Fire resistance testing device

Abstract

The utility model belongs to the technical field of testing devices, and particularly relates to a fire resistance testing device which comprises a machine table, a protective cover installed at the top of the machine table, a top cover installed at the top of the protective cover, a guide rail installation support installed below the top cover, and an annular guide rail circulation conveying mechanism installed at the bottom of the guide rail installation support. A gas burner is installed in the protection cover and located below the annular guide rail circulating conveying mechanism, an air exhaust cover is installed above the guide rail installation support and communicated with the guide rail installation support, a fan is installed in the air exhaust cover, the top of the air exhaust cover is connected with an air pipe, one end of the air pipe is connected with a filtering and adsorbing device, and the other end of the air pipe is connected with a gas outlet. The bottom of the filtering and adsorbing device is connected with the spraying and adsorbing device, one side of the spraying and adsorbing device is connected with the exhaust pipe, waste gas generated in the testing process can be effectively purified, and the situation that a large amount of harmful gas in the waste gas is diffused to the periphery, and the air environment of a work site and the health of testing personnel are affected is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing devices, and in particular relates to a fire resistance testing device. Background Art

[0002] Flame retardant varnish is a flame retardant coating material with good fire resistance. It not only beautifies the environment, but also effectively slows down the spread of fire. When testing its fire resistance, it needs to be coated on the test board and tested by burning it with flames. However, during the test, a lot of harmful exhaust gas will be generated, affecting the air quality on site and the health of the testers. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a fire resistance testing device that can effectively purify the exhaust gas during the test process to prevent the harmful gases in the exhaust gas from being emitted to the surroundings in large quantities, thereby affecting the air environment of the workplace and the health of the testers.

[0004] To achieve the above objectives, the utility model provides the following technical solutions: a fire resistance testing device, comprising a machine platform, a protective cover is installed on the top of the machine platform, a top cover is installed on the top of the protective cover, a guide rail mounting bracket is installed below the top cover, a ring-shaped guide rail circulating conveying mechanism is installed at the bottom of the guide rail mounting bracket, a gas burner is installed in the protective cover, the gas burner is located below the ring-shaped guide rail circulating conveying mechanism, an exhaust hood is installed above the guide rail mounting bracket, the exhaust hood is connected to the guide rail mounting bracket, a fan is installed inside the exhaust hood, and an air duct is connected to the top of the exhaust hood. One end of the air duct is connected to the filter adsorption device, which includes a filter adsorption bin, a filter element mounting slide is slidably installed inside the filter adsorption bin, a filter element insertion slot is provided on the inner side of the filter element mounting slide, and the filter element insertion slot is plug-in connected to multiple groups of activated carbon filter elements and molecular sieve filter elements. A spray adsorption device is provided below the filter adsorption device, and the spray adsorption device includes a spray bin, a spray pipe group is installed inside the spray bin, the bottom of the spray bin is a spray liquid tank, a water pump is provided on the side of the spray bin, the water pump is connected to the liquid inlet end of the spray pipe group, and one side of the spray adsorption device is connected to the exhaust pipe.

[0005] The beneficial effects of the utility model are as follows: the fan is controlled to run, and the exhaust gas generated by the combustion inside the protective cover is sucked into the exhaust hood. At the same time, the outside air enters the top cover through the air inlet slot under the action of negative pressure to provide oxygen for combustion. The exhaust gas entering the exhaust hood is sent to the air duct and enters the filtering and adsorption device. The harmful components in the exhaust gas are adsorbed and filtered by the multiple activated carbon filters and molecular sieve filters inside the filtering and adsorption bin, and the first step of purification is performed. Then the exhaust gas enters the spray bin, and the water pump pumps the spray liquid in the spray liquid tank in the spray bin into the spray pipe group and sprays it evenly downward. The sprayed spray liquid droplets are fully contacted with the exhaust gas entering the spray bin to further purify the exhaust gas. The purified exhaust gas is discharged through the exhaust pipe. By effectively purifying the exhaust gas during the test, the harmful gases in the exhaust gas are prevented from spreading to the surroundings in large quantities, which will affect the air environment of the workplace and the health of the testers.

[0006] To clamp and support the test panel:

[0007] As a further improvement of the above technical solution: a clamping plate is installed at the bottom of the slider of the annular guide rail circulating conveying mechanism.

[0008] The beneficial effect of this improvement is that the clamping plate is used to clamp and support the test plate.

[0009] To inhale air to provide oxygen for combustion:

[0010] As a further improvement of the above technical solution: an air inlet slot is provided on the top of the machine.

[0011] The beneficial effect of this improvement is that the external air enters the interior of the top cover through the air inlet slot under the action of negative pressure, providing oxygen for combustion.

[0012] To fix the filter element between the slide bracket and the filter adsorption chamber:

[0013] As a further improvement of the above technical solution: a magnetic lock is installed inside the filter adsorption bin, and a magnetic plate is installed on one side of the filter element mounting slide for use in conjunction with the magnetic lock.

[0014] The beneficial effect of this improvement is: when the activated carbon filter element or molecular sieve filter element needs to be replaced, the magnetic lock is controlled to disconnect the circuit, and the magnetic fixation between the magnetic lock and the magnetic plate is released. After the replacement is completed, the filter element mounting slide is pushed back to its original position, and the magnetic lock is controlled to be energized again to be magnetically fixed to the magnetic plate.

[0015] To pull and push back the filter mounting slide:

[0016] As a further improvement of the above technical solution: a push-pull handle is installed on one side of the filter element mounting slide.

[0017] The beneficial effect of this improvement is that the push-pull handle is used to pull and push back the filter element installation slide bracket.

[0018] To drain and fill the spray fluid:

[0019] As a further improvement of the above technical solution: the side of the spray bin is also connected to the valve and the filling port.

[0020] The beneficial effect of this improvement is that the spray liquid in the spray liquid tank can be discharged by opening the valve, and new spray liquid can be injected through the filling port.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model;

[0025] Figure 4 It is a partial cutaway schematic diagram of the protective cover of the utility model;

[0026] Figure 5 The cross-sectional structure diagram of the filter adsorption device in the utility model is shown in FIG. Figure 1 ;

[0027] Figure 6 The cross-sectional structure diagram of the filter adsorption device in the utility model is shown in FIG. Figure 2 ;

[0028] Figure 7 The cross-sectional structure diagram of the spray adsorption device in the utility model is shown in FIG. Figure 1 ;

[0029] Figure 8 The cross-sectional structure diagram of the spray adsorption device in the utility model is shown in FIG. Figure 2 .

[0030] In the figure: 1. machine; 2. protective cover; 3. top cover; 5. guide rail mounting bracket; 6. circular guide rail circulation conveying mechanism; 7. clamping plate; 8. gas burner; 9. exhaust hood; 10. fan; 11. air inlet slot; 12. air duct; 13. filter adsorption device; 14. filter adsorption bin; 15. filter element mounting slide; 16. push-pull handle; 17. filter element insertion slot; 18. activated carbon filter element; 19. molecular sieve filter element; 20. magnetic lock; 21. magnetic plate; 22. spray adsorption device; 23. spray bin; 24. spray pipe group; 25. spray liquid tank; 26. water pump; 27. exhaust pipe; 28. valve; 29. ​​filling port. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0032] like Figure 1-Figure 8 As shown, a fire resistance testing device comprises a machine 1, a protective cover 2 is installed on the top of the machine 1, a top cover 3 is installed on the top of the protective cover 2, a guide rail mounting bracket 5 is installed below the top cover 3, a ring-shaped guide rail circulating conveying mechanism 6 is installed at the bottom of the guide rail mounting bracket 5, a gas burner 8 is installed in the protective cover 2, the gas burner 8 is located below the ring-shaped guide rail circulating conveying mechanism 6, an exhaust hood 9 is installed above the guide rail mounting bracket 5, the exhaust hood 9 is connected to the guide rail mounting bracket 5, a fan 10 is installed inside the exhaust hood 9, an air duct 12 is connected to the top of the exhaust hood 9, one end of the air duct 12 is connected to the filtering and adsorption device 13, and the filter adsorption device 13 is connected to the filter adsorption device 13. The filter adsorption device 13 includes a filter adsorption bin 14, a filter element mounting slide 15 is slidably installed inside the filter adsorption bin 14, a filter element insertion slot 17 is provided on the inner side of the filter element mounting slide 15, and the filter element insertion slot 17 is plug-in connected to multiple groups of activated carbon filter elements 18 and molecular sieve filter elements 19. A spray adsorption device 22 is provided below the filter adsorption device 13, and the spray adsorption device 22 includes a spray bin 23, a spray pipe group 24 is installed inside the spray bin 23, and the bottom of the spray bin 23 is a spray liquid tank 25. A water pump 26 is provided on the side of the spray bin 23, and the water pump 26 is connected to the liquid inlet end of the spray pipe group 24. One side of the spray adsorption device 22 is connected to the exhaust pipe 27.

[0033] The fan 10 is controlled to run, and the exhaust gas generated by the combustion inside the protective cover 2 is sucked into the exhaust hood 9. At the same time, the outside air enters the top cover 3 through the air inlet slot 11 under the action of negative pressure to provide oxygen for combustion. The exhaust gas entering the exhaust hood 9 is sent to the air duct 12 and enters the filtering and adsorption device 13. The harmful components in the exhaust gas are adsorbed and filtered by the multiple activated carbon filter elements 18 and the molecular sieve filter element 19 in the filtering and adsorption bin 14 to perform the first purification work. Then the exhaust gas enters the spray bin 23, and the water pump 26 pumps the spray liquid in the spray liquid tank 25 in the spray bin 23 into the spray pipe group 24 and sprays it downward evenly. The sprayed spray liquid droplets are fully contacted with the exhaust gas entering the spray bin 23 to further purify the exhaust gas. The purified exhaust gas is discharged through the exhaust pipe 27. By effectively purifying the exhaust gas during the test, it is prevented that the harmful gas in the exhaust gas spreads to the surroundings in large quantities, which affects the air environment of the workplace and the health of the testers.

[0034] A clamping plate 7 is installed at the bottom of the slider of the annular guide rail circulating conveying mechanism 6 .

[0035] The clamping plate 7 is used to clamp and support the test plate.

[0036] An air inlet slot 11 is provided on the top of the machine 1 .

[0037] The outside air enters the top cover 3 through the air inlet slot 11 under the action of negative pressure, providing oxygen for combustion.

[0038] A magnetic lock 20 is installed inside the filter adsorption bin 14 , and a magnetic plate 21 is installed on one side of the filter element mounting slide 15 for use in conjunction with the magnetic lock 20 .

[0039] When the activated carbon filter element 18 and the molecular sieve filter element 19 need to be replaced, the magnetic lock 20 is controlled to disconnect the circuit and the magnetic fixation between the magnetic lock 20 and the magnetic plate 21 is released. After the replacement is completed, the filter element mounting slide 15 is pushed back to its original position and the magnetic lock 20 is controlled to be powered on again to be magnetically fixed with the magnetic plate 21.

[0040] A push-pull handle 16 is installed on one side of the filter element installation slide 15 .

[0041] The push-pull handle 16 is used to pull and push back the filter element installation slide bracket 15 .

[0042] The side of the spray bin 23 is also connected to a valve 28 and a filling port 29 .

[0043] The spray liquid in the spray liquid tank 25 can be discharged by opening the valve 28 , and new spray liquid can be injected through the filling port 29 .

[0044] The working principle and use process of the utility model are as follows: when the device is used, a test plate sprayed with a fire-resistant varnish is loaded from one end of the device between two sets of annular guide rail circulation conveying mechanisms 6, the test plate is supported and clamped by the clamping plate 7, the annular guide rail circulation conveying mechanism 6 is controlled to drive the test plate to move above the gas burner 8, the gas burner 8 can be controlled to spray flames to heat the paint surface at the bottom of the test plate, and the fire resistance of the paint surface can be tested, and at the same time, the fan 10 is controlled to run, and the exhaust gas generated by the combustion inside the protective cover 2 is sucked into the exhaust hood 9, and at the same time, the outside air enters the top cover 3 through the air inlet slot 11 under the action of negative pressure to provide oxygen for combustion, and the exhaust gas entering the exhaust hood 9 is sent to the air duct 12, and After entering the filtration and adsorption device 13, the harmful components in the exhaust gas are adsorbed and filtered through the multiple activated carbon filter elements 18 and the molecular sieve filter elements 19 inside the filtration and adsorption chamber 14, and the first purification step is performed. Then the exhaust gas enters the spray chamber 23, and the water pump 26 pumps the spray liquid in the spray liquid tank 25 in the spray chamber 23 into the spray pipe group 24 and sprays it downward evenly. The sprayed spray liquid droplets are fully in contact with the exhaust gas entering the spray chamber 23 to further purify the exhaust gas. The purified exhaust gas is discharged through the exhaust pipe 27. By effectively purifying the exhaust gas during the test process, the harmful gases in the exhaust gas are prevented from spreading to the surroundings in large quantities, which may affect the air environment of the workplace and the health of the testers. When it is necessary to replace the activated carbon filter element 18 and the molecular sieve filter element 19, the magnetic lock 20 is controlled to disconnect the circuit, and the magnetic fixation between the magnetic lock 20 and the magnetic plate 21 is released. The filter element mounting slide 15 can be pulled out by the push-pull handle 16, and the activated carbon filter element 18 and the molecular sieve filter element 19 are pulled out from the filter element insertion slot 17 for replacement. After the replacement is completed, the filter element mounting slide 15 is pushed back to its original position, and the magnetic lock 20 is controlled to be energized again, and it can be magnetically fixed with the magnetic plate 21. The valve 28 can be opened to discharge the spray liquid in the spray liquid tank 25, and new spray liquid can be injected through the filling port 29.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A fire resistance testing device, characterized in that: The machine comprises a platform (1), wherein a protective cover (2) is installed on the top of the protective cover (2), a top cover (3) is installed on the top of the top cover (3), a guide rail mounting bracket (5) is installed below the top cover (3), a circular guide rail circulating conveying mechanism (6) is installed at the bottom of the guide rail mounting bracket (5), a gas burner (8) is installed inside the protective cover (2), the gas burner (8) is located below the circular guide rail circulating conveying mechanism (6), an exhaust hood (9) is installed above the guide rail mounting bracket (5), the exhaust hood (9) is connected to the guide rail mounting bracket (5), a fan (10) is installed inside the exhaust hood (9), an air duct (12) is connected to the top of the exhaust hood (9), one end of the air duct (12) is connected to a filtering and adsorption device (13), and the filtering and adsorption device (13) is connected to the top of the exhaust hood (9). 3) comprising a filter adsorption chamber (14), wherein a filter element mounting slide (15) is slidably mounted inside the filter adsorption chamber (14), a filter element insertion slot (17) is provided on the inner side of the filter element mounting slide (15), and the filter element insertion slot (17) is plug-in connected to multiple groups of activated carbon filter elements (18) and molecular sieve filter elements (19), a spray adsorption device (22) is provided below the filter adsorption device (13), and the spray adsorption device (22) comprises a spray chamber (23), a spray pipe group (24) is installed inside the spray chamber (23), the bottom of the spray chamber (23) is a spray liquid tank (25), a water pump (26) is provided on the side of the spray chamber (23), the water pump (26) is connected to the liquid inlet end of the spray pipe group (24), and one side of the spray adsorption device (22) is connected to the exhaust pipe (27).

2. A fire resistance testing device according to claim 1, characterized in that: A clamping plate (7) is installed at the bottom of the slider of the annular guide rail circulating conveying mechanism (6).

3. A fire resistance testing device according to claim 1, characterized in that: An air inlet slot (11) is provided on the top of the machine platform (1).

4. A fire resistance testing device according to claim 1, characterized in that: A magnetic lock (20) is installed inside the filter adsorption bin (14), and a magnetic plate (21) is installed on one side of the filter element mounting slide (15) for use in conjunction with the magnetic lock (20).

5. A fire resistance testing device according to claim 1, characterized in that: A push-pull handle (16) is installed on one side of the filter element installation slide (15).

6. A fire resistance testing device according to claim 1, characterized in that: The side of the spray bin (23) is also connected to a valve (28) and a filling port (29).

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