CN215174986U

CN215174986U - Porous curtain type composite wear-resisting device

Info

Publication number: CN215174986U
Application number: CN202121664907.XU
Authority: CN
Inventors: 朱杰; 韩哲; 陈志军; 陆海飞
Original assignee: Shenyang Jiemai Energy Equipment Co ltd
Current assignee: Shenyang Jiemai Energy Equipment Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-12-14
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a compound wear proof device of porous type curtain-type, including diaphragm and fin, the diaphragm surface runs through and has seted up the through-hole, and diaphragm side surface has seted up the installation circular arc to installation circular arc both ends are located diaphragm side surface and have seted up the limit circular arc, it is provided with the welding convex face to lie in diaphragm side surface between the limit circular arc, the diaphragm is transversely installed on the fin surface, welding convex face and fin welding, and fin fixed surface installs the water-cooled tube. Has the advantages that: the device can effectively prolong the residence time of coal particles in the furnace, reduce the flow velocity of the coal particles, strengthen the internal circulation of the coal particles in the furnace body, lead the dust on the transverse plate to fall down naturally by the porous structure, improve the combustion efficiency of boiler materials, slow down the abrasion degree of the water-cooling wall surface and the heated surface of the boiler, lead the boiler to run safely for a long period, lead the whole heating season to not have unplanned boiler shutdown maintenance, ensure the heating of residents more, and reduce the investment cost and the running energy consumption.

Description

Porous curtain type composite wear-resisting device

Technical Field

The utility model relates to a circulation fluidized bed boiler technical field particularly, relates to compound wear prevention device of porous type curtain formula.

Background

In a circulating fluidized bed boiler, a large amount of solid materials containing fuel, fuel ash, limestone and reaction products thereof in the boiler are in continuous high-speed and high-temperature (the temperature can reach 900-.

The existing anti-abrasion device adopts an anti-abrasion beam and a protective tile at present and carries out metal electric arc spraying every year, so that the anti-abrasion device has limited functions, the pipe is seriously abraded, the pipe is locally replaced for many times and faces the risk of leakage and blowing out at any time, and the anti-abrasion device can be further improved.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a compound wear prevention device of porous type curtain formula, possess the abrasionproof cycle length, heat transfer performance is good, the abrasionproof effect is stable, the advantage that the reliability is high, and then solve the problem among the above-mentioned background art.

(II) technical scheme

For realize above-mentioned abrasionproof cycle length, heat transfer performance good, the stable, the high advantage of reliability of abrasionproof effect, the utility model discloses a concrete technical scheme as follows:

porous type curtain-type compound wear prevention device, including diaphragm and fin, the diaphragm surface runs through and has seted up the through-hole, and diaphragm side surface has seted up the installation circular arc to installation circular arc both ends are located diaphragm side surface and have seted up the limit circular arc, it is provided with the welding convex face to lie in diaphragm side surface between the limit circular arc, the diaphragm transversely is installed on the fin surface, welding convex face and fin welding, and fin fixed surface installs the water-cooled tube, installation circular arc and water-cooled tube outer wall joint, it has the riser to lie in fin surface mounting between the diaphragm.

Furthermore, the surface of the vertical plate is provided with a through groove, a welding surface is arranged on one side of the vertical plate, and the vertical plate is vertically welded with the fins through the welding surface.

Furthermore, the through-hole interval is 15mm, and the through-hole has evenly seted up a plurality ofly.

Further, the thickness of the transverse plate and the thickness of the vertical plate are both 5 mm.

Further, the total width of the installation circular arc and the side circular arcs at two sides is 50 mm.

Furthermore, the transverse plate and the vertical plate are both made of ZG20Cr22Ni10Mn3NRE rare earth nickel alloy wear-resisting plates.

(III) advantageous effects

Compared with the prior art, the utility model provides a compound wear prevention device of porous type curtain formula possesses following beneficial effect:

(1) the utility model adopts the transverse plate, the surface of the transverse plate is provided with a plurality of through holes, the surface of one side of the transverse plate is provided with an installation circular arc and a side circular arc, when in installation, the installation circular arc of one side surface of the transverse plate can be abutted against the pipe wall of the water-cooling pipe, the welding convex surface is welded with the fins, the transverse plate is installed by adopting the fish scale type lap joint, the side circular arc also forms a circular arc channel after being installed, the circular arc channel is matched with the through holes to form a porous structure, the flow direction and the flow velocity of a flow guide material achieve the effect of active wear resistance, the wear resistance effect is more stable, the service life of the water-cooling pipe is prolonged, the wear resistance period is prolonged, meanwhile, the material can naturally drop by the porous structure, the heat transfer is not influenced, in addition, the transverse plate adopts ZG20Cr22Ni10Mn3NRE rare earth nickel alloy wear-resistant plate to replace the traditional wear-resistant beam, the heat conduction performance is higher, thereby the heat conduction efficiency is improved, the device has the advantages that the reliability is higher, the residence time of coal particles in the furnace can be effectively prolonged, the flow velocity of the coal particles is reduced, the internal circulation of the coal particles in the hearth body is strengthened, the transverse plate ash accumulation naturally falls due to the porous structure, the combustion efficiency of boiler materials is improved, the abrasion degree of a water-cooled wall surface and a heated surface of the boiler is reduced, the boiler can safely operate for a long period, the unplanned boiler shutdown maintenance does not occur in the whole heating season, the resident heating is guaranteed, and the investment cost and the operation energy consumption are reduced.

(2) The utility model discloses a riser, the vertical welding of riser is on the surface of the fin, diaphragm and riser form certain contained angle, according to the collision principle, the diaphragm is direct to material flow bounce-back, play to material flow and dredge the guide effect, the riser with by the clearance of fin, contained angle main adjustment adherence commodity circulation concentration and control form "sponge district" or "forbidden stop area", through diaphragm and riser combined action, hit near the flow field of garrulous protection face, reach the abrasionproof effect, can finely tune the heat transfer effect of protected object simultaneously, the logical groove that the riser surface was seted up still can be for the material water conservancy diversion, reduce the friction that the turbulent flow produced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the transverse plate provided by the present invention;

fig. 2 is a schematic structural view of a riser according to the present invention;

fig. 3 is an installation schematic diagram of the multi-hole curtain type composite wear prevention device provided by the present invention.

In the figure:

1. a transverse plate; 2. a vertical plate; 3. installing an arc; 4. an edge arc; 5. welding the convex surface; 6. a through hole; 7. welding a surface; 8. a through groove; 9. a water-cooled tube; 10. and a fin.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to an embodiment of the utility model, a compound wear prevention device of porous type curtain formula is provided.

Referring now to the drawings and the detailed description, as shown in fig. 1-3, a multi-hole curtain type composite anti-abrasion device according to an embodiment of the present invention comprises a cross plate 1 and fins 10, wherein through holes 6 are formed through the surface of the cross plate 1, wherein the distance between the through holes 6 is 15mm, and the through holes 6 are uniformly formed in a plurality, and a mounting arc 3 is formed on one side surface of the cross plate 1, and both ends of the mounting arc 3 are located on one side surface of the cross plate 1 and are provided with side arcs 4, wherein the total width of the mounting arc 3 and the side arcs 4 on both sides is 50mm, a welding convex surface 5 is arranged on one side surface of the cross plate 1 between the side arcs 4, the cross plate 1 is transversely installed on the surface of the fins 10, the welding convex surface 5 is welded to the fins 10, and the surface of the fins 10 is fixedly provided with water cooling tubes 9, the mounting arc 3 is clamped to the outer wall of the water cooling tubes 9, and a riser 2 is arranged on the surface of the fins 10 between the cross plate 1, wherein, the horizontal plate 1 and the vertical plate 2 are both made of ZG20Cr22Ni10Mn3NRE rare earth nickel alloy wear-resistant plates, the water-cooling tube 9 and the fins 10 are of common structures in the field, the surface of the horizontal plate 1 is provided with a plurality of through holes 6, one side surface of the horizontal plate 1 is provided with an installation arc 3 and a side arc 4, when in installation, the installation arc 3 on one side surface of the horizontal plate 1 can be abutted against the tube wall of the water-cooling tube 9 and welding a welding convex surface 5 with the fins 10, the horizontal plate 1 can be installed by fish scale type lap joint between the horizontal plates 1, the side arc 4 also forms an arc channel after being installed, and is matched with the through holes 6 to form a porous structure, and the flow direction and the flow rate of a flow guide material can achieve the effect of active wear resistance, the wear-resistant effect is more stable, the service life of the water-cooling tube 9 is prolonged, the wear-resistant period is prolonged, meanwhile, the material can naturally fall down by the porous structure, the wear-resistant plates are not influenced by the traditional wear-resistant plates replaced by the ZG20Cr22Ni10Mn3NRE rare earth nickel alloy wear-resistant plates, the heat conducting property is higher, thereby the heat conducting efficiency is improved, further the working efficiency is improved, the reliability is higher, the device can effectively prolong the retention time of coal particles in the boiler, reduce the flow velocity of the coal particles, strengthen the internal circulation of the coal particles in the hearth body, the porous structure enables the dust deposited on the transverse plate 1 to naturally fall, the combustion efficiency of boiler materials is improved, the abrasion degree of a water-cooled wall surface and a heated surface of the boiler is reduced, the boiler can safely run for a long period, the unplanned boiler shutdown maintenance does not occur in the whole heating season, the heating of residents is more guaranteed, and the investment cost and the running energy consumption are reduced.

In an embodiment, logical groove 8 has been seted up on 2 surfaces of riser, and 2 one sides of riser are provided with face of weld 7, and riser 2 passes through face of weld 7 and the vertical welding of fin 10, 2 vertical welding of riser are on fin 10 surfaces, diaphragm 1 and riser 2 form certain contained angle, according to the collision principle, diaphragm 1 directly rebounds to the material flow, dredge the guide effect to the material flow, riser 2 with by fin 10's clearance, contained angle main adjustment adherence commodity circulation concentration and control form "sponge district" or "forbidden stop area", through

diaphragm

1 and 2 coactions of riser, hit near the broken protective surface flow field, reach the abrasionproof effect, the heat transfer effect of protected object can finely tune simultaneously, logical groove 8 that 2 surfaces of riser were seted up can also be for the material water conservancy diversion, reduce the friction that the turbulent flow produced.

In one embodiment, the thickness of the transverse plate 1 and the vertical plate 2 is 5mm, so that material residue is reduced, and the material can fall off naturally.

The working principle is as follows:

when the device is installed, the installation circular arc 3 on one side surface of the transverse plate 1 can be abutted against the pipe wall of the water-cooled pipe 9, the welding convex surface 5 is welded with the fins 10, fish scale type lap joint is adopted between the transverse plates 1, the installation of the transverse plate 1 can be completed, the circular arc-shaped channel is also formed after the circular arc 4 is installed, the circular arc-shaped channel is matched with the through hole 6 to form a porous structure, the flow direction and the flow speed of a diversion material can achieve the effect of active abrasion resistance, the abrasion-resistant effect is more stable, the service life of the water-cooled pipe 9 is prolonged, the abrasion-resistant period is prolonged, meanwhile, the material can naturally fall by the porous structure without influencing heat transfer, in addition, the transverse plate 1 adopts a ZG20Cr22Ni10Mn3NRE rare earth nickel alloy abrasion-resistant plate to replace a traditional abrasion-resistant beam, the heat-conducting performance is higher, the heat-conducting efficiency is improved, the working efficiency is further higher, the reliability is higher, the device can effectively prolong the residence time of coal particles in the furnace, and reduce the flow speed of the coal particles, The internal circulation of coal particles in a hearth body is strengthened, the cross plate 1 is deposited ash and naturally falls due to a porous structure, the combustion efficiency of boiler materials is improved, the abrasion degree of a water-cooled wall surface and a heated surface of a boiler is reduced, the boiler can run safely for a long period, the unplanned boiler shutdown maintenance is not required in the whole heating season, the heating of residents is guaranteed, the investment cost and the running energy consumption are reduced, meanwhile, the vertical plates 2 are vertically welded on the surfaces of the fins 10, the cross plate 1 and the vertical plates 2 form a certain included angle, the cross plate 1 directly rebounds the material flow according to the collision principle and plays a role in dredging and guiding the material flow, the gaps and included angles between the vertical plates 2 and the fins 10 are mainly used for adjusting the wall-attached material flow concentration and controlling to form a sponge area or a forbidden shutdown area, the flow field near the protective surface is broken through the combined action of the cross plate 1 and the vertical plates 2, the anti-abrasion effect is achieved, and the heat exchange effect of the protected object can be finely adjusted, the through groove 8 formed in the surface of the vertical plate 2 can also guide materials, and reduce friction generated by turbulent flow.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Porous curtain-type composite wear-resisting device, its characterized in that, including diaphragm (1) and fin (10), diaphragm (1) surface runs through and has seted up through-hole (6), and diaphragm (1) side surface has seted up installation circular arc (3) to installation circular arc (3) both ends are located diaphragm (1) side surface and have seted up limit circular arc (4), it is provided with welding convex surface (5) to lie in diaphragm (1) side surface between limit circular arc (4), diaphragm (1) is transversely installed on fin (10) surface, welding convex surface (5) and fin (10) welding, and fin (10) fixed surface installs water-cooled tube (9), installation circular arc (3) and water-cooled tube (9) outer wall joint, it has riser (2) to lie in fin (10) surface mounting between diaphragm (1).

2. The porous curtain type composite wear prevention device according to claim 1, wherein the surface of the riser (2) is provided with a through groove (8), one side of the riser (2) is provided with a welding surface (7), and the riser (2) is vertically welded with the fin (10) through the welding surface (7).

3. The porous curtain type composite wear prevention device according to claim 1, wherein the distance between the through holes (6) is 15mm, and the through holes (6) are uniformly opened in plurality.

4. Porous curtain composite wear protection according to claim 1, characterized in that the cross plate (1) and the riser (2) are both 5mm thick.

5. Perforated curtain composite wear protection device according to claim 1, characterized in that the total width of the mounting arc (3) and the side arcs (4) on both sides is 50 mm.

6. The porous curtain type composite wear prevention device according to claim 1, characterized in that the horizontal plate (1) and the vertical plate (2) are both made of ZG20Cr22Ni10Mn3NRE rare earth nickel alloy wear plates.