Silent water tank oil and gas double stove

Abstract

A kind of mute water tank oil gas double stove, by support, stove shell, stove top, hearth, burner, pressure water tank, heat exchange flue, smoke collecting box, flue pipe is formed, the intersection of heat exchange flue and pressure water tank is saddle line, it is very easy to realize automatic welding;Heat exchange flue is a straight pipe, it is very easy to realize installation automation;There is no joint in heat exchange flue in pressure water tank, there is no possibility of water leakage.The utility model is half closed combustion mode, can guarantee the overall heating of pot, can speed up cooking speed.The smoke collecting box of the utility model is a smoke exhaust passage, is also an important component of hearth sound attenuation, is also the heating wing plate of pressure water tank, is also an important component of bottom heating of pressure water tank by hot air flow again, a component 4 functions, novel design, powerful.The utility model eliminates noise in the emission process of combustion waste smoke, waste heat is absorbed and utilized, has very high heat utilization efficiency.

Description

Technical Field

[0001] This utility model relates to an oil and gas stove, and more particularly to a silent water tank oil and gas dual stove. Background Technology

[0002] Currently, most of the stoves used for cooking in hotels and restaurants are single-function, non-energy-saving oil and gas stoves. These stoves do not have waste heat recovery systems installed, resulting in serious energy waste and excessive combustion noise. In 2024, I (Hou Guoshan) publicly disclosed a silent waste heat recovery commercial gas stove (CN220453723U, announcement date 20240206), which successfully solved the problems of high noise and waste heat recovery in gas stoves. After the product was launched on the market, it was warmly welcomed by users. However, some users raised two issues. The first issue is that because the furnace of the silent waste heat recovery commercial gas stove (CN220453723U, announcement date 20240206) is completely enclosed, the pot outside the furnace cannot be effectively heated, which results in cooking being slightly slower. The second issue is that because the heat exchange flue of the silent waste heat recovery commercial gas stove (CN220453723U, announcement date 20240206) must have a turning joint inside the pressurized water tank, this makes the weld seam prone to leakage. Moreover, the turning structure of the heat exchange flue is difficult to automate for robotic welding and installation. Summary of the Invention

[0003] To address the issues of slow cooking speed, water leakage from the pressurized water tank into the heat exchange flue, and difficulties in automated welding and installation of robots in silent waste heat recovery commercial oil and gas stoves (CN220453723U, announcement date 20240206), this utility model provides a silent water tank oil and gas dual stove.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A pressure-bearing water tank is installed and fixed at the bottom of the furnace. The lower end of the flue gas inlet is connected to the upper end of the heat exchange flue. The diameter of the heat exchange flue is smaller than the diameter of the pressure-bearing water tank. The heat exchange flue vertically passes through the pressure-bearing water tank. The heat exchange flue and the pressure-bearing water tank are welded together at their intersection. The upper part of the heat exchange flue is welded together with the upper part of the pressure-bearing water tank at their intersection. This weld is called the upper weld. The part of the heat exchange flue above the upper weld forms the annular wing plate of the pressure-bearing water tank. The lower end of the heat exchange flue is welded together with the lower part of the pressure-bearing water tank. This weld is called the lower weld. The section of the heat exchange flue from below the seam to above the lower weld seam constitutes the internal heat exchanger of the pressurized water tank; the upward-opening part of the smoke collection box is welded to the lower part of the pressurized water tank, and the smoke collection box and the lower part of the pressurized water tank together form a closed space; the lower end of the heat exchange flue opens at one end of the closed space formed by the smoke collection box and the lower part of the pressurized water tank, and the other end of the smoke collection box is installed and fixed to one end of the flue, one end of the flue is connected to the smoke collection box, and the other end of the flue is open to the atmosphere; the furnace is open to the atmosphere through the smoke inlet on the refractory core, the space enclosed by the annular wing plate, the internal heat exchanger, the smoke collection box, and the flue.

[0005] There are one or more pot support blocks behind the pot ring. The pot ring and the pot support blocks are integrally cast and formed, and the pot support blocks separate the pot ring and the pot by a gap.

[0006] The beneficial effects of this utility model are: noise is eliminated during the emission of waste smoke from combustion, and waste heat is absorbed and utilized, resulting in very high heat utilization efficiency.

[0007] This invention employs a semi-enclosed combustion method, where the burner flame directly heats the pot inside the pot ring, while a portion of the residual flame and hot airflow passes through the gap between the pot ring and the back of the pot to heat the pot outside the pot ring. This ensures that the pot is heated evenly and speeds up the cooking process.

[0008] In this embodiment of the invention, both the heat exchange flue and the pressurized water tank are made of round tubes. The intersection of the heat exchange flue and the pressurized water tank is a saddle line. Saddle line welding is a mature technology of modern robotic welding, and the heat exchange flue and the pressurized water tank can be easily automated. The heat exchange flue is a straight pipe, which makes it easy to automate the installation. The heat exchange flue has no joints inside the pressurized water tank, so there is no possibility of leakage.

[0009] The upper section of the heat exchange flue of this utility model is an annular wing plate of a pressurized water tank, and the lower section of the heat exchange flue is an internal heat exchanger of the pressurized water tank. The heat exchange flue is also an important component for furnace silencing and a flue gas exhaust channel. One component has four functions, with a novel design and powerful functionality.

[0010] The smoke collection box of this utility model is not only a smoke exhaust channel, but also an important component for furnace silencing, a heating wing plate for the pressurized water tank, and an important component for reheating the bottom of the pressurized water tank by utilizing hot airflow. One component has four functions, with a novel design and powerful functionality.

[0011] This invention can generate a large amount of hot water using waste heat while cooking or stir-frying. The water pressure at the hot water outlet is the same as the tap water pressure, and hot water can be piped to wherever it is needed, making it very convenient to use.

[0012] This invention produces very little noise during normal cooking and stir-frying.

[0013] The pressurized water tank of this invention is integrated with the stove body, which can save a lot of kitchen space.

[0014] This utility model has low manufacturing cost, long lifespan, high reliability, simple production process, and can be mass-produced industrially, thus having broad market prospects. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of a silent water tank and dual-burner oil / gas stove.

[0016] Figure 2 yes Figure 1 A cross-sectional view along line A-A.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] In the diagram: 1. Leg, 2. Lower frame, 3. Stove head, 4. Furnace support rod, 5. Furnace shell, 6. Refractory material, 7. Refractory furnace core, 8. Upper frame, 9. Stove surface, 10. Stove turret, 11. Pot ring, 12. Pot, 13. Smoke inlet, 14. Pot support block, 15. Backrest, 16. Smoke pipe, 17. Annular wing plate, 18. Upper weld, 19. Pressurized water tank, 20. Internal heating heat exchanger, 21. Smoke collection box, 22. Tap water inlet pipe, 23. Pressurized water tank support rod, 24. Safety valve, 25. Hot water outlet pipe, 26. Stove shell. Detailed Implementation

[0019] Figure 1 , Figure 2This paper describes the structural form of a silent water tank dual-burner stove. The silent water tank dual-burner stove consists of a support frame, a stove shell, a stove surface, a furnace, a burner head, a pressurized water tank, a heat exchange flue, a smoke collection box, and a flue pipe. The lower frame 2 and upper frame 8 are connected and fixed together by legs 1, and the legs 1, lower frame 2, and upper frame 8 together form the support frame. A stove turret 10 is mounted on the stove surface 9. The stove shell 26 is connected and fixed together with the stove surface 9, and the stove shell 26, stove surface 9, and support frame are installed and fixed together. A backrest 15 is installed and fixed on the upper rear part of the stove surface 9. The refractory furnace core 7 is made of inorganic refractory material or metal material. The refractory furnace core 7 has a smoke inlet hole 13. The refractory furnace core 7 is installed and fixed inside the furnace shell 5 by the refractory material 6. The lower end of the pot ring 11 is installed and fixed together with the upper end of the refractory furnace core 7. The lower end of the pot ring 11 is installed and fixed together with the upper end of the stove platform 10. The pot ring 11, stove platform 10, refractory furnace core 7, furnace shell 5, refractory material 6, and stove head 3 together form the furnace. One end of the furnace support rod 4 is installed and fixed together with the bottom frame 2, and the other end of the furnace support rod 4 is installed and fixed together with the furnace shell 5. The pot 12 is tightly attached to the front of the pot ring 11. There are one or more pot support blocks 14 behind the pot ring. The pot ring 11 and the pot support block 14 are integrally cast and formed. The pot support block 14 separates the pot 12 and the pot ring 11 by a gap. A pressurized water tank 19 is installed and fixed at the bottom of the furnace. A tap water inlet pipe 22 is installed at the bottom of the pressurized water tank 19, and a hot water outlet pipe 25 and a safety valve 24 are installed at the top of the pressurized water tank 19. One end of multiple pressurized water tank support rods 23 is fixed to the lower frame 2. Multiple pressure tank support rods 23 are fixed at one end to the pressure tank 19; the annular wing plate 17 and the internal heat exchanger 20 together form a heat exchange flue. The lower end of the flue inlet 13 is connected to the upper end of the heat exchange flue. The diameter of the heat exchange flue is smaller than the diameter of the pressure tank 19. The heat exchange flue passes vertically through the pressure tank 19. The heat exchange flue and the pressure tank 19 are welded together at the intersection. The upper part of the heat exchange flue is welded to the upper part of the pressure tank 19. This weld is called the upper weld 18. The part of the heat exchange flue above the upper weld 18 constitutes the annular wing plate 17 of the pressure tank 19; the lower end of the heat exchange flue is welded to the lower part of the pressure tank 19. This weld is called the lower weld; the upper part of the pressure tank... The section of the heat exchange flue from below the weld to above the weld of the lower part of the pressurized water tank constitutes the internal heat exchanger 20 of the pressurized water tank; the upward-opening part of the smoke collection box 21 is welded to the lower part of the pressurized water tank 19, and the smoke collection box 21 and the lower part of the pressurized water tank together form a closed space. The lower end of the heat exchange flue opens at one end of the closed space formed by the smoke collection box 21 and the lower part of the pressurized water tank 19, and the other end of the smoke collection box 21 is installed and fixed to one end of the flue 16. One end of the flue 16 is connected to the smoke collection box 21, and the other end of the flue 16 is connected to the atmosphere; the furnace is connected to the atmosphere through the space enclosed by the smoke inlet hole 13 on the refractory core, the annular wing plate 17, the internal heat exchanger 20, the smoke collection box 21, and the flue 16.To meet pressure requirements, both the heat exchange flue 19 and the pressurized water tank 18 in this embodiment are made of round pipes. The intersection of the heat exchange flue and the pressurized water tank is commonly referred to as a saddle line. Saddle line welding is a mature technology in modern robotic welding, and the heat exchange flue 19 and the pressurized water tank 18 can be easily automated. The heat exchange flue 19 is a straight pipe, making automated installation easy. The heat exchange flue 19 has no seams inside the pressurized water tank, eliminating the possibility of leakage. This invention belongs to the category of stoves with blowers, specifically gas stoves, oil stoves, or alcohol-burning stoves. The blower, burner head, and combustion control system are conventional technologies and are not listed here.

[0020] In practical use, water is filled into the pressurized water tank 19 through the tap water inlet pipe 22, and the silent water tank oil and gas dual-burner is ignited. The flame of the burner 3 directly heats the pot 12. Part of the residual flame and hot air flow heats the pot 12 above the pot ring 11 through the gap between the pot ring 11 and the back of the pot 12, completing the overall heating of the pot and enabling cooking. The other part of the residual flame and hot air flow downwards from the smoke inlet 13 and passes through the heat exchange smoke pipe above the upper weld 18, where the annular wing plate 17 is heated. The heat absorbed by the annular wing plate 17 is transferred to the heat exchange pipe through conduction. The water in the water tank heats the water in the pressurized water tank 19. When the residual flame and hot air flow pass through the internal heat exchanger 20 of the heat exchange flue, the internal heat exchanger 20 directly heats the water in the pressurized water tank 19. When this part of the hot air flow passes through the space enclosed by the smoke collection box and the lower part of the pressurized water tank, the hot air flow directly heats the bottom of the pressurized water tank 19 on one hand, and heats the smoke collection box 21 on the other hand. The heat absorbed by the smoke collection box 21 is transferred to the water in the pressurized water tank 19 by conduction, thus heating the water in the pressurized water tank 19. Afterwards, the waste gas flow is discharged into the atmosphere through the flue pipe 16. At the same time, the combustion noise in the furnace is attenuated when passing through the smoke inlet 13, the heat exchange flue, the smoke collection box 21, and the flue pipe 16. The structure and working principle of the left burner of this utility model have been described in detail above. The structure and working principle of the right burner are exactly the same as those of the left burner, and will not be repeated here.

Claims

1. A silent water tank dual-burner stove, comprising a support frame, a stove shell, a stove surface, a furnace, a burner head, a pressurized water tank, a heat exchange flue, a smoke collection box, and a flue pipe, characterized in that: A pressurized water tank is installed and fixed at the bottom of the furnace. The lower end of the flue gas inlet is connected to the upper end of the heat exchange flue. The diameter of the heat exchange flue is smaller than the diameter of the pressurized water tank. The heat exchange flue vertically passes through the pressurized water tank and is welded to the pressurized water tank at the intersection. The upper part of the heat exchange flue is welded to the upper part of the pressurized water tank at the intersection; this weld is called the upper weld. The part of the heat exchange flue above the upper weld forms the annular wing of the pressurized water tank. The lower end of the heat exchange flue is welded to the lower part of the pressurized water tank; this weld is called the lower weld. The section of the heat exchange flue from the upper weld to the lower weld... The hot flue pipe section constitutes the internal heat exchanger of the pressurized water tank; the upward-opening part of the smoke collection box is welded to the lower part of the pressurized water tank, and the smoke collection box and the lower part of the pressurized water tank together form a closed space; the lower end of the heat exchange smoke pipe opens at one end of the closed space formed by the smoke collection box and the lower part of the pressurized water tank, and the other end of the smoke collection box is installed and fixed to one end of the smoke pipe. One end of the smoke pipe is connected to the smoke collection box, and the other end of the smoke pipe is open to the atmosphere; the furnace is open to the atmosphere through the smoke inlet on the refractory core, the space enclosed by the annular wing plate, the internal heat exchanger, the smoke collection box, and the smoke pipe.

2. The silent water tank and dual-burner stove according to claim 1, characterized in that: There are one or more pot support blocks behind the pot ring. The pot ring and the pot support blocks are integrally cast and formed, and the pot support blocks separate the pot ring and the pot by a gap.

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