CN216203418U

CN216203418U - Shock wave diffusion device for water-cooled wall deashing

Info

Publication number: CN216203418U
Application number: CN202122323121.8U
Authority: CN
Inventors: 蒋志坚; 潘鸿杰; 罗晖; 赵伟强
Original assignee: Jiangsu Taihu Boiler Co Ltd
Current assignee: Jiangsu Taihu Boiler Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-05
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a shock wave diffusion device for water-cooled wall ash removal, and aims to provide a shock wave diffusion device for water-cooled wall ash removal, which can effectively solve the problem of ash deposition on the inner wall of a boiler.

Description

Shock wave diffusion device for water-cooled wall deashing

Technical Field

The utility model relates to the field of boiler inner wall ash removal equipment, in particular to a shock wave diffusion device for water-cooled wall ash removal.

Background

During the production and operation of the boiler, the surfaces of the heating surface, namely a water-cooled wall, a superheater, an economizer, a preheater, a flue and the like, are deposited with ash and slag, which are long-term troubles for production and are difficult to solve. The boiler not only weakens the heat transfer of the heating surface of the boiler, causes the heat efficiency of the boiler to be reduced, reduces the production load, but also can cause the accidental shutdown when the dust accumulation and the slag bonding on the heating surface are serious, and causes great economic loss. Therefore, new technologies must be found for removing the ash on the heating surface of the boiler and preventing the slagging, and the low-frequency sound wave ash removal technology for the boiler is firstly discovered by Swedish in the 70 s, so that a new way is opened for removing the ash of the boiler, the boiler is widely applied, and good effects are obtained.

At present, chinese patent publication No. CN205245196U discloses a pulse shock wave soot blower, which includes a pressure flow controller, a mixed gas ignition device and a pulse tank connected in sequence. In this novel device, combustible gas forms the mist with combustion-supporting gas by the blender after the proportion allotment, and the mist is carried to the pulse jar for the pulse shock wave, and the mist is lighted to some firearm, forms the pulse shock wave in the pulse jar for the pulse shock wave.

Although the pulse shock wave soot blower can be used for surface soot blowing of a heat exchange tube bundle of a boiler or a heating furnace, a spray pipe of the existing shock wave soot blower usually penetrates through a water-cooled wall or a furnace wall, and a spray opening points to a convection tube bundle in the furnace, so that the pulse shock wave soot blower is used for removing soot on the convection tube bundle in the furnace, and has a small effect on ash removal on the water-cooled wall or the furnace wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shock wave diffusion device for cleaning ash on a water-cooled wall, which has the advantages that the deposited ash on the water-cooled wall or a furnace wall at the radial periphery of a nozzle can be removed, the application range of a shock wave soot blower is expanded, meanwhile, the deposited ash which is difficult to remove on the inner side of the water-cooled wall or the furnace wall is removed, and the heat exchange effect of the water-cooled wall is improved.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a shock wave diffusion equipment for water-cooling wall deashing, includes the gas pipe and is located the boiler wall that the gas pipe top was equipped with, the gas pipe top still is equipped with shock wave soot blower spout, the gas pipe top still is equipped with the device that scatters, the device that scatters includes the connecting plate with gas pipe inner wall fixed connection and is located the cavity form diffusion dish that the connecting plate top was equipped with, the diffusion dish is close to gas pipe one side and still is equipped with round platform type air inlet, the diffusion dish is equipped with the blow vent all around, diffusion dish center department still is equipped with solid fixed ring, gu the intercommunication is equipped with the elasticity steel pipe on the fixed ring, elasticity steel pipe export is connected through fixing device with the diffusion dish.

Through adopting above-mentioned technical scheme, the diffusion dish that is equipped with can be effectual sprays to the diffusion dish after the shock wave soot blower spout through the high-pressure gas that the gas pipe brought, and the round platform type air inlet in the middle of the diffusion dish will rush into in the high-pressure gas diffuses to elastic steel pipe all around, and elastic steel pipe is because both ends are fixed, therefore the gas passes through elastic steel pipe blowout, thereby on the one hand along spout axial flow change to perpendicular spout axial radial flow, the deposition on water-cooling wall or the furnace wall can also clear away on every side, the application range of shock wave soot blower has been enlarged, thereby simultaneously because the effect of elastic steel pipe will receive the impact of high-pressure gas and produce the wrench movement and bring certain vibrations, thereby the deposition that follows rather drops more easily.

Further setting: the elastic steel pipe is provided with a vibrating device, and the vibrating device comprises a plurality of stainless steel bars arranged on the elastic steel pipe, a sliding groove arranged on the diffusion disc and used for inserting the stainless steel bars, and a stainless steel sheet arranged at the top end of the sliding groove and penetrating through the diffusion disc.

Through adopting above-mentioned technical scheme, the vibrating device that is equipped with can be effectual produce its wrench movement that the in-process of wrench movement is at the elastic steel pipe and have certain law, receive the whole range of vibrations of effect control of stainless steel stick, reduce the possibility that produces negative effects, the stainless steel sheet that is equipped with simultaneously can be effectual with the vibration energy transmission of elastic steel pipe to gas pipe and boiler inner wall on, produce the vibration and reduce piling up of dust.

Further setting: the bottom of the stainless steel sheet is provided with a buffer block.

Through adopting above-mentioned technical scheme, the buffer block that is equipped with can effectually avoid, by the condition that the striking produced the spark between the metal.

Further setting: and the inner wall of the boiler wall is also provided with an impact groove for placing the buffer block.

Through adopting above-mentioned technical scheme, the striking groove that is equipped with can effectual increase striking effect to produce the vibration.

Further setting: the connecting plate is a strip-shaped connecting plate.

Through adopting above-mentioned technical scheme, the bar connecting plate that is equipped with can be effectual disperses the high-pressure gas who takes out to increase the impact of each direction to the boiler wall, thereby clear away the dust on the boiler wall.

Further setting: the connecting plate is provided with a plurality of sliding plates of inclined diffusion discs.

By adopting the technical scheme, the air flow can be conveniently changed in direction.

Further setting: fixing device is equipped with the fixing bolt that runs through the diffusion dish including being located the butt joint mouth that the elastic steel pipe export was equipped with, being located the fixed slot that is equipped with on the butt joint mouth, being located the blow vent edge and being equipped with the fixed hoop that matches with the fixed slot and being located fixed hoop both sides.

Through adopting above-mentioned technical scheme, can effectual help elastic steel pipe fix to the vibration of effectual assurance elastic steel pipe.

In conclusion, the utility model has the following beneficial effects: the shock wave soot blower has the advantages that the shock wave diffusion disc is arranged in the shock wave flow direction outside the nozzle of the shock wave soot blower, the elastic steel pipe channel is reserved between the diffusion disc and the nozzle, and meanwhile, the diffusion disc and the annular channel have the guiding effect of enabling the axial flow of the nozzle to be changed into the axial radial flow of the vertical nozzle, so that the application range of the shock wave soot blower is enlarged, meanwhile, accumulated ash which is not easy to remove on the inner side of a water wall or a furnace wall furnace can be removed, and the heat exchange effect of the water wall is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of a shock wave diffusing device for water wall ash removal;

FIG. 2 is an enlarged schematic structural view of the A position in the drawing of the shock wave diffusing device for water wall ash removal.

In the figure, 1, a gas pipe; 2. a boiler wall; 3. a shock wave soot blower nozzle; 4. a spraying device; 41. a connecting plate; 42. a diffusion disc; 43. a truncated cone shaped air inlet; 44. a vent; 45. a fixing ring; 46. an elastic steel pipe; 5. a vibrating device; 51. a stainless steel rod; 52. a chute; 53. a stainless steel sheet; 6. a buffer block; 7. an impact groove; 8. a slide plate; 9. a fixing device; 91. a butt joint port; 92. fixing grooves; 93. a fixing hoop; 94. and (5) fixing the bolt.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

The technical scheme adopted by the utility model is as follows: a shock wave diffusion device for water wall ash removal is disclosed, as shown in figure 1 and figure 2, comprising a gas pipe 1 and a boiler wall 2 arranged at the top end of the gas pipe 1, a shock wave soot blower nozzle 3 is arranged at the outlet at the top end of the gas pipe 1, a spraying device 4 is arranged at the top end of the gas pipe 1, the spraying device 4 comprises a connecting plate 41 fixedly connected with the inner wall of the gas pipe 1, the connecting plate 41 is a strip-shaped connecting plate 41, a plurality of sliding plates 8 inclined diffusion discs 42 are arranged on the connecting plate 41, hollow diffusion discs 42 are arranged at the top end of the connecting plate 41, a circular truncated cone-shaped air inlet 43 is arranged at one side of the diffusion discs 42 close to the gas pipe 1, air vents 44 are arranged at the periphery of the diffusion discs 42, a fixing ring 45 is arranged at the center of the diffusion discs 42, an elastic steel pipe 46 is communicated with the fixing ring 45, the outlet of the elastic steel pipe 46 is connected with the diffusion discs 42 through a fixing device 9, the fixing device 9 comprises a butt joint 91 arranged at the outlet of the elastic steel pipe 46, fixing grooves 92 are formed in the abutting port 91, fixing hoops 93 matched with the fixing grooves 92 are formed in the edges of the air vents 44, and fixing bolts 94 penetrating through the diffusion disc 42 are arranged on two sides of each fixing hoop 93, so that two ends of the whole elastic steel pipe 46 can be fixed conveniently.

Be equipped with vibrating device 5 on elastic steel pipe 46, vibrating device 5 is including being located a plurality of stainless steel bars 51 that are equipped with on elastic steel pipe 46, be equipped with the spout 52 that inserts stainless steel bar 51 on diffusion dish 42, and the stainless steel sheet 53 of diffusion dish 42 is run through on spout 52 top, stainless steel sheet 53 bottom is equipped with buffer block 6, still be equipped with the striking groove 7 that is used for putting into buffer block 6 on the boiler wall 2 inner wall simultaneously, thereby make elastic steel pipe 46's transmission will drive the vibration of stainless steel sheet 53 and make the deposition on the boiler wall 2 clear away.

The main working principle is as follows:

high-pressure gas shock waves generated by the shock wave soot blower are ejected through the nozzles and are blocked and limited by the diffusion disc 42 which is opposite to the nozzles, the shock waves change directions, one part of the shock waves are scattered out of the strip-shaped connecting plates 41, the other part of the shock waves enter the diffusion disc 42 and are scattered and diffused to the periphery through the elastic steel tube 46 to wash the peripheral area of the inner side of the water wall or the furnace wall furnace which takes the center of the nozzles as the center of the nozzles, meanwhile, when the gas enters the elastic steel tube 46, the vibration device 5 arranged on the elastic steel tube 46 can lead the two sides of the elastic steel tube 46 to be fixed, so that the elastic steel tube 46 is twisted under the action of the gravity of the gas and the body, the stainless steel rod 51 arranged on one side of the elastic steel tube 46 slides in the chute 52 to drive the buffer block 6 at the bottom of the stainless steel sheet 53 to knock the impact groove 7 of the pot body, thereby further leading the ash adhered to the inner side of the water wall or the furnace wall to fall off by the high-pressure gas washing, so as to achieve the function of cleaning the dust accumulated on the inner side of the furnace of the water-cooled wall (or the furnace wall).

The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a water-cooling wall is shock wave diffusion equipment for deashing, includes gas pipe (1) and is located boiler wall (2) that gas pipe (1) top was equipped with, gas pipe (1) top still is equipped with shock wave soot blower spout (3), its characterized in that: gas pipe (1) top still is equipped with and spouts device (4), it includes connecting plate (41) with gas pipe (1) inner wall fixed connection and lies in cavity form diffusion dish (42) that connecting plate (41) top was equipped with to spout device (4), diffusion dish (42) are close to gas pipe (1) one side and still are equipped with round platform type air inlet (43), diffusion dish (42) are equipped with blow vent (44) all around, diffusion dish (42) center department still is equipped with solid fixed ring (45), the intercommunication is equipped with elasticity steel pipe (46) on solid fixed ring (45), elasticity steel pipe (46) export is connected through fixing device (9) with diffusion dish (42).

2. The shock wave diffusion device for deashing of the water wall according to claim 1, characterized in that: be equipped with vibrating device (5) on elastic steel pipe (46), vibrating device (5) are equipped with spout (52) that insert stainless steel stick (51) and lie in spout (52) top and run through diffusion dish (42) to stainless steel sheet (53) of boiler wall (2) including being located a plurality of stainless steel sticks (51) that are equipped with on elastic steel pipe (46), being located diffusion dish (42).

3. The shock wave diffusion device for deashing of the water wall according to claim 2, characterized in that: the bottom of the stainless steel sheet (53) is provided with a buffer block (6).

4. The shock wave diffusion device for deashing of the water wall is characterized in that: and the inner wall of the boiler wall (2) is also provided with an impact groove (7) for placing the buffer block (6).

5. The shock wave diffusion device for deashing of the water wall is characterized in that: the connecting plate (41) is a strip-shaped connecting plate (41).

6. The shock wave diffusion device for deashing of the water wall is characterized in that: the connecting plate (41) is provided with a plurality of sliding plates (8) of inclined diffusion discs (42).

7. The shock wave diffusion device for deashing of the water wall is characterized in that: fixing device (9) are equipped with including being located elasticity steel pipe (46) export butt joint mouth (91), being located fixed slot (92) that are equipped with on butt joint mouth (91), being located blow vent (44) edge and being equipped with fixed hoop (93) that match with fixed slot (92) and being located fixed hoop (93) both sides and being equipped with fixing bolt (94) that run through diffusion dish (42).