CN202598483U

CN202598483U - Anti-wear device for boiler coal-saving device

Info

Publication number: CN202598483U
Application number: CN2012201386871U
Authority: CN
Inventors: 陈长龙; 王堃
Original assignee: SHUANGYASHAN HONGYAN THERMAL POWER CO Ltd HEILONGJIANG LONGMAY MINING HOLDING GROUP CO Ltd
Current assignee: SHUANGYASHAN HONGYAN THERMAL POWER CO Ltd HEILONGJIANG LONGMAY MINING HOLDING GROUP CO Ltd
Priority date: 2012-04-05
Filing date: 2012-04-05
Publication date: 2012-12-12
Anticipated expiration: 2022-04-05

Abstract

An anti-wear device for a boiler coal-saving device comprises an arc anti-wear tile, a coal-saving device discharge pipe, a large anti-wear plate, a small anti-wear plate, through-wall anti-wear plates, hot-resistant steel bars and tie bars. The anti-wear device for the boiler coal-saving device is characterized in that the arc anti-wear tile made of a steel plate is attached to the upper portion of a pipe wall on the first layer of the coal-saving device discharge pipe to be matched and welded. One end of the arc anti-wear tile is fixedly welded with the through-wall anti-wear plates in a matching mode, and the other end of the arc anti-wear tile is fixedly welded with the upper end of the large anti-wear plate in a matching mode. The lower end of the large anti-wear plate is fixedly welded with a pipe wall on the lowest layer of the coal-saving device discharge pipe in a matching mode. The small anti-wear plate covers other pipe ends except ends of a water outlet pipe and a water inlet pipe at the other end of a coal-saving device and is fixedly welded with the other pipe ends in a matching mode. The through-wall anti-wear plates comprise an upper through-wall anti-wear plate and a lower through-wall anti-wear plate. One end of the upper through-wall anti-wear plate is fixedly welded with the arc anti-wear tile and the other end of the upper through-wall anti-wear plate penetrates through the furnace wall for fixing. The lower through-wall anti-wear plate is fixedly welded with the upper portion of the water inlet pipe of the lowest position and the end head of the lower through-wall anti-wear plate penetrates through the furnace body for fixing. The hot-resistant steel bars are arranged in gaps between each row of the coal-saving pipelines. The upper end and the lower end of each hot-resistant steel bar are fixedly welded with the tie bars in a matching mode. After installation, wear degree of the heating surface of the boiler is greatly lowered, service life of the coal-saving device can be prolonged for four to five years, and economic benefits are obvious.

Description

The boiler economizer antiwear device

Technical field

The utility model relates to the boiler technology field, especially a kind of boiler economizer antiwear device.

Background technology

In order effectively to utilize the boiler combustion waste heat, the afterbody outlet flue place at boiler in the design is equipped with economizer in the use of boiler, utilizes boiler promptly to get rid of the waste heat heating boiler water inlet in the flue gas, improves water temperature; Shorten the purpose that boiler reaches province's coal heat time heating time, still, because cigarette speed in economizer position is big, coal of poor quality; Granularity in boiling furnace combustion is big, the solid imperfect combustion, and impurity is many and cause in the flue gas flying dust concentration big, when flue gas is flowed through economizer; Because the circulation of flue gas is strong, circulation area is big, and flue gas flow makes that greatly the wearing and tearing of economizer U type crook are big, very easily damages; After flue gas came out from convection bank, from the effect of retaining cigarette wall and the inertia force of flue gas, the flue gas non-uniform flow was through economizer; Bigger to the wearing and tearing of abrasionproof angle bar right angle, economizer top, and flue gas also can directly wash away the second following root canal wall with the sag of angle bar, the wearing and tearing of second pipe of acceleration; In addition, the whole uneven wear of economizer is because inhomogeneous the causing of economizer comb spacing.The adjustment of comb spacing is to lean on being connected between pipe clamp and the pipe clamp to adjust; Be in operation; Because stirring when distortion of economizer expanded by heating and the cleaning of economizer dust makes the change of economizer comb spacing, causes flue gas flow and flow velocity uneven wear economizer.

Summary of the invention

Make greatly that in order to overcome this flue gas flow the wearing and tearing of economizer U type crook are big; The flue gas non-uniform flow is through economizer; Bigger to the wearing and tearing of abrasionproof angle bar right angle, economizer top, quicken the wearing and tearing of second pipe, and the change of economizer comb spacing; Cause the deficiency of flue gas flow and flow velocity uneven wear economizer, the utility model provides a kind of boiler economizer antiwear device.After original antiwear device transformed, very effectively reduced the damage that greatly economizer is caused because of flying dust concentration in the flue gas, and installed simply, easy to maintenance, improvement expenses is low.

The utility model solves the scheme that its technical problem is taked, and is made up of arc wearing-resistant tile, economizer comb, big wear strip, little wear strip, wear strip through walls, heat-resisting reinforcing bar, lacing wire, and the arc wearing-resistant tile is processed by steel plate; The tube wall top that the arc wearing-resistant tile is attached to economizer comb ground floor cooperates solid welding, and arc wearing-resistant tile one end cooperates solid welding with wear strip through walls, and end cooperates solid welding with big wear strip upper end in addition; Big wear strip lower end cooperates solid welding with economizer comb orlop tube wall; Little wear strip protects economizer and brings out other pipe end beyond water pipe and the water inlet pipe in addition, is mated solid welding, and wear strip through walls is two up and down; Top wear strip one end through walls and the solid welding of arc wearing-resistant tile; Other end penetrates furnace wall and fixes, and bottom wear strip through walls cooperates solid welding with descending most root water inlet pipe top, and the termination penetrates furnace wall and fixes; Heat-resisting reinforcing bar stands on every row's economizer pipeline gap, and two ends cooperate solid welding with lacing wire respectively up and down.

The beneficial effect of the utility model is, the degree of wear of boiler heating surface reduces greatly, and the economizer life cycle prolongs four to five years, and economic benefit is obvious.

Description of drawings:

With reference to accompanying drawing the utility model is further specified.

Fig. 1. be the utility model structural front view;

Fig. 2. be the utility model A-A left view.

The specific embodiment:

The utility model specific embodiment is with reference to Fig. 1, Fig. 2, is made up of arc wearing-resistant tile, economizer comb, big wear strip, little wear strip, wear strip through walls, heat-resisting reinforcing bar, lacing wire, with reference to Fig. 1; Arc wearing-resistant tile 5 is processed by steel plate, and tube wall 3 tops that arc wearing-resistant tile 5 is attached to economizer comb ground floor cooperate solid welding, and arc wearing-resistant tile 5 one ends cooperate solid welding with wear strip 4 through walls; Other holds with big wear strip 7 upper ends and cooperates solid welding, and big wear strip 7 lower ends cooperate solid welding with economizer comb orlop tube wall 8, and little wear strip 1 protects economizer and holds in addition except that outlet pipe 3 and other pipe end the water inlet pipe 8; Be mated solid welding, wear

strip

4,9 through walls is two up and down, top wear strip 4 one ends through walls and 5 solid weldings of arc wearing-resistant tile; It is fixing that end penetrates furnace wall 2 in addition; Bottom wear strip 9 through walls cooperates solid welding with descending most root water inlet pipe 8 tops, and it is fixing that the termination penetrates furnace wall 2, with reference to Fig. 2; Heat-resisting reinforcing bar 6 stands on every row's economizer pipeline gap, and two ends cooperate solid welding with lacing wire 10 respectively up and down.

Claims

1. a boiler economizer antiwear device is made up of arc wearing-resistant tile, economizer comb, big wear strip, little wear strip, wear strip through walls, heat-resisting reinforcing bar, lacing wire, and it is characterized in that: the arc wearing-resistant tile is processed by steel plate; The tube wall top that the arc wearing-resistant tile is attached to economizer comb ground floor cooperates solid welding, and arc wearing-resistant tile one end cooperates solid welding with wear strip through walls, and end cooperates solid welding with big wear strip upper end in addition; Big wear strip lower end cooperates solid welding with economizer comb orlop tube wall; Little wear strip protects economizer and brings out other pipe end beyond water pipe and the water inlet pipe in addition, is mated solid welding, and wear strip through walls is two up and down; Top wear strip one end through walls and the solid welding of arc wearing-resistant tile; Other end penetrates furnace wall and fixes, and bottom wear strip through walls cooperates solid welding with descending most root water inlet pipe top, and the termination penetrates furnace wall and fixes; Heat-resisting reinforcing bar stands on every row's economizer pipeline gap, and two ends cooperate solid welding with lacing wire respectively up and down.