Flow mixing device, gas mixing system, combustion system and water heater

The utility model provides a flow mixing device, a gas mixing system, a combustion system and a water heater, the flow mixing device comprises a shell, an inner flow mixing cavity is defined by the shell, one end of the shell is provided with a mixed gas inlet, and the mixed gas inlet is suitable for introducing mixed gas into the inner flow mixing cavity; a plurality of flow dividing holes are formed in the side wall of the shell, and the flow dividing holes are suitable for guiding out mixed gas in the inner flow mixing cavity. According to the flow mixing device, the inner flow mixing cavity is defined by the shell, and the multiple flow dividing holes communicated with the inner flow mixing cavity are formed in the shell, so that mixed gas can be mixed in the inner flow mixing cavity, and the mixing uniformity of the mixed gas is improved. 本实用新型提供了一种混流装置、混气系统、燃烧系统和热水器，该混流装置包括：壳体，围合出内混流腔，壳体的一端设有混气入口，适于向内混流腔内通入混合气体；其中，壳体的侧壁上设有多个分流孔，分流孔适于将内混流腔的混合气体导出。混流装置通过壳体围合出内混流腔，并在壳体上设置多个与内混流腔连通的分流孔，使得混合气体可在内混流腔内进行混合，提高了