CN221926192U - Comprehensive heat insulation test device for reducing influence of smoke dust - Google Patents

Abstract

The utility model relates to a test device, in particular to a comprehensive heat insulation test device for reducing the influence of smoke dust. The test device comprises a fixed platform, wherein a test piece mounting platform, a quartz lamp module and a quartz lamp reflecting plate are arranged above the fixed platform; a test piece mounting window is arranged on the test piece mounting platform; the bottom of the test piece mounting platform is provided with a gas blowing pipe, gas blowing holes are uniformly distributed on the gas blowing pipe, and the angles of the gas blowing holes on two sides of the test piece mounting window are symmetrical. The test device can wrap the smoke dust to move outwards, so that the smoke dust is prevented from being gathered on the surfaces of the test piece and the quartz lamp, the influence of the smoke dust is effectively reduced, and the reliability is improved; avoiding the explosion of the quartz lamp. The quartz lamp can be blocked from radiating to the back of the test piece, and the accuracy of the test result is ensured. The problem that smoke dust generated in the test process of the existing test device easily affects heat transfer and the test reliability is poor is solved.

Description

A comprehensive thermal insulation test device for reducing the impact of smoke and dust

Technical Field

The utility model relates to a testing device, in particular to a comprehensive heat insulation testing device capable of reducing the influence of smoke and dust.

Background Art

The comprehensive thermal insulation test refers to heating one side of the test piece and measuring the temperature value on the other side, and evaluating the thermal insulation performance of the test piece through numerical feedback. In the thermal environment test, multiple quartz lamps are generally used to form a quartz lamp array for heating. The output power per unit area of the quartz lamp array determines the maximum heat flux value output by the thermal environment test.

In conventional material insulation performance tests, a large amount of smoke and dust will be generated while the quartz lamp heats the test piece. The smoke and dust adhere to the surface of the quartz lamp, making it impossible for the quartz lamp to effectively dissipate heat, resulting in explosion. In addition, the thermal insulation treatment of the thermal radiation of the quartz lamp is insufficient. Generally, the front side is directly heated and the back side is measured. While the quartz lamp heats the test piece, its heat will be transferred to the back side of the test piece through the medium, which has a great impact on the test results of the simulated real scene. In addition, the smoke and dust generated during the test process causes the test piece to receive uneven thermal radiation. Due to the delay in the temperature feedback of the temperature measurement system, the local temperature is too high and even the temperature measurement module is damaged, thereby affecting the acquisition of the temperature signal; the smoke and dust generated during the test process causes the test piece to receive uneven thermal radiation. At the same time, due to the high temperature, the test piece produces chemical combustion or toxic and harmful smoke, forming an uneven physical barrier to the heat flow. The uneven heat flow received by the test piece leads to uneven temperature changes, and even a significant delay in the expected heating rate, resulting in poor test reliability.

Therefore, it is necessary to design a comprehensive thermal insulation test device that reduces the impact of smoke and dust to solve the above problems.

Summary of the invention

The utility model aims to provide a comprehensive heat insulation test device for reducing the influence of smoke and dust, which can effectively reduce the influence of smoke and dust, transfer heat evenly and effectively improve reliability, in view of the shortcomings of the prior art.

The technical solution of the utility model is:

A comprehensive thermal insulation test device for reducing the influence of smoke and dust, which consists of a fixed platform, a test piece mounting platform, a quartz lamp module and a quartz lamp reflecting plate, and is characterized in that: the test piece mounting platform, the quartz lamp module and the quartz lamp reflecting plate are arranged in sequence from top to bottom above the fixed platform; a test piece mounting window is arranged in the middle of the test piece mounting platform; an air inlet pipe is arranged at the bottom of the test piece mounting platform, and a plurality of air blowing pipes are arranged in parallel and at intervals on the air inlet pipe, and air blowing holes are evenly distributed on the air blowing pipes, and the air holes are arranged obliquely relative to the horizontal plane, and the inclination direction of the air holes on one side of the test piece mounting window is opposite to that of the air holes on the other side of the test piece mounting window.

The test piece installation platform is composed of a heat-insulating box, an upper water inlet pipe and an upper drainage pipe. A plurality of groups of upper water inlet pipes and upper drainage pipes are arranged in pairs on the heat-insulating box. The heat-insulating box is movably connected to the fixed platform through a slide rail.

A plurality of upper baffles are alternately arranged in the heat-insulating box between each group of upper water inlet pipes and upper drainage pipes; an upper partition plate is arranged in the heat-insulating box between two adjacent groups of upper water inlet pipes and upper drainage pipes.

The quartz lamp module is composed of multiple quartz lamps, assembly seats, electrodes and cooling modules arranged in parallel. Assembly seats are respectively arranged at both ends of the quartz lamp, electrodes are connected to the outside of the assembly seats, a cooling module is arranged between the electrodes and the assembly seats, a coolant flow channel is arranged on the cooling module, one end of the coolant flow channel is connected to a middle water inlet pipe, and the other end of the coolant flow channel is connected to a middle drain pipe; support plates are arranged in parallel on the outside of the electrodes, and the support plates are fixedly connected to the cooling modules through insulators.

A cooling box is arranged at the bottom of the quartz lamp reflector, and the quartz lamp reflector is sealedly connected to the cooling box; a plurality of groups of lower water inlet pipes and lower water discharge pipes are arranged in pairs on the cooling box; the cooling box is fixedly connected to the support plate through a support plate.

A plurality of lower baffles are arranged alternately in the cooling box between each group of lower water inlet pipes and lower drainage pipes; a lower partition plate is arranged in the cooling box between two adjacent groups of lower water inlet pipes and lower drainage pipes.

The beneficial effects of the utility model are:

The comprehensive thermal insulation test device for reducing the influence of smoke and dust uses the exhaust airflow to carry the smoke and dust outward, preventing the smoke and dust from gathering on the test piece and the surface of the quartz lamp, effectively reducing the influence of the smoke and dust, allowing the quartz lamp to heat the test piece evenly, and effectively improving reliability; at the same time, it prevents the smoke and dust from adhering to the surface of the quartz lamp, causing the quartz lamp to accumulate heat and burst. Water cooling is added around the test piece through the thermal insulation box, and the heat is taken away in the form of circulating cooling, blocking the path of the quartz lamp radiating to the back of the test piece, thereby ensuring the accuracy of the test results. By connecting multiple quartz lamps in parallel to form a quartz lamp module, different power densities can be adjusted according to different test scenarios, so that it can obtain an adjustable and wide heating capacity, which can be widely used in test scenarios with different requirements for thermal values, and achieve a general purpose. It solves the problem that the smoke and dust generated during the test of the existing test device easily affect the heat transfer and the test reliability is poor.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a schematic top view of the test piece installation platform of the utility model;

3 is a bottom view schematic diagram of the test piece installation platform of the utility model;

Fig. 4 is a schematic diagram of the structure along the line A-A in Fig. 3;

FIG5 is an enlarged schematic diagram of point B in FIG4;

Figure 6 is a schematic diagram of the distribution of the upper baffle of the utility model;

FIG7 is a schematic diagram of the structure of a quartz lamp module of the present invention;

FIG8 is a schematic top view of a quartz lamp module of the present invention;

Fig. 9 is a schematic diagram of the structure of C-C in Fig. 8;

FIG10 is a schematic diagram of the structure of a quartz lamp reflector of the present invention;

FIG. 11 is a schematic diagram showing the distribution of the lower baffle of the present utility model.

In the figure: 1. fixed platform, 2. quartz lamp reflector, 3. test piece installation window, 4. air inlet pipe, 5. air blowing pipe, 6. air blowing hole, 7. insulation box, 8. upper water inlet pipe, 9. upper drain pipe, 10. slide rail, 11. upper baffle, 12. upper partition, 13. quartz lamp, 14. assembly seat, 15. electrode, 16. cooling module, 17. coolant flow channel, 18. middle water inlet pipe, 19. middle drain pipe, 20. support plate, 21. insulator, 22. cooling box, 23. lower water inlet pipe, 24. lower drain pipe, 25. support plate, 26. lower baffle, 27. lower partition.

DETAILED DESCRIPTION

The comprehensive thermal insulation test device for reducing the influence of smoke and dust is composed of a fixed platform 1, a test piece installation platform, a quartz lamp module and a quartz lamp reflector 2. The test piece installation platform, the quartz lamp module and the quartz lamp reflector 2 are arranged in sequence from top to bottom above the fixed platform 1. The test piece installation platform is used to install and fix the test piece, and the test piece is fixed above the middle of the quartz lamp module. The function of the quartz lamp module is to heat the end face of one end of the test piece through the thermal radiation of the quartz lamp module, so as to perform a thermal insulation test by measuring the temperature of the other end face of the test piece. The function of the quartz lamp reflector 2 is to reflect the thermal radiation generated by the quartz lamp module, and convert the thermal radiation transmitted downward into upward transmission through the reflection of the quartz lamp reflector 2, thereby improving the energy utilization rate of the quartz lamp module, reducing energy loss, and achieving the purpose of energy saving. A test piece installation window 3 is provided in the middle of the test piece installation platform, and its purpose is to install the test piece through the test piece installation window 3, so that the heat radiation of the quartz lamp module can be transferred to the test piece through the test piece installation window 3, and the bottom end surface of the test piece is heated, so as to test the thermal insulation performance of the test piece. The test piece installation platform around the test piece installation window can be insulated, blocking the heat radiation generated by the quartz lamp module from being transferred from the surrounding of the test piece to the back of the test piece, so that the heat can only be transferred from the heating surface of the test piece to the back of the test piece, thereby ensuring the accuracy of the thermal insulation test results.

An air inlet pipe 4 is provided at the bottom of the test piece mounting platform, and the air inlet pipe 4 is connected to an air source; a plurality of air blowing pipes 5 are arranged in parallel and at intervals on the air inlet pipe 4, and air blowing holes 6 are evenly distributed on the air blowing pipes 5, and the air blowing holes 6 are inclined relative to the horizontal plane, and the inclination direction of the air blowing holes 6 on one side of the test piece mounting window 3 is opposite to that of the air blowing holes 6 on the other side of the test piece mounting window 3. The purpose is to blow air outward from both sides of the test piece installation window 3 through the air inlet pipe, the air blowing pipe 5 and the air blowing hole 6 in sequence. According to the Bernoulli principle and the relationship between speed and air pressure, during the blowing process, air will enter the test piece installation window 3 from the central axis, and then move outward from the test piece installation window 3 to both sides along with the gas blown out of the air blowing holes. When the air passes through the test piece installation window 3, it will carry the smoke generated by the heating of the test piece outward, thereby discharging the smoke from the test piece installation window 3, making it difficult for the smoke to gather at the bottom of the test piece, ensuring heat transfer and reducing the influence of the smoke on the test; at the same time, it will make it difficult for the smoke to gather on the quartz lamp module, protecting the quartz lamp module.

The test piece installation platform is composed of an insulation box 7, an upper water inlet pipe 8 and an upper drainage pipe 9. The insulation box 7 is provided with multiple groups of upper water inlet pipes 8 and upper drainage pipes 9 in pairs; the insulation box 7 is movably connected to the fixed platform 1 through a slide rail 10. The upper water inlet pipe 8 and the upper drainage pipe 9 are respectively connected to the water source, and the cooling medium flows in the insulation box 7 through the upper water inlet pipe 8 and the upper drainage pipe 9, so that the temperature of the insulation box 7 is reduced by the flowing cooling medium, and the heat generated by the quartz lamp module is prevented from continuing to be transferred upward to the back of the test piece through the insulation box 7, thereby ensuring the accuracy of the test results; at the same time, the test piece installation platform is protected to prevent the test piece installation platform from burning at high temperatures. The purpose of setting multiple groups of upper water inlet pipes 8 and upper drainage pipes 9 is to speed up the circulation of the cooling medium by adding inlets and outlets to the insulation box 7, thereby enhancing the heat exchange efficiency and ensuring the cooling effect.

Multiple upper baffles 11 are staggeredly arranged in the heat-insulating box 7 between each group of upper water inlet pipes 8 and upper drainage pipes 9, so as to control the flow direction of the cooling medium through the upper baffles 11, so as to ensure that the cooling medium can cool everywhere, avoid local overheating and burns. An upper partition plate 12 is arranged in the heat-insulating box 7 between two adjacent groups of upper water inlet pipes 8 and upper drainage pipes 9, so as to divide the heat-insulating box 7 through the partition plate 12, so that the cooling medium between each group of upper water inlet pipes 8 and upper drainage pipes 9 is independent, so as to ensure that the cooling medium flows evenly, and avoid local overheating due to mutual influence.

The quartz lamp module is composed of a plurality of quartz lamps 13, an assembly seat 14, an electrode 15 and a cooling module 16 arranged in parallel. The assembly seats 14 are respectively arranged at both ends of the quartz lamp 13. The function of the quartz lamp 13 is to generate strong heat through the filament of the quartz lamp 13 when powered on, thereby heating the test piece. The electrode 15 is connected to the outside of the assembly seat 14, and a cooling module 16 is arranged between the electrode 15 and the assembly seat 14. A coolant flow channel 17 is arranged on the cooling module 16. One end of the coolant flow channel 17 is connected to a middle water inlet pipe 18, and the other end of the coolant flow channel 17 is connected to a middle drain pipe 19. The middle water inlet pipe 18 and the middle drain pipe 19 are respectively connected to a water source. The cooling medium flowing in the middle water inlet pipe 18, the coolant flow channel 17 and the middle water outlet pipe 19 cools the cooling module 16, thereby cooling the electrode 15 and the assembly seat 14, thereby preventing the electrode 15, the assembly seat 14 and the end of the quartz lamp 13 from overheating, thereby avoiding burning. Support plates 20 are arranged in parallel outside the electrodes 15 , and the support plates 20 are fixedly connected to the cooling modules 16 through insulators 21 .

A cooling box 22 is provided at the bottom of the quartz lamp reflector 2, and the quartz lamp reflector 2 is sealedly connected to the cooling box 22; multiple groups of lower water inlet pipes 23 and lower drainage pipes 24 are arranged in pairs on the cooling box 22; the cooling box 22 is fixedly connected to the support plate 20 through a support plate 25. Multiple lower baffles 26 are staggeredly arranged in the cooling box 22 between each group of lower water inlet pipes 23 and lower drainage pipes 24; a lower partition plate 27 is arranged in the cooling box 22 between two adjacent groups of lower water inlet pipes 23 and lower drainage pipes 24. The lower water inlet pipe 23 and the lower drainage pipe 24 are respectively connected to the water source, and the cooling medium can circulate in the cooling box 22 through the lower water inlet pipe 23 and the lower drainage pipe 24, so as to cool the quartz lamp reflector 2 and prevent the quartz lamp reflector 2 from overheating and burning.

When testing the comprehensive thermal insulation test device for reducing the influence of smoke and dust, the test piece is installed on the test piece installation window 3 from the top of the thermal insulation box 7. The upper water inlet pipe 8, the upper drainage pipe 9, the middle water inlet pipe 18, the middle drainage pipe 19, the lower water inlet pipe 23 and the lower drainage pipe 24 are opened to allow the cooling medium to flow in the thermal insulation box 7, the cooling module 16 and the cooling box 22 respectively. After the cooling medium starts to flow, it is energized to each quartz lamp 13 through the motor 15 and the assembly seat 14 in turn, and heat is transferred to the test piece through the quartz lamp 13 to heat the bottom of the quartz lamp 13. After the quartz lamp 13 is turned on, air is ventilated to the air inlet pipe 4, and air is blown outward through the air inlet pipe 4, the air blowing pipe 5 and the air blowing hole 6 in turn, and the gas at the bottom of the test piece is entrained to move outward. When smoke and dust are generated at the bottom of the test piece due to heating, the smoke and dust are entrained to move outward. During the heating process of the test piece, the temperature of the specified positions of the two end faces of the test piece is measured, and the thermal insulation performance parameters of the test piece are calculated through the temperature change.

The comprehensive heat insulation test device for reducing the influence of smoke and dust moves outward by entraining smoke and dust with the exhaust airflow, preventing smoke and dust from gathering on the test piece and the surface of the quartz lamp 13, effectively reducing the influence of smoke and dust, and enabling the quartz lamp 13 to evenly heat the test piece, effectively improving reliability; at the same time, preventing smoke and dust from adhering to the surface of the quartz lamp 13, causing the quartz lamp to accumulate heat and burst. Water cooling is added around the test piece through the heat insulation box 7, and heat is taken away in the form of circulating cooling, blocking the path of the quartz lamp 13 radiating to the back of the test piece, thereby ensuring the accuracy of the test results. A quartz lamp module is formed by connecting multiple quartz lamps 13 in parallel, and different power densities can be adjusted according to different test scenarios, so that it can obtain an adjustable wide heating capacity, which can be widely used in test scenarios with different requirements for thermal values, and achieve a general purpose. The problem that smoke and dust generated during the test of the existing test device easily affect heat transfer and the test reliability is poor is solved.

Claims (6)

1. The utility model provides a reduce comprehensive heat-insulating test device that smoke and dust influences, it comprises fixed platform (1), test piece mounting platform, quartz lamp module and quartz lamp reflecting plate (2), its characterized in that: a test piece mounting platform, a quartz lamp module and a quartz lamp reflecting plate (2) are sequentially arranged above the fixed platform (1) at intervals from top to bottom; a test piece mounting window (3) is arranged in the middle of the test piece mounting platform; the bottom of test piece mounting platform is provided with intake pipe (4), and the interval is provided with many gas blow pipes (5) side by side on intake pipe (4), and the equipartition has gas blow hole (6) on gas blow pipe (5), and gas blow hole (6) are personally submitted the slope for the level and are set up, and gas blow hole (6) of test piece mounting window (3) one side are opposite with the slope direction of gas blow hole (6) of test piece mounting window (3) opposite side.

2. The comprehensive thermal insulation test device for reducing the influence of smoke dust according to claim 1, wherein: the test piece mounting platform consists of a heat insulation box body (7), an upper water inlet pipe (8) and an upper water outlet pipe (9), wherein a plurality of groups of upper water inlet pipes (8) and upper water outlet pipes (9) are arranged on the heat insulation box body (7) in pairs; the heat insulation box body (7) is movably connected with the fixed platform (1) through a sliding rail (10).

3. The comprehensive thermal insulation test device for reducing the influence of smoke dust according to claim 2, wherein: a plurality of upper baffle plates (11) are arranged in the heat insulation box body (7) between each group of upper water inlet pipes (8) and the upper water outlet pipes (9) in a staggered manner; an upper partition plate (12) is arranged in the heat insulation box body (7) between the two adjacent groups of upper water inlet pipes (8) and the upper water outlet pipes (9).

4. The comprehensive thermal insulation test device for reducing the influence of smoke dust according to claim 1, wherein: the quartz lamp module is composed of a plurality of quartz lamps (13), assembly seats (14), electrodes (15) and cooling modules (16) which are arranged in parallel, wherein the assembly seats (14) are respectively arranged at two ends of each quartz lamp (13), the electrodes (15) are connected to the outer sides of the assembly seats (14), the cooling modules (16) are arranged between the electrodes (15) and the assembly seats (14), cooling liquid flow channels (17) are arranged on the cooling modules (16), one ends of the cooling liquid flow channels (17) are connected with middle water inlet pipes (18), and the other ends of the cooling liquid flow channels (17) are connected with middle water drainage pipes (19); the outside of the electrode (15) is provided with a supporting plate (20) in parallel, and the supporting plate (20) is fixedly connected with the cooling module (16) through insulators (21) respectively.

5. The comprehensive thermal insulation test device for reducing the influence of smoke according to claim 4, wherein: the bottom of the quartz lamp reflecting plate (2) is provided with a cooling box body (22), and the quartz lamp reflecting plate (2) is connected with the cooling box body (22) in a sealing way; a plurality of groups of lower water inlet pipes (23) and lower water outlet pipes (24) are arranged on the cooling box body (22) in pairs; the cooling box body (22) is fixedly connected with the supporting plate (20) through the supporting plate (25).

6. The comprehensive thermal insulation test device for reducing the influence of smoke according to claim 5, wherein: a plurality of lower baffle plates (26) are arranged in the cooling box body (22) between each group of lower water inlet pipes (23) and the lower water outlet pipes (24) in a staggered way; a bottom division plate (27) is arranged in the cooling box body (22) between the two adjacent groups of lower water inlet pipes (23) and the lower water outlet pipes (24).