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Variable-cross-section adjustment economizer

A technology of economizer and cross-section, which is applied in the direction of feed water heater, preheating, steam generation, etc., can solve the problems of failing to reach the economic load index of the boiler, dew condensation and dust blocking of the bag filter, and affecting the safe operation of the boiler, etc., to achieve The effect of reducing the flue gas circulation section, reducing the heating area, and reliable regulation guarantee

Pending Publication Date: 2017-10-20
哈尔滨红光锅炉总厂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing economizer has a low actual heating load in a short period of time and cannot reach the economic load index of the boiler, which will cause dust accumulation in the economizer on the heating surface at the rear of the boiler, dust accumulation and condensation in the air preheater, and even Condensation and ash blockage of the bag filter will directly affect the safe operation of the boiler, and then a variable cross-section adjustable economizer is proposed

Method used

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  • Variable-cross-section adjustment economizer

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine Figure 1 to Figure 2 This embodiment is described. An economizer with variable section adjustment described in this embodiment includes an economizer main body 1, a plurality of partitions 2 and a plurality of adjustment gates 3, and a plurality of partitions 2 are arranged side by side in parallel in the province. In the main body 1 of the coal burner, a flue gas channel 4 is formed between two adjacent partitions 2, and each flue gas channel 4 is provided with an adjusting cut-off door 3 at the entrance 4-1 facing the flue gas entering direction.

specific Embodiment approach 2

[0010] Specific implementation mode two: combination Figure 1 to Figure 2 To illustrate this embodiment, an economizer with variable section adjustment described in this embodiment further includes a plurality of opening adjustment assemblies 5 , and an opening adjustment assembly 5 is provided at the end of each adjustment gate 3 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0011] Specific implementation mode three: combination Figure 1 to Figure 3 To illustrate this embodiment, each opening adjustment assembly 5 of an economizer with variable section adjustment in this embodiment includes a handle 5-1, a sector piece 5-2, a limit shaft 5-3 and a rotation shaft 5 -4, the handle 5-1 is rotationally connected with the end of the adjustment cut-off door 3 through the rotating shaft 5-4, the fan-shaped piece 5-2 is set on the rotating shaft 5-4, and the fan-shaped piece 5-2 is located at the handle 5-1 Below, the sector piece 5-2 is provided with an arc-shaped limiting through hole 5-2-1, one end of the limiting shaft 5-3 is connected with the handle 5-1, and the other end of the limiting shaft 5-3 is inserted into the In the arc-shaped limiting through hole 5-2-1, and the limiting shaft 5-3 can move along the arc-shaped limiting through hole 5-2-1. Other components and connections are the same as those in the second embodiment.

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Abstract

The invention relates to an economizer, in particular to a variable-cross-section adjustment economizer. The variable-cross-section adjustment economizer aims at solving the problem that an existing economizer is slightly low in actual heat supply load in the short run, the boiler economical load index cannot be achieved, economizer ash accumulation on the heated face of the bottom of a boiler will be achieved, ash is accumulated on an air pre-heater, dew is formed on the air pre-heater, even a bag-type dust collector forms dew and is blocked by the ash, and therefore safety running of the boiler is directly influenced. The variable-cross-section adjustment economizer comprises an economizer body, a plurality of separating plates and a plurality of adjusting stop valves, the multiple separating plates are arranged inside the economizer body in parallel side by side, and a smoke channel is formed between every two adjacent separating plates; and one adjusting stop valve is arranged at an inlet, facing the smoke inlet direction, of each smoke channel. The variable-cross-section adjustment economizer belongs to the field of boiler production.

Description

technical field [0001] The invention relates to a coal economizer, in particular to a variable section adjustable economizer, which belongs to the field of boiler production. Background technique [0002] The economizer is a convective heating surface arranged in the flue at the rear of the boiler body to heat the boiler feed water and reduce the temperature of the flue gas. At present, most large-scale hot water boilers for central heating are equipped with economizers. Due to the low heat load in the initial and final stages of heating, individual users also have low actual heating load in a short period of time, which cannot reach the boiler economy. This will cause ash accumulation in the economizer on the heating surface at the rear of the boiler, ash accumulation in the air preheater, and even dew condensation in the bag filter, which will directly affect the safe operation of the boiler. Contents of the invention [0003] The present invention solves the problem th...

Claims

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Application Information

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IPC IPC(8): F23J15/06F22D1/02
CPCF22D1/02F23J15/06Y02E20/30
Inventor 李鑫吴明学吕雪艳姜英波
Owner 哈尔滨红光锅炉总厂有限责任公司