A gas distribution device and a gas water heater using the device

Abstract

The invention relates to a gas distribution device and a gas water heater using the device, wherein the gas distribution device includes a casing, at least two nozzles and a blocking mechanism, wherein the blocking mechanism includes a rotating shaft, a power mechanism for driving the rotating shaft, at least two Each block and connecting frame, connecting assembly and driving mechanism, each group of connecting assemblies is connected with one said blocking member, and each group of connecting assemblies can be connected with the connecting frame in a tripping manner, and each group of connecting assemblies acts on the elastic member The bottom has a tendency to move toward the nozzle; the driving mechanism drives different positions or different numbers of connecting components to disengage from the connecting frame with the rotation of the rotating shaft to move toward the nozzle or drive the connecting component to move away from the nozzle to connect with the connecting frame. The gas distribution device of the present invention enables multiple nozzles in different positions and different numbers to be opened or closed at one time without opening or closing one by one, so that the adjustment of the gas flow is convenient, quick and flexible.

Description

Technical field [0001] The present invention belongs to the technical field of fluid heater having a thermal generating device, and more particularly to a gas distribution device and a gas water heater to which the device is applied. Background [0002] Gas water heaters or wall furnaces have a defect in use, that is, when the gas is used, even if the gas is adjusted to the minimum gas supply, the water temperature is too hot, and the water temperature is not hot enough in the winter. In order to solve the aforementioned problems, many producers use a gas distributor (also known as gas segmers or forward tube), i.e., using the control valve to control different nozzles on the gas pipeline, to achieve the size of the water heater combustion, improve the water heater Adaptation range. [0003] As shown in the "one gas water heater" of the patent No. ZL201721254505.6 (Nonetarin CN207196901U), the rogue is composed of the first fire group, the second fire group and the third fire gro...

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Problems solved by technology

[0004] The defects of the above-mentioned patents are: the number of stages that can be adjusted for combustion firepower is small (that is, the firepower adjustment level is small), and the adjustment gradient is too large, the control of the gas flow is not precise enough, and it is still easy to cause the minimum water temperature to be too high or the maximum water temperature to be too low phenomenon, it is difficult to meet the problems of regional differences, seasonal differences, and individual differences of people, which affects the comfort of users; in addition, the solenoid valve is large in size and high in cost. Considering the internal space and cost of the water heater, the existing gas flow distribution The device also needs to be further improved

[0007] However, the defects in this patent are: 1. Open the nozzles sequentially from right to left through the translation of the piston, that is, the nozzles can only be opened or closed one by one, but not multiple at one time, so the adjustment of the gas flow is not flexible enough 2. Because the number of different nozzles can be opened through the translation of a piston, in order to prevent gas from entering the nozzle on the left side of the piston from the piston or sealing ring, the outer wall of the piston or sealing ring needs to be between the inner wall of the gas main pipe There is no gap, and the adjustment of the gas flow can only be realized by the movement of the one piston. The piston or sealing ring is easy to wear, resulting in poor sealing performance; 3. In order to make the piston or sealing ring move smoothly, usually between the piston and the sealing ring Apply lubricating grease on it, but the grease is easy to block the nozzle; 4. If the piston is worn and loses its sealing effect, the gas flow regulation of the whole device will fail

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