Commercial intelligent energy-saving gas stove

CN224905013UActive Publication Date: 2026-10-27权翠华
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Patent Information

Application Number
CN202522436570.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-10-27
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

商业场景中,清洗食材、餐具消毒、员工生活用水等均需消耗大量热水,这些热水通常需通过独立的电热水器、燃气热水器等设备制备,不仅增加了设备购置成本与厨房空间占用,还进一步加剧了能源消耗

Benefits of technology

1、节约了能源、提升了热利用效率。现有燃气灶的火焰通常仅作用于锅具底部用于烹饪。本技术方案充分利用了火焰四周和高温气体产生的余热实现水的加热,节约能源,符合绿色发展的方向。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of commercial intelligent energy-saving gas stoves, including hollow stove body, its characterized in that, blast engine is fixed in stove body, combustion controller, air inlet valve, power switch, temperature control display, stove body top surface is perforated and is fixed with stove top, stove top center is fixed with furnace core;Stove top inside is hollow water storage, water storage is equipped with inlet pipe and outlet pipe, stove top inner wall is perforated and is connected with flue, flue passes through water storage and extends to stove body outside;Air inlet valve is equipped with electric control valve, electric control valve is connected to combustion controller by wire, air inlet valve large flow outlet is connected to furnace core air inlet hole, small flow outlet is connected to furnace core fire hole;Ignition needle of combustion controller is inserted furnace core fire needle hole, its control line is connected to electric control valve;The output line of temperature control display is connected to solenoid valve, probe line end is temperature sensor.This scheme can realize heat recycling, have safety protection and intelligent control, and adapt to commercial scene high efficiency demand.
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Description

Technical Field

[0001] This technical solution relates to a gas stove, and more particularly to a commercial intelligent energy-saving gas stove. Background Technology

[0002] In the catering industry, commercial gas stoves, as core cooking equipment, directly impact cooking efficiency, energy consumption, and operational safety, and have long been a key area for technological optimization within the industry. While current commercial gas stoves on the market meet basic cooking needs, significant technological shortcomings remain in energy efficiency, safety features, and intelligent control. These shortcomings make them ill-suited to the comprehensive demands of modern commercial settings for energy conservation, environmental protection, safety, and high efficiency. Specifically, these shortcomings manifest in the following ways: First, energy waste is a prominent problem, with low thermal efficiency. Existing gas stoves typically use natural gas as fuel, and the heat generated by the flame only acts on the bottom of the pot for cooking. A large amount of heat (especially radiant heat spreading around the flame and conductive heat from the stove surface) is not effectively utilized and is directly lost into the air. This not only wastes heat and increases costs but also leads to additional carbon emissions, which is not in line with the direction of green development.

[0003] Secondly, there is insufficient safety protection. Because the heat radiating from the stove surface is not effectively managed, traditional gas stoves, after prolonged operation, cause the stove body and surrounding components to maintain a high temperature (typically exceeding 80°C) due to heat accumulation. In densely populated commercial kitchen environments with frequent operations, operators are highly susceptible to accidental contact with the hot stove surface while adding ingredients, cleaning, or adjusting cookware, leading to burns. Furthermore, the high temperature environment may accelerate the aging of wiring, seals, and other components around the stove, further increasing the safety hazards during equipment operation. Third, the functions are limited and the level of intelligence is low, lacking collaborative design. The core function of existing gas stoves focuses only on "cooking and heating," without being coordinated with other common kitchen needs (such as hot water supply). In commercial settings, washing ingredients, disinfecting tableware, and providing domestic water for employees all require a large amount of hot water. This hot water usually needs to be prepared by separate electric water heaters, gas water heaters, etc., which not only increases the cost of equipment purchase and kitchen space occupation, but also further aggravates energy consumption. In summary, current commercial gas stoves have significant shortcomings in energy utilization, safety protection, functional synergy, and intelligent control. There is a need for a new type of gas stove technology that can achieve heat recovery and utilization, combine safety protection and intelligent control, and meet the high-efficiency needs of commercial scenarios, in order to address the deficiencies of existing technologies and promote the energy-saving and intelligent upgrading of commercial kitchen equipment. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a commercial intelligent energy-saving gas stove that can achieve heat recovery and utilization, combines safety protection and intelligent control, and is adapted to the high-efficiency needs of commercial scenarios. The specific solution is as follows.

[0005] A commercial intelligent energy-saving gas stove, including a hollow stove body, is characterized in that a blower, a combustion controller, an air intake valve, a power switch, and a temperature control display are fixed inside the stove body, and a stove platform is fixed on the top surface of the stove body with an opening, and a stove core is fixed in the center of the stove platform. The stove platform is platform-shaped and surrounds the stove core. The inside of the stove platform is a hollow water storage tank. The water storage tank is equipped with an inlet pipe and an outlet pipe. The outlet pipe is equipped with a solenoid valve. The inner wall of the stove platform has an opening and is connected to a flue. The flue passes through the water storage tank and extends to the outside of the stove body. The inlet of the air intake valve is connected to the air intake pipe. The air intake valve is equipped with an electric control valve, which is connected to the combustion controller through a wire. The air intake valve has two outlets: a large flow outlet and a small flow outlet. The large flow outlet is equipped with a main gas valve and is connected to the furnace core air intake hole through a gas pipe. The small flow outlet is equipped with a ignition valve and is connected to the furnace core ignition hole through a gas pipe. The ignition needle of the combustion controller (also known as the stove flameout protection device) is inserted into the ignition needle hole of the furnace core, its control line is connected to the electric control valve (on the gas inlet valve), and its power line is connected to the power switch. The blower's output end is connected to the furnace core's air duct inlet via an air duct, and its power cord is connected to a power switch; The output line of the temperature control display is connected to the solenoid valve, and the end of the probe line is a temperature sensor located at the outlet of the water storage tank. Its power line is connected to the power switch.

[0006] The air duct is equipped with an air valve. The air valve controls the airflow by controlling the size of the air duct.

[0007] The inner wall of the furnace platform is inverted conical, and a ring-shaped mounting bracket is provided at the bottom. The furnace core is fixed to the center of the furnace platform through the mounting bracket.

[0008] The inlet and outlet pipe joints are located diagonally opposite each other in the water storage tank. This increases the water flow path, ensuring that the cold water is fully heated as it circulates clockwise or counterclockwise.

[0009] The flue includes a heat exchange pipe installed inside the water storage tank and a flue outlet pipe outside the water storage tank.

[0010] The heat exchange tube is annular and is interrupted by a baffle in an arc-shaped section. The flue gas inlet is connected to one side of the baffle, and the flue gas outlet is connected to the other side of the baffle. This design increases the travel distance of the high-temperature gas generated during combustion, requiring it to circulate completely before leaving the heat exchange tube, thus improving heat exchange efficiency. The heat exchange tube can also be configured as a spiral shape.

[0011] The combustion controller integrates a spark needle and a sensing needle in its ignition needle. The spark needle generates an electric spark to ignite the gas, while the sensing needle detects whether the gas is burning.

[0012] The outer end of the water outlet pipe is connected to an insulated water tank, which uses a water pump to deliver hot water to the water-using equipment.

[0013] The temperature control display, air valve, power switch, ignition valve, and main gas valve are located on the front panel of the stove body for easy operation.

[0014] The stove body is provided with a back panel at the rear, and the smoke outlet pipe extends from the stove body to the back panel interlayer and is discharged from the top of the back panel. The end of the smoke outlet pipe is covered with a smoke hood.

[0015] Compared with the prior art, this technical solution achieves the following technical effects. 1. It saves energy and improves heat utilization efficiency. Existing gas stoves typically only apply flame to the bottom of the pot for cooking. This technical solution fully utilizes the waste heat generated around the flame and from the high-temperature gas to heat water, saving energy and aligning with the direction of green development.

[0016] 2. This device is safer. Firstly, the hot water inside the stove automatically drains when it reaches 55℃, ensuring that the stove and surrounding area never reach scalding temperatures. This prevents operators from accidentally touching the hot stove surface and suffering burns during tasks such as adding ingredients, cleaning, or adjusting cookware. It also prevents premature aging of wiring, seals, and other components around the stove due to the high-temperature environment. Secondly, it fully utilizes the detection function of the combustion controller. If the gas supply is interrupted and the flame goes out, the combustion controller will continuously emit an alarm sound after receiving the signal through the sensor needle, alerting staff to prevent accidents.

[0017] 3. This device is multifunctional and highly intelligent. In commercial settings, large amounts of hot water are consumed for tasks such as washing ingredients, disinfecting tableware, and providing domestic water for employees. This device integrates cooking, waste heat heating and storage, automatic control, and safety protection. It not only meets the large demand for hot water but also fully utilizes the automatic control functions of the combustion controller and temperature display to monitor the water and gas circuits, making operation more intelligent and convenient. It also reduces the cost of purchasing separate water heating equipment and the space occupied in the kitchen, making it highly practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structural principle of Embodiment 1 of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model; Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of this utility model; Figure 4This is a schematic cross-sectional view of the furnace platform in Embodiment 1 of this utility model. Figure 1 ; Figure 5 This is a schematic cross-sectional view of the furnace platform in Embodiment 1 of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the structural principle of Embodiment 2 of this utility model; Figure 7 This is a three-dimensional structural diagram of the flue gas heat recovery system of Embodiment 2 of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Stove body; 2. Furnace core; 3. Stove platform; 3-1. Water storage tank; 3-2. Mounting bracket; 3-3. Water inlet pipe; 4. Blower; 4-1. Air valve; 5. Combustion controller (stove flameout protection device); 6. Air inlet valve (automatic shut-off valve); 6-1. Electrically controlled valve; 6-2. Ignition valve; 6-3. Main gas valve (gas flow control valve); 7. Power switch; 8. Temperature control display; 9. Solenoid valve; 10. Temperature sensor; 11. Water outlet pipe; 12. Flue; 12-1. Heat exchange tube; 12-2. Smoke outlet pipe; 12-3. Smoke inlet; 13. Air inlet pipe; 14. Insulated water tank; 15. Water pump; 16. Wire; 17. Back panel; 18. Smoke hood; 19. Insulated pot; 20. Smoke heat recovery system; 20-1. Water storage tank II; 20-2. Smoke exhaust fan; 20-3. Water outlet II; 20-4. Water inlet II; 20-5. Check valve. Detailed Implementation

[0020] Example 1, see appendix Figure 1-5 A commercial intelligent energy-saving gas stove, including a hollow stove body 1, characterized in that a blower 4, a combustion controller 5 (also known as a stove flameout protection device), an air inlet valve 6 (automatic shut-off valve), a power switch 7, and a temperature control display 8 are fixed inside the stove body 1, and a stove platform 3 is fixed on the top surface of the stove body 1, with a stove core 2 fixed in the center of the stove platform 3. The stove platform 3 is in the shape of a platform and surrounds the stove core 2. The interior of the stove platform 3 is a hollow water storage tank 3-1. The water storage tank 3-1 is equipped with a water inlet pipe 3-3 and a water outlet pipe 11. The water outlet pipe 11 is equipped with a solenoid valve 9. The inner wall of the stove platform 3 has an opening and a flue 12. The flue 12 passes through the water storage tank 3-1 and extends to the outside of the stove body 1. The inlet of the intake valve 6 is connected to the intake pipe 13. The intake valve 6 is equipped with an electric control valve 6-1. The electric control valve 6-1 is connected to the combustion controller 5 through the wire 16. The intake valve 6 has two outlets, one for high flow rate and one for low flow rate. The high flow rate outlet is equipped with a main gas valve 6-3 and is connected to the intake hole of the furnace core 2 through a gas pipe. The low flow rate outlet is equipped with a ignition valve 6-2 and is connected to the ignition hole of the furnace core 2 through a gas pipe. The ignition needle of the combustion controller 5 is inserted into the ignition needle hole of the furnace core 2, its control line (also known as the ignition valve line) is connected to the electric control valve 6-1, and its power line is connected to the power switch 7. The output end of the blower 4 is connected to the air duct inlet of the furnace core 2 through an air duct, and its power cord is connected to the power switch 7. The output line of the temperature control display 8 is connected to the solenoid valve 9, and the end of the probe line is a temperature sensor 10, which is set at the outlet of the water storage tank 3-1. Its power line is connected to the power switch 7.

[0021] The air duct is equipped with an air valve 4-1. The air valve 4-1 controls the airflow by controlling the size of the air duct.

[0022] The inner wall of the furnace platform 3 is inverted cone-shaped, and a ring mounting bracket 3-2 is provided at the bottom. The furnace core 2 is fixed to the center of the furnace platform 3 through the mounting bracket 3-2.

[0023] The connectors of the inlet pipe 3-3 and the outlet pipe 11 are respectively located diagonally opposite each other in the water storage tank 3-1. This increases the water flow path, ensuring that the cold water is fully heated as it circulates clockwise or counterclockwise.

[0024] The flue 12 includes a heat exchange pipe 12-1 installed inside the water storage tank 3-1 and a flue outlet pipe 12-2 outside the water storage tank 3-1.

[0025] The heat exchange tube 12-1 is annular and is interrupted by a baffle in an arc-shaped section. The flue gas inlet 12-3 is connected to one side of the baffle, and the flue gas outlet 12-2 is connected to the other side of the baffle. This design increases the travel distance of the high-temperature gas generated by combustion, requiring it to circulate once before leaving the heat exchange tube 12-1, thus improving heat exchange efficiency. The heat exchange tube 12-1 can also be configured as a spiral.

[0026] The combustion controller 5 integrates a spark needle and a sensing needle in its ignition needle. The spark needle generates an electric spark to ignite the gas, while the sensing needle detects whether the gas is burning.

[0027] The outer end of the water outlet pipe 11 is connected to the insulated water tank 14, and the insulated water tank 14 delivers hot water to the water-using equipment through the water pump 15.

[0028] The temperature control display 8, air valve 4-1, power switch 7, ignition valve 6-2, and main gas valve 6-3 are located on the front panel of the stove body 1 for easy operation.

[0029] The stove body 1 is provided with a back plate 17 at the rear. The smoke pipe 12-2 extends from the stove body 1 to the interlayer of the back plate 17 and is discharged from the top of the back plate 17. The end of the smoke pipe 12-2 is covered with a smoke hood 18.

[0030] The specific models are as follows: (1) The temperature control display model is W1411, which has five built-in buttons: stop temperature +, stop temperature -, switch / set, start temperature +, and start temperature -, as well as three display screens: stop temperature, time, and start temperature. The temperature control display can set the start temperature by setting the start temperature + and - buttons, thereby sending a start signal to the solenoid valve. It can also set the stop temperature by setting the stop temperature + and - buttons. The temperature source is obtained through a temperature sensor; (2) The air intake valve model is KG12-30DC, with an operating ambient temperature of -20℃ to 60℃ and a maximum working pressure of 5kpa; (3) The combustion controller (also known as the stove flameout protection device) model is "Youliding" HY-CLT1, which has a built-in power cord, control cord (also known as the ignition valve cord), ignition cord (connected to the ignition needle), detection cord (connected to the sensing needle), and ground cord (grounding cord); (4) The blower model is Yongqiang YY9435-220.

[0031] The principle behind this embodiment is as follows: 1. Turn on the power switch: (1) The temperature control display is powered on and the temperature of the water outlet of the water storage tank is obtained through the temperature sensor; (2) The blower is powered on and a small amount of air is delivered to the furnace core through the air duct; (3) The combustion controller is powered on and the electric control valve is opened through the control line. The gas enters the air intake valve, and the ignition needle starts to generate an electric spark.

[0032] 2. Ignition: By opening the ignition valve, a small amount of gas is delivered to the ignition hole of the furnace core. The furnace core obtains gas and sparks, which meet the conditions for ignition, and the flame is ignited.

[0033] 3. Cooking: The main gas valve increases the gas supply, and a large amount of gas is continuously supplied to the furnace core air inlet through the high flow end. At the same time, the air valve increases the furnace core air volume, resulting in a very strong flame that meets the needs of commercial cooking.

[0034] If the flame remains extinguished due to a gas outage (usually preset for 5 seconds), the combustion controller will continuously emit a warning sound after receiving the signal through the sensor needle, reminding staff to pay attention and avoid safety accidents.

[0035] 4. Waste heat utilization: While the flames are burning and heating the bottom of the pot, the heat generated also heats the inner wall of the furnace, which in turn heats the water in the water storage tank. At the same time, the high-temperature gas generated will enter the heat exchange tube through the flue gas inlet and further heat the water around the heat exchange tube, and finally be discharged through the flue gas outlet.

[0036] 5. Hot water management: After the water in the storage tank is continuously heated: (1) When the preset start temperature (e.g., 55°C) of the temperature control display is reached, the temperature sensor sends a signal to the temperature control display and opens the solenoid valve, and the hot water in the storage tank is squeezed out by the tap water in the inlet pipe; (2) When the hot water in the storage tank is discharged and cold water is filled, and the temperature drops to the stop temperature (e.g., 45°C), the temperature sensor sends a signal to the temperature control display and closes the solenoid valve, and the cold water in the storage tank continues to be heated.

[0037] The obtained hot water can be used for washing vegetables, dishes, pots, and replenishing pots, as well as for domestic use such as bathing and underfloor heating. This device features an insulated water tank at the outlet pipe for hot water storage, and a water pump further enhances its practicality by delivering the hot water to other water-using devices.

[0038] However, it should be noted that: (1) the inlet and outlet pipe joints of the water storage tank are set at opposite corners of the water storage tank, which can increase the water flow path and make the cold water heat up better and more fully during the process from the inlet pipe to the outlet pipe, avoiding dead corners; (2) the end of the outlet pipe extends upward to the top inside the water storage tank. Because the density of hot water is less than that of cold water, cold water is usually at the bottom and hot water is at the top, which can make the hot water discharged in an orderly manner according to the temperature.

[0039] After testing this technical solution, it was found that under continuous cooking conditions, it can generate approximately 15-20L of heat per minute at 55°C.

[0040] 6. For further convenience, a heat preservation pot 19 and a water tap can be added to the stove body. The water tap can be connected to tap water, or hot water can be drawn from the outlet pipe through a three-way valve. The stove flame is strong and is usually used as a wok. The heat preservation pot stores clean water (or hot water) and is often used to replenish the water in the wok. Users can set it to one wok and one heat preservation pot (one wok plus one heat preservation pot), one wok and two heat preservation pots, or two woks and two heat preservation pots as needed.

[0041] Compared with the prior art, this technical solution achieves the following technical effects. 1. It saves energy and improves heat utilization efficiency. Existing gas stoves typically only apply flame to the bottom of the pot for cooking. This technical solution fully utilizes the waste heat generated around the flame and from the high-temperature gas to heat water, saving energy and aligning with the direction of green development.

[0042] 2. This device is safer. Firstly, the hot water inside the stove automatically drains when it reaches 55℃, ensuring that the stove and surrounding area never reach scalding temperatures. This prevents operators from accidentally touching the hot stove surface and suffering burns during tasks such as adding ingredients, cleaning, or adjusting cookware. It also prevents premature aging of wiring, seals, and other components around the stove due to the high-temperature environment. Secondly, it fully utilizes the detection function of the combustion controller. If the gas supply is interrupted and the flame goes out, the combustion controller will continuously emit an alarm sound after receiving the signal through the sensor needle, alerting staff to prevent accidents.

[0043] 3. This device is multifunctional and highly intelligent. In commercial settings, large amounts of hot water are consumed for tasks such as washing ingredients, disinfecting tableware, and providing domestic water for employees. This device integrates cooking, waste heat heating and storage, automatic control, and safety protection. It not only meets the large demand for hot water but also fully utilizes the automatic control functions of the combustion controller and temperature display to monitor the water and gas circuits, making operation more intelligent and convenient. It also reduces the cost of purchasing separate water heating equipment and the space occupied in the kitchen, making it highly practical.

[0044] Example 2, see appendix Figure 6-7 A commercial intelligent energy-saving gas stove, including a hollow stove body, characterized in that a blower, a combustion controller, an air inlet valve, a power switch, and a temperature control display are fixed inside the stove body, and a stove platform is fixed on the top surface of the stove body with an opening, and a stove core is fixed in the center of the stove platform. The stove platform is platform-shaped and surrounds the stove core. The inside of the stove platform is a hollow water storage tank. The water storage tank is equipped with an inlet pipe and an outlet pipe. The outlet pipe is equipped with a solenoid valve. The inner wall of the stove platform has an opening and is connected to a flue. The flue passes through the water storage tank and extends to the outside of the stove body. The inlet of the air intake valve is connected to the air intake pipe. The air intake valve is equipped with an electric control valve, which is connected to the combustion controller through a wire. The air intake valve has two outlets: a large flow outlet and a small flow outlet. The large flow outlet is equipped with a main gas valve and is connected to the furnace core air intake hole through a gas pipe. The small flow outlet is equipped with a ignition valve and is connected to the furnace core ignition hole through a gas pipe. The ignition needle of the combustion controller (also known as the stove flameout protection device) is inserted into the ignition needle hole of the furnace core, its control line is connected to the electric control valve (on the gas inlet valve), and its power line is connected to the power switch. The blower's output end is connected to the furnace core's air duct inlet via an air duct, and its power cord is connected to a power switch; The output line of the temperature control display is connected to the solenoid valve, and the end of the probe line is a temperature sensor located at the outlet of the water storage tank. Its power line is connected to the power switch.

[0045] The air duct is equipped with an air valve. The air valve controls the airflow by controlling the size of the air duct.

[0046] The inner wall of the furnace platform is inverted conical, and a ring-shaped mounting bracket is provided at the bottom. The furnace core is fixed to the center of the furnace platform through the mounting bracket.

[0047] The inlet and outlet pipe joints are located diagonally opposite each other in the water storage tank. This increases the water flow path, ensuring that the cold water is fully heated as it circulates clockwise or counterclockwise.

[0048] The flue includes a heat exchange pipe installed inside the water storage tank and a flue outlet pipe outside the water storage tank.

[0049] The heat exchange tube is annular and is interrupted by a baffle in an arc-shaped section. The flue gas inlet is connected to one side of the baffle, and the flue gas outlet is connected to the other side of the baffle. This design increases the travel distance of the high-temperature gas generated during combustion, requiring it to circulate completely before leaving the heat exchange tube, thus improving heat exchange efficiency. The heat exchange tube can also be configured as a spiral shape.

[0050] The combustion controller integrates a spark needle and a sensing needle in its ignition needle. The spark needle generates an electric spark to ignite the gas, while the sensing needle detects whether the gas is burning.

[0051] The outer end of the water outlet pipe is connected to an insulated water tank, which uses a water pump to deliver hot water to the water-using equipment.

[0052] The temperature control display, air valve, power switch, ignition valve, and main gas valve are located on the front panel of the stove body for easy operation.

[0053] The stove body is equipped with a smoke and heat recovery system 20. The smoke and heat recovery system includes: a sealed water storage tank II 20-1 outside the smoke outlet pipe, a smoke exhaust fan 20-2 at the top of the water storage tank II, the smoke exhaust fan being connected to the end of the smoke outlet pipe, a water inlet II 20-4 at the bottom of the water storage tank II, a water outlet II 20-3 at the top, and the water outlet II being connected to the water inlet of the stove platform through a water inlet pipe.

[0054] The flue pipe is S-shaped inside the water storage tank. The S-shape increases the flue pipe path and enhances the heat exchange rate.

[0055] The water inlet pipe is equipped with a check valve 20-5 and a solenoid valve near the furnace inlet. The solenoid valve is connected to the temperature control display via a wire. The check valve (one-way valve) can effectively prevent the backflow of high-temperature water in the furnace.

[0056] Compared with Example 1, this example adds a smoke and heat recovery system at the rear of the stove.

[0057] The high-temperature gas in the flue gas pipe undergoes a heat exchange in the furnace, and the remaining secondary high-temperature gas undergoes a second heat exchange in the flue gas heat recovery system, fully transferring the heat energy to the water.

[0058] The principle is as follows: the flue gas heat recovery system can preheat the water entering the furnace. The cold water (tap water) first enters the water storage tank II, and after exchanging heat with the secondary high temperature gas in the flue gas pipe, it flows out from the water outlet at the top and enters the furnace through the water inlet pipe.

[0059] The technical benefits are: firstly, it makes full use of the waste heat in the flue pipe, improving the thermal energy utilization rate and benefiting the environment; secondly, the tap water is preheated before entering the furnace, improving the heating efficiency and enabling the water in the furnace to be heated to the preset temperature in a shorter time.

[0060] After autumn testing, if only the furnace platform is used for heat exchange, the gas temperature at the end of the flue is close to 100 degrees Celsius, while after adding the flue heat recovery system, the gas temperature at the end of the flue is close to 30 degrees Celsius.

Claims

1. A commercial intelligent energy-saving gas stove, comprising a hollow stove body, characterized in that, The stove body is equipped with a blower, a combustion controller, an air intake valve, a power switch, and a temperature control display. The top surface of the stove body has an opening and a stove platform is fixed thereon. The stove core is fixed in the center of the stove platform. The stove platform is platform-shaped and surrounds the stove core. The inside of the stove platform is a hollow water storage tank. The water storage tank is equipped with an inlet pipe and an outlet pipe. The outlet pipe is equipped with a solenoid valve. The inner wall of the stove platform has an opening and is connected to a flue. The flue passes through the water storage tank and extends to the outside of the stove body. The inlet of the air intake valve is connected to the air intake pipe. The air intake valve is equipped with an electric control valve, which is connected to the combustion controller through a wire. The air intake valve has two outlets: a large flow outlet and a small flow outlet. The large flow outlet is equipped with a main gas valve and is connected to the furnace core air intake hole through a gas pipe. The small flow outlet is equipped with a ignition valve and is connected to the furnace core ignition hole through a gas pipe. The ignition needle of the combustion controller is inserted into the ignition needle hole of the furnace core, its control line is connected to the electric control valve, and its power line is connected to the power switch. The blower's output end is connected to the furnace core's air duct inlet via an air duct, and its power cord is connected to a power switch; The output line of the temperature control display is connected to the solenoid valve, and the end of the probe line is a temperature sensor located at the outlet of the water storage tank. Its power line is connected to the power switch.

2. The commercial intelligent energy-saving gas stove according to claim 1, characterized in that, The air duct is equipped with an air valve.

3. The commercial intelligent energy-saving gas stove according to claim 1, characterized in that, The inner wall of the furnace platform is inverted conical, and a ring-shaped mounting bracket is provided at the bottom. The furnace core is fixed to the center of the furnace platform through the mounting bracket.

4. The commercial intelligent energy-saving gas stove according to claim 1, characterized in that, The inlet and outlet pipe joints are respectively located at opposite corners of the water storage tank.

5. The commercial intelligent energy-saving gas stove according to claim 1, characterized in that, The flue includes a heat exchange pipe installed inside the water storage tank and a flue outlet pipe outside the water storage tank.

6. The commercial intelligent energy-saving gas stove according to claim 5, characterized in that, The heat exchange tube is annular and is separated by a partition in an arc section. The flue gas inlet is connected to one side of the partition, and the flue gas outlet is connected to the other side of the partition.

7. The commercial intelligent energy-saving gas stove according to claim 5, characterized in that, The heat exchange tube is configured as a spiral.

8. The commercial intelligent energy-saving gas stove according to claim 1, characterized in that, The outer end of the water outlet pipe is connected to an insulated water tank, which uses a water pump to deliver hot water to the water-using equipment.

9. The commercial intelligent energy-saving gas stove according to claim 2, characterized in that, The temperature control display, air valve, power switch, ignition valve, and main gas valve are located on the front panel of the stove body.

10. The commercial intelligent energy-saving gas stove according to claim 5, characterized in that, The stove body is equipped with a smoke and heat recovery system. The structure of the smoke and heat recovery system includes: a sealed water storage tank II outside the smoke outlet pipe, a smoke exhaust fan at the top of the water storage tank II, the smoke exhaust fan being connected to the end of the smoke outlet pipe, a water inlet II at the bottom of the water storage tank II, a water outlet II at the top, and the water outlet II being connected to the water inlet of the stove platform through a water inlet pipe.