Automatic water injection system and drainage system of gas heating water heater

Abstract

The invention belongs to the technical field of heating equipment, and provides an automatic water injection system and drainage system of a gas heating water heater and the gas heating water heater with the same. The automatic water injection system comprises a main control board, an external water pressure sensor which is used for detecting the water pressure of a water inlet pipe of the heatingwater heater and located at the front end of an inlet valve, a check valve which is used for controlling the water flow only to flow into a unit but not flow out of the unit and located at the frontend of the inlet valve and an internal water pressure sensor which is used for detecting the internal water pressure of the heating water heater and located at the rear end of the inlet valve. The automatic drainage system comprises a main control board, a drain valve which is used for pressure relief of the unit and drainage of the heating water heater and located at the front end of a water inlet of a water pump, an internal water pressure sensor and a rechargeable direct-current power source. According to the automatic water injection system and drainage system of the gas heating water heater and the gas heating water heater with the same, an automatic water injection method is adopted to replace manual water injection, and the unmanned intelligent operation of the unit water injectionoperation and timely water injection are realized; and a function of automatic drainage when a fault occurs is increased, and the potential safety hazards of unit freezing due to water freezing in theunit are eliminated.

Description

technical field [0001] The invention belongs to the technical field of heating equipment, and in particular relates to an automatic water injection and automatic drainage system for a gas heating water heater. Background technique [0002] Cityscape gas heating wall-mounted water heater heating is the development trend of rural heating in winter. However, at present, the domestic gas heating wall-mounted water heater industry generally uses the manual water injection method to inject water into the heating system. In the northern rural areas, the rural tap water system is complex, the water pressure fluctuates greatly, and water is often cut off. When using a wall-hung boiler, if the user does not close the water inlet valve in time after the water injection operation, when the water supply system fails, the water in the entire heating system will flow back to the water supply system, causing the unit to shut down and unable to operate normally. Moreover, when the water su...

AI Technical Summary

Problems solved by technology

The device is used to solve technical problems such as frequent and cumbersome water injection operations of gas heating furnaces, forgetting to inject water will cause the unit to stop, and when the tap water system stops water, the water flow in the heating furnace will flow backwards, etc., and realize the unmanned intelligent operation of the water injection operation of the unit and timely water injection , which perfectly solves the limitation caused by the water pressure on the abnormal operation of the unit

The device is also used to solve the technical problem that the unit is damaged by freezing due to the large amount of water inside the unit when the heating furnace unit fails to stop, and eliminates the safety hazard of the unit being damaged by freezing due to the freezing of water in the unit

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