Modular compact gas boiler provided with three-dimensional finned tubes and condenser

Abstract

The invention discloses a modular compact gas boiler provided with three-dimensional finned tubes and a condenser. The gas boiler comprises a gas boiler body and the condenser and is characterized in that a condenser smoke flow equalization bent zone is arranged at the front end of the condenser; smoke outlets of second return stroke heat exchange tubes are connected with a condenser smoke inlet at the front end of the condenser smoke flow equalization bent zone; a condenser smoke outlet is arranged at the upper end of the tail of the condenser; a condensed water drain port is arranged at the lower end of the tail of the condenser; multiple three-dimensional heat exchange tubes arranged in parallel in the height direction are arranged in the middle of the condenser; each three-dimensional heat exchange tube is arranged in an S shape; the water inlet end of each three-dimensional heat exchange tube is connected with a condenser water inlet tube; the water outlet end of each three-dimensional heat exchange tube is connected with a condenser water outlet tube; one end of the condenser water inlet tube is connected with a water inlet pump through an adjusting valve; and one end of the condenser water outlet tube is connected with a water inlet of the boiler. The gas boiler can be widely applied in the fields of energy, chemical industries and the like.

Description

technical field [0001] The invention relates to a gas boiler and a condenser, in particular to a modular compact three-dimensional rib tube gas boiler and a condenser. Background technique [0002] In the past ten years, China's energy structure has undergone tremendous changes. Due to the use of coal as fuel, it has caused great damage to the environment. With the transformation of the national energy policy, natural gas will become the main energy source for civil heating. [0003] The traditional three-pass natural gas gas-fired boiler has a large furnace body, which affects the floor area, and the exhaust gas temperature is about 150°C, which fails to make full use of the latent heat of vaporization of water vapor in the tail flue gas, resulting in a great waste of energy. However, the integrated gas-fired boilers that have appeared in recent years, although the third return trip is canceled, it is replaced by adding a condenser outside the boiler. However, the body of ...

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Problems solved by technology

However, the body of the gas-fired boiler is large in size, the heat exchange efficiency of the second return and the added external condenser is low, and there are problems such as the inability to change the exhaust gas temperature according to needs, large user investment, and difficult piping layout.

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