Basalt fiber bundle heat storage chamber for organic gas combustion furnace and all-hydrogen furnace
By using a combination structure of basalt fiber bundle and ceramic insulation module, the problem of low lateral flow rate and high energy consumption in organic gas combustion furnaces and full hydrogen furnaces is solved, and efficient heat transfer and storage is achieved, reducing the Equipment cost and environmentally friendly.
Patent Information
- Application Number
- CN202420250469.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing ceramic heat storage body is low in the longitudinal swept structure and small-hole flow path in organic gas combustion furnaces and full hydrogen furnaces, resulting in low lateral flow velocity, large resistance and high energy consumption. The firing process requires a large amount of energy, which has environmental pollution. question.
Using basalt fiber bundles as heat storage chamber material, a combination structure of mesh grille, ceramic insulation module, steel plate and ceramic balls form multiple superimposed heat storage modules. The basalt fiber bundles are knotted with iron columns or orifice plate fences. , realize efficient heat transfer and storage, and optimize porosity through filling of ceramic balls and insulation cotton.
It improves air flow smoothness and heat exchange efficiency, reduces equipment costs, reduces energy consumption, and is simple and environmentally friendly to produce, and can withstand higher loads and longer life.
Smart Images
Figure CN222352336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of full hydrogen furnaces for gaseous organic combustion and hydrogen application, in particular to a basalt fiber bundle heat storage chamber for organic gas combustion furnaces and full hydrogen furnaces. Background Art
[0002] As we all know, energy conservation and emission reduction has become the theme of the current era, and the combustion treatment of waste gas containing organic gas is an important part of the emission reduction process. The waste gas combustion furnace containing organic gas usually adopts RTO, and its core component is the regenerator filled with honeycomb ceramic regenerator or plate regenerator. The full hydrogen furnace regenerative combustion technology is a more effective energy-saving method in recent years. This technology uses the same regenerator to store the heat carried by high-temperature flue gas, and uses this heat to heat the combustion-supporting air, which plays a role in energy conservation and emission reduction.
[0003] However, the above ceramic heat storage bodies have a longitudinal sweeping structure and a small hole flow channel, so they have a low lateral flow velocity, large resistance and high energy consumption.
[0004] Basalt fiber bundles have good chemical corrosion resistance, excellent corrosion resistance, fire resistance and high temperature stability, high mechanical strength, adaptability to the working environment of heat storage devices, and good heat transfer effect and high energy storage density. Therefore, it is necessary to develop a basalt fiber bundle heat storage chamber suitable for organic gas combustion furnaces and full hydrogen furnaces in order to improve the heat exchange speed and effect. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] In view of the deficiencies of the prior art, the utility model provides a basalt fiber bundle heat storage chamber for an organic gas combustion furnace and a full hydrogen furnace.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a basalt fiber bundle heat storage chamber for an organic gas combustion furnace and a full hydrogen furnace, comprising a heat storage chamber, a mesh grille is provided at the bottom of the heat storage chamber, a basalt fiber bundle heat storage module group is provided above the mesh grille, the basalt fiber bundle heat storage module group is sequentially provided with a ceramic insulation module and a steel plate outward, a ceramic ball is provided in the gap of the ceramic insulation module, the basalt fiber bundle heat storage module group comprises a heat storage module, the heat storage module is provided with a plurality of and is stacked up and down and left and right, the heat storage module is provided with a bottom grille, the heat storage module An iron column or a perforated plate fence is arranged around the bottom grid, a first opening is opened on the perforated plate fence, and a plurality of the first openings are arranged in an array. The heat storage module includes a basalt fiber bundle, which is knotted and connected to the mesh grid and the iron column or the perforated plate fence, and the basalt fiber bundle is wound around the iron column in an S shape and wound upwards. An upper perforated plate is arranged on the top of the heat storage module, and the upper perforated plate is welded to the iron column or the perforated plate fence, and a second opening is opened on the upper perforated plate, and a plurality of the second openings are arranged in an array.
[0009] Furthermore, the utility model is improved in that the heat storage modules are stacked up and down and can be detachably arranged, and ceramic balls are provided in the gaps between the multiple heat storage modules and between the heat storage modules and the ceramic insulation modules, and the diameter of the ceramic balls is 10-30 mm.
[0010] Furthermore, the utility model is improved in that the heat storage chamber has a height of 800-2000 mm, and a length and width of 500-2000 mm respectively.
[0011] Furthermore, the utility model is improved in that the bottom grille has a thickness of 10-30 mm and a side length of the grille holes of 5-30 mm.
[0012] Furthermore, the utility model is improved in that a plurality of grooves are arranged outside the iron column, and the diameter of the iron column is 15-25 mm.
[0013] Furthermore, the utility model is improved in that the diameter of the first opening is 10-30 mm, and the center distance between multiple first openings is 20-50 mm.
[0014] Furthermore, the utility model is improved in that the height of the perforated plate fence is 100-500 mm, the length and width are 100-500 mm respectively, the diameter of the basalt fiber bundle is 5-20 mm, and the interval between the upper and lower layers of the basalt fiber bundle is 5-20 mm.
[0015] Furthermore, the utility model is improved in that the thickness of the upper hole plate is 3-5 mm, the diameter of the second opening is 30-60 mm, and the center distance between multiple second openings is 40-70 mm.
[0016] Furthermore, the utility model is improved in that a ceramic saddle ring is provided between the bottom grid and the heat storage module, and a catalytic brick or a heat storage body is provided on the top of the heat storage module.
[0017] Furthermore, the utility model is improved in that the inner wall of the heat storage chamber and the edge of the heat storage body are fixedly connected by heat insulation cotton and high-temperature glue.
[0018] (III) Beneficial effects
[0019] Compared with the prior art, the utility model provides a basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace, which has the following beneficial effects:
[0020] The basalt fiber bundle regenerator used in the organic gas combustion furnace and the full hydrogen furnace is made of basalt glass fibers woven into a rope shape. There are grooves between adjacent glass fibers, and there are tiny protrusions on the surface of the fiber bundle, which will destroy the heat transfer boundary layer and enhance the heat transfer effect.
[0021] The basalt fiber bundles in the thermal storage module are arranged in such a way that not only the longitudinal airflow in the module is smooth, but also the transverse airflow is smooth, which can overcome the problem of low transverse velocity and uneven airflow distribution in the ceramic module, and the resistance is small;
[0022] The heat storage body needs a firing process, which requires more energy and also produces waste gas emissions. However, the heat storage body of the present invention is simple to manufacture, has no firing process, and is environmentally friendly.
[0023] The basalt fiber bundles of the heat storage module are flexibly arranged, and the porosity range in the module is far beyond that of the honeycomb heat storage body. In the same heat storage chamber, heat storage modules with different porosities can be used alternately according to the needs of flow and heat exchange;
[0024] The basalt fiber bundle and its heat storage module of this structure have good toughness and high strength, can withstand higher loads, and have a long service life. In the same heat storage chamber as the honeycomb heat storage body, a higher flow rate can be used to obtain a higher volume flow rate, thereby reducing equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the iron column type heat storage module of this structure.
[0026] Figure 2 This is a schematic diagram of the orifice plate heat storage module of this structure.
[0027] Figure 3This is the front view of the square basalt fiber bundle heat storage chamber of this structure.
[0028] Figure 4 This is a top view of the fan-shaped basalt fiber bundle heat storage chamber of this structure.
[0029] Figure 5 This is the front view of the basalt fiber bundles and honeycomb ceramic fillings in the thermal storage chamber of this structure.
[0030] The accompanying drawings are marked as follows: 1. iron column type heat storage module; 11. mesh grille; 12. basalt fiber bundle; 13. fence; 131. iron column; 14. upper perforated plate; 2. perforated plate type heat storage module; 132. perforated plate type fence; 3. steel plate; 4. ceramic ball; 5. bottom grille; 6. thermal insulation cotton; 7. heat storage body. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] See also Figure 1-5 :
[0033] Embodiment 1:
[0034] like Figure 1 As shown, an iron column 131 type heat storage module in a basalt fiber bundle 12 heat storage chamber suitable for an organic gas combustion furnace and a full hydrogen furnace comprises: a mesh grille 11 for bearing and fixing at the bottom, and iron columns 131 equidistantly welded around the mesh grille 11 to form a fence 13 around the cubic module; the basalt fiber bundle 12 is knotted and fixed at a corner of the mesh grille 11, and then passes through the bottom of the opposite iron column 131 in an "S" shape, and after covering one layer, it bypasses the adjacent edge and continues to wrap up to the upper layer, and repeats this process, layer by layer, until the entire heat storage module space is filled, and the end is knotted and fixed to the edge iron column 131; the top of the fence 13 is covered with an upper orifice plate 14 for fixing the basalt fiber bundle 12; the bottom grille 5, the basalt fiber bundle 12, the iron column 131, and the upper orifice plate 14 form a heat storage module, and the gas passes through the holes between the basalt fiber bundles 12 from the bottom grille 5 to form a flow channel.
[0035] The heat storage module uses a basalt fiber bundle 12 with a diameter of 10 mm. Iron columns 131 with a diameter of 10 mm and a length of 250 mm are welded around the bottom grid 5 to form four side fences 13 of the heat storage module with a cubic structure, which are used to fix the basalt fiber bundle 12. After the basalt fiber bundle 12 is knotted and fixed at a corner of the bottom grid 5 or at the bottom of the iron column 131, it is interlaced back and forth to bypass the opposite iron column 131. After bypassing one layer, it passes through the adjacent iron column 131 and continues to be wound to the upper layer. The spacing between adjacent layers is 5 mm, and it goes up layer by layer until it reaches the top of the iron column 131, filling the entire heat storage module space. There are multiple grooves on the iron column 131 for fixing the basalt fiber bundle 12 that has been wound from the iron column 131. The upper perforated plate 14 of the heat storage module is 3 mm thick.
[0036] The high-temperature organic gas passes through the bottom grid 5 of the heat storage module and the basalt fiber bundles 12 group, and the heat is absorbed and stored by the basalt fiber bundles 12. Then the low-temperature gas passes through, and the basalt fiber bundles 12 transfer the contained heat to the low-temperature gas, and this cycle is repeated to achieve heat absorption and heat release.
[0037] Embodiment 2:
[0038] like Figure 2 As shown, a perforated plate heat storage module in a basalt fiber heat storage chamber suitable for an organic gas combustion furnace and a full hydrogen furnace comprises: a mesh grille 11 for bearing and fixing at the bottom, a perforated plate fence 132 welded around the bottom grille 5, and the perforated plate fence 132 of a cubic module is formed; a basalt fiber bundle 12 is knotted and fixed at a corner of the bottom grille 5, and then passes through the first opening of the bottom of the relative perforated plate fence 132 in an "S" shape, and after covering one layer, it bypasses the adjacent edge and continues to pass through the first opening of the upper layer, and repeats this process, layer by layer, until the entire heat storage module space is filled, and the end is knotted and fixed on the top of the perforated plate fence 132; the top of the perforated plate fence 132 is covered with an upper perforated plate 14 for fixing the fiber bundle; the bottom grille 5, the basalt fiber bundle 12, the perforated plate fence 132, and the upper perforated plate 14 form a heat storage module, and the gas passes through the holes between the fiber bundle groups from the bottom of the bottom grille 5 to form a flow channel.
[0039] The heat storage module uses a basalt fiber bundle 12 with a diameter of 15 mm. The perforated fence 132 is 500 mm long, 250 mm high, 5 mm thick, with a first opening diameter of 15 mm and a center distance of 30 mm. It is directly welded around the mesh grille 11 to form four side perforated fences 132 of a cubic structure heat storage module, which are used to fix the basalt fiber bundle 12. After the basalt fiber bundle 12 is knotted and fixed at a corner of the bottom grille 5 or at the bottom of the perforated fence 132, it goes back and forth to bypass the opposite perforated fence 132. After bypassing one layer, it passes through the adjacent perforated fence 132 and continues to pass through the first opening of the upper layer and winds upward, layer by layer until it reaches the top of the upper perforated plate 14, filling the entire heat storage module space.
[0040] The high-temperature organic gas passes through the bottom grid 5 and the basalt fiber bundles 12 at the bottom of the thermal storage module, and the heat is absorbed and stored by the basalt fiber bundles 12. Then the low-temperature gas passes through, and the basalt fiber bundles 12 transfer the contained heat to the low-temperature gas, and this cycle is repeated to achieve heat absorption and heat release.
[0041] Embodiment three:
[0042] like Figure 3 As shown, a basalt fiber bundle 12 heat storage chamber suitable for an organic gas combustion furnace and a full hydrogen furnace comprises: the heat storage chamber is composed of cubic heat storage modules stacked up and down and left and right; the heat storage module is as shown in the first embodiment; a plurality of heat storage modules are directly filled with ceramic balls 4 as well as the gaps between the heat storage modules and the inner wall of the heat storage body; the inner wall of the heat storage chamber and the edge of the heat storage body are fixedly connected with thermal insulation cotton and high-temperature glue; the lower end of the heat storage chamber is welded to the outer steel plate 3 with a mesh grille 11 to bear the load and fix it.
[0043] The heat storage modules in Example 1 are stacked up and down and left and right to fill the entire heat storage chamber. The gap between the adjacent heat storage modules on the left and right and the gap between the heat storage module and the inner wall of the heat storage chamber are filled with ceramic balls 4 with a diameter of mm. The bottom grid is 10 mm thick and is welded to the outer steel plate 3 for load-bearing and fixation.
[0044] 300-700℃ high temperature airflow from Figure 3 The main view passes through the heat storage chamber upward from the bottom module, and passes through each level of modules upward, and fully contacts with the basalt fiber bundle 12. The basalt fiber bundle 12 absorbs the heat of the high-temperature gas and stores heat, and transfers the heat to the low-temperature gas in the next cycle, and the cycle repeats to achieve a good heat exchange effect.
[0045] Embodiment 4:
[0046] like Figure 4 As shown, a fan-shaped basalt fiber bundle 12 heat storage chamber suitable for a rotary organic gas combustion furnace and a full hydrogen furnace comprises: the heat storage chamber is composed of cubic heat storage modules stacked up and down and left and right; the heat storage module is as shown in the first embodiment; the gaps between the multiple heat storage modules and between the heat storage modules and the inner wall of the heat storage body are filled with ceramic balls 4; the inner wall of the heat storage chamber and the edge of the heat storage body are fixedly connected with thermal insulation cotton and high-temperature glue.
[0047] The fan-shaped heat storage chamber is filled with the heat storage module in Example 1, the gaps between the heat storage modules are filled with ceramic balls 4 with a diameter of 10 mm, and the gaps between the heat storage modules and the inner wall of the steel plate 3 are filled with ceramic balls 4 with a diameter of mm. The bottom layer of the fan-shaped heat storage chamber has a bottom grid 5 with a thickness of 10 mm welded to the periphery of the steel plate 3 for load-bearing and fixation.
[0048] High temperature airflow from Figure 4The top view passes through the heat storage chamber vertically from the inside to the outside, and passes through each layer in turn. Figure 4 The heat storage modules are placed to achieve cyclic heat absorption and heat release.
[0049] Embodiment five:
[0050] like Figure 5 As shown, a basalt fiber bundle 12 and ceramic honeycomb heat storage body mixed heat storage chamber suitable for organic gas combustion furnaces and full hydrogen furnaces includes: the heat storage chamber is composed of cubic heat storage modules stacked up and down and left and right as shown in Example 1; the ceramic heat storage body is fixed on the upper end of the heat storage module, and the gas passes through the holes between the fiber bundle groups and the inside of the ceramic honeycomb heat storage body from the bottom of the grid to form a flow channel; the gaps between multiple heat storage modules and between the heat storage modules and the inner wall of the heat storage body are filled with ceramic balls 4; the inner wall of the heat storage chamber steel plate 3 and the edge of the heat storage body are fixedly connected with thermal insulation cotton and high-temperature glue.
[0051] The high-temperature gas passes through the basalt heat storage module and the honeycomb ceramic heat storage body from bottom to top, and passes through the voids between the basalt fiber bundles 12 and the channels in the honeycomb ceramic heat storage body to form a flow channel, where it releases heat. The basalt heat storage module and the honeycomb ceramic heat storage body store heat together, and release heat when the low-temperature gas flows through, and the cycle realizes the function of the heat storage chamber.
[0052] Different from the third embodiment, the heat storage module uses a basalt fiber bundle 12 heat storage module and a ceramic honeycomb heat storage body as heat storage materials instead of a single basalt fiber bundle 12. This overcomes the defects of large gas flow resistance, high processing energy consumption and limited temperature range of the basalt fiber bundle 12 heat storage body in a simple ceramic honeycomb heat storage body. It can withstand high temperatures of 600-1100°C, thereby improving the temperature tolerance range of the heat storage chamber and the heat storage effect.
[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace, comprising a regenerator, characterized in that: A mesh grille (11) is provided at the bottom of the heat storage chamber, a basalt fiber bundle (12) heat storage module group is provided above the mesh grille (11), a ceramic insulation module and a steel plate (3) are sequentially provided outwardly of the basalt fiber bundle (12) heat storage module group, a ceramic ball (4) is provided in the gap of the ceramic insulation module, the basalt fiber bundle (12) heat storage module group comprises a heat storage module, a plurality of the heat storage modules are provided and are stacked up and down and left and right, the heat storage module is provided with a bottom grille (5), iron columns (131) or perforated plate fences (132) are provided between the heat storage module and the bottom grille (5), the perforated plate fence (132) A first opening is provided on the top, and the first opening is provided in plurality and arranged in an array. The heat storage module comprises a basalt fiber bundle (12), and the basalt fiber bundle (12) is connected to the mesh grille (11) and the iron column (131) or the perforated plate fence (132) by knotting, and the basalt fiber bundle (12) and the iron column (131) are wound in an S shape and wound upwards. An upper perforated plate (14) is provided on the top of the heat storage module, and the upper perforated plate (14) is welded to the iron column (131) or the perforated plate fence (132). A second opening is provided on the upper perforated plate (14), and the second opening is provided in plurality and arranged in an array.
2. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 1, characterized in that: The heat storage modules are stacked up and down and can be detachably arranged. Ceramic balls (4) are arranged in the gaps between the multiple heat storage modules and between the heat storage modules and the ceramic heat insulation modules. The diameter of the ceramic balls (4) is 10-30 mm.
3. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 2, characterized in that: The heat storage chamber has a height of 800-2000 mm, and a length and width of 500-2000 mm respectively.
4. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 3, characterized in that: The bottom grid (5) has a thickness of 10-30 mm and a side length of a grid hole of 5-30 mm.
5. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 4, characterized in that: A plurality of grooves are arranged outside the iron column (131), and the diameter of the iron column (131) is 15-25 mm.
6. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 5, characterized in that: The diameter of the first opening is 10-30 mm, and the center distance between the plurality of first openings is 20-50 mm.
7. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 6, characterized in that: The perforated plate fence (132) has a height of 100-500 mm, a length and a width of 100-500 mm respectively, a diameter of the basalt fiber bundle (12) of 5-20 mm, and a spacing of 5-20 mm between the upper and lower layers of the basalt fiber bundle (12).
8. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 7, characterized in that: The thickness of the upper perforated plate (14) is 3-5 mm, the diameter of the second opening is 30-60 mm, and the center distance between the plurality of second openings is 40-70 mm.
9. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 8, characterized in that: A ceramic saddle ring is provided between the bottom grid (5) and the heat storage module, and a catalytic brick or a heat storage body is provided on the top of the heat storage module.
10. The basalt fiber bundle regenerator for an organic gas combustion furnace and a full hydrogen furnace according to claim 9, characterized in that: The inner wall of the heat storage chamber and the edge of the heat storage body are fixedly connected by heat insulation cotton and high-temperature glue.