CN104456589A

CN104456589A - Arrangement structure of shock wave ash blower of vertical waste heat boiler

Info

Publication number: CN104456589A
Application number: CN201410562669.XA
Authority: CN
Inventors: 赵文辰; 强逸; 顾利平; 潘宇峰
Original assignee: Jiangsu Taihu Boiler Co Ltd
Current assignee: Jiangsu Taihu Boiler Co Ltd
Priority date: 2014-10-22
Filing date: 2014-10-22
Publication date: 2015-03-25

Abstract

The invention provides an arrangement structure of a shock wave ash blower of a vertical waste heat boiler. The arrangement structure can solve the problem that an existing arrangement structure of the nozzle-type shock wave ash blower is narrow in shock wave space and poor in ash blowing effect, and therefore high heat transfer efficiency of the heating surfaces of the boiler can be effectively guaranteed. A row of shock wave ash blowing tubes transversely penetrating through the chamber of the vertical waste heat boiler are horizontally arranged above each stage of heating surface of the vertical waste heat boiler, each shock wave ash blowing tube is independently connected with a shock wave pulse generator, each shock wave pulse generator is installed on a side plate of a box of the vertical waste heat boiler through an installation support, and the wall of each shock wave ash blowing tube is provided with a plurality of downward ash blowing holes uniformly in the length direction.

Description

The arrangement of vertical exhaust-heat boiler shock wave soot blower

Technical field

The present invention relates to boiler ash removal technical field, especially relate to the ash cleaning technology field of vertical exhaust-heat boiler, be specially the arrangement of vertical exhaust-heat boiler shock wave soot blower.

Background technology

The dust stratification of vertical exhaust-heat boiler heating surface is one of principal element affecting safe operation of the boiler and boiler output, and shock wave soot-blowing system effectively can remove the dust stratification of boiler heating surface, makes the heat transfer efficiency that heating surface keeps good.Traditional vertical exhaust-heat boiler adopts nozzle-type shock wave soot blower, it is generally arranged in the furnace wall both sides of vertical exhaust-heat boiler, see Fig. 1, the nozzle 10 of both sides blows ash in the mode that level is inside, and it exists shock wave narrow space, the dust stratification of coiled pipe end of boiler heating surface is difficult to the defect thoroughly removed.In Fig. 1,11 is Impulsive tank, and 12 is the signal of boiler symmetrical center line.

Summary of the invention

For the problems referred to above, the invention provides the arrangement of vertical exhaust-heat boiler shock wave soot blower, it can solve the shock wave narrow space that existing nozzle-type shock-wave ash-clearing device arrangement exists, the problem of blowing grey weak effect, thus effectively ensures the heat transfer efficiency that boiler heating surface is good.

A kind of arrangement of shock wave soot blower of vertical exhaust-heat boiler, it is characterized in that: above every one-level heating surface of vertical exhaust-heat boiler, be all horizontally disposed with the shock-wave ash blowing pipe that a row crosses described vertical exhaust-heat boiler burner hearth, wherein shock-wave ash blowing Guan Jun described in each root is singly connected with a shock wave impulse generator, shock wave impulse generator described in each is installed on the side plate of the casing of described vertical exhaust-heat boiler respectively by mounting bracket, the tube wall of described shock-wave ash blowing pipe evenly has along its length some downwards blow grey hole.

It is further characterized in that:

A described shock-wave ash blowing pipe is provided with directly over the coiled pipe elbow ends of described vertical exhaust-heat boiler every one-level heating surface;

The every one-level heating surface of described vertical exhaust-heat boiler is 300mm ~ 350mm with the vertical range of the shock-wave ash blowing pipe be arranged at above this grade of heating surface;

Each arranges in described shock-wave ash blowing pipe, and the level interval B between adjacent described shock-wave ash blowing pipe is less than the diameter D of shock-wave oscillations scope.

Compared with the arrangement of traditional vertical waste heat boiler nozzle-type shock wave soot blower, beneficial effect of the present invention is:

(1) all horizontally disposed shock-wave ash blowing pipe having a row to cross waste heat boiler burner hearth in the top of vertical exhaust-heat boiler every one-level heating surface, what ensure that boiler depth heating surface blows grey effect, the tube wall of each root shock-wave ash blowing pipe evenly has along its length some downwards blow grey hole, then ensure that shock-wave oscillations is along the downward penetration power of flue gas flow direction, thus guarantee have enough shock wave scopes and space, substantially increase the effective area of shock-wave ash blowing and blow grey efficiency;

(2) be provided with a shock-wave ash blowing pipe directly over the coiled pipe elbow ends of the every one-level heating surface of vertical exhaust-heat boiler, ensure that every one-level heating surface coiled pipe elbow ends also can thorough deashing;

(3) the every one-level heating surface of vertical exhaust-heat boiler controls at 300mm ~ 350mm with the vertical range of the shock-wave ash blowing pipe be arranged at above this grade of heating surface, level interval B between adjacent described shock-wave ash blowing pipe is less than the diameter D of shock-wave oscillations scope, can ensure that each row's shock-wave ash blowing pipe has for corresponding boiler heating surface further and enough blow grey area, guarantee to blow grey effect.

Accompanying drawing explanation

Fig. 1 is existing traditional vertical waste heat boiler nozzle-type shock wave soot blower arrangement schematic diagram;

Fig. 2 is vertical exhaust-heat boiler nozzle-type shock wave soot blower arrangement schematic diagram of the present invention;

Fig. 3 is the side direction view of Fig. 2.

Detailed description of the invention

A kind of arrangement of shock wave soot blower of vertical exhaust-heat boiler, see Fig. 2 and Fig. 3, the shock-wave ash blowing pipe 2 that a row crosses described vertical exhaust-heat boiler burner hearth is all horizontally disposed with above every one-level heating surface 1 of vertical exhaust-heat boiler, wherein each root shock-wave ash blowing pipe 2 is all singly connected with a shock wave impulse generator 3, each shock wave impulse generator is installed on the side plate 5 of the casing of vertical exhaust-heat boiler respectively by mounting bracket 4, the tube wall of shock-wave ash blowing pipe 2 evenly has along its length some downwards blow grey hole 6; And be provided with a shock-wave ash blowing pipe 2-1 directly over the coiled pipe elbow ends 7 of the every one-level heating surface of vertical exhaust-heat boiler, this root shock-wave ash blowing pipe 2-1 determines to the distance between box side according to the snake bend end of heating surface apart from the size that the distance of side wall inwall is A, A; The every one-level heating surface 1 of vertical exhaust-heat boiler is 300mm ~ 350mm with the vertical range C of the shock-wave ash blowing pipe 2 be arranged at above this grade of heating surface; And in each row's shock-wave ash blowing pipe 2, the level interval B between adjacent shock-wave ash blowing pipe is less than the diameter D of shock-wave oscillations scope, the size of D is by the power decision of shock wave soot blower.In Fig. 2,8 is the signal of shock-wave oscillations scope; 9 is the signal of shock-wave ash blowing scope.

Claims

1. the arrangement of vertical exhaust-heat boiler shock wave soot blower, it is characterized in that: above every one-level heating surface of vertical exhaust-heat boiler, be all horizontally disposed with the shock-wave ash blowing pipe that a row crosses described vertical exhaust-heat boiler burner hearth, wherein shock-wave ash blowing Guan Jun described in each root is singly connected with a shock wave impulse generator, shock wave impulse generator described in each is installed on the side plate of the casing of described vertical exhaust-heat boiler respectively by mounting bracket, the tube wall of described shock-wave ash blowing pipe evenly has along its length some downwards blow grey hole.

2. the arrangement of vertical exhaust-heat boiler shock wave soot blower according to claim 1, is characterized in that: be provided with a described shock-wave ash blowing pipe directly over the coiled pipe elbow ends of described vertical exhaust-heat boiler every one-level heating surface.

3. the arrangement of vertical exhaust-heat boiler shock wave soot blower according to claim 1, is characterized in that: the every one-level heating surface of described vertical exhaust-heat boiler is 300mm ~ 350mm with the vertical range of the shock-wave ash blowing pipe be arranged at above this grade of heating surface.

4. the arrangement of vertical exhaust-heat boiler shock wave soot blower according to claim 1, is characterized in that: each arranges in described shock-wave ash blowing pipe, and the level interval B between adjacent described shock-wave ash blowing pipe is less than the diameter D of shock-wave oscillations scope.