Device for testing fire resistance of rock wool board

Abstract

The utility model discloses a device for testing the fire resistance of a rock wool board, and relates to the technical field of refractory materials. The to-be-tested rock wool board is located at a furnace opening of the box-type heating furnace, one side, far away from the box-type heating furnace, of the to-be-tested rock wool board is fixedly connected with the mounting plate, the mounting plate is fixedly connected with the box-type heating furnace, the length of the mounting plate is larger than that of the to-be-tested rock wool board, and the width of the mounting plate is larger than that of the to-be-tested rock wool board; the heat preservation cotton wraps the outer side of the rock wool board to be tested, and the gap between the mounting plate and the furnace opening of the box type heating furnace is completely filled with the heat preservation cotton; according to the utility model, the rock wool board to be tested is heated by the box-type heating furnace, so that the process of a related fire resistance experiment can be simply simulated, whether the fire resistance of a product is qualified or not can be judged, the link of testing by a detection center for verification is omitted, the research and development time is saved, and the cost investment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of refractory materials technology, and in particular to a testing device for the refractory performance of rock wool boards. Background Technology

[0002] Rock wool boards need to meet the requirements of relevant fire resistance tests. However, fire resistance test furnaces are large and expensive, and no manufacturing companies have this equipment. Therefore, companies cannot verify whether their products meet the requirements internally and must send their products to testing centers for verification. This process consumes a lot of manpower, material resources, and financial resources, and takes too long. When developing such new products, the verification process will take up a lot of R&D time. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a testing device for the fire resistance performance of rock wool boards.

[0004] To solve the above technical problems, the technical solution of this utility model is as follows:

[0005] A testing device for the fire resistance performance of rock wool boards, comprising:

[0006] Box-type heating furnace;

[0007] The rock wool board to be tested is located at the furnace opening of the box-type heating furnace. The side of the rock wool board to be tested away from the box-type heating furnace is fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the box-type heating furnace. The length of the mounting plate is greater than the length of the rock wool board to be tested, and the width of the mounting plate is greater than the width of the rock wool board to be tested.

[0008] In addition, insulation cotton is wrapped around the outside of the rock wool board to be tested, and the gap between the mounting plate and the furnace opening of the box-type heating furnace is completely filled.

[0009] As a preferred embodiment of the testing device for the fire resistance performance of rock wool board of this utility model, the length of the rock wool board to be tested is greater than the length of the furnace opening of the box-type heating furnace.

[0010] As a preferred embodiment of the testing device for the fire resistance performance of rock wool board of this utility model, the mounting plate is a steel plate with a thickness of 4.5mm.

[0011] As a preferred embodiment of the testing device for the fire resistance performance of rock wool board of this utility model, a number of thermal resistors are fixedly installed on the side of the mounting plate away from the box-type heating furnace.

[0012] As a preferred embodiment of the testing device for the fire resistance performance of rock wool board of this utility model, a number of thermal resistors are evenly distributed on the mounting plate.

[0013] In a preferred embodiment of the testing device for the fire resistance performance of rock wool board of this utility model, the rock wool board to be tested is fixedly connected to the mounting plate by rivets.

[0014] As a preferred embodiment of the testing device for the fire resistance performance of the rock wool board of this utility model, the length and width of the furnace opening of the box-type heating furnace are both greater than or equal to 500mm.

[0015] As a preferred embodiment of the testing device for the fire resistance performance of the rock wool board of this utility model, the insulation cotton is ceramic cotton.

[0016] This utility model also provides a method for testing the fire resistance performance of rock wool boards, which includes a testing device for the fire resistance performance of rock wool boards based on any of the above-mentioned methods, comprising:

[0017] The rock wool board to be tested is fixed to the mounting plate with rivets;

[0018] The installation plate is used to move the rock wool board to be tested to the furnace opening of the box-type heating furnace, and the installation plate is fixedly connected to the box-type heating furnace.

[0019] The outer side of the rock wool board to be tested was wrapped with thermal insulation cotton, and the gap between the mounting plate and the furnace opening of the box-type heating furnace was completely filled.

[0020] Fix the thermal resistor to the side of the mounting plate away from the box-type heating furnace;

[0021] The control box-type heating furnace is heated to a predetermined temperature within a preset time. Then, the temperature inside the box-type heating furnace is controlled to remain within the preset temperature range. During the operation of the box-type heating furnace, the temperature of different areas of the heating plate is collected by a thermal resistor.

[0022] The beneficial effects of this utility model are:

[0023] (1) This utility model heats the rock wool board to be tested in a box-type heating furnace, which can simply simulate the process of relevant fire resistance test and make a judgment on whether the fire resistance performance of the product is qualified. It saves the testing of the testing center required for verification, saves R&D time, and reduces cost investment.

[0024] (2) This utility model can roughly test the fire resistance of new products, avoiding the need to send the product to the testing center and conduct actual tests to know the fire resistance of the product, reducing transportation and testing costs, and shortening the time for new product development. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of the testing device for the fire resistance performance of rock wool board provided by this utility model;

[0027] The components include: 1. Box-type heating furnace; 2. Insulation cotton; 3. Rock wool board to be tested; 4. Rivets; 5. Mounting plate; 6. Resistance temperature detector (RTD). Detailed Implementation

[0028] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the structure of the testing device for the fire resistance performance of rock wool board provided in this application embodiment. The device includes a box-type heating furnace 1, a rock wool board 3 to be tested, a mounting plate 5, and insulation cotton 2; wherein, the rock wool board 3 to be tested is fixedly connected to the mounting plate 5 and fixed to the furnace opening of the box-type heating furnace 1 by the mounting plate 5; the insulation cotton 2 covers the outside of the rock wool board 3 to prevent heat from escaping; the rock wool board 3 to be tested is heated by the box-type heating furnace 1 to simulate a fire resistance test.

[0030] Specifically, the box furnace 1 is used to simulate the natural gas furnace in the relevant fire resistance test requirements; in order to test the temperature rise of different areas of the rock wool board 3 to be tested, the furnace opening size of the box furnace 1 needs to be larger than that of the box furnace 1 in a normal laboratory; in this embodiment, the box furnace 1 adopts a muffle furnace, and the length and width of its furnace opening are both greater than or equal to 500mm.

[0031] Mounting plate 5 is made of flat steel plate with a thickness of 4.5mm; rivets 4 are welded onto the steel plate; one side of the rock wool board 3 to be tested is fixedly connected to the mounting plate 5 by the rivets 4; during testing, the mounting plate 5 moves the rock wool board 3 to be tested toward the furnace opening of the box-type heating furnace 1 until the side of the rock wool board 3 away from the mounting plate 5 abuts against the furnace opening of the box-type heating furnace 1; at this time, the distance between the mounting plate 5 and the furnace opening of the box-type heating furnace 1 is equal to the thickness of the rock wool board 3 to be tested; by fixing the mounting plate 5 to the box-type heating furnace 1, the position of the rock wool board 3 to be tested can be fixed.

[0032] It should be noted that the length of the mounting plate 5 is greater than the length of the rock wool board 3 to be tested, and the width of the mounting plate 5 is greater than the width of the rock wool board 3 to be tested.

[0033] Insulation cotton 2 is wrapped around the outside of the rock wool board 3 to be tested; the insulation cotton 2 tightly wraps around the rock wool board 3 to be tested and completely fills the gap between the mounting plate 5 and the furnace opening of the box-type heating furnace 1. See [link / reference]. Figure 1 This effectively prevents heat from overflowing from the box-type heating furnace 1.

[0034] In this embodiment, the insulation cotton 2 is ceramic cotton.

[0035] In addition, several thermal resistors 6 are installed on the unexposed side of the mounting plate 5, and these thermal resistors 6 are evenly distributed on the mounting plate 5. These thermal resistors 6 can measure the temperature at different locations on the mounting plate 5 during the fire resistance test.

[0036] In this embodiment, five thermal resistors are provided, one of which is located in the middle of the mounting plate 5, and the other four are located at the one-quarter and three-quarter positions of the two diagonals of the mounting plate, respectively; the thermal resistors 6 mentioned above are adhesive thermal resistors 6, and their installation positions can be adjusted according to experimental needs.

[0037] This application also provides a method for testing the fire resistance of rock wool boards, which specifically includes the following steps:

[0038] Step S101: Fix the rock wool board 3 to be tested onto the mounting plate 5 using rivets 4;

[0039] Step S102: Move the rock wool board 3 to be tested to the furnace opening of the box-type heating furnace 1 by using the mounting plate 5, and fix the mounting plate 5 to the box-type heating furnace 1.

[0040] Step S103: Wrap the outside of the rock wool board 3 to be tested with insulation cotton 2, and completely fill the gap between the mounting plate 5 and the furnace opening of the box-type heating furnace 1;

[0041] Step S104: Fix the thermal resistor 6 to the side of the mounting plate 5 away from the box-type furnace 1;

[0042] Step S105: Control the box-type heating furnace 1 to heat up to the predetermined temperature within a preset time, then control the temperature inside the box-type heating furnace 1 to be within the preset temperature range, and collect the temperature of different areas of the heating plate through the thermal resistor 6 during the operation of the box-type heating furnace 1.

[0043] Specifically, in this embodiment, the box-type heating furnace 1 is controlled to reach the temperature of the natural gas furnace required for the relevant fire resistance test within 7 minutes.

[0044] Therefore, the technical solution of this application heats the rock wool board 3 to be tested by a box-type heating furnace 1, which can simulate the process of relevant fire resistance test and make a judgment on whether the fire resistance performance of the product is qualified. This eliminates the need for testing by a testing center, saves R&D time, and reduces cost.

[0045] In addition to the above embodiments, this utility model may have other implementation methods; all technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A testing device for the fire resistance performance of rock wool board, characterized in that: include: Box-type heating furnace (1); The rock wool board (3) to be tested is located at the furnace opening of the box-type heating furnace (1). The side of the rock wool board (3) to be tested away from the box-type heating furnace (1) is fixedly connected to the mounting plate (5), and the mounting plate (5) is fixedly connected to the box-type heating furnace (1). The length of the mounting plate (5) is greater than the length of the rock wool board (3) to be tested, and the width of the mounting plate (5) is greater than the width of the rock wool board (3) to be tested. In addition, the insulation cotton (2) is wrapped around the outside of the rock wool board (3) to be tested, and completely fills the gap between the mounting plate (5) and the furnace opening of the box-type heating furnace (1); The mounting plate (5) is a steel plate, and the thickness of the steel plate is 4.5mm; Several thermal resistors (6) are fixedly installed on the side of the mounting plate (5) away from the box-type heating furnace (1); Several of the aforementioned thermal resistors (6) are evenly distributed on the mounting plate (5); The thermal resistor (6) is an adhesive type thermal resistor.

2. The testing device for the fire resistance performance of rock wool board according to claim 1, characterized in that: Five thermal resistors (6) are provided, one of which is located in the middle of the mounting plate (5), and the other four thermal resistors (6) are located at the quarter-point and three-quarter-point positions of the two diagonals of the mounting plate (5), respectively.

3. The testing device for the fire resistance performance of rock wool board according to claim 2, characterized in that: The length of the rock wool board (3) to be tested is greater than the length of the furnace opening of the box-type heating furnace (1).

4. The testing device for the fire resistance performance of rock wool board according to claim 3, characterized in that: The rock wool board (3) to be tested is fixedly connected to the mounting plate (5) by rivets (4).

5. The testing device for the fire resistance performance of rock wool board according to claim 4, characterized in that: The length and width of the furnace opening of the box-type heating furnace (1) are both greater than or equal to 500 mm.

6. The testing device for the fire resistance performance of rock wool board according to claim 5, characterized in that: The insulation cotton (2) is ceramic cotton.

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