Thermal radiation tester for flooring material

Abstract

The utility model discloses a paving material thermal radiation tester which comprises a test box and a smoke exhaust pipe arranged at the top of the test box, a filter box is arranged on the rear side of the test box, an upper cover is installed at the top of the filter box, a connecting pipe is connected between the test box and the smoke exhaust pipe, and a communicating pipe is fixedly connected to one side of the filter box. Four inserting plates of circular ring structures are fixedly connected to the side, opposite to the communicating pipe, of the inner surface of the filter box, an inserting groove is formed between every two adjacent inserting plates, a primary filter screen, an activated carbon screen and an efficient filter screen are inserted into the inserting grooves, and the activated carbon screen is arranged between the primary filter screen and the efficient filter screen. The communicating pipe communicates with the interior of the efficient filter screen, the primary filter screen is located on the outermost layer, and a movable plate is arranged on the side, away from the communicating pipe, in the filter box. By means of the structure, it is ensured that harmful substances in smoke can be filtered layer by layer, the finally discharged smoke is purer, and pollution to the surrounding environment is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to floor material combustion performance test technical field, especially floor material heat radiation tester. BACKGROUND

[0002] When the fire occurs, the combustion characteristics and the heat radiation of the floor material can directly affect the spread speed of the fire, the rise of the environmental temperature and the safety of the personnel's escape. Therefore, accurately determining the heat radiation characteristics of the floor material in the combustion process has important significance for the fire risk assessment and the fire prevention design.

[0003] In the prior art, through the retrieval, it is found that the Chinese patent discloses "floor material heat radiation tester", and the application number is "201920325422.4". The above patent mainly includes a test assembly, and the test assembly includes a test box and a smoke density measuring device. The test box includes a box door, a box body and a smoke cover. The smoke density measuring device includes an optical assembly and a shielding assembly. The optical assembly includes a light emitting unit and a light receiving unit. The light emitting unit is used for emitting a measuring light beam, and the light receiving unit is used for receiving the measuring light beam emitted by the light emitting unit. The light emitting unit and the light receiving unit are arranged on the upper part of the box body or the smoke cover. The shielding assembly is used for shielding the measuring light beam emitted by the light emitting unit and includes a shielding part, a driving part and a shielding control part. The driving part is drivingly connected with the shielding part. The shielding part can be switched between the shielding position and the non-shielding position under the control of the shielding control part and the driving of the driving part. Although the above test instrument can realize the automatic calibration during the smoke density measurement, after the exhaust pipe is arranged to exhaust the flue gas, the flue gas generated during the test process cannot be filtered. Since the floor material can release a plurality of harmful substances during the combustion process, including volatile organic compounds, particulate matters and the like, if the flue gas is directly discharged without treatment, the surrounding environment and the laboratory air quality can be polluted. Not only the safety and the reliability of the test environment can be affected, but also the health of the experimental personnel can be threatened. Therefore, the utility model provides the floor material heat radiation tester to solve the problems in the above background technology. UTILITY MODEL CONTENT

[0004] The utility model aims at providing the floor material heat radiation tester, ensures that the harmful substances in the flue gas can be filtered layer by layer, so that the finally discharged flue gas is more pure, and the pollution to the surrounding environment is greatly reduced.

[0005] In order to achieve the above object, the paving material thermal radiation tester comprises a test box and a smoke exhaust pipe arranged on the top of the test box, a filter box is arranged on the rear side of the test box, an upper cover is arranged on the top of the filter box, a connecting pipe is connected between the test box and the smoke exhaust pipe, a communication pipe is fixedly connected to one side of the filter box, four ring structure plug-in plates are fixedly connected to the inner surface of the filter box and opposite to the communication pipe, plug-in grooves are formed between every two adjacent plug-in plates, a primary filter screen, an activated carbon screen and a high efficiency filter screen are respectively plugged into the plug-in grooves, the activated carbon screen is arranged between the primary filter screen and the high efficiency filter screen, the communication pipe is communicated with the inside of the high efficiency filter screen, the primary filter screen is located at the outermost layer, a movable plate is arranged on the side of the filter box and away from the communication pipe, four elastic supporting assemblies are uniformly arranged on the side of the movable plate and away from the primary filter screen, and the elastic supporting assemblies are used for pushing the movable plate to be attached to the one end of the primary filter screen, the activated carbon screen and the high efficiency filter screen and away from the communication pipe.

[0006] According to the paving material thermal radiation tester, the elastic supporting assembly comprises a fixed rod slidingly connected to the inside of the movable plate, a spring sleeved on the outside of the fixed rod and an end plate fixedly connected to the one end of the fixed rod and close to the primary filter screen, and the one end of the fixed rod and opposite to the end plate is fixedly connected to the inner surface of the filter box.

[0007] According to the paving material thermal radiation tester, the smoke exhaust pipe is provided with a wind volume adjusting assembly, the wind volume adjusting assembly comprises a valve plate movably connected to the inside of the smoke exhaust pipe, a mounting seat fixedly connected to one side of the smoke exhaust pipe, a rotating shaft rotatably connected to the inside of the mounting seat, a fixed plate fixedly connected to one side of the smoke exhaust pipe and located below the rotating shaft, a rotating rod rotatably connected to the inside of the fixed plate, a worm wheel fixedly connected to the one end of the rotating shaft and close to the rotating rod and a worm fixedly connected to the top end of the rotating rod and meshingly connected with the worm wheel, and the one end of the rotating shaft and opposite to the worm wheel is fixedly connected with the valve plate.

[0008] According to the paving material thermal radiation tester, the side of the filter box close to the communication pipe is provided with a fan, the air outlet of the fan is connected with a smoke outlet pipe, and the communication pipe is connected with the air inlet of the fan.

[0009] According to the paving material thermal radiation tester, the two ends of the primary filter screen, the activated carbon screen and the high efficiency filter screen are all provided with sealing rings.

[0010] According to the paving material thermal radiation tester, the upper cover is connected with the filter box through bolts, and the bottom end of the rotating rod extends to the side close to the middle of the test box.

[0011] The paving material thermal radiation tester has the following beneficial effects:

[0012] 1、compared with the prior art, the floor material thermal radiation tester, the primary filter screen, the activated carbon screen and the high efficiency filter screen form a filter element, the flue gas is discharged after passing through the filter element, which ensures that the harmful substances in the flue gas can be filtered layer by layer, so that the finally discharged flue gas is more pure, and the pollution to the surrounding environment is greatly reduced.

[0013] 2、compared with the prior art, the floor material thermal radiation tester, the filter element adopts modular design, and through the setting of the movable plate, the elastic support assembly and the plug-in plate, quick cleaning or replacement is facilitated, and the maintenance cost is reduced.

[0014] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings and examples;

[0016] Figure 1 It is the overall structure schematic diagram of the floor material thermal radiation tester of the utility model;

[0017] Figure 2 It is the first cross-sectional structure schematic diagram of the filter box inside the floor material thermal radiation tester of the utility model;

[0018] Figure 3 It is the second cross-sectional structure schematic diagram of the filter box inside the floor material thermal radiation tester of the utility model;

[0019] Figure 4 It is the air volume adjusting assembly structure schematic diagram of the floor material thermal radiation tester of the utility model.

[0020] LEGEND:

[0021] 1, test box; 2, smoke exhaust pipe; 3, filter box; 4, connecting pipe; 5, upper cover; 6, fan; 7, communication pipe; 8, smoke exhaust pipe; 9, movable plate; 10, spring; 11, fixed rod; 12, end plate; 13, primary filter screen; 14, activated carbon screen; 15, high efficiency filter screen; 16, sealing ring; 17, plug-in plate; 18, valve plate; 19, mounting seat; 20, rotating shaft; 21, fixed plate; 22, worm gear; 23, worm; 24, rotating rod. DETAILED DESCRIPTION

[0022] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as the limitation of the protection scope of the present application.

[0023] Referring to Figures 1-4 The utility model discloses floor material heat radiation measuring instrument, it includes test box 1 and is located test box 1 top's smoke exhaust pipe 2, test box 1's rear side is equipped with filter box 3, and the upper cover 5 is installed on filter box 3 top through bolt, the dismounting of upper cover 5 is convenient, to satisfy the cleaning and replacement operation of inside filter core. The connecting pipe 4 is connected between test box 1 and smoke exhaust pipe 2, and one side of filter box 3 is fixedly connected with the communicating pipe 7, and one side of filter box 3 close to communicating pipe 7 is equipped with fan 6, and the air outlet of fan 6 is connected with the smoke pipe 8, and the air inlet of communicating pipe 7 is connected with fan 6, so that the flue gas can be discharged after passing through filter box 3, which greatly reduces the pollution to the environment. Four circular ring structure's plug-in board 17 are fixedly connected to the inner surface of filter box 3 and the side opposite to communicating pipe 7, and the plug-in groove is formed between the adjacent two plug-in boards 17, and the primary filter screen 13, the activated carbon screen 14 and the high efficiency filter screen 15 are respectively inserted in the plug-in groove, the activated carbon screen 14 is arranged between the primary filter screen 13 and the high efficiency filter screen 15, the inside of communicating pipe 7 and the high efficiency filter screen 15 are communicated, and the primary filter screen 13 is located the outermost layer.

[0024] The smoke exhaust pipe 2 leads out the flue gas generated by combustion and is transported to the inside of filter box 3 through the connecting pipe 4, the primary filter screen 13, the activated carbon screen 14 and the high efficiency filter screen 15 are arranged in the inside of filter box 3 and form a filter filter core, and the flue gas is discharged through the communicating pipe 7 after passing through the filter core. At this time, the primary filter screen 13 is located the outermost layer, adopts the metal screen or the high polymer material screen, effectively blocks the large particle impurities, the activated carbon screen 14 is located the middle layer, utilizes the high adsorption performance of activated carbon, mainly is used for adsorbing the harmful substances in gas, the high efficiency filter screen 15 uses HEPA high efficiency filter membrane, can effectively purify the harmful substances in air, plays the role of further purifying gas. Ensure that the harmful substances in the flue gas can be filtered layer by layer, so that the finally discharged flue gas is more pure, greatly reduces the pollution to the surrounding environment.

[0025] The side far away from communicating pipe 7 in the inside of filter box 3 is equipped with the movable plate 9, and the side far away from the primary filter screen 13 of movable plate 9 is evenly equipped with four elastic support assemblies, the elastic support assembly is used to push movable plate 9 and the primary filter screen 13, the activated carbon screen 14 and the high efficiency filter screen 15 far away from the one end of communicating pipe 7 and adhere, and the elastic support assembly includes the fixed rod 11 slidingly connected in the inside of movable plate 9, the spring 10 of sleeve set in the outside of fixed rod 11 and the end plate 12 of fixed connection in the one end of fixed rod 11 close to the primary filter screen 13, and the one end opposite to fixed rod 11 and end plate 12 is fixedly connected with the inner surface of filter box 3.

[0026] After the filter cartridge is inserted into the insertion slot for initial positioning, the spring 10 pushes the movable plate 9 to abut against the end of the filter cartridge, so that clamping and fixing effects can be achieved, the sealing effect of the filter cartridge is ensured, and the stability of the filter cartridge during use is ensured; after the movable plate 9 is separated from the filter cartridge, the filter cartridge can be freely disassembled, the primary filter screen 13, the activated carbon screen 14 and the high-efficiency filter screen 15 can be conveniently cleaned or replaced, and the modular design reduces the maintenance cost.

[0027] The smoke exhaust pipe 2 is provided with a wind volume adjusting assembly, the wind volume adjusting assembly comprises a valve plate 18 movably connected to the inside of the smoke exhaust pipe 2, a mounting seat 19 fixedly connected to one side of the smoke exhaust pipe 2, a rotating shaft 20 rotatably connected to the inside of the mounting seat 19, a fixed plate 21 fixedly connected to one side of the smoke exhaust pipe 2 and located below the rotating shaft 20, a rotating rod 24 rotatably connected to the inside of the fixed plate 21, a worm wheel 22 fixedly connected to one end of the rotating shaft 20 close to the rotating rod 24 and a worm 23 fixedly connected to the top end of the rotating rod 24 and meshed with the worm wheel 22, one end of the rotating shaft 20 opposite to the worm wheel 22 is fixedly connected with the valve plate 18, the bottom end of the rotating rod 24 extends to one side close to the middle of the test box 1, and the bottom of the rotating rod 24 is low in height, so that personnel can conveniently operate.

[0028] By rotating the rotating rod 24, the worm 23 and the worm wheel 22 can be driven to mesh, so that the rotating shaft 20 and the valve plate 18 are driven to rotate, and the accurate adjustment of the wind volume is realized. The smoke gas is a direct product after the floor material is burned, and the composition, concentration and emission speed and other characteristics can reflect the combustion performance of the material, such as the combustion rate and the heat release rate. By adjusting the speed of the gas discharged from the smoke exhaust pipe 2, it can be avoided that the smoke gas generated by combustion is discharged too fast outside the test box 1 to affect the accuracy of the determination of the heat radiation.

[0029] In order to ensure the sealing performance and filtering effect of the filter cartridge, the two ends of the primary filter screen 13, the activated carbon screen 14 and the high-efficiency filter screen 15 are provided with sealing rings 16.

[0030] Working principle: The smoke exhaust pipe 2 leads out the smoke gas generated by combustion and conveys it to the inside of the filter box 3 through the connecting pipe 4, the primary filter screen 13, the activated carbon screen 14 and the high-efficiency filter screen 15 are arranged in the filter box 3 to form a filter cartridge, and the smoke gas passes through the filter cartridge and is discharged through the communication pipe 7. At this time, the primary filter screen 13 is located at the outermost layer, uses a metal screen or a high polymer material screen, and effectively blocks large-particle impurities; the activated carbon screen 14 is located at the middle layer, uses the high adsorption performance of activated carbon, and is mainly used for adsorbing harmful substances in the gas; the high-efficiency filter screen 15 uses a HEPA high-efficiency filter membrane, can effectively purify harmful substances in the air, and plays a role in further purifying the gas. It is ensured that harmful substances in the smoke gas can be filtered layer by layer, so that the finally discharged smoke gas is more pure, and the pollution to the surrounding environment is greatly reduced.

[0031] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A flooring material thermal radiation measuring instrument, characterized by, The utility model provides a test box, which comprises a test box (1) and a smoke exhaust pipe (2) arranged on the top of the test box (1), the rear side of the test box (1) is provided with a filter box (3), the top of the filter box (3) is provided with an upper cover (5), the test box (1) and the smoke exhaust pipe (2) are connected with a connecting pipe (4), one side of the filter box (3) is fixedly connected with a communicating pipe (7), the inner surface of the filter box (3) and the side, opposite to the communicating pipe (7), are fixedly connected with four circular ring structure plug-in plates (17), two adjacent plug-in plates (17) form a plug-in slot, the plug-in slot is respectively plugged with a primary filter screen (13), an activated carbon screen (14) and a high efficiency filter screen (15), the activated carbon screen (14) is arranged between the primary filter screen (13) and the high efficiency filter screen (15), the communicating pipe (7) is communicated with the inside of the high efficiency filter screen (15), the primary filter screen (13) is located at the outermost layer, the side, away from the communicating pipe (7), of the inside of the filter box (3) is provided with a movable plate (9), the side, away from the primary filter screen (13), of the movable plate (9) is uniformly provided with four elastic supporting assemblies, and the elastic supporting assemblies are used for pushing the movable plate (9) to be attached to one end, away from the communicating pipe (7), of the primary filter screen (13), the activated carbon screen (14) and the high efficiency filter screen (15).

2. The flooring material heat emittance gauge according to claim 1, wherein The elastic supporting assembly comprises a fixed rod (11) slidably connected to the inside of the movable plate (9), a spring (10) sleeved on the outside of the fixed rod (11) and an end plate (12) fixedly connected to one end of the fixed rod (11) close to the primary filter screen (13), and the end, opposite to the end plate (12), of the fixed rod (11) is fixedly connected to the inner surface of the filter box (3).

3. The flooring material heat emittance gauge according to claim 2, wherein The smoke exhaust pipe (2) is provided with a wind volume adjusting assembly, the wind volume adjusting assembly comprises a valve plate (18) movably connected to the inside of the smoke exhaust pipe (2), a mounting seat (19) fixedly connected to one side of the smoke exhaust pipe (2), a rotating shaft (20) rotatably connected to the inside of the mounting seat (19), a fixed plate (21) fixedly connected to one side of the smoke exhaust pipe (2) and located below the rotating shaft (20), a rotating rod (24) rotatably connected to the inside of the fixed plate (21), a worm wheel (22) fixedly connected to one end of the rotating shaft (20) close to the rotating rod (24) and a worm (23) fixedly connected to the top end of the rotating rod (24) and meshedly connected with the worm wheel (22), and the end, opposite to the worm wheel (22), of the rotating shaft (20) is fixedly connected with the valve plate (18).

4. The flooring material heat emittance gauge according to claim 3, wherein The side, close to the communicating pipe (7), of the filter box (3) is provided with a fan (6), the air outlet of the fan (6) is connected with a smoke outlet pipe (8), and the communicating pipe (7) is connected with the air inlet of the fan (6).

5. The flooring material heat emittance gauge according to claim 4, wherein The two ends of the primary filter screen (13), the activated carbon screen (14) and the high efficiency filter screen (15) are provided with sealing rings (16).

6. The flooring material heat emittance gauge according to claim 3, wherein The upper cover (5) is connected with the filter box (3) through bolts, and the bottom end of the rotating rod (24) extends to one side close to the middle of the test box (1).

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