Regenerative burner with flow guide structure
By introducing a flow guiding structure and a honeycomb brick filling design into the regenerative burner, the problem of gas flow deviation was solved, a more uniform airflow distribution was achieved, the heat storage effect and equipment life were improved, and maintenance costs were reduced.
Patent Information
- Application Number
- CN202520545550.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-26
AI Technical Summary
During the gas supply and exhaust process, the gas collection box opening is located on one side and should not be too large, which leads to uneven gas suction distribution, causing flow deviation, affecting the heat storage effect and shortening the service life.
A flow guiding structure is added to the regenerative burner, including an L-shaped flow guiding steel plate and a honeycomb structure. Multiple flow guiding channels are formed through the flow guiding steel plate to optimize airflow distribution. Combined with the cubic and cuboid brick filling structure of the honeycomb structure, the airflow is evenly distributed.
It effectively solves the gas flow deviation problem, improves heat storage capacity and service life, increases thermal efficiency and reduces maintenance costs.
Smart Images
Figure CN223924811U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of industrial gas heating, and more specifically, to a regenerative burner with a flow guiding structure. Background Technology
[0002] A regenerative burner is a type of burner that preheats air and fuel gas by recovering heat from the high-temperature flue gas in the furnace using a regenerator. Furthermore, by arranging twice the number of burners and equipping them with reversing valves, alternating combustion can be achieved, resulting in high thermal efficiency and uniform combustion. Simultaneously, combined with flameless combustion technology, regenerative burners exhibit ultra-low NOx emissions. X Its high emissions and extremely high combustion thermal efficiency have led to its widespread application in industrial gas heating.
[0003] During the use of regenerative burners, the gas collection box opening is located on one side during gas supply and exhaust, and the opening design should not be too large. This results in uneven suction distribution, causing gas to flow off-center within the heat storage body. Consequently, the heat storage effect is poor, and the service life of some heat storage elements is significantly reduced. This affects the performance of the regenerative burner and increases the operating cost.
[0004] Therefore, it is necessary to propose a regenerative burner with a flow guiding structure to solve the above problems. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to provide a heat storage burner with a flow guiding structure to address the above-mentioned problems.
[0006] The embodiments of this application are implemented as follows:
[0007] This application provides a heat storage burner with a flow guiding structure, characterized in that it includes a burner shell, the inner wall of which is lined with a burner liner, the cavity of which is filled with honeycomb, a burner brick connected to one side of the burner shell, and a gas collection box connected to the other end of the burner shell. The gas collection box is provided with a flow guiding structure, and a gas opening is provided at the top of the gas collection box.
[0008] In some optional embodiments, the flow guiding structure includes multiple L-shaped flow guiding steel plates arranged at intervals from top to bottom to form multiple flow guiding channels, corresponding to the gas opening.
[0009] In some alternative embodiments, a retaining brick is laid between one side of the honeycomb body and the burner brick, and a partition is provided on the other side of the honeycomb body.
[0010] In some alternative implementations, the gas collection box is sealed and welded to the burner shell, the burner liner is fixed to the burner shell by anchoring nails, and the burner brick is pressed and fixed to the burner shell by applying castable slurry on site.
[0011] In some alternative embodiments, the burner liner has a stepped portion at the top of the side near the gas collection box, and the thickness of the burner liner at the stepped portion is less than that of the rest.
[0012] In some alternative implementations, the honeycomb structure is formed by stacking and filling cubic bricks, and the area at the stepped portion is filled with cuboid bricks.
[0013] In some optional implementations, there are four L-shaped guide steel plates, and the four L-shaped guide steel plates and the air collection box form five guide channels. The width ratio of the horizontal section of the five guide channels from top to bottom is 10:7:7:8:10, and the width ratio of the vertical section of the five guide channels from outside to inside is 15:9:9:10:12.
[0014] In some alternative implementations, the outer end of the gas collection box is provided with a cover plate, which is connected to the gas collection box by a sealing gasket and connecting bolts.
[0015] In some alternative implementations, the multiple L-shaped guide steel plates are welded to both sides with supporting steel frames, and the ends of the supporting steel frames are in contact with the inner wall of the gas collection box for support.
[0016] In some alternative embodiments, the burner liner is made of ceramic fiberboard, lightweight high-strength castable, or heavy low-cement castable.
[0017] The beneficial effects of this application are as follows: The heat storage burner with a flow guiding structure provided by this application optimizes the existing structure and adds a flow guiding structure, which solves the problem of gas flow deviation in the heat storage burner. Whether in the heat storage state or the combustion state, the airflow can be effectively and evenly distributed, making the airflow in the honeycomb body more uniform, improving the heat storage capacity, and extending the service life; further improving the thermal efficiency of the heat storage burner and reducing maintenance costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a regenerative burner according to an embodiment of this application. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] The features and performance of this application will be further described in detail below with reference to the embodiments.
[0025] like Figure 1 As shown, this embodiment proposes a heat storage burner with a flow guiding structure, including a burner shell 1, the inner wall of which is lined with a burner liner 2, the cavity of the burner shell is filled with honeycomb 3, one side of the burner shell is connected to a burner brick 4, the other end of the burner shell is connected to a gas collection box 5, the gas collection box is provided with a flow guiding structure, and the top of the gas collection box is provided with a gas opening 6.
[0026] A retaining brick 7 is laid between one side of the honeycomb body and the burner brick, and a partition 8 is provided on the other side of the honeycomb body. The partition is fixed inside the burner shell by bolts and is used to separate the honeycomb body from the gas collection box.
[0027] The burner liner has a stepped section 9 on the top side near the gas collection box. The thickness of the burner liner in the stepped section is less than that of the rest, which further alleviates the gas flow deviation phenomenon.
[0028] The honeycomb structure is formed by stacking and filling cubic bricks, while the area at the step is filled with cuboid bricks.
[0029] The cubic and cuboid brick structures, with dimensions of 100mm x 100mm x 100mm and 150mm x 100mm x 100mm respectively, are stacked together and pushed into the burner cavity.
[0030] In some alternative implementations, the gas collection box is sealed and welded to the burner shell, the burner liner is fixed to the burner shell by anchoring nails, and the burner brick is pressed and fixed to the burner shell by applying castable slurry on site.
[0031] The burner liner is made of ceramic fiber board, lightweight high-strength castable, and heavy low-cement castable.
[0032] In some alternative implementations, a cover plate 10 is provided at the outer end of the gas collection box, and the cover plate is connected to the gas collection box by a sealing gasket and connecting bolts.
[0033] Example 1
[0034] In this embodiment, the flow guiding structure includes multiple L-shaped flow guiding steel plates 11 arranged at intervals from top to bottom to form multiple flow guiding channels, corresponding to the gas openings.
[0035] In some alternative implementations, support steel frames 12 are welded to both sides of multiple L-shaped guide steel plates. The ends of the support steel frames are in contact with the inner wall of the gas collection box for support, which facilitates the removal of the guide steel plates when the honeycomb structure needs to be replaced.
[0036] Example 2
[0037] In this implementation scheme, there are four L-shaped guide steel plates, and the four L-shaped guide steel plates and the air collection box form five guide channels. The width ratio of the horizontal section of the five guide channels from top to bottom is 10:7:7:8:10, and the width ratio of the vertical section of the five guide channels from outside to inside is 15:9:9:10:12.
Claims
1. A regenerative burner with a flow guiding structure, characterized in that, The device includes a burner shell, the inner wall of which is lined with a burner liner, the cavity of which is filled with honeycomb, a burner brick connected to one side of the burner shell, and a gas collection box connected to the other end of the burner shell. The gas collection box is equipped with a flow guiding structure and a gas opening at the top.
2. A regenerative burner with a flow guiding structure according to claim 1, characterized in that, The flow guiding structure includes multiple L-shaped flow guiding steel plates arranged at intervals from top to bottom to form multiple flow guiding channels, corresponding to the gas openings.
3. A regenerative burner with a flow guiding structure according to claim 2, characterized in that, A retaining brick is laid between one side of the honeycomb body and the burner brick, and a partition is provided on the other side of the honeycomb body.
4. A regenerative burner with a flow guiding structure according to claim 3, characterized in that, The gas collecting box is sealed and welded to the burner shell, the burner liner is fixed to the burner shell by anchoring nails, and the burner brick is pressed and fixed to the burner shell by applying castable slurry on site.
5. A regenerative burner with a flow guiding structure according to claim 4, characterized in that, The burner liner has a stepped portion on the top side near the gas collection box, and the thickness of the burner liner in the stepped portion is less than that of the rest.
6. A regenerative burner with a flow guiding structure according to claim 5, characterized in that, The honeycomb structure is formed by stacking and filling cubic bricks, and the area located at the step is filled with cuboid bricks.
7. A regenerative burner with a flow guiding structure according to claim 4 or 6, characterized in that, The L-shaped guide steel plate consists of four pieces, and the four L-shaped guide steel plates and the gas collection box form five guide channels. The width ratio of the horizontal section of the five guide channels from top to bottom is 10:7:7:8:10, and the width ratio of the vertical section of the five guide channels from outside to inside is 15:9:9:10:
12.
8. A regenerative burner with a flow guiding structure according to claim 7, characterized in that, The outer end of the gas collection box is provided with a cover plate, which is connected to the gas collection box by a sealing gasket and connecting bolts.
9. A regenerative burner with a flow guiding structure according to claim 6, characterized in that, The multiple L-shaped guide steel plates are welded to both sides with supporting steel frames, which are supported by contact between the ends of the supporting steel frames and the inner wall of the gas collection box.
10. A regenerative burner with a flow guiding structure according to claim 8, characterized in that, The burner liner is made of ceramic fiber board, lightweight high-strength castable, and heavy low-cement castable.