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Air volume linear adjusting method and adjusting device for air blower

A technology of linear adjustment and blower, which is applied in the direction of blowing equipment, combustion method, and air supply adjustment, which can solve problems such as uneven air volume, high manufacturing precision requirements, and uneven air intake, so as to ensure sufficient combustion and manufacturing accuracy The effect of low requirements and uniform air intake

Pending Publication Date: 2020-03-24
JIANGSU XCMG CONSTR MASCH RES INST LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned air volume adjustment method, during the air volume adjustment process, there are only a few narrow gaps in the initial air intake volume, and the air intake volume is uneven. In a small opening, the air volume is uneven. On the other hand, in practical applications, the nonlinear function relationship is more complicated, such as figure 2 , poor application effect
The existing mechanism that realizes the above adjustment method rotates the rotating shaft on the air supply pipeline through the connecting rod mechanism, and the rotating shaft drives the butterfly plate to rotate. The connecting rod mechanism is composed of multiple rotating pairs, which requires high manufacturing precision, and processing errors are reflected in the motion control. , the error in adjusting the air volume is large, which has a great impact on the corresponding relationship between the actual opening and air volume, and affects the air-fuel ratio, combustion performance, and combustion efficiency

Method used

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  • Air volume linear adjusting method and adjusting device for air blower
  • Air volume linear adjusting method and adjusting device for air blower
  • Air volume linear adjusting method and adjusting device for air blower

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 4 and Figure 5 As shown, the blower air volume adjustment device of the present invention includes a track device 1 , an air volume adjustment mechanism 2 , a power system 3 and a fixed support 4 .

[0037] The track device 1 includes an outer track 1-1, a track sealing plate 1-2 and outer balls 1-3.

[0038] The outer track 1-1 is composed of a U-shaped groove and an inner arc surface. The track sealing plate 1-2 is welded together with the outer track 1-1, and the track sealing plate 1-2 seals the outer ball 1-3 to prevent derailment and at the same time acts as a limiter to the air volume regulating blade. The outer balls 1-3 are evenly distributed in the U-shaped groove of the outer track 1-1. The lower ends of the right regulating vane 2-3 and the left regulating vane 2-4 are located in the U-shaped groove of the outer track 1-1, so that the right regulating vane 2-3 and the left regulating vane 2-4 pass through the outer ball 1-3 along the oute...

Embodiment 2

[0051] On the basis of Embodiment 1, the tightly meshing regulating blades at the initial position can be deformed into different numbers, different positions, and different areas of overlapping overlapping types. Such as Figure 8 It is a schematic diagram of the adjustment process of the air volume adjustment device when the three crossovers are overlapped. Before the two air volume adjustment blades are completely disengaged, the part of the section line is the overlapping area of ​​the adjustment blades. Compared with Example 1, in this embodiment, the initial adjustment of the ventilation area in the first stage The slope of the function with the number of revolutions of the actuator becomes smaller, such as image 3 As shown in the middle curve ②, the air volume adjustment is more precise and stable. When the number of leaf overlaps is different, the area is different, and the position is different, three curves with different slopes are formed, such as image 3 , Appl...

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Abstract

The invention discloses an air volume linear adjusting device and adjusting method for an air blower. The air volume linear adjusting device comprises two adjusting blades which are arranged in the radial direction of a ventilation pipeline, and the two adjusting blades can be driven by a power system to move along a rail in the same direction or in the opposite directions, so that the ventilationarea of the ventilation pipeline between the two adjusting blade clamping spaces is increased or decreased. By the adoption of the air volume linear adjusting device and adjusting method, full-rangeair volume adjustment can be achieved, the air inlet amount is more uniform, and the combustion sufficiency is guaranteed; the two-stage air volume adjustment, the ventilation area and the number of turns of an actuator are in a multi-section linear function relationship, and the air volume is accurately adjusted; and the air volume adjusting device is of a movable structure, the manufacturing precision requirement is low, and the maintenance is convenient.

Description

technical field [0001] The invention is applicable to the field of precise adjustment of air volume, in particular to a method and an adjustment device for linear air volume adjustment of burners, boilers, gasification furnaces and other equipment. Background technique [0002] Combustion equipment The equipment that ignites fuel and converts chemical energy into heat energy should meet the requirements of timely, continuous and stable combustion, high thermal efficiency, high combustion heat load, safe and reliable operation, and less pollution to the environment. Combustion equipment is mainly composed of air supply system, combustion system, oil supply system, gas supply system, control system, etc. The air supply system provides air volume according to the designed air-fuel ratio. In actual control, large air volume affects flame stability; small air volume , affecting the sufficiency of combustion. The accuracy and stability of air volume adjustment directly affect the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L13/06F23L5/02F23N3/00
CPCF23L13/06F23L5/02F23N3/007
Inventor 王芸红黄建华周康
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD
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