Fire tube for gas steam box

By designing a fire pipe for a gas steam box connected by two welds, and adding connecting ribs and reinforcement ribs to its pipe body and butt panel, the problem of high instability of the existing steam box fire pipe is solved, achieving higher stability and heating effect.

CN222911592UActive Publication Date: 2025-05-27NANJING FEIYUE COMMERCIAL KITCHENWARE MFG CO LTD
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Patent Information

Application Number
CN202421535223.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-05-27
Estimated Expiration
2034-07-01

AI Technical Summary

Technical Problem

The existing steamer fire pipes have high instability due to the large number of welds. Once the welds crack, the steamer will malfunction and potential use risks.

Method used

A fire pipe for gas steamer is designed, using two symmetrically arranged pipe bodies and butt panels, formed by stamping a metal plate, with only two continuous welds, and connecting ribs and reinforcement ribs are welded on the pipe bodies and butt panels to increase strength, and a rectangular ventilation hole is designed to improve the heating effect.

Benefits of technology

By reducing the number of welds and improving the firmness and heating area at the connection, the stability and heating effect of the fire pipe are significantly improved, and the failure rate and potential use risks are reduced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222911592U_ABST
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Abstract

The utility model relates to the field of fire tubes, and discloses a fire tube for a fuel gas steam box, which comprises two tube bodies which are symmetrically arranged up and down, butt joint panels are integrally formed at the ends, close to each other, of the two tube bodies, widening plates are integrally formed at the right ends of the tube bodies, and the widening plates are arranged on the butt joint panels. The edges of the upper butt-joint panel and the lower butt-joint panel are designed in a welded mode, the whole tube body, the butt-joint panels and the widening plate are formed by stamping a metal plate, so that the whole fire tube only has two continuous welding seams, the firmness of the connecting position is improved, the strength between the tube body and the butt-joint panels is improved through the matched connecting ribs and the first reinforcing ribs, and the strength of the whole fire tube is improved. And the heating area of the whole fire tube is increased due to the design of the wide butt joint panel and the extension plate, so that the heating effect on water is improved.
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Description

Technical Field

[0001] The utility model relates to the field of flue pipes, in particular to a flue pipe for a gas steaming box. Background Art

[0002] In a steaming box, gas in a burner burns to make the flame penetrate through the flue pipe, and the water in the water tank is heated by the flue pipe to evaporate, and steam is used to steam food. The existing flue pipe of the steaming box is usually welded by four flue pipe walls. The flue pipe welded by four flue pipes has four welds. In the subsequent use process of the steaming box, the more welds there are, the greater the instability of the flue pipe. Once the welds crack, the water tank cannot be heated, resulting in the overall failure of the steaming box and bringing potential safety hazards in use. For this reason, we have designed a flue pipe for a gas steaming box. Content of the Utility Model

[0003] In order to solve the technical problem that the more welds there are, the greater the instability of the flue pipe, the utility model provides a flue pipe for a gas steaming box.

[0004] The utility model is realized by the following technical solutions: A flue pipe for a gas steaming box includes two symmetrically arranged pipe bodies up and down. One end of each of the two pipe bodies close to each other is integrally formed with a docking panel. A widened plate is integrally formed at the right end of the pipe body. The widened plate is arranged on the docking panel, and the edges of the upper and lower docking panels are welded.

[0005] As a further improvement of the above solution, an air vent cavity is arranged below the pipe body, and the air vent cavities of the upper and lower pipe bodies are butted to form a rectangular air vent hole for the flow of gas. The air vent hole is composed of the butting of two air vent cavities. The air vent hole is rectangular. Compared with a circular structure with the same inner diameter, the internal area of the rectangular air vent hole is larger, so that more gas flows through, and the contact area with water is also larger, thereby improving the heating effect. The four corners of the inner wall of the air vent hole are designed with rounded corners. The cross-section of the pipe body is a semi-rectangular structure, and its two sides are bent downward. The rounded corner design at the bending part can disperse stress, and cracks are not likely to occur at the bending part.

[0006] As a further improvement of the above solution, an ignition cavity is integrally designed below the widened plate. The rear end of the ignition cavity is communicated with the air vent cavity for installing the igniter of the gas steaming box in the ignition cavity.

[0007] As a further improvement of the above solution, the pipe body is bent in a U-shaped structure, and a plurality of first reinforcing ribs are arranged above the pipe body along the shape of the pipe body. Two groups of second reinforcing ribs are arranged above the widened plate, which improves the strength of the surface of the pipe body and the widened plate, making it not easy to crack.

[0008] As a further improvement of the above solution, a plurality of linearly distributed connecting ribs are welded above the pipe body. The lower part of the connecting ribs is welded to the surface of the docking panel, and a plurality of linearly distributed extension plates are integrally arranged above the connecting ribs. The upper surface of the extension plates is flush with the upper surfaces of the first reinforcing rib and the second reinforcing rib. The connecting ribs can better integrate the pipe body and the docking panel, improving the strength between the two. Moreover, the design of the extension plates increases the heating area of the entire pipe body and the docking panel, thereby improving the heating effect.

[0009] As a further improvement of the above solution, symmetrically arranged arc-shaped blocks are welded on the left front side of the left end of the ventilation cavity of each pipe body. The inner walls of the four arc-shaped blocks between the upper and lower two pipe bodies form a complete circular installation cavity, and a docking pipe is installed in the installation cavity. The ventilation holes formed by the ventilation cavities of the two pipe bodies are rectangular structures. The use of a circular installation cavity facilitates the installation of the docking pipe, and thus can be quickly connected to the external gas pipeline.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. In the present utility model, the entire pipe body, the docking panel, and the widened plate are formed by stamping a single metal plate. This results in only two continuous weld seams for the entire fire pipe, improving the firmness of the connection. With the provided connecting ribs and the first reinforcing rib, the strength between the pipe body and the docking panel is increased, and the pressure it can withstand is also greater. The design of the wide docking panel and the extension plates increases the heating area of the entire fire pipe, thereby improving the heating effect on water.

[0012] 2. The ventilation holes are formed by docking two ventilation cavities, and the ventilation holes are rectangular structures. Compared with a circular structure with the same inner diameter, the internal area of the rectangular ventilation holes is larger, allowing more gas to flow through and having a larger contact area with water, thereby improving the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of a fire pipe for a gas steaming box provided by the present utility model;

[0014] Figure 2 is Figure 1 a schematic diagram of the structure without the docking pipe installed in

[0015] Figure 3 is Figure 1 a schematic diagram of the structure of the pipe body and the docking panel in

[0016] Figure 4 is Figure 3 a bottom view of

[0017] MAIN SYMBOL DESCRIPTION:

[0018] 1. Pipe body; 11. First reinforcing rib; 12. Arc-shaped block; 13. Ventilation cavity; 2. Docking panel; 3. Connecting rib; 31. Extension plate; 4. Widening plate; 41. Ignition cavity; 42. Second reinforcing rib; 5. Docking pipe. Specific implementation manner

[0019] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, any combination can be formed between the following-described embodiments or technical features to form a new embodiment.

[0020] Embodiment:

[0021] Please refer to Figures 1 - 4 , a gas steaming oven fire tube in this embodiment includes two pipe bodies 1 symmetrically arranged up and down. At one end where the two pipe bodies 1 are close to each other, a docking panel 2 is integrally formed. At the right end of the pipe body 1, a widening plate 4 is integrally formed. The widening plate 4 is arranged on the docking panel 2, and the edges of the upper and lower docking panels 2 are welded.

[0022] A ventilation cavity 13 is arranged below the pipe body 1, and the ventilation cavities 13 of the upper and lower pipe bodies 1 are docked to form a ventilation hole with a rectangular structure for the flow of gas. And the ventilation hole is composed of the docking of two ventilation cavities 13. The ventilation hole has a rectangular structure. Compared with a circular structure with the same inner diameter, the internal area of the ventilation hole with a rectangular structure is larger, so that more flowing gas and a larger contact area with water are obtained, thereby improving the heating effect. The four corners of the inner wall of the ventilation hole are designed with rounded corners. The cross-section of the pipe body 1 is a semi-rectangular structure, and its two sides are bent downward. The design of rounding the corners at the bending places can disperse the stress, and cracks are not likely to occur at the bending places.

[0023] An ignition cavity 41 is integrally designed below the widening plate 4. The rear end of the ignition cavity 41 is communicated with the ventilation cavity 13 for installing the igniter of the gas steaming oven in the ignition cavity 41.

[0024] The pipe body 1 is designed to be bent in a U-shaped structure, and a plurality of first reinforcing ribs 11 are arranged above the pipe body 1 along the shape of the pipe body 1. And two groups of second reinforcing ribs 42 are arranged above the widening plate 4, which improves the surface strength of the pipe body 1 and the widening plate 4, making them not easy to crack.

[0025] Above the pipe body 1, a plurality of connecting ribs 3 distributed linearly are welded. The lower part of the connecting rib 3 is welded to the surface of the docking panel 2, and a plurality of extension plates 31 distributed linearly are integrally arranged above the connecting rib 3. The upper surfaces of the extension plates 31 are flush with the upper surfaces of the first reinforcing rib 11 and the second reinforcing rib 42. The connecting rib 3 can make the pipe body 1 and the docking panel 2 better integrated, improving the strength between the two, and the design of the extension plate 31 increases the heating area of the entire pipe body 1 and the docking panel 2, thereby improving the heating effect.

[0026] On the left front side of the left end of the ventilation cavity 13 of each pipe body 1, symmetrically arranged arc-shaped blocks 12 are welded on both the left and right sides. The inner walls of the four arc-shaped blocks 12 between the upper and lower two pipe bodies 1 form a complete circular installation cavity, and a docking pipe 5 is installed in the installation cavity. The ventilation holes formed by the ventilation cavities 13 of the two pipe bodies 1 are rectangular structures. The use of a circular installation cavity facilitates the installation of the docking pipe 5, and thus can be quickly connected to an external gas pipeline.

[0027] In the embodiment of the present application, the implementation principle of the gas steaming box fire tube is as follows: The entire pipe body 1, the docking panel 2, and the widened plate 4 are formed by stamping a piece of metal plate. Two sets of exactly the same pipe bodies 1, docking panels 2, and widened plates 4 are assembled and welded to form the required fire tube. This also makes the entire fire tube have only two complete weld seams, improving the firmness of the connection. Moreover, we also weld multiple groups of linearly distributed connecting ribs 3 on the pipe body 1 and the docking panel 2, which increases the strength between the pipe body 1 and the docking panel 2 and enables it to bear greater pressure. The extension plates 31 provided above the connecting ribs 3 increase the heating area of the entire pipe body 1 and the docking panel 2, thereby improving the heating effect;

[0028] By forming the entire pipe body 1, the docking panel 2, and the widened plate 4 from a single piece of metal plate, this makes the entire fire tube have only two continuous weld seams, improving the firmness of the connection. With the cooperation of the provided connecting ribs 3 and the first reinforcing rib 11, the strength between the pipe body 1 and the docking panel 2 is increased, and it can bear greater pressure. The design of the wide docking panel 2 and the extension plates 31 increases the heating area of the entire fire tube, thereby improving the heating effect on water;

[0029] The ventilation hole is formed by docking two ventilation cavities 13, and the ventilation hole is a rectangular structure. Compared with a circular structure with the same inner diameter, the internal area of the rectangular ventilation hole is larger, allowing more gas to flow through and having a larger contact area with water, thereby improving the heating effect.

[0030] The above implementation manners are only the preferred implementation manners of the present invention and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the protection scope required by the present invention.

Claims

1. A fire tube for a gas steamer, comprising two tube bodies (1) symmetrically arranged up and down, characterized in that: The two tube bodies (1) are integrally formed with a docking panel (2) at one end close to each other, and a widening plate (4) is integrally formed at the right end of the tube body (1). The widening plate (4) is arranged on the docking panel (2), and the upper and lower edges of the docking panels (2) are welded.

2. A fire tube for a gas steamer as claimed in claim 1, characterized in that: A ventilation cavity (13) is provided below the tube body (1), and the ventilation cavities (13) of the upper and lower tube bodies (1) are butted together to form a ventilation hole with a rectangular structure, and the four corners of the inner wall of the ventilation hole are rounded.

3. A fire tube for a gas steamer as claimed in claim 2, characterized in that: An ignition chamber (41) is integrally designed below the widened plate (4), and the rear end of the ignition chamber (41) is connected to the ventilation chamber (13).

4. A fire tube for a gas steamer as claimed in claim 1, characterized in that: The tube body (1) is designed to be bent in a U-shaped structure, and a plurality of reinforcing ribs (11) distributed along the shape of the tube body (1) are arranged above the tube body (1), and two groups of reinforcing ribs (42) are arranged above the widening plate (4).

5. A fire tube for a gas steamer as claimed in claim 4, characterized in that: A plurality of linearly distributed connecting ribs (3) are welded above the tube body (1), the bottom of the connecting ribs (3) is welded to the surface of the docking panel (2), and a plurality of linearly distributed extension plates (31) are also integrally arranged above the connecting ribs (3), the upper surface of the extension plates (31) being flush with the upper surfaces of the first reinforcing rib (11) and the second reinforcing rib (42).

6. A fire tube for a gas steamer as claimed in claim 2, characterized in that: A symmetrically arranged arc-shaped block (12) is welded on the left and right sides of the front left end of the ventilation cavity (13) of each of the tube bodies (1), and the inner walls of the four arc-shaped blocks (12) between the upper and lower tube bodies (1) form an installation cavity with a complete circular structure, and a butt-joint pipe (5) is installed in the installation cavity.