CN214370321U

CN214370321U - Wear-proof device for heating surface of waste heat boiler

Info

Publication number: CN214370321U
Application number: CN202120114333.2U
Authority: CN
Inventors: 杜兴锐; 汪宁; 周瑜; 刘大柱; 吴井波
Original assignee: Anhui Conch Kawasaki Energy Conservation Equipment Manufacturing Co Ltd
Current assignee: Anhui Conch Kawasaki Energy Conservation Equipment Manufacturing Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-10-08
Anticipated expiration: 2031-01-15

Abstract

The utility model provides a waste heat boiler receives hot side wear proof device, belongs to waste heat boiler technical field, and this wear proof device includes the furnace wall, calandria and spoiler, the fixed calandria in middle part of furnace wall, and the mid-mounting of calandria has a plurality of spiral finned tubes, is separated by a section distance between the furnace wall of the left and right sides of calandria and both sides and forms the flue gas corridor respectively, is provided with a plurality of spoilers that prevent the flue gas entering flue gas corridor from top to bottom in the flue gas corridor, and the last end connection department of calandria installs the wear proof tile, the beneficial effects of the utility model are that, this wear proof device overall structure is simple, and the installation is convenient with dismantling, has blocked dusty flue gas and has got into the passageway between receiving hot side and the furnace wall, has reduced dusty flue gas and has received the wearing and tearing of hot side, has prolonged the live time, has reduced the pipe explosion leakage accident, has guaranteed the safe operation of boiler.

Description

Wear-proof device for heating surface of waste heat boiler

Technical Field

The utility model relates to a waste heat boiler technical field especially relates to a waste heat boiler receives hot side wear proof device.

Background

During the operation process of the waste heat boiler, the air volume is sometimes larger during the actual operation, so that the dust content of the flue gas entering the tail end of the waste heat boiler is larger, the dust-containing flue gas can obviously wash the heating surface of the boiler, and the fly ash particles carried by the flue gas impact the metal wall surface of the heating surface to generate impact and cutting action on the metal wall surface, so that the heating surface is abraded. And because the heating surface and the furnace wall are separated by a certain distance, when the flue gas carrying the fly ash particles passes through the heating surface, the pipeline of the heating surface has certain blocking effect on the flue gas, no blocking object is arranged between the heating surface and the furnace wall, the flow velocity of the flue gas is increased, even the flow velocity can reach 3-4 times of the average flue gas velocity in the flue, and the wear rate of the pipeline is dozens of times higher than the average value. Practical operation shows that the leakage accidents of the heating surface caused by uniform wear are few, and most leakage accidents are caused by such local wear.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a waste heat boiler receives hot side wear proof device can block the passageway between dusty flue gas gets into waste heat boiler's the hot side and the brickwork, has reduced dusty flue gas to the pipeline with receive the wearing and tearing of hot side, increase of service time, reduce the pipe explosion leakage accident, can guarantee the safe operation of boiler.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: waste heat boiler receives hot side wear proof device, including brickwork, calandria and spoiler, the middle part of brickwork is fixed the calandria, the mid-mounting of calandria has a plurality of spiral finned tubes, be separated by one section distance between the brickwork of the left and right sides of calandria and both sides and form the flue gas corridor respectively, be provided with a plurality of spoilers that prevent the flue gas from getting into the flue gas corridor in the flue gas corridor from top to bottom, the last end joint department of calandria installs the abrasionproof tile.

Further, the calandria comprises a plurality of coiled pipes, and the plurality of coiled pipes are arranged in a staggered mode.

Furthermore, a plurality of angle steels are arranged on the inner side of the furnace wall at intervals along the height direction of the furnace wall, and the angle steels are in contact with the calandria and the spiral finned tubes through the spoilers.

Further, the one end of the spoiler of calandria left and right sides with the connection can be dismantled to the angle steel, the other end overlap joint of spoiler in the upside of calandria and with the tip of spiral finned tube contacts.

Furthermore, the upper end connector of the rack pipe is bent upwards, the connector of the rack pipe comprises a vertical section and a horizontal section, and the vertical section and the horizontal section are respectively provided with the wear-resistant tile.

Furthermore, the anti-abrasion tile is a semicircular tile, the anti-abrasion tile is clamped on the upper side of the coiled pipe, and two ends of the anti-abrasion tile are fastened and connected with the coiled pipe after being bound by the shroud ring.

Further, the thickness of the anti-abrasion tile is set to be 3-5 mm.

The utility model has the advantages that:

1. the utility model discloses an at exhaust-heat boiler's calandria mid-mounting spiral finned tube has increased heat exchange efficiency, the rate of heat recovery has been improved, can close the passageway in flue gas corridor through installing a plurality of spoilers between the furnace wall of the both sides of calandria and both sides, make dusty flue gas at the uniform velocity pass through the calandria middle part, avoided dusty flue gas to get into flue gas corridor speed and to the serious problem of calandria wearing and tearing, simultaneously at the joint department installation abrasionproof tile of calandria upper end, further reduced dusty flue gas to the wearing and tearing of calandria, the live time of calandria has been prolonged, the explosion tube leakage accident has been reduced, the safe operation of boiler has been guaranteed.

2. The utility model provides a calandria includes a plurality of dislocation arrangement's coiled pipe, has increased heat transfer area, has further improved heat exchange efficiency, and abrasionproof tile wherein is semi-circular tile, and the abrasionproof tile is along the side-mounting of the windward side of calandria, has further reduced the wearing and tearing to the calandria, and the abrasionproof tile passes through the mode of joint and installs the back on the calandria and links to each other with the calandria fastening through the shroud band ligature in addition, makes the installation of abrasionproof tile more firm, and convenient the dismantlement is changed moreover.

In conclusion, the anti-abrasion device is simple in integral structure and convenient to mount and dismount, and blocks dust-containing smoke from entering a channel between the heating surface and the furnace wall, so that the abrasion of the dust-containing smoke to a pipeline and the heating surface is reduced, the service life is prolonged, the pipe explosion leakage accident is reduced, and the safe operation of the boiler is ensured.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

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

the labels in the above figures are: 1. the furnace comprises a furnace wall, 2 parts of calandria, 21 parts of coiled pipes, 3 parts of spoilers, 4 parts of spiral finned pipes, 5 parts of flue gas corridors, 6 parts of anti-abrasion tiles, 7 parts of angle steel and 8 parts of surrounding belts.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in fig. 1, an abrasion-proof device for a heating surface of a waste heat boiler comprises a boiler wall 1, a calandria 2 and spoilers 3, wherein the calandria 2 is fixed in the middle of the boiler wall 1, a plurality of spiral finned tubes 4 are installed on a horizontal section in the middle of the calandria 2, a flue gas corridor 5 is respectively formed between the left side and the right side of the calandria 2 and the boiler walls 1 on the two sides at intervals, a plurality of spoilers 3 for preventing flue gas from entering the flue gas corridor 5 are arranged in the flue gas corridor 5 from top to bottom, dust-containing flue gas can pass through the middle of the calandria 2 at a constant speed, the problem that the speed of the dust-containing flue gas entering the flue gas corridor 5 is increased and the wear of the calandria 2 is serious is avoided, and an abrasion-proof tile 6 is installed at an upper end joint of the calandria 2, so that the wear of the calandria by the dust-containing flue gas is further reduced, the service time of the calandria is prolonged, the pipe leakage accident caused by pipe explosion is reduced, and the safe operation of the boiler is ensured.

Specifically, the calandria 2 therein includes a plurality of coiled pipes 21, and the dislocation arrangement has increased heat transfer area between a plurality of coiled pipes 21, has further improved heat transfer efficiency.

Specifically, 1 inboard its direction of height interval of following of wherein furnace wall is provided with a plurality of angle steel 7, angle steel 7 contacts with calandria 2 and spiral finned tube 4 through spoiler 3, angle steel 7 wherein can dismantle with spoiler 3's one end through the bolt and link to each other, spoiler 3's installation is dismantled conveniently, convenient maintenance, the other end overlap joint of spoiler 3 of the 2 left and right sides of calandria just contacts with spiral finned tube 4's tip at calandria 2's upside, effectively blocked dusty flue gas and got into flue gas corridor 5, the wearing and tearing of dusty flue gas to the calandria have been reduced.

Specifically, the upper end joint of the calandria 2 is bent upwards, the upper end joint of the calandria 2 comprises a vertical section and a horizontal section, the vertical section and the horizontal section are respectively provided with an anti-abrasion tile 6, the anti-abrasion tile 6 is set to be a semicircular tile, the thickness of the anti-abrasion tile 6 is set to be 3-5 mm, the anti-abrasion tile 6 is conveniently and manually clamped on the upper side of the serpentine tube 21, the anti-abrasion tile 6 is installed along the upper side of the upwind direction of the calandria 2, the abrasion on the calandria 2 is further reduced, two ends of the anti-abrasion tile 6 are respectively provided with a through hole, a shroud ring 8 is connected in the through holes in a through way, the anti-abrasion tile 6 is fastened and connected with the serpentine tube 21 after being bound by the shroud ring 8, the shroud ring 8 can be set to be a stainless steel self-locking rolling belt, the stainless steel self-locking belt is provided with a buckle, an inclined locking bin is arranged on the buckle, a movable steel ball is arranged in the locking bin, and the steel ball can be inserted into the binding belt after one end of the binding ring is fastened, the locking and positioning can be completed, the installation of the anti-abrasion tile is firmer, and when the anti-abrasion tile 6 needs to be replaced, the binding belt is cut off, so that the anti-abrasion tile 6 is convenient to disassemble and replace.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. The utility model provides a waste heat boiler receives hot side wear proof device, a serial communication port, including brickwork (1), calandria (2) and spoiler (3), the middle part of brickwork (1) is fixed calandria (2), the mid-mounting of calandria (2) has a plurality of spiral finned tubes (4), be separated by one section distance between the left and right sides of calandria (2) and brickwork (1) of both sides and form flue gas corridor (5) respectively, from top to bottom be provided with a plurality of spoilers (3) that prevent the flue gas entering flue gas corridor (5) in flue gas corridor (5), last end joint department of calandria (2) installs abrasionproof tile (6).

2. The wear prevention device for the heating surface of the waste heat boiler of claim 1, wherein: the calandria (2) comprises a plurality of coiled pipes (21), and the plurality of coiled pipes (21) are arranged in a staggered mode.

3. The wear prevention device for the heating surface of the waste heat boiler of claim 1, wherein: furnace wall (1) inboard is provided with a plurality of angle steel (7) along its direction of height interval, angle steel (7) pass through spoiler (3) with calandria (2) and spiral finned tube (4) contact.

4. The wear prevention device for the heating surface of the waste heat boiler of claim 3, wherein: the one end of the spoiler (3) of the left and right sides of the calandria (2) with the angle steel (7) can be dismantled and connected, the other end of the spoiler (3) is lapped on the upper side of the calandria (2) and is contacted with the end part of the spiral finned tube (4).

5. The wear prevention device for the heating surface of the waste heat boiler of claim 2, wherein: the upper end of the calandria (2) is connected with a connector which is bent upwards, the connector of the calandria (2) comprises a vertical section and a horizontal section, and the vertical section and the horizontal section are respectively provided with the wear-resistant tile (6).

6. The wear prevention device for the heating surface of the waste heat boiler of claim 5, wherein: the anti-abrasion tile (6) is a semicircular tile, the anti-abrasion tile (6) is clamped on the upper side of the coiled pipe (21), and two ends of the anti-abrasion tile (6) are fastened and connected with the coiled pipe (21) after being bound by the shroud ring (8).

7. The wear prevention device for the heating surface of the waste heat boiler of claim 5, wherein: the thickness of the anti-abrasion tile (6) is set to be 3-5 mm.