Building material flame retardancy experiment furnace device

Abstract

The utility model relates to the technical field of building material fireproof performance testing equipment, and discloses a building material flame retardancy experiment furnace device which comprises a furnace body and a control system, one side of the control system is fixedly connected with a gas supply system, the inner wall of the gas supply system is rotatably connected with a rotary column, the outer part of the rotary column is fixedly connected with a hole ball, and the hole ball is fixedly connected with the furnace body. A rotary column is fixedly connected to one end of the air supply system, a rotary knob is slidably connected to one end of the rotary column, two insertion columns are fixedly connected to the outer portion of the rotary knob, the insertion columns and the air supply system are in a clamping relation, an air pump is fixedly connected to the end, away from the control system, of the air supply system, and a conveying pipe is fixedly connected to the output end of the air pump. According to the utility model, the gas quantity can be controlled, so that the flame intensity under different gas supply conditions can be simulated, the fire resistance of the building material can be tested, the rigorous and accurate test result can be effectively ensured, and the actual fire resistance of the material can be truly reflected.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material fire performance test equipment technical field especially relates to a building material incombustibility experimental furnace device. BACKGROUND

[0002] With the rapid development of modern construction industry, the safety and environmental protection of buildings are more and more concerned by people. As one of the important indicators, the fire performance of building materials directly affects the overall safety and service life of buildings. In order to ensure that the fire performance of building materials meets the standard, it is necessary to carry out strict test detection. Building material fire performance test equipment technology is a kind of equipment for evaluating the fire resistance and fireproof effect of materials under fire conditions. This technology simulates the fire environment to monitor the indicators such as burning rate, heat release and smoke production of materials, so as to verify whether the materials meet the relevant standard requirements.

[0003] Through retrieval, the patent announcement number CN217929769U discloses a building material incombustibility experimental furnace, which comprises a supply fan, a supply pipeline, a square flue, a thermocouple, a support, a burner, a differential pressure sensor, a T-shaped differential pressure pipe and a furnace body. The supply fan is connected to the furnace body composed of an outer furnace wall and an inner furnace wall through the supply pipeline. The middle section of the supply pipeline is provided with an orifice flowmeter. The supply pipeline penetrates through the outer furnace wall and communicates with the lower part of the inner furnace wall. The interface of the supply pipeline communicating with the inner furnace wall is fixedly installed with a stainless steel mesh frame above. The support is fixedly installed on the stainless steel mesh frame on the inner side of the inner furnace wall, which can effectively improve the stability of the equipment, reduce the maintenance time of the equipment, and make the equipment run stably for a long time.

[0004] The beneficial effects in the above patent specification mention that by replacing the hot ball anemometer with an orifice flowmeter, the maintenance time caused by damage to the hot ball anemometer can be effectively reduced, and the stability of the equipment can be improved. Although the above patent improves the stability of the equipment, it cannot adjust the gas flow and pressure, so it cannot simulate different intensity of flame environment, resulting in poor accuracy of test results and cannot truly reflect the actual fire resistance of materials. Therefore, a building material incombustibility experimental furnace device is proposed. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a building material incombustibility experimental furnace device, which aims to improve the problem of poor accuracy of test results of part of the equipment in the prior art and cannot truly reflect the actual fire resistance of materials.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of building material incombustibility experimental furnace device, including furnace body, control system, the control system one side fixedly connected with gas supply system, the inner wall of gas supply system is rotatably connected with rotating column, the outside fixedly connected with hole ball of rotating column, the one end slidingly connected with knob of rotating column, the outside fixedly connected with two inserting posts of knob, the inserting post is the engagement relationship with gas supply system, the end fixedly connected with gas pump of gas supply system away from control system, the output end fixedly connected with conveying pipe of gas pump, the other end fixedly connected with combustor of conveying pipe, the inner wall slidingly connected with wind measuring box of furnace body, the inner wall fixedly connected with multiple infrared heating lamps of furnace body, the inner side of furnace body is fixedly connected with support plate, the one side of two support plates is detachably connected with feeding assembly for loading test material, one end of furnace body is fixedly connected with waste gas treatment system.

[0008] By the above technical solution: first, the combustion gas is provided by the gas supply system, then the gas is sent to the inside of the combustor along the conveying pipe 11 by the gas pump, when the gas supply amount needs to be adjusted, the knob can be pulled first to make the inserting post separate from the engagement with the gas supply system, then the knob can be rotated to drive the rotating column and the hole ball to rotate, and the four sides of the hole ball are provided with different numbers of holes, the gas output amount can be adjusted by rotating the hole ball to a certain angle, so as to simulate the influence of flame intensity under different gas supply conditions on building materials, ensure the rigor and accuracy of test results, and truly reflect the actual fire resistance of materials.

[0009] As a further description of the above technical solution:

[0010] The outer side of the gas supply system is rotatably connected with a gasket, and the outer side of the rotating column is sleeved with a spring one.

[0011] By the above technical solution: the spring one here can ensure the stable engagement between the inserting post and the gas supply system, and prevent accidental disengagement.

[0012] As a further description of the above technical solution:

[0013] One end of the spring one is fixedly connected to one side of the gasket, and the other end of the spring one is fixedly connected to one side of the knob.

[0014] By the above technical solution: when the knob is rotated, the spring one here will be rotated together, and the presence of the gasket here can make the spring one rotate together with the knob, to prevent the spring one from breaking due to the torque force generated when the spring one is rotated.

[0015] As a further description of the above technical solution:

[0016] One side of the combustor is fixedly connected with a lifting platform, and the other side of the lifting platform is slidingly connected to the inner wall of the furnace body.

[0017] Through the technical scheme, the lifting platform can adjust the vertical height of the burner, and can be moved to the inner wall of the material to be measured; in addition, the bottom end of the lifting platform is clamped by two slidable horizontal rods, and when it is necessary to adjust the distance in front, back, left and right according to the material to be measured, the horizontal rods can be pulled apart, so that the lifting platform can be moved arbitrarily.

[0018] Further description is made to the technical scheme:

[0019] The feeding assembly comprises a support which is detachably connected to one side of two support plates near one side of the burner, a plurality of slide columns are slidingly connected to the inner wall of the support, one end of the slide column is fixedly connected with a push plate, one end of the push plate is fixedly connected with a spring sheet, the other end of the spring sheet is fixedly connected to the inner side wall of the support, one side of the push plate is slidingly connected with a pressing plate, the pressing plate is fixedly connected with a limiting block near one side of the push plate, one side of the limiting block is fixedly connected with a spring two, the other end of the spring two is fixedly connected to one side of the inner wall of the push plate.

[0020] Through the technical scheme, the support is used to effectively support the material to be measured, when it is necessary to place the material, the material is inserted into the inner wall of the support, at this time the material pushes the pressing plate to move outward, at the same time the spring two is extruded to form a counterforce; in addition, the slide column also slides outward to extrude the spring sheet to shrink, and the counterforce of the spring two can stably clamp the material to be measured, replacing the screw fixing method in the prior art, so that the support can adapt to building materials of different thicknesses and improve the speed of installing building materials, and further improve the speed of test experiments.

[0021] Further description is made to the technical scheme:

[0022] One end of the slide column is fixedly connected with a limiting disc, one side of the limiting disc is in contact with the outer wall of the support.

[0023] Through the technical scheme, the limiting disc limits the sliding range of the slide column.

[0024] Further description is made to the technical scheme:

[0025] The outer part of the hole ball is rotatably connected to the inner wall of the gas supply system, and the inner wall of the gasket is fixedly connected to the outer part of the rotating column.

[0026] Through the technical scheme, the outer part of the hole ball is in close contact with the inner wall of the gas supply system, and a different number of holes are formed in the four large faces of the hole ball in the horizontal direction, and when the hole ball is rotated to different large faces, the adjustment of the amount of gas can be completed.

[0027] As a further description of the above technical solutions:

[0028] The outer part of the conveying pipe is slidably connected to the inner wall of the furnace body, and the outer part of the slide column is slidably connected to the inner wall of the elastic sheet.

[0029] Through the above technical solutions: the conveying pipe here will slide on the inner wall of the furnace body when the lifting platform described above is arbitrarily moved, so as to adapt to different lengths; and the slide column here can provide stable support for the elastic sheet, so that it remains stable when it is stretched and contracted.

[0030] The utility model has the advantages of:

[0031] 1. In the utility model, first pull up the knob, make it drive the plug post to rise, thereby separate the card from the gas supply system, then rotate the knob can drive the rotating column and the hole ball to rotate together, and the four large faces of the hole ball in the horizontal direction are respectively provided with different numbers of holes, when rotating different angles, the control of the gas volume can be completed, so as to simulate the flame intensity under different gas supply conditions, so as to test the fire resistance of building materials, effectively ensure the rigorousness and precision of test results, and truly reflect the actual fire resistance of materials.

[0032] 2. In the utility model, when it is necessary to install the building material to be tested, the material is inserted from the top end of the support, the material will push and extrude the pressing plate, so that the slide column slides on the inner wall of the support, and spring two and the elastic sheet will be extruded, so as to generate a reaction force, because of the double extrusion design, so that the support can adapt to building materials of different thicknesses; at the same time, because the screw fixing method in the prior art is replaced, the speed of installing the building material is improved, and the speed of the test experiment is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A three-dimensional schematic view of a building material flame resistance experimental furnace device is provided for the utility model;

[0034] Figure 2 A structure schematic view of a gas pump of a building material flame resistance experimental furnace device is provided for the utility model;

[0035] Figure 3 A structure schematic view of a gas supply system of a building material flame resistance experimental furnace device is provided for the utility model;

[0036] Figure 4 A Figure 3 Enlarged view of A in the utility model;

[0037] Figure 5 A structure explosion view of a burner of a building material flame resistance experimental furnace device is provided for the utility model;

[0038] Figure 6 For Figure 5 enlarged view of B in

[0039] Legend:

[0040] 1, furnace body; 2, control system; 3, gas supply system; 4, rotating column; 5, hole ball; 6, knob; 7, plug column; 8, gasket; 9, spring I; 10, air pump; 11, conveying pipe; 12, burner; 13, lifting platform; 14, wind measuring box; 15, infrared heating lamp; 16, support plate; 17, support; 18, sliding column; 19, limit disc; 20, push plate; 21, elastic sheet; 22, extrusion plate; 23, limit block; 24, spring II; 25, waste gas treatment system. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0042] With reference to Figures 2 to 4 , the utility model provides an embodiment: a building material incombustibility experiment furnace device, including furnace body 1, control system 2, control system 2 one side fixedly connected with gas supply system 3, the gas supply system 3 here is used to provide combustible gas for furnace body 1, the inner wall of gas supply system 3 is rotatably connected with rotating column 4, the rear half of gas supply system 3 here is a section of empty pipe, provides stable rotating support for rotating column 4, the outside fixedly connected with hole ball 5 of rotating column 4, the four big faces of hole ball 5 here are opened in horizontal direction different number of holes.

[0043] The outside of hole ball 5 is rotatably connected to the inner wall of gas supply system 3, and the gas supply system 3 provides stable rotating support for the hole ball 5. One end of the rotating column 4 is slidably connected with the knob 6. When the knob 6 is rotated, the rotating column 4 can be rotated. The knob 6 is externally fixedly connected with two plug columns 7. The plug columns 7 are in a clamping relationship with the gas supply system 3. The plug columns 7 can ensure the stability of the hole ball 5. The outer surface of the gas supply system 3 is rotatably connected with the gasket 8. The inner wall of the gasket 8 is fixedly connected to the outer surface of the rotating column 4. The rotating column 4 provides stable support for the gasket 8.

[0044] The outer sleeve of the rotating column 4 is provided with a spring 9, which can ensure the engagement of the plug column 7 with the gas supply system 3, prevent accidental falling, and prevent the spring 9 from being broken due to torque force after a certain number of rotations. The end of the spring 9 is fixedly connected to one side of the gasket 8, and the other end of the spring 9 is fixedly connected to one side of the knob 6. When the knob 6 is rotated, the spring 9 is rotated, and the gasket 8 is further rotated to prevent the spring 9 from being broken due to torque force after a certain number of rotations. The gas pump 10 is fixedly connected to the end of the gas supply system 3 away from the control system 2, which can extract the combustible gas in the gas supply system 3.

[0045] Specifically, when the output of the combustible gas needs to be adjusted, first pull up the knob 6 so that the plug column 7 is disengaged from the gas supply system 3, then rotate the knob 6, which will drive the rotating column 4 and the hole ball 5 to rotate. Because the hole ball 5 has different numbers of holes in the four large faces in the horizontal direction, the output can be adjusted by rotating to different large faces. After adjustment, release your hand, and the plug column 7 will be re-engaged with the hole in the gas supply system 3 under the action of the spring 9.

[0046] Referring to Figure 1 , Figure 5 and Figure 6 , the output end of the gas pump 10 is fixedly connected with a delivery pipe 11, which is used to deliver combustible gas. The outer surface of the delivery pipe 11 is slidably connected to the inner wall of the furnace body 1, which provides stable support for the delivery pipe 11. The other end of the delivery pipe 11 is fixedly connected with a burner 12. After the combustible gas is transmitted to the inside of the burner 12, the heat resistance of the building material can be tested. The side of the burner 12 is fixedly connected with a lifting platform 13, which can adjust the vertical position of the burner 12. The other side of the lifting platform 13 is slidably connected to the inner wall of the furnace body 1. The front and back of the lifting platform 13 have two movable cross plates. When the horizontal position of the burner 12 needs to be adjusted, the cross plates can be pulled to release the clamping of the lifting platform 13, and then the adjustment can be made. After the adjustment is completed, the lifting platform 13 can be fixed again by using the two cross plates. The inner wall of the furnace body 1 is slidably connected with an air flow meter 14, which is provided with an air flow meter in the inside, which can be used to measure the wind speed in the device.

[0047] The inner wall of the furnace body 1 is fixedly connected with a plurality of infrared heating lamps 15. The infrared heating lamps 15 can uniformly output high temperature to the building materials. In cooperation with the burner 12, a stable high-temperature environment for the building materials can be created in a short time. The inner two sides of the furnace body 1 are fixedly connected with the support plates 16. The furnace body 1 provides support for the support plates 16. One side of the two support plates 16 is detachably connected with a feeding assembly for accommodating test materials. The feeding assembly comprises a support 17. One side of the support 17 close to the burner 12 is detachably connected to one side of the two support plates 16. The support 17 is used to fix the building materials to be tested. After the building materials are fixed, the support 17 is pushed above the support plates 16 to provide support for the support 17. A plurality of slide columns 18 are slidably connected to the inner wall of the support 17. The support 17 provides stable sliding support for the slide columns 18. One end of the slide column 18 is fixedly connected with a limiting disc 19. One side of the limiting disc 19 is in contact with the outer wall of the support 17. The limiting disc 19 limits the maximum sliding range of the slide column 18.

[0048] One end of the slide column 18 is fixedly connected with a push plate 20. When the slide column 18 slides, the push plate 20 also slides. One end of the push plate 20 is fixedly connected with an elastic sheet 21. The other end of the elastic sheet 21 is fixedly connected to the inner side wall of the support 17. The elastic sheet 21 has a certain elasticity. When the push plate 20 moves outward, the elastic sheet 21 is compressed to generate a reaction force. The outer side of the slide column 18 is slidably connected to the inner wall of the elastic sheet 21. One side of the push plate 20 is slidably connected with a pressing plate 22. One side of the pressing plate 22 close to the push plate 20 is fixedly connected with a limiting block 23. The limiting block 23 ensures the connection between the pressing plate 22 and the push plate 20. One side of the limiting block 23 is fixedly connected with a spring 24. The other end of the spring 24 is fixedly connected to the inner wall of the push plate 20. When the building materials press the pressing plate 22, the spring 24 is also compressed to generate a reaction force, thereby stably clamping the building materials. One end of the furnace body 1 is fixedly connected with a waste gas treatment system 25. The waste gas treatment system 25 can filter and discharge the waste gas after the test. The filter in the waste gas treatment system 25 adopts activated carbon filter material, which can effectively adsorb harmful substances.

[0049] Specifically, first, the sample holder 17 can be removed from the top end of the support plate 16, and then the building material to be tested is slid into the inner wall of the sample holder 17 from top to bottom. At this time, the four sides of the material will first contact the pressing plate 22 and give a pressing force, so that the sliding column 18 slides in the inner wall of the sample holder 17, and the elastic sheet 21 and the spring 24 will be pressed, generating a reaction force, so that the pressing plate 22 clamps the material. Because of the double extrusion design, the sample holder 17 can adapt to building materials of different thicknesses. At the same time, the sample holder 17 also improves the speed of installing building materials, further improving the speed of the test experiment. Then the sample holder 17 is placed back into the furnace body 1, at which time the air pump 10 can be started to transfer the combustible gas from the inside of the gas supply system 3 to the burner 12 along the conveying pipe 11 to test the heat resistance of the material. At the same time, the infrared heating lamp 15 is also started. The burner 12 itself can create a stable high-temperature environment for the building material in a short time. In addition, the lifting platform 13 can adjust the position of the burner 12 in the vertical direction, and when it is necessary to adjust the position of the burner 12 in front of and behind and left and right according to the material, the two horizontal plates for fixing the lifting platform 13 can be slid, and then the lifting platform 13 is moved to the appropriate position, and then the two horizontal plates are used to fix the lifting platform 13. After the test is completed, the exhaust gas will pass through the exhaust gas treatment system 25, and the filter in the exhaust gas treatment system 25 uses activated carbon filter material, which can effectively adsorb harmful substances, and then the non-polluted gas can be discharged.

[0050] Working principle: First, the sample holder 17 can be removed from the inside of the furnace body 1, and then the building material to be tested is slid down from the top end of the sample holder 17. At this time, the four sides of the material will first contact the pressing plate 22, which will press the spring 24 while sliding on one side of the push plate 20. At the same time, the sliding column 18 will also slide in the inner wall of the sample holder 17, so that the push plate 20 presses the elastic sheet 21 in cooperation with the sample holder 17, causing it to bend and generate a reaction force. In cooperation with the spring 24, the building material to be tested can be tightly clamped.

[0051] Subsequently, the sample holder 17 is placed back on the two support plates 16, and the lifting platform 13 can also be adjusted according to the specific position of the material, and then the two horizontal plates at the bottom end of the lifting platform 13 are pulled to cancel the clamping of the lifting platform 13. At this time, the position of the lifting platform 13 in the horizontal direction can be adjusted. After completion, the furnace door is closed, the control system 2 is used to open the gas supply system 3, so that it starts to supply gas. The gas will be pumped out by the air pump 10 and transmitted to the inside of the burner 12 along the conveying pipe 11. At the same time, the infrared heating lamp 15 is turned on, and the two cooperate to create a stable high-temperature environment for the building material in a short time.

[0052] At this time, the knob 6 can be pulled up to make the plug post 7 disengage from the gas supply system 3, and then the knob 6 is rotated to make the rotating post 4 and the hole ball 5 rotate, and the hole ball 5 is provided with different numbers of holes in four large surfaces in the horizontal direction, and the output of the combustible gas can be controlled by rotating to different large surfaces, and at this time, the output of the gas can be reasonably adjusted according to requirements, so as to simulate the flame intensity under different gas supply conditions, so as to test the fire resistance of the building material, effectively ensure the rigor and precision of the test results, and truly reflect the actual fire resistance of the material. After the adjustment is completed, the hand is loosened, and the plug post 7 is re-engaged with the gas supply system 3 under the action of the spring 9.

[0053] After the test is completed, the waste gas passes through the waste gas treatment system 25, and the filter in the waste gas treatment system 25 adopts activated carbon filter material, which can effectively adsorb harmful substances, and then the pollution-free gas is discharged.

[0054] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A building material flame resistance test furnace device, comprising a furnace body (1), a control system (2), characterized in that: One side of the control system (2) is fixedly connected with a gas supply system (3), the inner wall of the gas supply system (3) is rotatably connected with a rotating column (4), the outer part of the rotating column (4) is fixedly connected with a hole ball (5), one end of the rotating column (4) is slidably connected with a knob (6), the outer part of the knob (6) is fixedly connected with two insertion columns (7), the insertion columns (7) are in clamping relationship with the gas supply system (3), one end of the gas supply system (3) away from the control system (2) is fixedly connected with a gas pump (10), the output end of the gas pump (10) is fixedly connected with a conveying pipe (11), the other end of the conveying pipe (11) is fixedly connected with a burner (12), the inner wall of the furnace body (1) is slidably connected with a wind measuring box (14), the inner wall of the furnace body (1) is fixedly connected with a plurality of infrared heating lamps (15), the inner two sides of the furnace body (1) are fixedly connected with supporting plates (16), one side of the two supporting plates (16) is detachably connected with a feeding assembly for loading test materials, one end of the furnace body (1) is fixedly connected with a waste gas treatment system (25), four large faces of the hole ball (5) in the horizontal direction are respectively provided with different numbers of holes.

2. The building material flame resistance test furnace apparatus according to claim 1, characterized by: The outer part of the gas supply system (3) is rotatably connected with a gasket (8), and the outer part of the rotating column (4) is sleeved with a spring (9).

3. The building material flame resistance test furnace apparatus according to claim 2, characterized by: One end of the spring (9) is fixedly connected to one side of the gasket (8), and the other end of the spring (9) is fixedly connected to one side of the knob (6).

4. The building material flame resistance test furnace apparatus according to claim 1, characterized by: One side of the burner (12) is fixedly connected with a lifting platform (13), and the other side of the lifting platform (13) is slidably connected to the inner wall of the furnace body (1).

5. The building material flame resistance test furnace apparatus according to claim 1, characterized by: The feeding assembly comprises a support (17), one side of the support (17) close to the burner (12) is detachably connected to one side of the two supporting plates (16), the inner wall of the support (17) is slidably connected with a plurality of sliding columns (18), one end of the sliding column (18) is fixedly connected with a push plate (20), one end of the push plate (20) is fixedly connected with an elastic sheet (21), the other end of the elastic sheet (21) is fixedly connected to the inner side wall of the support (17), one side of the push plate (20) is slidably connected with a pressing plate (22), one side of the pressing plate (22) close to the push plate (20) is fixedly connected with a limiting block (23), one side of the limiting block (23) is fixedly connected with a spring (24), and the other end of the spring (24) is fixedly connected to one side of the inner wall of the push plate (20).

6. The building material flame resistance test furnace apparatus according to claim 5, characterized by: One end of the sliding column (18) is fixedly connected with a limiting disc (19), and one side of the limiting disc (19) is in contact with the outer wall of the support (17).

7. The building material flame resistance test furnace apparatus according to claim 2, characterized by: The outer part of the hole ball (5) is rotatably connected to the inner wall of the gas supply system (3), and the inner wall of the gasket (8) is fixedly connected to the outer part of the rotating column (4).

8. The building material flame resistance test furnace apparatus according to claim 5, characterized by: The outer part of the conveying pipe (11) is slidably connected to the inner wall of the furnace body (1), and the outer part of the sliding column (18) is slidably connected to the inner wall of the elastic sheet (21).

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