Diversion gas stove

By designing the flow guide protrusion and exhaust channel, the problems of heat loss and scale buildup in the exhaust holes of commercial gas cookware are solved, achieving efficient combustion and stability, and improving thermal efficiency and safety.

CN224284716UActive Publication Date: 2026-05-26SHANDONG HUAJIE KITCHEN IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HUAJIE KITCHEN IND CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing furnace structure design of commercial gas cookware results in significant heat loss and low thermal efficiency. Furthermore, the flue gas vents are prone to scale buildup, leading to reduced efficiency and unstable combustion.

Method used

The design incorporates a guide protrusion and a flue gas exhaust channel to reduce the gap between the boiler body and the burner. The guide protrusion has a guide port to guide the flue gas to circulate around the bottom of the boiler body. The flue gas exhaust channel is higher than the guide protrusion to ensure that the flue gas is discharged after sufficient heat exchange. At the same time, a viewing hole and an air regulating valve are provided to regulate the air volume.

Benefits of technology

It improves heat utilization, enhances combustion stability, reduces heat loss, prevents scale buildup in exhaust vents, and improves combustion efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224284716U_ABST
    Figure CN224284716U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of fuel stove technology, specifically relating to a flow-guiding gas stove, including a frame, a furnace body inside the frame, a flow-guiding protrusion inside the furnace body, the outer wall of the flow-guiding protrusion fitting against the inner wall of the furnace body, two symmetrical flow-guiding ports on the flow-guiding protrusion, a pot body fitted on the top of the furnace body, the bottom of the pot body abutting against the inner edge of the flow-guiding protrusion, a smoke exhaust channel and a viewing hole on the furnace body, the height of the smoke exhaust channel being higher than the height of the flow-guiding protrusion, a burner penetrating through the bottom of the furnace body, an air supply pipe at the bottom of the burner, and a blower connected to the end of the air supply pipe furthest from the burner. This device can solve the problem of low thermal efficiency caused by excessive furnace clearance, improve heat utilization, and enhance combustion stability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of fuel stove technology, specifically relating to a flow-guiding gas stove. Background Technology

[0002] In the commercial gas cookware industry, the design of the furnace structure has a crucial impact on thermal efficiency. Currently, most mainstream commercial gas cookware on the market has a large gap between the pot and the furnace. As a result, the heat generated during combustion cannot be fully applied to the cookware, and the high-temperature flue gas has a short residence time in the furnace. Most of the heat is discharged directly into the environment through the chimney without being effectively utilized, resulting in energy waste and high fuel costs in the long run.

[0003] Chinese patent CN220506778U discloses a furnace and gas stove with improved thermal efficiency. The furnace includes a furnace body and a furnace ring located at the upper end of the furnace body. The furnace ring includes an outer furnace ring and an inner furnace ring located inside the outer furnace ring. The inner furnace ring has an inner ring that protrudes radially from the inner ring of the outer furnace ring. The inner ring of the inner furnace ring has a number of vertically penetrating exhaust holes distributed circumferentially. The number of exhaust holes is ≥8. The exhaust holes are used to discharge the flue gas in the furnace while transferring the heat of the flue gas to the bottom of the pot. This patent can increase the heating area of ​​the wok, making the heating more even and improving the thermal efficiency of the stove. The wok is also less prone to deformation. However, the upper part of the exhaust hole of this patent is a rectangular slot and the lower part is a circular hole. During high-frequency use, oil and carbon residue are easy to accumulate at the junction of the slot and the countertop, clogging the exhaust hole and causing a decrease in thermal efficiency. In addition, for small-sized furnace structures, if there are too many exhaust holes, it will result in too little resistance to flue gas flow and compress the flame space, affecting the combustion stability. Utility Model Content

[0004] The purpose of this invention is to provide a flow-guiding gas stove that can solve the problem of low thermal efficiency caused by excessive gaps in the combustion chamber, while avoiding the efficiency reduction problem caused by scale buildup in the exhaust vent, thereby improving heat utilization and enhancing combustion stability.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A flow-guiding gas stove includes a frame, inside which is a combustion chamber body. A flow-guiding protrusion is provided inside the combustion chamber body, and the outer wall of the flow-guiding protrusion is fitted to the inner wall of the combustion chamber body. Two flow-guiding ports are symmetrically arranged on the flow-guiding protrusion. A pot body is fitted on the top of the combustion chamber body, and the bottom of the pot body abuts against the inner edge of the flow-guiding protrusion. A smoke exhaust channel and a viewing hole are provided on the combustion chamber body. The height of the smoke exhaust channel is higher than the height of the flow-guiding protrusion. A burner is installed through the bottom of the combustion chamber body, and an air supply pipe is provided at the bottom of the burner. A blower is connected to the end of the air supply pipe away from the burner.

[0007] Furthermore, the air supply duct is equipped with a ignition pipe interface and a main gas pipe interface.

[0008] Furthermore, the frame is equipped with a ignition valve and a main gas valve, respectively, to match the ignition pipeline interface and the main gas pipeline interface.

[0009] Furthermore, one end of the ignition valve is connected to the ignition pipeline interface via a pipe, and the other end of the ignition valve is connected to the external gas pipeline via a pipe.

[0010] Furthermore, one end of the main gas valve is connected to the main gas pipeline interface via a pipe, and the other end of the main gas valve is connected to the external gas pipeline via a pipe.

[0011] Furthermore, the end of the blower furthest from the air supply duct is connected to an air inlet duct, and the end of the air inlet duct furthest from the blower is connected to the outside.

[0012] Furthermore, an air regulating valve is installed on the frame, and the air regulating valve is installed in conjunction with the air inlet duct.

[0013] Furthermore, two ignition needles are installed at the bottom of the furnace body to match the burner.

[0014] Furthermore, a sensing needle is placed between the two ignition needles.

[0015] Furthermore, a swing faucet is installed on the frame to match the pot body.

[0016] The beneficial effects of this utility model are as follows:

[0017] The outer wall of the guide protrusion fits snugly against the inner wall of the furnace body, and the bottom of the pot rests against the inner edge of the guide protrusion, reducing the heat loss problem caused by excessive gaps in traditional gas stoves. High-temperature flue gas is guided by the guide protrusion and discharged through symmetrical guide ports on both sides, forming a heat flow path around the pot body, extending the residence time of flue gas in the furnace body, allowing heat to be fully transferred to the bottom of the pot, and improving heat utilization. The height of the exhaust channel is higher than the height of the guide protrusion, so that the flue gas flows fully along the bottom of the pot body before being discharged through the exhaust channel, leaving sufficient combustion space for the flame and avoiding thermal efficiency reduction caused by too many exhaust holes or unreasonable structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention with the pot body removed;

[0020] Figure 3 This is a structural schematic diagram of the furnace body, guide boss, smoke exhaust channel, observation hole, air supply pipeline, blower, ignition pipeline interface and main gas pipeline interface in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the furnace body, flue gas passage, observation hole, air supply pipeline, blower, ignition pipeline interface, main gas pipeline interface, ignition needle and induction needle in this utility model;

[0022] Figure 5 This is a top view of the pot body, furnace body, flue gas passage and observation hole of this utility model;

[0023] Figure 6 for Figure 5 Sectional view at point AA;

[0024] In the picture:

[0025] 1. Frame; 2. Furnace body; 3. Guide protrusion; 4. Guide port; 5. Boiler body; 6. Exhaust duct; 7. Observation hole; 8. Burner; 9. Air supply duct; 10. Blower; 11. Ignition pipe interface; 12. Main gas pipe interface; 13. Ignition valve; 14. Main gas valve; 15. Air regulating valve; 16. Ignition needle; 17. Induction needle; 18. Swinging faucet. Detailed Implementation

[0026] The present invention will now be described and illustrated in detail with reference to the embodiments.

[0027] Example 1

[0028] like Figure 1-6 As shown, the gas stove of this utility model includes a frame 1, a furnace body 2 inside the frame 1, a flow guide protrusion 3 inside the furnace body 2, the outer wall of the flow guide protrusion 3 is fitted to the inner wall of the furnace body 2, two flow guide ports 4 are symmetrically arranged on the flow guide protrusion 3, a pot body 5 is fitted to the top of the furnace body 2, the bottom of the pot body 5 abuts against the inner edge of the flow guide protrusion 3, a smoke exhaust channel 6 and a viewing hole 7 are provided on the furnace body 2, the height of the smoke exhaust channel 6 is higher than the height of the flow guide protrusion 3, a burner 8 is installed through the bottom of the furnace body 2, an air supply pipe 9 is installed at the bottom of the burner 8, and a blower 10 is connected to the end of the air supply pipe 9 away from the burner 8.

[0029] By setting a guide protrusion 3 inside the furnace body 2, the gap between the pot body 5 and the burner 8 is reduced, preventing heat loss through the gap. Two guide ports 4 are symmetrically arranged on the guide protrusion 3 to guide the high-temperature flue gas to form a flow path around the bottom of the pot body 5, extending the residence time of the flue gas in the furnace body 2. The height of the exhaust channel 6 is higher than the height of the guide protrusion 3, ensuring that the flue gas is fully heat-exchanged along the bottom of the pot body 5 before being discharged, while avoiding compression of the flame space and improving combustion stability. The observation hole 7 allows for real-time observation of the flame inside the furnace body 2, ensuring normal combustion status, guaranteeing combustion efficiency and safety, and facilitating regular cleaning of scale inside the furnace body 2 to prevent blockage of the exhaust channel 6, which would lead to a decrease in thermal efficiency.

[0030] The air supply duct 9 is equipped with a ignition pipe interface 11 and a main gas pipe interface 12. The ignition pipe interface 11 is used to connect the ignition gas supply, which can maintain a continuous and stable small flame and continue to burn after the burner 8 is extinguished, ensuring that the burner 8 can be ignited at any time; the main gas pipe interface 12 supplies a large amount of gas to the burner 8 to meet the gas demand for high heat and high load during cooking.

[0031] The frame 1 is equipped with a ignition valve 13 and a main gas valve 14, respectively, for the ignition pipe interface 11 and the main gas interface 12. The ignition pipe interface 11 requires a smaller gas flow rate, which is finely adjusted by the ignition valve 13 to maintain a stable small flame. The main gas interface 12 requires a larger gas flow rate, which is controlled by the main gas valve 14. The adjustment range is larger, and the gas flow rate can be flexibly adjusted.

[0032] One end of the ignition valve 13 is connected to the ignition pipeline interface 11 via a pipe, and the other end of the ignition valve 13 is connected to the external gas pipeline via a pipe.

[0033] One end of the main gas valve 14 is connected to the main gas pipeline interface 12 via a pipe, and the other end of the main gas valve 14 is connected to the external gas pipeline via a pipe.

[0034] The end of the blower 10 furthest from the air supply duct 9 is connected to an air inlet duct, and the end of the air inlet duct furthest from the blower 10 is connected to the outside. The blower 10 is connected to the outside through the air inlet duct to provide sufficient combustion air to the burner 8, ensuring that the gas and air are fully mixed and promoting complete combustion.

[0035] An air regulating valve 15 is installed on the frame 1, and the air regulating valve 15 is configured in conjunction with the air inlet pipe. The air regulating valve 15 is configured in the air inlet pipe to regulate the amount of air entering the furnace body 2, thereby improving combustion efficiency and reducing fuel consumption.

[0036] Two ignition needles 16 are installed at the bottom of the furnace body 2 in conjunction with the burner 8 to improve the ignition success rate.

[0037] A sensing needle 17 is positioned between the two ignition needles 16. The sensing needle 17 can detect the combustion status in real time, improving the safety of the stove.

[0038] A swing faucet 18 is installed on the frame 1 in conjunction with the pot body 5.

Claims

1. A flow-guided gas stove, comprising a frame (1), wherein a furnace body (2) is disposed inside the frame (1), characterized in that, A flow guide protrusion (3) is provided inside the furnace body (2). The outer wall of the flow guide protrusion (3) is fitted to the inner wall of the furnace body (2). Two flow guide ports (4) are symmetrically arranged on the flow guide protrusion (3). A pot body (5) is provided on the top of the furnace body (2). The bottom of the pot body (5) abuts against the inner edge of the flow guide protrusion (3). A smoke exhaust channel (6) and a fire observation hole (7) are provided on the furnace body (2). The height of the smoke exhaust channel (6) is higher than the height of the flow guide protrusion (3). A burner (8) is provided through the bottom of the furnace body (2). An air supply pipe (9) is provided at the bottom of the burner (8). A blower (10) is connected to the end of the air supply pipe (9) away from the burner (8).

2. The flow-guiding gas stove according to claim 1, characterized in that, The air supply duct (9) is equipped with a ignition pipe interface (11) and a main gas pipe interface (12).

3. The flow-guiding gas stove according to claim 2, characterized in that, The frame (1) is equipped with a ignition valve (13) and a main gas valve (14) respectively, which are connected to the ignition pipeline interface (11) and the main gas pipeline interface (12).

4. The flow-guiding gas stove according to claim 3, characterized in that, One end of the ignition valve (13) is connected to the ignition pipeline interface (11) via a pipe, and the other end of the ignition valve (13) is connected to the external gas pipeline via a pipe.

5. The flow-guiding gas stove according to claim 3, characterized in that, One end of the main gas valve (14) is connected to the main gas pipeline interface (12) through a pipe, and the other end of the main gas valve (14) is connected to the external gas pipeline through a pipe.

6. The flow-guiding gas stove according to claim 1, characterized in that, The blower (10) is connected to an air inlet pipe at the end away from the air supply pipe (9), and the end of the air inlet pipe away from the blower (10) is connected to the outside.

7. The flow-guiding gas stove according to claim 6, characterized in that, An air regulating valve (15) is installed on the frame (1), and the air regulating valve (15) is installed in conjunction with the air inlet pipe.

8. The flow-guiding gas stove according to claim 1, characterized in that, The bottom of the furnace body (2) is equipped with two ignition needles (16) in conjunction with the burner (8).

9. The flow-guiding gas stove according to claim 8, characterized in that, A sensing needle (17) is provided between the two ignition needles (16).

10. The flow-guiding gas stove according to claim 1, characterized in that, A swing faucet (18) is installed on the frame (1) in conjunction with the pot body (5).