Tube bundle demister

Abstract

The utility model relates to a tube bundle demister which comprises a barrel and a spraying mechanism, a plurality of rotational flow plates are arranged in the barrel at intervals in the vertical direction, the spraying mechanism comprises a flushing pipe, and the flushing pipe penetrates through at least part of the rotational flow plates in the vertical direction and is detachably connected with at least one rotational flow plate. The flushing pipe comprises a water inlet pipe section, a spraying pipe section and a water outlet pipe section which are sequentially connected through threads. According to the technical scheme, the flushing pipe can be rapidly disassembled and assembled, meanwhile, the stability of the flushing pipe is further enhanced through detachable connection of the flushing pipe and the at least one rotational flow plate, the situation that the flushing effect is affected due to the fact that the rotational flow plate and the flushing pipe shake when the flushing water pressure is too large is avoided, and the flushing pipe has the use reliability and safety.

Description

Technical Field

[0001] This disclosure relates to the field of flue gas treatment equipment technology, and more specifically, to a tube bundle demister. Background Technology

[0002] Tube bundle demisters are an important piece of equipment for treating flue gas at the end of power plant operations. They are usually arranged in an array inside the desulfurization absorption tower to separate mist droplets entrained in the gas, reduce damage to valuable materials, improve the working environment of the heat exchanger downstream of the tower, and reduce the technical requirements for corrosion prevention processes inside the tower.

[0003] During operation, scale can easily accumulate on the swirl plates inside the tube bundle demister. Therefore, a flushing water pipe is usually installed inside the tube bundle demister to flush the inside of the tube bundle demister.

[0004] In related technologies, multiple pipe sections of a flushing water pipe are usually fixed together by two arc-shaped splicing sleeves. The two splicing sleeves are fixed together by a relatively complex connection structure, which makes this method difficult to disassemble and assemble, and is not conducive to saving time and costs. Utility Model Content

[0005] The purpose of this disclosure is to provide a tube bundle demister that enables quick assembly and disassembly of the flushing tube, thereby at least partially solving the aforementioned technical problems.

[0006] To achieve the above objectives, this disclosure provides a tube bundle demister, comprising:

[0007] A cylindrical body, wherein multiple swirl plates are arranged vertically at intervals inside the cylindrical body; and

[0008] A spraying mechanism includes a flushing pipe that passes through at least a portion of the swirl plate along the vertical direction and is detachably connected to at least one of the swirl plates. The flushing pipe includes an inlet pipe section, a spray pipe section, and an outlet pipe section that are connected in sequence by threads.

[0009] Optionally, the spray pipe section includes a first spray pipe section, a connecting pipe section, and a second spray pipe section connected sequentially by threads. The end of the first spray pipe section opposite to the connecting pipe section is connected to the water inlet pipe section, and the end of the second spray pipe section opposite to the connecting pipe section is connected to the water outlet pipe section.

[0010] Optionally, at least one of the plurality of swirl plates includes a first threaded structure; the water inlet pipe section, the connecting pipe section and the water outlet pipe section include a second threaded structure; the first spray pipe section and the second spray pipe section include a third threaded structure that cooperates with the second threaded structure; and the outer wall of the connecting pipe section is provided with a fourth threaded structure that cooperates with the first threaded structure.

[0011] The second and third threaded structures have opposite thread directions to the first and fourth threaded structures.

[0012] Optionally, the number of swirl plates is three, and the three swirl plates are arranged vertically at intervals in the cylinder to divide the cylinder into a first chamber, a second chamber and a third chamber; the water inlet pipe section and the first spray pipe section are located in the first chamber, the connecting pipe section and the second spray pipe section are located in the second chamber, and the water outlet pipe section is located in the third chamber.

[0013] Optionally, the swirl plate located between the first chamber and the second chamber of the three swirl plates includes a first threaded structure, and the other swirl plates include through holes through which the flushing pipe passes.

[0014] Optionally, the first thread structure and the second thread structure are constructed as internal threads, and the third thread structure and the fourth thread structure are constructed as external threads.

[0015] Optionally, both the first spray pipe section and the second spray pipe section include multiple built-in nozzles.

[0016] Optionally, the spraying mechanism further includes a hose, one end of which is connected to the water inlet pipe section and the other end of which is connected to a branch pipe, the branch pipe being used to deliver cleaning medium to the hose.

[0017] Optionally, there are multiple branch pipes, all of which are connected to the main pipe, and the main pipe is equipped with a main control valve.

[0018] Optionally, the tube bundle demister further includes a grid plate disposed at the bottom of the cylinder.

[0019] The above technical solution provides a flushing pipe comprising an inlet pipe section, a spray pipe section, and an outlet pipe section connected sequentially by threads, facilitating quick assembly and disassembly. Furthermore, in related technologies, scale easily adheres to the connection gap between the two arc-shaped splicing sleeves, leading to difficulties in assembly and disassembly. In this application, however, the pipe sections are connected by threads, which does not affect the assembly and disassembly of the flushing pipe. The flushing pipe is detachably connected to at least one swirl plate, which better secures the flushing pipe and prevents swaying between the swirl plate and the flushing pipe when the flushing water pressure is too high, thus affecting the flushing effect. Therefore, the tube bundle demister provided in this disclosure is easy to assemble and disassemble, and has greater reliability and safety in use.

[0020] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the tube bundle demister provided in the exemplary embodiments of this disclosure;

[0023] Figure 2 This is a schematic diagram of the structure of the first spray pipe segment provided in an exemplary embodiment of this disclosure;

[0024] Figure 3 This is a schematic diagram of the structure of the second spray pipe segment provided in an exemplary embodiment of this disclosure;

[0025] Figure 4 This is a schematic diagram of the connecting pipe segment provided in an exemplary embodiment of this disclosure.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Cylinder body; 10. Swirl plate; 11. First chamber; 12. Second chamber; 13. Third chamber; 14. Through hole;

[0028] 20. Inlet pipe section; 21. First spray pipe section; 22. Connecting pipe section; 23. Second spray pipe section; 24. Outlet pipe section; 25. Built-in nozzle; 26. External nozzle;

[0029] 3. First threaded structure; 4. Second threaded structure; 6. Third threaded structure; 5. Fourth threaded structure; 7. Hoses; 8. Branch pipes; 9. Main pipes;

[0030] 100. Main control valve; 110. Grille. Detailed Implementation

[0031] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0032] In this disclosure, unless otherwise stated, "inner" and "outer" refer to the inner and outer contours of the corresponding components. Furthermore, the terms "first" and "second" used in this disclosure are for distinguishing one element from another and are not sequential or significant. In addition, when the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] The working principle of a tube bundle demister is briefly described below. For example, the low-temperature saturated flue gas or gas at the top of the desulfurization absorption tower usually contains a large number of fine droplets. These droplets collide with dust particles under the influence of airflow. Due to the linear motion of the airflow, the condensed flue gas impacts the swirl plate 10. Under the centrifugal force of the swirl plate 10 blades, the droplets and dust particles carried in the flue gas are collected and removed as liquid. The liquid then flows back to the bottom of the desulfurization absorption tower under its own gravity. Therefore, scale easily accumulates on the swirl plate 10.

[0034] according to Figures 1 to 4 As shown, an embodiment of this disclosure provides a tube bundle demister, which may include a cylinder 1 and a spraying mechanism. The cylinder 1 has a plurality of swirl plates 10 arranged at intervals along the vertical direction inside. The spraying mechanism may include a flushing pipe that passes through at least a portion of the swirl plates 10 in the vertical direction and is detachably connected to at least one swirl plate 10. The flushing pipe may include an inlet pipe section 20, a spray pipe section, and an outlet pipe section 24 connected in sequence by threads. The flushing pipe is used to flush the scale inside the cylinder 1.

[0035] The above technical solution includes an inlet pipe section 20, a spray pipe section, and an outlet pipe section 24 connected sequentially by threads, which facilitates quick assembly and disassembly of the flushing pipe. In addition, in related technologies, scale tends to adhere to the connection gap between the two arc-shaped splicing sleeves, making assembly and disassembly difficult. However, in this application, the pipe sections are connected by threads, which will not affect the assembly and disassembly of the flushing pipe. By detachably connecting the flushing pipe to at least one swirl plate 10, the flushing pipe can be better fixed, so as to avoid shaking between the swirl plate 10 and the flushing pipe when the flushing water pressure is too high, thereby affecting the flushing effect and making it more reliable and safe to use.

[0036] The vertical direction can be the direction of extension of cylinder 1.

[0037] In some feasible ways, for example, refer to Figures 1 to 4 As shown, the spray pipe section may include a first spray pipe section 21, a connecting pipe section 22, and a second spray pipe section 23 connected sequentially by threads. The end of the first spray pipe section 21 facing away from the connecting pipe section 22 is connected to the inlet pipe section 20, and the end of the second spray pipe section 23 facing away from the connecting pipe section 22 is connected to the outlet pipe section 24. By setting the first spray pipe section 21 and the second spray pipe section 23, the spraying effect of the flushing pipe is further enhanced, the spraying area is expanded, and the reliability of use is improved.

[0038] It is understood that there can be multiple first spray pipe sections 21, connecting pipe sections 22, and second spray pipe sections 23. For example, they can be connected sequentially in the order of first spray pipe section 21, connecting pipe section 22, second spray pipe section 23, connecting pipe section 22, first spray pipe section 21, connecting pipe section 22, and second spray pipe section 23. Those skilled in the art can add first spray pipe sections 21, connecting pipe sections 22, and second spray pipe sections 23 according to the extension length of the cylinder 1, thereby extending the length of the rinsing pipe to adapt to different cylinders 1. This disclosure does not make specific limitations in this regard, and those skilled in the art can make adaptive adjustments according to the actual needs.

[0039] In some feasible ways, for example, refer to Figures 1 to 4 As shown, at least one of the multiple swirl plates 10 may include a first threaded structure 3; the inlet pipe section 20, the connecting pipe section 22, and the outlet pipe section 24 may include a second threaded structure 4; the first spray pipe section 21 and the second spray pipe section 23 may include a third threaded structure 6 that cooperates with the second threaded structure 4; and the outer wall of the connecting pipe section 22 may be provided with a fourth threaded structure 5 that cooperates with the first threaded structure 3. The second threaded structure 4 and the third threaded structure 6 have opposite thread directions to the first threaded structure 3 and the fourth threaded structure 5. In this way, when the operator disassembles the flushing pipe and the swirl plates 10, turning any pipe section according to the thread direction of the first threaded structure 3 and the fourth threaded structure 5 will only separate the swirl plates 10 from the flushing pipe, without causing separation of other pipe sections. This allows the operator to disassemble the flushing pipe and the swirl plates 10 without removing the swirl plates 10 from the cylinder 1, thus improving reliability and convenience.

[0040] In some feasible ways, for example, refer to Figures 2 to 4 As shown, the first thread structure 3 and the second thread structure 4 can be constructed as internal threads, while the third thread structure 6 and the fourth thread structure 5 can be constructed as external threads. This achieves seamless connection between the various pipe sections, preventing scale buildup in the gaps between the pipe sections during operation, which would adversely affect disassembly and assembly.

[0041] The following describes the threaded connection between the various pipe sections as an example. For instance, the third thread structure 6 of the first spray pipe section 21 and the second spray pipe section 23 can be clockwise with the second thread structure 4 of the inlet pipe section 20, the connecting pipe section 22 and the outlet pipe section 24. The first thread structure 3 of the swirl plate 10 can be counterclockwise with the fourth thread structure 5 of the outer wall of the connecting pipe section 22. When the operator disassembles the flushing pipe and the swirl plate 10, he can screw any of the above pipe sections clockwise to disassemble the connecting pipe section 22 and the swirl plate 10 without the other pipe sections becoming detached.

[0042] Of course, the thread direction of the third thread structure 6 and the second thread structure 4 can also be counterclockwise, and the first thread structure 3 and the fourth thread structure 5 can also be clockwise; the first thread structure 3 and the second thread structure 4 can also be constructed as external threads, and the third thread structure 6 and the fourth thread structure 5 can be constructed as internal threads. This disclosure does not make specific limitations in this regard, and those skilled in the art can make adaptive adjustments according to the actual needs.

[0043] Among them, sealing rings can be added at the joints of each pipe section as needed to further enhance the stability and sealing between the pipe sections.

[0044] The detachable nature of the swirl plate 10 and the connecting pipe section 22 can be adapted to meet actual needs; for example, it can also be fixed by means of clips and slots. This disclosure is not limited thereto.

[0045] In some feasible ways, for example, refer to Figure 1 As shown, there can be three swirl plates 10, which are arranged vertically at intervals within the cylinder 1 to divide the cylinder 1 into a first chamber 11, a second chamber 12, and a third chamber 13. The inlet pipe section 20 and the first spray pipe section 21 can be located in the first chamber 11, the connecting pipe section 22 and the second spray pipe section 23 can be located in the second chamber 12, and the outlet pipe section 24 can be located in the third chamber 13. By setting the first spray pipe section 21 in the first chamber 11, the second spray pipe section 23 in the second chamber 12, and the outlet pipe section 24 in the third chamber 13, the rinsing spray can be applied to each chamber, thus thoroughly cleaning the interior of the cylinder 1 and improving its reliability.

[0046] An external nozzle 26 may be installed at the outlet of the water outlet section 24. This disclosure is not limited thereto.

[0047] Optionally, the swirl plate 10 located between the first chamber 11 and the second chamber 12 among the three swirl plates 10 may include a first threaded structure 3, and the other swirl plates 10 may include through holes 14 for the flushing pipe to pass through. In this way, when disassembling the flushing pipe, the operator can directly remove the flushing pipe after unscrewing it. If the second or third swirl plate 10 includes the first threaded structure 3, the operator will inevitably need to remove the first swirl plate 10 at the same time during disassembly, which is more time-consuming and labor-intensive.

[0048] Optionally, both the first spray pipe section 21 and the second spray pipe section 23 include multiple built-in nozzles 25. The multiple built-in nozzles 25 can be arranged at intervals along the circumference of the first spray pipe section 21 and the second spray pipe section 23 to achieve comprehensive cleaning of the inside of the cylinder 1 from multiple directions, thereby improving the cleaning effect.

[0049] The following is a brief description of the installation process of the flushing pipe and the swirl plate 10. For example, the operator can pre-install the swirl plate 10 that needs to be threaded to the flushing pipe, and then align the flushing pipe with the through hole 14 of the swirl plate 10 located in the cylinder 1 for insertion and mating.

[0050] In some feasible ways, for example, refer to Figure 1 As shown, the spraying mechanism may also include a hose 7, one end of which is connected to the inlet pipe section 20, and the other end is connected to a branch pipe 8. The branch pipe 8 is used to deliver the cleaning medium to the hose 7. By setting the hose 7, the operator can adjust the installation position of the tube bundle demister arbitrarily within the deformable range of the hose 7, which is more flexible.

[0051] Optionally, there can be multiple branch pipes 8, all of which are connected to the main pipe 9. The main pipe 9 is equipped with a control valve 100, which is used to control the opening and closing of the main pipe 9, thereby realizing the control of multiple branch pipes 8.

[0052] It should be noted that there can be multiple tube bundle demisters, which are arranged in an array inside the desulfurization absorption tower. The hose 7 of each tube bundle demister is connected to each branch pipe 8, thereby enhancing the demisting effect on the desulfurization absorption tower.

[0053] In some feasible ways, for example, refer to Figure 1 As shown, the tube bundle demister may further include a grid plate 110 disposed at the bottom of the cylinder 1 to fix the cylinder 1. For the method of fixing the grid plate 110 to the cylinder 1, those skilled in the art can refer to relevant prior art literature, and this disclosure will not elaborate further here.

[0054] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure. It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not further describe the various possible combinations.

[0055] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A tube bundle demister, characterized in that, The application relates to a tube bundle demister. The tube bundle demister comprises a cylinder body, a plurality of cyclone plates arranged in the cylinder body in a vertical direction, and a spraying mechanism. The spraying mechanism comprises a flushing pipe which penetrates at least part of the cyclone plates in the vertical direction and is detachably connected with at least one of the cyclone plates. The flushing pipe comprises a water inlet pipe section, a spraying pipe section and a water outlet pipe section which are connected in sequence by threads.

2. The bundle demister according to claim 1, characterized in that The spraying pipe section comprises a first spraying pipe section, a connecting pipe section and a second spraying pipe section which are connected in sequence by threads.

3. The bundle demister of claim 2, wherein, At least one of the cyclone plates comprises a first thread structure. The water inlet pipe section, the connecting pipe section and the water outlet pipe section comprise a second thread structure.

4. The bundle demister of claim 3, wherein, The first spraying pipe section and the second spraying pipe section comprise a third thread structure which is matched with the second thread structure.

5. The bundle demister of claim 4, wherein, The second thread structure and the third thread structure are opposite to the first thread structure and the fourth thread structure in thread rotation direction.

6. The bundle demister according to any one of claims 3-5, characterized in that The number of the cyclone plates is three.

7. The bundle demister according to any one of claims 2-5, characterized in that The first spraying pipe section and the second spraying pipe section each comprise a plurality of built-in nozzles.

8. The bundle mist eliminator of claim 1, wherein, The spraying mechanism further comprises a hose which is connected with the water inlet pipe section at one end and connected with branch pipes at the other end.

9. The bundle demister of claim 8, wherein, The branch pipes are connected with a main pipe.

10. The bundle mist eliminator of claim 1, wherein, The tube bundle demister further comprises a grid plate arranged at the bottom of the cylinder body.

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