Super-large L-shaped multifunctional fire-resistant test furnace

Abstract

The invention relates to an oversized L-shaped multifunctional fire-resistant test furnace, and belongs to the technical field of fire-resistant test furnaces, the oversized L-shaped multifunctional fire-resistant test furnace comprises a mounting seat, a transverse furnace body is mounted on the outer wall of the mounting seat, a vertical furnace body is fixedly connected to the outer wall of the transverse furnace body, and an overturning cover plate is rotatably connected to the top of the transverse furnace body; the top of the vertical furnace body is slidably connected with a smoke suction hood, and the outer wall of the smoke suction hood is fixedly connected with a connecting hose. According to the invention, when heat generated by the test furnace is recycled through the smoke suction cover, a first servo motor can be turned on according to the requirement of a conveying path to improve the convenient conversion effect of the conveying path of the recycled heat and improve the multi-path use effect of the recycled heat, so that the heat generated by the test furnace can be recycled through rotation of a worm; and the worm gear rotates to drive the adjusting cylinder to rotate through connection of the connecting shaft, so that the conversion port, the filter box and the connecting pipe are mutually switched, and the function of multi-path use of the recycled heat is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire-resistant test furnaces, and in particular to an extra-large L-shaped multifunctional furnace. Background Art

[0002] The vertical furnace for fire resistance test of building components is a special testing instrument used in the field of safety science and technology. It is mainly used to test the fire resistance characteristics of various structural components (such as walls, doors, windows, columns, rolling doors, fire smoke exhaust valves, etc.) under standard fire conditions. With the continuous improvement of building component product standards, the demand for testing large-size building components is growing.

[0003] In the prior art, there is a refractory material thermal conductivity detection test furnace with announcement number CN107860228B and a method for detecting the thermal conductivity of refractory materials using the test furnace. The refractory material thermal conductivity detection test furnace comprises a detection test furnace body, a detection test cavity is provided inside the detection test furnace body, the detection test cavity comprises a heating cavity arranged in the middle part and detection cavities arranged at both ends of the heating cavity, and the heating cavity and the detection cavity are interconnected; a plurality of heating grooves arranged in a matrix and connected to the heating cavity are arranged at the upper part of the heating cavity, and a heating rod body is arranged in the heating groove and extends into the heating cavity; infrared thermometers corresponding to the positions of the detection cavities are provided at both ends of the outer side of the detection test furnace body. The method for detecting the thermal conductivity of refractory materials using the test furnace of the invention is simple, has good data repeatability, greatly improves the detection accuracy of heterogeneous refractory materials, and the test results can accurately reflect the thermal conductivity of refractory materials.

[0004] However, although the existing fire-resistant test furnace can be used to conduct fire-resistant tests on test objects, the waste gas treatment brings a large load to the environmental protection equipment during daily use of the fire-resistant test furnace. In addition, when the waste gas is recovered, the conversion effect of the recovered heat transfer path is not high, which reduces the versatility of the use of the recovered heat. At the same time, when the fire-resistant test furnace is used, the adjustability of the working area in the fire-resistant test furnace is not high, which reduces the flexibility of adjusting and placing products of different sizes in the fire-resistant test furnace for testing, and does not meet people's use needs. For this reason, we propose an extra-large L-shaped multifunctional fire-resistant test furnace. Summary of the invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides an extra-large L-shaped multifunctional refractory test furnace to solve the problems mentioned in the above background technology that the waste gas treatment brings a large load to the environmental protection equipment, and when the waste gas is recovered and processed, the conversion effect of the recovered heat transfer path is not high and when the refractory test furnace is used, the adjustability of the working area in the refractory test furnace is not high.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0007] An extra-large L-shaped multifunctional fire-resistant test furnace, comprising a mounting seat, a transverse furnace body is mounted on the outer wall of the mounting seat, the outer wall of the transverse furnace body is fixedly connected to the vertical furnace body, the top of the transverse furnace body is rotatably connected to a flip cover, the top of the vertical furnace body is slidably connected to a smoke hood, the outer wall of the smoke hood is fixedly connected to a connecting hose, one end of the connecting hose is fixedly connected to a conversion box, the outer wall of the conversion box is fixedly connected to a filter box through a hose, the outer wall of the filter box is fixedly connected to a heat exchanger body through a hose, and the end of the heat exchanger body is fixedly connected to a delivery pipe fixedly connected to the bottom of the transverse furnace body;

[0008] The mounting base also includes:

[0009] A control box is fixedly connected to the top of the conversion box;

[0010] A conversion mechanism, arranged inside the conversion box, is used to conveniently convert the transport path of the recovered smoke;

[0011] An adjustment mechanism, arranged on the outer wall of the vertical furnace body, for adjusting the processing areas of the horizontal furnace body and the vertical furnace body;

[0012] The conversion mechanism includes an adjusting cylinder, a first servo motor is fixedly connected to the outer wall of the control box, a worm is fixedly connected to the output end of the first servo motor, a worm is meshed with a worm wheel on the outer wall of the worm, an indicator sign is fixedly connected to the rotation center of the worm wheel, a protractor located on one side of the indicator sign is fixedly connected to the top of the control box, a connecting shaft is fixedly connected to the rotation center of the worm wheel, one end of the connecting shaft is fixedly connected to the adjusting cylinder that fits the inner wall of the adjusting cylinder, a first conversion port is provided at the connection position between the outer wall of the adjusting cylinder and the filter box, a second conversion port is provided at the outer wall of the adjusting cylinder, and a third conversion port is provided at the connection position between the outer wall of the adjusting cylinder and the connecting hose, so that the conversion port, the filter box and the connecting pipe can be switched with each other, thereby improving the function of multi-path use of recovered heat.

[0013] Preferably, the inner walls of the transverse furnace body and the vertical furnace body are provided with refractory fiber blankets, the outer frames of the transverse furnace body and the vertical furnace body are made of Q235 steel plates as a whole, the bottoms of the furnaces of the transverse furnace body and the vertical furnace body are paved with refractory bricks, the smoke extraction hood adopts diffused smoke exhaust technology, the outer wall profile of the connecting part of the transverse furnace body and the vertical furnace body is L-shaped, and the provision of the refractory fiber blanket can achieve excellent thermal insulation performance, which is beneficial to ensure the rigidity and strength of the structure through the provision of the outer frames of the transverse furnace body and the vertical furnace body being made of Q235 steel plates as a whole, and to improve the thermal conductivity of the furnace body through the provision of refractory bricks, and also provides the necessary structural rigidity to meet the requirements of vertically installed ventilation ducts and horizontally installed component specimens.

[0014] Preferably, the indicator sign forms a rotating structure with the control box through the worm and the worm wheel, and the rotation center of the worm wheel and the rotation center of the indicator sign are arranged to overlap with each other, so as to facilitate observation of the rotation angle of the adjustment cylinder.

[0015] Preferably, the adjusting cylinder forms a rotating structure with the conversion box through the worm and the worm wheel, the rotation center of the worm wheel and the rotation center of the adjusting cylinder are arranged to overlap with each other, the outer wall contour of the adjusting cylinder and the inner wall contour of the conversion box are adapted to each other, and the overall material of the adjusting cylinder and the conversion box are both transparent materials, which plays a role in convenient switching of the recovered heat transfer path.

[0016] Preferably, the outer wall contour of the connecting part between the central axis of the first conversion port, the central axis of the second conversion port and the central axis of the third conversion port is T-shaped, a conveying cavity is opened on the inner wall of the regulating cylinder, the specific model of the heat exchanger body is JNQ, and a connecting pipe is fixedly connected to the outer wall of the conversion box. The setting of the flip cover plate can meet the requirements of vertically installed ventilation ducts and horizontally installed component specimens, and the diffuse smoke exhaust technology is adopted to ensure the uniformity of pressure distribution in the furnace, and realize centralized control of the exhaust temperature, effectively reducing the exhaust volume.

[0017] Preferably, a second servo motor is fixedly connected to the outer wall of the mounting seat, a first threaded rod is fixedly connected to the output end of the second servo motor, and a threaded sliding rod is threadedly connected to the outer wall of the mounting seat.

[0018] Preferably, the threaded slide rod forms a reciprocating sliding structure through the first threaded rod and the mounting seat, and the threaded slide rod and the smoke hood are integrally fixedly connected, which plays a role in driving the smoke hood to slide synchronously.

[0019] Preferably, the adjustment mechanism includes a rotating rod and a sealing plate, the side wall of the vertical furnace body is fixedly connected to a third servo motor, the output end of the third servo motor is fixedly connected to a second threaded rod, the outer wall of the second threaded rod is threadedly connected to a lifting rod slidably connected to the side wall of the vertical furnace body, the outer wall of the lifting rod is rotatably connected to a rotating rod, and one end of the rotating rod is rotatably connected to a sealing plate slidably connected to the outer wall of the horizontal furnace body, so that the heating area of ​​the furnace body is controllable, allowing the detection task of vertical components to be performed using only the front half of the furnace body.

[0020] Preferably, the lifting rod forms a lifting structure with the second threaded rod and the vertical furnace body, and the rotating rod forms a rotating structure with the sealing plate. Two groups of rotating rods are provided, and the position distribution of the two groups of rotating rods is symmetrical about the central axis of the lifting rod.

[0021] Preferably, the sealing plate forms a sliding structure with the transverse furnace body through the lifting rod and the rotating rod, and two groups of sealing plates are provided. The position distribution of the two groups of sealing plates is symmetrical about the central axis of the transverse furnace body. A sealing ring is provided at the connection between the outer wall of the transverse furnace body and the sealing plate, so that the heating area of ​​the furnace body is controllable, allowing the detection task of vertical components to be performed using only the front half of the furnace body.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When the heat generated by the test furnace is recovered and used through the smoke exhaust hood, the regulating cylinder provided in the present invention can be turned on according to the needs of the transport path to improve the convenient conversion effect of the recovered heat transmission path and improve the multi-path use effect of the recovered heat. The worm gear is driven to rotate by the rotation of the worm, and the rotation of the worm gear drives the regulating cylinder to rotate through the connection of the connecting shaft, so that the conversion port and the filter box and the connecting pipe are switched with each other, thereby improving the function of multi-path use of the recovered heat.

[0024] 2. The present invention meets the requirements of testing vertically installed ventilation ducts and horizontally installed component specimens by setting a flip cover plate, and adopts diffuse smoke exhaust technology to ensure the uniformity of pressure distribution in the furnace, and realizes centralized control of exhaust temperature, effectively reducing the exhaust volume.

[0025] 3. Through the setting of the sealing plate, when it is necessary to convert the test area in the furnace, the third servo motor is turned on to drive the lifting rod to slide along the side wall of the vertical furnace body through the rotation of the second threaded rod. The sliding of the lifting rod drives the sealing plate to slide along the outer wall of the horizontal furnace body through the rotation of the rotating rod, so that the heating area of ​​the furnace body is controllable, allowing the detection task of vertical components to be performed using only the front half of the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall side view structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the position distribution structure of the heat exchanger body of the present invention;

[0029] Figure 4 It is a schematic diagram of the sealing plate position distribution structure of the present invention;

[0030] Figure 5 It is a cross-sectional structural schematic diagram of the connection between the horizontal furnace body and the vertical furnace body of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection structure between the conversion box and the connecting hose of the present invention;

[0032] Figure 7 It is a schematic diagram of the connection structure between the worm and the worm wheel of the present invention;

[0033] Figure 8 It is a schematic diagram of the cross-sectional structure of the regulating tube of the present invention;

[0034] Fig. 9 It is a schematic diagram of the connection structure between the connecting shaft and the adjusting cylinder of the present invention;

[0035] Fig.10 For the present invention Figure 3 A in the figure is an enlarged structural diagram.

[0036] The reference numerals in the accompanying drawings are:

[0037] 1. Mounting seat; 2. Horizontal furnace body; 3. Vertical furnace body; 4. Flip cover; 5. Smoke hood; 6. Connecting hose; 7. Conversion box; 8. Filter box; 9. Heat exchanger body; 10. Delivery pipe; 11. Control box; 12. Conversion mechanism; 1201. First servo motor; 1202. Worm; 1203. Worm wheel; 1204. Indicator plate; 1205. Protractor; 1206. Connecting shaft; 1207. Adjusting cylinder; 1208. First conversion port; 1209. Second conversion port; 1210. Third conversion port; 13. Connecting pipe; 14. Second servo motor; 15. First threaded rod; 16. Threaded slide rod; 17. Adjusting mechanism; 1701. Third servo motor; 1702. Second threaded rod; 1703. Lifting rod; 1704. Rotating rod; 1705. Sealing plate. DETAILED DESCRIPTION

[0038] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0039] Embodiment 1:

[0040] See also Figures 1 to 10 The present embodiment provides an extra-large L-shaped multifunctional fire-resistant test furnace, including a mounting base 1, a horizontal furnace body 2 is mounted on the outer wall of the mounting base 1, a vertical furnace body 3 is fixedly connected to the outer wall of the horizontal furnace body 2, a flip cover 4 is rotatably connected to the top of the horizontal furnace body 2, a smoking hood 5 is slidably connected to the top of the vertical furnace body 3, a connecting hose 6 is fixedly connected to the outer wall of the smoking hood 5, a conversion box 7 is fixedly connected to one end of the connecting hose 6, a filter box 8 is fixedly connected to the outer wall of the conversion box 7 through a hose, a heat exchanger body 9 is fixedly connected to the outer wall of the filter box 8 through a hose, and a delivery pipe 10 fixedly connected to the bottom of the horizontal furnace body 2 is fixedly connected to the end of the heat exchanger body 9.

[0041] Embodiment 2:

[0042] Based on Example 1, a conversion mechanism 12 is further disclosed.

[0043] like Figure 6-Figure 9 As shown, the mounting base 1 also includes:

[0044] A control box 11 is fixedly connected to the top of the conversion box 7;

[0045] The conversion mechanism 12 is arranged inside the conversion box 7 and is used to conveniently convert the transport path of the recovered smoke;

[0046] The conversion mechanism 12 includes an adjustment cylinder 1207, a first servo motor 1201 is fixedly connected to the outer wall of the control box 11, a worm 1202 is fixedly connected to the output end of the first servo motor 1201, a worm 1203 is meshed with the outer wall of the worm 1202, an indicator sign 1204 is fixedly connected to the rotation center of the worm gear 1203, a protractor 1205 located on one side of the indicator sign 1204 is fixedly connected to the top of the control box 11, a connecting shaft 1206 is fixedly connected to the rotation center of the worm gear 1203, one end of the connecting shaft 1206 is fixedly connected to the adjustment cylinder 1207 that fits the inner wall of the adjustment cylinder 1207, a first conversion port 1208 is provided at the connection portion between the outer wall of the adjustment cylinder 1207 and the filter box 8, and the outer wall of the adjustment cylinder 1207 is provided with a There is a second conversion port 1209, and a third conversion port 1210 is provided at the connection portion between the outer wall of the regulating cylinder 1207 and the connecting hose 6. By setting the regulating cylinder 1207, it is beneficial to recover and use the heat generated by the test furnace through the smoke extraction hood 5. In order to improve the convenient conversion effect of the recovered heat transmission path and improve the multi-path use effect of the recovered heat, the first servo motor 1201 can be turned on according to the needs of the transmission path to drive the worm wheel 1203 to rotate through the rotation of the worm 1202. The rotation of the worm wheel 1203 drives the regulating cylinder 1207 to rotate through the connection of the connecting shaft 1206, so that the conversion port and the filter box 8 and the connecting pipe 13 can be switched with each other, thereby improving the function of multi-path use of the recovered heat.

[0047] like Figure 1-Figure 5 As shown, the inner walls of the horizontal furnace body 2 and the vertical furnace body 3 are both provided with refractory fiber blankets, the outer frames of the horizontal furnace body 2 and the vertical furnace body 3 are made of Q235 steel plates as a whole, the bottoms of the furnaces of the horizontal furnace body 2 and the vertical furnace body 3 are paved with refractory bricks, the smoke hood 5 adopts diffuse smoke exhaust technology, and the outer wall contour of the connecting part of the horizontal furnace body 2 and the vertical furnace body 3 is L-shaped, which is conducive to achieving excellent thermal insulation performance through the setting of the refractory fiber blanket, and is conducive to ensuring the rigidity and strength of the structure through the setting of the outer frames of the horizontal furnace body 2 and the vertical furnace body 3 as a whole made of Q235 steel plates, and is conducive to improving the thermal conductivity of the furnace body through the setting of refractory bricks, and also provides the necessary structural rigidity.

[0048] like Figure 7 As shown, the indicator sign 1204 forms a rotating structure with the control box 11 through the worm 1202 and the worm wheel 1203. The rotation center of the worm wheel 1203 and the rotation center of the indicator sign 1204 are arranged to overlap with each other, which is beneficial to the rotation of the worm 1202. Through the connection of the worm wheel 1203, the indicator sign 1204 is driven to rotate along the inner wall of the control box 11, which plays a role in conveniently checking the rotation degree of the adjustment cylinder 1207.

[0049] like Figure 8-Figure 9As shown, the adjusting cylinder 1207 forms a rotating structure with the conversion box 7 through the worm 1202 and the worm wheel 1203, the rotation center of the worm wheel 1203 and the rotation center of the adjusting cylinder 1207 are arranged to overlap with each other, the outer wall contour of the adjusting cylinder 1207 and the inner wall contour of the conversion box 7 are adapted to each other, and the overall material of the adjusting cylinder 1207 and the conversion box 7 are transparent materials, which is beneficial to the rotation of the worm 1202. Through the connection with the worm wheel 1203, the adjusting cylinder 1207 is driven to rotate along the inner wall of the conversion box 7, which plays a role in convenient switching of the conveying direction of the conversion port, and is beneficial to the setting that the overall material of the adjusting cylinder 1207 and the conversion box 7 are transparent materials, which plays a role in conveniently checking the conveying status in the adjusting cylinder 1207.

[0050] like Figure 8-Figure 9 As shown, the outer wall contour of the connecting part between the central axis of the first conversion port 1208 and the central axis of the second conversion port 1209 and the central axis of the third conversion port 1210 is in a T shape, a conveying cavity is provided on the inner wall of the regulating cylinder 1207, the specific model of the heat exchanger body 9 is JNQ, and a connecting pipe 13 is fixedly connected to the outer wall of the conversion box 7, which is conducive to improving the function of multi-path use of recovered heat through the setting of the outer wall contour of the connecting part between the central axis of the first conversion port 1208 and the central axis of the second conversion port 1209 and the central axis of the third conversion port 1210 in a T shape, and is conducive to the setting of the conveying cavity provided on the inner wall of the regulating cylinder 1207, so as to temporarily store the recovered heat, and to the setting of the connecting pipe 13 fixedly connected to the outer wall of the conversion box 7, so as to utilize the recovered heat in other operating equipment, and is conducive to the setting of the specific model of the heat exchanger body 9 being JNQ, so as to conveniently recover and reuse the heat generated by the refractory test furnace.

[0051] like Figure 2 As shown, the outer wall of the mounting base 1 is fixedly connected to the second servo motor 14, the output end of the second servo motor 14 is fixedly connected to the first threaded rod 15, the outer wall of the first threaded rod 15 is threadedly connected to the threaded sliding rod 16 slidably connected to the outer wall of the mounting base 1, and the setting of the flip cover 4 can meet the requirements of vertically installed ventilation ducts and horizontally installed component specimen testing, and adopt diffuse smoke exhaust technology to ensure the uniformity of pressure distribution in the furnace, and realize centralized control of exhaust temperature, effectively reducing the exhaust volume.

[0052] like Figure 2 As shown, the threaded slide rod 16 forms a reciprocating sliding structure between the first threaded rod 15 and the mounting seat 1, and the threaded slide rod 16 and the smoke hood 5 are integrally fixedly connected, which is conducive to the rotation of the first threaded rod 15, driving the threaded slide rod 16 to slide back and forth along the outer wall of the mounting seat 1, and through the setting of the integral fixed connection between the threaded slide rod 16 and the smoke hood 5, it plays a role in driving the smoke hood 5 to slide synchronously.

[0053] like Figure 3-Figure 10 As shown,

[0054] An adjustment mechanism 17, arranged on the outer wall of the vertical furnace body 3, for adjusting the processing areas of the horizontal furnace body 2 and the vertical furnace body 3;

[0055] The adjusting mechanism 17 includes a rotating rod 1704 and a sealing plate 1705. The side wall of the vertical furnace body 3 is fixedly connected to a third servo motor 1701. The output end of the third servo motor 1701 is fixedly connected to a second threaded rod 1702. The outer wall of the second threaded rod 1702 is threadedly connected to a lifting rod 1703 that is slidably connected to the side wall of the vertical furnace body 3. The outer wall of the lifting rod 1703 is rotatably connected to the rotating rod 1704. One end of the rotating rod 1704 is rotatably connected to a sealing plate 1705 that is slidably connected to the outer wall of the horizontal furnace body 2. Sealing plate 1705 is provided, so that when the test area in the furnace needs to be converted, the third servo motor 1701 is turned on to drive the lifting rod 1703 to slide along the side wall of the vertical furnace body 3 through the rotation of the second threaded rod 1702. The sliding of the lifting rod 1703 drives the sealing plate 1705 to slide along the outer wall of the horizontal furnace body 2 through the rotation of the rotating rod 1704, so that the heating area of ​​the furnace body is controllable, allowing the detection task of vertical components to be performed using only the front half of the furnace body.

[0056] like Fig.10 As shown, the lifting rod 1703 forms a lifting structure through the second threaded rod 1702 and the vertical furnace body 3, and the rotating rod 1704 forms a rotating structure through the lifting rod 1703 and the sealing plate 1705. There are two groups of rotating rods 1704, and the position distribution of the two groups of rotating rods 1704 is symmetrical about the central axis of the lifting rod 1703, which is conducive to the rotation of the second threaded rod 1702, driving the lifting rod 1703 to slide along the outer wall of the vertical furnace body 3, and playing a role in driving the rotating rod 1704 to rotate conveniently, and is conducive to the sliding of the lifting rod 1703 through the connection of the sealing plate 1705, driving the rotating rod 1704 to rotate conveniently, and playing a role in driving the two groups of sealing plates 1705 to slide relative to each other.

[0057] like Fig. 9As shown, the sealing plate 1705 forms a sliding structure with the horizontal furnace body 2 through the lifting rod 1703 and the rotating rod 1704, and there are two groups of sealing plates 1705. The position distribution of the two groups of sealing plates 1705 is symmetrical about the central axis of the horizontal furnace body 2. A sealing ring is provided at the connection between the outer wall of the horizontal furnace body 2 and the sealing plate 1705, which is conducive to the sliding of the lifting rod 1703 through the connection of the rotating rod 1704, driving the sealing plate 1705 to slide along the outer wall of the horizontal furnace body 2, so that the heating area of ​​the furnace body is controllable, allowing only the front half of the furnace body to perform the detection task of the vertical component, and facilitating the conversion and adjustment of the test area by setting two groups of sealing plates 1705 whose position distribution is symmetrical about the central axis of the horizontal furnace body 2.

[0058] Working principle:

[0059] like Figure 1-Figure 10 As shown, when the fire-resistant test furnace is in use, first, when the heat generated by the test furnace is recovered and used through the smoke hood 5, in order to improve the convenient conversion effect of the recovered heat transmission path and improve the multi-path use effect of the recovered heat, the first servo motor 1201 can be turned on according to the needs of the transmission path to drive the worm wheel 1203 to rotate through the rotation of the worm 1202. The rotation of the worm wheel 1203 drives the adjustment cylinder 1207 to rotate through the connection of the connecting shaft 1206, so that the conversion port and the filter box 8 and the connecting pipe 13 are switched with each other, thereby improving the function of multi-path use of the recovered heat;

[0060] Next, the cover plate 4 is turned over to meet the requirements of testing the vertically installed ventilation duct and horizontally installed component specimens, and the diffuse exhaust technology is used to ensure the uniformity of the pressure distribution in the furnace, and to achieve centralized control of the exhaust temperature, effectively reducing the exhaust volume;

[0061] Finally, when it is necessary to convert the test area in the furnace, turn on the third servo motor 1701 and drive the lifting rod 1703 to slide along the side wall of the vertical furnace body 3 through the rotation of the second threaded rod 1702. The sliding of the lifting rod 1703 drives the sealing plate 1705 to slide along the outer wall of the horizontal furnace body 2 through the rotation of the rotating rod 1704, so that the heating area of ​​the furnace body is controllable, allowing the vertical component inspection task to be performed using only the front half of the furnace body.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An extra-large L-shaped multifunctional fire-resistant test furnace, comprising a mounting base (1), characterized in that: The outer wall of the mounting seat (1) is mounted with a transverse furnace body (2), the outer wall of the transverse furnace body (2) is fixedly connected with a vertical furnace body (3), the top of the transverse furnace body (2) is rotatably connected with a flip cover plate (4), the top of the vertical furnace body (3) is slidably connected with a smoke extraction hood (5), the outer wall of the smoke extraction hood (5) is fixedly connected with a connecting hose (6), one end of the connecting hose (6) is fixedly connected with a conversion box (7), the outer wall of the conversion box (7) is fixedly connected with a filter box (8) via a hose, the outer wall of the filter box (8) is fixedly connected with a heat exchanger body (9) via a hose, and the end of the heat exchanger body (9) is fixedly connected with a delivery pipe (10) fixedly connected to the bottom of the transverse furnace body (2); The mounting seat (1) further comprises: A control box (11) is fixedly connected to the top of the conversion box (7); A conversion mechanism (12) is arranged inside the conversion box (7) and is used to conveniently convert the transport path of the recovered smoke; An adjustment mechanism (17) is arranged on the outer wall of the vertical furnace body (3) and is used to adjust the processing areas of the horizontal furnace body (2) and the vertical furnace body (3); The conversion mechanism (12) comprises an adjustment cylinder (1207); a first servo motor (1201) is fixedly connected to the outer wall of the control box (11); a worm (1202) is fixedly connected to the output end of the first servo motor (1201); a worm wheel (1203) is meshed with the outer wall of the worm wheel (1202); a signboard (1204) is fixedly connected to the rotation center of the worm wheel (1203); a protractor (1205) located on one side of the signboard (1204) is fixedly connected to the top of the control box (11); and the worm wheel (1203) is meshed with the outer wall of the worm wheel (1202). The rotation center of the wheel (1203) is fixedly connected to a connecting shaft (1206), one end of the connecting shaft (1206) is fixedly connected to an adjusting cylinder (1207) that fits the inner wall of the adjusting cylinder (1207), a first conversion port (1208) is provided at a connection position between the outer wall of the adjusting cylinder (1207) and the filter box (8), a second conversion port (1209) is provided at the outer wall of the adjusting cylinder (1207), and a third conversion port (1210) is provided at a connection position between the outer wall of the adjusting cylinder (1207) and the connecting hose (6).

2. The super large L-shaped multifunctional fire-resistant test furnace according to claim 1, characterized in that: The inner side walls of the transverse furnace body (2) and the vertical furnace body (3) are both provided with refractory fiber blankets, the outer frames of the transverse furnace body (2) and the vertical furnace body (3) are made of Q235 steel plates, the bottoms of the furnaces of the transverse furnace body (2) and the vertical furnace body (3) are both paved with refractory bricks, the smoke hood (5) adopts diffused smoke exhaust technology, and the outer wall contour of the connection part between the transverse furnace body (2) and the vertical furnace body (3) is L-shaped.

3. The super large L-shaped multifunctional fire resistant test furnace according to claim 1, characterized in that: The sign (1204) forms a rotating structure with the control box (11) through the worm (1202) and the worm wheel (1203), and the rotation center of the worm wheel (1203) and the rotation center of the sign (1204) are arranged to overlap with each other.

4. The super large L-shaped multifunctional fire-resistant test furnace according to claim 1, characterized in that: The adjusting cylinder (1207) forms a rotating structure with the conversion box (7) through the worm (1202) and the worm wheel (1203); the rotation center of the worm wheel (1203) and the rotation center of the adjusting cylinder (1207) are arranged to overlap with each other; the outer wall contour of the adjusting cylinder (1207) and the inner wall contour of the conversion box (7) are arranged to match each other; and the overall material of the adjusting cylinder (1207) and the conversion box (7) are both transparent materials.

5. The super large L-shaped multifunctional fire-resistant test furnace according to claim 1, characterized in that: The outer wall contour of the connection portion between the central axis of the first conversion port (1208), the central axis of the second conversion port (1209) and the central axis of the third conversion port (1210) is in a T shape, a conveying cavity is provided on the inner wall of the regulating cylinder (1207), the specific model of the heat exchanger body (9) is JNQ, and a connecting pipe (13) is fixedly connected to the outer wall of the conversion box (7).

6. The super large L-shaped multifunctional fire-resistant test furnace according to claim 1, characterized in that: A second servo motor (14) is fixedly connected to the outer wall of the mounting seat (1), a first threaded rod (15) is fixedly connected to the output end of the second servo motor (14), and a threaded sliding rod (16) slidably connected to the outer wall of the mounting seat (1) is threadedly connected to the outer wall of the first threaded rod (15).

7. The super large L-shaped multifunctional fire-resistant test furnace according to claim 6, characterized in that: The threaded sliding rod (16) forms a reciprocating sliding structure through the first threaded rod (15) and the mounting seat (1), and the threaded sliding rod (16) and the smoking hood (5) are integrally fixedly connected.

8. The super large L-shaped multifunctional fire resistance test furnace according to claim 1, characterized in that: The adjustment mechanism (17) comprises a rotating rod (1704) and a sealing plate (1705); the side wall of the vertical furnace body (3) is fixedly connected to a third servo motor (1701); the output end of the third servo motor (1701) is fixedly connected to a second threaded rod (1702); the outer wall of the second threaded rod (1702) is threadedly connected to a lifting rod (1703) slidably connected to the side wall of the vertical furnace body (3); the outer wall of the lifting rod (1703) is rotatably connected to the rotating rod (1704); one end of the rotating rod (1704) is rotatably connected to a sealing plate (1705) slidably connected to the outer wall of the horizontal furnace body (2).

9. The super large L-shaped multifunctional fire-resistant test furnace according to claim 8, characterized in that: The lifting rod (1703) forms a lifting structure with the second threaded rod (1702) and the vertical furnace body (3), and the rotating rod (1704) forms a rotating structure with the lifting rod (1703) and the sealing plate (1705). Two groups of rotating rods (1704) are provided, and the position distribution of the two groups of rotating rods (1704) is symmetrical about the central axis of the lifting rod (1703).

10. The super large L-shaped multifunctional fire-resistant test furnace according to claim 8, characterized in that: The sealing plate (1705) forms a sliding structure with the horizontal furnace body (2) through the lifting rod (1703) and the rotating rod (1704), and two groups of sealing plates (1705) are provided. The position distribution of the two groups of sealing plates (1705) is symmetrical about the central axis of the horizontal furnace body (2), and a sealing ring is provided at the connection position between the outer wall of the horizontal furnace body (2) and the sealing plate (1705).

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