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An Industrial Pulverized Coal Boiler with Dual Horizontal Furnaces Contrasted Arrangement

A pulverized coal boiler, double-level technology, applied in the direction of using multiple fuel combustion, burning powder fuel burners, burning block fuel and powder fuel, etc., can solve the problem of outage maintenance, long-term continuous operation, etc. problem, to achieve the effect of guaranteed load

Active Publication Date: 2021-10-29
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing industrial pulverized coal boiler needs to be shut down for maintenance when the burner and the furnace break down, resulting in the problem that it cannot run continuously for a long time, an industrial pulverized coal boiler based on a dual-level furnace hedging arrangement is proposed.

Method used

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  • An Industrial Pulverized Coal Boiler with Dual Horizontal Furnaces Contrasted Arrangement
  • An Industrial Pulverized Coal Boiler with Dual Horizontal Furnaces Contrasted Arrangement
  • An Industrial Pulverized Coal Boiler with Dual Horizontal Furnaces Contrasted Arrangement

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specific Embodiment approach 1

[0032] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, an industrial pulverized coal boiler with dual horizontal furnaces facing each other in this embodiment includes a burner 1, a No. 1 horizontal furnace 2, a flue gas baffle 5, a No. 1 flue gas recirculation tube bundle 6, a rising Furnace 8, No. 2 horizontal furnace 9, No. 2 flue gas recirculation tube bundle 10 and steam-water circulation unit;

[0033] One side of the rising furnace 8 is provided with a No. 1 horizontal furnace 2, and the other side of the rising furnace 8 is provided with a No. 2 horizontal furnace 9. Both the No. 1 horizontal furnace 2 and the No. 2 horizontal furnace 9 are connected to the rising furnace 8. Furnace 2 and No. 2 horizontal furnace 9 are arranged opposite to the ascending furnace 8, and the joints of No. 1 horizontal furnace 2 and No. 2 horizontal furnace 9 and ascending furnace 8 are provided with flue gas baffles 5, and the flue gas baff...

specific Embodiment approach 2

[0035] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment. This embodiment is a further limitation on the industrial pulverized coal boiler described in the first specific embodiment. An industrial pulverized coal boiler with a double-level furnace opposed arrangement described in this embodiment. The steam-water cycle The unit includes No. 1 water wall outlet pipe 11, upper header 12, No. 1 upper grading header 13, No. 1 cooling water tank 14, upper header outlet pipe 15, lower header inlet pipe 16, lower header 17, and connecting branch pipe 19 , No. 1 water wall inlet pipe 20, No. 1 lower stage header 21, No. 1 cooling water pump 22, No. 2 cooling water pump 23, No. 2 lower stage header 24, No. 2 water wall inlet pipe 25, No. 2 water cooling Wall outlet pipe 26, No. 2 upper grading header 27 and No. 2 cooling water tank 28;

[0036] The upper part of the No. 1 horizontal furnace 2 is connected to the input port at the bottom of t...

specific Embodiment approach 3

[0040] Specific implementation mode three: combination figure 1 and figure 2 Describe this embodiment. This embodiment is a further limitation of the industrial pulverized coal boiler described in the second specific embodiment. An industrial pulverized coal boiler with a double-level furnace opposed arrangement described in this embodiment. The steam-water cycle Each pipeline in the unit is provided with a valve 18;

[0041] In this specific embodiment, a valve 18 is arranged on each pipeline in the steam-water circulation unit to facilitate the control of the steam-water circulation unit.

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Abstract

The utility model relates to an industrial pulverized coal boiler with double-level furnaces opposed to each other, which relates to the field of industrial boiler equipment. In order to solve the problem that the existing industrial pulverized coal boiler needs to be shut down for maintenance when the burner and the furnace break down, resulting in the problem that it cannot run continuously for a long time. The No. 1 horizontal furnace and the No. 2 horizontal furnace are arranged opposite each other. When a fault occurs in a single furnace and needs to be repaired, the corresponding flue gas baffle will be closed to isolate the flue gas without affecting the continuous operation of the other burner and the corresponding furnace. Each horizontal furnace has its own cooling water circulation branch, and the water wall of the furnace corresponding to the out of service burner is quickly cooled by circulating water, so that the inside of the out of service furnace can be cooled quickly. The temperature detection device shows that when the temperature in the furnace reaches room temperature, maintenance The personnel can start the maintenance work, so as to realize the effective maintenance of the inside of the furnace without stopping the boiler, and ensure the continuous operation of the industrial pulverized coal boiler for a long time. The invention is applicable to the field of industrial boiler equipment.

Description

technical field [0001] The invention relates to the field of industrial boiler equipment, in particular to an industrial pulverized coal boiler with double-level furnaces opposed to each other. Background technique [0002] Coal resources have always occupied a considerable proportion in my country's energy utilization. Coal-fired industrial boilers are the main coal-consuming equipment other than power plant boilers, with a total of nearly 600,000 units and an annual coal consumption of nearly 640 million tons. Coal-fired industrial boilers are widely used in industrial production, domestic heating, etc., especially in some northern regions, coal-fired industrial boilers are the main equipment for heating in winter. Compared with traditional layer-fired boilers, industrial pulverized coal boilers have gradually expanded their market share in coal-fired industrial boilers in recent years due to their high degree of automation, high boiler efficiency, and low pollutant emissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C5/08F23C7/00F23M5/08F23D1/00
CPCF23C5/08F23C7/00F23D1/00F23M5/08
Inventor 陈智超袁振华宋健张博李争起曾令艳
Owner HARBIN INST OF TECH
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