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Large gas-fired hot water boiler

A gas-fired hot water and boiler technology, applied to water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as lack of design experience, unsuitable for standard update speed, etc., to facilitate installation and daily maintenance, and increase rigidity , The effect of convenient maintenance work

Active Publication Date: 2016-02-24
TIANJIN BAOCHENG MACHINERY MFG
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After nearly 3-4 years of application, domestic large-scale gas-fired hot water heating boilers have initially occupied the domestic market, but the larger gas-fired boilers are still in the stage of research and exploration and operation experience summary, lacking relevant design experience, with the national standards for In an environment where boiler thermal efficiency and flue gas emission NOx values ​​are constantly demanding, the original large-scale gas-fired hot water boiler has a thermal efficiency of 95% and NOx of 120-150mg / Nm3 is far from adapting to the standards and market update speed. Therefore, in terms of thermal efficiency , flue gas NOx index, exhaust gas temperature and other aspects to achieve a higher breakthrough has become the main research direction of large-scale gas-fired hot water heating boilers

Method used

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0040] A large-scale gas-fired hot water boiler, including a furnace body 1, a burner 13, a flue 8, a chimney 2, an economizer 9, a water-cooled condenser 5, a second-stage air-type condenser 4, and a first-stage air-type condenser 3. One end of the furnace body is equipped with two burners arranged at intervals up and down. The other end of the furnace body is equipped with a flue gas outlet and is sealed and connected with a flue. The outlet of the flue is connected to a vertical chimney. Between the furnace body and the chimney Two-stage economizers are installed in the flue between them, and the chimney is sequentially installed with a water-cooled condenser, a second-stage air-type condenser, and...

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Abstract

The invention relates to a large gas-fired hot water boiler. The large gas-fired hot water boiler comprises a boiler body, combustors, a flue, a chimney, economizers, a water-cooling-type condenser, a second-stage air-type condenser and a first-stage air-type condenser, wherein one end of the boiler body is provided with the two combustors which are vertically arranged at an interval; the other end of the boiler body is provided with a smoke outlet and is connected with the flue in a sealed manner; the outlet of the flue is connected with the vertical chimney; two stages of economizers are sequentially arranged in the flue between the boiler body and the chimney; the water-cooling-type condenser, the second-stage air-type condenser and the first-stage air-type condenser are sequentially arranged on the chimney from bottom to top; and smoke in the boiler body is exhausted from the boiler body, sequentially passes through the two stages of economizers, the water-cooling-type condenser, the second-stage air-type condenser and the first-stage air-type condenser, and is finally exhausted through the upper end of the chimney. The large gas-fired hot water boiler has the advantages that the operation is stable; safety and reliability are ensured; the output is sufficient; the exhaust gas temperature is low; the efficiency is high; the smoke emission index meets the requirement; and the market development requirement is better met.

Description

technical field [0001] The invention belongs to equipment in the field of urban central heating, in particular to a large-scale gas-fired hot water boiler. Background technique [0002] This equipment belongs to the main equipment in the field of large-scale central heating in cities. It is aimed at the large-scale gas-fired hot water boilers used in large-scale urban heating coal-to-gas projects in the field of environmental protection and energy conservation advocated by the state. With the continuous improvement of domestic living standards, the society has gradually stricted environmental protection requirements around the living area. In the past, large-scale commercial housing and residential quarters generally used coal-fired hot water heating boilers, which caused serious dust and poisonous pollution to the surrounding living areas. Smoke pollution, cities are often shrouded in smog and dust. In order to improve the quality of life of urban people, the city began to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/40
CPCF24H1/406
Inventor 韩伟李耀荣刘蕾李少良韩圆圆邢志敏
Owner TIANJIN BAOCHENG MACHINERY MFG
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