Muffle furnace
By introducing a blower and ventilation duct system into the muffle furnace, the problem of low exhaust efficiency of existing muffle furnaces has been solved, achieving rapid discharge of harmful gases and heat preservation effect, thus improving the performance of the muffle furnace.
Patent Information
- Application Number
- CN202423046324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing muffle furnaces are inefficient at emitting harmful gases, posing a health hazard to laboratory personnel.
A blower and ventilation duct system, including a first ventilation duct and a second ventilation duct, are installed in the muffle furnace to achieve rapid exhaust and heat preservation.
It accelerates the emission of harmful gases, improves exhaust efficiency, and reduces heat loss through the insulation box, thus enhancing the performance of the muffle furnace.
Smart Images
Figure CN223470482U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of muffle furnace, concretely to a muffle furnace. BACKGROUND
[0002] The box furnace is also called muffle furnace, and is simple to operate and convenient to maintain, and is provided with a controllable chimney behind the furnace.
[0003] The muffle furnace is mostly used as heating equipment in the laboratory, and if the muffle furnace heats the material containing harmful substances, some harmful gases are usually generated, which endangers the health of the experimental personnel, in order to overcome the defects mentioned above, the muffle furnace is usually provided with an exhaust pipe, and the muffle furnace is discharged to the outdoor through the exhaust pipe, and the exhaust effect is slow.
[0004] Therefore, the muffle furnace is proposed to solve the problems mentioned above. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at solving the technical problems mentioned above.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a muffle furnace, including a box body and a hearth installed in the box body, the opening of the box body is installed with a box cover, the inside of the hearth is installed with a heating wire, the inside of the box body is also installed with a blower, one end of the blower is installed with a first ventilation pipeline connected with the hearth, the hearth is also installed with a second ventilation pipeline, and the second ventilation pipeline extends to the outside of the box body.
[0007] Further, the first ventilation pipeline is installed with a gas flow meter, and the gas flow meter is located outside the box body.
[0008] Further, the first ventilation pipeline is also installed with a first ball valve, and the first ball valve is arranged close to the part of the box body.
[0009] Further, one end of the second ventilation pipeline is also installed with a second ball valve, and the second ball valve is located outside the box body.
[0010] Further, the inside of the box body is also installed with a heat preservation box assembled by a plurality of heat preservation plates, and the hearth is located in the inside of the heat preservation box.
[0011] Further, the side of the box body is rotatably installed with a U-shaped frame, and the U-shaped frame is rotatably connected with the box cover.
[0012] Further, the side of the box cover is installed with a hearth cover.
[0013] The utility model discloses a beneficial effect:
[0014] The utility model discloses a blast furnace and first ventilation pipe are provided with in the lower part of hearth, through blast furnace and the cooperation of first ventilation pipe, can extract gas to the hearth, be provided with second ventilation pipe on the hearth, after the gas of outside enters the inside of hearth, the gas in the hearth can be discharged from second ventilation pipe fast, accelerate the flow speed of air, promote the efficiency of hearth exhaust.
[0015] The utility model discloses a blast furnace and first ventilation pipe are provided with in the lower part of hearth, through blast furnace and the cooperation of first ventilation pipe, can extract gas to the hearth, be provided with second ventilation pipe on the hearth, after the gas of outside enters the inside of hearth, the gas in the hearth can be discharged from second ventilation pipe fast, accelerate the flow speed of air, promote the efficiency of hearth exhaust. ACCURACY
[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the internal structure schematic diagram of the utility model;
[0018] Figure 3 It is the structure schematic diagram of box cover and box cover connection in the utility model;
[0019] Figure 4 It is the structure schematic diagram of hearth and heat preservation box connection in the utility model;
[0020] Figure 5 It is the local structure schematic diagram of the utility model.
[0021] The name corresponding to each mark in the drawing:
[0022] 1, box body;2, hearth;3, box cover;4, heating wire;5, blast furnace;6, first ventilation pipe;7, second ventilation pipe;8, gas flow meter;9, first ball valve;10, second ball valve;11, heat preservation board;12, heat preservation box;13, "U" shaped frame;14, hearth cover. SPECIFIC IMPLEMENTATION
[0023] The technical scheme in the embodiment of the utility model will be described clearly and completely in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art belong to the scope of the utility model protection.
[0024] A muffle, comprising a box body 1, a "U"-shaped frame 13 is rotatably installed at the opening of the box body 1 through a hinge (not shown in the figure), and the same box cover 3 is rotatably installed at the two ends of the "U"-shaped frame 13, and the box cover 3 is used to close the box body 1.
[0025] A plurality of heat preservation plates 11 are arranged in the box body 1, and the number of the heat preservation plates 11 is preferably five, the five heat preservation plates 11 are assembled into a heat preservation box 12, and the opening of the heat preservation box 12 is opposite to the box cover 3, the heat preservation box 12 is used to prevent the heat in the hearth 2 from being lost, and it should be noted that a gap is reserved between the heat preservation box 12 and the hearth 2, and the gap is filled with heat preservation cotton, which is used to further preserve the heat in the hearth 2; and the hearth 2 is arranged in the heat preservation box 12, and a heating wire 4 is installed in the hearth 2, which is used to heat, and a hearth cover 14 opposite to the hearth 2 is arranged on one side of the box cover 3, and the hearth cover 14 is used to seal the hearth 2 when the box cover 3 is closed.
[0026] A blower 5 is further installed in the box body 1, one end of the blower 5 is provided with a first ventilation pipeline 6, one end of the first ventilation pipeline 6 is connected with the hearth 2, and the cooperation of the blower 5 and the first ventilation pipeline 6 can convey gas into the box body 1, it should be noted that a gas flow meter 8 is installed on the first ventilation pipeline 6, and the gas flow meter 8 is arranged outside the box body 1, the gas flow meter 8 is used to detect the gas inflow of the hearth 2, and a first ball valve 9 is further installed on the first ventilation pipeline 6, the first ball valve 9 is a high-temperature ball valve, and the first ball valve 9 is used to close when the blower 5 is not used, so as to prevent the heat in the hearth 2 from being released outward along the first ventilation pipeline 6.
[0027] A second ventilation pipeline 7 is installed on the hearth 2, the second ventilation pipeline 7 extends to the outside of the box body 1 and is provided with an exhaust pipeline (not shown in the figure), and the exhaust pipeline extends to the outdoor, the cooperation of the second ventilation pipeline 7 and the exhaust pipeline can discharge harmful gas to the outdoor, and a second ball valve 10 is installed on the second ventilation pipeline 7, the second ball valve 10 is also a high-temperature ball valve, and the second ball valve 10 is used to close the second ventilation pipeline 7 when the blower 5 is not used, so that the hearth 2 can work in a sealed state.
[0028] If the furnace 2 is heated by harmful substances, some harmful gases are usually generated, at this time, the first ball valve 9 and the second ball valve 10 are opened first, then the air blower 5 is opened, the air blower 5 can extract the external gas, the extracted gas can enter the inside of the furnace 2 through the first ventilation pipeline 6, the gas in the furnace 2 can flow through the second ventilation pipeline 7, so that the harmful gas in the furnace 2 is discharged to the outside through the second ventilation pipeline 7 and the exhaust pipe in turn, reducing the harm of harmful gas to the workers.
Claims
1. A muffle furnace comprising a box (1) and a hearth (2) installed in the box (1), a box cover (3) is installed at the opening of the box (1), a heating wire (4) is installed inside the hearth (2), characterized in that: The inside of the box (1) is also provided with a blower (5), one end of the blower (5) is provided with a first ventilation duct (6) connected with the furnace (2), the furnace (2) is also provided with a second ventilation duct (7), and the second ventilation duct (7) extends to the outside of the box (1).
2. A muffle as claimed in claim 1, characterised in that: The first ventilation duct (6) is provided with a gas flow meter (8), and the gas flow meter (8) is located outside the box (1).
3. A muffle as claimed in claim 1, characterised in that: The first ventilation duct (6) is also provided with a first ball valve (9), and the first ball valve (9) is arranged close to the box (1).
4. A muffle as claimed in claim 1, characterised in that: One end of the second ventilation duct (7) is also provided with a second ball valve (10), and the second ball valve (10) is located outside the box (1).
5. An oven according to claim 1, wherein: The inside of the box (1) is also provided with a heat preservation box (12) assembled by a plurality of heat preservation plates (11), and the furnace (2) is located in the inside of the heat preservation box (12).
6. An oven according to claim 1, wherein: One side of the box (1) is rotatably provided with a "U" shaped frame (13), and the "U" shaped frame (13) is rotatably connected with the box cover (3).
7. A muffle as claimed in claim 1 or 6, characterised in that: One side of the box cover (3) is provided with a furnace cover (14).