Honeycomb ceramic heat accumulator with spiral pipe type air inlet structure

Abstract

The utility model discloses a honeycomb ceramic heat accumulator with a spiral pipe type air inlet structure, which comprises a heat accumulator body, a heat accumulation hole and a plurality of air inlet holes are arranged on the heat accumulator body, the forming direction of the heat accumulation hole is perpendicular to the forming direction of each air inlet hole, a heating device is arranged in the heat accumulation hole, and the spiral pipe type air inlet structure is arranged on the heat accumulation hole. A plurality of honeycomb-shaped through holes are regularly formed in the section of the heat accumulator body, the air inlet holes are in a spiral tube shape in the heat accumulator body, and the air inlet holes penetrate through the heat accumulator body. Convection heat exchange is carried out in the spiral pipe structure, and then heat is taken away, so that the temperature of the heat accumulator body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a honeycomb ceramic heat storage body with a spiral tube type air inlet structure. Background Art

[0002] Regenerative combustion technology is an energy-saving and environmentally friendly combustion technology currently widely used in various heating furnaces, hot air furnaces, heat treatment furnaces, cracking furnaces, roasters, melting furnaces, soaking pits, oil and gas boilers, and other kilns in the steel, machinery, building materials, petrochemical, and nonferrous metallurgy industries. The honeycomb ceramic regenerator is the intermediate carrier used by the regenerative burner to recover and utilize waste heat from flue gas. Through the honeycomb ceramic regenerator's periodic heat absorption and heat release, the heat from the high-temperature flue gas is transferred to the room-temperature combustion air or gas, thereby recovering waste heat from the flue gas and preheating the combustion air or gas at high temperature, achieving the dual goals of energy conservation and environmental protection. As a key component of the regenerative burner, the performance of the honeycomb ceramic regenerator directly determines the overall performance of the regenerative burner's waste heat recovery system.

[0003] Existing magnesia bricks are not environmentally friendly and, because they only have a maximum temperature resistance of 600°C, they cannot stably generate high-temperature steam and are therefore unsuitable for use in the steam generation industry. Existing ceramic materials, predominantly circular in pore size, lack sufficient heat exchange area between the air inlet and the ceramic heat storage element, preventing sufficient heat from being removed quickly and producing high-temperature steam.

[0004] Therefore, how to solve the deficiencies in the above-mentioned prior art has become the subject to be studied and solved in this application. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a honeycomb ceramic heat storage body with a spiral tube air inlet structure.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A honeycomb ceramic heat accumulator with a spiral tube air inlet structure includes a heat accumulator body, a heat storage hole and a plurality of air inlet holes are opened on the heat accumulator body, the opening direction of the heat storage hole is perpendicular to the opening direction of each of the air inlet holes, a heating device is installed in the heat storage hole, and a cross section of the heat accumulator body is provided with a plurality of regularly arranged honeycomb through holes; the air inlet holes are spiral tube-shaped inside the heat accumulator body, and each of the air inlet holes passes through the heat accumulator body.

[0008] Furthermore, the heat storage hole is opened in the middle position of the bottom of the heat storage body, and the air inlet holes are regularly arranged and opened in the upper area of the heat storage body, and each air inlet hole is located above the heat storage hole.

[0009] Furthermore, the heating device is an electric heating wire.

[0010] Furthermore, a plurality of grooves are provided on the top of the heat storage body, and a plurality of protrusions are provided on the bottom of the heat storage body for use with the grooves, each protrusion corresponds to each groove one by one, and each heat storage body is detachably connected in the vertical direction through the grooves and the protrusions.

[0011] Furthermore, a mounting block adapted to the heat storage hole is provided on the top of the heat storage body.

[0012] Furthermore, the honeycomb through-holes are in the shape of a regular hexagon or a square.

[0013] Furthermore, the heat storage body is in the shape of a cube or a cuboid.

[0014] Furthermore, the opening of the air inlet is circular, square or triangular.

[0015] Furthermore, the heat storage hole is a tapered hole.

[0016] Compared with the existing technology, the advantages of the present invention are: air enters and exits through the spiral tube-type air inlet aperture, undergoes convective heat exchange within the spiral tube structure, and then takes away the heat, causing the temperature of the heat storage body to drop. Due to the spiral tube structure, the fluid in the spiral tube continuously changes direction during forward movement, causing secondary circulation on the cross section and enhancing heat transfer. The honeycomb ceramic heat storage body has good heat storage and release performance, wear resistance, corrosion resistance, good heat shock resistance, and high heat exchange efficiency. It also has the advantages of saving resources and being green and environmentally friendly. The stacking structure of the heat storage body is simple and stable, and it is not easy to collapse during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Attachment Figure 1 This is a structural diagram of the main view of an embodiment of the present application;

[0019] Attachment Figure 2 This is a schematic diagram of the stacking of the main view of the embodiment of the present application;

[0020] Attachment Figure 3 This is a schematic structural diagram of a side view of an embodiment of the present application;

[0021] Attachment Figure 4 This is a schematic diagram of the stacking of the side view of the embodiment of the present application.

[0022] Description of reference numerals and components in the accompanying drawings:

[0023] 1. Heat storage body; 2. Heat storage hole; 3. Air inlet hole; 4. Groove; 5. Bump; 6. Mounting block. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solution of the present invention through specific implementation methods. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] See attached Figures 1 to 4 As shown, the present application is a honeycomb ceramic heat storage body with a spiral tube air inlet structure, including a heat storage body body 1, on which a heat storage hole 2 and a plurality of air inlet holes 3 are opened. The opening direction of the heat storage hole 2 is perpendicular to the opening direction of each air inlet hole 3. A heating device is installed in the heat storage hole 2. The cross-section of the heat storage body 1 is provided with a plurality of regularly arranged honeycomb through holes. The air inlet holes 3 are spiral tube-shaped inside the heat storage body 1, and each air inlet hole 3 passes through the heat storage body 1.

[0026] The above structure is further described below:

[0027] In this embodiment, the heat accumulator body 1 has a cubic or rectangular structure. A heat storage hole 2 is vertically defined in the center of the bottom portion of the heat accumulator body 1. This hole 2 is used to accommodate a heating device. In this embodiment, the heating device is a heating wire, but this is not limited to an electric heating wire. In other embodiments, the heating device may also be a heating tube, a heating plate, or the like. The shape of the heat storage hole 2 corresponds to the shape of the heating device. The heat accumulator body 1 has multiple air inlet holes 3 defined horizontally. Each air inlet hole 3 is located above the heat storage hole 2 and arranged in a regular pattern. The orientation of each air inlet hole 3 is spatially perpendicular to the orientation of the heat storage hole 2. This prevents direct contact between flue gas and the heating wire within the heat storage hole 2, thereby reducing the lifespan of the heating wire. The size of the heat storage hole 2 is determined by the outer diameter of the heating wire, typically D = 1.05d, where D is the inscribed diameter of the heat storage hole 2 and d is the outer diameter of the heating wire. The number of air inlet holes 3 can be simply calculated based on the cross-sectional area of the heat storage body, that is, N = (200 ~ 600) * S, where S is the cross-sectional area of the heat storage body and N is the number of circular holes. The air inlet hole 3 is in the shape of a spiral tube inside the heat storage body 1, and the air inlet hole 3 runs through the entire heat storage body 1 in the horizontal direction. Since the air inlet hole 3 is a spiral tube structure inside the heat storage body 1, the fluid in the spiral tube continuously changes direction during forward movement, which will cause secondary circulation on the cross section to enhance heat transfer, that is, the spiral tube air inlet aperture, which enhances the convective heat exchange between the air intake and the brick body, and can take away more heat. In this embodiment, the spiral tube structure is similar to the electric heating wire winding structure. The honeycomb ceramic material heat storage body has good heat storage and release performance, wear resistance, corrosion resistance, good heat shock resistance, high heat exchange efficiency, and has the advantages of saving resources and being green and environmentally friendly.

[0028] The top of the heat storage body 1 is provided with a plurality of grooves 4, and the bottom of the heat storage body 1 is provided with a plurality of protrusions 5 for use with the grooves 4. The position of each protrusion 5 corresponds to the position of each groove 4, and each protrusion 5 is correspondingly locked in each groove 4. Therefore, each heat storage body 1 can be detachably connected in the vertical direction through the grooves 4 and protrusions 5. It can be seen that when multiple heat storage bodies 1 are stacked vertically, the protrusions on the bottom of the heat storage body 1 on the upper side can be placed in the grooves on the top of the heat storage body 1 below, ensuring that the stack of heat storage bodies 1 is stable and not prone to collapse.

[0029] A mounting block 6 adapted to the heat storage hole 2 is provided on the top of the heat storage body 1, and the upper and lower heat storage body bodies 1 can form a complete heating wire placement hole.

[0030] Preferably, the shape of the honeycomb through-holes in this embodiment is a regular hexagon or a square.

[0031] Better, see the attached Figure 1 and attached Figure 2 As shown, the shape of the opening of the air inlet hole 3 in this embodiment is circular, and may also be square or triangular.

[0032] Better, see the attached Figure 3 and attached Figure 4 As shown, the heat storage hole 2 in this embodiment is a tapered hole.

[0033] During actual use: the heating wire arranged in the heat storage hole 2 is energized and generates heat, and the heat is radiated into the heat storage body 1. The heat storage body 1 heats up and stores a large amount of heat. Air enters and exits the air inlet hole 3, and conducts convection heat exchange in the spiral tubular structure, thereby taking away the heat and lowering the temperature of the heat storage body 1.

[0034] The air inlet holes 3 of the present application are different from the common round holes and square holes in honeycomb ceramics. The holes in the spiral tube structure can enhance the convective heat transfer between the incoming air and the heat storage body 1, making the heat transfer effect better. Honeycomb ceramic materials are used for solid heat storage boilers, which have high storage temperatures and can produce high-temperature steam for a long time. The heating wire arrangement holes and the air inlet holes 3 are arranged vertically in space, so that the service life of the heating wire is not affected by the incoming air. The storage temperature of this application can exceed 1200℃, which solves the problem that the maximum temperature resistance of magnesium bricks is 600℃.

[0035] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A honeycomb ceramic heat storage body with a spiral tube air inlet structure, characterized in that: The heat storage body comprises a heat storage body, on which a heat storage hole and a plurality of air inlet holes are opened. The opening direction of the heat storage hole is perpendicular to the opening direction of each of the air inlet holes. A heating device is installed in the heat storage hole. The cross section of the heat storage body is provided with a plurality of regularly arranged honeycomb-shaped through holes. The air inlet holes are spirally tube-shaped inside the heat storage body, and each of the air inlet holes passes through the heat storage body.

2. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The heat storage hole is opened in the middle position of the bottom of the heat storage body, and the air inlet holes are regularly arranged and opened in the upper area of the heat storage body, and the air inlet holes are located above the heat storage hole.

3. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The heating device is an electric heating wire.

4. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The top of the heat storage body is provided with a plurality of grooves, and the bottom of the heat storage body is provided with a plurality of protrusions used in conjunction with the grooves, each protrusion corresponds to each groove one by one, and each heat storage body is detachably connected in the vertical direction through the grooves and the protrusions.

5. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 4, characterized in that: A mounting block adapted to the heat storage hole is provided on the top of the heat storage body.

6. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The shape of the honeycomb through holes is a regular hexagon or a square.

7. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The heat storage body is in the shape of a cube or a cuboid.

8. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The opening of the air inlet hole is circular, square or triangular.

9. The honeycomb ceramic heat storage body with a spiral tube air inlet structure according to claim 1, characterized in that: The heat storage hole is a tapered hole.

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