Combustion testing device for steel structure fireproof coating

Abstract

The utility model provides a combustion testing device for a steel structure fireproof coating. The combustion testing device comprises a machine body; a testing assembly is arranged on the inner side of the machine body, and a moving assembly is arranged on the right side of the machine body; the testing assembly comprises a combustion plate arranged on the inner side of the machine body, the combustion plate is in a transparent net shape, a supporting frame is arranged on the top of the inner wall of the machine body, and three testing steel plates are placed on the top of the supporting frame in a left-right sliding mode. According to the combustion testing device for the steel structure fireproof coating, external air is blown into the machine body through the air blower to form good air circulation, so that comburent is fully combusted, the rotation handle is rotated to drive the two-way threaded lead screw to rotate, then the two threaded sleeves are driven to move front and back, and the combustion performance of the steel structure fireproof coating is improved. And the furnace mouth cover can move back and forth, so that the high-temperature furnace mouth cover can be conveniently moved when comburent is added in the combustion process.

Description

Technical Field

[0001] The utility model relates to the field of fireproof coatings, in particular to a combustion test device for steel structure fireproof coatings. Background Technique

[0002] Steel structure fireproof coatings are a kind of building coatings, which are commonly used on the surfaces of steel equipment and components, and can play basic fireproof, earthquake-resistant and decorative roles. Their main function is flame retardancy. If a fire occurs, they can also play a certain fireproof function, and no harmful gases will be produced under the burning of flames.

[0003] Steel structures, as building materials, have some inevitable defects in terms of fire protection. Generally, the fire resistance limit of an unprotected steel structure is about 15 minutes. Usually, it will lose its load-bearing capacity at a temperature of 450-650 °C, and large deformations will occur, resulting in the bending of steel columns and steel beams and even the collapse of the structure. During a fire, the fireproof coating can resist high temperatures and extend the escape and rescue time. Therefore, steel structures need to be protected by fireproof coatings. When a fire occurs, it can resist high temperatures, protect the steel structure from deforming and collapsing within a certain period of time, and extend the escape time of personnel and the fire rescue time.

[0004] By carrying out strict inspection items, such as thickness measurement, adhesion test, anti-peeling detection and fire resistance test, the effectiveness of the fireproof coating can be guaranteed. The detection of steel structure fireproof coatings not only complies with regulatory standards, but also can improve the project quality, ensure the safety of buildings and meet insurance requirements. Application No.: CN202022615303.8 discloses a performance test device for steel structure fireproof coatings, which solves the problem that the existing fireproof coatings cannot effectively simulate the fire scene environment during testing by setting a sample placement rack above the combustion chamber. However, in real life, fires are often caused by strong winds fully burning combustibles such as wood products. During the use of this device, the combustibles cannot be fully burned to simulate the actual situation, and when adding combustibles during the combustion process, the temperature of the furnace mouth cover plate of this device is very high, which is not convenient for adding combustibles quickly and conveniently.

[0005] Therefore, it is necessary to provide a combustion test device for steel structure fireproof coatings to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides a combustion test device for steel structure fireproof coatings, which solves the problem that in the related art, during the use of some existing combustion test devices for steel structure fireproof coatings, the combustion substances cannot be fully burned and it is not convenient to add fuel midway.

[0007] To solve the above technical problems, a combustion test device for steel structure fireproof coatings provided by the utility model includes: a machine body;

[0008] A test component is arranged inside the body, and a moving component is arranged on the right side of the body;

[0009] The test component includes a combustion plate arranged inside the body. The combustion plate is a transparent mesh. A support frame is arranged at the top of the inner wall of the body. Three test steel plates are placed on the top of the support frame and can slide left and right. The left sides of the three test steel plates penetrate through the inner wall of the body and extend to the outside of the body. Heat insulation handles are arranged on the left sides of the three test steel plates;

[0010] The moving component includes rotating frames arranged in a front-back mirror image on the right side of the body. A bidirectional threaded screw rod is rotatably arranged inside the rotating frames. Two threaded sleeves that can move back and forth are threadedly connected to the circumferential side of the bidirectional threaded screw rod. A furnace mouth cover is arranged on the top of the two threaded sleeves. The left side of the furnace mouth cover is slidably connected to the right side of the body.

[0011] Preferably, an observation window is arranged on the front of the body, and a chimney for exhausting smoke is opened on the top of the body.

[0012] Preferably, the bottom of the inner wall of the body is in an inverted trapezoid shape, which is convenient for the ashes after the combustion of the combustibles to fall. A sliding frame is arranged at the bottom of the body. An ash receiving box is slidably connected to the inside of the sliding frame in a front-back manner. The top of the ash receiving box communicates with the bottom of the body.

[0013] Preferably, a placement rack is arranged at the bottom of the left side of the body, and a fire tong is placed on the top of the placement rack.

[0014] Preferably, a rotating handle for driving its rotation is arranged at the front end of the bidirectional threaded screw rod.

[0015] Preferably, a blower is communicated with the back of the body. The blower is in a downward inclined shape. Two support feet are arranged on both sides of the bottom of the body.

[0016] Compared with the related art, a combustion test device for steel structure fireproof coatings provided by the present utility model has the following beneficial effects:

[0017] The present utility model provides a combustion test device for steel structure fireproof coatings. By blowing external air into the body through a blower to form good air circulation, the combustibles can be fully burned. By rotating the rotating handle, the rotation of the bidirectional threaded screw rod is driven, and then the back-and-forth movement of the two threaded sleeves is driven, so that the back-and-forth movement of the furnace mouth cover is realized, which is convenient for moving the high-temperature furnace mouth cover when adding combustibles during the combustion process. Description of the Drawings

[0018] Figure 1Schematic diagram of a preferred embodiment of a combustion test device for a steel structure fireproof coating provided by the present utility model;

[0019] Figure 2 For Figure 1 Schematic diagram of the left view of the shown body;

[0020] Figure 3 For Figure 1 Schematic diagram of the rear view of the shown body;

[0021] Figure 4 For Figure 1 Schematic diagram of the sectional view of the shown body;

[0022] Figure 5 For Figure Figure 3 Schematic diagram of the shown moving component.

[0023] Reference numerals in the figure: 1, body; 2, test component; 21, combustion plate; 22, support frame; 23, test steel plate; 24, heat insulation handle; 25, observation window; 26, chimney; 3, moving component; 31, rotating frame; 32, bidirectional threaded lead screw; 33, threaded sleeve; 34, furnace mouth cover; 35, rotating handle; 4, sliding frame; 5, ash box; 6, placement rack; 7, poker; 8, blower; 9, support feet. Detailed implementation manners

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , where Figure 1 is the schematic diagram of a preferred embodiment of a combustion test device for a steel structure fireproof coating provided by the present utility model; Figure 2 For Figure 1 Schematic diagram of the left view of the shown body; Figure 3 For Figure 1 Schematic diagram of the rear view of the shown body; Figure 4 For Figure 1 Schematic diagram of the sectional view of the shown body; Figure 5 For Figure Figure 3 Schematic diagram of the shown moving component, a combustion test device for a steel structure fireproof coating, comprising: a body 1;

[0026] A test component 2 is arranged inside the body 1, and a moving component 3 is arranged on the right side of the body 1;

[0027] The test component 2 includes a combustion plate 21 disposed inside the body 1. The combustion plate 21 is a transparent mesh. At the top of the inner wall of the body 1, there is a support frame 22. On the top of the support frame 22, three test steel plates 23 are placed so as to be slidable left and right. The left sides of the three test steel plates 23 penetrate through the inner wall of the body 1 and extend to the outside of the body 1. Heat insulation handles 24 are provided on the left sides of the three test steel plates 23.

[0028] Combustibles are placed on the combustion plate 21 to test the three test steel plates 23 at the top. The design of the three test steel plates 23 not only allows for reference and comparison but also enables the observation of the performance of the fireproof coating at different temperatures.

[0029] The moving component 3 includes rotating frames 31 which are arranged in a front-back mirror image on the right side of the body 1. Inside the rotating frames 31, a bidirectional threaded lead screw 32 is rotatably provided. Two threaded sleeves 33 that can move back and forth are threadedly connected to the circumferential side of the bidirectional threaded lead screw 32. At the tops of the two threaded sleeves 33, there is a furnace opening cover 34. The left side of the furnace opening cover 34 is slidably connected to the right side of the body 1.

[0030] By rotating the bidirectional threaded lead screw 32, the back-and-forth movement of the two threaded sleeves 33 is driven, thereby driving the back-and-forth movement of the furnace opening cover 34. On the right side of the body 1, there is a chute for cooperating with the convex block on the left side of the furnace opening cover 34.

[0031] An observation window 25 is provided on the front of the body 1, and a chimney 26 for smoke exhaust is provided at the top of the body 1.

[0032] The material of the observation window 25 is transparent and fireproof, and is used to observe the performance of the fireproof coating during combustion.

[0033] The bottom of the inner wall of the body 1 is in an inverted trapezoid shape, which facilitates the falling of the ashes after the combustion of the combustibles. A sliding frame 4 is provided at the bottom of the body 1. Inside the sliding frame 4, an ash collecting box 5 is slidably connected back and forth. The top of the ash collecting box 5 communicates with the bottom of the body 1.

[0034] The inverted trapezoid shape causes all the ashes falling from the combustion plate 21 to fall into the ash collecting box 5 at the bottom, and no dust will accumulate inside the body 1.

[0035] A placement rack 6 is provided at the bottom on the left side of the body 1, and a fire tong 7 is placed on the top of the placement rack 6.

[0036] A rotating handle 35 for driving its rotation is provided at the front end of the bidirectional threaded lead screw 32.

[0037] A blower 8 is connected to the back of the body 1. The blower 8 is in a downward inclined shape, and two support feet 9 are provided on both sides at the bottom of the body 1.

[0038] The external air is blown into the interior of the machine body 1 by the blower 8 to form good air circulation, enabling the combustibles to burn fully.

[0039] The working principle of a combustion test device for a steel structure fireproof coating provided by the present utility model is as follows:

[0040] First step: During use, the three test steel plates 23 coated with the fireproof coating are placed into the interior of the machine body 1 through the opening on the left side of the machine body 1 by the support frame 22. Rotate the rotating handle 35. The rotation of the rotating handle 35 drives the rotation of the bidirectional threaded lead screw 32, and then drives the backward movement of the two threaded sleeves 33, so as to drive the backward movement of the furnace mouth cover 34. Then, the heated combustibles are placed on the combustion plate 21, and the furnace mouth cover 34 is sealed by rotating the rotating handle 35 in the reverse direction.

[0041] Second step: After the test is completed, the combustibles on the top of the combustion plate 21 are taken out and extinguished by the fire tongs 7, and then the ash box 5 is pulled to properly handle the ash inside it.

[0042] Compared with the related technology, a combustion test device for a steel structure fireproof coating provided by the present utility model has the following beneficial effects:

[0043] The external air is blown into the interior of the machine body 1 by the blower 8 to form good air circulation, enabling the combustibles to burn fully. The rotation of the rotating handle 35 drives the rotation of the bidirectional threaded lead screw 32, and then drives the forward and backward movement of the two threaded sleeves 33, so as to drive the forward and backward movement of the furnace mouth cover 34, which is convenient for moving the high-temperature furnace mouth cover 34 when adding combustibles during the combustion process.

[0044] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A combustion test device for fire retardant coatings for steel structures, characterized in that: include: A machine body (1), wherein a testing component (2) is arranged on the inner side of the machine body (1), and a moving component (3) is arranged on the right side of the machine body (1); The test assembly (2) comprises a combustion plate (21) arranged on the inner side of the body (1), the combustion plate (21) being in the form of a transparent mesh, a support frame (22) being arranged on the top of the inner wall of the body (1), three test steel plates (23) being arranged on the top of the support frame (22) so as to be slidable left and right, the left sides of the three test steel plates (23) passing through the inner wall of the body (1) and extending to the outside of the body (1), and a heat-insulating handle (24) being arranged on the left sides of the three test steel plates (23); The moving assembly (3) comprises a rotating frame (31) arranged in a front and rear mirror-image arrangement on the right side of the machine body (1); a bidirectional threaded screw (32) is rotatably arranged on the inner side of the rotating frame (31); two threaded sleeves (33) that can move forward and backward are threadedly connected to the circumferential side surface of the bidirectional threaded screw (32); a furnace cover (34) is arranged on the top of the two threaded sleeves (33); and the left side of the furnace cover (34) is slidably connected to the right side of the machine body (1).

2. A combustion test device for fire retardant coating for steel structure according to claim 1, characterized in that: An observation window (25) is provided on the front of the machine body (1), and a chimney (26) for exhausting smoke is provided on the top of the machine body (1).

3. A combustion test device for fire retardant coating for steel structure according to claim 1, characterized in that: The bottom of the inner wall of the machine body (1) is in an inverted trapezoidal shape, so as to facilitate the falling of ashes after the combustion of the combustible material. A sliding frame (4) is provided at the bottom of the machine body (1). An ash box (5) is connected to the inner side of the sliding frame (4) so ​​as to be slidable forward and backward. The top of the ash box (5) is connected to the bottom of the machine body (1).

4. A combustion test device for fire retardant coating for steel structure according to claim 1, characterized in that: A placement rack (6) is provided at the bottom of the left side of the machine body (1), and a fire tongs (7) is placed on the top of the placement rack (6).

5. A combustion test device for fire retardant coating for steel structure according to claim 1, characterized in that: The front end of the bidirectional threaded screw (32) is provided with a rotating handle (35) for driving the screw to rotate.

6. A combustion test device for fire retardant coating for steel structure according to claim 1, characterized in that: The back side of the machine body (1) is connected to a blower (8), the blower (8) is tilted downward, and two supporting legs (9) are arranged on both sides of the bottom of the machine body (1).

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