71 is made of a breathable material, so that the temperature sensing particles 74 can be conveniently contacted with an air flow to generate corresponding temperature sensing deformation.

Referring to fig. 6, before installing the test piece N, the flexible bag 71 wrapped with the temperature-sensing particles 74 of a certain shape is placed into the semi-annular shell 4 through a gap between the extension plate 5 and the installation frame 102, and then the test piece N is installed, and the installed test piece N abuts against the side end of the extension plate 5, and is in a surface contact sealing state, because of the heat-insulating properties of the semi-annular shell 4, the extension plate 5 and the heat-insulating plate 6, when there is no gas leakage part with poor sealing at the installation position of the test piece N and the open heat-insulating box 1, the shape of the temperature-sensing particles 74 is not easy to change obviously before and after detection, or the shape changes slightly and close to the same under the influence of the original temperature inside the semi-annular shell 4;

when the poor sealing condition exists at the installation position of the test piece N, cold airflow (or hot airflow) outside the test piece N can enter the inner side of the semi-ring shell 4 through the gap, on one hand, the heat insulation performance of the semi-ring shell 4 and the extension plate 5 effectively prevents the airflow from entering the inner cavity 101, namely, the exchange of cold airflow and hot airflow is blocked, the temperature change in the inner cavity 101 is not easily influenced, and the detection accuracy of the test piece N is effectively ensured; on the other hand, after the gas enters the area on the inner side of the semi-ring shell 4, the area is caused to generate obvious temperature change, the temperature sensing particles 74 are correspondingly and obviously deformed under the influence of the temperature, after the detection is finished, the test piece N is taken down firstly, then the leak detection bag 7 is taken out from the inner side of the semi-ring shell 4, the form change of the temperature sensing particles 74 in each flexible bag body 71 is checked through comparison, the sealing performance of the corresponding installation part of the reagent N can be indirectly reflected, and attention warning is provided for the installation and detection of the subsequent test piece N.

The open incubator 1 of the present application has two types, one of which is: referring to fig. 6, the inner bottom surface of the inner cavity 101 is fixedly connected with a heater 8, and the second: referring to fig. 8, the outer end of the open thermal insulation box 1 is fixedly connected with a freezer 11, and the output end of the freezer 11 is fixedly penetrated through the open thermal insulation box 1 and communicated with the inner cavity 101, i.e. one of the heater 8 and the freezer 11 is selected to be arranged, when the heater 8 is arranged, the open thermal insulation box 1 can be used as a hot box, and on the contrary, when the freezer 11 is arranged, the open thermal insulation box 1 can be used as a cold box.

An outer heat preservation box 10 is arranged on the outer side of the open heat preservation box 1, an air pipe communicated with the interior of the outer heat preservation box 10 is fixedly connected to the outer end of the outer heat preservation box 10, and an auxiliary temperature sensor is fixedly connected to the inner wall of the outer heat preservation box 10.

When the test device is used, the open heat preservation box 1 provided with the test piece N is placed inside the outer heat preservation box 10, when the open heat preservation box 1 is of a type provided with a heater 8, as shown in fig. 7, the inside of the inner cavity 101 is heated through the heater 8, and cold air is introduced into the outer heat preservation box 10, so that a temperature difference is formed between two sides of the test piece N; when the open thermal insulation box 1 is of a type provided with the refrigerating machine 11, as shown in fig. 8, cold air flow is released into the inner cavity 101 through the refrigerating machine 11, hot air is introduced into the outer thermal insulation box 10, so that a temperature difference is formed on two sides of the reagent N, the thermal insulation performance of the test piece N can be detected in two ways, and a person skilled in the art can perform required selection on the open thermal insulation boxes 1 of the two types as required.

In addition, when the open thermal insulation box 1 with the heater 8 is adopted, the cold air flow is filled in the outer thermal insulation box 10, so that the leakage detection bag 7 after being heated and deformed can be selected, namely, the initial state of the temperature sensing particles 74 is an expanded state, and when the cold air flow enters the inner side of the semi-annular shell 4 through a poor sealing part, the temperature sensing particles 74 can be cooled to reduce the volume; on the contrary, when the open heat insulation box 1 with the refrigerator 11 is adopted, the outer heat insulation box 10 is filled with hot air, the temperature sensing particles 74 which are not heated at the beginning can be selected, and when the hot air enters the inner side of the semi-ring shell 4 through the poor sealing part, the heated volume of the temperature sensing particles 74 can be increased, so that the gas leakage part with poor sealing can be reflected conveniently through the obvious volume form change of the temperature sensing particles 74.

This application sets up the choking ring that has thermal insulation performance through the installation department at opening insulation can 1 and test piece, and set up interval distribution's heat insulating board 6 and leak hunting bag 7 in choking the ring, in the testing process, when taking place the local seal unfavorable condition between test piece and the opening insulation can 1, on the one hand can effectively block opening insulation can 1 and the external exchange that takes place cold and hot air current through choking the ring, be difficult for influencing the inside temperature variation of opening insulation can 1, test piece N's detection accuracy has effectively been guaranteed, on the other hand, external cold or hot gas flow get into the choking ring after inside, can cause leak hunting bag 7 in the corresponding region to take place temperature sensing deformation, after detecting and accomplishing, look over each form change of examining bag 7 through the contrast, can reflect sealed bad position area indirectly, provide attention warning for follow-up test piece N's installation detection.

Example 2:

the difference between this embodiment and embodiment 1 is that, on the basis of keeping other structures unchanged, a calibration component is added, and the following settings are provided: referring to fig. 9, 10 and 11, a plurality of calibration assemblies are uniformly distributed on the inner side of the extension plate 5, each calibration assembly includes a fixed plate 91 and an elastic rod 93, the fixed plate 91 is fixedly connected to the inner end of the extension plate 5, the elastic rod 93 is located on one side of the fixed plate 91 close to the outside, one end of the fixed plate 91 close to the outside is fixedly connected to a pressure sensor 92, the end of the elastic rod 93 is fixedly connected to a flexible pressure ball 94, the flexible pressure ball 94 corresponds to the pressure sensor 92, and both the elastic rod 93 and the flexible pressure ball 94 can be made of elastic rubber materials.

Through the setting of calibration subassembly, in test piece N installation, it can produce synchronous extrusion to a plurality of flexible pressure balls 94 simultaneously, make flexible pressure ball 94 produce certain pressure to pressure sensor 92, through the pressure data that a plurality of pressure sensors 92 received of monitoring, can indirectly judge whether regular in test piece N mounted position, thereby further improve the leakproofness between test piece N and the opening insulation can 1, and, in the testing process, also can regard as the foundation whether real-time judgement test piece N produces the displacement.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions or changes according to the technical solutions and modifications of the present application should be covered by the scope of the present application.

Claims (10)

1. The utility model provides a building heat preservation and insulation material performance detection device, includes opening insulation can (1), its characterized in that, inner chamber (101) have been seted up to the inside of opening insulation can (1), the main temperature sensor (2) of inner wall fixedly connected with of inner chamber (101), set up on the inner wall of main temperature sensor (2) is kept away from in inner chamber (101) with external communicating installing frame (102), the inner wall fixedly connected with sealing strip (3) of installing frame (102), the inside of inner chamber (101) is equipped with choke ring, choke ring includes semicircular shell (4) and extension board (5), the outward flange end fixed connection of semicircular shell (4) opening part is on the inner wall of inner chamber (101), the inward flange end and the extension board (5) fixed connection of its opening part, extension board (5) are located the inboard of installing frame (102), the inside of semicircular shell (4) is equipped with a plurality of heat insulating boards (6) and a plurality of leak hunting bag (7), be interval evenly distributed between heat insulating board (6) and leak hunting bag (7).

2. The building thermal insulation material performance detection device according to claim 1, characterized in that the thermal insulation board (6) comprises a transverse partition board (61) and a vertical partition board (62), the vertical partition board (62) is located inside the semi-ring shell (4) and fixedly connected with the semi-ring shell, the outer end of the transverse partition board (61) is fixedly connected with the inner wall of the inner cavity (101), and the transverse partition board (61) is fixedly connected between the extension board (5) and the inner wall of the installation frame (102).

3. The building thermal insulation material performance detection device according to claim 1, wherein the leakage detection bag (7) comprises a flexible bag body (71), a sealing rope (72) is fixedly connected to an open end of the flexible bag body (71), a rope sleeve (73) is slidably connected to the inside of the sealing rope (72), two ends of the rope sleeve (73) extend to the outside of the rope sleeve (73), and a plurality of temperature sensing particles (74) are placed inside the flexible bag body (71).

4. The apparatus for detecting the performance of thermal insulation materials of buildings according to claim 3, wherein the temperature sensing particles (74) are made of thermal expansion materials, and the flexible bag body (71) is made of air permeable materials.

5. The building thermal insulation and heat preservation material performance detection device according to claim 1, wherein the semi-ring shell (4), the extension plate (5) and the heat insulation plate (6) are made of thermal insulation and heat preservation materials.

6. The building thermal insulation material performance detection device according to claim 1, wherein a heater (8) is fixedly connected to the inner bottom surface of the inner cavity (101).

7. The device for detecting the performance of the heat-insulating material of the building as claimed in claim 1, wherein the outer end of the open heat-insulating box (1) is fixedly connected with a refrigerator (11), and the output end of the refrigerator (11) is fixedly penetrated through the open heat-insulating box (1) and communicated with the inner cavity (101).

8. The apparatus for detecting the performance of the heat insulating material of the building as claimed in claim 1, wherein an outer heat insulating box (10) is disposed outside the open heat insulating box (1), an air pipe communicated with the inside of the outer heat insulating box (10) is fixedly connected to the outer end of the outer heat insulating box, and an auxiliary temperature sensor is fixedly connected to the inner wall of the outer heat insulating box (10).

9. The building thermal insulation and heat insulation material performance detection device according to claim 1, wherein a plurality of calibration assemblies are uniformly distributed on the inner side of the extension plate (5), each calibration assembly comprises a fixed plate (91) fixedly connected with the inner end of the extension plate (5), and one end, close to the outside, of the fixed plate (91) is fixedly connected with a pressure sensor (92).

10. The apparatus for detecting the performance of the thermal insulation material of the building as claimed in claim 9, wherein the calibration assembly further comprises an elastic rod (93) fixedly connected to the inner end of the extension plate (5), the elastic rod (93) is located at one side of the fixed plate (91) close to the outside, a flexible pressure ball (94) is fixedly connected to the end of the elastic rod (93), and the flexible pressure ball (94) corresponds to the pressure sensor (92).

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