Spray head for hydraulic ash removal

Abstract

The invention discloses a spray head for hydraulic ash removal, and belongs to the technical field of hearth cleaning devices. The spray head for hydraulic ash removal comprises a spray head body connected with a spray pipe, the spray head body comprises a barrel and a spray nozzle rotationally connected to the end of the barrel, a plurality of nozzles are obliquely formed in the spray nozzle, a driving part used for driving the spray nozzle to rotate is arranged in the barrel, the driving part comprises an impeller, a rotating shaft and a connecting barrel, and the impeller is arranged in the connecting barrel. The impeller is arranged in the barrel, the peripheral side of the impeller is rotationally connected with the inner side wall of the barrel, one end of the rotating shaft is horizontally and fixedly inserted into the middle of the impeller, and the other end of the rotating shaft is connected with the connecting barrel. The impeller drives the nozzle to rotate through the rotating shaft, high-pressure water flow is sprayed out through a plurality of spouts formed in the nozzle, water flow in the evaporation pipe is cleaned through the rotating high-pressure water flow column, and use is convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of furnace cleaning device, in particular to a water jet for water cleaning. BACKGROUND

[0002] During normal operation of a waste incineration power plant, a large amount of dust will be generated and flow along the flue gas to adhere to the heated surface of the three flue evaporative tube bundle, causing the heat conduction performance to decrease, thereby causing the boiler performance to decrease, and it is necessary to clean the accumulated ash regularly during operation to ensure the economic and stable operation of the boiler. When the three flue gas is running, the lower flue gas temperature is about 700-770℃, and the upper flue gas temperature is about 580-640℃. The temperature is high, and the cleaning difficulty is great.

[0003] The water cleaning device is used to clean the evaporative tube bundle by using the explosion wave generated when water suddenly contacts high-temperature dust and the tube bundle.

[0004] The traditional water cleaning nozzle usually uses a high-pressure atomizing nozzle, and the state of the water sprayed out is similar to that of a shower type water droplet. However, because the temperature of the flue gas in the evaporative tube is high, most of the water droplets evaporate before reaching the heated surface after contacting the high-temperature flue gas, and the cleaning effect is poor. SUMMARY

[0005] The purpose of the present application is to overcome the problems in the prior art and provide a water jet for water cleaning, which can clean the dust in the evaporative tube.

[0006] The present application provides a water jet for water cleaning, which comprises a nozzle body connected with a spray pipe, the nozzle body comprises a cylinder and a nozzle rotatably connected to the end of the cylinder, a plurality of nozzles are inclinedly arranged on the nozzle, a driving member for driving the nozzle to rotate is arranged in the cylinder, the driving member comprises an impeller, a rotating shaft and a connecting cylinder, the impeller is arranged in the cylinder, the impeller is rotatably connected with the inner side wall of the cylinder, one end of the rotating shaft is fixedly inserted into the middle part of the impeller, and the other end is connected with the connecting cylinder.

[0007] Preferably, a bearing support frame is arranged in the cylinder, the bearing support frame comprises a connecting block and a pair of inclined connecting rods, one end of the rotating shaft is fixedly inserted into the connecting block, one end of each of the pair of connecting rods is fixedly connected with the connecting block, and the other end is fixedly connected with the inner part of the cylinder, and one end of the connecting cylinder is fixedly connected with the connecting rods.

[0008] Preferably, a weight tube is arranged between the impeller and the nozzle, and the weight tube is arranged as a solid tube fixedly sleeved on the rotating shaft.

[0009] Preferably, the load-bearing tube is arranged as a tapered tube, the inner diameter of the load-bearing tube gradually decreases away from the impeller, and a gap exists between the load-bearing tube and the inner wall of the cylinder.

[0010] Preferably, the six nozzles are arranged in an array along the circumference of the nozzle.

[0011] Preferably, the impeller comprises a rotating ring, a support block and a plurality of blades, one end of the rotating shaft is fixedly connected with the support block, the plurality of blades are arranged in an array along the circumference of the support block, the rotating ring is fixedly sleeved outside the plurality of blades, and the cylinder is internally provided with an annular rotating groove, and the rotating ring is arranged in the rotating groove and rotationally connected with the inner side wall of the cylinder.

[0012] Preferably, the plurality of blades are all arranged as arcs, and the directions of the arcs are consistent.

[0013] Preferably, the cylinder is threadedly sleeved with an upper end cover at an end away from the nozzle, and the cylinder is threadedly connected with a lower end cover at an end close to the nozzle.

[0014] Preferably, a bearing is arranged between the connecting cylinder and the lower end cover.

[0015] Preferably, a sealing gasket is sleeved outside the bearing.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: the nozzle for hydraulic ash removal is connected with a high-pressure water pipe in use, high-pressure water flows into the cylinder through the water pipe and impacts the impeller arranged in the cylinder, the impeller rotates under the impact of the high-pressure water flow because the impeller is rotationally connected with the inner wall of the cylinder, the rotating shaft drives the nozzle to rotate together, the high-pressure water flow is sprayed from the nozzles, a high-pressure water column is formed, and an annular water column is formed along with the rotation of the nozzle, thereby deepening the effect of dust treatment in the evaporation pipe, and the design is ingenious in use and has great popularization. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present application.

[0019] Figure 3 It is a schematic diagram of the impeller structure of the present application.

[0020] Figure 4 It is a schematic diagram of the load-bearing tube structure of the present application.

[0021] Explanation of reference numerals in the attached drawings: 1. Nozzle body; 101. Cylinder; 102. Nozzle; 103. Nozzle port; 3. Drive component; 31. Impeller; 311. Rotating ring; 312. Support block; 313. Blade; 32. Rotating shaft; 33. Connecting cylinder; 4. Bearing support frame; 41. Connecting block; 42. Connecting rod; 5. Load-bearing pipe; 6. Upper end cover; 7. Lower end cover; 8. Bearing; 9. Sealing gasket. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-4 To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0023] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0024] This invention provides a water-cooled dust removal nozzle, such as... Figures 1-2 As shown, the nozzle body 1 is connected to the nozzle pipe. The nozzle body 1 includes a cylinder 101 and a nozzle 102 rotatably connected to the end of the cylinder 101. Several nozzles 103 are obliquely arranged on the nozzle 102. The cylinder 101 is provided with a driving component 3 for driving the nozzle 102 to rotate. The driving component 3 includes an impeller 31, a rotating shaft 32 and a connecting cylinder 33. The impeller 31 is disposed in the cylinder 101 and is rotatably connected to the inner side wall of the cylinder 101. One end of the rotating shaft 32 is horizontally fixedly inserted into the middle of the impeller 31, and the other end is connected to the connecting cylinder 33.

[0025] The water conservancy ash blowing nozzle of the present application, when in use, connects the nozzle body 1 with the high-pressure water pipe, the high-pressure water flow enters the cylinder body 101 through the water pipe and impacts the impeller 31 arranged in the cylinder body 101, because the impeller 31 is rotationally connected with the inner wall of the cylinder body 101, the impeller 31 will rotate under the impact of the high-pressure water flow and rotate together with the nozzle 102 arranged through the rotation shaft 32, the high-pressure water flow will be sprayed from the nozzle 102 arranged on the nozzle 103, forming a high-pressure water flow column, and with the rotation of the nozzle 102, an annular water flow column is formed, thereby deepening the effect of dust treatment in the evaporation pipe, the design is ingenious in use and has great popularization.

[0026] In the embodiment, the nozzle body 1 and the internal components thereof are made of high-temperature-resistant materials, such as silicon carbide, stainless steel and the like.

[0027] Preferably, as shown in the figure, the cylinder body 101 is provided with a bearing 8 support frame 4, the bearing 8 support frame 4 includes a connecting block 41 and a pair of inclined connecting rods 42, one end of the rotation shaft 32 is fixedly inserted into the connecting block 41, one end of the pair of connecting rods 42 is fixedly connected with the connecting block 41, and the other end is fixedly connected with the inside of the cylinder body 101, and one end of the connecting cylinder 33 is fixedly connected with the connecting rod 42.

[0028] In the embodiment, the bearing 8 support frame 4 arranged in the cylinder body 101 is supported, the rotation shaft 32 arranged through the connecting block 41 is supported, and the connecting cylinder 33 arranged through the inclined connecting rod 42 is connected, thereby stably connecting the rotation shaft 32 with the nozzle 102 and improving the stability of the nozzle 102 when rotating.

[0029] Preferably, as shown in the figure, the bearing 8 support frame 4 arranged in the cylinder body 101 is supported, the rotation shaft 32 arranged through the connecting block 41 is supported, and the connecting cylinder 33 arranged through the inclined connecting rod 42 is connected, thereby stably connecting the rotation shaft 32 with the nozzle 102 and improving the stability of the nozzle 102 when rotating. Figures 1-2

[0030] In the embodiment, the bearing 8 support frame 4 arranged in the cylinder body 101 is supported, the rotation shaft 32 arranged through the connecting block 41 is supported, and the connecting cylinder 33 arranged through the inclined connecting rod 42 is connected, thereby stably connecting the rotation shaft 32 with the nozzle 102 and improving the stability of the nozzle 102 when rotating. The vibration of the water flow is absorbed and dispersed, the vibration and noise of the equipment during operation are reduced, the working environment is improved, the water flow pressure is stabilized, the occurrence of cavitation phenomenon is reduced, and the damage to the impeller 31 and the nozzle 102 is avoided.

[0031] Preferably, as shown in the figure, the bearing 8 support frame 4 arranged in the cylinder body 101 is supported, the rotation shaft 32 arranged through the connecting block 41 is supported, and the connecting cylinder 33 arranged through the inclined connecting rod 42 is connected, thereby stably connecting the rotation shaft 32 with the nozzle 102 and improving the stability of the nozzle 102 when rotating. Figures 1-4 Preferably, as shown in the figure, the bearing 8 support frame 4 arranged in the cylinder body 101 is supported, the rotation shaft 32 arranged through the connecting block 41 is supported, and the connecting cylinder 33 arranged through the inclined connecting rod 42 is connected, thereby stably connecting the rotation shaft 32 with the nozzle 102 and improving the stability of the nozzle 102 when rotating.​​

[0032] In this embodiment, the load pipe 5 is set as a tapered pipe, and as the inner diameter of the load pipe 5 gradually decreases away from the impeller 31, the water flow can be slowed down and the pressure increased, and the water pressure in the cylinder 101 can be stabilized, preventing the water column from fluctuating due to unstable water pressure in the cylinder 101, which would affect the dust removal work.

[0033] Preferred, such as Figures 1-2 As shown, the nozzle 103 is arranged in an array of 6 along the periphery of the nozzle 102.

[0034] In this embodiment, the present invention uses six nozzles 103. On the one hand, this can evenly distribute the water flow, expand the coverage area, and improve the dust removal or cleaning effect. On the other hand, setting six nozzles 103 can disperse the impact force of the water flow, reduce excessive impact on a single area, and maintain the overall impact force, which is suitable for large-area dust removal. The simultaneous operation of the six nozzles 103 can speed up the dust removal or cleaning speed and improve work efficiency. The multi-nozzle design reduces the risk of blockage of a single nozzle 103. Even if some nozzles 103 are blocked, the other nozzles 103 can still work normally, which helps to balance water pressure, reduce pressure fluctuations, ensure stable spraying, and extend the life of the nozzles 102.

[0035] Preferred, such as Figures 1-3 As shown, the impeller 31 includes a rotating ring 311, a support block 312, and several blades 313. One end of the rotating shaft 32 is fixedly connected to the support block 312. Several blades 313 are arranged in an array along the periphery of the support block 312. The rotating ring 311 is fixedly sleeved on the outside of several blades 313. An annular rotating groove is opened in the cylinder 101. The rotating ring 311 is set in the rotating groove and rotatably connected to the inner wall of the cylinder 101. Several blades 313 are all set in an arc shape, and the arc direction is consistent.

[0036] In this embodiment, the rotating ring 311 is connected to the side wall of the cylinder 101, and one end of the rotating shaft 32 is connected to the support block 312. When the high-pressure water flow enters the cylinder 101, it will impact the blades 313. When the blades 313 are impacted by the water flow, the impeller 31 will rotate, thereby driving the nozzle 102 to rotate through the rotating shaft 32. Then, the water flow will be sprayed out through the nozzles 103 to flush and clean the dust in the evaporation tube. In this application, the blades 313 are all arc-shaped, which can better guide the water flow, reduce turbulence and energy loss, and more effectively convert the kinetic energy of the water flow into impact force.

[0037] Preferred, such as Figures 1-4 As shown, the upper end cap 6 is threaded on the end of the cylinder 101 away from the nozzle 102, and the lower end cap 7 is threaded on the side of the cylinder 101 closer to the nozzle 102.

[0038] In the embodiment, the upper end cover 6 and the lower end cover 7 are both threadedly connected with the barrel 101, so that the nozzle can be disassembled at any time, and the parts inside the nozzle can be cleaned and maintained, thereby prolonging the service life of the nozzle body 1.

[0039] Preferably, as shown in the drawings, a bearing 8 is arranged between the connecting barrel 33 and the lower end cover 7, and a sealing gasket 9 is arranged outside the bearing 8. Figures 1-2

[0040] In the embodiment, the bearing 8 is arranged between the connecting barrel 33 and the lower end cover 7 to facilitate the rotation of the connecting barrel 33, and the sealing gasket 9 is arranged outside the bearing 8 to protect the pressure inside the nozzle body 1, so that the pressure inside the nozzle body 1 does not decrease when the connecting barrel 33 rotates, and the water flow does not leak or the water column sprayed is not unstable.

[0041] The use method of the nozzle for hydraulic ash cleaning according to the present application is as follows: The nozzle body 1 is connected with a high-pressure water pipe, the high-pressure water flow enters the barrel 101 through the water pipe, and the arc-shaped blades 313 are impacted, at this time, the arc-shaped blades 313 convert the energy of the high-pressure water flow, so that the rotating ring 311 rotates inside the barrel 101, and the rotating impeller 31 drives the nozzle 102 arranged on the shaft 32 to rotate through the shaft 32, the high-pressure water flow is sprayed from the nozzle 102, and a high-pressure water column is formed, and an annular water column is formed along with the rotation of the nozzle 102.

[0042] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.​

Claims

1. A sootblowing nozzle for use in a waterwall, characterized in that The utility model provides a nozzle body (1) connected with a spray pipe, the nozzle body (1) includes a barrel (101) and a nozzle (102) rotatably connected to the end of the barrel (101), a plurality of nozzles (103) are obliquely arranged on the nozzle (102), a driving member (3) for driving the nozzle (102) to rotate is arranged in the barrel (101), the driving member (3) includes an impeller (31), a rotating shaft (32) and a connecting barrel (33), the impeller (31) is arranged in the barrel (101), the impeller (31) is rotatably connected to the inner side wall of the barrel (101), one end of the rotating shaft (32) is horizontally fixedly inserted into the middle part of the impeller (31), and the other end is connected with the connecting barrel (33).

2. A soot blowing nozzle according to claim 1, wherein A bearing (8) support frame (4) is arranged in the barrel (101), the bearing (8) support frame (4) includes a connecting block (41) and a pair of obliquely arranged connecting rods (42), one end of the rotating shaft (32) is fixedly inserted into the connecting block (41), one end of the pair of connecting rods (42) is fixedly connected with the connecting block (41), and the other end is fixedly connected with the inside of the barrel (101), and one end of the connecting barrel (33) is fixedly connected with the connecting rod (42).

3. The soot blowing nozzle according to claim 1, wherein A negative load pipe (5) is arranged between the impeller (31) and the nozzle (102), the negative load pipe (5) is arranged as a solid pipe fixedly sleeved on the rotating shaft (32).

4. A soot-cleaning nozzle as claimed in claim 3, characterized in that The negative load pipe (5) is arranged as a tapered pipe, the inner diameter of the negative load pipe (5) gradually decreases away from the impeller (31), and there is a gap between the negative load pipe (5) and the inner wall of the barrel (101).

5. The soot-cleaning nozzle of claim 1, wherein The nozzle (103) is arranged as six nozzles arranged along the circumferential side of the nozzle (102).

6. The soot-cleaning nozzle of claim 1, wherein The impeller (31) includes a rotating ring (311), a support block (312) and a plurality of blades (313), one end of the rotating shaft (32) is fixedly connected with the support block (312), the plurality of blades (313) are arranged in an array along the circumferential side of the support block (312), the rotating ring (311) is fixedly sleeved on the outer side of the plurality of blades (313), an annular rotating groove is formed in the barrel (101), and the rotating ring (311) is arranged in the rotating groove and rotatably connected with the inner side wall of the barrel (101).

7. A soot-cleaning nozzle as claimed in claim 6, characterized in that The plurality of blades (313) are all arranged as arcs, and the directions of the arcs are consistent.

8. The soot-cleaning nozzle of claim 1, wherein An upper end cover (6) is threadedly sleeved on one end of the barrel (101) away from the nozzle (102), and a lower end cover (7) is threadedly connected to one side of the barrel (101) close to the nozzle (102).

9. A soot-cleaning nozzle as claimed in claim 8, characterized in that A bearing (8) is arranged between the connecting barrel (33) and the lower end cover (7).

10. The soot-cleaning nozzle of claim 9, wherein A sealing gasket (9) is sleeved on the outer side of the bearing (8).

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