Preheating type efficient gas stove

Abstract

The invention discloses a preheating type efficient gas stove which comprises a combustor, a stove frame, an air introduction ring, a first preheating pipeline, a second preheating pipeline, an ejector and a fan. The Swiss roll shape is combined with the gas stove, sufficient premixing of gas and primary air can be achieved, meanwhile, heat generated during combustion of part of fuel is absorbed through the double-vortex channel for sufficient preheating, the fuel is sufficiently combusted, and emission of pollution gas is reduced; compared with other preheating modes, the double-vortex pipeline saves more space, and the preheating effect is more obvious. Fuel combustion is more stable, the content of carbon monoxide is lower, and the combustion efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of energy saving for civil use and food processing, and in particular to a preheating gas stove. Background Art

[0002] In recent decades, my country's household electrical equipment has developed rapidly. Gas stoves use natural gas or liquefied gas as fuel. They are powerful, easy to use, low cost, fast heating speed of burning hot flue gas and low pollution emissions. They have become a common cooking device in modern residents' lives. However, with people's continuous pursuit of high-quality living environment and increasingly severe energy shortage situation. People realize that a large amount of pollutants such as CO are produced during the combustion process of gas stoves. The pollution emissions generated during the use of gas stoves not only cause respiratory hazards to cooks. Moreover, in severe cold and hot seasons, the indoor space is generally more airtight. Turning on the gas stove for a long time will cause pollutants such as CO to spread indoors, which may cause indoor environmental pollution and gas poisoning. In addition, the thermal utilization efficiency of common gas stoves is only about 80%, and about 20% of the waste heat is directly discharged into the atmosphere through radiation and convection.

[0003] If the existing gas stove can be improved and part of the waste heat can be recovered, it can improve the combustion performance and reduce pollution emissions, thereby saving fuel and improving the economic efficiency of the gas stove. Summary of the invention

[0004] Based on this, the technical problem to be solved by the present invention is to provide a preheating gas stove in view of the defects involved in the background technology.

[0005] The above purpose is achieved through the following technical solutions: A preheating high-efficiency gas stove comprises a burner, a stove frame, an air introduction ring, a first preheating pipe, a second preheating pipe, an ejector, and a fan; The burner comprises a combustion ring, a combustion-supporting ring and an igniter; The combustion ring and the combustion-supporting ring are both annular pipes, with a plurality of air outlet holes evenly arranged on the upper side thereof, and each having an air inlet hole; the outer diameter of the combustion ring is smaller than the inner diameter of the combustion-supporting ring, and the combustion ring and the combustion-supporting ring are coaxially arranged at the center of the furnace rack; the furnace rack is used to hold the pot; The air introduction ring is an annular pipe, and a plurality of through holes for introducing air are evenly arranged on the outer side thereof, and an air outlet is provided; the air introduction ring is arranged on the furnace frame; One end of the first preheating pipe is tightly connected to the air inlet of the combustion ring, and the other end is tightly connected to the outlet of the ejector; the inlet of the ejector is connected to external gas, and is used to premix the gas and air and introduce them into the combustion ring through the first preheating pipe for combustion; the igniter is used to ignite the premixed gas flowing out of the air outlet of the combustion ring; One end of the second preheating pipe is tightly connected to the air inlet of the combustion-supporting ring, and the other end is tightly connected to the air outlet of the air introduction ring; the fan is arranged at the connection between the second preheating pipe and the air introduction ring, and is used to pump air from the air introduction ring to the combustion-supporting ring through the second preheating pipe; The first preheating pipe and the second preheating pipe form a double helix structure, surrounding the combustion ring and the combustion-supporting ring. The first preheating pipe is used to preheat the premixed gas ejected from the ejector after the combustion ring is ignited; the second preheating pipe is used to preheat the air pumped in by the fan after the combustion ring is ignited.

[0006] As a further optimization solution of the preheating high-efficiency gas stove of the present invention, the combustion ring, the combustion-supporting ring, the air introduction ring, the first preheating pipe and the second preheating pipe are all made of stainless steel.

[0007] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects: The present invention combines the Swiss roll shape with the gas stove to achieve sufficient premixing of the gas and primary air. At the same time, the double vortex channel absorbs a portion of the heat during fuel combustion for sufficient preheating, so that the fuel can be fully burned and the emission of polluting gases can be reduced. Among them, compared with other preheating methods, the double vortex pipeline saves more space and has a more obvious preheating effect; the fuel combustion is more stable, the carbon monoxide content is lower, and the combustion efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a cross-sectional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the top structure of the present invention.

[0009] In the figure, 1-combustion ring, 2-combustion-supporting ring, 3-igniter, 4-first preheating pipe, 5-second preheating pipe, 6-ejector, 7-air introduction ring, 8-furnace frame, and 9-fan. DETAILED DESCRIPTION

[0010] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings: The present invention can be implemented in many different forms and should not be considered to be limited to the embodiments described herein. On the contrary, these embodiments are provided to make this disclosure thorough and complete, and will fully express the scope of the present invention to those skilled in the art. In the accompanying drawings, components are enlarged for clarity.

[0011] It should be understood that although the terms first, second, third, etc. can be used here to describe various elements, components and / or parts, these elements, components and / or parts are not limited by these terms. These terms are only used to distinguish elements, components and / or parts from each other. Therefore, the first element, component and / or part discussed below can become the second element, component or part without departing from the teaching of the present invention.

[0012] like Figure 1 , Figure 2 As shown, the present invention discloses a preheating high-efficiency gas stove, which includes a burner, a stove frame, an air introduction ring, a first preheating pipe, a second preheating pipe, an ejector, and a fan.

[0013] The burner comprises a combustion ring, a combustion-supporting ring and an igniter; The combustion ring and the combustion-supporting ring are both annular pipes, with a plurality of air outlet holes evenly arranged on the upper side thereof, and each having an air inlet hole; the outer diameter of the combustion ring is smaller than the inner diameter of the combustion-supporting ring, and the combustion ring and the combustion-supporting ring are coaxially arranged at the center of the furnace rack; the furnace rack is used to hold the pot; The air introduction ring is an annular pipe, and a plurality of through holes for introducing air are evenly arranged on the outer side thereof, and an air outlet is provided; the air introduction ring is arranged on the furnace frame; One end of the first preheating pipe is tightly connected to the air inlet of the combustion ring, and the other end is tightly connected to the outlet of the ejector; the inlet of the ejector is connected to external gas, and is used to premix the gas and air and introduce them into the combustion ring through the first preheating pipe for combustion; the igniter is used to ignite the premixed gas flowing out of the air outlet of the combustion ring; One end of the second preheating pipe is tightly connected to the air inlet of the combustion-supporting ring, and the other end is tightly connected to the air outlet of the air introduction ring; the fan is arranged at the connection between the second preheating pipe and the air introduction ring, and is used to pump air from the air introduction ring to the combustion-supporting ring through the second preheating pipe; The first preheating pipe and the second preheating pipe form a double helix structure, surrounding the combustion ring and the combustion-supporting ring. The first preheating pipe is used to preheat the premixed gas ejected from the ejector after the combustion ring is ignited; the second preheating pipe is used to preheat the air pumped in by the fan after the combustion ring is ignited.

[0014] The combustion ring, combustion-supporting ring, air introduction ring, first preheating pipeline and second preheating pipeline are preferably made of stainless steel.

[0015] The height distance between the furnace frame and the burner is adjustable, and the distance can be adjusted according to different bottom structures of pots and the required firepower, thereby enhancing convection heat exchange and improving the thermal utilization efficiency of fuel.

[0016] During operation, the first preheating pipe fully premixes the fuel injected by the ejector and the primary air, and then discharges them from the air outlet of the combustion ring and mixes with the secondary air discharged from the combustion-supporting ring and ignites, generating low-density high-temperature flue gas. While the high-temperature flue gas heats the cookware, part of the heat is absorbed by the first preheating pipe and the second preheating pipe located below it, thereby preheating the secondary air and the premixed gas. Since the premixed gas and secondary air flow through the double helix pipe heated by the high-temperature flue gas, the initial temperature of the premixed gas at the combustion ring outlet and the secondary air at the combustion-supporting ring outlet is higher, making it easier to ignite, and the combustion is more complete, with lower pollution emissions.

[0017] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0018] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A preheating high-efficiency gas stove, characterized in that: The invention comprises a burner, a furnace frame, an air introduction ring, a first preheating pipe, a second preheating pipe, an ejector, and a fan; The burner comprises a combustion ring, a combustion-supporting ring and an igniter; The combustion ring and the combustion-supporting ring are both annular pipes, with a plurality of air outlet holes evenly arranged on the upper side thereof, and each having an air inlet hole; the outer diameter of the combustion ring is smaller than the inner diameter of the combustion-supporting ring, and the combustion ring and the combustion-supporting ring are coaxially arranged at the center of the furnace rack; the furnace rack is used to hold the pot; The air introduction ring is an annular pipe, and a plurality of through holes for introducing air are evenly arranged on the outer side thereof, and an air outlet is provided; the air introduction ring is arranged on the furnace frame; One end of the first preheating pipe is tightly connected to the air inlet of the combustion ring, and the other end is tightly connected to the outlet of the ejector; the inlet of the ejector is connected to external gas, and is used to premix the gas and air and introduce them into the combustion ring through the first preheating pipe for combustion; the igniter is used to ignite the premixed gas flowing out of the air outlet of the combustion ring; One end of the second preheating pipe is tightly connected to the air inlet of the combustion-supporting ring, and the other end is tightly connected to the air outlet of the air introduction ring; the fan is arranged at the connection between the second preheating pipe and the air introduction ring, and is used to pump air from the air introduction ring to the combustion-supporting ring through the second preheating pipe; The first preheating pipe and the second preheating pipe form a double helix structure, surrounding the combustion ring and the combustion-supporting ring. The first preheating pipe is used to preheat the premixed gas ejected from the ejector after the combustion ring is ignited; the second preheating pipe is used to preheat the air pumped in by the fan after the combustion ring is ignited.

2. The preheating high-efficiency gas stove according to claim 1, characterized in that: The combustion ring, the combustion-supporting ring, the air introduction ring, the first preheating pipeline and the second preheating pipeline are all made of stainless steel.

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