Control method for pressure boost gas water heater, and gas water heater

Abstract

The invention discloses a control method for a pressure boost gas water heater, and the gas water heater. The gas water heater comprises a turbocharging device and a liquid driving device, wherein theturbocharging device is arranged on a gas inlet pipeline; the liquid driving device drives the turbocharging device to operate; after the gas water heater is started, ignition is firstly started, andif the ignition is successful, normal work is carried out; and if the ignition is not successful, a judgment result shows that gas inlet pressure is excessively low, the liquid driving device is controlled to drive a liquid to enter the turbocharging device so as to drive the turbocharging device to operate, and gas is subjected to pressure boost. The control method disclosed by the invention istimely and quick in gas pressure boost, the gas inlet pressure and stability can be guaranteed so as to guarantee to match an optimal combustion working condition, a water discharging temperature andstability can be guaranteed, and the 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 control method of a pressurized gas water heater and a gas water heater. Background technique [0002] Gas water heaters are fast water heaters that burn fuel to transfer heat to water, and are becoming more and more popular with ordinary home users. However, the combustion effect of the gas water heater will be limited by the gas supply conditions of the user's home. In some users' homes, due to insufficient gas supply pressure in the overall pipe network or insufficient gas supply during peak gas consumption, the gas water heater may not work normally, affecting the hot water output. 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 tha...

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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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