Burner cooling structure and burner
By setting multiple partitions in the burner cooling structure to form an involute linear flow channel, the problem of large flow resistance in the traditional cooling structure is solved, and better cooling effect and structural simplicity are achieved. It is suitable for high-temperature and high-pressure burners. .
Patent Information
- Application Number
- CN202420072896.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-11
AI Technical Summary
The flow resistance of coolant in the traditional burner cooling structure is large, which affects the cooling effect, resulting in poor cooling effect of high-temperature and high-pressure burners in high-temperature and high-pressure airflow.
A burner cooling structure is designed, by providing a plurality of partitions between the bottom shell and the sealing plate to form a plurality of involute flow channels connected in parallel with each other, and the coolant flows from the first circumferential inlet to the second circumferential outlet. Reduce flow resistance and improve cooling effect.
It realizes the reduction of flow resistance while ensuring heat transfer, improves the cooling effect, and is simple and reliable in structure, suitable for use in burners in high temperature and high pressure environments.
Smart Images
Figure CN222278581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of burners, in particular to a burner cooling structure and a burner. Background Art
[0002] In a high-temperature and high-pressure burner, the burner is directly exposed to the high-temperature and high-pressure airflow, and needs to be cooled so that the burner can work normally. The traditional burner cooling structure usually adopts a single or several (generally not more than 4) coil cooling method. For example, the Chinese patent with publication number CN105694983A discloses a spiral burner cover, in which cooling water flows in from the input pipe, passes through the coil of the disc section to mainly cool the furnace wall, and then passes through the coil of the cover section to mainly cool the burner, and finally flows out from the output pipe. The flow resistance of the coolant is large, which has an adverse effect on the cooling effect. Utility Model Content
[0003] The utility model provides a burner cooling structure and a burner. The burner cooling structure is provided with an involute flow channel, has a simple structure, can reduce flow resistance while ensuring heat transfer, and has the characteristics of good cooling effect.
[0004] On the one hand, the utility model provides a burner cooling structure, including a bottom shell, a sealing plate and a plurality of partitions, wherein the partitions are arranged between the bottom shell and the sealing plate, and a flow channel for coolant to flow is formed between two adjacent partitions, and the flow channel is in an involute shape, wherein the inlet of the flow channel is distributed on a first circle, and the outlet of the flow channel is distributed on a second circle, and the radius of the second circle is greater than the radius of the first circle.
[0005] In one embodiment, the first circumference and the second circumference are concentric.
[0006] In one embodiment, the shapes of the flow channels are the same.
[0007] In one embodiment, the number of the flow channels is greater than 20.
[0008] In one embodiment, the thickness of the bottom shell and the thickness of the sealing plate are both 1 to 2 mm.
[0009] In one embodiment, the separator has a thickness of 0.8 to 2 mm.
[0010] In one embodiment, the height of the partition is 5 to 15 mm.
[0011] In one embodiment, the outer diameter of the sealing plate is smaller than the outer diameter of the bottom shell, the edge of the sealing plate is spaced apart from the edge of the bottom shell, and the outlet of the flow channel surrounds the edge of the sealing plate.
[0012] In one embodiment, the inner diameter of the sealing plate is greater than the inner diameter of the bottom shell, and the inner side of the sealing plate surrounds the inlet of the flow channel.
[0013] On the other hand, a burner is provided, comprising a burner body, on which the burner cooling structure described in any one of the above embodiments is provided.
[0014] Compared with the prior art, the advantage of the utility model is that, by arranging a plurality of partitions between the bottom shell and the sealing plate, a plurality of mutually parallel involute flow channels are formed between the bottom shell and the sealing plate, each involute flow channel is independent of each other, the flow resistance of the coolant is small, and the utility model has the characteristics of good cooling effect, simple and reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0016] Figure 1 It is a top view schematic diagram of the burner cooling structure in the embodiment of the utility model;
[0017] Figure 2 It is a side schematic diagram of the burner cooling structure in the embodiment of the utility model;
[0018] Figure 3 yes Figure 2 AA section view;
[0019] Figure 4 It is a schematic diagram of the connection relationship between the burner cooling structure and the burner body in the embodiment of the utility model.
[0020] Reference numerals:
[0021] 1. bottom shell; 2. sealing plate; 3. partition; 4. burner body; 100. flow channel; 1001. inlet; 1002. outlet. DETAILED DESCRIPTION
[0022] The utility model will be further described below in conjunction with the accompanying drawings.
[0023] like Figures 1 to 3 As shown, the burner cooling structure of an embodiment of the utility model includes a bottom shell 1, a sealing plate 2 and a plurality of partitions 3, the partitions 3 are arranged between the bottom shell 1 and the sealing plate 2, and a flow channel 100 for the flow of coolant is formed between two adjacent partitions 3, the flow channel 100 is in an involute shape, an inlet 1001 of the flow channel 100 is distributed on a first circumference, and an outlet 1002 of the flow channel 100 is distributed on a second circumference, and the radius of the second circumference is greater than the radius of the first circumference.
[0024] In this embodiment, the bottom shell 1 and the sealing plate 2 are both annular, the outer diameter of the sealing plate 2 is smaller than the outer diameter of the bottom shell 1, the edge of the sealing plate 2 is spaced apart from the edge of the bottom shell 1, and the outlet 1002 of the flow channel 100 surrounds the edge of the sealing plate 2. The inner diameter of the sealing plate 2 is larger than the inner diameter of the bottom shell 1, and the inner side of the sealing plate 2 surrounds the inlet 1001 of the flow channel 100. That is, the first circumference is located on the inner side of the sealing plate 2, and the second circumference is located on the outer side of the sealing plate 2.
[0025] In this embodiment, the first circle and the second circle are concentric, and the shapes of the flow channels 100 are the same, so that the cooling capacity of the burner cooling structure is consistent at all locations, the cooling uniformity is good, and the manufacturing is also convenient.
[0026] By arranging a plurality of partitions 3 between the bottom shell 1 and the sealing plate 2, a plurality of mutually parallel involute flow channels 100 are formed between the bottom shell 1 and the sealing plate 2. Each involute flow channel 100 is independent of each other, and the flow resistance of the coolant is small. The coolant has the characteristics of good cooling effect, simple and reliable structure.
[0027] In order to achieve a smaller flow resistance, the number of flow channels 100 should be greater than 20. Specifically, in this embodiment, the number of baffles 3 is 25, and correspondingly, the number of flow channels 100 is 26, and the coolant flows in from the inlet 1001 and flows out from the outlet 1002. In order to enhance the cooling effect, the cooling medium can be supercooled water, and the flow rate is 8 m / s.
[0028] In this embodiment, the thickness of the bottom shell 1 and the thickness of the sealing plate 2 are both 1-2 mm. In addition to being used to form the flow channel 100, the partition 3 can also play a role similar to a reinforcing rib, thereby improving the structural strength of the burner cooling structure. Since there are a large number of partitions 3, the thickness of the bottom shell 1, the thickness of the sealing plate 2 and the thickness of the partition 3 do not need to be too large. The thickness of 1-2 mm makes the overall weight of the burner cooling structure light, which is convenient for loading and unloading, and at the same time requires less manufacturing materials and lowers the cost.
[0029] The thickness of the partition 3 is 0.8 to 2 mm, and the height of the partition 3 is 5 to 15 mm.
[0030] Specifically, in this embodiment, the thickness of the partition 3 is 1 mm, and the height of the partition 3 is 10 mm. A thinner partition 3 can occupy less volume, so that a larger number of flow channels 100 can be opened.
[0031] The embodiment of the utility model also provides a burner, such as Figure 4 As shown, the burner includes a burner body 4, on which the burner cooling structure of the above embodiment is provided, so that the burner body 4 can be well cooled during operation, thereby ensuring the service life of the burner and enabling the burner to operate stably.
[0032] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A burner cooling structure, characterized in that: It includes a bottom shell, a sealing plate and multiple partitions, wherein the partition is arranged between the bottom shell and the sealing plate, and a flow channel for coolant to flow is formed between two adjacent partitions. The flow channel is involute shape, and the inlet of the flow channel is distributed on a first circumference, and the outlet of the flow channel is distributed on a second circumference. The radius of the second circumference is greater than the radius of the first circumference.
2. The burner cooling structure according to claim 1, characterized in that: The first circumference and the second circumference are concentric.
3. The burner cooling structure according to claim 2, characterized in that: The shapes of the flow channels are the same.
4. The burner cooling structure according to claim 1, characterized in that: The number of the flow channels is greater than 20.
5. The burner cooling structure according to any one of claims 1 to 4, characterized in that: The thickness of the bottom shell and the thickness of the sealing plate are both 1 to 2 mm.
6. The burner cooling structure according to claim 5, characterized in that: The thickness of the partition is 0.8-2 mm.
7. The burner cooling structure according to claim 6, characterized in that: The height of the partition is 5 to 15 mm.
8. The burner cooling structure according to any one of claims 1 to 4, characterized in that: The outer diameter of the sealing plate is smaller than the outer diameter of the bottom shell, the edge of the sealing plate is spaced apart from the edge of the bottom shell, and the outlet of the flow channel surrounds the edge of the sealing plate.
9. The burner cooling structure according to claim 8, characterized in that: The inner diameter of the sealing plate is greater than the inner diameter of the bottom shell, and the inner side of the sealing plate surrounds the inlet of the flow channel.
10. A burner, characterized in that: It comprises a burner body, on which the burner cooling structure according to any one of claims 1 to 9 is arranged.