Novel automatic gas regulating mechanism for constant-temperature fuel gas water heater

Abstract

The invention discloses a novel automatic gas regulating mechanism for a constant-temperature fuel gas water heater. The novel automatic gas regulating mechanism comprises a gas distributing rod, a valve body, a valve element and a valve element rotary drive mechanism, wherein the valve body is communicated with a fuel gas channel of the gas distributing rod and equipped with a fuel gas inlet; a valve cavity hole with a cone-shaped hole structure is formed in the valve body; the valve element is a tapered circular table structure corresponding to the valve cavity hole. According to the novel automatic gas regulating mechanism disclosed by the invention, the valve element with the tapered circular table structure is matched with the tapered valve cavity hole, the valve element is pressed by elastic devices such as the spring, the valve element can be tightly fitted with the valve cavity hole, so that the gap between the valve element and the valve cavity hole can be neglected, the sealing performance of the valve body is guaranteed; gap gas leakage in the original design is almost absent, the one-way performance of the valve body is guaranteed very well, and the regulating precision of the valve element is relatively high and reliable.

Description

technical field [0001] The invention relates to a gas regulating mechanism for automatically regulating the gas volume of a constant temperature gas water heater. Background technique [0002] At present, the mainstream technology of automatic gas adjustment for domestic constant temperature gas water heaters includes gas proportional valve and stepping motor. There are defects on the surface, which affect the constant temperature effect. [0003] The characteristics of the constant temperature water heater with stepping motor gas adjustment mode: on the basis of the existing water-gas linkage valve structure, a stepping motor is used to drive the gas valve core, and the electric control system adjusts the gas valve core according to the change of the outlet water temperature, and adjusts the gas pressure through throttling. Consumption to achieve constant temperature. In fact, this kind of constant temperature machine is to simulate the manual temperature adjustment proce...

AI Technical Summary

Problems solved by technology

[0008] Also affected by the above matching clearance, the minimum temperature rise of the water heater is difficult to control, and only a solenoid valve can be used to close several fire exhaust gas channels, and a minimum temperature rise is artificially fixed, so there is a gap between the minimum temperature rise and the automatic temperature adjustment range

Images