Honeycomb ceramic heat accumulator with slotted holes

Abstract

The utility model relates to the technical field of ceramic products, in particular to a slotted hole honeycomb ceramic heat accumulator which comprises a supporting outer frame and slotted holes formed in the supporting outer frame. The supporting outer frame comprises 1-3 rows of rectangular holes arranged around the slotted hole in the radial direction. The cross-sectional area of the rectangular hole is at least less than half of the cross-sectional area of the slotted hole; a plurality of slotted hole bulges are arranged in each slotted hole; a clamping groove protrusion is arranged on the outer side of the supporting outer frame. The clamping groove protrusions between the adjacent slotted hole honeycomb ceramic heat accumulators define splicing holes. The slotted hole honeycomb ceramic heat accumulator has the advantages that after the slotted hole honeycomb ceramic heat accumulator is assembled through the clamping groove protrusions, vent holes of a certain size are reserved between the outer walls, and the rectangular holes of the supporting outer frame enable the structure of the supporting outer frame to be more stable and firmer. The design of the clamping groove protrusions and the groove holes of the supporting outer frame enables the gas distribution capacity in the heat accumulator to be kept, the defect that local pressure drop is too high is overcome, and the heat efficiency of the system is improved.

Description

Technical Field

[0001] This utility model relates to the field of ceramic product technology, and in particular to a slotted honeycomb ceramic heat storage body. Background Technology

[0002] As a core component of regenerative combustion furnaces and industrial waste gas treatment systems, the performance of honeycomb ceramic regenerators directly affects the system's thermal efficiency and operational stability. Traditional honeycomb ceramic regenerators are mostly made of silicon-alumina materials and manufactured using a dry molding process. They are widely used in various heating furnaces, hot blast stoves, heat treatment furnaces, pyrolysis furnaces, baking ovens, melting furnaces, soaking furnaces, and oil / gas boilers in industries such as steel, machinery, building materials, petrochemicals, and non-ferrous metallurgy. However, traditional honeycomb ceramic regenerators have many significant drawbacks that limit their practical application effectiveness.

[0003] First, the outer wall of traditional honeycomb ceramic heat storage elements is a smooth plane, which is prone to distortion and deformation during installation and use due to thermal expansion or mechanical stress. This results in redundant spaces without pore channels between adjacent cells. This deformation not only affects the overall structural stability of the heat storage element but also blocks the vents between upper and lower layers, increasing local airflow resistance, causing uneven airflow distribution, and raising the system pressure drop. Second, the internal structure of traditional honeycomb ceramics is simple, mostly consisting of a single square channel structure, lacking effective airflow redistribution capabilities. When local channels are blocked, airflow cannot be effectively diverted to adjacent channels, leading to a sharp increase in local pressure drop and a decrease in overall heat exchange efficiency.

[0004] Furthermore, traditional honeycomb ceramic heat regenerators face limitations in material selection and processing. Silicon-aluminum materials require the addition of plasticizers and other organic additives to improve formability, but these additives can lead to poor product density, rough surfaces, and easy adsorption of particulate impurities such as silica and titanium dioxide from exhaust gases, causing blockage of pore channels and a gradual decline in thermal efficiency. Simultaneously, dry molding processes easily result in uneven internal pore distribution, further exacerbating airflow turbulence. These problems severely restrict the service life, thermal efficiency, and application range of traditional honeycomb ceramic heat regenerators, necessitating a novel honeycomb ceramic heat regenerator to overcome these technical bottlenecks. Utility Model Content

[0005] Existing technologies suffer from problems such as the outer wall of honeycomb ceramic heat storage devices being prone to twisting and deformation, a simple internal structure, poor material properties, and insufficient stress resistance. Therefore, to address these issues, this invention provides a novel slotted honeycomb ceramic heat storage device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a slotted honeycomb ceramic heat storage body is provided, including a supporting outer frame and slots disposed in the supporting outer frame;

[0007] The supporting outer frame includes 1-3 rows of rectangular holes arranged radially around the slot; the cross-sectional area of ​​the rectangular holes is at least less than half the cross-sectional area of ​​the slot.

[0008] Each of the slots is provided with multiple slot protrusions; the outer side of the support frame is provided with a slot protrusion.

[0009] The slotted protrusions between adjacent honeycomb ceramic heat storage elements form a splicing hole.

[0010] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the supporting outer frame includes a row of rectangular holes surrounding the slots.

[0011] Furthermore, in the above-mentioned slotted honeycomb ceramic heat storage body, the length of the slotted honeycomb ceramic heat storage body is 100mm~300mm, the width is 100mm~300mm, and the height is 35mm~300mm.

[0012] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the height of the slot protrusion protruding from the outer wall is 0.5mm-2.5mm.

[0013] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the distance between adjacent slot protrusions is 1.5mm-12.5mm.

[0014] Furthermore, in the above-mentioned slotted honeycomb ceramic heat storage body, the slots are rectangular.

[0015] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, 2-20 slotted protrusions are provided in the slots.

[0016] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slotted protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a circular hole.

[0017] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slot protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a hexagonal hole.

[0018] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slotted protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a square hole.

[0019] The beneficial effects of this utility model are as follows: In the slotted honeycomb ceramic heat storage body of this utility model, the slot protrusions allow for ventilation holes (the splicing holes formed by the slot protrusions) of a certain size to be left between the outer walls of the assembled slotted honeycomb ceramic heat storage body. Furthermore, the supporting outer frame includes rectangular holes, the cross-sectional area of ​​which is at least less than half the cross-sectional area of ​​the slot holes. These features make the structure of the supporting outer frame more stable and robust.

[0020] Specifically, the slotted honeycomb ceramic heat storage body has the following advantages: 1. It overcomes the shortcomings of traditional slotted honeycomb ceramic heat storage bodies, which lack vents on the outer wall, leading to increased airflow resistance and uneven airflow distribution. This reduces local gas pressure drop, resulting in more uniform airflow distribution and improved system thermal efficiency. 2. The use of high-silica materials and wet molding processes improves product density, reduces the adhesion of gaseous impurities such as silica and titanium dioxide during use, reduces gas channel blockage, and simultaneously improves product thermal efficiency. 3. The internal slotted structure not only increases the specific surface area of ​​the heat storage body but also allows for airflow separation while retaining the ability to redistribute, reducing local pressure drop and improving system heat exchange efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the slotted honeycomb ceramic heat storage body according to a specific embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A;

[0023] Label Explanation:

[0024] 1. Support frame; 11. Rectangular hole; 12. Slot protrusion; 2. Slot hole; 21. Slot hole protrusion. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] This utility model provides a slotted honeycomb ceramic heat storage body, including a supporting outer frame and slots disposed in the supporting outer frame;

[0027] The supporting outer frame includes 1-3 rows of rectangular holes arranged radially around the slot; the cross-sectional area of ​​the rectangular holes is at least less than half the cross-sectional area of ​​the slot.

[0028] Each of the slots is provided with multiple slot protrusions; the outer side of the support frame is provided with a slot protrusion.

[0029] The slotted protrusions between adjacent honeycomb ceramic heat storage elements form a splicing hole.

[0030] The beneficial effects of this utility model are as follows: In the slotted honeycomb ceramic heat storage body of this utility model, the slot protrusions allow for ventilation holes of a certain size to be left between the outer walls after the slotted honeycomb ceramic heat storage body is assembled. Furthermore, the supporting outer frame includes rectangular holes; the cross-sectional area of ​​the rectangular holes is at least less than half the cross-sectional area of ​​the slot holes; the above-mentioned features make the structure of the supporting outer frame more stable and robust.

[0031] Specifically, the slotted honeycomb ceramic heat storage body has the following advantages: 1. It overcomes the shortcomings of traditional slotted honeycomb ceramic heat storage bodies, which lack vents on the outer wall, leading to increased airflow resistance and uneven airflow distribution. This reduces local gas pressure drop, resulting in more uniform airflow distribution and improved system thermal efficiency. 2. The use of high-silica materials and wet molding processes improves product density, reduces the adhesion of gaseous impurities such as silica and titanium dioxide during use, reduces gas channel blockage, and simultaneously improves product thermal efficiency. 3. The internal slotted structure not only increases the specific surface area of ​​the heat storage body but also allows for airflow separation while retaining the ability to redistribute, reducing local pressure drop and improving system heat exchange efficiency.

[0032] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the supporting outer frame includes a row of rectangular holes surrounding the slots.

[0033] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the length of the slotted honeycomb ceramic heat storage body is 100mm~300mm, the width is 100mm~300mm, and the height is 35mm~300mm.

[0034] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the height of the slot protrusion protruding from the outer wall is 0.5mm-2.5mm.

[0035] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the distance between adjacent slot protrusions is 1.5mm-12.5mm.

[0036] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slots are rectangular.

[0037] As can be seen from the above description, the slot is rectangular and has a slot protrusion, which makes the ceramic heat storage body have high thermal efficiency.

[0038] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, 2-20 slotted protrusions are provided in the slots.

[0039] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slotted protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a circular hole.

[0040] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slot protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a hexagonal hole.

[0041] Furthermore, in the aforementioned slotted honeycomb ceramic heat storage body, the slotted protrusions between adjacent slotted honeycomb ceramic heat storage bodies form a square hole.

[0042] Example 1

[0043] Please refer to Figure 1 and Figure 2A slotted honeycomb ceramic heat storage body includes: a supporting outer frame 1 and slots 2 disposed within the supporting outer frame 1;

[0044] The supporting outer frame 1 includes a row of rectangular holes 11 arranged around the slot; the cross-sectional area of ​​the rectangular holes 11 is at least less than half the cross-sectional area of ​​the slot 2;

[0045] Each of the slots 2 is provided with multiple slot protrusions 21; the outer side of the support frame 1 is provided with a slot protrusion 12;

[0046] The slot protrusions 12 between adjacent slotted honeycomb ceramic heat storage elements form a splicing hole.

[0047] Support frame 1: A rectangular frame made of high-silica material, wherein the silica content of the high-silica material is 65% to 80%;

[0048] The support structure formed by the slots: multiple support ribs are set inside the outer frame to enhance the structural strength, and the support ribs are distributed in a grid pattern;

[0049] Multiple inner wall panels are provided inside the supporting outer frame 1 to separate and form airflow channels. The inner wall panels are provided with 2 to 20 slotted protrusions 21. The slotted protrusions 21 are integrally formed with the inner wall panels. The length of the slotted protrusions 21 is 0.5 to 2.5 mm, the thickness is 0.5 to 1.5 mm, and the spacing is 1.5 to 12.5 mm.

[0050] The outer wall structure supporting the outer frame 1 includes a slot protrusion 12 on the outer side of the outer frame. The height of the slot protrusion 12 is 0.5 to 2.5 mm, which is used to cooperate with the slot protrusion 12 of the adjacent slotted honeycomb ceramic heat storage body to form a splicing hole.

[0051] The material used in the slotted honeycomb ceramic heat storage body has been changed from the silicon-aluminum material of the prior art to the high silicon material (silica content 65%~80%) of this application, and the molding process has been changed to wet molding. There is no need to add plasticizers and other organic additives to the material, thereby improving the density of the product; reducing the adhesion of gaseous impurities such as silica and titanium dioxide during use, reducing gas channel blockage, and improving the thermal efficiency of the product.

[0052] The assembly method of the slotted honeycomb ceramic heat storage body is as follows:

[0053] 1) Align the slot protrusions of adjacent slotted honeycomb ceramic heat storage elements and assemble them in a nested manner to obtain the slotted honeycomb ceramic heat storage element product.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A slotted honeycomb ceramic heat storage body, characterized in that, Includes a supporting outer frame and slots disposed within the supporting outer frame; The supporting outer frame includes 1-3 rows of rectangular holes arranged radially around the slot; the cross-sectional area of ​​the rectangular holes is at least less than half the cross-sectional area of ​​the slot. Each of the slots is provided with multiple slot protrusions; the outer side of the support frame is provided with a slot protrusion. The slotted protrusions between adjacent honeycomb ceramic heat storage elements form a splicing hole.

2. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The supporting frame includes a row of rectangular holes surrounding the slot.

3. The slotted honeycomb ceramic heat storage body according to claim 2, characterized in that, The slotted honeycomb ceramic heat storage body has a length of 100mm~300mm, a width of 100mm~300mm, and a height of 35mm~300mm.

4. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The height of the card slot protrusion protruding from the outer wall is 0.5mm-2.5mm.

5. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The distance between adjacent card slot protrusions is 1.5mm-12.5mm.

6. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The slot is rectangular.

7. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The slot has 2-20 slot protrusions.

8. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The slotted protrusions between adjacent honeycomb ceramic heat storage elements form a circular hole.

9. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The slot protrusions between adjacent honeycomb ceramic heat storage elements form a hexagonal hole.

10. The slotted honeycomb ceramic heat storage body according to claim 1, characterized in that, The slotted protrusions between adjacent honeycomb ceramic heat storage elements form a square hole.

Images