Commercial gas noodle cooking equipment

Abstract

The utility model provides commercial gas noodle cooking equipment, which belongs to the technical field of noodle cooking furnaces and comprises a water storage structure, the water storage structure comprises a concave container and a heating mechanism, the heating mechanism can spray high-temperature airflow outwards, an air inlet pipe is arranged at an air outlet of the heating mechanism, the end of the air inlet pipe penetrates through the outer wall of the concave container, and a heating cavity is arranged at the end of the air inlet pipe. High-temperature air flow of the heating mechanism can enter the heating cavity through the air inlet pipe, so that the heating cavity heats the liquid in the concave container; an exhaust assembly is arranged on one side of the heating cavity and can exhaust high-temperature gas in the heating cavity, and meanwhile liquid in the concave container cannot enter the heating cavity; the heating source is not limited to the bottom of the water tank by heating from the inside of the water tank, so that the heating area of the water source is enlarged, water in the water tank can be heated more quickly, and the heating efficiency is improved.

Description

A commercial gas-fired noodle cooking device Technical Field

[0001] This utility model relates to the field of noodle cooking stove technology, specifically to a commercial gas-fired noodle cooking device. Background Technology

[0002] A noodle cooker, also known as a noodle stove or noodle pot, is a new type of energy-saving noodle cooker. In the fast-paced catering industry, commercial gas-fired noodle cookers are core equipment for noodle shops, canteens, snack stalls, and other places. Their heating efficiency directly affects the speed of food preparation and operating costs. The noodle cooker adds water to a water tank, then heats the water to a boil through a gas stove at the bottom, and then places the noodle basket containing the noodles into the water tank to cook.

[0003] Traditional noodle cookers place the water tank directly above the gas stove, with only the bottom of the tank in direct contact with the flame. The high-temperature flames from combustion impact the bottom of the pot in a scattered manner, with only a small portion of the heat being conducted to the water through the metal. In this traditional design, only the bottom of the pot is in contact with the flame, forming a single heated surface. This results in the heat generated by combustion acting in a dispersed manner on the bottom of the pot, limiting the heat transfer path to a flat area.

[0004] Because the water absorbs heat only through one side of the pot, the contact area between the water and the heat source is insufficient, resulting in low heat conduction efficiency. This causes the water temperature to rise slowly, the cooking time for the pasta to be longer, and most of the energy generated by combustion is not fully absorbed by the water, leading to a series of problems such as low heating and cooking efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a commercial gas-fired noodle cooking device that can heat water from inside the water tank, so that the heating source is not limited to the bottom of the water tank, thereby expanding the heating area of ​​the water source, enabling the water in the water tank to heat up faster and improving heating efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a commercial gas-fired noodle cooking device, including a water storage structure, which includes a concave container and a heating mechanism, the heating mechanism being able to spray high-temperature airflow outward;

[0007] An air inlet pipe is provided at the air outlet of the heating mechanism. The air inlet pipe is fixed and passes through the lower wall of the concave container. A heating chamber is provided at the end of the air inlet pipe. The air inlet pipe is connected to the inner wall of the heating chamber, so that when the heating mechanism is working, the high-temperature airflow ejected upward can enter the heating chamber through the air inlet pipe.

[0008] An exhaust assembly is provided on one side of the heating chamber. The high-temperature gas flow in the heating chamber heats the liquid and then is discharged through the exhaust assembly. The exhaust assembly can discharge the high-temperature gas in the heating chamber while preventing the liquid in the concave container from entering the heating chamber.

[0009] Because the heating chamber is located inside the concave container, it can heat the water inside the concave container from within the container through heat conduction. This means that the heat source for the water is not limited to the bottom of the concave container, thus increasing the heating area and allowing the water inside the concave container to heat up faster, thereby improving heating efficiency.

[0010] A drain outlet is provided at one corner of the bottom surface of the concave container, and a drain pipe is installed on the bottom surface of the concave container corresponding to the drain outlet. A valve is provided at the bottom of the drain pipe to facilitate drainage. The end face of the heating chamber corresponding to the drain outlet is set as an inclined surface. When draining, debris will block the drain outlet, so that there is space above the drain outlet for easy cleaning. This allows workers to clean and unclog the drain outlet through the exposed space.

[0011] Inside the concave container, above the heating chamber, is a spray frame with multiple sets of through holes arranged in a ring array on its surface. When water is poured into the concave container, the water can pass through the through holes on the surface of the spray frame and fill the gap between the spray frame and the heating chamber, so that the outer wall of the heating chamber can fully contact the water source. Through the design of the spray frame and through holes, it has a sieving and filtering function. If food falls during cooking, the spray frame will block the falling food, thereby reducing the blockage of the drain to a certain extent.

[0012] The heating chamber is welded to the side wall of the concave container, and a smoke outlet is opened at the welding point between the concave container and the heating chamber. This smoke outlet is the exhaust assembly, which allows high-temperature flue gas to be discharged through the smoke outlet at the connection point between the heating chamber and the concave container. Furthermore, because the heating chamber is welded to the concave container, water or other liquids inside the concave container cannot enter the interior of the heating chamber.

[0013] Multiple flame arrestor tubes are installed near the smoke outlet inside the heating chamber. The flame arrestor tubes are arranged in a linear pattern. Through the design of the flame arrestor tubes, the high-temperature gas in the heating chamber is blocked by the high-temperature airflow before it is discharged through the smoke outlet. This allows the flame arrestor tubes to slow down the flow speed of the high-temperature airflow, so that the high-temperature gas can stay in the heating chamber and fully heat the heating chamber, thereby improving the heating efficiency of the water source.

[0014] The flame arrestor tube is a hollow cylindrical structure. Through holes are opened at the connection between the upper and lower walls of the heating chamber and the end of the flame arrestor tube. When water is injected into the concave container, the water source can be immersed in the cavity inside the flame arrestor tube, thereby increasing the heating area of ​​the water source and thus improving the heating efficiency.

[0015] Multiple flame arresters are staggered in the direction of the high-temperature airflow, which further blocks the flow rate of the high-temperature airflow, thereby further improving the heating efficiency.

[0016] Three support frames extend downward from the lower side wall of the jet spray frame. The three support frames are respectively located below the three side walls of the jet spray frame and abut against the bottom surface of the concave container. The other side wall of the jet spray frame without a support frame is attached to the inner side wall of the concave container and corresponds to the position above the smoke outlet. A fixing strip for lifting is extended from the upper part of this side wall. The design of the support frames and fixing strip facilitates the installation and disassembly of the jet spray frame, and facilitates the cleaning and maintenance of the jet spray frame and the inside of the concave container in the future.

[0017] A chimney is installed on one side wall of the concave container corresponding to the flue gas outlet, allowing the high-temperature flue gas in the heating chamber to enter the chimney through the flue gas outlet. A flue gas trough is opened at the upper end of the chimney. After being heated by heat conduction, the high-temperature airflow in the heating chamber enters the chimney through the flue gas outlet, allowing the flue gas to heat the water source from the outside to the inside through heat conduction. Furthermore, because the area of ​​the flue gas trough is smaller than that of the flue gas outlet, the high-temperature flue gas can remain in the chimney, so that the waste heat of the flue gas can fully heat the water. Thus, through the design of the chimney wall, the heating chamber heats the water source from the inside of the concave container while simultaneously heating the water source from the outside through the waste heat of the flue gas. This allows for efficient utilization of waste heat energy and improves the heating efficiency of the water source through bidirectional heating.

[0018] A discharge chute is installed at the bottom of the chimney. If debris falls into the chimney's exhaust port, it will be discharged through the discharge chute, preventing debris from accumulating inside the chimney and improving the safety of the equipment.

[0019] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0020] 1. Breaking through the limitation of single-sided heating and improving heating efficiency, the heating chamber is set inside the concave container, changing the limitation of traditional single-sided heating only at the bottom. This allows the water to come into contact with the heat source from multiple directions inside, expanding the heating area, accelerating the rise of water temperature, and significantly improving heating efficiency.

[0021] 2. The flame arrestor tubes impede flow and retain heat, enhancing heat conduction. The staggered flame arrestor tubes in the heating chamber block the high-temperature airflow, slowing down the flow rate and prolonging its residence time, thus promoting full heat conduction between the high-temperature gas and the flame arrestor tubes and the heating chamber wall, thereby improving the heating efficiency of the water.

[0022] 3. Dual utilization of waste heat, high efficiency and energy saving: The shared wall design of the chimney and concave container allows the waste heat of the flue gas discharged from the heating chamber to heat the water from the outside through the shared wall surface, forming a dual heating mode inside and outside, which efficiently utilizes heat energy, further improves heating efficiency and saves energy.

[0023] 4. Anti-clogging and easy maintenance, ensuring smooth operation: The through holes on the surface of the spray rack also serve as a sieving function, blocking food falling during cooking and reducing drain blockage; The inclined surface design of the heating chamber corresponding to the drain provides an exposed cleaning space when the drain is blocked, making it easy for staff to unclog and ensuring long-term stable operation of the equipment. Attached Figure Description

[0024] Figure 1 is a schematic diagram of the main structure of this utility model;

[0025] Figure 2 is a cross-sectional view of the internal structure of the concave container of this utility model;

[0026] Figure 3 is a cross-sectional view of the structure of the present invention after the fixing frame, noodle cooking basket and filter frame in Figure 2 have been removed;

[0027] Figure 4 is a schematic diagram of the internal structure of the concave container of this utility model;

[0028] Figure 5 is a schematic diagram of the heating cavity structure of this utility model;

[0029] Figure 6 is a schematic diagram of the jet frame structure of this utility model;

[0030] Figure 7 is a schematic diagram of the heating mechanism of this utility model;

[0031] Figure 8 is a schematic diagram of the chimney structure of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Concave container; 110. Drain outlet; 111. Drain pipe; 120. Overflow outlet; 121. Overflow pipe; 122. Filter rack; 130. Raised strip; 200. Heating mechanism; 210. Air inlet pipe; 220. Support; 300. Heating chamber; 310. Flame arrestor pipe; 400. Spray frame; 410. Support frame; 411. Fixing strip; 500. Chimney; 510. Smoke duct; 520. Extension strip; 600. Fixing frame; 610. Noodle cooking basket. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to Figures 1-8. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0035] A commercial gas-fired noodle cooking device, as shown in Figures 1, 3, 4 and 5, includes a water storage structure, which includes a concave container 100 and a heating mechanism 200. The concave container 100 is a water tank that can hold water or other liquids. The heating mechanism 200 is a gas stove that is connected to an external gas source through its own air inlet to supply gas and enable the heating mechanism 200 to spray high-temperature airflow outward.

[0036] An air inlet pipe 210 is provided at the air outlet of the heating mechanism 200. The air inlet pipe 210 is fixed and passes through the lower wall of the concave container 100. A heating chamber 300 is provided at the end of the air inlet pipe 210. The heating chamber 300 has a box-shaped structure and is connected to the inner wall of the heating chamber 300 through the air inlet pipe 210, so that when the heating mechanism 200 is working, the high-temperature airflow ejected upward can enter the heating chamber 300 through the air inlet pipe 210.

[0037] Since the heating chamber 300 is located inside the concave container 100, the heating chamber 300 can heat the water inside the concave container 100 from inside the concave container 100 through heat conduction. This means that the heat source of the water is not limited to the bottom of the concave container 100. By expanding the heating area of ​​the water source, the water inside the concave container 100 can be heated faster, thus improving the heating efficiency.

[0038] An exhaust assembly is provided on one side of the heating chamber 300. After the high-temperature gas flow in the heating chamber 300 heats the liquid, it is discharged through the exhaust assembly. The exhaust assembly can discharge the high-temperature gas in the heating chamber 300 while preventing the liquid in the concave container 100 from entering the heating chamber 300.

[0039] Specifically, as shown in Figures 3 and 4, the heating chamber 300 is connected to the side wall of the concave container 100. One side of the heating chamber 300 is designed as an open type. The edge of the opening of the heating chamber 300 is welded to the side wall of the concave container 100. A smoke outlet is opened at the position corresponding to the opening of the concave container 100 and the heating chamber 300. This smoke outlet is the exhaust component, which allows high-temperature flue gas to be discharged through the smoke outlet of the heating chamber 300 at the connection point with the concave container 100. Since the heating chamber 300 is welded to the concave container 100, water or other liquids in the concave container 100 cannot enter the interior of the heating chamber 300.

[0040] It is worth mentioning that, as shown in Figure 7, the heating mechanism 200 also includes a U-shaped bracket 220 disposed at the bottom of the gas stove, and the two upper ends of the U-shaped bracket 220 extend outwards with extension strips, and through holes for insertion are opened on the surface of the extension strips.

[0041] The bracket 220 and the gas stove are fixed to the lower part of the concave container 100 by means of the through hole, and the heating mechanism 200 can be installed and disassembled.

[0042] As shown in Figures 3, 4, and 5, multiple flame arrestor tubes 310 are installed near the smoke outlet inside the heating chamber 300. The flame arrestor tubes 310 are arranged linearly. Through the design of the flame arrestor tubes 310, the high-temperature gas in the heating chamber 300 will pass through the gaps between the multiple flame arrestor tubes 310 before being discharged through the smoke outlet. By blocking the high-temperature gas flow, the flame arrestor tubes 310 can slow down the flow speed of the high-temperature gas, so that the high-temperature gas can be retained in the heating chamber 300 to fully heat the heating chamber 300, thereby improving the heating efficiency of the water source.

[0043] Specifically, as shown in Figure 5, the flame arrestor tube 310 is a hollow cylindrical structure. Through holes are provided at the connection points between the upper and lower walls of the heating chamber 300 and the ends of the flame arrestor tube 310. When water is injected into the concave container 100, the water source can pass through the through holes of the heating chamber 300 and be immersed in the cavity inside the flame arrestor tube 310. Thus, the hollow flame arrestor tube 310 increases the heating area of ​​the water source, thereby improving the heating efficiency.

[0044] Furthermore, as shown in Figures 4 and 5, multiple flame arresters 310 are arranged in a staggered manner with respect to the direction of high-temperature airflow, which enables the flame arresters 310 to further block the flow velocity of the high-temperature airflow, thereby further improving the heating efficiency.

[0045] As shown in Figures 4 and 7, a drain outlet 110 is provided at one corner of the inner bottom surface of the concave container 100, and a drain pipe 111 is installed on the outer bottom surface of the concave container 100 corresponding to the drain outlet 110. A valve is provided at the bottom of the drain pipe 111 to facilitate drainage.

[0046] The heating chamber 300 has an inclined surface at one end corresponding to the drain outlet 110. Since the drain outlet 110 is located at the corner, debris will block the drain outlet 110 when draining. The inclined surface provides space above the drain outlet 110 for easy cleaning, allowing workers to clean and unclog the drain outlet 110 through the exposed space.

[0047] Specifically, as shown in Figures 3 and 6, a jetting frame 400 is provided inside the concave container 100 and above the heating chamber 300, and a gap capable of accommodating liquid is formed between the jetting frame 400 and the heating chamber 300; the surface of the jetting frame 400 has multiple sets of through holes arranged in a ring array. When water is injected into the concave container 100, the water source can pass through the through holes on the surface of the jetting frame 400 and fill the gap between the jetting frame 400 and the heating chamber 300, so that the outer wall of the heating chamber 300 can fully contact the water source;

[0048] Furthermore, through the design of the spray frame 400 and the through hole, it has a screening and filtering function. If food falls during the cooking process, the spray frame 400 will block the falling food, thereby reducing the clogging of the drain outlet 110 to a certain extent.

[0049] It is worth mentioning that, as shown in Figures 2 and 6, a fixing frame 600 is provided above the inner cavity of the concave container 100. The fixing frame 600 has a circular through groove to place the noodle cooking basket 610. The noodle cooking basket 610 has a mesh cylinder structure and multiple sets of through holes distributed in a ring array. Each set of through holes corresponds to the bottom of each noodle cooking basket 610.

[0050] When cooking is required, external water is injected into the concave container 100 until the water level does not exceed the horizontal line of the fixing frame 600. Then, the food to be cooked is placed in the noodle cooking basket 610 and placed on the circular through groove of the fixing frame 600. The water in the concave container 100 is heated. After the water is heated to boiling through the heating chamber 300, the water and steam flow upward during the boiling process, allowing the boiling water to pass through the through holes on the surface of the spray frame 400 and spray onto the bottom of the noodle cooking basket 610. This allows the water flow rate above the spray frame 400 to be faster, thereby improving the heating and cooking speed of the food.

[0051] Furthermore, as shown in Figures 2 and 3, protrusions 130 extend inward from the two inner sidewalls of the concave container 100. The fixing frame 600 is installed by placing it on the protrusions 130, which facilitates the assembly and disassembly of the fixing frame 600.

[0052] Specifically, as shown in Figures 3 and 6, a support frame 410 is provided extending downward from the lower side wall of the jet streamer 400. There are three support frames 410, which are respectively provided below the three side walls of the jet streamer 400. The other side wall of the jet streamer 400 without a support frame 410 is attached to the inner side wall of the concave container 100 and is located above the smoke outlet. A fixing strip 411 for lifting is provided extending from the upper part of this side wall.

[0053] The jetting frame 400 can be abutted against the bottom surface of the concave container 100 through the support frame 410 at the bottom. With the design of the fixing strip 411, it is convenient to install and disassemble the jetting frame 400, and facilitate the cleaning and maintenance of the jetting frame 400 and the interior of the concave container 100 in the future.

[0054] As shown in Figures 1, 3 and 8, a chimney 500 is installed on one side wall of the concave container 100 corresponding to the smoke outlet, so that the high-temperature flue gas in the heating chamber 300 can enter the interior of the chimney 500 through the smoke outlet. A smoke exhaust trough 510 is provided at the upper end of the chimney 500.

[0055] Since the high-temperature airflow in the heating chamber 300 is heated by heat conduction, the temperature of the flue gas it produces is relatively low. At this time, the flue gas will enter the interior of the chimney 500 through the flue outlet. The flue gas still has residual heat. Through the common wall surface of the chimney 500 and the concave container 100, the flue gas heats the water source from the outside to the inside through heat conduction.

[0056] Furthermore, since the area of ​​the flue trough 510 is smaller than that of the flue outlet, the high-temperature flue gas inside the chimney 500 can remain inside the chimney 500 before being discharged from the flue trough 510. This allows the waste heat of the flue gas to fully heat the water. Thus, through the design of the common wall of the chimney 500, the heating chamber 300 heats the water source from inside the concave container 100 while simultaneously heating the water source from the outside using the waste heat of the flue gas. This allows for efficient utilization of the waste heat energy and improves the water source heating efficiency through bidirectional heating from both inside and outside.

[0057] Furthermore, as shown in Figure 3, a discharge chute is provided through the bottom of the chimney 500. If debris falls into the exhaust chute 510 of the chimney 500, the debris will be discharged from the chimney 500 through the discharge chute, preventing the accumulation of debris inside the chimney 500. This avoids the debris inside the chimney 500 being heated and burned by the high-temperature flue gas, thereby improving the safety of equipment use.

[0058] It is worth mentioning that, as shown in Figure 8, extension strips 520 extend outward from both sides of the chimney 500. The surface of the extension strips 520 has through holes for inserting screws. By passing the through holes through the surface of the extension strips 520 and screwing them into the threaded holes on the wall of the concave container 100, the chimney 500 can be fixed, thereby allowing the chimney 500 to be disassembled and assembled, facilitating the maintenance and cleaning of the chimney 500.

[0059] As shown in Figures 2, 4 and 7, an overflow outlet 120 is also provided on the upper side of the concave container 100. An L-shaped water supply pipe is connected to the bottom of the overflow outlet 120. The water supply pipe is connected to the drain pipe 111 through a bend, so that the overflow water and the water after use can be discharged through the same pipe, which improves convenience.

[0060] Furthermore, as shown in Figure 2, a filter frame 122 is placed at the overflow outlet 120. The filter frame 122 blocks the overflow outlet 110 to block debris in the overflowing water and prevent pipe blockage.

[0061] How to use this utility model:

[0062] First, it needs to be clarified that the heating mechanism 200 is a gas stove in the existing technology, so the model will not be limited here, nor will its structure be described in detail. Only the usage and installation position of the heating chamber 300 will be explained in detail.

[0063] When cooking is required, water is poured into the concave container 100. The water passes through the through-holes on the surface of the spray frame 400 and enters the gap between the spray frame 400 and the heating chamber 300, immersing the heating chamber 300 in the water. Water is then poured in until the water level does not exceed the horizontal line of the fixed frame 600. The heating mechanism 200 is then activated, spraying high-temperature airflow into the air inlet pipe 210. The high-temperature airflow enters the heating chamber 300 through the air inlet pipe 210, allowing the high-temperature gas to conduct heat to the water source through the heating chamber 300. Before the high-temperature gas is discharged through the flue, the flame arrestor 310 is heated. The flame arrestor 310 can not only further heat the water, but also block the flow rate of the high-temperature gas, so that the high-temperature gas can fully heat the water source through heat conduction. At this time, the flue gas discharged after the high-temperature gas is burned enters the interior of the chimney 500. The waste heat of the flue gas is heated from the outside to the inside through the common wall surface of the chimney 500 and the concave container 100, so as to further improve the heating efficiency and ensure the full utilization of waste heat. Finally, the flue gas is discharged from the exhaust trough 510.

[0064] Once the water source is heated to boiling, the noodle cooking basket 610 is placed in the through groove of the fixing frame 600. At this time, the noodle cooking basket 610 is immersed in the boiling water, so that the boiling water cooks the food in the noodle cooking basket 610. As the boiling water and steam rise, they will be sprayed onto the bottom surface of the noodle cooking basket 610 through the through holes on the surface of the spray frame 400 to improve the cooking efficiency.

[0065] This invention, through the design of the heating chamber 300, heats the water from inside the tank, so that the heating source is not limited to the bottom of the tank, thereby expanding the heating area of ​​the water source, enabling the water in the tank to heat up faster and improving heating efficiency.

[0066] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A commercial gas-fired noodle cooking device, comprising a water storage structure, the water storage structure including a concave container (100) and a heating mechanism (200), the heating mechanism (200) being capable of ejecting high-temperature airflow outward, characterized in that: The heating mechanism (200) has an air inlet pipe (210) at its outlet. The end of the air inlet pipe (210) penetrates the outer wall of the concave container (100) and has a heating chamber (300) at its end. The high-temperature airflow of the heating mechanism (200) can enter the heating chamber (300) through the air inlet pipe (210), so that the heating chamber (300) heats the liquid inside the concave container (100). An exhaust assembly is provided on one side of the heating chamber (300). The exhaust assembly can exhaust the high-temperature gas in the heating chamber (300) while preventing the liquid in the concave container (100) from entering the heating chamber (300).

2. The commercial gas-fired noodle cooking equipment as described in claim 1, characterized in that: A drain outlet (110) is provided at one corner of the bottom surface of the concave container (100). The heating chamber (300) is set as an inclined surface at one end of the drain outlet (110). If the drain outlet (110) is blocked, it can be cleaned and unblocked at the drain outlet (110) through the inclined surface of the heating chamber (300).

3. A commercial gas-fired noodle cooking device as described in claim 2, characterized in that: The concave container (100) is provided with a spray rack (400) above the heating chamber (300), and a gap is formed between the spray rack (400) and the heating chamber (300) to accommodate liquid; the surface of the spray rack (400) has multiple sets of through holes arranged in a ring array, and the spray rack (400) and the through holes can block debris falling during cooking.

4. A commercial gas-fired noodle cooking device as described in claim 1, characterized in that: The heating chamber (300) is connected to the side wall of the concave container (100), and the exhaust assembly is the smoke outlet at the connection between the heating chamber (300) and the concave container (100), through which high-temperature flue gas is discharged.

5. A commercial gas-fired noodle cooking device as described in claim 1, characterized in that: Multiple flame arrestor tubes (310) are provided in the heating chamber (300) near the smoke outlet. Before the high-temperature gas in the heating chamber (300) is discharged through the smoke outlet, the flow rate of the gas can be slowed down by the flame arrestor tubes (310), so that the high-temperature gas can be retained in the heating chamber (300).

6. A commercial gas-fired noodle cooking device as described in claim 5, characterized in that: The flame arrestor tube (310) is a hollow cylindrical structure. A through hole is provided at the part where the heating chamber (300) is connected to the end of the flame arrestor tube (310). When water is injected into the concave container (100), the water can pass through the through hole of the heating chamber (300) and be submerged in the cavity inside the flame arrestor tube (310).

7. A commercial gas-fired noodle cooking device as described in claim 5, characterized in that: The multiple flame arrestor tubes (310) are arranged alternately in the direction of high-temperature airflow.

8. A commercial gas-fired noodle cooking device as described in claim 3, characterized in that: A support frame (410) extends downward from the lower side wall of the jet frame (400), and the jet frame (400) abuts against the bottom surface of the concave container (100) through the support frame (410) at the bottom.

9. A commercial gas-fired noodle cooking device as described in claim 1, characterized in that: A chimney (500) is provided on the side wall of the concave container (100) at the position of the smoke outlet. The high-temperature flue gas in the heating chamber (300) can enter the interior of the chimney (500) through the smoke outlet. The chimney (500) and the concave container (100) share the same wall. A smoke exhaust trough (510) is provided at the upper end of the chimney (500). The size of the smoke exhaust trough (510) is smaller than the size of the smoke outlet, so that the high-temperature flue gas in the chimney (500) can stay in the chimney (500) before being discharged from the smoke outlet, so that the residual heat of the flue gas can be conducted to the water in the concave container (100) through its common wall.

10. A commercial gas-fired noodle cooking device as described in claim 9, characterized in that: The bottom of the chimney (500) is provided with a discharge chute. If debris falls into the smoke outlet of the chimney (500), the debris will be discharged from the chimney (500) through the discharge chute.

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