Flame-retardant test simulation equipment for Teflon air pipe

Abstract

The utility model relates to the technical field of air duct performance testing, in particular to a Teflon air duct flame retardant test simulation device which comprises a test box and a Teflon air duct, and the test box is used for carrying out a flame retardant test on the Teflon air duct; the combustion mechanism comprises two placement plates fixedly connected to the bottom of the test box, the upper surfaces of the placement plates are attached to the side wall of the Teflon air pipe, the bottom of the test box is fixedly connected with an ignition disc, the upper end of the ignition disc is provided with a fire-jet head, the ignition disc is fixedly connected with a gas pipe, and the gas pipe is fixedly connected with the test box. The middle part of the side wall of the test box is fixedly connected with an oxygen pipe, and the oxygen pipe is provided with a flow control valve. By arranging the combustion mechanism, oxygen can be conveyed into the test box, so that the Teflon air pipe has a good oxygen environment in the combustion process, and the situation that the oxygen deficit phenomenon occurs in the test box after combustion at present, so that the combustion condition of the air pipe under the condition of sufficient oxygen in the use process cannot be simulated is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct performance testing, in particular to a device for simulating flame retardant testing of Teflon air ducts. Background Art

[0002] Teflon air duct is made of Teflon material. Teflon is a high molecular polymer made by polymerization of tetrafluoroethylene as a monomer. It has excellent heat and cold resistance and can be used for a long time at -180-260℃, which makes the air duct have excellent performance during use.

[0003] Currently, after the air duct is manufactured, its hardness, cold resistance, flame retardancy and other properties need to be tested. Only after its performance meets the standards can the air duct be shipped in batches. However, when conducting a flame retardancy test on the air duct, the air duct is currently placed directly in a test box, and then the air duct is ignited. Then, the weight change of the air duct after burning for a period of time is checked to judge its flame retardancy. However, when burning in the test box, since the environment in the test box is closed at this time, the test box will experience oxygen deficiency after burning, and thus cannot simulate the combustion of the air duct under sufficient oxygen conditions during outdoor use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a device for simulating the flame retardancy test of Teflon air ducts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for simulating flame retardant testing of Teflon air ducts, comprising:

[0007] A test box and a Teflon air duct, wherein the test box is used for flame retardancy testing of the Teflon air duct; a combustion mechanism, wherein the combustion mechanism comprises two placement plates fixedly connected to the bottom of the test box, wherein the upper surfaces of the placement plates are in contact with the side walls of the Teflon air duct, wherein an ignition disk is fixedly connected to the bottom of the test box, wherein a flame head is provided at the upper end of the ignition disk, wherein a gas pipe is fixedly connected to the ignition disk, wherein an oxygen pipe is fixedly connected to the middle of the side wall of the test box, wherein a flow control valve is installed on the oxygen pipe;

[0008] The clamping mechanism is used to clamp the Teflon air duct.

[0009] Preferably, the clamping mechanism includes two clamping plates, the lower surfaces of the clamping plates are in contact with the side walls of the Teflon air duct, the top of the test box is sealingly and slidingly connected with a plurality of sliding rods, the lower ends of the sliding rods are fixedly connected to the upper ends of the corresponding clamping plates, the top of the test box is sealingly and rotatably connected with two threaded rods, and the side walls of the threaded rods are threadedly connected with the corresponding side walls of the clamping plates.

[0010] Preferably, an air pump is fixedly connected to the upper end of the test box, an input end of the air pump is connected to the top of the test box through an air suction pipe, and an output end of the air pump is located outside.

[0011] Preferably, it also includes a slag collecting mechanism, which includes a slag collecting plate slidably connected to the side walls of the two placement plates, the side wall of the slag collecting plate is provided with a through groove for the movement of the flame head, and a protective plate is fixedly connected to the upper end of the slag collecting plate.

[0012] Preferably, a box door is hinged on the side wall of the test box, a transparent glass is installed on the side wall of the box door, and the side wall of the box door is connected to the side wall of the test box through a buckle.

[0013] The utility model has the following beneficial effects:

[0014] 1. By setting up a combustion mechanism, oxygen can be transported into the test box, so that the Teflon air duct has a good oxygen environment during the combustion process, avoiding the current oxygen deficiency in the test box after combustion, which cannot simulate the combustion of the air duct when there is sufficient oxygen during use.

[0015] 2. By setting up a clamping mechanism, the two clamping plates are moved down to clamp the Teflon air duct to prevent the Teflon air duct from shifting in position during the combustion process, thereby affecting the simulation test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a device for simulating flame retardancy testing of Teflon air ducts proposed by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure with the middle box door removed;

[0018] Figure 3 for Figure 1 A vertical cross-sectional structural schematic diagram of ;

[0019] Figure 4 for Figure 1 Schematic diagram of the rear view structure.

[0020] In the figure: 1 test box, 2 placement plate, 3 Teflon air duct, 4 ignition plate, 5 flame head, 6 gas pipe, 7 oxygen pipe, 8 flow control valve, 9 air pump, 10 suction pipe, 11 sliding rod, 12 clamping plate, 13 threaded rod, 14 box door, 15 perspective glass, 16 slag collecting tray, 17 through groove, 18 protective plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A device for simulating flame retardant testing of Teflon air ducts includes a test box 1 and a Teflon air duct 3. The test box 1 is used for flame retardant testing of the Teflon air duct 3. A door 14 is hinged on the side wall of the test box 1. A transparent glass 15 is installed on the side wall of the door 14. The side wall of the door 14 is connected to the side wall of the test box 1 through a buckle, and a rubber sealing pad is arranged on the side wall of the door 14 to ensure the sealing between the door 14 and the test box 1 after the two are fitted together.

[0023] It should be noted that when the box door 14 is rotated upward to open, a support plate can be placed between the box door 14 and the test box 1 to support the box door 14, which is not shown in the figure and is a prior art.

[0024] The combustion mechanism includes two placement plates 2 fixedly connected to the bottom of the test box 1, and the upper surface of the placement plate 2 is in contact with the side wall of the Teflon air duct 3. An ignition plate 4 is fixedly connected to the bottom of the test box 1. A flame head 5 is provided at the upper end of the ignition plate 4. A gas pipe 6 is fixedly connected to the ignition plate 4. It should be noted that the gas can be ignited by the ignition plate 4, which is consistent with the function of the gas stove. It is a prior art and will not be described in detail here. An oxygen tube 7 is fixedly connected to the middle of the side wall of the test box 1. A flow control valve 8 is installed on the oxygen tube 7 to facilitate the control of the amount of oxygen entering the test box 1. An air pump 9 is fixedly connected to the upper end of the test box 1. The input end of the air pump 9 is connected to the top of the test box 1 through an air intake pipe 10. The output end of the air pump 9 is located outside and can discharge the exhaust gas generated by the combustion in the test box 1.

[0025] Furthermore, the oxygen tube 7 can transport oxygen into the test box 1, so that the Teflon air duct 3 has a good oxygen environment during the combustion process, avoiding the current oxygen deficiency in the test box after combustion, thereby failing to simulate the combustion condition of the air duct when there is sufficient oxygen during use.

[0026] The clamping mechanism is used to clamp the Teflon air duct 3. The clamping mechanism includes two clamping plates 12. The lower surface of the clamping plate 12 is in contact with the side wall of the Teflon air duct 3. The top of the test box 1 is sealed and slidably connected with multiple sliding rods 11. The lower end of the sliding rod 11 is fixedly connected to the upper end of the corresponding clamping plate 12. The top of the test box 1 is sealed and rotatably connected with two threaded rods 13. The side walls of the threaded rods 13 are threadedly connected to the side walls of the corresponding clamping plates 12. By rotating the two threaded rods 13 clockwise, the two clamping plates 12 can be driven to move downward, thereby clamping the Teflon air duct 3 to prevent the Teflon air duct 3 from shifting in position during the combustion process, thereby affecting its simulation test effect.

[0027] The slag collecting mechanism comprises a slag collecting plate 16 which is slidably connected to the side walls of the two placement plates 2. The side wall of the slag collecting plate 16 is provided with a through groove 17 for the movement of the flame head 5. The upper end of the slag collecting plate 16 is fixedly connected with a protective plate 18.

[0028] Furthermore, the debris generated by the combustion on the Teflon air duct 3 will directly fall onto the slag collecting tray 16, preventing the debris from falling into the bottom of the test box 1 and being difficult to clean. In the subsequent process, the slag collecting tray 16 only needs to be pulled out from the two placement plates 2 to facilitate the cleaning of the debris on the slag collecting tray 16.

[0029] In the utility model, the Teflon air duct 3 to be subjected to the flame retardant test is first weighed outside, and then the box door 14 is opened and supported by the external support plate, and then the Teflon air duct 3 is placed on the two placement plates 2, and the two threaded rods 13 are rotated clockwise to drive the two clamping plates 12 to move downward and clamp the Teflon air duct 3;

[0030] Then the staff starts the ignition plate 4, and then the gas is ignited at the flame head 5, and the lower part of the Teflon air duct 3 can be ignited. Finally, the staff turns the box door 14 downward and fixes the box door 14 by buckles. Then the staff can check the combustion of the Teflon air duct 3 through the perspective glass 15, and during combustion, oxygen can be transported into the test box 1 through the oxygen tube 7, so as to ensure that the Teflon air duct 3 has a good oxygen environment during the combustion process, avoiding the current oxygen deficiency in the test box after combustion, so that the combustion of the air duct under the condition of sufficient oxygen during use cannot be simulated;

[0031] During combustion, the air pump 9 is started to discharge the waste gas generated during combustion in the test box 1. After a specified period of combustion, the oxygen supply can be stopped, and the oxygen content in the test box 1 will gradually decrease until there is no more combustion on the Teflon air duct 3.

[0032] Then, the box door 14 is opened and the two threaded rods 13 are rotated counterclockwise to move the two clamping plates 12 upward, so that the Teflon air duct 3 can be taken out and weighed outside, and then the weight change of the Teflon air duct 3 within a specific time period can be obtained, so as to test and judge the flame retardant performance of the Teflon air duct 3.

[0033] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A device for simulating flame retardancy test of Teflon air duct, characterized in that: include: A test box (1) and a Teflon air duct (3), wherein the test box (1) is used for flame retardancy testing of the Teflon air duct (3); A combustion mechanism, the combustion mechanism comprising two placement plates (2) fixedly connected to the bottom of a test box (1), the upper surface of the placement plates (2) being in contact with the side wall of a Teflon air duct (3), an ignition plate (4) fixedly connected to the bottom of the test box (1), a flame head (5) being provided at the upper end of the ignition plate (4), a gas pipe (6) being fixedly connected to the ignition plate (4), an oxygen pipe (7) being fixedly connected to the middle of the side wall of the test box (1), and a flow control valve (8) being installed on the oxygen pipe (7); A clamping mechanism, wherein the clamping mechanism is used to clamp the Teflon air duct (3).

2. The device for simulating flame retardancy test of Teflon air duct according to claim 1, characterized in that: The clamping mechanism comprises two clamping plates (12), the lower surfaces of the clamping plates (12) are in contact with the side walls of the Teflon air duct (3), the top of the test box (1) is sealingly and slidably connected with a plurality of sliding rods (11), the lower ends of the sliding rods (11) are fixedly connected with the upper ends of the corresponding clamping plates (12), the top of the test box (1) is sealingly and rotatably connected with two threaded rods (13), the side walls of the threaded rods (13) are threadedly connected with the side walls of the corresponding clamping plates (12).

3. The device for simulating flame retardancy test of Teflon air duct according to claim 1, characterized in that: An air pump (9) is fixedly connected to the upper end of the test box (1); an input end of the air pump (9) is connected to the top of the test box (1) via an air suction pipe (10); and an output end of the air pump (9) is located outside.

4. The device for simulating flame retardancy test of Teflon air duct according to claim 1, characterized in that: It also comprises a slag collecting mechanism, the slag collecting mechanism comprising a slag collecting plate (16) slidably connected to the side walls of the two placement plates (2), the side wall of the slag collecting plate (16) is provided with a through slot (17) for the movement of the flame spray head (5), and the upper end of the slag collecting plate (16) is fixedly connected to a protective plate (18).

5. The device for simulating flame retardancy test of Teflon air duct according to claim 1, characterized in that: The side wall of the test box (1) is hinged with a box door (14), the side wall of the box door (14) is installed with a transparent glass (15), and the side wall of the box door (14) is connected to the side wall of the test box (1) through a buckle.

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