Gas water heater

Abstract

The invention discloses a gas water heater. The gas water heater comprises a hood, and a fan mounted at the upper end of the hood; the hood comprises an intake port and an exhaust port; the fan is mounted on the end surface of the exhaust port; the end surface of the exhaust port and the end surface of the intake port form a certain included angle; a shaft of the fan is perpendicular to the end surface of the exhaust port; an exhaust pipe is radially arranged on a volute of the fan, and is connected with a smoke discharge pipe; the intake port of the hood forms a certain included angle with the exhaust port, and the fan is perpendicular to the exhaust port, so that the problem of nonuniform distribution of the air speed of the intake port caused by fan exhausting can be reduced, an eddy area of the hood is small, and the problem of deteriorated combustion of local anode of the water heater is prevented; and the gas water heater is simple in structure, reduces the production cost when reducing the part number, and prolongs the service life.

Description

technical field [0001] The invention belongs to a water heater, and in particular relates to a water heater which can make the air velocity of the air inlet of the fume hood uniform. Background technique [0002] Existing gas water heater exhaust hoods are mostly divided into two types, one is inverted T-shaped exhaust hoods, most of which are blown gas water heaters below, and the other is a derivative type of inverted T, which is more common in upward draft gas water heaters; [0003] On the other hand, the wind speed at the inlet of the inverted T-shaped exhaust hood is unevenly distributed, and the difference between the central wind speed and the surrounding wind speed is not large, resulting in different flame combustion conditions of the whole machine, mainly manifested in different flame heights and inconsistent colors, which lead to Defects such as partial combustion deterioration of the whole machine and high smoke; [0004] However, the common way to solve the up...

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Problems solved by technology

[0003] On the other hand, the wind speed at the inlet of the inverted T-shaped exhaust hood is unevenly distributed, and the difference between the central wind speed and the surrounding wind speed is not large, resulting in different flame combustion conditions of the whole machine, mainly manifested in different flame heights and inconsistent colors, which lead to Defects such as partial combustion deterioration of the whole machine and high smoke;

[0004] However, the common way to solve the upside-down T-shaped exhaust hood is to add an air regulating plate inside the exhaust hood of the complete machine or add an air regulating plate at the lower part of the burner to make the air intake even. Reduce the energy efficiency of the fan, affect the wind resistance performance of the whole machine and increase the number of parts

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