Device for testing fire resistance of heat insulation system structure

Abstract

The utility model provides a device for testing the fire resistance of a heat insulation system structure, the heat insulation system structure covers the surface of a profile, the device comprises a furnace body, a furnace cover, an air outlet, a heater and a probe, the furnace body forms a furnace chamber, a furnace mouth located at the top of the furnace chamber and a furnace bottom located at the bottom of the furnace chamber, and the furnace cover is arranged at the furnace mouth and covers the furnace mouth. The section bar is vertically arranged at the furnace bottom, the probe is arranged on the surface of the section bar, and the heater penetrates through the furnace body to supply heat into the furnace cavity. According to the utility model, the furnace mouth and the furnace cover are arranged at the top of the furnace chamber, so that the section bar can be hoisted from the furnace mouth, the furnace cover is used for sealing the furnace mouth, the heater is used for forming a high-temperature environment in the furnace chamber, the probe is used for collecting the surface temperature of the section bar in real time, the air outlet is used for discharging flue gas in the furnace chamber, and the whole detection process is convenient to operate and accurate in test data.

Description

Technical Field

[0001] This utility model relates to the field of engineering structure testing technology, and in particular to a testing device for the fire resistance performance of an insulation system structure. Background Technology

[0002] Fire resistance is a crucial parameter for evaluating building insulation systems. Generally, insulation systems such as foam glass or rock wool are used to encase steel structural members, providing fire resistance and thus improving their fire resistance. Currently, there is no precise and convenient testing equipment for assessing the fire resistance of insulation systems encasing steel structures. Utility Model Content

[0003] To address at least one of the aforementioned problems, this invention provides a testing device for the fire resistance performance of an insulation system structure.

[0004] Specifically, this utility model is achieved through the following technical solution:

[0005] This utility model provides a test device for the fire resistance performance of an insulation system structure. The insulation system structure is covered on the surface of a profile. The test device includes a furnace body, a furnace cover, an exhaust vent, a heater, and a probe. The furnace body forms a furnace cavity, a furnace opening at the top of the furnace cavity, and a furnace bottom at the bottom of the furnace cavity. The furnace cover is set at the furnace opening and covers the furnace opening. The profile is vertically set at the furnace bottom. The probe is arranged on the surface of the profile, and the heater passes through the furnace body to supply heat to the furnace cavity.

[0006] In some embodiments, an exhaust vent is formed on the furnace cover to connect the inside and outside of the furnace cavity.

[0007] In some embodiments, a tooling is provided at the furnace bottom, and the profile is vertically positioned at the furnace bottom by means of the tooling.

[0008] In some embodiments, an opening is formed on the furnace body that connects the inside and outside of the furnace cavity, and the heater supplies heat to the furnace cavity through the opening.

[0009] In some embodiments, the probe is provided with a support, a conductive part, and a detection part. The support is connected to the furnace body, the detection part is located at the front end of the support and is mounted on the surface of the profile through the support, and the detection part is electrically connected to a controller outside the furnace body through the conductive part.

[0010] In some embodiments, the conductive portion is covered with a flame-retardant material.

[0011] In some embodiments, the probe is a thermocouple.

[0012] In some embodiments, the multiple probes are arranged on the surface of the profile in a uniformly distributed manner along the cross-sectional shape of the profile.

[0013] In some embodiments, the furnace body is configured to be formed by masonry.

[0014] In some embodiments, the furnace cover is configured to be assembled from at least two cover pieces.

[0015] According to the embodiments of this utility model, by setting a furnace opening and a furnace cover at the top of the furnace cavity, the profile can be hoisted from the furnace opening, the furnace opening can be sealed with the furnace cover, a high-temperature environment can be formed in the furnace cavity using a heater, the surface temperature of the profile can be collected in real time using a probe, and the flue gas in the furnace cavity can be discharged using an air outlet. The entire testing process is convenient to operate and the test data is accurate.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a cross-sectional view of a test device for the fire resistance performance of an insulation system structure according to an embodiment of this utility model;

[0019] Figure 2 This is a cross-sectional view of a test device for the fire resistance performance of an insulation system structure according to another embodiment of this utility model;

[0020] Figure 3 This is a cross-sectional view of the profile covered by the thermal insulation system structure in one embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the profile covered by the insulation system structure in another embodiment of the present invention.

[0022] Figure label:

[0023] 01: Profile; 02: Insulation system structure; 1: Furnace body; 2: Furnace cover; 3: Exhaust vent; 4: Probe; 41: Support; 42: Conductor; 43: Detection unit; 5: Opening; 6: Heater. Detailed Implementation

[0024] The present invention will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present invention, and are not intended to imply any limitation on the scope of the present invention.

[0025] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first," "second," etc., may refer to different or the same objects; the term "setup" is not limited to direct or indirect connections, nor to specific connection methods. Other explicit and implicit definitions may also be included below.

[0026] Specific numerical values ​​or ranges may be mentioned in the following description. It should be understood that these values ​​and ranges are merely exemplary and may be helpful in putting the ideas of this invention into practice. However, the description of these examples is not intended to limit the scope of this invention in any way. These values ​​or ranges may be set differently depending on the specific application scenario and requirements.

[0027] As mentioned above, there is currently no accurate and convenient testing device in the prior art for testing the fire resistance of steel-clad insulation systems. The testing device for the fire resistance of insulation systems proposed in the embodiments of this utility model at least partially solves the above-mentioned problem. The following will refer to... Figures 1-4 This invention describes the structure and working principle of a test apparatus for the fire resistance performance of an insulation system structure according to an exemplary embodiment of the present invention. The test apparatus for the fire resistance performance of an insulation system structure according to this invention mainly includes a furnace body 1, a furnace cover 2, an exhaust vent 3, a probe 4, and a heater 6. The furnace body 1 forms a furnace cavity for placing a profile 01. The furnace opening at the top of the furnace cavity is covered by the furnace cover 2, facilitating the hoisting of the profile 01 through the furnace opening and sealing the furnace cavity during the test. The furnace bottom at the bottom of the furnace cavity is used to place the profile 01 during the test. The heater 6 provides heat to the furnace cavity during the test, thereby simulating the temperature of the furnace cavity in a fire environment. The exhaust vent 3 discharges the exhaust gas generated by combustion in the furnace cavity during the test. The probe 4 collects the real-time temperature of the surface of the profile 01 during the test.

[0028] The exhaust vent 3 can be located on the side wall of the furnace body 1, the furnace bottom, or the furnace cover 2. In one embodiment, such as... Figure 1 As shown, an exhaust vent 3 is provided at the bottom of the furnace to discharge combustion exhaust gases from the furnace chamber. In another embodiment, as... Figure 2As shown, an exhaust vent 3 can be provided on the furnace cover 2. This arrangement allows for a larger area at the furnace bottom for placing the profile 01, ensuring greater stability of the profile 01 during testing. For example, the furnace cover 2 can be configured as a split structure, with each split section forming a partial exhaust vent 3. When the split sections are joined together to form a complete furnace cover 2, the exhaust vent 3 is formed. The split design also makes opening and closing the furnace cover more convenient. In another example, the complete exhaust vent 3 can be formed only on one of the split cover sections.

[0029] In one embodiment, the heater 6 can be directly installed inside the furnace cavity, and connected to an external controller via a wire penetrating the wall of the furnace body 1. For example, a resistance heater can be selected as the heater. In another embodiment, to prevent the heater from being damaged by the high temperature inside the furnace cavity, such as... Figure 1 and Figure 2 As shown, the heating element is placed outside the furnace cavity, and an opening 5 is formed on the furnace body 1 to connect the inside and outside of the furnace cavity. The nozzle of the heating element supplies hot air into the furnace cavity through the opening 5. For example, there are multiple heating elements, which can be evenly arranged in a ring around the outer perimeter of the furnace cavity, or further arranged in two or three rings along the vertical direction.

[0030] In one embodiment, the furnace body 1 can be cylindrical or quadrilateral, and the sidewalls and bottom wall of the furnace body 1 are formed by stone masonry, so that the furnace cavity temperature will not dissipate through the sidewalls of the furnace body 1. For example, fireproof bricks can be selected as the masonry material.

[0031] In one embodiment, the probe 4 is mounted on the side wall of the furnace body 1. The probe 4 may include a support 41, a conductive part 42, and a detection part 43. The support 41 is used to fix the probe 43 to the side wall of the furnace body 1 and to support the detection part 43. The detection part 43 is located at the foremost end of the probe 4. The detection part 43 penetrates the insulation system structure 02 and contacts the surface of the profile 01, thereby accurately collecting the surface temperature of the profile 01. The conductive part 42 is used to electrically connect the detection part 43 to a controller outside the furnace cavity. For example, the probe 4 is a thermocouple. In another embodiment, the conductive part 42 may be a cable. To avoid the cable being affected by the high temperature environment inside the furnace cavity, thereby reducing the detection accuracy of the probe 4, a flame-retardant material is wrapped around the cable. For example, the flame-retardant material may be ceramic fiber felt.

[0032] The test device of this utility model embodiment can conveniently hoist the profile 01 covering the heat insulation system structure 02 through the furnace opening and place it vertically at the bottom of the furnace. For example, the profile 01 can be placed directly in the furnace bottom area, or the profile 01 can be stably fixed at the furnace bottom by additional tooling.

[0033] To ensure comprehensive data collection on the surface temperature changes of profile 01, multiple probes 4 are evenly distributed across the cross-sectional shape of profile 01. In one embodiment, such as... Figure 3As shown, when testing the I-beam, the insulation system structure 02 tightly covers the surface of the I-beam. The detection part 43 of the probe 4 contacts the I-beam at three detection points a, b, and c. The heat transfer paths of the I-beam cross-sectional shape are equal between the three detection points a, b, and c, therefore it can be considered that the surface temperature of the I-beam is fully collected. In another embodiment, as... Figure 4 As shown, when testing the square steel, the insulation system structure 02 covers the outer and inner surfaces of the square steel. The detection part 43 of the probe 4 contacts the square steel at three detection points a, b, and c. The heat transfer paths of the square steel cross-sections between the three detection points a, b, and c are equal, therefore it can be considered that the surface temperature of the square steel is fully collected. In other embodiments, the cross-section of the profile 01 can also be a commonly used profile such as a circle, a "C" shape, or a "T" shape.

[0034] The test apparatus of this utility model simulates a fire environment by creating a high-temperature environment in the furnace cavity. By collecting temperature changes on the surface of the profile, the fire resistance performance of the insulation system structure covering the profile surface can be evaluated.

[0035] The description of the embodiments herein, including any references to directions and orientations, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An apparatus for testing the fire resistance of an insulating system structure coated on the surface of a profile, characterized in that, The test device comprises a furnace body, a furnace cover, an exhaust port, a heating device and a probe, the furnace body is formed with a furnace cavity, a furnace opening at the top of the furnace cavity and a furnace bottom at the bottom of the furnace cavity, the furnace cover is arranged at the furnace opening and covers the furnace opening, and the profile is vertically arranged on the furnace bottom, wherein the probe is arranged on the surface of the profile, and the heating device supplies heat into the furnace cavity through the furnace body.

2. The test apparatus for the fire resistance of thermal insulation system structures according to claim 1, characterized in that, An exhaust port is formed on the furnace cover and communicates the inside and outside of the furnace cavity.

3. The test apparatus for the fire resistance of thermal insulation system structures according to claim 1, characterized in that, The furnace bottom is provided with a tool, and the profile is vertically arranged on the furnace bottom through the tool.

4. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, An opening is formed on the furnace body and communicates the inside and outside of the furnace cavity, and the heating device supplies heat into the furnace cavity through the opening.

5. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, The probe is provided with a supporting part, a conducting part and a detection part, the supporting part is connected with the furnace body, the detection part is arranged at the front end of the supporting part, the detection part is arranged on the surface of the profile through the supporting part, and the detection part is electrically connected with a controller outside the furnace body through the conducting part.

6. The test apparatus for the fire resistance of thermal insulation system structures according to claim 5, characterized in that, The conducting part is coated with a flame-retardant material.

7. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, The probe is a thermocouple.

8. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, The arrangement positions of the plurality of probes on the surface of the profile are uniformly distributed along the cross-sectional shape of the profile.

9. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, The furnace body is formed by masonry.

10. The test apparatus for the fire resistance performance of thermal insulation system structures according to claim 1, characterized in that, The furnace cover is formed by splicing at least two cover bodies.

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