High-efficiency energy-saving cooking range

Abstract

The utility model discloses a kind of high-efficiency energy-saving type catering furnace, including gas stove body, and gas mixing container is equipped in its bottom accommodating cavity.Gas inlet pipe and air inlet pipe are communicated in container side wall, internal integrated stirring mixing assembly and flow resistance structure, and top gas outlet pipe connects burner fire cover assembly.In stirring mixing assembly, airflow driving mechanism is connected with gas inlet pipe, and mixed part is rotated using gas flow kinetic energy.Dragging flow resistance structure gas flow path, cooperate stirring mixing assembly, realize the efficient premixing of gas and air.In the use scene of frequently switching gas stove, the design can ensure that mixed gas ratio is ideal when igniting each time, greatly improve mixing uniformity, promote gas complete combustion, reduce carbon monoxide and other harmful gas emissions, compared with traditional stove, reduce gas consumption, with energy-saving and environmental protection advantage.

Description

Technical Field

[0001] This utility model relates to the field of catering kitchen equipment, specifically to a high-efficiency and energy-saving catering stove. Background Technology

[0002] In the catering industry, gas stoves need to be frequently turned on and off for cooking. Each time they are started, the gas and air cannot mix fully in a short time, resulting in incomplete combustion of some gas and energy waste. At the same time, the harmful gases such as carbon monoxide produced by incomplete combustion not only pollute the environment but also pose safety hazards. Existing catering gas stoves lack an effective premixing mechanism, making it difficult to solve the problem of uneven mixing caused by frequent start-stop operations.

[0003] How to invent a highly efficient and energy-saving catering stove to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-efficiency and energy-saving catering stove, which aims to improve the existing stoves that do not have an efficient mixing structure. Under frequent start-stop use, the gas and air cannot be fully mixed in a short time, which not only leads to incomplete combustion of gas and energy waste, but also produces harmful gases, causing environmental pollution and safety hazards.

[0005] This utility model is implemented as follows: A high-efficiency and energy-saving catering stove includes a gas stove body. The bottom of the gas stove body has a receiving cavity, and a gas mixing container is arranged inside the receiving cavity. The gas mixing container is detachably connected to the gas stove body through several mounting parts. An air inlet pipe and an air intake pipe are respectively connected to the periphery of the gas mixing container. A stirring and mixing assembly is arranged inside the gas mixing container. The stirring and mixing assembly includes a mixing part rotatably installed on the inner wall of the bottom of the gas mixing container and an airflow driving mechanism connected to the air inlet pipe. A flow obstruction structure is also arranged inside the gas mixing container. An air outlet pipe is connected to the top surface of the gas mixing container and is connected to the burner cap assembly on the top of the gas stove body.

[0006] In a preferred embodiment of this utility model, a gas one-way valve is connected and installed on both the air inlet pipe and the air intake pipe.

[0007] In a preferred embodiment of this utility model, the airflow drive mechanism includes a gas guide pipe. One end of the gas guide pipe is fixedly installed on the inner wall of a gas mixing container and connected to a connecting pipe at the end. The connecting pipe is inserted into an air inlet pipe. The other end of the gas guide pipe extends downward perpendicularly to the bottom inner wall of the air inlet pipe and is fixedly installed with an installation ring between the inner walls around its circumference. A drive shaft is rotatably connected to the installation ring. An impeller is fixedly sleeved at the top of the drive shaft, and a drive gear is fixedly sleeved at the bottom of the drive shaft. The drive gear meshes with a driven gear on one side, and the driven gear is rotatably connected to the bottom inner wall of the air inlet pipe through a rotating component.

[0008] In a preferred embodiment of this utility model, the mixing section includes a mixing rod, the bottom end of which is fixedly connected to the upper surface of the driven gear. A plurality of uniformly distributed mixing blades are integrally arranged on the outer wall of the lower end of the mixing rod, and each mixing blade is perpendicular to the upper surface of the driven gear. A plurality of turbulence plates are integrally arranged on the inner wall of the gas mixing container.

[0009] In a preferred embodiment of this utility model, the flow-blocking structure includes an inverted conical baffle. The inverted conical baffle has openings at both its upper and lower ends, with the upper opening having a larger diameter than the lower opening. The mixing rod is coaxially arranged with the inverted conical baffle and extends into its interior. The outer perimeter of the top edge of the inverted conical baffle is fixedly connected to the inner wall of the air inlet pipe, with the connection point higher than the point where the air inlet pipe and the gas mixing container communicate. A baffle plate is coaxially and parallelly arranged above the inverted conical baffle. The diameter of the baffle plate is larger than the top opening of the inverted conical baffle but smaller than the inner diameter of the gas mixing container. The baffle plate is fixedly connected to the top surface of the inverted conical baffle via several evenly distributed annular connecting columns.

[0010] In a preferred embodiment of this utility model, a bolt pusher plate is integrally provided on the outer periphery of the mixing rod inside the inverted conical baffle.

[0011] The beneficial effects of this utility model are as follows: This utility model, through the above design, provides a highly efficient and energy-saving catering stove. During use, by incorporating an airflow-driven stirring and mixing component and a multi-stage flow-blocking structure, it achieves efficient pre-mixing of gas and air. In scenarios involving frequent switching of the gas stove, it ensures that the mixed gas reaches the ideal ratio each time it is ignited, increasing the uniformity of gas mixing and thus ensuring complete combustion of the gas. This reduces the production of harmful gases and also relatively solves the problem of gas energy consumption. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic perspective view of the overall structure provided by the embodiment of this utility model;

[0014] Figure 2 A schematic perspective view of the overall cross-sectional separation structure provided for an embodiment of this utility model;

[0015] Figure 3 A schematic perspective view of the overall cross-sectional structure of the gas mixing container provided for an embodiment of this utility model;

[0016] Figure 4 A three-dimensional schematic cross-sectional view of the gas mixing container provided for an embodiment of this utility model;

[0017] Figure 5 A three-dimensional schematic cross-sectional view of the gas guide pipe provided for an embodiment of this utility model.

[0018] In the diagram: 1-Gas stove body; 2-Gas mixing container; 3-Burner cap assembly; 101-Receiving cavity; 102-Mounting component; 201-Inlet pipe; 202-Air inlet pipe; 203-Gas check valve; 204-Outlet pipe; 205-Gas guide pipe; 206-Connecting pipe; 207-Mounting ring; 208-Drive shaft; 209-Impeller; 210-Drive gear; 211-Driven gear; 212-Mixing rod; 213-Mixing blade; 214-Turbulence plate; 215-Bolt push plate; 216-Inverted conical baffle; 217-Baffle plate; 218-Connecting column. Detailed Implementation

[0019] 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 the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1 to 5This utility model provides a technical solution: a high-efficiency and energy-saving catering stove, including a gas stove body 1, a receiving cavity 101 at the bottom of the gas stove body 1, a gas mixing container 2 in the receiving cavity 101, the gas mixing container 2 being detachably connected to the gas stove body 1 by several mounting parts 102, an air inlet pipe 201 and an air inlet pipe 202 respectively connected to the periphery of the gas mixing container 2, a stirring and mixing assembly inside the gas mixing container 2, the stirring and mixing assembly including a mixing part rotatably installed on the inner wall of the bottom of the gas mixing container 2 and an airflow driving mechanism connected to the air inlet pipe 201, a flow obstruction structure inside the gas mixing container 2, and an exhaust pipe 204 connected to the top surface of the gas mixing container 2, the exhaust pipe 204 being connected to the burner cap assembly 3 at the top of the gas stove body 1.

[0021] Please see Figure 2 and Figure 3 Both the air inlet pipe 201 and the air inlet pipe 202 are connected to a gas check valve 203.

[0022] Both the air inlet pipe 201 and the air inlet pipe 202 are equipped with gas one-way valves 203 (such as spring-loaded one-way valves), which only allow gas to flow into the mixing container. This prevents the high-pressure gas in the mixing container 2 from flowing back into the air inlet pipe 202 and causing a risk of backfire. It ensures unidirectional flow of air and gas, maintaining the accuracy of the mixing ratio.

[0023] Please see Figures 3 to 5 The airflow drive mechanism includes a gas guide pipe 205. One end of the gas guide pipe 205 is fixedly installed on the inner wall of one side of the gas mixing container 2 and is connected to a connecting pipe 206. The connecting pipe 206 is inserted into the air intake pipe 201. The other end of the gas guide pipe 205 extends downward perpendicularly to the bottom inner wall of the air intake pipe 201 and is fixedly installed with an installation ring 207 between the inner walls around its circumference. A drive shaft 208 is rotatably connected in the installation ring 207. An impeller 209 is fixedly sleeved at the top of the drive shaft 208 and a drive gear 210 is fixedly sleeved at the bottom of the drive shaft 208. The drive gear 210 is meshed with a driven gear 211 on one side. The driven gear 211 is rotatably connected to the bottom inner wall of the air intake pipe 201 through a rotating component.

[0024] One end of the gas guide pipe 205 is inserted into the intake pipe 201 via a connecting pipe 206, and the other end extends downwards and has an internal mounting ring 207 to support the rotation of the drive shaft 208. The mounting ring 207 is coaxially arranged with the bottom end of the gas guide pipe 205 and is fixedly connected to the inner wall of the bottom circumference of the gas guide pipe 205 through several connectors to ensure the stability of the installation support. The impeller 209 is fixed to the top of the drive shaft 208. When the gas flows through at high speed, it impacts the blades and generates torque. The drive gear 210 at the bottom of the drive shaft 208 meshes with the driven gear 211 to transmit the rotational speed to the mixing rod 212. The impeller 209, drive shaft 208, and gear set are made of high-strength engineering plastics to reduce weight and reduce kinetic energy loss. The inner diameter of the gas guide pipe 205 is smaller than that of the intake pipe 201, which utilizes the Venturi effect to increase the gas flow velocity and enhance the driving force. It fully utilizes the kinetic energy of the gas flow, with no additional energy consumption, and is suitable for frequent start-stop scenarios.

[0025] Furthermore, the mixing section includes a mixing rod 212, the bottom end of which is fixedly connected to the upper surface of the driven gear 211. Several mixing blades 213 are integrally arranged in a ring on the outer wall of the lower end of the mixing rod 212. Each mixing blade 213 is perpendicular to the upper surface of the driven gear 211. Several turbulence plates 214 are integrally arranged on the inner wall of the gas mixing container 2.

[0026] The bottom end of the mixing rod 212 is fixed to the driven gear 211, and its rotation drives the mixing blades 213 to agitate the gas. Turbulence plates 214 are fixed to the inner wall of the container, arranged in a ring (e.g., 6-8 plates). The mixing blades 213 are inclined at a 15°-20° angle to the radial direction, pushing the gas to generate tangential flow and forming vortices. The turbulence plates 214 are serrated or arc-shaped, forcing the airflow to change direction and generating high-frequency turbulence. The combined effect of mechanical stirring and turbulence improves the mixing uniformity and also increases the residence time in the container, further enhancing the mixing degree.

[0027] Furthermore, the flow obstruction structure includes an inverted conical baffle 216, which has openings at both the top and bottom, with the upper opening having a larger diameter than the lower opening. A mixing rod 212 is coaxially arranged with the inverted conical baffle 216 and extends into the interior of the inverted conical baffle 216. The outer wall of the top perimeter of the inverted conical baffle 216 is fixedly connected to the inner wall of the air inlet pipe 201, and the connection point is higher than the connection point between the air inlet pipe 201 and the air inlet pipe 202 and the gas mixing container 2. A baffle plate 217 is coaxially and parallelly arranged above the inverted conical baffle 216. The diameter of the baffle plate 217 is larger than the top opening of the inverted conical baffle 216 and smaller than the inner diameter of the gas mixing container 2. The baffle plate 217 is fixedly connected to the top end face of the inverted conical baffle 216 through several annularly evenly distributed connecting columns 218.

[0028] The inverted conical baffle 216 has openings that are wider at the top and narrower at the bottom. Its top is fixed to the inner wall of the mixing container, higher than the interfaces of the inlet pipe 201 and the air inlet pipe 202, forcing the gas to first accumulate at the bottom before flowing upwards. The baffle plate 217 has a diameter larger than the opening at the top of the inverted cone and is fixed to the baffle via a connecting post 218, forming an annular gap. The gap between the baffle plate 217 and the inner wall of the mixing container is 5-8 mm, controlling the gas flow rate to avoid excessive pressure drop. This further increases the gas flow path length and mixing time. Simultaneously, the gas flow is blocked by the baffle plate 217, causing it to overflow into the surrounding gaps, completing a secondary mixing process.

[0029] Furthermore, a bolt pusher plate 215 is integrally provided on the outer periphery of the mixing rod 212 located inside the inverted conical deflector 216.

[0030] The bolt-driven plate 215, shaped like a helical blade, is fixed to the section of the mixing rod 212 located within the inverted conical baffle 216, at a 45° angle to the rod axis. Within the narrow conical space, the helical blades propel the gas upwards while generating radial shear force, breaking up large-scale gas clouds. Simultaneously, the gas spirals upwards axially, impacting the bottom surface of the baffle and then diffusing outwards. This spiral motion increases the residence time of the gas in the inverted conical region, ensuring thorough mixing.

[0031] Working principle: Gas and air enter the gas mixing container 2 through the gas one-way valves 203 on the inlet pipe 201 and air inlet pipe 202, respectively. The gas drives the impeller 209 to rotate through the gas guide pipe 205, which in turn drives the drive gear 210 and driven gear 211 to mesh via the drive shaft 208, causing the mixing rod 212 and its mixing blades 213 to rotate, driving the gas to flow radially. At the same time, the gas is blocked by the inverted conical baffle 216 and first gathers at the bottom of the container, forming turbulence through the turbulence plate 214, enhancing the initial mixing effect. The mixed gas enters the interior of the inverted conical baffle 216 through the bottom opening. The bolt pusher plate 215 at the top of the mixing rod 212 pushes the airflow upward to impact the baffle 217, further extending the gas residence time and strengthening the mixing. Finally, the uniformly mixed gas flows out from the gap formed by the baffle 217 and the connecting column 218, and is transported to the burner cap assembly 3 through the gas outlet pipe 204 for complete combustion, effectively avoiding the problem of incomplete gas combustion caused by frequent switching of the gas stove, and achieving high efficiency and energy saving.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency and energy-saving catering stove, characterized in that, The device includes a gas stove body with a receiving cavity at its bottom. A gas mixing container is disposed within the receiving cavity. The gas mixing container is detachably connected to the gas stove body via several mounting components. An air inlet pipe and an air intake pipe are respectively connected to the periphery of the gas mixing container. A stirring and mixing assembly is disposed inside the gas mixing container. The stirring and mixing assembly includes a mixing part rotatably mounted on the inner wall of the bottom of the gas mixing container and an airflow driving mechanism connected to the air inlet pipe. A flow obstruction structure is also disposed inside the gas mixing container. An exhaust pipe is connected to the top surface of the gas mixing container and is connected to the burner cap assembly on the top of the gas stove body.

2. The high-efficiency energy-saving catering stove as described in claim 1, characterized in that: Both the air inlet pipe and the air intake pipe are connected to and equipped with one-way gas valves.

3. The high-efficiency energy-saving catering stove as described in claim 1, characterized in that: The airflow drive mechanism includes a gas guide pipe. One end of the gas guide pipe is fixedly installed on the inner wall of one side of the gas mixing container and is connected to a connecting pipe. The connecting pipe is inserted into the air intake pipe. The other end of the gas guide pipe extends downward perpendicular to the bottom inner wall of the air intake pipe and is fixedly installed with an installation ring between the inner walls around its circumference. A drive shaft is rotatably connected to the installation ring. An impeller is fixedly sleeved at the top of the drive shaft and a drive gear is fixedly sleeved at the bottom of the drive shaft. The drive gear meshes with a driven gear on one side. The driven gear is rotatably connected to the bottom inner wall of the air intake pipe through a rotating component.

4. The high-efficiency energy-saving catering stove as described in claim 1, characterized in that: The mixing section includes a mixing rod, the bottom end of which is fixedly connected to the upper surface of the driven gear. Several mixing blades are integrally arranged in a ring on the outer wall of the lower end of the mixing rod, and each mixing blade is perpendicular to the upper surface of the driven gear. Several turbulence plates are integrally arranged on the inner wall of the gas mixing container.

5. The high-efficiency energy-saving catering stove as described in claim 4, characterized in that: The flow-blocking structure includes an inverted conical baffle, which has openings at both its upper and lower ends, with the upper opening having a larger diameter than the lower opening. The mixing rod is coaxially arranged with the inverted conical baffle and extends into its interior. The outer perimeter of the top edge of the inverted conical baffle is fixedly connected to the inner wall of the air inlet pipe, with the connection point higher than the connection point between the air inlet pipe and the gas mixing container. A baffle plate is coaxially and parallelly arranged above the inverted conical baffle, with a diameter larger than the top opening of the inverted conical baffle and smaller than the inner diameter of the gas mixing container. The baffle plate is fixedly connected to the top end face of the inverted conical baffle via several evenly distributed annular connecting columns.

6. The high-efficiency energy-saving catering stove as described in claim 5, characterized in that: The mixing rod is integrally provided with a bolted push plate on the outer wall of the perimeter inside the inverted conical deflector.

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