CN216082570U - Heat-insulating material steady-state thermal resistance testing system - Google Patents
Heat-insulating material steady-state thermal resistance testing system Download PDFInfo
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- CN216082570U CN216082570U CN202122281175.2U CN202122281175U CN216082570U CN 216082570 U CN216082570 U CN 216082570U CN 202122281175 U CN202122281175 U CN 202122281175U CN 216082570 U CN216082570 U CN 216082570U
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Abstract
The utility model provides a heat-insulating material steady-state thermal resistance testing system, which belongs to the technical field of engineering detection and comprises testing components which are sequentially arranged horizontally and parallelly at intervals from top to bottom: the top of the shell above the upper cooling unit is provided with an upper driving mechanism for driving the shell to move up and down; the heating unit and the lower cooling unit are fixedly arranged; filling units are respectively filled at the left side and the right side of a parallel gap between the upper cooling unit and the heating unit and between the lower cooling unit and the heating unit; each filling unit is provided with a horizontal driving mechanism for driving the filling units to move left and right. According to the utility model, the test assembly is horizontally arranged, so that the sample to be tested filled in the parallel gaps among the upper cooling unit, the lower cooling unit and the heating unit can be uniformly heated at each position in the horizontal direction, the condition that the upper part and the lower part of the sample are not uniformly heated to influence the detection result when the test assembly is tested in a vertical state is avoided, and the detection precision is improved.
Description
Technical Field
The utility model relates to the technical field of engineering detection, in particular to a system for testing the steady-state thermal resistance of a heat-insulating material.
Background
In buildings, materials for controlling the outflow of indoor heat are conventionally called thermal insulation materials; materials that prevent outdoor heat from entering the room are called thermal insulation materials. The heat insulating and heat insulating materials are collectively called thermal insulating materials. In order to ensure the performance of the heat-insulating material, the technical indexes of rheological property, low-temperature flexibility, tensile cohesiveness, tensile-compression cycle performance and the like of the heat-insulating material must be tested.
The double-test-piece device is a common thermal insulation material steady-state thermal resistance testing system, a heating unit is clamped between two almost same test pieces, and the heat flow is transmitted to cooling units on two sides from the heating unit through the test pieces on two sides respectively. However, the conventional double-test-piece device adopts a vertical layout, that is, the cooling unit, the material to be measured, the heating unit, the material to be measured and the cooling unit are arranged from left to right in the horizontal direction, and in practical use, it is found that heat is easy to transfer upwards in the layout form, so that a large error exists in measurement.
Based on this, the present application is proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a heat-insulating material steady-state thermal resistance testing system, which solves the problem of low measurement accuracy in a double-test-piece-vertical layout testing system in the prior art, improves the measurement accuracy, is superior to a vertical layout mode, and is convenient for taking and placing materials to be tested.
In order to achieve the purpose, the steady-state thermal resistance testing system of the heat-insulating material has the following structure: including the sealed casing of rectangle, the inside of sealed casing, from last to down level in proper order have: the cooling device comprises an upper cooling unit, a heating unit and a lower cooling unit, wherein the upper cooling unit, the heating unit and the lower cooling unit are arranged in parallel at intervals; an upper driving mechanism is arranged at the top of the shell above the upper cooling unit and drives the upper cooling unit to move up and down; the rear side wall of the heating unit in the horizontal direction is fixedly connected with a horizontal connecting rod; the horizontal connecting rod is connected to the rear side wall of the shell; the lower cooling unit is fixed at the bottom of the shell;
parallel gaps among the upper cooling unit, the lower cooling unit and the heating unit are used for placing a material to be tested; meanwhile, filling units which are embedded into the middle parallel gap from the left side and the right side and block the left side and the right side of the parallel gap to form an accommodating cavity are respectively filled at the left side and the right side of the parallel gap; each filling unit is provided with a horizontal driving mechanism for driving the filling units to move left and right.
The utility model further provides the following: the heating unit and the horizontal connecting rod are connected to a rear connecting plate, the rear connecting plate is slidably mounted on the rear side wall of the shell, and a rear driving mechanism is arranged to drive the rear connecting plate to move up and down on the rear side wall of the shell.
The utility model further provides the following: and the rear driving mechanism applies acting force from bottom to top to the rear connection.
The utility model further provides the following: go up the cooling unit down the cooling unit heating unit and the one side that the relative with the casing of filling unit all cooperates and is equipped with a backup pad, go up the cooling unit down the cooling unit heating unit and the filling unit is fixed in the backup pad.
The utility model further provides the following: the outside of the supporting plate of the filling unit is covered with an insulating layer.
The utility model further provides the following: the shell is provided with a sliding plate in a sliding mode, the middle upper portion of the sliding plate is provided with a side opening groove with an opening on one side, and the supporting plate and the heat insulation layer of the filling unit are embedded in the side opening groove.
The utility model further provides the following: the horizontal driving mechanism comprises an installation frame, a driving plate, a vertical linear driving structure and a transverse linear driving structure, the driving plate is installed on the installation frame in a vertically sliding mode, and the vertical linear driving structure is installed on the installation frame or the shell near the installation frame and used for driving the driving plate to move; the transverse linear driving structure is arranged on the driving plate, and the movable end of the transverse linear driving structure is fixedly connected with the sliding plate.
The utility model further provides the following: and a plurality of uniformly distributed telescopic rods are connected between the driving plate and the sliding plate.
The utility model further provides the following: the front side and the rear side of the bottom of the shell are respectively hinged with a turnover heat-insulating layer, and the turnover heat-insulating layer is turned over to be in a vertical state and is attached to the front side surface or the rear side surface of the upper cooling unit, the lower cooling unit, the heating unit and the filling unit.
The utility model is further provided with that the upper driving mechanism comprises a linear driver and a push plate, the linear driver is directly and fixedly installed or is fixedly installed on the bottom surface of the top of the shell through an installation plate, and the push plate is positioned between the upper cooling unit and the linear driver; and a plurality of connecting rods which are uniformly distributed are arranged between the push plate and the upper cooling unit or a supporting plate for supporting the upper cooling unit, and the movable end of the linear driver faces downwards and is fixedly connected with the push plate.
The utility model has the following beneficial effects: according to the utility model, the double-test-piece device consisting of the heating unit and the two cooling units is horizontally arranged, and finally, the average number obtained by testing the two samples is taken as a test structure, so that the detection precision is improved. In addition, the cooling unit positioned above and the filling units at two sides can move, so that a user can conveniently and seamlessly insert a material to be tested into a gap between the heating unit and the two cooling units for testing, the operation is convenient, and the detection efficiency is improved.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic top view of an embodiment of the present invention.
Fig. 3 is a schematic sectional view taken along the line a-a in fig. 2.
Fig. 4 is a schematic cross-sectional view taken along line B-B in fig. 2.
Fig. 5 is a schematic perspective view of an internal structure according to an embodiment of the present invention.
Fig. 6 is a schematic right view of fig. 5.
FIG. 7 is a perspective view of a test assembly according to an embodiment of the present invention.
Fig. 8 is a schematic top view of fig. 7.
Fig. 9 is a front view of fig. 7.
Reference numerals: 1. an upper cooling unit; 2. a heating unit; 3. a lower cooling unit; 4. a rear heat-insulating layer; 5. a front insulating layer; 6. a filling unit; 7. a side insulating layer; 8. a sliding plate; 9. a mounting frame; 11. an upper support plate; 12. pushing the plate; 13. a guide bar; 14. a connecting rod; 15. a first electric push rod; 131. a buffer spring; 21. a rear support plate; 22. a rear horizontal connecting rod; 31. A lower support plate; 32. a support pillar; 51. a handle; 61. side supporting plates; 81. a pulley; 91. a vertical chute; 92. a drive plate; 93. a second electric push rod; 94. a telescopic rod;
100. a housing; 200. a first sample to be detected; 200' and a second sample to be detected; 110. closing the chamber; 120. a table top; 121. a horizontal chute; 122. the lower groove is hinged.
Detailed Description
The utility model provides a steady-state thermal resistance test of a heat-insulating material, which comprises an upper cooling unit 1, a heating unit 2, a lower cooling unit 3 and filling units 6 filled at the left side and the right side of parallel gaps among the upper cooling unit 1, the lower cooling unit 3 and the heating unit 2, wherein the upper cooling unit 1, the heating unit 2 and the lower cooling unit 3 are arranged in a horizontal state. Through the horizontal setting of the test component that constitutes with last cooling unit 1, heating element 2, lower cooling unit 3 and filling unit 6, make and be filled in the sample that awaits measuring of the parallel clearance between last cooling unit 1, lower cooling unit 3 and the heating element 2 everywhere on the horizontal direction can the thermally equivalent, the upper portion of the sample that exists when avoiding the test component to test under vertical state, the lower part is heated unevenly and influences the situation appearance of testing result to improve and detect the precision.
The present invention is further illustrated by the following specific examples.
In this embodiment, the upper cooling unit 1 and the lower cooling unit 3 have the same structure and size and are mirror-symmetrical, and both are rectangular blocks made of a material having a good heat conductivity and a poor temperature retention capability. The left side and the right side of the upper cooling unit 1 and the lower cooling unit 3 are aligned, and the front side and the rear side of the upper cooling unit 1, the heating unit 2, the lower cooling unit 3 and the filling unit 6 are aligned.
For the heating unit 2, in the present embodiment, the position of the heating unit 2 is fixed and it "floats" with respect to the table 120 throughout the closed chamber 110. For this, the present embodiment provides a rear support plate 21 at the rear side of the heating unit 2, and is fixed to the rear sidewall of the housing 100 by a rear horizontal link 22 fixedly connected to the rear support plate 21 and extending in the horizontal direction.
As for the lower cooling unit 3, the lower cooling unit 3 is the same as the heating unit 2, and the position thereof is also fixed, as shown in fig. 9, the bottom of the lower cooling unit 3 is fixed on the lower support plate 31, and the bottom of the lower support plate 31 is provided with a plurality of support columns 32 for lifting the lower cooling unit 3 to be higher than the table top 120.
Corresponding to the upper cooling unit 1, the top of the upper cooling unit 1 is provided with an upper support plate 11 closely attached and fixed as a whole. An upper driving mechanism is arranged between the upper supporting plate 11 and the shell 100 above the upper supporting plate. The upper driving mechanism comprises a first electric push rod 15 and a push plate 12, the linear driver is directly and fixedly installed or fixedly installed on the top of the shell 100 through an installation plate, and the push plate 12 is located between the upper support plate 11 and the linear driver. The push plate 12 is equipped with a plurality of evenly distributed's connecting rod 14 between down and the last backup pad 11 that is located its below and fixes and connect the two, and as preferred, push plate 12 sets up with certain interval between the backup pad 11, and the interval of here is used for laying the heat preservation to can avoid because the distance between push plate 12 and the last cooling unit 1 crosses festival and causes push plate 12 high temperature. Of course, the connecting rods and the upper support plate 11 are preferably made of insulating materials. The movable end of the linear driver faces downwards and is fixedly connected with the push plate 12. Therefore, the first electric push rod 15 drives the push rod to move up and down, so as to drive the upper support plate 11 and the upper cooling unit 1 thereon to move up and down.
Further, in order to maintain the stable movement of the push plate 12, a guide rod 13 is provided between the push plate 12 and the housing 100, a guide hole corresponding to the rod diameter of the guide rod 13 is provided in the push plate 12, and the middle-lower portion of the guide rod 13 is inserted into the guide hole to slide the push plate 12 therealong. Meanwhile, a buffer spring 131 is sleeved on a part of the guide rod 13 between the push plate 12 and the housing 100, and the buffer spring 131 plays a certain buffer role to keep the movement of the push plate 12 stable.
As shown in fig. 4, the outer side of the filling unit 6 is attached to the side support plate 61 and the end portions of the upper and lower ends of the side support plate 61 are in interference fit with the left or right end surfaces of the upper and lower cooling units 1 and 3. The lateral supporting plate 61 is provided with a lateral insulating layer 7 on the outer side, in order to install the lateral insulating layer 7, the sliding plate 8 perpendicular to the table top 120 is provided in the embodiment, the middle upper part of the sliding plate 8 is provided with a lateral slot with an opening on one side, and the lateral supporting plate 61 and the rear insulating layer 4 are embedded in the lateral slot together. And preferably the top of the slide plate 8 is aligned with the top of the upper support plate 11.
Corresponding to the filling unit 6, the present embodiment is provided with a horizontal driving mechanism for driving it to move left and right: as can be seen from fig. 5, 7 and 4, in this embodiment, there are two filling units 6, and each filling unit 6 is configured with one horizontal driving mechanism, and the horizontal driving mechanism of the filling unit 6 located on the left side in fig. 4 and 5 and the matching relationship between the horizontal driving mechanism and the horizontal driving mechanism are described as follows: the horizontal driving mechanism comprises a mounting frame 9, a driving plate, a vertical linear driving structure and a transverse linear driving structure. The mounting bracket 9 is a rectangular bracket body structure and is attached to the left side wall of the housing 100, vertical sliding grooves 91 are formed in the inner walls of the front and rear sides of the rectangular bracket body, and the front and rear sides of the driving plate 92 are provided with corresponding sliding rail structures and can be assembled with the vertical sliding grooves 91 on the mounting bracket 9 in a vertically sliding manner. Meanwhile, a vertical linear driving structure is mounted on the housing 100 on or near the mounting frame 9 for driving the driving plate to move up and down. The lateral linear driving structure is installed on the surface of the driving plate 92 opposite to the filling unit 6, the movable end of the lateral linear driving structure extends towards the sliding plate 8 and is fixedly connected with the center of the middle upper part of the sliding plate 8, and evenly distributed telescopic rods 94 are arranged between the four corners of the middle upper part of the sliding plate 8 and the driving plate 92.
In this embodiment, the vertical linear driving structure and the horizontal linear driving structure may adopt an electric push rod, and as shown in fig. 5, the horizontal linear driving structure is a second electric push rod 93 in the drawing. In order to cooperate with the horizontal linear driving structure to drive the sliding plate 8 to move left and right on the table top 120, in this embodiment, a horizontal sliding slot 121 is further disposed on the table top 120, and the bottom of the sliding plate 8 is provided with a roller 81 to cooperate with the horizontal sliding slot 121, so that sliding friction can be reduced, and the sliding plate 8 can slide smoothly on the table top 120.
With the above-described structure, the present embodiment can control the sliding plate 8 to reciprocate in the left-right direction, and can control the sliding plate 8 to move up and down in the vertical direction.
In addition, as shown in fig. 3, 5 and 6, in addition to the side insulating layer 7, a reversible front insulating layer 5 and a reversible rear insulating layer 4 are respectively arranged on the front side and the rear side of the testing assembly, and the reversible front insulating layer 5 or the reversible rear insulating layer 4 is attached to the front side or the rear side of the upper cooling unit 1, the lower cooling unit 3, the heating unit 2 and the filling unit 6 when being turned to a vertical state. The front heat-insulating layer 5, the rear heat-insulating layer 4 and the side heat-insulating layers 7 on the two sides are matched to form a relatively closed heat-insulating structure, so that the speed of transferring heat inside the heat-insulating structure to the outside is reduced, and a relatively stable thermal environment is formed for detecting thermal resistance. Returning to fig. 3, in this embodiment, the front insulating layer 5 and the rear insulating layer 4 are installed in the hinged lower groove 122, and the existence of the hinged lower groove 122 enables the front insulating layer 5 and the rear insulating layer 4 (which can be matched with the handle 51) to have a larger turning angle when turning towards the horizontal state, so that the problem that the turning space at the bottoms of the front insulating layer 5 and the rear insulating layer 4 is insufficient to influence the turning amplitude is avoided. When the current heat preservation 5 and the back heat preservation 4 have bigger upset range, more convenience of customers takes out or puts into the sample that awaits measuring from the test subassembly.
The application process of the embodiment is as follows: the small door on the front side of the shell 100 is opened, the front insulating layer 5 is turned downwards to expose the testing component, the horizontal driving mechanism drives the sliding plate 8 to be away from the testing component, and the upper driving mechanism drives the upper cooling unit 1 to be also away from the heating unit 2. Then, a first sample to be tested 200 and a second sample to be tested 200' are put in, and the horizontal driving mechanism drives the sliding plate 8 to move towards the side where the test component is located and attach to the side surface of the lower cooling unit 3. And then the upper cooling unit 1 is controlled to move towards the heating unit 2 until the upper cooling unit is in interference fit with the first sample to be detected 200. Then the front heat-insulating layer 5 is turned upwards, the small door is closed, and the buttons on the panel I or the panel II are started to control the heating unit 2 to heat and the temperature sensors arranged on the heating unit 2, the upper cooling unit 1, the lower cooling unit 3 and the like to work. Below the top 120 of the housing 100, a controller, such as a computer, is provided for receiving various detection signals and emitting various output signals, and at the same time, the computer can process, analyze and calculate the thermal resistance according to a preset program and the received various signals. Circuits, programs and the like of the part are all in the prior art, and are not described in detail herein. It should be noted that in this embodiment, when calculating the thermal resistance, the final detection value can be obtained only by adding the thermal resistances measured by the first sample to be measured 200 and the second sample to be measured 200' and then dividing by 2.
Example 2 this example differs from example 1 in that: in this embodiment, the heating unit 2 and the horizontal connecting rod are connected to a rear connecting plate, the rear connecting plate is slidably mounted on the rear sidewall of the housing 100, and a rear driving mechanism is provided to drive the rear connecting plate to move up and down on the rear sidewall of the housing 100. Preferably, the rear drive mechanism applies a force to the rear connection from below upward in view of structural stability and ease of installation.
The present embodiment is used in the same way as the present embodiment, except that the present embodiment can adjust the distance between the heating unit 2 and the lower cooling unit 3 and the height of the two side filling units 6 relative to the table top 120 according to the thickness of the first sample 200 and the second sample 200'. The adjustment needs to be prepared in advance before the actual measurement.
Claims (10)
1. A heat-insulating material steady-state thermal resistance test system is characterized in that: including the sealed casing of rectangle, the inside of sealed casing, from last to down level in proper order have: the cooling device comprises an upper cooling unit, a heating unit and a lower cooling unit, wherein the upper cooling unit, the heating unit and the lower cooling unit are arranged in parallel at intervals; an upper driving mechanism is arranged at the top of the shell above the upper cooling unit and drives the upper cooling unit to move up and down; the rear side wall of the heating unit in the horizontal direction is fixedly connected with a horizontal connecting rod; the horizontal connecting rod is connected to the rear side wall of the shell; the lower cooling unit is fixed at the bottom of the shell;
parallel gaps among the upper cooling unit, the lower cooling unit and the heating unit are used for placing a material to be tested; meanwhile, filling units which are embedded into the middle parallel gap from the left side and the right side and block the left side and the right side of the parallel gap to form an accommodating cavity are respectively filled at the left side and the right side of the parallel gap; each filling unit is provided with a horizontal driving mechanism for driving the filling units to move left and right.
2. The system for testing the steady state thermal resistance of an insulating material according to claim 1, wherein: the heating unit and the horizontal connecting rod are connected to a rear connecting plate, the rear connecting plate is slidably mounted on the rear side wall of the shell, and a rear driving mechanism is arranged to drive the rear connecting plate to move up and down on the rear side wall of the shell.
3. The system for testing the steady state thermal resistance of an insulating material according to claim 2, wherein: and the rear driving mechanism applies acting force from bottom to top to the rear connecting plate.
4. The system for testing the steady state thermal resistance of an insulating material according to claim 1, wherein: go up the cooling unit down the cooling unit heating unit and the one side that the relative with the casing of filling unit all cooperates and is equipped with a backup pad, go up the cooling unit down the cooling unit heating unit and the filling unit is fixed in the backup pad.
5. The system of claim 4, wherein: the outside of the supporting plate of the filling unit is covered with an insulating layer.
6. The system for testing the steady state thermal resistance of an insulating material according to claim 5, wherein: the shell is provided with a sliding plate in a sliding mode, the middle upper portion of the sliding plate is provided with a side opening groove with an opening on one side, and the supporting plate and the heat insulation layer of the filling unit are embedded in the side opening groove.
7. The system for testing the steady state thermal resistance of an insulating material according to claim 6, wherein: the horizontal driving mechanism comprises an installation frame, a driving plate, a vertical linear driving structure and a transverse linear driving structure, the driving plate is installed on the installation frame in a vertically sliding mode, and the vertical linear driving structure is installed on the installation frame or the shell near the installation frame and used for driving the driving plate to move; the transverse linear driving structure is arranged on the driving plate, and the movable end of the transverse linear driving structure is fixedly connected with the sliding plate.
8. The system for testing the steady state thermal resistance of an insulating material according to claim 7, wherein: and a plurality of uniformly distributed telescopic rods are connected between the driving plate and the sliding plate.
9. The system for testing the steady state thermal resistance of an insulating material according to claim 1, wherein: the front side and the rear side of the bottom of the shell are respectively hinged with a turnover heat-insulating layer, and the turnover heat-insulating layer is turned over to be in a vertical state and is attached to the front side surface or the rear side surface of the upper cooling unit, the lower cooling unit, the heating unit and the filling unit.
10. The system for testing the steady state thermal resistance of an insulating material according to claim 1, wherein: the upper driving mechanism comprises a linear driver and a push plate, the linear driver is directly and fixedly installed or fixedly installed on the bottom surface of the top of the shell through an installation plate, and the push plate is positioned between the upper cooling unit and the linear driver; and a plurality of connecting rods which are uniformly distributed are arranged between the push plate and the upper cooling unit or a supporting plate for supporting the upper cooling unit, and the movable end of the linear driver faces downwards and is fixedly connected with the push plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122281175.2U CN216082570U (en) | 2021-09-18 | 2021-09-18 | Heat-insulating material steady-state thermal resistance testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122281175.2U CN216082570U (en) | 2021-09-18 | 2021-09-18 | Heat-insulating material steady-state thermal resistance testing system |
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| Publication Number | Publication Date |
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| CN216082570U true CN216082570U (en) | 2022-03-18 |
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| CN202122281175.2U Active CN216082570U (en) | 2021-09-18 | 2021-09-18 | Heat-insulating material steady-state thermal resistance testing system |
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- 2021-09-18 CN CN202122281175.2U patent/CN216082570U/en active Active
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