A heating furnace with a shock absorbing lining support
By installing a protective support plate in the furnace wall of the heating furnace module and tightly fitting it with the insulation lining, the problem of vibration damage to the insulation layer during transportation and hoisting is solved, achieving better protection and reinforcement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE CHALLENGE PETROCHEM MACHINERY CORP
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-31
AI Technical Summary
The insulation layer of existing heating furnaces is easily damaged by vibration during transportation and hoisting, and there is a lack of effective protection measures.
A support plate is installed in the modular furnace wall of the heating furnace. The support plate is tightly fitted to the insulation lining. It is inserted into the insulation lining through side plates and end plates, and vaporizes at high temperature to form an expansion gap to reduce vibration. Plastic caps or insulation nails are used to enhance the fixing effect.
It effectively reduces vibration damage during transportation and hoisting, and improves the protective effect and reinforcement performance of the insulation lining.
Smart Images
Figure CN224580720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating furnace technology, specifically to a heating furnace with a vibration-damping lining support. Background Technology
[0002] To improve thermal efficiency and reduce energy consumption, heating furnaces typically employ insulation structures. The insulation layer is usually composed of all or part of refractory fibers, castables, and refractory bricks.
[0003] In the field of thermal systems, a large amount of insulation layer is typically laid. Its main functions include the following:
[0004] (1) Separate the hot and cold environments in the equipment to reduce heat loss. For example, an insulation layer is often laid on the outer surface of high-temperature equipment and pipelines to reduce heat loss.
[0005] (2) Separate hot and cold components in the equipment to ensure that the ambient temperature of the cold components is below their design temperature limit. For example, the insulation material filling the heat sleeve of the main steam nozzle of the gas-cooled reactor steam generator.
[0006] (3) When the temperature difference between the two sides of the same component is large, laying an insulation layer can reduce the thermal stress of the component. For example, the insulation layer laid on the outside of the main steam tube box of the gas-cooled reactor steam generator can reduce the thermal stress at the tube box flange.
[0007] In typical thermal systems, the primary function of insulation layers is most commonly to prevent heat loss from the thermal system to the atmosphere. This type of insulation layer is usually laid on the outside of the thermal equipment, and its outer surface is in contact with the atmosphere. The structure of this insulation layer is generally simple: after the insulation material is laid, a protective layer (metal or non-metallic and a mortar finish) is wrapped around it. When the ambient medium outside the protective layer has a high flow velocity, a thin metal sheet must be used as the protective layer. When the load exerted by the insulation material on the protective layer is large, a supporting or fixing structure for the protective layer is generally required. From the above description, it can be seen that the protective layer is usually located on the low-temperature side, while the structural components (mainly bearing mechanical loads) are located on the high-temperature side.
[0008] For example, Chinese patent document CN216409724U discloses a lining structure and a high-temperature bell-shaped heating furnace. This lining structure is applied to a high-temperature bell-shaped heating furnace, which includes a bell-shaped inner wall. The lining structure includes a flat layer and an alumina module layer. The flat layer is fitted to the inner wall to level it. The alumina module layer includes several alumina module bodies arranged circumferentially along the inner wall on the side of the flat layer away from the inner wall. Due to its unique high-temperature resistance, the alumina module layer of this lining structure increases heat resistance and blocks heat flow, thereby reducing heat loss, saving energy and reducing consumption. It is also simple and convenient to construct, saving investment and operating costs.
[0009] For example, Chinese patent document CN207455615U discloses a toothed lining retainer ring. This ring is annular with multiple teeth on its outer circumference and multiple expansion joints corresponding to the teeth on its inner circumference. The expansion joints coincide with the symmetrical center lines of the teeth. This toothed lining retainer ring effectively solves the problem of localized temperature rise at the pipe port interface, alleviating the resulting weakening of connection strength. The expansion joints narrow during operation to effectively absorb internal expansion, and return to their original shape when cold, releasing internal stress and achieving equilibrium without affecting the lining.
[0010] The insulation layer of the modular heating furnace is also modularized along with the heating furnace module. It needs to be assembled on site, which requires transportation and hoisting.
[0011] The insulation layer, once modularly produced, possesses sufficient strength and toughness to meet the operational requirements of the heating furnace. However, during transport and hoisting, the insulation layer must withstand additional instantaneous loads, posing a risk of damage.
[0012] like Figure 1 and Figure 3 As shown, the existing structure involves welding a continuous metal plate with an expansion joint 011 to the bottom of the steel structure 01 of the furnace wall as a support plate 03 to protect the insulation lining 02, or as... Figure 2 As shown, protective plates 03 are installed at both the top and bottom of the steel structure 01, protecting the insulation lining 02 from both above and below. Due to the limitations of the surface unevenness and roughness of the protective plates and the insulation lining, there are gaps between the protective plates and the insulation lining. Vibration occurs during transportation and hoisting, which is not conducive to the protection of the insulation lining. Summary of the Invention
[0013] In view of the above-mentioned technical problems, the present invention provides a heating furnace with a vibration-damping lining support.
[0014] To achieve the above objectives, this utility model provides the following technical solution:
[0015] A heating furnace with a vibration-damping lining support is provided, including a modular furnace wall, the modular furnace wall including a steel structure and an insulation lining, the insulation lining being fixed to the inner side of the steel structure, characterized in that: the steel structure is fixed with a support plate, the support plate supporting the bottom of the insulation lining, the support plate is also provided with side plates, the side plates being inserted into the insulation lining.
[0016] Specifically, the support plate has a U-shaped cross-section, which includes a plate body supporting the end face of the insulation lining and two side plates embedded in the insulation lining.
[0017] Specifically, the end of the side panel is equipped with a plastic cap, which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the side panel.
[0018] Specifically, the free end of the support plate is provided with an end plate, which is inserted into the insulation lining.
[0019] Specifically, the end of the end plate is equipped with a plastic cap, which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the end plate.
[0020] Specifically, two or more support plates are arranged side by side, separated by partitions.
[0021] Specifically, the top of the insulation lining is also provided with the aforementioned support plate.
[0022] Specifically, the sides of the side panels face the steel structure.
[0023] Specifically, the side panels have expansion joints, which can be rectangular, wavy, or trapezoidal.
[0024] Specifically, the support plate is welded with insulation nails, which are embedded in the insulation lining; the insulation nails are V-shaped nails, Y-shaped nails, or straight nails.
[0025] The beneficial effects of this utility model are:
[0026] This utility model discloses a heating furnace with a vibration-damping lining support. Compared with the prior art, this utility model increases the fit between the support plate and the insulation lining, reduces vibration during transportation and hoisting, protects the insulation lining from damage during transportation and hoisting, improves the protection effect of the insulation lining, and also enhances the reinforcement effect of the insulation lining. Attached Figure Description
[0027] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0028] Figure 1This is a schematic diagram of a furnace wall structure in the prior art, showing a support plate installed at the bottom of the insulation lining.
[0029] Figure 2 This is another schematic diagram of a furnace wall structure in the prior art, showing that the insulation lining has protective plates at the bottom and top respectively.
[0030] Figure 3 for Figure 1 The cross-sectional view with section AA conceals the insulation lining.
[0031] Figure 4 This is a schematic diagram of the first embodiment of the furnace wall of a heating furnace with a vibration-damping lining support according to the present invention. The viewing angle is the same as... Figure 3 .
[0032] Figure 5 for Figure 4 A sectional view with section BB as the cross section.
[0033] Figure 6 This is a schematic diagram of the support plate.
[0034] Figure 7 This is a schematic diagram of the second embodiment of the furnace wall of a heating furnace with a vibration-damping lining support according to the present invention. The viewing direction is the same as that of the furnace wall. Figure 5 The difference lies in the plastic caps at the ends of the side panels.
[0035] Figure 8 This is a schematic diagram of the third embodiment of the furnace wall of a heating furnace with a vibration-damping lining support according to the present invention. The viewing direction is the same as that of the furnace wall. Figure 3 .
[0036] Figure 9 for Figure 8 The sectional view, its viewing direction is the same as Figure 5 .
[0037] Figure 10 This is a schematic diagram of the fourth embodiment of the furnace wall of a heating furnace with a vibration-damping lining support according to the present invention. The viewing direction is the same as that of the furnace wall. Figure 5 .
[0038] Figure 11 This is a schematic diagram of the fifth embodiment of the furnace wall of a heating furnace with a vibration-damping lining support according to this utility model. The viewing direction is the same as that of the present invention. Figure 5 .
[0039] Figures 1 to 3 Figure label:
[0040] Steel structure 01, thermal insulation lining 02, support plate 03, expansion joint 011.
[0041] Figures 4 to 11 Figure label:
[0042] 1. Steel structure; 2. Thermal insulation lining;
[0043] 3. Support plate 3, side plate 31, expansion joint 32, plate body 33, end plate 34;
[0044] 4. Plastic cap; 5. Insulation nail. Detailed Implementation
[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0046] The present invention relates to a heating furnace with a vibration-damping lining support, the first embodiment of which is as follows: Figure 4 and Figure 5 The modular furnace wall shown comprises a steel structure 1 and an insulation lining 2. The insulation lining 2 has a multi-layered structure and is fixed to the inner side of the steel structure 1. A support plate 3 is fixed to the steel structure 1. The support plate 3 is welded to the steel structure 1 or fixed by a detachable locking method. The support plate 3 supports the bottom of the insulation lining 2 with its face upwards. The support plate 3 is also provided with side plates 31, which are inserted into the insulation lining 2. This increases the fit between the support plate 3 and the insulation lining 2, reduces vibration during transportation and hoisting, protects the insulation lining 2 from damage during transportation and hoisting, and improves the protective effect on the insulation lining 2. It also enhances the reinforcement effect on the insulation lining 2.
[0047] In this embodiment, the support plate 3 has a U-shaped cross-section, comprising a horizontally placed plate body 33 supporting the end face of the insulation lining 2 and two vertically placed side plates 31 embedded within the insulation lining 2. In practice, the support plate 3 may also be provided on the top of the insulation lining 2. The sides of the side plates 31 face the steel structure 1.
[0048] like Figure 6 As shown, the support plate 3 is a metal plate, and the side plate 31 has an expansion joint 32, which is rectangular, wavy, or trapezoidal. In practice, the surface of the side plate 31 can be a straight surface, a wavy surface, or a concave-convex surface to increase the contact area with the insulation lining 2.
[0049] In this embodiment, two or more support plates 3 are arranged side by side, that is, the support plates 3 are U-shaped intermittent lining support plates. The side plates 31 of the support plates 3 extend into the insulation lining 2, which can completely fit the insulation lining 2 and at the same time play a role in reinforcing the insulation lining 2.
[0050] It should be noted that, for ease of understanding, the same functional parts in each embodiment are labeled with the same numbers.
[0051] Second implementation example Figure 7 As shown, the difference lies in that the end of the side plate 31 is provided with a plastic cap 4, which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the side plate 31. The top of the side plate 31 is covered with a plastic cap 4 that is heat-resistant to below 200°C. The plastic cap 4 is embedded in the insulation lining 2 during the casting process. When the temperature is below 200°C (cold state, when the heating furnace is not in operation), it maintains a solid state to improve the stability during assembly. When the temperature is above 200°C (hot state, when the heating furnace is in operation, at which point the heating furnace has been assembled), it gradually melts until it vaporizes and enters the insulation lining 2 to leave an expansion gap between the insulation lining 2 and the side plate 31 for the side plate 31 to expand under heat.
[0052] Third implementation example Figure 8 and Figure 9 As shown, the difference lies in that the free end of the support plate 3 is provided with an end plate 34, which is inserted into the insulation lining 2. Similarly, in practice, the end plate 34 can also have an expansion joint 32. Alternatively, some support plates 3 can have end plates 34, while other support plates 3 can be without end plates 34.
[0053] Fourth implementation example Figure 10 As shown, with Figure 9 The difference lies in that a plastic cap 4 is provided at the end of the end plate 34, which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the end plate 34. The principle is the same as in the second embodiment, and will not be elaborated here.
[0054] Fifth implementation example Figure 11 As shown, the support plate 3 is welded with insulation nails 5, which are embedded in the insulation lining 2; the insulation nails 5 are V-shaped nails, Y-shaped nails, or straight nails. Similarly, the ends of the insulation nails 5 may also have plastic caps 4 to leave expansion space between the insulation nails 5 and the insulation lining 2.
[0055] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0056] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0057] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
Claims
1. A furnace with a shock-absorbing lining support, comprising a modular furnace wall, the modular furnace wall comprising a steel structure (1) and a heat-insulating lining (2) fixed to the inner side of the steel structure (1), characterised in that: The steel structure (1) is fixed with a support plate (3), which supports the bottom of the insulation lining (2). The support plate (3) is also provided with a side plate (31), which is inserted into the insulation lining (2).
2. A furnace as claimed in claim 1, wherein: The cross-section of the support plate (3) is U-shaped, which includes a plate body (33) supporting the end face of the insulation lining (2) and two side plates (31) embedded in the insulation lining (2).
3. A furnace as claimed in claim 2, wherein: A plastic cap (4) is provided at the end of the side plate (31), which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the side plate (31).
4. A furnace as defined in claim 2, wherein: The free end of the support plate (3) is provided with an end plate (34), which is inserted into the insulation lining (2).
5. A furnace as claimed in claim 4, wherein: The end of the end plate (34) is provided with a plastic cap (4), which vaporizes after reaching a preset temperature to leave an expansion gap at the end of the end plate (34).
6. A furnace as claimed in claim 1 or 2, wherein: Two or more support plates (3) are arranged side by side.
7. A furnace as defined in claim 1, wherein: The top of the thermal insulation lining (2) is also provided with the aforementioned support plate (3).
8. A furnace with a shock absorbing liner support according to claim 1, characterized in that: The side of the side plate (31) is arranged facing the steel structure (1).
9. A furnace as defined in claim 1, wherein: The side panel (31) has an expansion joint (32), which is rectangular, wavy, or trapezoidal.
10. The furnace of claim 1 wherein: The support plate (3) is welded with insulation nails (5), which are embedded in the insulation lining (2); The insulation nail (5) is a V-shaped nail, a Y-shaped nail, or a straight nail.