CN111664465A - Vertical garbage furnace economizer piping is fixed and deashing structure - Google Patents

Abstract

The invention relates to the technical field of economizer piping, in particular to a vertical garbage furnace economizer piping fixing and ash cleaning structure which is reasonably provided with a fixing mode of an economizer pipe, is convenient to overhaul and low in cost, and simultaneously ensures a good ash blowing effect.

Description

Vertical garbage furnace economizer piping is fixed and deashing structure

Technical Field

The invention relates to the technical field of economizer piping, in particular to a vertical garbage furnace economizer piping fixing and ash removing structure.

Background

The economizer pipe is an important component of a boiler economizer and is mainly formed by bending or folding a seamless steel pipe. The cast iron type economizer is composed of a series of horizontal cast iron pipes, which are connected to each other at both ends by cast iron elbows using flanges. The steel tube type economizer is composed of a series of coiled tubes arranged in parallel, the coiled tubes are formed by bending seamless steel tubes with the outer diameter of 25-42 mm, and the tubes are usually arranged in a staggered mode.

Because the economizer pipe exposes in the afterbody flue, with flue gas direct contact, can produce the deposition on the economizer pipe outer wall for a long time, the operation of current deashing all arranges the soot blower in the afterbody flue left and right sides, because afterbody flue cross section is the rectangle, the interval is great between the left and right sides, the economizer pipe that is located central point is hardly swept, lead to this department to produce the deposition easily, influence the heat transfer effect, and the economizer pipe all hangs the ventilation beam in piping top at present, make the flue gas circulate in the afterbody flue and receive the hindrance, can form local vortex phenomenon, and the ventilation beam is corroded by the flue gas for a long time, need often change, increased the cost of overhaul.

Disclosure of Invention

In order to solve the problems of unreasonable arrangement of the fixing mode of the existing economizer pipe, difficulty in maintenance, high cost and unsatisfactory soot blowing effect, the invention provides a fixing and ash cleaning structure for the economizer pipe system of a vertical garbage furnace.

The technical scheme is as follows: the utility model provides a vertical garbage furnace economizer piping is fixed and deashing structure, its includes afterbody flue and economizer pipe, its characterized in that, install the pipe clamp on the economizer pipe, the economizer backplate is connected through the connecting plate in the pipe clamp upper end, install the soot blower on the afterbody flue rear end, economizer pipe department leaves the installation dead zone of soot blower, the soot blower's soot blower pipe outlet end face is the inclined plane down.

The connecting plate is further characterized by comprising a row of vertical plates welded on the inner wall of the tail flue and a transverse plate for connecting all the vertical plates, and the upper end of the pipe clamp is welded and fixed on the transverse plate;

an acute angle welding area is arranged at the connecting surface of the vertical plate and the transverse plate;

and three soot blowers are arranged at the same height of the tail flue side by side at intervals.

After the invention is adopted, the soot blower is arranged at the rear end of the tail flue, namely behind the boiler, and the soot blower can sweep to the front end due to small front-rear distance, thereby obtaining better soot removing effect, ensuring heat exchange effect, canceling a ventilation beam, being incapable of forming local vortex corroding pipes, avoiding the overhauling and replacement caused by the corrosion of the ventilation beam by smoke, and only replacing a connecting plate when the boiler is overhauled, compared with replacing the beam, the invention has convenient operation and reduced overhauling cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the direction A in FIG. 1;

FIG. 3 is a schematic view of the connection between the pipe clamp and the connecting plate;

fig. 4 is a schematic view of direction B in fig. 3.

Detailed Description

Referring to fig. 1 to 4, the pipe system fixing and ash cleaning structure of the vertical garbage furnace economizer comprises a tail flue 1 and an economizer pipe 2, wherein the economizer pipe 2 is provided with a pipe clamp 3, the upper end of the pipe clamp 3 is connected with an economizer guard plate 4 through a connecting plate, the rear end of the tail flue 1 is provided with a soot blower 5, the economizer pipe 2 is provided with an installation space area 6 of the soot blower, and the outlet end face of the soot blower 5 is a downward inclined face, so that the blowing air coming out of the blowing pipe inclines downwards, and a larger blowing surface can be obtained.

The connecting plate is including welding in the diaphragm 8 of the horizontal plate 8 of the one row of riser 7 of afterbody flue 1 inner wall and all risers 7 of connection, and pipe clamp 3 upper end welded fastening is in horizontal plate 8. The face department of being connected of riser 7 and diaphragm 8 is provided with acute angle weld zone 9, and the welding seam setting of riser 7 and diaphragm 8 is here, realization welding that can be better. The vertical plate 7 and the transverse plate 8 are both made of steel plates.

Three soot blowers 5 are arranged at the same height of the tail flue 1 side by side at intervals, so that a better blowing effect can be obtained.

When the boiler is designed, the soot blower is arranged behind the boiler, the blowing surface is larger, and soot is not easy to accumulate during the operation of the boiler so as to influence the heat exchange effect; meanwhile, the installation and the manufacture of the steel plate are simpler and easier than those of a beam;

when the boiler operates, because the ventilation beam which traverses above the piping system is cancelled, the smoke circulation in the flue is not blocked, and the local vortex which corrodes the pipe can not be formed, meanwhile, the overhaul and the replacement caused by the corrosion of the ventilation beam by the smoke are avoided, and the service life of the economizer is prolonged;

when the boiler overhauls, only need replace the steel sheet, compare with changing the roof beam, both convenient operation can reduce the cost of overhaul again.

Claims (4)

1. The utility model provides a vertical garbage furnace economizer piping is fixed and deashing structure, its includes afterbody flue and economizer pipe, its characterized in that, install the pipe clamp on the economizer pipe, the economizer backplate is connected through the connecting plate in the pipe clamp upper end, install the soot blower on the afterbody flue rear end, economizer pipe department leaves the installation dead zone of soot blower, the soot blower's soot blower pipe outlet end face is the inclined plane down.

2. The vertical waste furnace economizer piping fixing and ash removing structure as claimed in claim 1, wherein the connecting plate comprises a row of vertical plates welded to the inner wall of the tail flue and a transverse plate connecting all the vertical plates, and the upper ends of the pipe clamps are welded and fixed to the transverse plate.

3. The vertical waste furnace economizer piping fixing and ash removing structure as claimed in claim 2, wherein an acute angle welding zone is provided at the connecting surface of the vertical plate and the transverse plate.

4. The vertical waste furnace economizer pipe system fixing and ash removing structure as claimed in claim 1, wherein three soot blowers are arranged at the same height of the tail flue side by side at intervals.

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