Integral slotting type honeycomb ceramic heat accumulator

Abstract

The utility model discloses an integral slotting type honeycomb ceramic heat accumulator which comprises a plurality of split bodies 3, connecting bodies 6 which are integrally formed with the adjacent split bodies are arranged among the split bodies, the cross section of each connecting body is circular or polygonal, airflow circulation notches 4 are formed among the split bodies, and the airflow circulation notches 4 are communicated with the split bodies 3. Vertical through linear heat storage channels 5 are arranged in the split bodies and the connecting body at intervals, heat storage bosses 8 are annularly arranged on the inner surfaces of the linear heat storage channels at intervals, and a supporting stand 7 is arranged on at least one of the split bodies at the upper end or the lower end. According to the honeycomb ceramic heat accumulator, the connection strength of the honeycomb ceramic heat accumulator is greatly improved, and the service life is prolonged; the airflow circulation notches are formed between the resplitting bodies, so that the airflow circulation resistance is greatly reduced; and a plurality of heat storage bosses are arranged in the linear heat storage channel, so that the contact area between gas and the heat storage body is increased, and the heat storage effect is improved.

Description

Technical Field

[0001] The utility model relates to high-temperature honeycomb ceramic heat storage device, in particular to an integrally slotted honeycomb ceramic heat storage device. Background Art

[0002] Honeycomb ceramic heat storage body is the key and core component of heat storage high temperature combustion technology (HTAC technology). It has been widely used in various pusher heating furnaces, walking beam heating furnaces, heat treatment furnaces, forging furnaces, melting furnaces, ladle / tundish bakers, soaking furnaces, radiation tube burners, bell furnaces, blast furnace hot air furnaces in the metallurgical machinery industry; various ceramic kilns and various glass kilns in the building materials industry; various tubular heating furnaces, cracking furnaces and other industrial furnaces in the petrochemical industry. Honeycomb ceramic heat storage body materials include mullite, cordierite, cordierite-mullite, corundum-mullite, high alumina and other materials. Honeycomb ceramic heat storage body has significant advantages such as large heat exchange area per unit volume, fast heat transfer, small airflow resistance, shallow heat penetration depth and high thermal efficiency. The hole types of honeycomb ceramic heat storage body include square, rectangle, regular hexagon, circle, triangle, etc. Application of honeycomb ceramic heat storage body: The principle of thermal storage incineration system (RTO) is to use ceramic heat storage body to store the heat generated when organic waste gas is decomposed, and use the heat energy stored in ceramic heat storage body to decompose the untreated organic waste gas, so as to achieve high thermal efficiency. In order to further increase the contact surface area and heat storage effect, the existing honeycomb ceramic heat storage body is bonded into a whole by a binder through multiple monomers. However, this structural method has the following disadvantages: the use of adhesives to connect monomers will not only block the heat storage channel and increase the airflow resistance, but also the adhesive will loosen and fall off after being used in a high temperature environment for a long time, causing the honeycomb ceramic heat storage body to be damaged. Utility Model Content

[0003] In view of the problems existing in the honeycomb ceramic heat storage body in the above-mentioned prior art, the utility model provides an integral slotted honeycomb ceramic heat storage body which reduces airflow resistance, increases heat storage contact specific surface area, and increases product service life.

[0004] The technical problem to be solved by the utility model and the technical solution adopted are: an integrally slotted honeycomb ceramic heat storage body, comprising a plurality of split bodies, between which are arranged connecting bodies integrally formed with adjacent split bodies, the cross-section of the connecting bodies is circular or polygonal, and air flow flow slots are provided between the split bodies, and straight heat storage channels that pass through the split bodies and the connecting bodies are arranged at intervals from top to bottom, and heat storage bosses are arranged at annular intervals on the inner surface of the straight heat storage channels, and at least one of the split bodies at the upper end or the lower end is provided with a supporting column.

[0005] Furthermore, the cross-section of the linear heat storage channel is square, circular or triangular.

[0006] Furthermore, the cross section of the heat storage boss is polygonal.

[0007] The beneficial effects of the utility model are as follows: 1. By integrally forming the split body and the connecting body and then mechanically cutting out the air flow channel, the connection strength of the honeycomb ceramic heat storage body is greatly increased, and the shedding caused by the different thermal expansion coefficients caused by the different raw materials of the adhesive is prevented, thereby improving the service life; 2. By arranging air flow grooves between the split bodies, the air flow resistance is greatly reduced; 3. A plurality of heat storage bosses are arranged in the linear heat storage channel, which increases the contact area between the gas and the heat storage body and improves the heat storage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is the main structural diagram of the honeycomb ceramic heat storage body in the prior art.

[0009] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0010] Figure 3 It is a main structural diagram of the utility model.

[0011] Figure 4 yes Figure 3 AA section view of the first structure diagram,

[0012] Figure 5 yes Figure 3 The second structural diagram of AA section view,

[0013] Figure 6 yes Figure 3 AA section view of the third structure diagram,

[0014] Figure 7 yes Figure 4 The enlarged structural diagram at B in FIG.

[0015] In the figure, 1, monomer; 2, adhesive layer; 3, split body; 4, air flow slot; 5, straight heat storage channel; 6, connector; 7, support column; 8, heat storage boss. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in combination with specific embodiments according to the accompanying drawings.

[0017] like Figure 1 As shown, in the prior art, a honeycomb ceramic heat storage body is formed by bonding a plurality of monomers 1 together through a bonding agent layer 2. Figure 2 , 3In the embodiment, the integral slotted honeycomb ceramic heat storage body comprises a plurality of split bodies 3, between which are disposed connectors 6 integrally formed with adjacent split bodies, wherein the cross section of the connector is square, regular shuttle or circular (such as Figure 4 , 5 , 6, or other polygons), air flow slots 4 are provided between the split bodies, and linear heat storage channels 5 are provided in the split bodies and the connecting body, and heat storage bosses 8 are provided at intervals on the inner surface of the linear heat storage channels (such as Figure 7 As shown, the cross-section of the heat storage boss is preferably polygonal), the heat storage boss extends in the axial direction of the straight heat storage channel, and a support column 7 is provided on at least one of the split bodies at the upper end or the lower end.

[0018] Technical parameters of the utility model: specifications 47X47X47mm, 50X50X50mm, 100X100X100mm100X150X150mm, 150X150X150mm, etc., pore number 43X43, 40X40, 25X25, etc., water absorption rate less than 2%, apparent porosity <40%, bulk density>0.88g / cm 3 , compressive strength (C axis min)> 20MPa, thermal shock resistance (air cooling)> 400℃, maximum operating temperature> 1530℃, thermal expansion coefficient (X10 -6 / ℃)(20-800℃)2.6.

[0019] A specific preparation and processing method of the utility model is briefly described as follows: 1. The heat storage ceramic raw materials (including mullite, cordierite, cordierite-mullite, corundum-mullite, high alumina, etc.) and auxiliary materials are dried into spherical particles by a spray drying method; 2. The granular powder is fully stirred and mixed into a spherical powder; 3. The spherical powder after stirring and mixing is pushed into a molding cavity for compression molding. The mold core in the mold is designed according to the shape of the heat storage boss, and the honeycomb ceramic heat storage body is demolded into a body and put into a kiln for baking; 4. After baking and cooling, the air flow slot is machined through mechanical cutting to obtain the integral slotted honeycomb ceramic heat storage body.

[0020] The above implementation modes are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to specific embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of protection of the claims of the utility model.

Claims

1. An integrally slotted honeycomb ceramic heat storage body, characterized in that: The invention comprises a plurality of split bodies (3), wherein connecting bodies (6) formed integrally with adjacent split bodies (3) are arranged between the split bodies (3), wherein the cross section of the connecting bodies (6) is circular or polygonal, and air flow slots (4) are provided between the split bodies, wherein linear heat storage channels (5) extending vertically are arranged at intervals between the split bodies (3) and the connecting bodies (6), and heat storage bosses (8) are arranged at annular intervals on the inner surfaces of the linear heat storage channels (5), and a support column (7) is provided on at least one of the split bodies (3) at the upper end or the lower end.

2. The integrally slotted honeycomb ceramic thermal storage body according to claim 1, characterized in that: The cross section of the linear heat storage channel (5) is square, circular or triangular.

3. The integrally slotted honeycomb ceramic thermal storage body according to claim 1, characterized in that: The cross section of the heat storage boss (8) is polygonal.

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