CN217212083U

CN217212083U - Building materials smoke density tester

Info

Publication number: CN217212083U
Application number: CN202220103069.7U
Authority: CN
Inventors: 刘燕; 刘颖才; 江婧; 刘远萍; 解仲眉
Original assignee: Yunnan Saiande Construction Engineering Quality Inspection Co ltd
Current assignee: Yunnan Saiande Construction Engineering Quality Inspection Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-16
Anticipated expiration: 2032-01-17

Abstract

The utility model relates to a building materials detects technical field, discloses a building materials smoke density tester, in order to improve the accurate nature of the test of building materials flue gas, the below of test box is provided with the sill brace support, and the inboard of test box is followed supreme burning subassembly, the determine module, the gas cleaning subassembly of having set gradually down. The utility model discloses a burning subassembly is to the butt clamp of building materials, under the sustained combustion of lighter, when the building materials burning directly over the lighter finishes, through the symmetric movement to the building materials, can make the building materials remain the combustion state all the time, improve the high efficiency of burning of building materials, and then under the synchronous incessant detection of detecting element, can carry out high efficiency, accurate test work to the building materials flue gas, and in the testing process, subside, filter and adsorb the atomizing of burning flue gas through the gas cleaning subassembly, can carry out omnidirectional filtration purification to the burning flue gas.

Description

Building materials smoke density tester

Technical Field

The utility model relates to a building materials detects technical field, specifically is a building materials smoke density tester.

Background

The building material is a general name of materials used in civil engineering and building engineering, and comprises wood, bamboo, stone, cement, concrete, metal, brick and tile, ceramic, glass, engineering plastics, composite materials and the like, during the assembly and use of the building material, the fire resistance, high temperature resistance and smoke emission rate of the building material are one of important indexes of qualified building materials, and when the smoke emission index of the building material is tested, a building material smoke density tester is usually adopted to test smoke emitted by the combustion of the building material.

Through retrieval, the Chinese patent network discloses a building material smoke density tester (publication No. CN 204694585U), which evaluates the smoke density by measuring the loss of luminous flux caused by the reflection of solid dust to light in smoke generated by material combustion, can better simulate the smoke production behavior of the material in a real fire environment, can quickly determine the smoke production rate of a basic material and predict the fire resistance of the material; the device has low cost and high precision, is suitable for the quantitative test of the smoke production performance of various materials, and can be used by various material or product manufacturing, research and development units, inspection departments and scientific research units. But this kind of device is in the use, and it is comparatively low to the combustion efficiency of building materials, and the flue gas smoothness nature that the burning produced is not enough, and the data accuracy nature that leads to the flue gas test is relatively poor, and in the use, comparatively low to the gas cleaning treatment effeciency after the burning, can't be effectual will burn gas cleaning and filter. Therefore, the person skilled in the art provides a building material smoke density tester to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a building materials smoke density tester to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a building material smoke density tester comprises a test box body, wherein a bottom support bracket is arranged below the test box body, and a combustion assembly, a detection assembly and a smoke purification assembly are sequentially arranged on the inner side of the test box body from bottom to top;

the combustion assembly comprises a combustion chamber, a first sliding door is connected to the front side of the combustion chamber, ventilation windows are symmetrically arranged at corners of the inner side of the combustion chamber, which are located at the bottom end, ash hoppers are placed at the middle position of the inner side of the combustion chamber, an igniter is arranged at the middle position of the inner side of the combustion chamber, which is located at the top end, a transmission lead screw is rotatably connected to the inner side of the combustion chamber, a guide slide rod is arranged below the transmission lead screw, transmission parts are symmetrically sleeved on the transmission lead screw and the outer side of the guide slide rod, arm force cross rods are symmetrically arranged at the front side of the transmission parts, and clamping handles are symmetrically arranged above the arm force cross rods;

the detection assembly comprises a detection chamber, the front side of the detection chamber is connected with a second sliding door, a light path transmitting end is arranged at the position, located in the middle, of one side of the detection chamber, and a light path receiving end is arranged at the position, located in the middle, of the other side of the detection chamber;

the flue gas purification subassembly is including purifying the cavity, the front side that purifies the cavity is connected with the third push-and-pull door, and the inboard that purifies the cavity is located bottom vent position department and is provided with the guiding sleeve, guiding sleeve's top is provided with the kuppe, the inboard that purifies the cavity is located middle part position department and is provided with clean ring canal, the below symmetric connection of clean ring canal has atomizer, the inboard that purifies the cavity is located top position department and has set gradually HEPA filter screen, active carbon filter screen from supreme down, and the upper portion vent position department that purifies the cavity is provided with negative-pressure air fan.

As a further aspect of the present invention: one end of the transmission screw rod is provided with a transmission worm wheel, one side, close to the transmission worm wheel, of the upper portion of the transmission screw rod is provided with a transmission motor, and the output end of the transmission motor is provided with a transmission worm meshed with the transmission worm wheel.

As a further aspect of the present invention: the transmission screw rod takes a center line as a boundary, positive and negative screw teeth which are symmetrically arranged are respectively arranged on two sides of the center line, and the transmission screw rod is symmetrically sleeved with the transmission part through the positive and negative screw teeth.

As a further aspect of the present invention: the front side end face of the first sliding door is provided with a transparent observation window, the transparent observation window is of a circular structure, a rotary hand wheel is arranged at the position, located at the middle part, of the front side of the transparent observation window, and a cleaning wiper is arranged on the end face, penetrating through the transparent observation window, of the output end of the rotary hand wheel.

As a further aspect of the present invention: the flow guide sleeve is of a conical structure, and the flow guide cover is of an arc structure.

As a further aspect of the present invention: the number of the atomizing spray heads is not less than eight groups, and the atomizing spray heads are arranged in a ring shape and are symmetrical relative to the circle center of the cleaning ring pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a burning subassembly is to the butt clamp of building materials, under the sustained combustion of lighter, when the building materials burning directly over the lighter finishes, through the symmetric movement to the building materials, can make the building materials remain the combustion state all the time, improve the high efficiency of burning of building materials, and then under the synchronous incessant detection of detecting element, can carry out high efficiency, accurate test work to the building materials flue gas, and in the testing process, subside, filter and adsorb the atomizing of burning flue gas through the gas cleaning subassembly, can carry out omnidirectional filtration purification to the burning flue gas.

Drawings

FIG. 1 is a schematic structural view of a building material smoke density tester;

FIG. 2 is a schematic view of the internal structure of a building material smoke density tester;

fig. 3 is an enlarged schematic view of a building material smoke density tester at a point a in fig. 2.

In the figure: 1. testing the box body; 2. a bottom support bracket; 3. a first sliding door; 4. a second sliding door; 5. a third sliding door; 6. a transparent viewing window; 7. rotating a hand wheel; 8. cleaning the wiper; 9. a combustion chamber; 10. a detection chamber; 11. a decontamination chamber; 12. a ventilation window; 13. an ash hopper; 14. an igniter; 15. a guide slide bar; 16. a transmission screw rod; 17. an optical path transmitting end; 18. an optical path receiving end; 19. a flow directing sleeve; 20. a pod; 21. an atomizing spray head; 22. cleaning a ring pipe; 23. a HEPA filter screen; 24. an activated carbon filter screen; 25. a negative pressure fan; 26. a drive motor; 27. a drive worm; 28. a drive worm gear; 29. a transmission member; 30. an arm force cross bar; 31. a clamp handle.

Detailed Description

Referring to fig. 1-3, in the embodiment of the present invention, a building material smoke density tester comprises a testing box 1, a bottom support frame 2 is disposed below the testing box 1, a combustion assembly, a detection assembly, and a smoke purification assembly are sequentially disposed on the inner side of the testing box 1 from bottom to top, the combustion assembly comprises a combustion chamber 9, a first sliding door 3 is connected to the front side of the combustion chamber 9, ventilation windows 12 are symmetrically disposed on the inner side of the combustion chamber 9 at the bottom corner positions, an ash hopper 13 is disposed on the inner side of the combustion chamber 9 at the bottom middle position, an igniter 14 is disposed on the inner side of the combustion chamber 9 at the middle position, a transmission screw 16 is rotatably connected to the inner side of the combustion chamber 9 at the top position, a guide slide rod 15 is disposed below the transmission screw 16, and a transmission member 29 is symmetrically sleeved on the transmission screw 16 and the outer side of the guide slide rod 15, an arm force cross rod 30 is symmetrically arranged on the front side of a transmission piece 29, clamping handles 31 are symmetrically arranged above the arm force cross rod 30, a transmission worm wheel 28 is arranged at one end of a transmission screw rod 16, a transmission motor 26 is arranged on one side, close to the transmission worm wheel 28, above the transmission screw rod 16, the output end of the transmission motor 26 is provided with a transmission worm 27 meshed with the transmission worm wheel 28, the transmission screw rod 16 takes a central line as a boundary, a positive thread and a negative thread which are symmetrically arranged are respectively arranged on two sides of the central line, the transmission screw rod 16 is symmetrically sleeved with the transmission piece 29 through the positive thread and the negative thread, when the smoke of the building material is tested, a worker clamps the building material to be tested on the clamping handles 31, during clamping and placing, the transmission motor 26 works to drive the transmission worm 27 to rotate, the transmission screw rod 16 is driven to rotate through the meshing transmission of the transmission worm 27 and the transmission worm wheel 28, and when the transmission screw rod 16 rotates, the transmission piece 29 is pushed to symmetrically slide on the guide slide rod 15 through the positive and negative screw threads which are symmetrically arranged with each other, the spacing distance between the clamp handles 31 is adjusted, the building materials are clamped and positioned, and after the clamping and positioning of the building materials are finished, the igniter 14 works to burn the building materials.

The detection assembly comprises a detection chamber 10, the front side of the detection chamber 10 is connected with a second sliding door 4, one side of the detection chamber 10 is positioned at the middle position and is provided with a light path transmitting end 17, the other side of the detection chamber 10 is positioned at the middle position and is provided with a light path receiving end 18, the front side end face of the first sliding door 3 is provided with a transparent observation window 6, the transparent observation window 6 is of a circular structure, the front side of the transparent observation window 6 is positioned at the middle position and is provided with a rotary hand wheel 7, the output end of the rotary hand wheel 7 penetrates through the end face of the transparent observation window 6 and is provided with a cleaning wiper 8, in the process of burning the building materials, a worker can observe the burning condition of the building materials through the transparent observation window 6, when smoke adheres to the transparent observation window 6, the worker can rotate the rotary hand wheel 7 to drive the cleaning wiper 8 to rotate to clean the transparent observation window 6, and when the building material close to the igniter 14 is burnt, the transmission motor 26 can be controlled to continue to work to push the building material to move in a folding manner, so that the building material is always positioned above the igniter 14, the burning efficiency is ensured, the smoke generated by burning is sucked and adsorbed by the negative pressure of the negative pressure fan 25 and flows upwards, and the smoke density is tested through the light path emitting end 17 and the light path receiving end 18.

The flue gas purification assembly comprises a purification chamber 11, a third sliding door 5 is connected to the front side of the purification chamber 11, a flow guide sleeve 19 is arranged at the position, located at a bottom vent, of the inner side of the purification chamber 11, a flow guide cover 20 is arranged above the flow guide sleeve 19, a cleaning ring pipe 22 is arranged at the position, located at the middle part, of the inner side of the purification chamber 11, atomization nozzles 21 are symmetrically connected to the lower part of the cleaning ring pipe 22, an HEPA filter screen 23 and an active carbon filter screen 24 are sequentially arranged at the position, located at the top end, of the inner side of the purification chamber 11 from bottom to top, a negative pressure fan 25 is arranged at the position of an upper vent of the purification chamber 11, the flow guide sleeve 19 is of a conical structure, the flow guide cover 20 is of an arc structure, the number of the atomization nozzles 21 is not less than eight groups, the atomization nozzles 21 are annularly and symmetrically arranged relative to the circle center of the cleaning ring pipe 22, and flue gas after a combustion test continuously flows upwards through the flow guide sleeve 19, under the separation and the flow guide of the air guide sleeve 20, the cleaning water diffuses towards the edge of the purification chamber 11, the synchronous cleaning water is conveyed into the atomizing spray head 21 through the cleaning ring pipe 22, the atomizing spray head 21 atomizes and sprays the cleaning water, the cleaning water is combined with the smoke to be settled, and the atomized and settled smoke is pumped out by the negative pressure fan 25 and discharged after being filtered again and adsorbed and purified by the HEPA filter screen 23 and the activated carbon filter screen 24.

The utility model discloses a theory of operation is: when the smoke of the building material is tested, a worker clamps the building material to be tested on the clamp handle 31, during clamping, the transmission motor 26 works to drive the transmission worm 27 to rotate, the transmission worm 27 is driven to rotate through meshing transmission of the transmission worm 27 and the transmission worm wheel 28, the transmission screw rod 16 is driven to rotate, meanwhile, the transmission piece 29 is pushed to symmetrically slide on the guide slide rod 15 through the positive and negative screw teeth which are symmetrically arranged with each other, the spacing distance between the clamp handles 31 is adjusted to clamp and position the building material, after clamping and positioning the building material, the igniter 14 works to burn the building material, during burning of the building material, the worker can observe the burning condition of the building material through the transparent observation window 6, and when burning close to the igniter 14 is finished, the transmission motor 26 can be controlled to continue working to push the building material to be butted and moved, the building materials are always positioned above the igniter 14, the combustion efficiency is ensured, smoke generated by combustion flows upwards under the negative pressure suction of the negative pressure fan 25, the smoke density is tested through the light path transmitting end 17 and the light path receiving end 18, the smoke after further combustion test continuously flows upwards through the flow guide sleeve 19, and diffuses towards the edge of the purification chamber 11 under the separation and guide of the flow guide cover 20, synchronous cleaning water is conveyed into the atomizing spray head 21 through the cleaning ring pipe 22, the atomizing spray head 21 atomizes and sprays the cleaning water, the cleaning water is combined with the smoke for sedimentation, and the smoke after the atomization and sedimentation is discharged by the negative pressure fan 25 after being filtered, adsorbed and purified again through the HEPA filter screen 23 and the activated carbon filter screen 24.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The building material smoke density tester comprises a testing box body (1), and is characterized in that a bottom support bracket (2) is arranged below the testing box body (1), and a combustion assembly, a detection assembly and a smoke purification assembly are sequentially arranged on the inner side of the testing box body (1) from bottom to top;

the combustion assembly comprises a combustion chamber (9), the front side of the combustion chamber (9) is connected with a first sliding door (3), and the inner side of the combustion chamber (9) is symmetrically provided with ventilation windows (12) at the corner positions of the bottom end, an ash hopper (13) is arranged at the middle position of the bottom end of the inner side of the combustion chamber (9), an igniter (14) is arranged at the middle position of the inner side of the combustion chamber (9), the inner side of the combustion chamber (9) is rotatably connected with a transmission screw rod (16) at the top end position, a guide slide rod (15) is arranged below the transmission screw rod (16), and the transmission screw rod (16) and the outer side of the guide slide rod (15) are symmetrically sleeved with transmission pieces (29), an arm strength cross rod (30) is symmetrically arranged on the front side of the transmission piece (29), and clamping handles (31) are symmetrically arranged above the arm strength cross rod (30);

the detection assembly comprises a detection chamber (10), the front side of the detection chamber (10) is connected with a second sliding door (4), a light path transmitting end (17) is arranged at the position, located at the middle, of one side of the detection chamber (10), and a light path receiving end (18) is arranged at the position, located at the middle, of the other side of the detection chamber (10);

the flue gas purification subassembly is including purifying cavity (11), the front side of purifying cavity (11) is connected with third push-and-pull door (5), and the inboard of purifying cavity (11) is located bottom vent position department and is provided with guide sleeve (19), the top of guide sleeve (19) is provided with kuppe (20), the inboard of purifying cavity (11) is located middle part position department and is provided with clean ring canal (22), the below symmetric connection of clean ring canal (22) has atomizer (21), the inboard of purifying cavity (11) is located top position department and follows supreme HEPA filter screen (23), the active carbon filter screen (24) of having set gradually down from the top, and the upper portion vent position department of purifying cavity (11) is provided with negative-pressure air fan (25).

2. The building material smoke density tester according to claim 1, wherein a transmission worm wheel (28) is arranged at one end of the transmission screw rod (16), a transmission motor (26) is arranged at one side, close to the transmission worm wheel (28), above the transmission screw rod (16), and a transmission worm (27) meshed with the transmission worm wheel (28) is arranged at the output end of the transmission motor (26).

3. A building material smoke density tester according to claim 1, wherein the transmission screw rod (16) is bounded by a central line, and both sides of the central line are respectively provided with a positive thread and a negative thread which are symmetrically arranged with each other, and the transmission screw rod (16) is symmetrically sleeved with the transmission member (29) through the positive thread and the negative thread.

4. The building material smoke density tester according to claim 1, wherein a transparent observation window (6) is arranged on the front end face of the first sliding door (3), the transparent observation window (6) is of a circular structure, a rotating hand wheel (7) is arranged at the middle position of the front side of the transparent observation window (6), and a cleaning wiper (8) is arranged at the output end of the rotating hand wheel (7) through the end face of the transparent observation window (6).

5. A building material smoke density tester according to claim 1 wherein the air guide sleeve (19) is of a conical configuration and the air guide sleeve (20) is of an arcuate configuration.

6. A building material smoke density tester according to claim 1, wherein the number of the atomizing nozzles (21) is not less than eight groups, and the atomizing nozzles (21) are arranged in a ring shape symmetrically with respect to the center of the cleaning ring pipe (22).