Device for testing incombustibility of building materials

Abstract

The utility model discloses a building material incombustibility testing device, and belongs to the technical field of building material test.The building material incombustibility testing device comprises a base, a heightening table is fixedly installed at the top end of the base, a furnace body is arranged above the heightening table, a cooling mechanism is arranged on the outer ring of the furnace body and comprises a cooling sleeve, and the cooling sleeve is fixedly installed at the top of the heightening table; the furnace body is fixedly installed in the cooling sleeve, and a ventilation cavity is formed in the position, below the furnace body, of the bottom of the cooling sleeve. The building material sample is supported and the height of the building material sample is adjusted through the fixing frame, the vertical rod and the sample support, the building material sample is fixed through the observation mirror, the building material sample is heated and tested through the furnace body, after the test is completed, the motor is started to drive the fan to rotate, and cold air enters the furnace body through the air inlet; according to the scheme, by optimizing the air duct structure, the emission of heat in the furnace body is accelerated, so that long-time preheating waiting is not needed when a test is restarted, and the test efficiency is greatly improved.

Description

Technical Field

[0001] This application relates to the field of building material testing technology, and in particular to a testing device for the non-combustibility of building materials. Background Technology

[0002] The non-combustibility of building materials is one of the important indicators for evaluating building safety. The property of materials that do not ignite, do not smolder, and do not char under high temperature or flame is crucial for preventing fires and slowing the spread of fire.

[0003] However, existing building material non-combustibility testing devices require a long time for the furnace to cool naturally after testing, and restarting the test requires a long preheating time, resulting in low testing efficiency. Therefore, this application provides a building material non-combustibility testing device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a non-combustible building material testing device, which overcomes the deficiencies of existing technologies and aims to solve the problem that existing non-combustible building material testing devices have a long natural cooling time after the test is completed, and require a long preheating time to restart the test, resulting in low testing efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: a non-combustible building material testing device, comprising a base, a raised platform fixedly installed at the top of the base, a furnace body arranged above the raised platform, a cooling mechanism arranged around the outer ring of the furnace body, the cooling mechanism comprising a cooling sleeve, the cooling sleeve fixedly installed at the top of the raised platform, the furnace body fixedly installed inside the cooling sleeve, a ventilation cavity arranged at the bottom of the cooling sleeve below the furnace body, a crossbar fixedly installed at the ventilation cavity, a motor fixedly installed in the middle of the crossbar, a fan fixedly installed at the output end of the motor, two sets of uprights fixedly installed at the top of the mounting frame, a sample holder installed in the middle of the two sets of uprights, an observation mirror installed on one side of the sample holder, an air inlet opened at the bottom of the furnace body and the air inlet communicating with the ventilation cavity, and several sets of ventilation openings opened at the bottom of the raised platform and the ventilation openings communicating with the ventilation cavity.

[0006] By adopting the above technical solution, a fixed frame, uprights, and sample holder are used to support the building material sample and adjust its height. The sample is fixed by an observation mirror. The sample is heated and tested in the furnace. After the test is completed, the motor is started to drive the fan to rotate. Cold air enters the furnace through the air inlet, accelerating the discharge of hot air from the top of the furnace. This solution optimizes the air duct structure and speeds up the discharge of heat from inside the furnace. Therefore, there is no need for a long preheating wait when restarting the test, which greatly improves the testing efficiency.

[0007] As a preferred technical solution of this application, the furnace body includes an inner layer, an outer insulation layer, and a heating wire, wherein the heating wire is fixedly installed between the inner layer and the outer insulation layer.

[0008] By adopting the above technical solution, the inner layer directly contacts the building material sample, the heating wire provides heating energy, the heat-insulating outer layer reduces heat loss, and the design of the air inlet reduces the accumulation of residual heat inside, which helps to improve testing efficiency and accuracy.

[0009] As a preferred technical solution of this application, an observation mirror is rotatably connected to the top of the two sets of uprights, and a damper is installed at the connection between the upright and the observation mirror.

[0010] By adopting the above technical solution, the observation mirror facilitates the test personnel to observe and record the test process, and the damper allows the observation mirror to remain stable within a certain range, which is beneficial for the test personnel to observe the combustion of building material samples from different angles.

[0011] As a preferred technical solution of this application, a water-cooling pipe is fixedly installed on the outer wall of the inner layer. The water-cooling pipe is located between the inner layer and the cooling sleeve, and both ends of the water-cooling pipe pass through the outer wall of the cooling sleeve.

[0012] By adopting the above technical solution, with both ends of the water-cooling pipe located on the outside of the cooling jacket, it is easy to connect to the external circulating water circuit. The cold water in the water-cooling pipe quickly removes the heat from the furnace body, shortening the cooling time. In conjunction with the cooling mechanism, the furnace body is cooled synchronously, which greatly improves the cooling speed of the furnace body and further shortens the test interval time.

[0013] As a preferred technical solution of this application, the water-cooling pipe is arranged in a spiral shape.

[0014] By adopting the above technical solution, the spiral-shaped water-cooling pipes increase the contact area with the inner layer, improve heat exchange efficiency, and further accelerate the cooling speed of the furnace body.

[0015] As a preferred technical solution of this application, a support is fixedly installed on the top of a set of the uprights, the support is located between the sample holder and the observation mirror, and a camera is rotatably connected to the top of the support.

[0016] By adopting the above technical solution, the combustion status of the building material sample as seen by the observation mirror can be recorded in real time through the support, which facilitates subsequent analysis and research.

[0017] As a preferred technical solution of this application, the outer surface of the observation mirror is coated with an anti-fog coating.

[0018] By adopting the above technical solution, the anti-fog coating prevents the observation mirror from fogging due to temperature changes during the test, thus ensuring the clarity of the observation and improving the accuracy of the test.

[0019] As a preferred technical solution of this application, a temperature sensor is fixedly installed on the inner wall of the inner layer, and a controller is fixedly installed on one side of the base.

[0020] By adopting the above technical solution, a temperature sensor is used to monitor the temperature inside the furnace in real time and transmit the signal to the controller. The controller controls the operation of relevant components according to the preset temperature data, thereby improving the automation level of the device.

[0021] The beneficial effects of this application are:

[0022] 1. A fixed frame, uprights, and sample holder are used to support the building material sample and adjust its height. The sample is fixed by an observation mirror. The sample is heated and tested in the furnace. After the test, the motor is started to drive the fan to rotate. Cold air enters the furnace through the air inlet, accelerating the discharge of hot air from the top of the furnace. This solution optimizes the air duct structure, which speeds up the discharge of heat from the furnace. Therefore, there is no need for a long preheating wait when restarting the test, which greatly improves the testing efficiency.

[0023] 2. The inner layer directly contacts the building material sample, the heating wire provides heating energy, the outer insulation layer reduces heat loss, and the design of the air inlet reduces the accumulation of residual heat inside, which helps to improve testing efficiency and accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a cross-sectional view of the cooling jacket.

[0026] Figure 3 This is a schematic diagram of the furnace body structure of this application;

[0027] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Base; 2. Elevating platform; 3. Furnace body; 301. Inner layer; 302. Insulation outer layer; 303. Heating wire; 304. Air inlet; 4. Cooling mechanism; 401. Cooling jacket; 402. Ventilation cavity; 403. Crossbar; 404. Motor; 405. Fan; 406. Ventilation port; 407. Water cooling pipe; 5. Fixture; 6. Upright; 7. Sample holder; 8. Adjusting pin; 9. Observation mirror; 10. Support; 11. Camera; 12. Temperature sensor; 13. Controller. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0030] Reference Figure 1-4 A non-combustible building material testing device includes a base 1, a raised platform 2 fixedly installed at the top of the base 1, a furnace body 3 arranged above the raised platform 2, a cooling mechanism 4 arranged around the outer ring of the furnace body 3, the cooling mechanism 4 including a cooling sleeve 401, the cooling sleeve 401 fixedly installed at the top of the raised platform 2, the furnace body 3 fixedly installed inside the cooling sleeve 401, a ventilation cavity 402 arranged at the bottom of the cooling sleeve 401 below the furnace body 3, a crossbar 403 fixedly installed at the ventilation cavity 402, and a motor 404 fixedly installed in the middle of the crossbar 403. A fan 405 is fixedly installed at the output end of the motor 404. Two sets of uprights 6 are fixedly installed at the top of the fixed frame 5. A sample holder 7 is installed in the middle of the two sets of uprights 6. An observation mirror 9 is installed on one side of the sample holder 7. An air inlet 304 is opened at the bottom of the furnace body 3 and is connected to the ventilation cavity 402. Several sets of ventilation openings 406 are opened at the bottom of the raising platform 2 and are connected to the ventilation cavity 402. An observation mirror 9 is rotatably connected to the top of the two sets of uprights 6. A damper is installed at the connection between the uprights 6 and the observation mirror 9.

[0031] The building material sample is supported by a fixing frame 5, a vertical pole 6, and a sample holder 7, which are used to adjust the height of the sample. It is then fixed by an observation mirror 9. The sample is heated and tested in the furnace body 3. After the test, the motor 404 drives the fan 405 to rotate, allowing cold air to enter the furnace body 3 through the air inlet 304, accelerating the discharge of hot air from the top of the furnace body 3. This design optimizes the air duct structure, accelerating the discharge of heat from the furnace body 3. Therefore, a long preheating period is not required when restarting the test, greatly improving testing efficiency. The observation mirror 9 facilitates observation and recording of the test process by the testing personnel. The damper allows the observation mirror 9 to remain stable within a certain range, enabling the testing personnel to observe the combustion of the building material sample from different angles.

[0032] Reference Figure 2-4 The furnace body 3 includes an inner layer 301, an outer insulation layer 302, and a heating wire 303. The heating wire 303 is fixedly installed between the inner layer 301 and the outer insulation layer 302. A water-cooling pipe 407 is fixedly installed on the outer wall of the inner layer 301. The water-cooling pipe 407 is located between the inner layer 301 and the cooling sleeve 401. Both ends of the water-cooling pipe 407 pass through the outer wall of the cooling sleeve 401.

[0033] The inner layer 301 directly contacts the building material sample, the heating wire 303 provides heating energy, the heat-insulating outer layer 302 reduces heat loss, and the design of the air inlet 304 reduces the accumulation of residual heat inside, which helps to improve testing efficiency and accuracy. The two ends of the water cooling pipe 407 are located on the outside of the cooling jacket 401, which facilitates connection with the external circulating water circuit. The cold water in the water cooling pipe 407 quickly removes the heat from the furnace body 3, shortens the cooling time, and works in conjunction with the cooling mechanism 4 to cool the furnace body 3 simultaneously, which greatly improves the cooling speed of the furnace body 3 and further shortens the testing interval.

[0034] Reference Figure 1-3 The water-cooling pipe 407 is arranged in a spiral shape; the outer surface of the observation mirror 9 is coated with an anti-fog coating; the spiral arrangement of the water-cooling pipe 407 increases the contact area with the inner layer 301, improves the heat exchange efficiency, and further accelerates the cooling speed of the furnace body 3; the anti-fog coating prevents the observation mirror 9 from fogging due to temperature changes during the test, which would affect the observation effect, ensure the clarity of the observation, and improve the accuracy of the test.

[0035] Reference Figure 1-3 A support 10 is fixedly installed on the top of a set of uprights 6. The support 10 is located between the sample holder 7 and the observation mirror 9. A camera 11 is rotatably connected to the top of the support 10. A temperature sensor 12 is fixedly installed on the inner wall of the inner layer 301. A controller 13 is fixedly installed on one side of the base 1. The support 10 can record the combustion of the building material sample seen by the observation mirror 9 in real time, which is convenient for subsequent analysis and research. The temperature sensor 12 is used to monitor the temperature inside the furnace 3 in real time and transmit the signal to the controller 13. The controller 13 controls the operation of relevant components according to the preset temperature data, which improves the automation level of the device.

[0036] Working principle: The building material sample is supported by the fixing frame 5, the upright 6, and the sample holder 7, and the height of the building material sample is adjusted. It is fixed by the observation mirror 9. The building material sample is heated and tested by the furnace body 3. After the test is completed, the fan 405 is driven by the start motor 404 to rotate. Cold air enters the furnace body 3 through the air inlet 304, and the hot air is accelerated to be discharged from the top of the furnace body 3. The inner layer 301 directly contacts the building material sample, the heating wire 303 provides heating energy, the heat insulation outer layer 302 reduces heat loss, and the design of the air inlet 304 reduces the accumulation of residual heat inside.

[0037] Among them, the observation mirror 9 facilitates the test personnel to observe and record the test process, and the damper allows the observation mirror 9 to remain stably within a certain range. The two ends of the water cooling pipe 407 are located on the outside of the cooling jacket 401, which facilitates connection with the external circulating water circuit. The cold water in the water cooling pipe 407 quickly removes the heat of the furnace body 3, and works in conjunction with the cooling mechanism 4 to cool the furnace body 3 simultaneously.

[0038] Meanwhile, the spiral-shaped water-cooling pipe 407 increases the contact area with the inner layer 301; the support 10 can record the combustion of the building material sample as seen by the observation mirror 9 in real time.

[0039] In addition, an anti-fog coating is used to prevent the observation mirror 9 from fogging due to temperature changes during the test; a temperature sensor 12 is used to monitor the temperature inside the furnace body 3 in real time and transmit the signal to the controller 13, which controls the operation of relevant components according to the preset temperature data.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing device for the non-combustibility of building materials, comprising a base (1), characterized in that, A raised platform (2) is fixedly installed at the top of the base (1). A furnace body (3) is arranged above the raised platform (2). A cooling mechanism (4) is arranged on the outer ring of the furnace body (3). The cooling mechanism (4) includes a cooling sleeve (401). The cooling sleeve (401) is fixedly installed at the top of the raised platform (2). The furnace body (3) is fixedly installed inside the cooling sleeve (401). A ventilation cavity (402) is arranged at the bottom of the cooling sleeve (401) below the furnace body (3). A crossbar (403) is fixedly installed at the ventilation cavity (402). A motor (404) is fixedly installed in the middle, and a fan (405) is fixedly installed at the output end of the motor (404). Two sets of uprights (6) are fixedly installed at the top of the fixed frame (5). A sample holder (7) is installed in the middle of the two sets of uprights (6). An observation mirror (9) is installed on one side of the sample holder (7). An air inlet (304) is opened at the bottom of the furnace body (3), and the air inlet (304) is connected to the ventilation cavity (402). Several sets of ventilation openings (406) are opened at the bottom of the raising platform (2), and the ventilation openings (406) are connected to the ventilation cavity (402).

2. The non-combustibility testing device for building materials according to claim 1, characterized in that, The furnace body (3) includes an inner layer (301), an outer insulation layer (302), and a heating wire (303), wherein the heating wire (303) is fixedly installed between the inner layer (301) and the outer insulation layer (302).

3. The non-combustibility testing device for building materials according to claim 1, characterized in that, The tops of the two sets of uprights (6) are rotatably connected to observation mirrors (9), and a damper is installed at the connection between the uprights (6) and the observation mirrors (9).

4. The non-combustibility testing device for building materials according to claim 2, characterized in that, A water-cooling pipe (407) is fixedly installed on the outer wall of the inner layer (301). The water-cooling pipe (407) is located between the inner layer (301) and the cooling sleeve (401). Both ends of the water-cooling pipe (407) pass through the outer wall of the cooling sleeve (401).

5. The non-combustibility testing device for building materials according to claim 4, characterized in that, The water-cooling pipe (407) is arranged in a spiral shape.

6. The non-combustibility testing device for building materials according to claim 1, characterized in that, A support (10) is fixedly installed on the top of a set of the uprights (6). The support (10) is located between the sample holder (7) and the observation mirror (9). A camera (11) is rotatably connected to the top of the support (10).

7. The non-combustibility testing device for building materials according to claim 3, characterized in that, The outer surface of the observation mirror (9) is coated with an anti-fog coating.

8. The non-combustibility testing device for building materials according to claim 2, characterized in that, A temperature sensor (12) is fixedly installed on the inner wall of the inner layer (301), and a controller (13) is fixedly installed on one side of the base (1).

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