Rotary opening and closing type electric heating temperature rise test device for building component

Abstract

The utility model discloses a rotary opening and closing type building component electric heating temperature rise test device, which comprises a test furnace and a bearing platform, and is characterized in that the test furnace comprises box bodies arranged in pairs; one side of the box body is hinged, and the other side of the box body is fastened through a fastener; the box body is filled with a fireproof heat insulation material layer; when the box body is in a buckled state, the fire-resistant and heat-insulating material layer encloses a containing cavity; the bearing platform is accommodated in a through hole formed in the bottom surface of the box body; the top face of the bearing platform is flush with the containing cavity. A gap is reserved between the periphery of the bearing platform and the through hole; a building test component is placed on the top surface of the bearing platform; and a plurality of sheathed thermocouples and a plurality of silicon carbide rods are arranged on the inner wall of the accommodating cavity. According to the device, the sheathed thermocouple, the silicon carbide rod and the building component for the test in the box body of the test furnace are convenient to disassemble and assemble. The test block support can be placed on the bearing platform of the test furnace base besides directly placing the building component, and then the test blocks are placed on the test block support in multiple layers, so that the test efficiency is improved, and the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building component testing, in particular to a rotary opening and closing type building component electric heating temperature test device. BACKGROUND

[0002] The mechanical performance of a building structure after a fire determines the key factors of whether the structure can continue to be used after the fire and whether reinforcement and repair are needed. At present, the mechanical performance of a building structure after a fire is researched and tested mainly by conducting a temperature test on a small building component, and then conducting a stress loading test on the building component after the temperature test. The temperature test condition is usually conducted according to the provisions in the Building Component Fire Resistance Test Method Part 1: General Requirements GB / T 9978.1-2008, and the existing technology can only use an open fire oil or gas test furnace for heating operation. However, the oil or gas test furnace needs to be provided with an air supply system and a smoke exhaust system during use, and has high cost, complex structure, and high test difficulty and cost. Especially for the temperature test of a concrete component after constant high temperature, the temperature inside the component needs to be developed for more than 5-10 hours at a constant high temperature, so that the whole section reaches the predetermined temperature. The energy consumption of the oil or gas test furnace is large, and it is not convenient to carry out pre-research and large-scale test research. Therefore, there is an urgent need for a building component electric heating temperature simulation test device which is convenient for placing a building component.

[0003] The existing oven and other constant temperature long-time heating devices are difficult to meet the rapid detection of large quantities and large sizes of building components due to the limited size of the inner cavity.

[0004] The information disclosed in the background section is only intended to increase the understanding of the general background of the application and should not be considered as admitting or implying that the information constitutes prior art in any form. CONTENT OF THE INVENTION

[0005] The application provides a rotary opening and closing type building component electric heating temperature test device, which has simple structure, low test investment cost, high test efficiency and accurate test results.

[0006] The application provides a rotary opening and closing type building component electric heating temperature test device, which comprises a test furnace, a bearing platform and the test furnace, wherein the test furnace comprises a pair of box bodies, one side of the box body is hinged, and the other side is buckled through a buckling piece; a layer of fireproof and heat insulation material is arranged in the box body; when the box bodies are buckled, the layer of fireproof and heat insulation material surrounds a containing cavity; the bearing platform is arranged in a through hole formed in the bottom surface of the box body; the top surface of the bearing platform is flush with the containing cavity; a gap is reserved between the peripheral edge of the bearing platform and the through hole; a building test component is placed on the top surface of the bearing platform; a plurality of armored thermocouples and a plurality of silicon-carbon rods are arranged on the inner wall of the containing cavity.

[0007] Preferably, the refractory insulation material layer has a thickness of 10 cm or more; the gap between the periphery of the platform and the accommodating cavity is 3-10 mm.

[0008] Preferably, the vertical rod and the plurality of rollers are provided; the rollers are respectively installed on the bottom surface of the test furnace; the vertical rod is arranged on the hinged edge of the box body and is respectively hinged to the two side box bodies.

[0009] Preferably, the heat insulation handles and the lock catches are arranged on the outer wall of the opening and closing side of the box body.

[0010] Preferably, the silicon-carbon rod comprises: long silicon-carbon rods and short silicon-carbon rods; the long silicon-carbon rods are symmetrically arranged in pairs on the side wall of the accommodating cavity; and the short silicon-carbon rods are arranged on the lower side wall of the accommodating cavity.

[0011] Preferably, the notch is arranged on the bottom surface of the box body in alignment, and the notch forms a through hole when the box body is closed.

[0012] Preferably, the cable through hole is arranged on the top surface of the box body; the cable is arranged in the cable through hole; and the diameter of the cable through hole is 5-10 mm.

[0013] Preferably, the bottom seat, the vertical rod and the platform are arranged on the bottom seat.

[0014] Preferably, the test block support is arranged on the top surface of the platform.

[0015] Preferably, the temperature control cabinet is electrically connected with the armored thermocouple and the silicon-carbon rod; the temperature control cabinet comprises: a power supply, a temperature controller, a start button, a stop button, a working indicator light and an alarm indicator light; the power supply is electrically connected with the silicon-carbon rod; the temperature controller is electrically connected with the armored thermocouple; and the start button, the stop button, the working indicator light and the alarm indicator light are electrically connected with the temperature controller.

[0016] The beneficial effects that can be produced by the present application include:

[0017] 1) The rotary opening and closing type building component electric heating temperature test device provided by the present application comprises two test furnace half-box bodies which are hinged on one side and can be opened and closed on the other side, facilitating the disassembly and assembly of the armored thermocouple, the silicon-carbon rod and the test building component in the test furnace box body. In addition to directly placing the building component on the platform of the test furnace base, the test block support can also be placed on the platform, and the test blocks are placed on the test block support in multiple layers, thereby improving the test efficiency and reducing energy consumption. There is no open flame, and the experiment can be carried out without the need to install a ventilation system and a smoke exhaust system, thereby reducing the experimental cost investment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The rotary opening and closing type building component electric heating temperature test device provided by at least one embodiment of the present application is shown in the schematic diagram;

[0019] Figure 2A temperature control cabinet schematic diagram in at least one embodiment provided in the present application;

[0020] Figure 3 A rotating opening and closing type building component electric heating temperature test device buckling state schematic diagram in at least one embodiment provided in the present application;

[0021] Figure 4 A rotating opening and closing type building component electric heating temperature test device opening state schematic diagram in at least one embodiment provided in the present application;

[0022] Figure 5 A test furnace support schematic diagram in at least one embodiment provided in the present application;

[0023] Figure 6 A rotating opening and closing type building component electric heating temperature test device opening state bearing platform position schematic diagram in at least one embodiment provided in the present application;

[0024] Figure 7 A rotating opening and closing type building component electric heating temperature test device opening state large size test piece placement state schematic diagram in at least one embodiment provided in the present application;

[0025] Figure 8 A rotating opening and closing type building component electric heating temperature test device opening state test block support schematic diagram in at least one embodiment provided in the present application;

[0026] Figure 9 A test block support schematic diagram in at least one embodiment provided in the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0029] The controller used in the embodiment is a prior structure, and the control circuit can be realized by simple programming of those skilled in the art, which is common knowledge in the art, and only the use is not transformed, so the control mode and circuit connection are not described in detail.

[0030] The technical means not described in detail in the application and not used to solve the technical problems of the application are set according to the common knowledge in the art, and various common knowledge setting modes can be realized.

[0031] Referring to Figures 1-9 The rotating opening and closing type building component electric heating temperature test device provided by the application comprises a temperature control cabinet 1, a test furnace box body 2 and a test furnace support 3.

[0032] A temperature controller 11 can be installed in the temperature control cabinet 1, and the temperature controller 11 is electrically connected with a silicon-carbon rod 24 and an armored thermocouple 25 in the test furnace box body 2. The difference between the measured temperature in the furnace fed back by the armored thermocouple 25 and the predetermined control temperature is used to control the heating power of the armored thermocouple 25, so as to realize the temperature regulation and control in the test furnace.

[0033] The temperature control cabinet 1 is also provided with a start button 12, a stop button 13, a working indicator lamp 14 and an alarm indicator lamp 15. The start button 12, the stop button 13, the working indicator lamp 14 and the alarm indicator lamp 15 are electrically connected with the temperature controller 11. When the start button 12 is pressed, the temperature controller 11 in the test device is started, the armored thermocouple 25 is started through the temperature controller 11, the working indicator lamp 14 is turned on, and the furnace starts to heat. After the test is completed, the stop button 13 is pressed, the working indicator lamp 14 is turned off, and the test furnace stops heating. If an abnormality occurs during the heating process, such as that the predetermined control temperature and the measured temperature in the furnace exceed the preset temperature too much, the alarm indicator lamp 15 is turned on, and the test device stops working, and the working indicator lamp 14 is turned off.

[0034] The test furnace box body 2 comprises: a pair of test furnace half-box bodies 21 arranged in a buckling manner. Each test furnace half-box body 21 comprises: a furnace body shell 22, the furnace body shell 22 is filled with refractory insulation material 23, the furnace body shell 22 serves as the frame of the test furnace half-box body and is made of steel, and plays a supporting and maintaining role for the test furnace half-box body. The test furnace box body 2 is connected with the temperature control cabinet 1 through an electric cable. The refractory insulation material 23 in the inner cavity of the furnace body shell 22 is recessed on the opposite side wall of the shell, forming a containing cavity for containing the experimental building component; the recessed shape can be designed according to the shape of the experimental component, such as a semicircle, a regular hexagon or a regular octagon.

[0035] When the furnace body shells 22 arranged in pairs on both sides are buckled and closed, the containing cavities on both sides are partially aligned, and the recessed parts form a whole cylinder, a regular hexahedron or a regular octahedron.

[0036] The furnace body shell 22 is filled with refractory insulation material 23 to maintain the heat preservation effect in the test furnace and ensure that the temperature of the furnace body shell 22 is not higher than 50 degrees Celsius after 5 hours of testing. The thickness of the refractory insulation material 23 is not less than 10 cm. The test furnace half box 21 is provided with a semicircular notch for the passage of the bearing platform 33. When the test furnace box 2 is closed, the two semicircular notches merge into a circular notch, and the bearing platform 33 is placed on the circular notch. The bearing platform 33 is flush and close to the bottom surface of the closed test furnace box 2, but not connected. The bearing platform 33 is movably arranged in the cylindrical through slot opened on the bottom surface of the test furnace box 2. A gap of 3-10 mm is left between the bearing platform 33 and the receiving cavity to prevent the bearing platform 33 from colliding or interfering with the test furnace box 2 when the test furnace half box 21 is closed or opened. Before the test starts, the gap needs to be sealed with thermal insulation cotton to improve the heating efficiency and avoid energy waste.

[0037] The refractory insulation material 23 is arranged on the relative inner wall to form a receiving cavity, which is the space for containing experimental components in the furnace. A silicon-carbon rod 24 is arranged on the inner wall of the furnace space and electrically connected to the temperature controller 11 and power supply in the temperature control cabinet 1. The silicon-carbon rod 24 is a heating component that provides heat by electric energy from the power supply in the temperature control cabinet 1 to heat the furnace. Since the hot air in the furnace flows upward, to ensure uniform temperature in the upper and lower parts of the furnace, the silicon-carbon rod 24 includes a long silicon-carbon rod 241 arranged along the entire height of the space on the inner wall of the receiving cavity and a short silicon-carbon rod 242 arranged only on the lower inner wall of the receiving cavity. In this application, long and short are relative expressions, with the long one being longer than the short one.

[0038] At the same time, armored thermocouples 25 are arranged on the upper, middle and lower parts of the inner wall of the receiving cavity to monitor the temperature at different heights in the furnace in real time and feed back to the temperature controller 11.

[0039] A plurality of rollers 26 are arranged on the bottom surface of the furnace body shell 22 to facilitate the pushing of the two sides of the test furnace box 2 when opening and closing the test furnace box 2.

[0040] The plane angle of the test furnace box 2 in the fully open state is not less than 120°, which facilitates the installation of test specimens and preparation of tests by the operator. The side edges of the two buckled and opened test furnace half boxes 21 are hinged by hinges.

[0041] Specifically, one side (fixed side) of the two test furnace half boxes 21 is connected by a plurality of hinges 27, and the other side (movable side) is provided with a heat insulation handle 28 and a lock 29. This facilitates the pushing of the test furnace half box 21 and the locking of the two sides according to the experimental needs.

[0042] A plurality of hinges 27 are fixedly installed on the test furnace base vertical rod 32, the test furnace base vertical rod 32 serves as the fixed shaft when the two test furnace half-boxes 21 rotate, and ensures that the two test furnace half-boxes 21 rotate around the fixed shaft. The heat insulation handle 28 is used to open or close the test furnace box 2. The lock 29 is used to lock the two test furnace half-boxes 21 after the test furnace box 2 is closed.

[0043] The test furnace half-box 21 is provided with a semicircular groove with a radius of 5-10 mm for the test specimen thermocouple 7 to pass through, and when the test furnace box 2 is closed, the two semicircular grooves merge into a circular through hole, and the space in the circular through hole is used to pass through the test specimen thermocouple 7.

[0044] Specifically, the test furnace support 3 is made of steel and includes a base 31, a vertical rod 32, and a bearing platform 33. The base 31 serves as the bottom platform of the test furnace box 2, provides support for the test furnace box 2, and provides a rolling plane for the rollers 26 below. The vertical rod 32 is fixed to the base 31 and serves as the fixed shaft when the two test furnace half-boxes 21 rotate. It is connected to the two test furnace half-boxes 21 through the hinges 27 and ensures that the fixed side of the two test furnace half-boxes 21 does not move when they rotate.

[0045] The bearing platform 33 is cylindrical and is fixed to the base 31 and is used to place the test building component 4 or test block support 5. When the two test furnace half-boxes 21 are closed, the lower gap of the test furnace half-box 21 exactly wraps around the bearing platform 33, and the top surface of the bearing platform 33 is higher than the bottom of the inner space of the furnace.

[0046] For building components 4 with a height exceeding half of the inner space of the furnace, the building components 4 can be directly placed on the bearing platform 33 for testing, and the test specimen thermocouple 7 is placed inside the building component 4, and the cable connected to the power supply and controller is passed out of the test furnace box 2 through the small circular gap at the top of the test furnace half-box 21 and connected to the temperature control cabinet 1 to monitor the temperature change inside the building component 4 during the test and heat the building component 4.

[0047] For small building components such as test blocks, the test block support 5 can be placed on the bearing platform 33 first, and then the small building components such as test blocks 6 can be placed on the test block support 5.

[0048] The test block support 5 is welded from steel bars with a diameter of less than 10 mm or steel plates with a thickness of less than 6 mm, and the overall frame shape is cylindrical with a diameter equal to or slightly smaller than the diameter of the bearing platform 33. The test block support 5 can be divided into 2-5 layers, and each layer is provided with a support steel plate 51 at the bottom to support the test block 6. The support steel plate 51 can be a solid steel plate or a hollow steel plate. When the test block 6 is small, multiple test blocks 6 can be placed in each layer to further increase the number of test blocks 6 per test and improve test efficiency.

[0049] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rotating opening and closing type building component electric heating temperature test device, characterized by, The utility model relates to a building test component test device, including: The test furnace, the bearing platform, the test furnace includes: the box body that sets up in pairs, one side of box body is hinged, and the other side edge is buckled through the buckling piece, the box body is filled with the refractory heat insulating material layer, when the box body is buckled, the refractory heat insulating material layer surrounds the accommodating cavity, The bearing platform is accommodated in the through hole opened in the bottom surface of the box body, and the top surface of the bearing platform is flush with the accommodating cavity, The bearing platform peripheral edge is left with a gap from the through hole, and the building test component is placed on the top surface of the bearing platform, A plurality of armored thermocouples and a plurality of silicon-carbon rods are arranged on the inner wall of the accommodating cavity.

2. The rotating opening and closing type building component electric heating temperature test apparatus according to claim 1, wherein The thickness of the refractory heat insulating material layer is greater than or equal to 10 cm, and the gap between the bearing platform peripheral edge and the accommodating cavity is 3-10 mm.

3. The rotating opening and closing type building component electric heating temperature test apparatus according to claim 1, wherein It includes a vertical rod and a plurality of rollers, the rollers are respectively installed on the bottom surface of the test furnace, and the vertical rod is arranged on the hinged edge of the box body and is respectively hinged with the two box bodies.

4. The rotating opening and closing type building component electric heating temperature test apparatus according to claim 1, wherein Heat insulation handles and lock buckles are arranged on the outer wall of the opening and closing side of the box body at intervals.

5. The rotating open-close type building component electric heating temperature test apparatus according to claim 1, wherein The silicon-carbon rod includes a long silicon-carbon rod and a short silicon-carbon rod, the long silicon-carbon rod is symmetrically arranged in pairs to cover the side wall of the accommodating cavity, and the short silicon-carbon rod is arranged on the lower side wall in the accommodating cavity.

6. The electric heating temperature test apparatus for a rotary opening and closing type building component according to claim 1, wherein Notches are arranged in alignment on the bottom surface of the box body, and the notches surround the through hole when the box body is buckled.

7. The electric heating temperature test apparatus for a rotary opening and closing type building component according to claim 1, wherein A cable through hole is arranged on the top surface of the box body, a cable is arranged in the cable through hole, and the diameter of the cable through hole is 5-10 mm.

8. The electric heating temperature test apparatus for a rotary opening and closing type building component according to claim 1, wherein It includes: A base, a vertical rod and a bearing platform are installed on the base.

9. The electric heating temperature test apparatus for a rotary opening and closing type building component according to claim 1, wherein A test block support is arranged on the top surface of the bearing platform.

10. The rotating open-close type building component electric heating temperature test apparatus according to claim 1, wherein It includes: A temperature control cabinet, The temperature control cabinet is electrically connected with the armored thermocouple and the silicon-carbon rod, The temperature control cabinet includes a power supply, a temperature controller, a start button, a stop button, a working indicator light and an alarm indicator light, the power supply is electrically connected with the silicon-carbon rod, the temperature controller is electrically connected with the armored thermocouple, and the start button, the stop button, the working indicator light and the alarm indicator light are respectively electrically connected with the temperature controller.

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