Plug valve capable of assisting in replenishing flow

Abstract

The invention discloses a plug valve capable of assisting in replenishing flow. The plug valve comprises a valve seat, a valve core and an ejector rod. A groove is formed in the lower end of the ejector rod, the valve core is provided with an auxiliary small hole and a plurality of valve core holes, the valve seat is provided with an auxiliary gas intake passage, and the groove of the ejector rod,the auxiliary small hole and the auxiliary gas intake passage together form an auxiliary passage. The plug valve has at least the following advantages that by designing the gas auxiliary passage on the plug valve, and by setting and adjusting the stroke position, the temporary increase of the gas amount of firepower rings can be realized by driving a rotating shaft, the stable combustion of the transition section can be ensured, and the dangerous situation of tempering is effectively avoided; and at the same time, the gas flow of the firepower rings can be temporarily increased as needed, therefore the cooking firepower is more sufficient so as to meet the needs of instant large firepower of a user.

Description

technical field [0001] The invention relates to the technical field of household gas stoves, in particular to a plug valve that can assist in supplementing flow. Background technique [0002] With the increasing popularity of household gas stoves and the rapid development of smart cooking, the firepower adjustment of gas stoves has become the most concerned issue for users. At present, the commonly used plug valves on the market are non-linear in adjustment and have a short adjustment stroke, which is inconvenient for users to adjust. In response to the above requirements, linear adjustment plug valves, multi-stage fire adjustment plug valves, etc. have been developed in the industry, which can achieve linear adjustments from the maximum firepower to the minimum firepower, and a large stroke. The valve body of this type of plug valve can better meet the firepower adjustment needs of users. . However, there is a defect in the valve body of this type of structure, that is, s...

AI Technical Summary

Problems solved by technology

During the firepower adjustment process, when shifting from 4th gear to 5th gear, the gas flow rate of the outer ring increases from 0 to 1.1kW, and the burner cavity and fire cover corresponding to the outer ring are designed according to the maximum load (3.4kW). At this time, the flow rate of the outer ring is small, and from no gas to gas, the burner accumulates air, resulting in a thin mixture of gas, which is easy to cause the burner to backfire

And the products on the market generally remind users not to adjust the firepower in this area through instruction documents, warning signs, etc. to avoid backfire, but this method cannot fundamentally solve the problem

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