High-sealing cremation furnace observation window
Patent Information
- Application Number
- CN202521876100.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-09-02
AI Technical Summary
[0002]传统火化炉观察窗多采用静态密封结构,如耐高温岩棉、聚四氟乙烯圈等材料,在高温环境下长期使用后易老化、龟裂,导致烟气泄漏、热能损失、观察窗失效等问题,严重时甚至引发安全事故,玻璃材料方面,传统观察窗仅采用普通的钢化玻璃或多层玻璃结构,缺乏针对高温、辐射、冲击、污染等复杂环境的综合防护设计,无法满足现代火化设备对环保,为此,我们提出了一种火化炉高密封性观察窗来解决上述问题
3、维护与更换阶段:
Smart Images

Figure CN224771528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crematorium observation windows, and in particular to a highly airtight observation window for crematoriums. Background Technology
[0002] Traditional crematorium observation windows mostly use static sealing structures, such as high-temperature resistant rock wool and PTFE rings. After long-term use in high-temperature environments, these materials are prone to aging and cracking, leading to problems such as flue gas leakage, heat loss, and observation window failure. In severe cases, this can even cause safety accidents. In terms of glass materials, traditional observation windows only use ordinary tempered glass or multi-layered glass structures, lacking comprehensive protection designs for complex environments such as high temperature, radiation, impact, and pollution. This fails to meet the environmental protection requirements of modern cremation equipment. Therefore, we propose a high-sealing observation window for crematoriums to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly airtight observation window for crematoriums.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A high-sealing observation window for a cremator includes two I-shaped reinforcing plates, with reinforcing plates snapped onto both the upper and lower ends of the two I-shaped reinforcing plates. The reinforcing plates are connected to the I-shaped reinforcing plates via a locking mechanism. A glass body is installed between the two I-shaped reinforcing plates and the two reinforcing plates. A sealing strip is snapped around the circumference of the glass body. The glass body is composed of nano-coated tempered glass, a low-emissivity film, and quartz glass. The sealing strip is composed of a first foamed silicone layer, a ceramic fiber matrix, an aerogel layer, and a second foamed silicone layer from the inside out.
[0005] Preferably, the I-shaped reinforcing plate has slots at both ends, and a locking block is fixed on both sides of the reinforcing plate, with one locking block on the same side engaging with a slot on the same side.
[0006] Preferably, the locking mechanism includes screws that pass through both ends of the I-shaped reinforcing plate, two second mounting holes are provided at both ends of the I-shaped reinforcing plate, a first mounting hole is provided on the locking block, and a screw on the same side passes through the first mounting hole and the two second mounting holes and extends to one end of the I-shaped reinforcing plate.
[0007] Preferably, the I-shaped reinforcing plate is made of high-strength alloy steel.
[0008] In this utility model: 1. Installation phase: Two I-shaped reinforcing plates are arranged on both sides of the observation window opening, and are engaged with the locking blocks on the upper and lower reinforcing plates through the slots at their ends; screws are then used to pass through the first mounting hole of the reinforcing plate and the two second mounting holes of the I-shaped reinforcing plate in sequence to complete the structural locking. The composite glass body is embedded between the reinforcing plates. The glass body is composed of nano-coated tempered glass, low-emissivity film and quartz glass. A sealing strip composed of four heterogeneous materials is installed on the outer periphery of the glass body: a first foamed silicone layer, a ceramic fiber matrix, an aerogel layer and a second foamed silicone layer. The sealing strip is tightly fitted to the observation window frame to form a multi-layer sealing system. 2. Operational Phase: When the internal temperature of the crematorium rises to 50-900℃, the materials of each layer inside the sealing strip achieve synchronous thermal deformation due to the matching linear expansion coefficients, effectively preventing sealing failure caused by thermal stress; the nano-coated tempered glass of the outer layer of the glass body effectively prevents smoke and dust from adhering and maintains clear visibility; the middle layer of low-emissivity film can reflect infrared radiation, reduce heat transfer, and also has a certain shock absorption and cushioning effect; the inner layer of quartz glass provides high-strength impact resistance, ensuring that it is not easy to break under extreme working conditions; the aerogel layer in the sealing strip and the ceramic fiber matrix together form a highly efficient thermal insulation barrier, improving the overall thermal insulation performance; 3. Maintenance and Replacement Phase: The modular design of the slots and blocks allows for quick disassembly of the reinforcing plate and the glass body; the sealing strip is highly replaceable, facilitating regular inspection and maintenance; and the multi-layer composite structure design reduces the overall replacement frequency, extends service life, and lowers maintenance costs.
[0009] This utility model has the following advantages: 1. The aerogel layer in this utility model has an extremely low thermal conductivity and has both heat insulation and sealing functions. The foamed silicone layer provides good compression resilience and enhances the sealing adaptability. The ceramic fiber matrix has excellent high temperature resistance and effectively prevents the sealing material from carbonizing or cracking at high temperatures. The composite sealing structure significantly improves the sealing performance and durability. 2. The outer layer is made of nano-coated tempered glass, the middle layer is made of low-emissivity film, and the base layer is made of quartz glass. The three-layer structure works together to comprehensively improve the visibility, safety and functionality of the observation window, achieving multi-functional protection. 3. Improved sealing performance can effectively prevent flue gas leakage and reduce harmful gas emissions; efficient heat insulation design reduces heat loss in the crematorium and improves energy utilization. In summary, this invention can effectively prevent the sealing material from carbonizing or cracking at high temperatures. At the same time, the composite sealing structure significantly improves the sealing performance and durability. In addition, the three-layer structure works together to comprehensively improve the visibility, safety and functionality of the observation window, achieving multi-functional protection. Attached Figure Description
[0010] Figure 1 This is a structural diagram showing the separation of the reinforcing plate and the I-shaped reinforcing plate of this utility model; Figure 2 This is a structural diagram of the combination of the reinforcing plate and the I-shaped reinforcing plate of this utility model; Figure 3 This is a structural diagram of the sealing strip of this utility model; Figure 4 This is a structural diagram of the glass body of this utility model; Figure 5 This is a structural diagram of the glass body of this utility model; Figure 6 This is a structural diagram of the sealing strip and glass body of this utility model. Figure 7 This is a structural diagram of the sealing strip of this utility model.
[0011] In the figure: 1. Nano-coated tempered glass, 2. Low-emissivity film, 3. Quartz glass, 4. Reinforcing plate, 5. First mounting hole, 6. Slot, 7. I-shaped reinforcing plate, 8. Clip, 9. Second mounting hole, 10. Screw, 11. Sealing strip, 12. Glass body, 13. First foamed silicone layer, 14. Ceramic fiber matrix, 15. Aerogel layer, 16. Second foamed silicone layer. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0013] Reference Figure 1-7 A high-sealing observation window for a cremator includes two I-shaped reinforcing plates 7. Reinforcing plates 4 are snapped onto the upper and lower ends of each I-shaped reinforcing plate 7. The reinforcing plates 4 are connected to the I-shaped reinforcing plates 7 via a locking mechanism. A glass body 12 is installed between the two I-shaped reinforcing plates 7 and the two reinforcing plates 4. A sealing strip 11 is snapped around the perimeter of the glass body 12. The glass body 12 is made of nano-coated tempered glass 1. The nano-coated tempered glass 1 has a surface coated with a nano-hydrophobic and oleophobic coating, effectively preventing the adhesion of smoke and dust; high light transmittance, maintaining a clear field of view; and strong scratch resistance and wear resistance, suitable for the frequent cleaning needs of crematoriums. It consists of a low-emissivity film 2 and quartz glass 3. The low-emissivity film 2 is a low-emissivity thin film in the middle layer, which has excellent infrared reflection ability; it reduces heat radiation transmittance, reduces heat transfer to the outside, and improves energy efficiency; it also has shock absorption and cushioning functions, and improves the overall toughness of the glass. Quartz Glass 3: The inner layer is made of high-purity quartz glass, which has extremely high thermal stability and impact resistance; it can withstand instantaneous temperature changes of up to 1000℃ or more; it is suitable for safety protection under extreme operating conditions of crematoriums. The sealing strip 11 is composed of a first foamed silicone layer 13, a ceramic fiber matrix 14, an aerogel layer 15, and a second foamed silicone layer 16 from the inside out. The first foamed silicone layer 13 is located in the innermost layer and has excellent elasticity and high temperature resistance, providing an initial seal; it can effectively absorb the small deformations between the glass and the frame. Ceramic fiber matrix 14: Intermediate layer, possessing excellent fire resistance and heat insulation; preventing flames and high-temperature gases from directly contacting the glass; maintaining structural integrity even at high temperatures; Aerogel layer 15: High-efficiency insulation layer with extremely low thermal conductivity; it is currently recognized as one of the best insulation materials; it can significantly reduce heat transfer and improve the overall thermal insulation performance of the sealing strip; Second foamed silicone layer 16: outer structure, tightly fitted to the observation window frame; provides final airtightness assurance; prevents gas leakage from the furnace and maintains stable internal pressure of the crematorium; Both ends of the I-shaped reinforcing plate 7 are provided with slots 6, and both sides of the reinforcing plate 4 are fixed with blocks 8. One block 8 on the same side is engaged in one slot 6 on the same side. The slots 6 are provided at both ends of the I-shaped reinforcing plate 7 and are used to cooperate with the blocks 8 of the reinforcing plate 4. The blocks 8 are fixed on both sides of the reinforcing plate 4 to achieve quick engagement with the I-shaped reinforcing plate. The locking mechanism includes screws 10 that pass through both ends of the I-shaped reinforcing plate 7. Both ends of the I-shaped reinforcing plate 7 are provided with two second mounting holes 9. The locking block 8 is provided with a first mounting hole 5. A screw 10 on the same side passes through the first mounting hole 5 and the two second mounting holes 9 and extends to one end of the I-shaped reinforcing plate 7. The screw 10 passes through the first mounting hole 5 on the reinforcing plate 4 and the two second mounting holes 9 on the I-shaped reinforcing plate 7 in sequence, providing structural stability and enhancing the overall pressure resistance and heat deformation resistance. The double-hole locking design improves the overall structural tightness and anti-loosening performance. The I-beam reinforcing plate 7 is made of high-strength alloy steel and has good resistance to deformation and high temperature. In this utility model: 1. Installation phase: Two I-shaped reinforcing plates 7 are arranged on both sides of the observation window opening, and are engaged with the locking blocks 8 on the upper and lower reinforcing plates 4 through the slots 6 at their ends; screws 10 are used to pass through the first mounting hole 5 of the reinforcing plate 4 and the two second mounting holes 9 of the I-shaped reinforcing plate 7 in sequence to complete the structural locking. A composite glass body 12 is embedded between reinforcing plates. The glass body is composed of nano-coated tempered glass 1, low-emissivity film 2, and quartz glass 3. A sealing strip 11 composed of four layers of heterogeneous materials is installed on the outer periphery of the glass body 12, namely: a first foamed silicone layer 13, a ceramic fiber matrix 14, an aerogel layer 15, and a second foamed silicone layer 16. The sealing strip 11 is tightly fitted with the observation window frame to form a multi-layer sealing system. 2. Operational Phase: When the internal temperature of the cremator rises to 50-900℃, the materials of each layer inside the sealing strip 11 achieve synchronous thermal deformation due to the matching linear expansion coefficients, effectively preventing sealing failure caused by thermal stress; the nano-coated tempered glass 1 on the outer layer of the glass body 12 effectively prevents smoke and dust from adhering and maintains a clear view; the middle layer low-emissivity film 2 can reflect infrared radiation, reduce heat transfer, and also has a certain shock absorption and buffering effect; the inner layer quartz glass 3 provides high-strength impact resistance, ensuring that it is not easy to break under extreme working conditions; the aerogel layer 15 in the sealing strip 11 and the ceramic fiber matrix 14 together form a highly efficient heat insulation barrier, improving the overall heat insulation performance; 3. Maintenance and Replacement Phase: The modular design of the slot 6 and the block 8 allows for quick disassembly of the reinforcing plate 4 and the glass body 12; the sealing strip 11 is highly replaceable, facilitating regular inspection and maintenance; the multi-layer composite structure design reduces the overall replacement frequency, extends service life, and lowers maintenance costs.
[0014] This invention is not only applicable to observation windows in cremation furnaces, but can also be extended to observation windows in high-temperature environments such as high-temperature kilns, heat treatment equipment, and industrial heating devices. Industrial high-temperature equipment: such as high-temperature furnaces, incinerators, and metallurgical furnaces; Scientific research equipment: such as autoclaves and vacuum furnaces; Environmental protection equipment: waste incinerators, hazardous substance treatment furnaces; Building fire protection systems: fire-resistant observation windows, high-temperature isolation windows; Aerospace field: observation window for high-temperature cabins of spacecraft.
[0015] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A high-sealing observation window for a crematorium, comprising two I-shaped reinforcing plates (7), characterized in that, Two I-shaped reinforcing plates (7) are clamped at both ends with reinforcing plates (4). The reinforcing plates (4) are connected to the I-shaped reinforcing plates (7) through a locking mechanism. A glass body (12) is installed between the two I-shaped reinforcing plates (7) and the two reinforcing plates (4). A sealing strip (11) is clamped around the glass body (12). The glass body (12) is composed of nano-coated tempered glass (1), low-emissivity film (2) and quartz glass (3). The sealing strip (11) is composed of a first foamed silicone layer (13), a ceramic fiber matrix (14), an aerogel layer (15) and a second foamed silicone layer (16) from the inside to the outside.
2. The high-sealing observation window for a crematorium according to claim 1, characterized in that: Both ends of the I-shaped reinforcing plate (7) are provided with slots (6), and both sides of the reinforcing plate (4) are fixed with blocks (8). One block (8) on the same side is engaged in one slot (6) on the same side.
3. The high-sealing observation window for a crematorium according to claim 2, characterized in that: The locking mechanism includes screws (10) that pass through both ends of the I-shaped reinforcing plate (7). Both ends of the I-shaped reinforcing plate (7) are provided with two second mounting holes (9). The locking block (8) is provided with a first mounting hole (5). A screw (10) on the same side passes through the first mounting hole (5) and the two second mounting holes (9) and extends to one end of the I-shaped reinforcing plate (7).
4. The high-sealing observation window for a crematorium according to claim 1, characterized in that: The I-shaped reinforcing plate (7) is made of high-strength alloy steel.