Energy gathering cover for stove and gas stove applying energy gathering cover for stove

Abstract

The invention relates to an energy gathering cover for a stove. The cover body is in the shape of a ring disc with a central hole. The energy gathering cover for the stove is characterized in that theinner side edge of the cover body is provided with at least two partition plates at intervals in the circumferential direction in a protruding downwards manner, and an opening for secondary air to enter the central hole is formed between every two adjacent partition plates; an adjustment ring capable of moving in the circumferential direction relative to the bottom of the cover body is arranged on the bottom of the cover body, and the bottom of the adjustment ring is provided with at least two radially convex outward outer convex portions; and each outer convex portion at least partially occludes the corresponding opening, and can be moved on the adjustment ring in the circumferential direction relative to the cover body under the action of external force, so that the position of the outer convex portion in the corresponding opening is changed, and then the effective cross-sectional area of the opening is changed. Compared with the prior art, the energy gathering cover for the stove has the advantages that the effect that the air supplementing amount of the secondary air can be adjusted according to actual use requirements is achieved, and the problem that smoke emission is largedue to the fact that the energy gathering cover lowered a smoke discharging port is overcome, and a combustor is in a stable and good combustion state.

Description

technical field [0001] The invention belongs to the technical field of gas stoves, and relates to an energy-collecting cover for stoves and a gas stove with the energy-collecting cover for stoves applied thereto. Background technique [0002] In the actual use of existing gas stoves, since the pot is placed on the pot support for heating, there is a certain space between the pot and the burner. A part escapes into the surrounding environment, causing energy waste; in order to solve the above problems, some heat collection and energy gathering have occurred in China in recent years, as disclosed in the Chinese patent CN203404823U "energy gathering ring for gas stove and gas stove with it". ", and as disclosed in the Chinese patent CN204042984U "a kind of energy-gathering gas stove", which also has an energy-gathering pot support, the above-mentioned energy-gathering ring structure can reduce the consumption of heat energy to a certain extent, Improve the thermal efficiency o...

AI Technical Summary

Problems solved by technology

[0002] In the actual use of existing gas stoves, since the pot is placed on the pot support for heating, there is a certain space between the pot and the burner. A part escapes into the surrounding environment, causing energy waste; in order to solve the above problems, some heat collection and energy gathering have occurred in China in recent years, as disclosed in the Chinese patent CN203404823U "energy gathering ring for gas stove and gas stove with it". ", and as disclosed in the Chinese patent CN204042984U "a kind of energy-gathering gas stove", which also has an energy-gathering pot support, the above-mentioned energy-gathering ring structure can reduce the consumption of heat energy to a certain extent, Improve the thermal efficiency of the burner, and at the same time separate the flue gas from the secondary air supply channel. For this reason, the above-mentioned energy gathering rings generally have a secondary air supply channel for supplementing the secondary air, such as Chinese patent ZL201320460471. 1 The "Energy Gathering Ring for Gas Cooker and Gas Cooker with It" disclosed includes a first reflective ring and a second reflective ring that effectively increase the reflective energy gathering area of ​​the entire energy-gathering ring. There is an air replenishment channel between the upper end of the reflector and the lower end of the second reflective ring. By setting the air replenishment channel, the problem of insufficient air replenishment during gas combustion can be solved. In order to reduce CO emissions, the secondary air replenishment should be as sufficient as possible. And it is often excess, and the excess secondary air supplement will take away a large part of the heat energy generated by gas combustion; in addition to achieving the energy-gathering effect by increasing the energy-gathering cover, it can also reduce the way of the exhaust port (exhaust The height of the smoke outlet refers to the distance from the highest plane on the edge of the energy-gathering hood to the bottom of the pot, that is, the effective height at which the smoke can be discharged). There is a lot of smoke and heat. If the height of the smoke exhaust port is reduced to 6mm, the smoke cannot be discharged smoothly, and the exhausted smoke will be correspondingly reduced, causing the smoke to gather at the bottom of the pot and inside the energy-concentrating hood. space, so that the secondary air supplementary channel increases the resistance of the secondary air, the supplementary air cannot be supplemented, the combustion is incomplete, the thermal efficiency decreases, and toxic and harmful gases such as carbon monoxide will be produced at the same time; but the secondary air supplementary channel is too large, the secondary air The amount of entrainment is large, and the heat taken away by the exhaust smoke increases, resulting in low thermal efficiency; the secondary air supply channel is too small, and the secondary air supply is insufficient, which will inevitably lead to incomplete gas, and the smoke emission exceeds the standard

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