Heat exchanger vacuum hot water boiler

Abstract

The invention provides a heat exchanger vacuum hot water boiler with a good heat transfer effect and low manufacturing cost. The heat exchanger vacuum hot water boiler comprises a boiler body, a cylindrical steam chamber, a water inlet pipe seat, a water outlet pipe seat, two or more heat exchangers, wherein the cylindrical steam chamber is positioned above the boiler body; sealing plates are respectively arranged at both ends of the steam chamber; a plurality of square holes are formed in a part between the boiler body and the steam chamber and used for communicating the boiler body with the steam chamber; a steel wire mesh is welded at the lower part of the steam chamber. According to the heat exchanger vacuum hot water boiler provided by the invention, a front pipe box and a rear pipe box of the heat exchangers are made into a cylinder shape and are made of round pipes with the standard specification, so that flanges and flange covers, which are connected with the front and rear pipe boxes, can have the corresponding standard specification, and thus, the manufacturing process is simplified, manufacturing cost is reduced, and the manufacturing period is shortened and deformation generated in the welding process is much smaller than that of a cuboid-shaped structure; the heat exchangers are more convenient to overhaul; arrangement of heat exchange pipes is more dispersed than that of single heat exchangers, so that the heat transfer effect is further enhanced.

Description

technical field [0001] The invention relates to a hot water boiler, in particular to a heat exchanger vacuum hot water boiler. Background technique [0002] In traditional vacuum boilers, the heat exchanger, smoke pipe and furnace are all placed inside the pot shell, and the pot shell is made into a built-in structure with an oblong cross section. There is also a steam chamber separated from the pot shell, and the heat exchanger is fixed. In the steam chamber, the pot shell is made into a cylindrical external structure that is welded and fixed to the shell of the steam chamber. Regardless of the structure, the heat exchanger adopts a traditional cuboid structure. The heat exchanger with this structure, its The production process is complicated, the production cost is high, and the maintenance is inconvenient, which also leads to an excessively large steam space. The boiler with this structure also has disadvantages such as poor steam quality, high noise, and poor pressure be...

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Problems solved by technology

[0002] In traditional vacuum boilers, the heat exchanger, smoke pipe and furnace are all placed inside the pot shell, and the pot shell is made into a built-in structure with an oblong cross section. There is also a steam chamber separated from the pot shell, and the heat exchanger is fixed. In the steam chamber, the pot shell is made into a cylindrical external structure that is welded and fixed to the shell of the st

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