Dust deposition prevention device for flue heat exchanger

Abstract

The invention relates to the technical field of flue heat exchanger cleaning, in particular to a flue heat exchanger ash deposition prevention device which comprises a cleaning component, a main body, a shell arranged on the main body, a rotating assembly arranged in the shell, a linkage assembly arranged on the rotating assembly and a movable assembly arranged on the linkage assembly. The conversion component comprises a limiting assembly arranged on the rotating assembly, an adjusting assembly arranged on one side of the limiting assembly and a driving assembly arranged on the rotating assembly, dust accumulation in the flue heat exchanger is prevented through rotation of the rotating assembly, the dust floats after flapping, and the dust can be prevented from falling off; when the rotating assembly rotates, the movable assembly is driven to knock the interior of the main body, so that dust accumulated in the flue heat exchanger is loosened, the dust is separated from the main body, the movable assembly can stop running when the rotating assembly runs through the adjusting assembly, and vibration to the main body is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flue heat exchanger cleaning, in particular to a flue heat exchanger dust accumulation prevention device. Background Art

[0002] Flue heat exchanger is a device used to improve thermal efficiency, commonly used in industry and energy. Its main function is to recover and utilize the heat in the exhaust gas, thereby improving the overall energy efficiency of the system; the flue heat exchanger recovers the heat in the exhaust gas by transferring the heat in the exhaust gas to another medium (such as water or air). This recovered heat can be used to heat process fluids or preheat fuels. By recovering the heat in the exhaust gas, the flue heat exchanger can reduce the need for external heat sources, thereby reducing energy consumption and operating costs.

[0003] During use, most of the low-temperature economizers and phase-change heat exchanger modifications are installed in the flue gas expansion section at the tail of the power plant boiler as the main energy-saving technology devices. As low-temperature waste heat recovery devices, they have shown good energy-saving performance; however, the above two types of flue heat exchanger devices change the flue flow field, which leads to serious ash accumulation inside the flue and easily causes flue blockage. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the ash is seriously accumulated inside the flue and the flue is easily blocked in the above or prior art, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a device for preventing dust accumulation in a flue heat exchanger.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a flue heat exchanger dust accumulation prevention device, comprising:

[0008] The cleaning component comprises a main body, a shell arranged on the main body, a rotating component arranged in the shell, a linkage component arranged on the rotating component, and a movable component arranged on the linkage component.

[0009] The conversion component includes a limiting component arranged on the rotating component, an adjusting component arranged on one side of the limiting component, and a driving component arranged on the rotating component.

[0010] As a preferred solution of the flue heat exchanger anti-ash accumulation device of the present invention, the rotating assembly includes a rotating shaft arranged on the shell, a movable rod arranged at one end of the rotating shaft, and multiple groups of baffles arranged on the rotating shaft.

[0011] As a preferred solution of the flue heat exchanger anti-ash accumulation device of the present invention, the linkage assembly includes a lever arranged on the shell, a connecting rod arranged on one side of the lever, a hinged rod arranged below the connecting rod, and a limit block arranged on the hinged rod.

[0012] As a preferred solution of the flue heat exchanger anti-ash accumulation device of the present invention, the movable component includes a knocking rod arranged below the limit block, a sliding rod arranged on one side of the knocking rod, a sliding groove opened on the knocking rod, and multiple groups of triangular blocks arranged on both sides of the knocking rod.

[0013] As a preferred solution of the flue heat exchanger anti-ash accumulation device of the present invention, the multiple groups of triangular blocks are provided with two groups on one side close to the limit block and one group on the other side, and the triangular blocks are also provided with side edges and hook-shaped blocks arranged on the limit block.

[0014] As a preferred solution of the device for preventing dust accumulation of a flue heat exchanger of the present invention, the movable component further comprises a clamping block arranged in the slide groove, and a spring arranged on the clamping block.

[0015] As a preferred solution of the flue heat exchanger anti-ash deposition device of the present invention, the limiting assembly includes a connecting rod arranged on the movable rod, a limiting ring arranged on the connecting rod, and a cavity opened at one end of the rotating shaft.

[0016] As a preferred solution of the flue heat exchanger anti-ash accumulation device of the present invention, the adjustment component includes a groove opened on the movable rod, a plurality of groups of blocks arranged in the groove, and a support rod arranged on the block.

[0017] As a preferred solution of the device for preventing dust accumulation in a flue heat exchanger of the present invention, wherein: snap-fit ​​grooves, channels, and snap-fit ​​grooves are provided between the multiple groups of stoppers.

[0018] As a preferred solution of the device for preventing dust accumulation in a flue heat exchanger of the present invention, the driving assembly includes a connecting seat arranged on the shell, and a motor arranged on the connecting seat.

[0019] The beneficial effects of the flue heat exchanger anti-dust accumulation device of the present invention are as follows: dust accumulation in the flue heat exchanger is prevented by utilizing the operation of the rotating component, the dust will float up after being fanned, and the rotating component will drive the movable component to knock on the inside of the main body while rotating, so that the dust accumulated in the flue heat exchanger is loosened and the dust is separated from the main body, and the movable component can also be stopped by utilizing the adjusting component when the rotating component is operating, thereby reducing vibration to the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 This is an overall schematic diagram of the anti-ash deposition device for the flue heat exchanger.

[0022] Figure 2 This is an overall schematic diagram of the cleaning components.

[0023] Figure 3 It is a schematic diagram of the overall activity components.

[0024] Figure 4 This is another overall schematic diagram of the active component from another angle.

[0025] Figure 5 It is an overall schematic diagram of the linkage components.

[0026] Figure 6 Schematic diagram of the adjustment components. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 1 , which is the first embodiment of the present invention, provides a device for preventing dust accumulation in a flue heat exchanger, which can prevent the flue from being blocked. The device comprises a cleaning component 100, a main body 101, a shell 102 arranged on the main body 101, a rotating component 103 arranged in the shell 102, the rotating component 103 can prevent dust accumulation in the flue heat exchanger, a linkage component 104 movably connected to the rotating component 103, the linkage component 104 can drive the movable component 105 to operate, and the movable component 105 arranged on the linkage component 104 can knock the inside of the main body 101 when operating, thereby loosening the dust accumulated in the flue heat exchanger.

[0032] The conversion component 200 includes a limit component 201 arranged on the rotating component 103, the limit component 201 can adjust the state of the rotating component 103, an adjustment component 202 arranged on one side of the limit component 201, and a driving component 203 arranged on the rotating component 103, and the driving component 203 can drive the rotating component 103 to operate.

[0033] In summary, the accumulation of dust in the flue heat exchanger can be prevented by utilizing the operation of the rotating component 103. The dust will float up after being fanned. The rotating component 103 will drive the movable component 105 to knock on the inside of the main body 101 while rotating, so that the dust accumulated in the flue heat exchanger will be loosened and separated from the main body 101. In addition, the movable component 105 can be stopped when the rotating component 103 is operating by utilizing the adjusting component 202, thereby reducing the vibration to the main body 101.

[0034] Example 2

[0035] Reference Figures 2 to 5 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a flue heat exchanger dust prevention device, which solves the problem of serious dust accumulation inside the flue and easy blockage of the flue in the prior art. It includes a rotating assembly 103 including a rotating shaft 103a rotatably connected to the shell 102, a movable rod 103b fixedly connected to one end of the rotating shaft 103a, and a plurality of baffles 103c fixedly connected to the rotating shaft 103a. The plurality of baffles 103c are arranged in a circular array on the rotating shaft 103a. When the rotating shaft 103a rotates, the baffles 103c are driven to rotate, and the dust accumulated in the heat exchanger will be fanned by the wind speed driven by the rotation of the baffles 103c, so that the dust will not adhere to the inside of the flue heat exchanger.

[0036] Furthermore, the linkage assembly 104 includes a lever 104a rotatably mounted on the housing 102, a connecting rod 104b fixedly connected to one side of the lever 104a, the connecting rod 104b and the lever 104a being staggered, a hinged rod 104c rotatably connected below the connecting rod 104b, and a limit block 104d fixedly connected to the hinged rod 104c, and the hinged rod 104c is rotatably connected to the housing 102 via an axis.

[0037] Furthermore, the movable component 105 includes a knocking rod 105a slidably connected below the limit block 104d, a sliding rod 105b arranged on one side of the knocking rod 105a, the knocking rod 105a is slidably connected to the side wall of the shell 102 via the sliding rod 105b, ensuring that the sliding rod 105b slides in a straight line on the shell 102, a sliding groove 105c is opened on the knocking rod 105a, and multiple groups of triangular blocks 105d are fixedly connected to both sides of the knocking rod 105a.

[0038] Furthermore, two groups of triangular blocks 105d are arranged on one side close to the limit block 104d, and one group is arranged on the other side. The triangular block 105d is also provided with a side 105c-1 and a hook-shaped block 105c-2 fixedly connected to the limit block 104d, and the hook-shaped block can be fitted with the right-angle side of the triangular block 105d.

[0039] Furthermore, the movable component 105 also includes a block 105e fixedly connected in the slide slot 105c, the block 105e is fixedly connected to the housing 102, and a spring 105f fixedly connected to the block 105e, the spring 105f is fixedly connected between the end of the slide slot 105c and the block 105e.

[0040] Specifically, when the lever 104a passes through the hinged rod 104c during the rotation process, the hinged rod 104c will rotate under the drive of the connecting rod 104b, and the hinged rod 104c will drive the limit block 104d to deflect while rotating. Due to the elastic potential energy of the spring 105f, the fixation of the knocking rod 105a is released when the limit block 104d deflects. Then, with the elastic potential energy of the spring 105f, the knocking rod 105a slides back and forth and knocks the main body 101 multiple times until the hinged rod 104c fits with the other set of triangular blocks 105d on the same side, driving the knocking rod 105a to move back to its original position, and the hook block restores the knocking rod 105a again.

[0041] In summary, when the rotating shaft 103a rotates, it not only drives the multiple groups of blocks 202b to fan the dust, but also cooperates with the knocking rod 105a to knock the main body 101 to loosen the dust adhering to the main body 101 so that the dust floats inside the main body 101 to prevent the smoke duct from being blocked.

[0042] The remaining structures are the same as those of Example 1.

[0043] Example 3

[0044] Reference Figures 3 to 6 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a flue heat exchanger dust prevention device, which solves the problem of adjusting the movable component 105, and includes a limiting component 201 including a connecting rod 201a fixedly connected to the movable rod 103b, a spring 105f is arranged at the end of the connecting rod 201a, the connecting rod 201a is installed at the end of the rotating shaft 103a, a limiting ring 201b fixedly connected to the connecting rod 201a, and a cavity 201c opened at one end of the rotating shaft 103a, and the connecting rod 201a is rotatably connected in the cavity 201c.

[0045] Furthermore, the adjustment assembly 202 includes a groove 202a formed on the movable rod 103b, a plurality of groups of stoppers 202b fixedly connected to the groove 202a, and a support rod 202c hinged to the stoppers 202b.

[0046] Furthermore, the plurality of groups of stoppers 202b are provided with engaging grooves 202d, channels 202e, and engaging grooves 202f.

[0047] Furthermore, the driving assembly 203 includes a connection base 203a fixedly connected to the housing 102, and a motor 203b fixedly connected to the connection base 203a, and an output shaft of the motor 203b is connected to the rotating shaft 103a.

[0048] Specifically, when the operator pushes the movable rod 103b, the end of the movable rod 103b enters the cavity 201c, so that the movable rod 103b is connected to the rotating shaft 103a. At the same time, due to the displacement of the movable rod 103b, the support rod 202c on the movable rod 103b rotates, and the end of the support rod 202c enters the clamping groove 202d from the channel 202e, so that the support rod 202c fixes the inward position of the movable rod 103b to prevent the rotating shaft 103a from detaching from the movable rod 103b during the rotation process.

[0049] In summary, the motor 203b drives the rotating shaft 103a to rotate, and the linkage assembly 104 will operate together during the rotation. During the rotation, the knocking rod 105a will continuously knock on the main body 101, so that the main body 101 vibrates to shake off the dust. When the dust reaches a certain degree of vibration, the operator can press the movable rod 103b to make the movable rod 103b detach from the cavity 201c. At this time, the rotating shaft 103a rotates and the lever 104a stops rotating, and the knocking rod 105a cannot operate. The two groups of components are separate individuals and are no longer linked, so the vibration degree of the main body 101 can be adjusted at will.

[0050] The remaining structure is the same as that of Example 2.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for preventing dust accumulation in a flue heat exchanger, characterized in that: include, The cleaning component (100) comprises a main body (101), a shell (102) arranged on the main body (101), a rotating component (103) arranged in the shell (102), a linkage component (104) arranged on the rotating component (103), and a movable component (105) arranged on the linkage component (104). The conversion component (200) comprises a limit assembly (201) arranged on the rotating assembly (103), an adjustment assembly (202) arranged on one side of the limit assembly (201), and a driving assembly (203) arranged on the rotating assembly (103).

2. The dust accumulation prevention device for a flue heat exchanger according to claim 1, characterized in that: The rotating assembly (103) comprises a rotating shaft (103a) arranged on the housing (102), a movable rod (103b) arranged at one end of the rotating shaft (103a), and a plurality of baffles (103c) arranged on the rotating shaft (103a).

3. The dust accumulation prevention device for a flue heat exchanger according to claim 2, characterized in that: The linkage assembly (104) comprises a lever (104a) arranged on a housing (102), a connecting rod (104b) arranged on one side of the lever (104a), a hinged rod (104c) arranged below the connecting rod (104b), and a limit block (104d) arranged on the hinged rod (104c).

4. The dust accumulation prevention device for a flue heat exchanger according to claim 3, characterized in that: The movable component (105) comprises a knocking rod (105a) arranged below the limit block (104d), a sliding rod (105b) arranged on one side of the knocking rod (105a), a sliding groove (105c) provided on the knocking rod (105a), and a plurality of sets of triangular blocks (105d) arranged on both sides of the knocking rod (105a).

5. The dust accumulation prevention device for a flue heat exchanger according to claim 4, characterized in that: The plurality of groups of triangular blocks (105d) are provided with two groups on one side close to the limiting block (104d) and one group on the other side. The triangular block (105d) is also provided with a side edge (105c-1) and a hook-shaped block (105c-2) provided on the limiting block (104d).

6. The dust accumulation prevention device for a flue heat exchanger according to claim 5, characterized in that: The movable component (105) further comprises a clamping block (105e) arranged in the sliding groove (105c), and a spring (105f) arranged on the clamping block (105e).

7. The dust accumulation prevention device for a flue heat exchanger according to claim 6, characterized in that: The limiting assembly (201) comprises a connecting rod (201a) arranged on the movable rod (103b), a limiting ring (201b) arranged on the connecting rod (201a), and a cavity (201c) opened at one end of the rotating shaft (103a).

8. The dust accumulation prevention device for a flue heat exchanger according to claim 7, characterized in that: The adjustment component (202) comprises a groove (202a) formed on the movable rod (103b), a plurality of groups of stoppers (202b) arranged in the groove (202a), and a support rod (202c) arranged on the stoppers (202b).

9. The dust accumulation prevention device for a flue heat exchanger according to claim 8, characterized in that: A clamping groove (202d), a channel (202e), and a clamping groove (202f) are arranged between the multiple groups of stoppers (202b).

10. The dust accumulation prevention device for a flue heat exchanger according to claim 8 or 9, characterized in that: The driving assembly (203) comprises a connecting seat (203a) arranged on the housing (102), and a motor (203b) arranged on the connecting seat (203a).

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