Energy-saving fire hole cover

Abstract

The utility model relates to a fire hole cover technical field provides an energy -saving type fire hole cover, including hole cover body, the inside of hole cover body is provided with heat -insulation structure, the heat -insulation structure includes the cavity of setting in the hole cover body inside, the inside of cavity is provided with high temperature resistant heat -insulation insulation coating, the outside of high temperature resistant heat -insulation insulation coating is provided with castable, the one side of hole cover body bottom is provided with the filling hole, the top of hole cover body is fixed with fixed structure. The utility model discloses through being provided with heat -insulation structure, through the cavity, nanometer aerogel composite coating and nanometer castable constitute multilayer heat -insulation system, can effectively block the heat transfer, and then can reduce heat loss, realize good heat -insulation energy -saving purpose, and through the structural design of castable has guaranteed the overall strength and stability.

Description

Technical Field

[0001] This utility model relates to the technical field of fire observation hole covers, and in particular to an energy-saving fire observation hole cover. Background Technology

[0002] The observation hole cover is a component of a coke oven used to observe the combustion state inside the combustion chamber. An energy-saving observation hole cover is a sealing device for observation holes in industrial high-temperature furnaces. Its core function is to meet the needs of monitoring the combustion state inside the furnace, while minimizing heat loss and cold air infiltration through optimized structural design, the use of high-efficiency heat insulation materials and sealing technology, thereby reducing energy consumption and improving thermal efficiency.

[0003] To address this, patent CN203247225U discloses a fire inspection hole cover, comprising a top cover layer, a heat insulation layer, and a bottom cover layer connected sequentially from top to bottom. This fire inspection hole cover adopts a split design, which is simple in structure, easy to use, and low in cost. By setting the heat insulation layer, the sealing performance of the fire inspection hole cover is improved, significantly enhancing its heat insulation performance. This effectively reduces the surface temperature of the fire inspection hole cover and the ambient temperature of the furnace top, not only reducing heat loss from the furnace top surface and improving the heating efficiency of the coke oven, thus saving energy and reducing consumption, but also optimizing the working environment at the furnace top, reducing the emission of harmful gases and the danger of open flames, effectively ensuring the safety of workers. Furthermore, it can extend the service life of the equipment.

[0004] The aforementioned inspection hole cover, made of cast iron, has insufficient high-temperature resistance, making it prone to deformation and burning, which affects production efficiency. Furthermore, it suffers from insufficient heat insulation and severe heat dissipation. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving fire vent cover to address the shortcomings of existing fire vent covers in terms of insufficient high-temperature resistance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an energy-saving fire-watching hole cover, including a hole cover body;

[0007] The inside of the hole cover body is provided with a heat insulation structure, the heat insulation structure includes a cavity provided inside the hole cover body, the cavity is provided with a high temperature heat insulation coating, the outside of the high temperature heat insulation coating is provided with a casting material, and a filling hole is provided on one side of the bottom end of the hole cover body.

[0008] The top of the hole cover body is fixed with a fixing structure.

[0009] Preferably, the cavity is arc-shaped, and the high-temperature resistant heat insulation coating is a nano-aerogel composite coating.

[0010] With the above structure, the arc-shaped cavity increases the contact area between the cavity and the high-temperature environment during use, making the heat conduction path within the cavity longer and the air insulation effect more significant. This further hinders heat transfer to the outside of the sill cover. In addition, the nano-aerogel composite coating has good high-temperature resistance, which can maintain a stable heat insulation effect in high-temperature environments and extend the service life of the sill cover.

[0011] Preferably, the castable is circular in shape, with an annular convex edge at the top edge and tapered ends.

[0012] With the above structure, the circular structure distributes the force evenly during use, which can effectively resist thermal stress and external mechanical pressure under high temperature environment, avoid cracking of the castable due to local stress concentration, and improve the stability of the overall structure.

[0013] Preferably, the castable is a nano-castable, and one end of the filling hole extends through the interior of the castable into the interior of the cavity.

[0014] With the above structure, the nano-casting material has low thermal conductivity and good high temperature resistance during use. It can form a multi-layer thermal insulation system with high temperature resistant thermal insulation coatings and cavities to further block heat conduction and improve the overall energy-saving effect.

[0015] Preferably, the fixing structure includes a top plate fixed to the top of the hole cover body, a handle fixed to the top of the top plate, a support column fixed to the bottom of the top plate, pores provided inside the castable material on the outside of the support column, a bottom plate fixed to the bottom of the support column, and gaps provided inside the castable material on the outside of the bottom plate.

[0016] Preferably, the handle is curved, and the diameter of the top plate is the same as the diameter of the top of the refractory.

[0017] With the above structure, the curved handle is ergonomically designed, allowing operators to grip it more easily and lift or lower the cover body. Especially when operating in high-temperature environments, it reduces the risk of direct hand contact with high-temperature areas. Furthermore, the diameter of the top plate is the same as the diameter of the top of the castable, allowing it to fit tightly against the annular convex edge of the top edge of the castable, forming a complete planar sealing surface. This effectively prevents heat loss from the connection between the fixed structure and the castable, enhancing the overall heat insulation effect.

[0018] Preferably, the support columns are evenly distributed at the bottom end of the top plate, and the holes correspond one-to-one with the support columns.

[0019] With the above structure, the external load on the top plate can be evenly distributed to the hole cover body during use by the equally spaced distribution, avoiding excessive local stress that could lead to structural deformation or cracking, and improving the stability of the fixed structure.

[0020] Preferably, the diameter of the base plate is smaller than the diameter of the top plate, and the gap matches the base plate.

[0021] With the above structure, the gap matches the shape of the base plate during use, which can ensure that the base plate will not generate excessive stress due to the limitation of the castable material when it expands in a high-temperature environment, thus avoiding deformation of the base plate or cracking of the castable material and ensuring a long-term reliable connection between the fixing structure and the heat insulation structure.

[0022] Preferably, the outer sides of the top plate, support column, and bottom plate are all coated with paraffin oil, and the top plate, support column, and bottom plate are made of metal-ceramic composite material.

[0023] With the above structure, the different thermal expansion coefficients of the metal-ceramic composite material and the nano-casting material are utilized during use. At high temperatures, the paraffin oil melts or vaporizes, forming a gap between the metal and the inorganic non-metallic material. This provides a space for the two materials to expand in different ways, thus avoiding structural cracking or deformation due to compressive stress.

[0024] The present invention provides an energy-saving fire-viewing hole cover, the advantages of which are:

[0025] By incorporating a heat-insulating structure, a multi-layered heat-insulating system is formed by cavities, nano-aerogel composite coatings, and nano-castable materials. This effectively blocks heat transfer, thereby reducing heat loss and achieving excellent heat insulation and energy-saving results. Furthermore, the structural design of the castable material ensures overall strength and stability.

[0026] By setting up a fixed structure, and by coating the surfaces of the top plate, support columns and bottom plate with paraffin oil, a gap is formed between the metal and inorganic non-metallic materials at high temperatures, providing space for the different expansion of the two. In addition, the top plate is tightly attached to the top of the castable material. Combined with the sealing effect of the paraffin oil, heat loss from the fixed structure is reduced. At the same time, the entire metal structure is made of metal-ceramic composite material, which has high strength, high temperature resistance and can work stably in high temperature environment. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0029] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the hole cover body of this utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the fixed structure of this utility model;

[0031] Figure 5This is a three-dimensional structural diagram of the hole cover body of this utility model.

[0032] The following are the annotations in the figure: 1. Hole cover body; 2. Thermal insulation structure; 201. Cavity; 202. High-temperature resistant thermal insulation coating; 203. Castable material; 204. Filling hole; 3. Fixing structure; 301. Top plate; 302. Handle; 303. Support column; 304. Hole; 305. Bottom plate; 306. Gap. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-5 The present invention provides an energy-saving fire-viewing hole cover, comprising a hole cover body 1.

[0035] Reference Figures 1-3 As shown, the interior of the cover body 1 is provided with a heat insulation structure 2. The heat insulation structure 2 includes a cavity 201 disposed inside the cover body 1. The cavity 201 is provided with a high-temperature resistant heat insulation coating 202. The outside of the high-temperature resistant heat insulation coating 202 is provided with a casting material 203. A filling hole 204 is provided on one side of the bottom end of the cover body 1. The cavity 201 is arc-shaped. The high-temperature resistant heat insulation coating 202 is a nano-aerogel composite coating. The casting material 203 is circular in shape. The edge of the top of the casting material 203 is provided with an annular protrusion and both ends are tapered. The casting material 203 is a nano-casting material. One end of the filling hole 204 extends through the interior of the casting material 203 and into the interior of the cavity 201.

[0036] The high-temperature heat-insulating coating 202 is a nano-aerogel composite coating with a large number of nano-sized pores filled with still air, which greatly reduces the heat conduction efficiency and further prevents heat transfer. It is a key part of the heat insulation. The castable 203 is a nano-castable with a circular structure, an annular convex edge at the top edge and tapered ends. This ensures overall strength and stability. Simultaneously, the nano-casting material itself possesses excellent thermal insulation properties. Combined with the high-temperature resistant thermal insulation coating and the cavity, it forms a multi-layered thermal insulation system, significantly improving the thermal insulation effect. Furthermore, a layer of high-temperature resistant thermal insulation coating 202 is poured into the inner surface of the cavity 201 through the filling hole 204. After drying and curing, the filling hole 204 is sealed. When heat from the high-temperature environment is transferred to the cover body 1, it first passes through the casting material 203, whose nanostructure and material properties absorb and scatter some of the heat. The remaining heat continues to be transferred to the high-temperature resistant thermal insulation coating 202, where the low thermal conductivity of the nano-aerogel composite coating again hinders heat conduction. Finally, a small amount of heat that is not completely blocked reaches the cavity 201. Due to the thermal insulation effect of the air, the heat is difficult to further transfer to the outside of the cover body, thus achieving a good thermal insulation and energy-saving effect.

[0037] Reference Figures 1-5 As shown, a fixing structure 3 is fixed to the top of the hole cover body 1. The fixing structure 3 includes a top plate 301 fixed to the top of the hole cover body 1. A handle 302 is fixed to the top of the top plate 301. A support column 303 is fixed to the bottom of the top plate 301. A hole 304 is provided inside the castable 203 on the outside of the support column 303. A bottom plate 305 is fixed to the bottom of the support column 303. A gap 306 is provided inside the castable 203 on the outside of the bottom plate 305. The handle 302 is bent. The diameter of the top plate 301 is the same as the diameter of the top of the castable refractory 203. The support columns 303 are evenly distributed at the bottom of the top plate 301. The holes 304 correspond one-to-one with the support columns 303. The diameter of the bottom plate 305 is smaller than the diameter of the top plate 301. The gaps 306 match the bottom plate 305. The outer sides of the top plate 301, support columns 303 and bottom plate 305 are all coated with paraffin oil. The top plate 301, support columns 303 and bottom plate 305 are made of metal-ceramic composite material.

[0038] By pre-embedding a top plate 301, a support column 303, and a bottom plate 305 on the upper part of the castable refractory 203, and applying a layer of paraffin oil to the support column 303 and the bottom plate 305, the paraffin oil on the surface of the support column 303 and the bottom plate 305, after being exposed to high temperature, creates a gap between the metal material and the inorganic non-metallic material, thus providing space for the inconsistent expansion of the two materials. At the same time, it also forms a certain sealing effect, and the top plate 301 is tightly attached to the top of the castable refractory 203. By utilizing the structural fit and the sealing effect of the paraffin oil, heat loss from the fixed structure is reduced, improving the overall sealing performance and energy efficiency. Meanwhile, the top plate 301, support column 303, and bottom plate 305, which are made of metal-ceramic composite material, have high strength and high temperature resistance, and can work stably in high temperature environments, ensuring the reliability of the fixed structure.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving fire observation hole cover, comprising a cover body (1); Its features are: The inside of the hole cover body (1) is provided with a heat insulation structure (2). The heat insulation structure (2) includes a cavity (201) provided inside the hole cover body (1). The cavity (201) is provided with a high temperature heat insulation coating (202). The outside of the high temperature heat insulation coating (202) is provided with a casting material (203). A filling hole (204) is provided on one side of the bottom end of the hole cover body (1). The top end of the hole cover body (1) is fixed with a fixing structure (3).

2. The energy-saving fire-viewing hole cover according to claim 1, characterized in that: The cavity (201) is arc-shaped, and the high-temperature resistant heat insulation coating (202) is a nano-aerogel composite coating.

3. The energy-saving fire-viewing hole cover according to claim 1, characterized in that: The castable (203) has a circular structure, and the top edge of the castable (203) is provided with an annular convex edge and both ends are tapered.

4. The energy-saving fire vent cover according to claim 1, characterized in that: The castable (203) is a nano-castable, and one end of the filling hole (204) extends through the interior of the castable (203) to the interior of the cavity (201).

5. The energy-saving fire-viewing hole cover according to claim 1, characterized in that: The fixing structure (3) includes a top plate (301) fixed to the top of the hole cover body (1), a handle (302) fixed to the top of the top plate (301), a support column (303) fixed to the bottom of the top plate (301), a hole (304) provided in the interior of the castable refractory (203) on the outside of the support column (303), a bottom plate (305) fixed to the bottom of the support column (303), and a gap (306) provided in the interior of the castable refractory (203) on the outside of the bottom plate (305).

6. The energy-saving fire vent cover according to claim 5, characterized in that: The handle (302) is curved, and the diameter of the top plate (301) is the same as the diameter of the top of the castable (203).

7. The energy-saving fire-viewing hole cover according to claim 5, characterized in that: The support columns (303) are evenly distributed at the bottom end of the top plate (301), and the holes (304) correspond one-to-one with the support columns (303).

8. The energy-saving fire vent cover according to claim 5, characterized in that: The diameter of the base plate (305) is smaller than the diameter of the top plate (301), and the gap (306) matches the base plate (305).

9. An energy-saving fire-viewing hole cover according to claim 5, characterized in that: The outer sides of the top plate (301), support column (303) and bottom plate (305) are all coated with paraffin oil, and the top plate (301), support column (303) and bottom plate (305) are made of metal-ceramic composite material.

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