Box body structure of heat storage box

Abstract

The utility model discloses a box body structure of a heat storage box, which belongs to the technical field of heat storage boxes and comprises a heat storage box body, a first flue gas inlet pipe is arranged at the bottom of the heat storage box body, a second flue gas inlet pipe is arranged on the upper portion of the heat storage box body, a low-temperature cavity and a high-temperature cavity are arranged in the heat storage box body, and a plurality of supporting legs are arranged at the bottom of the heat storage box body. A supporting net plate is arranged on the supporting legs, a plurality of low-temperature heat storage assemblies are arranged on the supporting net plate and located in the low-temperature cavity, and a plurality of sets of high-temperature heat storage assemblies are arranged above the low-temperature heat storage assemblies and located in the high-temperature cavity. The heat storage efficiency can be prevented from being affected by part of accumulated dust generated in the heat storage process of smoke through the heat storage box, and the heat storage efficiency of the heat storage box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat storage boxes, in particular to a box structure of a heat storage box. Background Art

[0002] The heat storage box is a waste heat recovery device that exchanges heat through the heat storage and heat release of the medium. Its main structures include walls, flues, supporting grate arches, etc. Its internal structure and material are the key factors affecting the heat recovery efficiency and process characteristics. The heat storage box mainly uses heat storage balls or honeycombs to achieve the effect of heat storage and energy saving. The state of the heat storage body has a vital influence on the heat storage effect. The temperature of the low-temperature air is preheated to a temperature close to that in the furnace. Compared with the traditional combustion process, its biggest feature is that it saves fuel and reduces the emission of carbon dioxide and nitrogen compounds. The heat storage performance of the heat storage box directly affects the energy saving of the combustion technology. In order to ensure the heat storage capacity of the heat storage box,

[0003] However, in the prior art, in order to ensure the heat storage capacity of the heat storage box, the combustion air passing through it can be preheated to a temperature close to that in the furnace. In actual production, when the production time of the commonly used heat storage box is too long, some ash generated during the heat storage process of the flue gas passing through the heat storage box will affect the heat storage efficiency, seriously reducing the heat storage function of the heat storage box, and the entire heat storage box needs to be replaced regularly. Utility Model Content

[0004] The purpose of the utility model is to provide a box structure of a heat storage box to solve at least one aspect of the problems and defects raised in the above background technology.

[0005] Provided is a box structure of a heat storage box, comprising a heat storage box, wherein a second smoke inlet pipe is arranged at the upper part of the heat storage box, a second smoke inlet pipe is arranged at the bottom of the heat storage box, a low-temperature cavity and a high-temperature cavity are arranged in the heat storage box, a plurality of supporting feet are arranged at the bottom of the inner wall of the heat storage box, a plurality of supporting feet are arranged on each of the supporting mesh plates, a plurality of groups of low-temperature heat storage components are arranged on the supporting mesh plates, and the plurality of groups of low-temperature heat storage components are located in the low-temperature cavity;

[0006] A plurality of groups of low-temperature heat storage components, and a plurality of groups of high-temperature heat storage components are located in the high-temperature cavity.

[0007] Furthermore, the inner wall of the heat storage box is provided with a heat insulating refractory material, which is made of lightweight, high-strength heat insulating materials such as ceramic fibers, and can effectively reduce heat conduction, thereby effectively maintaining the internal temperature of the heat storage box.

[0008] Furthermore, the supporting mesh plate includes a metal frame plate, which is arranged on a supporting foot. A plurality of metal strips are arranged on the metal frame plate, and a low-temperature heat storage component is arranged between two adjacent metal strips. The design of the supporting mesh plate not only takes into account the structural stability and thermal conductivity performance, but also ensures the uniform distribution and convenient maintenance of the low-temperature heat storage components.

[0009] Furthermore, the low-temperature heat storage component includes a plurality of grate bricks, which are equidistantly arranged on the metal bar along the length direction, and a plurality of ventilation mesh holes are arranged on the grate bricks. The design of using grate bricks as the low-temperature heat storage component, combined with the setting of the ventilation mesh holes, can effectively improve the heat storage efficiency, enhance the stability and maintainability of the component, and is suitable for various low-temperature heat storage application scenarios.

[0010] Furthermore, the ventilation mesh is hexagonal, and the design of the hexagonal ventilation mesh is more suitable for improving ventilation efficiency, enhancing structural stability and preventing blockage, so that the grate brick can better play its heat storage function as a low-temperature heat storage component.

[0011] Furthermore, the high-temperature heat storage component includes a plurality of heat storage balls, which are equidistantly arranged in the heat storage box along the length direction. The design of using heat storage balls and setting gaps can achieve efficient heat conduction and uniform heating effect, while improving the stability and maintainability of the component.

[0012] Furthermore, the material of the heat storage ball is corundum. Corundum as a heat storage material has excellent high temperature resistance, wear resistance, chemical stability and thermal conductivity, is suitable for high temperature heat storage components, and can effectively improve heat storage efficiency and stability.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the heat storage box is in use, the flue gas generated by the combustion in the furnace is discharged and enters the heat storage box body from the first flue gas inlet pipe, and the flue gas quickly enters the high-temperature cavity. The gaps between the heat storage balls in each high-temperature heat storage component are large, and the flow area of ​​the flue gas is large. When the flue gas passes through the high-temperature heat storage component, the heat carried by the flue gas passing through the high-temperature cavity is reduced, and the temperature is reduced. Then, the flue gas with a lower temperature enters the low-temperature cavity, and the low-temperature heat storage component installed in the low-temperature cavity performs heat storage, so that the flue gas with a lower temperature is fully in contact with the low-temperature heat storage component, which is convenient for sufficient heat exchange between the two, thereby reducing the pressure loss of the flue gas in the high-temperature cavity and ensuring that the low-temperature cavity achieves sufficient heat storage.

[0015] During the smoke exhaust and heat storage process, the gap between the heat storage balls in the high-temperature heat storage component is large. At the same time, when the high-temperature heat storage component contacts the low-temperature heat storage component, it will not cause blockage in the holes to reduce the air permeability, and the heat storage balls in the high-temperature heat storage component will continue to vibrate with the wind direction, and the impurities and dust that are not easy to adhere to, after reversing, the flame-retardant air is blown into the furnace from the low-temperature cavity from the second flue gas pipe, and the impurities adhering to the low-temperature heat storage component and the ash impurities of the high-temperature heat storage component are blown into the heating furnace from the first flue gas inlet pipe in the reverse direction. Since the temperature inside the low-temperature heat storage component is relatively low, the impurities are not easy to melt and adhere, and will be discharged downward through the hexagonal holes of the grate bricks in the low-temperature heat storage component, thereby reducing blockage and improving the heat storage capacity, avoiding the partial ash accumulation generated during the heat storage process of the flue gas passing through the heat storage box, affecting the heat storage efficiency, and affecting the heat storage function of the heat storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structural section of a box structure of a heat storage box;

[0018] Figure 2 The figure is a schematic diagram of a supporting mesh structure of a box structure of a heat storage box.

[0019] In the figure: 1. heat storage box; 11. low-temperature chamber; 12. high-temperature chamber; 2. first flue gas inlet pipe; 3. second flue gas inlet pipe; 4. supporting feet; 5. supporting mesh plate; 51. metal frame plate; 52. metal strip; 6. low-temperature heat storage component; 61. grate brick; 611. ventilation mesh; 7. high-temperature heat storage component; 71. heat storage balls; 8. heat-insulating refractory material. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-2 As shown, in the embodiment of the utility model, a box structure of a heat storage box includes a heat storage box 1, a first smoke inlet pipe 2 is arranged on the upper part of the heat storage box 1, a second smoke inlet pipe 3 is arranged on the bottom of the heat storage box 1, a low-temperature chamber 11 and a high-temperature chamber 12 are arranged in the heat storage box 1, a plurality of supporting feet 4 are arranged at the bottom of the heat storage box 1, a plurality of supporting mesh plates 5 are arranged on the plurality of supporting feet 4, a plurality of low-temperature heat storage components 6 are arranged on the supporting mesh plates 5, and the plurality of low-temperature heat storage components 6 are located in the low-temperature chamber 11; a plurality of high-temperature heat storage components 7 are arranged above the plurality of low-temperature heat storage components 6, and the plurality of high-temperature heat storage components 7 are located in the high-temperature chamber 12;

[0027] When the heat storage box is in use, the flue gas generated by the combustion in the furnace is discharged and enters the heat storage box body 1 from the first flue gas inlet pipe 2, and the flue gas quickly enters the high-temperature chamber 12. Since the high-temperature chamber 12 stores a plurality of high-temperature heat storage components 7, the gaps between the heat storage balls 71 in each high-temperature heat storage component 7 are large, and the flow area of ​​the flue gas is large. When the flue gas passes through the high-temperature heat storage component 7, the heat in the flue gas is transferred to the high-temperature heat storage component 7, and the heat carried by the flue gas passing through the high-temperature chamber 12 is reduced, and the temperature is lowered. Then, the flue gas with lower temperature enters the low-temperature chamber 11. Since the low-temperature heat storage component 6 installed in the low-temperature chamber 11 performs heat storage, the flue gas with lower temperature is fully in contact with the low-temperature heat storage component 6, which facilitates sufficient heat exchange between the two, thereby reducing the pressure loss of the flue gas in the high-temperature section and ensuring sufficient heat storage in the low-temperature chamber 11.

[0028] During the smoke exhaust and heat storage process, the gaps between the heat storage balls 71 in the high-temperature heat storage component 7 are relatively large. At the same time, when the arc-shaped bottom of the heat storage balls 71 in the high-temperature heat storage component 7 contacts with the grate bricks 61 in the low-temperature heat storage component 6, the ventilation mesh 611 will not be blocked, which will reduce the air permeability. In addition, the heat storage balls 71 in the high-temperature heat storage component 7 will continuously vibrate with the wind direction to remove impurities and dust that are not easy to adhere. After the flame retardant air is blown into the furnace from the low-temperature chamber 11 through the second flue gas inlet pipe 3 after switching, the impurities adhering to the low-temperature heat storage component 6 and the smoke ash impurities of the high-temperature heat storage component 7 are blown into the heating furnace from the first flue gas inlet pipe 2. Since the temperature inside the low-temperature heat storage component 6 is relatively low, the impurities are not easy to melt and adhere to the low-temperature heat storage component 6, and will be discharged from the ventilation mesh 611 of each grate brick 61 in the low-temperature heat storage component 6, thereby reducing blockage and improving the heat storage capacity, and avoiding partial ash accumulation generated during the heat storage process of the flue gas passing through the heat storage box to affect the heat storage efficiency.

[0029] In one embodiment, see Figure 1 and Figure 2 As shown, the inner wall of the heat storage box 1 is provided with a heat insulating refractory material 8, and the heat insulating refractory material 8 is made of materials with good heat insulating properties, high temperature resistance and corrosion resistance such as ceramic fiber and rock wool.

[0030] In one embodiment, see Figure 1 and Figure 2As shown, the supporting mesh plate 5 includes a metal frame plate 51, which is arranged on the supporting foot 4. A plurality of metal strips 52 are arranged on the metal frame plate 51, and a low-temperature heat storage component 6 is arranged between two adjacent metal strips 52. The metal frame plate 51, as a supporting structure, can effectively bear the weight of the low-temperature heat storage component 6, ensure the stability of the entire supporting mesh plate 5, and facilitate heat transfer between the low-temperature heat storage component 6 and the supporting mesh plate 5, thereby improving the heat storage efficiency. The arrangement of the metal strips 52 enables the low-temperature heat storage component 6 to be evenly distributed on the supporting mesh plate 5, effectively utilizing the entire space and maximizing the heat storage capacity of the heat storage box. The arrangement space between the two metal strips 52 allows for convenient installation, disassembly and maintenance of the low-temperature heat storage component 6, which helps to improve the maintainability of the equipment.

[0031] In one embodiment, see Figure 1 and Figure 2 As shown, the low-temperature heat storage component 6 includes a plurality of grate bricks 61, on which a plurality of ventilation meshes 61 are arranged. The grate bricks 61 are usually made of a material with a high heat capacity and can effectively absorb and release heat, which makes the grate bricks 61 an ideal low-temperature heat storage medium and can stably maintain the heat storage effect when the temperature changes. The ventilation meshes 611 are arranged on the grate bricks 61, which helps to improve the air circulation efficiency. The ventilation meshes 611 allow air to flow through the grate bricks 61 more effectively and exchange heat with its surface, thereby accelerating the transfer and absorption of heat.

[0032] In one embodiment, see Figure 1 and Figure 2 As shown, the ventilation mesh 611 of the grate brick 61 is hexagonal, and the design of the ventilation mesh 611 may be more suitable for improving ventilation efficiency, enhancing structural stability and preventing blockage, so that the low-temperature heat storage assembly 6 composed of multiple grate bricks 61 can better perform the heat storage function.

[0033] In one embodiment, see Figure 1 and Figure 2 As shown, the high-temperature heat storage component 7 is a plurality of heat storage balls 71, which are arranged equidistantly in the heat storage box 1 along the length direction. The gap design between the heat storage balls 71 makes it easier to clean and maintain the heat storage component. The existence of the gap makes it easier to remove dust and impurities. The heat storage balls 71 are arranged equidistantly in the length direction, which helps to make the high-temperature heat storage component 7 evenly heated in the entire heat storage box 1. This ensures that the temperature distribution in the entire box is uniform, improves the utilization efficiency of heat, can achieve efficient heat conduction and uniform heating effect, and at the same time improves the stability and maintainability of the component.

[0034] In one embodiment, see Figure 1 and Figure 2 As shown, the material of the heat storage ball 71 is corundum, which is a high-temperature refractory material that can withstand extremely high temperatures without melting or deformation. This makes the heat storage ball 71 made of corundum perform well in a high-temperature heat storage environment and can maintain stable performance for a long time. Corundum has high thermal conductivity and can quickly absorb and release heat. This allows the corundum ball to effectively conduct heat and improve heat storage efficiency.

[0035] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A heat storage box structure, comprising a heat storage box (1), characterized in that: The upper part of the heat storage box (1) is provided with a first smoke inlet pipe (2), the bottom of the heat storage box (1) is provided with a second smoke inlet pipe (3), a low-temperature chamber (11) and a high-temperature chamber (12) are provided in the heat storage box (1), a plurality of supporting legs (4) are provided at the bottom of the inner wall of the heat storage box (1), a plurality of supporting legs (4) are provided on each of the supporting legs (4), a plurality of groups of low-temperature heat storage components (6) are provided on the supporting mesh plates (5), and the plurality of groups of low-temperature heat storage components (6) are located in the low-temperature chamber (11); A plurality of groups of high-temperature heat storage components (7) are arranged above the plurality of groups of low-temperature heat storage components (6), and the plurality of groups of high-temperature heat storage components (7) are located in the high-temperature cavity (12).

2. The box structure of a heat storage box according to claim 1, characterized in that: The inner wall of the heat storage box (1) is provided with a heat insulating refractory material (8).

3. The box structure of a heat storage box according to claim 1, characterized in that: The supporting mesh plate (5) comprises a metal frame plate (51), the metal frame plate (51) being arranged on a supporting foot (4), a plurality of metal strips (52) being arranged on the metal frame plate (51), and a low-temperature heat storage component (6) being arranged between two adjacent metal strips (52).

4. The box structure of a heat storage box according to claim 1, characterized in that: The low-temperature heat storage component (6) comprises a plurality of grate bricks (61), wherein the plurality of grate bricks (61) are arranged on the metal strip (52) at equal intervals along the length direction, and the grate bricks (61) are provided with a plurality of ventilation mesh holes (611).

5. The box structure of a heat storage box according to claim 4, characterized in that: The ventilation mesh (611) is hexagonal.

6. The box structure of a heat storage box according to claim 1, characterized in that: The high-temperature heat storage component (7) comprises a plurality of heat storage balls (71), and the plurality of heat storage balls (71) are arranged in the heat storage box (1) at equal intervals along the length direction.

7. The box structure of a heat storage box according to claim 6, characterized in that: The heat storage ball (71) is made of corundum.

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