CN217929769U - Experimental furnace for flame resistance of building material - Google Patents
Experimental furnace for flame resistance of building material Download PDFInfo
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- CN217929769U CN217929769U CN202221964570.9U CN202221964570U CN217929769U CN 217929769 U CN217929769 U CN 217929769U CN 202221964570 U CN202221964570 U CN 202221964570U CN 217929769 U CN217929769 U CN 217929769U
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Abstract
The utility model relates to a building material fire resistance experimental furnace, including air supply fan (1), supply-air duct (2), square flue (4), electric heat couple (5), sample support (6), combustor (7), pressure differential inductor (10), T type differential pressure pipe (11) and furnace body (13), air supply fan (1) connect furnace body (13) of being constituteed by outer oven (8) and interior oven (9) through supply-air duct (2), supply-air duct (2) middle section is equipped with orifice plate flowmeter (3), oven (9) below in supply-air duct (2) pass outer oven (8) intercommunication, interface top fixed mounting stainless steel mesh frame (12) of oven (9) in supply-air duct (2) intercommunication, interior oven (9) inboard stainless steel mesh frame (12) top fixed mounting sample support (6), can effectively improve equipment stability, reduce the equipment maintenance time, make equipment can long-term stable operation.
Description
Technical Field
The utility model relates to a building material test equipment specifically is building material fire resistance nature experiment stove.
Background
The flame-retardant test furnace for building material is a scientific instrument used in the field of material science. The building material fire resistance tester is suitable for judging whether the building material has combustibility, and all materials which are qualified by a combustion furnace test and can pass a building material flammability test can be determined as fire-resistant building materials.
The existing test furnaces all adopt a hot-ball type anemoscope to measure the wind speed, and the hot-ball type anemoscope has the problem of easy damage and needs to be frequently replaced; meanwhile, in the existing testing equipment, the fuel gas and the circuit are installed in a mixed mode, and if the fuel gas has the problem of air leakage, the fuel gas is easily ignited by electric sparks generated by the circuit; at last, the air current stabilizer mainly adopts the wire netting to support the glass fiber felt, and the wire netting can be corroded by continuously releasing corrosive gas in the combustion test process, so that the wire netting is damaged quickly, and needs to be changed continuously, the problems undoubtedly increase the maintenance difficulty of the equipment, and the working time of the test equipment is severely limited.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a building material fire resistance nature experiment stove can effectively improve equipment stability, reduces the plant maintenance time, makes the operation that equipment can be stable for a long time.
In order to achieve the above object, the utility model discloses a following technical scheme realizes: the experimental furnace comprises an air supply fan, an air supply pipeline, a pore plate flowmeter, a square flue, a thermocouple, a sample support, a burner, an outer furnace wall, an inner furnace wall, a pressure difference sensor, a T-shaped differential pressure pipe, a stainless steel mesh frame and a furnace body, wherein the air supply fan is connected with the furnace body formed by combining the outer furnace wall and the inner furnace wall through the air supply pipeline, the pore plate flowmeter is arranged in the middle section of the air supply pipeline, the thermal ball anemometer is replaced by the pore plate flowmeter, the maintenance time caused by damage of the thermal ball anemometer can be effectively reduced, the stability of the device is improved, the air supply pipeline penetrates through the outer furnace wall to be communicated with the lower part of the inner furnace wall, the stainless steel mesh frame is fixedly installed above an interface of the air supply pipeline communicated with the inner furnace wall, the whole corrosion resistance of the frame can be effectively improved by replacing a frame made of a past iron wire with the stainless steel frame, the service life of the frame is prolonged, the sample support is fixedly installed above the stainless steel mesh frame on the inner side of the inner furnace wall, the bottom of the sample support is fixedly installed with the burner, the upper part of the inner furnace wall is connected with the square flue, the square flue extends out of the square flue from the upper part of the square flue, the square flue is connected with the surface of the gas distribution cabinet through a safety control circuit, and is respectively connected with the gas distribution cabinet through a safety control circuit, and a safety control circuit.
As the utility model discloses a further improvement scheme, outer oven and interior oven adopt 304 steel construction combustion chambers, the inner wall is corrosion resistant plate, steel sheet thickness 3mm is equipped with the observation window at last furnace gate and combustion chamber back wall.
As a further improvement of the utility model, a heat insulation layer is arranged between the outer furnace wall and the inner furnace wall.
As a further improvement of the utility model, the stainless steel mesh frame is made of stainless steel.
As a further improvement of the utility model, the upper part of the stainless steel mesh frame is paved with a plurality of layers of glass fiber felts.
As a further improvement of the utility model, the combustor below be provided with the air current stabilizer, the air current stabilizer is the square frame that the angle steel was made.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage: compared with a conventional test furnace, through replacing hot-ball anemoscope for orifice plate flowmeter (3), can effectively reduce the maintenance time that leads to because of hot-ball anemoscope damages, lifting means stability, the frame replacement through iron wire preparation in the past is the stainless steel frame, can effectively promote the whole corrosion resistance of frame, thereby promote the life of frame, through part gas and circuit, equipment safety has effectively been promoted, thereby at the improve equipment stability on the whole, reduce the equipment maintenance time, make the operation that equipment can be stable for a long time.
Drawings
FIG. 1 is a front view of a fire resistance test furnace for construction materials;
FIG. 2 is a side view of FIG. 1;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
in the figure: 1. the device comprises an air supply fan, 2, an air supply pipeline, 3, a pore plate flowmeter, 4, a square flue, 5, a thermocouple, 6, a sample support, 7, a combustor, 8, an outer furnace wall, 9, an inner furnace wall, 10, a differential pressure sensor, 11, a T-shaped differential pressure pipe, 12, a stainless steel mesh frame and 13 a furnace body.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the experimental furnace for flame retardancy of building materials comprises an air supply fan 1, an air supply pipeline 2, a pore plate flowmeter 3, a square flue 4, an electric thermocouple 5, a sample support 6, a burner 7, an outer furnace wall 8, an inner furnace wall 9, a differential pressure sensor 10, a T-shaped differential pressure pipe 11, a stainless steel mesh frame 12 and a furnace body 13, wherein the air supply fan 1 is connected with the furnace body 13 formed by combining the outer furnace wall 8 and the inner furnace wall 9 through the air supply pipeline 2, the pore plate flowmeter 3 is arranged in the middle section of the air supply pipeline 2, and the thermal ball anemometer is replaced by the pore plate flowmeter 3, so that the maintenance time caused by damage of the thermal ball anemometer can be effectively reduced, and the stability of the device is improved.
The air supply pipeline 2 penetrates through the outer furnace wall 8 to be communicated with the lower portion of the inner furnace wall 9, the stainless steel mesh frame 12 is fixedly installed above an interface of the inner furnace wall 9 communicated with the air supply pipeline 2, the frame made of iron wires in the past is replaced by the stainless steel frame, the overall corrosion resistance of the frame can be effectively improved, and therefore the service life of the frame is prolonged.
A sample support 6 is fixedly installed above a stainless steel mesh frame 12 on the inner side of an inner furnace wall 9, a combustor 7 is fixedly installed at the bottom of the sample support 6, the upper portion of the inner furnace wall 9 is connected with a square flue 4, the square flue 4 extends out of the upper portion of an outer furnace wall 8, through holes are formed in the four walls of the middle portion of the square flue 4, a thermocouple 5 is installed, the thermocouple 5 adopts a U.S. OMEGA K-type armored thermocouple with the diameter of 1.5mm, and the accuracy is two-stage. A through hole is formed in the surface of one side of the middle of a square flue 4 and provided with a T-shaped differential pressure pipe 11, the surface of the upper portion of an outer furnace wall 8 is connected with a differential pressure sensor 10 through screws, a furnace body 13 is respectively connected with a gas distribution box and a control cabinet through pipelines, the safety of equipment is effectively improved by separating gas from a circuit, the gas distribution box and the control cabinet are provided with a high-precision MFC (micro-fuel cell) to control the feeding amount of the gas and the air, and the real-time flow value can be digitally controlled and displayed through an upper computer and mixed through a venturi, so that a stable fire source can be provided by a burner.
For further lifting means's corrosion resistance, as the utility model discloses a further improvement scheme, outer oven 8 and interior oven 9 adopt 304 steel construction combustion chambers, the inner wall is stainless steel plate, steel sheet thickness 3mm is equipped with the observation window at last furnace gate and combustion chamber back wall.
Prevent in the time of reducing the energy consumption that the tester is scalded to the oven, as the utility model discloses a further improvement scheme, outer oven 8 and interior oven 9 between the inside lining insulating layer.
In order to further improve the corrosion resistance, as a further improvement of the utility model, the stainless steel mesh frame 12 is made of 304 stainless steel, and a plurality of layers of glass fiber mats are laid on the upper part of the stainless steel mesh frame 12.
For making the equipment burning more stable, as the utility model discloses a further improvement scheme, 7 below of combustor be provided with the air current stabilizer, the square frame that the air current stabilizer was made for the angle steel.
When in use, the experimental furnace for flame resistance of the building material is installed and connected with corresponding pipeline equipment to be put into operation.
Claims (6)
1. The experimental furnace for the flame retardancy of building materials comprises an air supply fan (1), an air supply pipeline (2), a pore plate flowmeter (3), a square flue (4), an electric thermocouple (5), a sample support (6), a burner (7), an outer furnace wall (8), an inner furnace wall (9), a pressure difference sensor (10), a T-shaped differential pressure pipe (11), a stainless steel mesh frame (12) and a furnace body (13), and is characterized in that the air supply fan (1) is connected with the furnace body (13) formed by combining the outer furnace wall (8) and the inner furnace wall (9) through the air supply pipeline (2), the pore plate flowmeter (3) is arranged in the middle section of the air supply pipeline (2), the air supply pipeline (2) penetrates through the outer furnace wall (8) to be communicated with the lower part of the inner furnace wall (9), the stainless steel mesh frame (12) is fixedly arranged above an interface of the air supply pipeline (2) communicated with the inner furnace wall (9), the sample support (6) is fixedly arranged above the stainless steel mesh frame (12) on the inner side of the inner furnace wall (9), the sample support (6) is fixedly arranged with the burner (7), the upper part of the inner furnace wall (9) is connected with the square flue (4), the square flue (4) and the square flue (4) extends out of the middle through hole of the square flue (11) and is arranged on the surface of the middle part of the square flue (4), the upper surface of the outer furnace wall (8) is connected with a differential pressure sensor (10) through screws, and the furnace body (13) is respectively connected with a gas distribution box and a control cabinet through pipelines.
2. The experimental furnace for fire resistance of building materials according to claim 1, characterized in that the outer furnace wall (8) and the inner furnace wall (9) are 304 steel structure combustion chamber, the inner wall is stainless steel plate, the thickness of the steel plate is 3mm, and the upper furnace door and the rear wall of the combustion chamber are provided with observation windows.
3. The experimental furnace for fire resistance of building materials according to claim 1 or 2, characterized in that an insulating layer is lined between the outer furnace wall (8) and the inner furnace wall (9).
4. The experimental furnace for fire resistance of building materials as claimed in claim 1, wherein the stainless steel net frame (12) is made of 304 stainless steel.
5. The experimental furnace for fire retardancy of building materials as claimed in claim 1 or 4, wherein a plurality of layers of glass fiber mats are laid on the upper part of the stainless steel net frame (12).
6. The experimental furnace for fire resistance of building materials according to claim 1, characterized in that an air flow stabilizer is arranged below the burner (7), and the air flow stabilizer is a square frame made of angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221964570.9U CN217929769U (en) | 2022-07-28 | 2022-07-28 | Experimental furnace for flame resistance of building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221964570.9U CN217929769U (en) | 2022-07-28 | 2022-07-28 | Experimental furnace for flame resistance of building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217929769U true CN217929769U (en) | 2022-11-29 |
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ID=84151606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221964570.9U Active CN217929769U (en) | 2022-07-28 | 2022-07-28 | Experimental furnace for flame resistance of building material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217929769U (en) |
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2022
- 2022-07-28 CN CN202221964570.9U patent/CN217929769U/en active Active
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