Two-channel shock wave soot blower

Abstract

The utility model discloses a two-channel shock wave soot blower, which belongs to the field of two channels and comprises a two-channel main body. The device is novel in design and ingenious, the slotted holes and the high-sharing type high-energy fuel gas pulse soot blowers are arranged, the slotted holes are formed in the surfaces of the water cooling walls on the left side and the right side of the two-channel body, the two sets of high-sharing type high-energy fuel gas pulse soot blowers are installed in the slotted holes, and acetylene and compressed air mixed gas is used through the high-sharing type high-energy fuel gas pulse soot blowers; during operation of the boiler, through regular operation every day, a very good dust blowing effect can be achieved, the dust on the surface of the water cooling wall of the two-channel main body is gradually reduced, the water cooling wall can normally absorb heat in the channels, and the heat in the two-channel main body is reduced. And the flue gas temperature at the superheater is directly reduced from the highest to the lowest, so that the safe usability of the superheater tube bundle is guaranteed, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of two-channel technology, and in particular to a two-channel shock wave sootblowing device. Background Art

[0002] The second channel of the boiler is a heating surface composed of water-cooled walls on all sides. The flue gas carries the heat generated by the incineration of garbage through the second channel. The heating surface of the second channel absorbs the heat to heat the water in the water-cooled wall. The second channel of the boiler usually refers to the second channel of the flue gas flow in the boiler combustion system. During the combustion process of the boiler, the flue gas passing through the second channel also carries the dust generated by the incineration of garbage, which sticks to the water-cooled walls on all sides. Over time, it accumulates thicker and thicker to form an insulation layer, which leads to a decrease in the heat absorbed by the water-cooled wall in the flue gas. The temperature of the exhaust flue gas is too high, which reduces the thermal efficiency of the boiler. At the same time, the high exhaust temperature causes corrosion of the superheater tube bundle and reduces its service life. In order to ensure the thermal efficiency of the boiler and improve the service life of the superheater, after theoretical reasoning and research and demonstration of the actual situation of the equipment operation, it was decided to carry out technical transformation, and use the original shock wave soot blowing system to add a shock wave soot blowing device inside the second channel.

[0003] To this end, the present application proposes a two-channel shock wave sootblowing device. Utility Model Content

[0004] The present application proposes a two-channel shock wave sootblowing device to solve the problems raised in the above-mentioned background technology; by setting slots and high-shared high-energy gas pulse sootblower, slots are opened on the water-cooled wall surfaces on the left and right sides of the two-channel main body, and two groups of high-shared high-energy gas pulse sootblower are installed in the slots. The high-shared high-energy gas pulse sootblower uses a mixed gas of acetylene and compressed air to cause instantaneous explosion and vibration in the two-channel main body, thereby vibrating the dust attached to the surface of the water-cooled wall off. During the operation of the boiler, it can achieve a good dust blowing effect by performing regular operations every day. After a period of use tests after the technical transformation is completed, the regular daily sootblowing and the sootblowing at fixed times and points make the dust on the surface of the water-cooled wall of the two-channel main body gradually decrease, and the water-cooled wall can normally absorb the heat in the channel, and directly reduce the flue gas temperature at the superheater from the highest to the lowest, thereby ensuring the safe use of the superheater tube row and greatly improving the practicality of the device.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] A two-channel shock wave sootblowing device comprises a two-channel main body, a smoke inlet is provided inside the two-channel main body, a smoke outlet is provided inside the two-channel main body and located above the smoke inlet, a sootblowing assembly is arranged inside the two-channel main body, the sootblowing assembly comprises a slot, two of the slots are provided inside the two-channel main body, and high-shared high-energy gas pulse sootblower is fixedly connected inside the two slots.

[0007] As a preferred embodiment, a water-cooled wall assembly is arranged inside the two-channel body, the water-cooled wall assembly includes a water-cooled wall surface, the water-cooled wall surface is arranged inside the two-channel body, dust is arranged on the surface of the water-cooled wall surface, a water-cooled wall cavity is arranged inside the two-channel body, and water is arranged inside the water-cooled wall cavity;

[0008] By arranging the water-cooled wall surface and the water-cooled wall cavity in the two-channel body, the dust on the water-cooled wall surface can be removed to increase the water temperature in the water-cooled wall cavity, thereby improving the practicability of the device.

[0009] As a preferred embodiment, a limiting assembly is arranged inside the two-channel body, and the limiting assembly includes a limiting groove, and two limiting grooves are arranged inside the two-channel body, and limiting rods are fixedly connected inside the two limiting grooves;

[0010] By setting the limit rod, when the movable plate slides, the movable plate can be limited to avoid the movable plate from deflecting during movement, thereby improving the stability of the lower dust removal brush and the upper dust removal brush during dust removal, thereby improving the use effect and thus improving the practicability of the device.

[0011] As a preferred embodiment, a telescopic assembly is disposed inside the two limit grooves, and the telescopic assembly includes a telescopic spring. The two telescopic springs are disposed inside the limit grooves and outside the limit rods. The top ends of the two telescopic springs are fixedly connected with movable plates, and the sides of the two movable plates away from the limit grooves extend to the inside of the two channel bodies. The insides of the two movable plates are provided with limit holes, and the two movable plates are slidably connected to the limit rods through the limit holes.

[0012] The gas moves from bottom to top, and under the action of the gas pressure, the movable plate surges upward inside the limit groove, so that the telescopic spring is stretched and deformed, achieving a telescopic effect, thereby improving the practicability of the device.

[0013] As a preferred embodiment, the bottom of the two movable plates and located inside the two channel bodies are fixedly connected with a first dust removal assembly, the first dust removal assembly includes a first mounting plate, the two first mounting plates are fixedly connected to the bottom of the movable plate, the outsides of the two first mounting plates are fixedly connected with lower dust removal brushes, and one side of the two lower dust removal brushes is in contact with the surface of the water-cooled wall;

[0014] Through the setting of the first dust removal component, the lower dust removal brush will move upward synchronously with the movable plate, and the remaining dust on the surface of the water-cooled wall will be secondary dust removed by the lower dust removal brush. Thus, the power of the two-channel main body itself is utilized to achieve a more ideal dust removal effect, improve the use effect, and thus enhance the practicability of the device.

[0015] As a preferred embodiment, the tops of the two movable plates and located inside the two channel bodies are fixedly connected with a second dust removal assembly, the second dust removal assembly includes a second mounting plate, the two second mounting plates are fixedly connected to the tops of the movable plates, the outsides of the two second mounting plates are fixedly connected with upper dust removal brushes, and one side of the two upper dust removal brushes is in contact with the surface of the water-cooled wall;

[0016] By setting up the second dust removal component, the second mounting plate moves upward synchronously driven by the movable plate, and while moving, the upper dust removal brush performs preliminary dust removal operations on the surface of the water-cooled wall, thereby improving the practicability of the device.

[0017] Beneficial effects of this application:

[0018] 1. The two-channel shock wave sootblowing device is provided with slots and high-shared high-energy gas pulse sootblower, slots are opened on the water-cooled wall surfaces on the left and right sides of the two-channel body, and two sets of high-shared high-energy gas pulse sootblower are installed in the slots. The high-shared high-energy gas pulse sootblower uses acetylene and compressed air mixed gas to cause instantaneous explosion and vibration in the two-channel body, thereby vibrating the dust attached to the surface of the water-cooled wall. During the operation of the boiler, it can achieve a good dust blowing effect by performing regular operations every day. After a period of use test after the completion of the technical transformation, the regular daily sootblowing and the sootblowing at fixed times and points gradually reduce the dust on the surface of the water-cooled wall of the two-channel body, and the water-cooled wall can absorb the heat in the channel normally, directly reducing the flue gas temperature at the superheater from the highest to the lowest, thereby ensuring the safe use of the superheater tube row and greatly improving the practicality of the device.

[0019] 2. This two-channel shock wave soot blowing device is provided with a lower dust removal brush and an upper dust removal brush. The second mounting plate moves upward synchronously driven by the movable plate. While moving, the upper dust removal brush performs preliminary dust removal operation on the surface of the water-cooled wall. At the same time, the lower dust removal brush moves upward synchronously with the movable plate, and the lower dust removal brush performs secondary dust removal on the remaining dust on the surface of the water-cooled wall. Thus, a more ideal dust removal effect is achieved by utilizing the power of the two-channel main body itself, thereby improving the use effect and greatly enhancing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the interior of the device of the present application;

[0021] Figure 2 Schematic diagram of the first dust removal component and the second dust removal component of the device of the present application;

[0022] Figure 3 This is a schematic diagram of the sootblowing assembly of the device of the present application.

[0023] Numbers in the figure: 1. Two-channel main body; 2. Smoke inlet; 3. Smoke outlet; 4. Water-cooled wall assembly; 41. Water-cooled wall surface; 42. Dust; 43. Water-cooled wall cavity; 44. Water body; 5. Sootblowing assembly; 51. Slot hole; 52. High-sharing high-energy gas pulse sootblower; 6. Limit assembly; 61. Limit slot; 62. Limit rod; 7. Telescopic assembly; 71. Telescopic spring; 72. Movable plate; 73. Limit hole; 8. First dust removal assembly; 81. First mounting plate; 82. Lower dust removal brush; 9. Second dust removal assembly; 91. Second mounting plate; 92. Upper dust removal brush. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0025] Reference Figure 1-3 A two-channel shock wave sootblower device comprises a two-channel body 1, a smoke inlet 2 is provided inside the two-channel body 1, and a smoke outlet 3 is provided inside the two-channel body 1 and above the smoke inlet 2.

[0026] A sootblowing assembly 5 is arranged inside the two-channel body 1, and the sootblowing assembly 5 includes a slot 51, two slots 51 are opened inside the two-channel body 1, and high-shared high-energy gas pulse sootblower 52 is fixedly connected inside the two slots 51; by opening slots 51 on the water-cooled wall surface 41 on the left and right sides of the two-channel body 1, two sets of high-shared high-energy gas pulse sootblower 52 are installed in the slots 51, and acetylene and compressed air mixed gas is used by the high-shared high-energy gas pulse sootblower 52 to instantly burn and explode in the two-channel body 1. Vibration is generated, thereby vibrating off the dust stuck on the water-cooled wall surface 41. During the operation of the boiler, regular daily operations can achieve a good dust blowing effect. After a period of use test after the completion of the technical transformation, regular daily soot blowing and soot blowing at fixed times and points can gradually reduce the dust accumulation on the water-cooled wall surface 41 of the second channel main body 1. The water-cooled wall can normally absorb the heat in the channel, and directly reduce the flue gas temperature at the superheater from the highest 680°C to about 600°C, which greatly ensures the safe use of the superheater tube row.

[0027] A water-cooled wall assembly 4 is arranged inside the two-channel body 1, and the water-cooled wall assembly 4 includes a water-cooled wall surface 41. The water-cooled wall surface 41 is arranged inside the two-channel body 1, and dust 42 is arranged on the surface of the water-cooled wall surface 41. A water-cooled wall cavity 43 is arranged inside the two-channel body 1, and a water body 44 is arranged inside the water-cooled wall cavity 43. By arranging the water-cooled wall surface 41 and the water-cooled wall cavity 43 in the two-channel body 1, the dust 42 on the water-cooled wall surface 41 can be removed to increase the water temperature of the water-cooled wall cavity 43.

[0028] A limiting component 6 is arranged inside the two-channel main body 1, and the limiting component 6 includes a limiting groove 61. The two limiting grooves 61 are both arranged inside the two-channel main body 1, and the insides of the two limiting grooves 61 are fixedly connected to the limiting rods 62; the setting of the limiting rods 62 can limit the movable plate 72 when the movable plate 72 slides, so as to avoid the movable plate 72 from deviating during the movement process, thereby improving the stability of the lower dust removal brush 82 and the upper dust removal brush 92 during dust removal, thereby improving the use effect.

[0029] A telescopic assembly 7 is provided inside the two limit grooves 61, and the telescopic assembly 7 includes a telescopic spring 71. The two telescopic springs 71 are arranged inside the limit grooves 61 and outside the limit rod 62. The top ends of the two telescopic springs 71 are fixedly connected with movable plates 72, and the two movable plates 72 extend to the inside of the second channel body 1 on the side away from the limit grooves 61. Limiting holes 73 are provided inside the two movable plates 72, and the two movable plates 72 are slidably connected to the limit rod 62 through the limiting holes 73; when smoke enters through the smoke inlet 2 in the second channel body 1, the gas flows from bottom to top, and under the action of the gas pressure, the movable plate 72 surges upward inside the limit groove 61, so that the telescopic spring 71 is stretched and deformed, thereby achieving a telescopic effect.

[0030] The bottom of the two movable plates 72 and located inside the two channel main bodies 1 are fixedly connected with the first dust removal assembly 8, and the first dust removal assembly 8 includes a first mounting plate 81, and the two first mounting plates 81 are fixedly connected to the bottom of the movable plate 72, and the outsides of the two first mounting plates 81 are fixedly connected with lower dust removal brushes 82, and one side of the two lower dust removal brushes 82 are in contact with the water-cooled wall surface 41; through the setting of the first dust removal assembly 8, the lower dust removal brush 82 will move upward synchronously with the movable plate 72, and the remaining dust 42 on the water-cooled wall surface 41 will be subjected to secondary dust removal through the lower dust removal brush 82, thereby utilizing the power of the two channel main bodies 1 themselves to achieve a more ideal dust removal effect and improve the use effect.

[0031] A second dust removal assembly 9 is fixedly connected to the top of the two movable plates 72 and located inside the two channel main bodies 1. The second dust removal assembly 9 includes a second mounting plate 91. The two second mounting plates 91 are fixedly connected to the top of the movable plate 72. The outsides of the two second mounting plates 91 are fixedly connected to upper dust removal brushes 92, and one side of the two upper dust removal brushes 92 is in contact with the water-cooled wall surface 41. Through the setting of the second dust removal assembly 9, the second mounting plate 91 moves upward synchronously driven by the movable plate 72, and while moving, the dust 42 on the water-cooled wall surface 41 will be initially dusted through the upper dust removal brush 92.

[0032] Working principle: When the device is used, slots 51 are opened on the water-cooled wall surfaces 41 on the left and right sides of the two-channel main body 1, and two sets of high-sharing high-energy gas pulse soot blowers 52 are installed in the slots 51. The high-sharing high-energy gas pulse soot blowers 52 use a mixed gas of acetylene and compressed air to cause an instantaneous explosion in the two-channel main body 1 to produce vibration, thereby vibrating the dust attached to the water-cooled wall surface 41. During the operation of the boiler, regular daily operations can achieve a good dust blowing effect. After a period of use tests after the technical transformation is completed, regular daily soot blowing and soot blowing at fixed times and points can gradually reduce the dust accumulation on the water-cooled wall surface 41 of the two-channel main body 1. The water-cooled wall can normally absorb the heat in the channel, and directly reduce the flue gas temperature at the superheater from the highest 680°C to about 600°C, greatly ensuring the safe use of the superheater tube row.

[0033] When the smoke enters through the smoke inlet 2 in the second channel body 1, the gas flows from bottom to top. Under the action of the gas pressure, the movable plate 72 surges upward inside the limiting groove 61, causing the telescopic spring 71 to be stretched and deformed. At this time, through the setting of the second dust removal component 9, the second mounting plate 91 moves upward synchronously under the drive of the movable plate 72. While moving, the dust 42 on the water-cooled wall surface 41 is initially removed by the upper dust removal brush 92. At the same time, through the setting of the first dust removal component 8, the lower dust removal brush 92 is used to remove the dust 42 on the water-cooled wall surface 41. The brush 82 will move upward synchronously with the movable plate 72, and the remaining dust 42 on the water-cooled wall surface 41 will be subjected to secondary dust removal through the lower dust removal brush 82. Thus, the power within the two-channel main body 1 is utilized to achieve a more ideal dust removal effect and improve the use effect. Through the setting of the limit rod 62, when the movable plate 72 slides, the movable plate 72 can be limited to avoid the movable plate 72 from deviating during its movement, thereby improving the stability of the lower dust removal brush 82 and the upper dust removal brush 92 during dust removal, thereby improving the use effect.

[0034] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A two-channel shock wave sootblowing device, comprising a two-channel body (1), characterized in that: A smoke inlet (2) is provided inside the two-channel body (1), a smoke outlet (3) is provided inside the two-channel body (1) and located above the smoke inlet (2), a soot blowing assembly (5) is provided inside the two-channel body (1), the soot blowing assembly (5) comprises a slot (51), two slots (51) are provided inside the two-channel body (1), and high-sharing high-energy gas pulse soot blowers (52) are fixedly connected inside the two slots (51).

2. A two-channel shock wave sootblowing device according to claim 1, characterized in that: A water-cooled wall assembly (4) is arranged inside the two-channel body (1), the water-cooled wall assembly (4) comprises a water-cooled wall surface (41), the water-cooled wall surface (41) is arranged inside the two-channel body (1), dust (42) is arranged on the surface of the water-cooled wall surface (41), a water-cooled wall cavity (43) is arranged inside the two-channel body (1), and a water body (44) is arranged inside the water-cooled wall cavity (43).

3. A two-channel shock wave sootblowing device according to claim 1, characterized in that: A limit assembly (6) is arranged inside the two-channel body (1), and the limit assembly (6) comprises a limit groove (61). The two limit grooves (61) are arranged inside the two-channel body (1), and the insides of the two limit grooves (61) are fixedly connected to limit rods (62).

4. A two-channel shock wave sootblowing device according to claim 3, characterized in that: A telescopic assembly (7) is disposed inside the two limiting grooves (61), and the telescopic assembly (7) includes a telescopic spring (71). The two telescopic springs (71) are disposed inside the limiting grooves (61) and outside the limiting rod (62). The top ends of the two telescopic springs (71) are fixedly connected to a movable plate (72), and the sides of the two movable plates (72) away from the limiting grooves (61) extend to the inside of the second channel body (1). The insides of the two movable plates (72) are provided with a limiting hole (73), and the two movable plates (72) are slidably connected to the limiting rod (62) through the limiting hole (73).

5. A two-channel shock wave sootblowing device according to claim 4, characterized in that: A first dust removal assembly (8) is fixedly connected to the bottom of the two movable plates (72) and located inside the two channel bodies (1), and the first dust removal assembly (8) comprises a first mounting plate (81), the two first mounting plates (81) are fixedly connected to the bottom of the movable plate (72), the outsides of the two first mounting plates (81) are fixedly connected to lower dust removal brushes (82), and one side of the two lower dust removal brushes (82) is in contact with the water-cooled wall surface (41).

6. A two-channel shock wave sootblowing device according to claim 4, characterized in that: A second dust removal assembly (9) is fixedly connected to the top of the two movable plates (72) and located inside the two channel bodies (1); the second dust removal assembly (9) comprises a second mounting plate (91); the two second mounting plates (91) are fixedly connected to the top of the movable plates (72); the outsides of the two second mounting plates (91) are fixedly connected to upper dust removal brushes (92); and one side of the two upper dust removal brushes (92) is in contact with the water-cooled wall surface (41).

Images