Gas flow path structure for preventing leakage
By using a folded edge structure for the upper and lower gas shells, the problem of the sealing performance of traditional gas passages relying on the quality of the pipe wall is solved, achieving sealing performance and gas mixing in multi-shaped flow channels, and reducing processing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN ZHAOTIAN GAS APPLIANCE CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional gas passage structures rely on the quality of the pipe wall for sealing, which is costly and susceptible to corrosion. It is also difficult to achieve irregular structures and increases costs.
The gas upper shell and gas lower shell adopt a folded edge structure to form an irregular flow channel. The seal is formed by the folding of the edge, and the gas mixing is promoted by the combination of symmetrical shell cavity and negative pressure effect.
It achieves sealing and gas mixing of multi-shaped flow channels, reduces processing costs, and avoids problems such as leakage and structural uniformity.
Smart Images
Figure CN224470235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas burner technology, specifically to a gas flow channel structure that prevents leakage. Background Technology
[0002] Gas burners are widely used in daily life and production. Gas is transported to the burner through a gas passage. During the transport process, the gas passage needs to be kept sealed to prevent gas leakage. Only in this way can the gas burner be guaranteed to operate stably and reliably without any safety hazards.
[0003] Traditional burners typically use a single, integrally molded gas passage without any joints in the pipe wall, relying on the pipe wall's structure itself to prevent gas leakage. However, this structure has certain problems. The sealing effect is directly affected by the manufacturing quality of the pipe wall itself. When a leak occurs, the entire pipe must be scrapped, resulting in high costs. Furthermore, over long-term use, gas erosion of the pipe wall leads to a continuous decline in its sealing performance, requiring replacement for maintenance, further increasing operating costs. Additionally, traditional gas passage structures can generally only be constructed as regular circular pipes, which can transport gas but cannot promote gas intake and mixing during transport. Constructing irregularly shaped gas passages would significantly increase costs under the same manufacturing process.
[0004] It is evident that the current gas passage structure still has room for improvement and should be optimized to reduce the manufacturing difficulty, facilitate the implementation of various gas passage structures, and simultaneously keep the manufacturing cost of the gas passage within a relatively low range. Therefore, a more reasonable technical solution is needed to address the technical problems existing in the current technology. Utility Model Content
[0005] To overcome at least one of the defects mentioned above, this utility model proposes a gas flow channel structure to prevent leakage. The aim is to improve the gas flow channel structure, so as to obtain an irregularly structured gas channel in a simpler way, ensure the sealing of the gas transportation process, and avoid increasing the processing cost.
[0006] To achieve the above objectives, the flow channel structure disclosed in this utility model can adopt the following technical solution:
[0007] A gas flow channel structure for preventing leakage includes an upper gas shell and a lower gas shell, which are connected to form a gas flow channel; the mating edges of the upper and lower gas shells form a folded edge structure.
[0008] The gas flow channel structure disclosed above forms a gas flow channel by connecting the upper and lower gas shells. The structure is simple and can form more flow channel structures to meet more gas transportation needs. It does not increase the difficulty of the process and the processing cost is controlled, avoiding the shortcomings of the traditional integrally formed single pipe structure.
[0009] Furthermore, the folded edge structure can be constructed in various forms and is not limited to a single one. Here, we optimize and propose one feasible option: the edges of the upper and lower gas shells form relatively close mating edges, and the mating edge of the upper gas shell is folded 180° around the mating edge of the lower gas shell to form a wrapping clamp. When the above scheme is adopted, the lower gas shell is wrapped by the mating edge of the upper gas shell to form a sealed structure.
[0010] Furthermore, the folded edge structure can be constructed in various forms and is not limited to a single one. Here, we optimize and propose another feasible option: the edges of the upper and lower gas shells form relatively close mating edges, and the mating edge of the lower gas shell is folded 180° around the mating edge of the upper gas shell to form a wrapping clamp. When the above scheme is adopted, the upper gas shell is wrapped by the mating edge of the lower gas shell to form a sealed structure.
[0011] Furthermore, in order to improve the overall sealing effect, the structure of the upper and lower gas shells is optimized and feasible options are proposed: the mating edge is integrally formed with the upper and lower gas shells.
[0012] Furthermore, the thickness of the mating edge is equal to the thickness of the upper and lower gas shells.
[0013] Furthermore, to better guide the airflow and promote mixing during transport, the structures of the upper and lower gas shells are optimized. One feasible option is proposed here: the cavities of the upper and lower gas shells are symmetrical. When the above scheme is adopted, the cavities of both the upper and lower gas shells are curved concave cavities.
[0014] Furthermore, the mating edges on both sides of the gas upper shell are located on the same plane, and the shell cavity of the gas upper shell extends and expands inward from the air inlet. When the above scheme is adopted, as gas is transported inward from the air inlet, the gas pressure decreases after diffusion, which helps to create a negative pressure and draw external gas into the interior.
[0015] Furthermore, the mating edges on both sides of the lower gas shell are located on the same plane, and the cavity of the upper gas shell extends and expands inward from the air inlet. With this design, as gas is transported inward from the air inlet, the gas pressure decreases after diffusion, which helps to create a negative pressure and draw external gas into the interior.
[0016] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:
[0017] This invention utilizes the folded and wrapped edges of the upper and lower gas shells to form a sealed structure after docking. This not only creates irregularly shaped cavities to facilitate gas transport and mixing but also ensures the airtightness of the gas transport, preventing leakage during transport and controlling the overall processing cost of the gas flow channel. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on 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 magnified schematic diagram of the overall and partial structure of the gas flow channel.
[0020] Figure 2 This is a top view of the gas flow channel.
[0021] Figure 3 for Figure 2 Cross-sectional view and enlarged schematic diagram of local structures of AA.
[0022] In the above attached figures, the meanings of each label are as follows:
[0023] 1. Upper gas shell; 2. Lower gas shell; 3. Fitting edge; 4. Gas flow channel. Detailed Implementation
[0024] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.
[0025] In view of the high processing cost and structural limitations of the gas flow channels in the prior art, the following embodiments are optimized and overcome the defects of the prior art.
[0026] Example
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a gas flow channel structure to prevent leakage, including an upper gas shell 1 and a lower gas shell 2. The upper gas shell 1 and the lower gas shell 2 are connected to each other to form a gas flow channel; the mating edges of the upper gas shell 1 and the lower gas shell 2 form a folded edge structure.
[0028] The gas flow channel structure disclosed in this embodiment forms a gas flow channel by connecting the upper gas shell 1 and the lower gas shell 2. The structure is simple and can form more flow channel structures to meet more gas transportation needs. It does not increase the difficulty of the process and the processing cost is also controlled, avoiding the shortcomings of the traditional integrally formed single pipe structure.
[0029] The folded edge structure can be constructed in various forms and is not limited to a single one. This embodiment optimizes and adopts one feasible option: the edges of the upper gas shell 1 and the lower gas shell 2 form relatively close mating edges 3. The mating edge 3 of the upper gas shell 1 is folded 180° around the mating edge 3 of the lower gas shell 2 and clamps it. When the above scheme is adopted, the lower gas shell 2 is wrapped by the mating edge 3 of the upper gas shell 1 to form a sealed structure.
[0030] The folded edge structure can be constructed in various forms and is not limited to a single one. In some other embodiments, another feasible option can be adopted: the edges of the upper gas shell 1 and the lower gas shell 2 form relatively close mating edges 3, and the mating edge 3 of the lower gas shell 2 is folded 180° around the mating edge 3 of the upper gas shell 1 to form a wrapping clamp. When the above scheme is adopted, the upper gas shell 1 is wrapped by the mating edge 3 of the lower gas shell 2 to form a sealed structure.
[0031] To improve the overall sealing effect, the structure of the upper gas shell 1 and the lower gas shell 2 is optimized and one of the feasible options is adopted: the mating edge 3 is integrally formed with the upper gas shell 1 and the lower gas shell 2.
[0032] The thickness of the mating edge 3 is equal to the thickness of the upper gas shell 1 and the lower gas shell 2.
[0033] To better guide the airflow and promote mixing during transport, the structures of the upper gas shell 1 and the lower gas shell 2 are optimized. This embodiment employs one feasible option: the cavities of the upper gas shell 1 and the lower gas shell 2 are symmetrical. When the above scheme is adopted, the cavities of both the upper gas shell 1 and the lower gas shell 2 are curved concave cavities.
[0034] The mating edges 3 on both sides of the gas upper shell 1 are located on the same plane, and the shell cavity of the gas upper shell 1 extends and expands inward from the air inlet. When the above scheme is adopted, as the gas is transported inward from the air inlet, the gas pressure decreases after diffusion, which helps to form a negative pressure and draw external gas into the interior.
[0035] The mating edges 3 on both sides of the lower gas shell 2 are located on the same plane, and the cavity of the upper gas shell 1 extends and expands inward from the air inlet. When the above scheme is adopted, as the gas is transported inward from the air inlet, the gas pressure decreases after diffusion, which helps to form a negative pressure and draw external gas into the interior.
[0036] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.
Claims
1. A gas flow channel structure to prevent leakage, characterized in that: It includes an upper gas shell (1) and a lower gas shell (2), which are connected to form a gas flow channel; the mating edges (3) of the upper gas shell (1) and the lower gas shell (2) form a folded edge structure.
2. The gas flow channel structure for preventing leakage according to claim 1, characterized in that: The upper gas shell (1) and the lower gas shell (2) form a relatively close mating edge (3). The mating edge (3) of the upper gas shell (1) is folded 180° around the mating edge (3) of the lower gas shell (2) and is wrapped and clamped to it.
3. The gas flow channel structure for preventing leakage according to claim 1, characterized in that: The gas upper shell (1) and the gas lower shell (2) form a relatively close mating edge (3) at their edges. The mating edge (3) of the gas lower shell (2) is folded 180° around the mating edge (3) of the gas upper shell (1) and is wrapped and clamped to it.
4. The gas flow channel structure for preventing leakage according to claim 2 or 3, characterized in that: The mating edge (3) is integrally formed with the upper gas shell (1) and the lower gas shell (2).
5. The gas flow channel structure for preventing leakage according to claim 2 or 3, characterized in that: The thickness of the mating edge (3) is equal to the thickness of the upper gas shell (1) and the lower gas shell (2).
6. The gas flow channel structure for preventing leakage according to claim 1, characterized in that: The upper gas shell (1) and the lower gas shell (2) are symmetrical in terms of their cavities.
7. The gas flow channel structure for preventing leakage according to claim 2 or 3, characterized in that: The mating edges (3) on both sides of the gas upper shell (1) are located on the same plane, and the shell cavity of the gas upper shell (1) extends and expands from the air inlet to the inside.
8. The gas flow channel structure for preventing leakage according to claim 2 or 3, characterized in that: The mating edges (3) on both sides of the lower gas shell (2) are located on the same plane, and the cavity of the upper gas shell (1) extends and expands from the air inlet to the inside.