Dish-shaped flame low-nitrogen negative-pressure hot water unit and operation method thereof

Abstract

The invention relates to a dish-shaped flame low-nitrogen negative-pressure hot water unit and an operation method thereof. The dish-shaped flame low-nitrogen negative-pressure hot water unit is provided with an enclosure; a combustor is arranged at the front end of the enclosure; the combustor is provided with a fuel gas inlet, an air inlet and a smoke inlet; the dish-shaped flame low-nitrogen negative-pressure hot water unit is provided with a gas mixing chamber, and a spinning disk is arranged in the combustor; a combustion chamber and a water-cooling wall are arranged in the enclosure, anda circulating water tubulation is arranged at the rear part of the combustor; the upper part of the circulating water tubulation is provided with an upper space , the water-cooling wall, the circulating water tubulation and the upper space are all fully filled with circulating water; a heat exchange tube is mounted in the upper space, the heat exchange tube is filled with external supply hot water, and a smoke discharge pipe is arranged at the other side of the circulating water tubulation, which is opposite to the combustion chamber; a gas extraction device for enabling a circulating water system to be kept under a negative pressure is arranged at the upper space; moreover, the dish-shaped flame low-nitrogen negative-pressure hot water unit is provided with an explosion-proof device. Inaddition, the dish-shaped flame low-nitrogen negative-pressure hot water unit is provided with a PLC (Programmable Logic Controller) and a plurality of sensors and an automatic control frequency converter which are in signal and control connection with the PLC. The dish-shaped flame low-nitrogen negative-pressure hot water unit adopts dish-shaped flame low-nitrogen negative-pressure manual or automatic control operation, is perfect and reasonable in structure and has the obvious advantages of high efficiency, energy saving, environment protection, safety and automatic operation.

Description

technical field [0001] The invention relates to a device for generating hot water, which is a high-efficiency, low-emission nitrogen oxide, negative-pressure operation and safe hot water unit using natural gas as fuel. Specifically, it is a dish-shaped flame low-nitrogen negative pressure water heating unit and its operation method, a water heating device suitable for various hot water supply demands. Background technique [0002] At present, the device that generates hot water through natural gas combustion is usually a gas boiler. Energy saving and environmental protection are the inevitable requirements of the boiler industry. With the improvement of national environmental protection emission requirements, the requirements for low nitrogen emission of boiler flue gas are becoming more and more stringent. At the same time, since traditional boilers are usually pressure vessels, and the furnace body is a pressure-bearing part, there may be a potential safety hazard of explo...

AI Technical Summary

Problems solved by technology

At the same time, since traditional boilers are usually pressure vessels, and the furnace body is a pressure-bearing part, there may be a safety hazard of explosion during operation.

In addition, the thermal efficiency and the degree of automation and intelligence of operation also need to be improved.

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