Pressure boost gas water heater and control method

Abstract

The invention discloses a pressure boost gas water heater and a control method. The pressure boost gas water heater comprises a burning cavity and a gas inlet pipeline. The gas inlet pipeline is connected with the burning cavity, and gas enters the burning cavity to burn. The pressure boost gas water heater further comprises a turbo-charging device which is disposed on the gas inlet pipeline; a waste gas pipeline is disposed between the burning cavity and the turbo-charging device; and waste gas in the burning cavity enters the turbo-charging device through the waste gas pipeline and drives the turbo-charging device to run, and pressure boost is performed on the gas. According to the pressure boost gas water heater, the turbo-charging device is driven by the waste gas, pressure boost is performed on the gas when the gas pressure is low, the gas inlet pressure and stability can be guaranteed, thus the effect that the optimum burning condition is obtained is guaranteed, the outlet watertemperature and stability are guaranteed, and the washing and bathing experience of a user is greatly improved.

Description

technical field [0001] The invention belongs to the field of water heaters, and in particular relates to a pressurized gas water heater and a control method. Background technique [0002] A gas water heater is an instant water heater that burns fuel to transfer heat to water, and is becoming more and more popular among ordinary household users. However, the combustion effect of gas water heaters will be limited by the gas supply conditions of users' homes. Some users' homes may have problems with gas water heaters not working properly due to insufficient gas supply pressure of the overall pipe network or insufficient gas supply during peak gas consumption, affecting hot water production. Speed ​​and user bathing experience. [0003] At present, the maximum gas pressure in my country is about 3000Pa, but the gas pressure is seriously insufficient during the peak gas consumption, which will inevitably cause the following problems: First, the gas pressure may be lower than 100...

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Problems solved by technology

However, the combustion effect of gas water heaters will be limited by the gas supply conditions of users' homes. Some users' homes may have problems with gas water heaters not working properly due to insufficient gas supply pressure of the overall pipe network or insufficient gas supply during peak gas consumption, affecting hot water production. The speed and user bathing experience

[0003] At present, the maximum gas pressure in my country is about 3000Pa, but the gas pressure is seriously insufficient during the peak gas consumption, which will inevitably cause the following problems: First, the gas pressure may be lower than 1000Pa during the peak gas consumption, resulting in the failure of the gas water heater to start normally; The working principle of gas water heaters, low air pressure directly affects the speed of hot water outlet; third, the poor stability of air pressure affects the stability of outlet water temperature, which will be directly felt by users during use, greatly affecting user experience

[0004] At present, there are no related gas booster water heater products in the market. When the pressure is low, the ratio of gas to air is only adjusted by controlling the proportional valve, and the pressure stability of the gas behind the proportional valve is improved by increasing the opening of the proportional valve. The effect of this method is very limited when the pressure is below 1000Pa

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