一种三段式火管
By designing a three-section fire tube, the gas tubes are segmented to control the air intake and the distribution of the air outlets, thus realizing the adjustment of flame intensity in the tunnel oven. This solves the problem that existing fire tubes cannot be flexibly adjusted, and improves baking efficiency and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XIYI INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fire tube designs cannot flexibly adjust the heat (high, low, and medium) within a tunnel oven, resulting in low baking efficiency and uneven heating.
A three-section fire tube was designed, consisting of a first air tube, a second air tube, and a third air tube, which are connected by air tube connectors. The air intake is controlled separately to achieve high flame, low flame, and medium flame output. The air tubes are equipped with air outlets and flame outlets to adjust the flame intensity.
It enables simultaneous adjustment of high, low, and medium heat in a single oven, improving the baking efficiency of products such as cakes and bread and solving the problem of uneven heating.
Smart Images
Figure CN224516770U_ABST
Abstract
Claims
1. A three-stage fire tube, characterized by: The device includes a fire exhaust pipe (1) and a gas pipe (2). The fire exhaust pipe (1) is a hollow cavity structure with an opening at one end. The gas pipe (2) is installed in the cavity and consists of a first gas pipe (21), a second gas pipe (22), a third gas pipe (23), and a gas pipe connector (24). The first gas pipe (21) and the second gas pipe (22) are arranged side by side and fixed by a first fixing ring (25). The third gas pipe (23) is fixed to the first gas pipe (21) and the second gas pipe (22) by a second fixing ring (26). The connector (24) is connected to the first air pipe (21), the second air pipe (22) and the third air pipe (23) respectively. A recessed groove (11) is provided on the exhaust pipe (1) along the length of the exhaust pipe (1). An exhaust hole (12) is provided in the recessed groove (11) and penetrates the exhaust pipe (1). A plug (3) is provided at the opening of the exhaust pipe (1). The plug (3) seals the air pipe (2) in the exhaust pipe (1). An air inlet (31) is provided on the plug (3). The air inlet (31) is connected to the air pipe connector (24).
2. A three-section fire tube as claimed in claim 1, characterized in that: A fire safety zone (13) is provided at one end of the fire exhaust pipe (1) near the plug (3).
3. A three-section fire tube according to claim 1, characterized in that: The depth of the sinking trough (11) is between 1.8 mm and 2 mm, and a step (14) is provided at the opening of the sinking trough (11).
4. A three-section fire tube as defined in claim 1, characterized in that: The fire outlet (12) has several holes, which are evenly distributed in the sinking trough (11). The inner diameter of each fire outlet (12) is between 1.5 mm and 2 mm.
5. A three-section fire tube as defined in claim 1, characterized in that: The first air tube (21), the second air tube (22) and the third air tube (23) are respectively provided with a first air outlet (27), a second air outlet (28) and a third air outlet (29), wherein the second air outlet (28) is located between the first air outlet (27) and the third air tube (23) and is arranged in three sections. The length of the second air tube (22) is less than the length of the first air tube (21) and the length of the second air tube (22) is greater than the length of the third air tube (23).
6. A three-section fire tube as claimed in claim 5, characterised in that: The first vent (27), the second vent (28) and the third vent (29) are all on the same straight line, and the positions of the first vent (27), the second vent (28) and the third vent (29) correspond to the positions of the flame outlet (12).