Matrix type multi-frequency collaborative soot blower for flue gas and air ducts of boilers and kilns

Abstract

The utility model discloses a matrix type multi-frequency collaborative soot blower for a boiler and a kiln flue gas duct, which comprises a flue connected with the boiler; two groups of heat exchangers are arranged in the flue, and each heat exchanger comprises a plurality of groups of heat exchange pipes; the multiple frequency-adjustable sound wave soot blowers are fixed to the outer wall of the flue, loudspeakers of the frequency-adjustable sound wave soot blowers are located in the flue, the loudspeakers of the frequency-adjustable sound wave soot blowers are horizontally arranged, and the loudspeakers of the frequency-adjustable sound wave soot blowers are located between the two sets of heat exchangers; and the multiple diaphragm type sound wave soot blowers are arranged in the flue and located between the two sets of heat exchangers, and loudspeakers of the diaphragm type sound wave soot blowers are arranged in a non-horizontal mode. According to the technical scheme, a sound field superposition phenomenon is formed in a soot blowing area by adopting the frequency-adjustable soot blower and the internal matrix arrangement diaphragm type sound wave soot blower, so that sound intensity and sound kinetic energy form a superposition characteristic, and soot deposition in a soot deposition area is effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of ash removal technology for flue gas ducts of coal-fired boilers or kilns, and in particular to a matrix-type multi-frequency coordinated soot blowing device for flue gas ducts of boilers and kilns. Background Technology

[0002] Ash accumulation on the heating surfaces and flue gas ducts of coal-fired boilers in thermal power plants leads to reduced boiler thermal efficiency and increased energy consumption; ash accumulation on the heating surfaces and flue gas ducts of waste heat boilers also leads to reduced boiler thermal efficiency and increased energy consumption. Therefore, in order to reduce energy consumption, sonic soot blowers are used to blow soot from the flue gas ducts. However, traditional sonic soot blowers have the following drawbacks: they have a single sound frequency; traditional sonic soot blower equipment can only output sound waves of a fixed frequency, which cannot adapt to different ash accumulation characteristics (such as loose ash and sticky ash). Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts.

[0004] This utility model is achieved through the following technical solution:

[0005] A matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts includes:

[0006] A flue, which is connected to a boiler or kiln;

[0007] The heat exchanger includes two sets of heat exchangers inside the flue, and the heat exchanger includes multiple sets of heat exchange tubes.

[0008] Adjustable frequency acoustic soot blower, multiple adjustable frequency acoustic soot blowers are fixed on the outer wall of the flue and the horn of the adjustable frequency acoustic soot blower is located inside the flue. The horn of the adjustable frequency acoustic soot blower is set horizontally and is located between two sets of heat exchangers.

[0009] The diaphragm-type acoustic sootblower consists of multiple diaphragm-type acoustic sootblowers installed inside the flue and between two sets of heat exchangers. The horns of the diaphragm-type acoustic sootblowers are not horizontally positioned.

[0010] A further feature of this technical solution is that it also includes a matrix conduit, one end of which is open and the other end is closed. The matrix conduit passes through the flue and extends into the interior of the flue, with the open end of the matrix conduit located outside the flue. A diaphragm-type acoustic soot blower is fixed to the matrix conduit.

[0011] A further feature of this technical solution is that the outer wall of the matrix conduit is uniformly provided with multiple air outlets, and the air inlet of the diaphragm-type acoustic soot blower is connected to the air outlets.

[0012] A further feature of this technical solution is that the matrix conduit is fixed to the upper end of the heat exchanger below by multiple supports.

[0013] A further feature of this technical solution is that the support includes a T-shaped support, and the matrix conduit is located at the upper end of the support and is fixed to the T-shaped support by a clamp.

[0014] A further feature of this technical solution is that there are four adjustable frequency acoustic soot blowers, with each pair of adjustable frequency acoustic soot blowers forming a group, and the two groups being arranged opposite to each other.

[0015] This utility model discloses a matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts, which, compared with the prior art:

[0016] This technical solution uses an adjustable frequency sootblower and an internally matrix-arranged diaphragm-type acoustic sootblower to create a superposition of sound fields in the sootblowing area. This superposition of sound intensity and acoustic kinetic energy effectively removes accumulated ash from the ash-covered area. It solves the problem that a single sound frequency cannot effectively remove ash with different characteristics. By installing acoustic sootblowers in a matrix inside the flue, the sootblowing distance is optimized, resulting in a more thorough removal of accumulated ash. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is the front view of the present invention.

[0019] Figure 3 This is a schematic diagram of the arrangement structure of the diaphragm-type acoustic soot blower of this utility model. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the arrangement structure of the diaphragm-type acoustic soot blower of this utility model. Figure 2 .

[0021] The numbers and letters in the diagram represent the names of the corresponding components:

[0022] Among them: 100, flue; 200, heat exchanger; 300, adjustable frequency soot blower; 400, diaphragm soot blower; 500, matrix duct; 600, support; 601, clamp. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this utility model. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] See Figures 1 to 4As shown, a matrix-type multi-frequency coordinated sootblowing device for boiler and kiln flue gas ducts includes: a flue 100 connected to the boiler or kiln, used to discharge flue gas to the outside; the flue 100 can be a rectangular or circular cylindrical structure. For ease of understanding, this technical solution does not depict the flue 100 according to its actual structure, but mainly to illustrate the arrangement of the adjustable frequency acoustic sootblower 300; and a heat exchanger 200, with two sets of heat exchangers 200 inside the flue 100, each heat exchanger 200 including multiple sets of heat exchange tubes, both ends of which are fixed to the inner wall of the flue 100; and adjustable frequency acoustic sootblowing. The system comprises: a diaphragm-type sootblower 300, wherein multiple adjustable frequency acoustic sootblowers 300 are fixed to the outer wall of the flue 100, and the horns of the adjustable frequency acoustic sootblowers 300 are located inside the flue 100, with the horns of the adjustable frequency acoustic sootblowers 300 being horizontally positioned between two sets of heat exchangers 200; and a diaphragm-type sootblower 400, wherein multiple diaphragm-type sootblowers 400 are disposed inside the flue 100 and located between two sets of heat exchangers 200, with the horns of the diaphragm-type sootblowers 400 being non-horizontally positioned. It should be noted that both the adjustable frequency acoustic sootblower 300 and the diaphragm-type sootblower 400 are existing technologies. The adjustable frequency acoustic sootblower 300 can be... The soot blower disclosed in patent number "2024103664582" is used; the air inlet duct of the adjustable frequency acoustic soot blower 300 is located externally. In this technical solution, due to the long interior of the flue 100, the adjustable frequency acoustic soot blower 300 uses a motor with different rotation speeds to drive a rotating sound-generating cavity to cut the airflow, forming sound frequencies of 30-1000Hz, sound intensities of 100dB-230dB, and sound power of 100-4200 sound watts. This solves the problem that a single sound frequency cannot effectively remove different ash accumulation characteristics. The diaphragm-type acoustic soot blower, by installing acoustic soot blowers in a matrix inside the flue, achieves a beneficial maximization of the blowing distance, resulting in more thorough ash removal. The use of an internally matrix-arranged frequency-adjustable sootblower and a diaphragm-type acoustic sootblower creates a superposition of sound fields in the sootblowing area, resulting in superimposed sound intensity and acoustic kinetic energy, effectively removing accumulated ash from the ash-laden area. Furthermore, the frequency-adjustable acoustic sootblower 300 is primarily used for horizontal cleaning, while the diaphragm-type acoustic sootblower 400 is primarily used for vertical cleaning, making the removal of accumulated ash inside the flue 100 more thorough. It should also be noted that the heat exchanger 200's main function is to cool the inside of the flue 100, and both the frequency-adjustable acoustic sootblower 300 and the diaphragm-type acoustic sootblower 400 are located between the two heat exchangers 200, which largely avoids the impact of high temperatures on their operation.

[0026] See Figures 1 to 3As shown, it also includes a matrix conduit 500, one end of which is open and the other end is closed. The matrix conduit 500 passes through the flue 100 and extends into the interior of the flue 100. The open end of the matrix conduit 500 is located outside the flue 100. The diaphragm-type acoustic sootblower 400 is fixed at the matrix conduit 500. In the above technical solution, the open end is mainly used to introduce the compressed gas source. The gas source is introduced from the outside into the interior of the matrix conduit 500 through the open end, thereby providing a gas source for the diaphragm-type acoustic sootblower 400.

[0027] As a further preferred embodiment, the outer wall of the matrix conduit 500 is uniformly provided with multiple air outlets, and the air inlet of the diaphragm-type acoustic soot blower 400 is connected to the air outlets.

[0028] See Figure 4 As shown, the matrix conduit 500 is fixed to the upper end of the heat exchanger 200 below by multiple supports 600. A further configuration of this technical solution is that the support 600 includes a T-shaped support, the matrix conduit 500 is located at the upper end of the support 600 and is fixed to the T-shaped support by a clamp 601. Since the matrix conduit 500 itself has a certain weight, and the matrix conduit 500 is also connected to multiple diaphragm-type acoustic soot blowers 400, the multiple supports 600 fixed to the upper end of the heat exchanger 200 below can provide support for the matrix conduit 500 and the diaphragm-type acoustic soot blowers 400, making the entire device more stable. At the same time, the use of the clamp 601 makes it even more secure.

[0029] As a further preferred embodiment, there are four adjustable frequency acoustic soot blowers 300, with two adjustable frequency acoustic soot blowers 300 forming a group, and the two groups being arranged opposite each other.

[0030] See Figure 3 and Figure 4 As shown, Figure 3 This is one arrangement of the diaphragm-type acoustic soot blower 400. Figure 3 The horn of the diaphragm-type acoustic sootblower 400 is tilted at 20-80 degrees relative to the horizontal plane, and the arrangement direction of the diaphragm-type acoustic sootblower 400 is consistent with the arrangement direction of the horn of one of the adjustable frequency acoustic sootblower 400. Figure 4 This is another arrangement of the diaphragm-type acoustic soot blower 400. Figure 4 The horn of the diaphragm-type acoustic sootblower 400 is also tilted at an angle of 20-80 degrees relative to the horizontal plane, and the horn arrangement direction of the diaphragm-type acoustic sootblower 400 is perpendicular to the horn arrangement direction of the frequency-adjustable acoustic sootblower 400.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts, characterized in that, include: A flue (100) is connected to a boiler or kiln; Heat exchanger (200), two sets of heat exchangers (200) are provided in the flue (100), and the heat exchanger (200) includes multiple sets of heat exchange tubes; A frequency-adjustable sootblower (300) is provided. Multiple frequency-adjustable sootblowers (300) are fixed to the outer wall of the flue (100) and the horn of the frequency-adjustable sootblower (300) is located inside the flue (100). The horn of the frequency-adjustable sootblower (300) is set horizontally and is located between two sets of heat exchangers (200). Diaphragm-type acoustic soot blower (400), multiple diaphragm-type acoustic soot blowers (400) are installed inside the flue (100) and located between two sets of heat exchangers (200), the horn of the diaphragm-type acoustic soot blower (400) is not horizontal.

2. The matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts according to claim 1, characterized in that, It also includes a matrix conduit (500), one end of which is open and the other end is closed. The matrix conduit (500) passes through the flue (100) and extends into the interior of the flue (100). The open end of the matrix conduit (500) is located outside the flue (100). A diaphragm-type soot blower (400) is fixed to the matrix conduit (500).

3. The matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts according to claim 2, characterized in that: The outer wall of the matrix conduit (500) is uniformly provided with multiple air outlets, and the air inlet of the diaphragm-type acoustic soot blower (400) is connected to the air outlets.

4. The matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts according to claim 2 or 3, characterized in that: The matrix conduit (500) is fixed to the upper end of the heat exchanger (200) below by multiple supports (600).

5. The matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts according to claim 4, characterized in that: The support (600) includes a T-shaped support, and a matrix conduit (500) is located at the upper end of the support (600) and is fixed to the T-shaped support by a clamp (601).

6. The matrix-type multi-frequency coordinated soot blowing device for boiler and kiln flue gas ducts according to claim 1, characterized in that: There are four adjustable frequency acoustic soot blowers (300), with two adjustable frequency acoustic soot blowers (300) forming a group, and the two groups are arranged opposite to each other.

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