A desulfurizing tower flue inlet flushing device

Abstract

The utility model relates to flushing device technical field, concretely is a kind of desulfurizing tower flue inlet flushing device, including flue and rotating sleeve, the both ends of flue are provided with mounting bracket, and the mounting bracket is installed with driving motor on one end, the output of driving motor is connected with screw rod by shaft coupling, mobile station is installed on screw rod, bearing is arranged on mobile station, the side close to driving motor of mobile station is provided with water inlet, the surface of mobile station is provided with water outlet, the inner ring of bearing is connected with mobile station, water inlet cavity is set up in rotating sleeve, cleaning spray head is installed on rotating sleeve wall, the utility model's purpose is to provide a kind of desulfurizing tower flue inlet flushing device, to solve the problem that the existing flushing device flushes many dead angles, cleaning efficiency is low, needs manual auxiliary, realizes the automation of flue inlet inner wall, dead angle cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of flushing devices, specifically a flushing device for the inlet of a desulfurization tower flue. Background Technology

[0002] During the operation of the desulfurization tower, the flue inlet, as the primary channel for flue gas to enter the desulfurization system, is prone to accumulating impurities such as dust and sulfides (e.g., calcium sulfate, calcium sulfite) carried in the flue gas, forming ash or hard scale. Long-term accumulation can lead to the following problems: First, the flue diameter narrows, increasing the resistance to flue gas flow and reducing the desulfurization tower's processing efficiency; second, the scale layer corrodes the inner wall of the flue, shortening the equipment's service life; third, traditional cleaning methods often use "fixed nozzle flushing" or "manual cleaning." Fixed nozzles have blind spots and cannot cover the entire area of ​​the flue inlet, while manual cleaning requires shutdown, resulting in high labor intensity, low efficiency, and safety hazards associated with working at height.

[0003] To address the problems of incomplete flushing, low automation, and reliance on manual labor in existing flushing devices, this utility model proposes a mobile and rotatable all-around desulfurization tower flue inlet flushing device. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the flue gas inlet flushing device of the desulfurization tower, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a flue gas inlet flushing device for desulfurization towers, so as to solve the problems of existing flushing devices having many dead corners, low cleaning efficiency, and the need for manual assistance, and to realize automated and dead-corner-free cleaning of the inner wall of the flue gas inlet.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A flue gas inlet flushing device for a desulfurization tower includes a flue and a rotating sleeve;

[0009] Mounting brackets are provided at both ends of the flue. A drive motor is mounted on one end of the mounting bracket. The output end of the drive motor is connected to a lead screw via a coupling. A movable platform is mounted on the lead screw. A bearing is provided on the movable platform. A water inlet is provided on the side of the movable platform near the drive motor. A water outlet is opened on the surface of the movable platform. A rotating sleeve is connected to the inner ring of the bearing. A water inlet cavity is opened inside the rotating sleeve. A cleaning nozzle is installed on the outer wall of the rotating sleeve.

[0010] In a preferred embodiment of the desulfurization tower flue inlet flushing device described in this utility model, a guide rod is provided on the inner side of the mounting frame, and the guide rod is slidably connected to the moving platform.

[0011] In a preferred embodiment of the desulfurization tower flue inlet flushing device described in this utility model, one end of the lead screw passes through the mounting frame and is fixedly connected to the output end of the drive motor.

[0012] As a preferred embodiment of the desulfurization tower flue inlet flushing device described in this utility model, the lead screw is specifically a bidirectional lead screw, and the moving platform is threadedly connected to the lead screw. The bidirectional lead screw can drive the moving platform to move back and forth by rotating the motor in both directions.

[0013] As a preferred embodiment of the desulfurization tower flue inlet flushing device of this utility model, the inlet and outlet are connected, and there are two inlets, which are connected to a water pump through a connecting pipe.

[0014] As a preferred embodiment of the desulfurization tower flue inlet flushing device described in this utility model, the cleaning nozzles are provided in multiple ways, evenly distributed on the surface of the rotating sleeve, and the cleaning nozzles are inclined.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Thorough rinsing: The combined motion of the moving platform along the flue axis and the rotating sleeve driving the nozzle to rotate in a circle, along with multiple nozzles set at an angle, can fully cover the inner wall of the flue inlet, completely eliminating the rinsing dead angles of traditional fixed nozzles.

[0017] 2. High rinsing efficiency: High-pressure water is input through dual inlets, ensuring sufficient flow. The reaction force rotation design of the tilted nozzle further enhances the rinsing power, which can quickly remove accumulated dust and scale, improving cleaning efficiency by 3-5 times compared to traditional methods. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the mobile platform of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the rotating sleeve of this utility model.

[0023] In the diagram: 100 flue, 110 mounting bracket, 120 drive motor, 130 lead screw, 140 moving platform, 150 bearing, 160 water inlet, 170 water outlet, 180 guide rod, 200 rotating sleeve, 210 water inlet cavity, 220 cleaning nozzle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] This utility model provides the following technical solution: a flue gas inlet flushing device for a desulfurization tower, which, during use:

[0029] Flushing without dead angles: The combined motion of "moving platform along flue axis and rotating sleeve driving nozzle to rotate in a circle" and multiple inclined nozzles can fully cover the inner wall of flue inlet, completely eliminating the flushing dead angles of traditional fixed nozzles.

[0030] High rinsing efficiency: High-pressure water is input through dual inlets, ensuring sufficient flow. The reaction force rotation design of the tilted nozzle further enhances the rinsing power, quickly removing accumulated dust and scale. The cleaning efficiency is 3-5 times higher than traditional methods.

[0031] Figures 1-4 The diagram shown is a structural schematic of the first embodiment of a desulfurization tower flue gas inlet flushing device according to this utility model. Please refer to [link / reference]. Figures 1-4 The main body of the desulfurization tower flue inlet flushing device of this embodiment includes a flue 100 and a rotating sleeve 200.

[0032] The flue 100 is provided with mounting brackets 110 at both ends. A drive motor 120 is mounted on one end of the mounting bracket 110. The output end of the drive motor 120 is connected to a lead screw 130 through a coupling. A movable table 140 is mounted on the lead screw 130. A bearing 150 is provided on the movable table 140. A water inlet 160 is provided on the side of the movable table 140 close to the drive motor 120. A water outlet 170 is opened on the surface of the movable table 140. A rotating sleeve 200 is connected to the inner ring of the bearing 150. A water inlet cavity 210 is opened inside the rotating sleeve 200. A cleaning nozzle 220 is installed on the outer wall of the rotating sleeve 200.

[0033] Mounting brackets 110 are fixedly installed at both ends of the flue 100 (the inlet end and the middle position along the length of the flue 100). The mounting brackets 110 are made of carbon steel and are fixed to the outer wall of the flue 100 or the ground by expansion bolts. They are used to support moving parts such as the drive motor 120 and the lead screw 130. The drive motor 120 is installed on one end of the mounting bracket 110 (the side near the inlet of the flue 100) by a flange. The drive motor 120 is a stepper motor (model 57HS22 optional) with forward and reverse functions, which can precisely control the speed and stroke.

[0034] The output end of the drive motor 120 is fixedly connected to a lead screw 130 via a coupling. One end of the lead screw 130 passes through the mounting bracket 110 on this side and is fixedly connected to the output end of the drive motor 120; the other end is rotatably connected to the mounting bracket 110 on the other side via a bearing 150 seat. A movable table 140 is threaded onto the lead screw 130. The movable table 140 is made of stainless steel (304 stainless steel) and is in the shape of a "disc" or "rectangular block". A center of the movable table is provided to match the lead screw 130. The mounting bracket 110 has an internal threaded hole; at the same time, a guide rod 180 is welded to the inner side of the mounting bracket 110 (symmetrically located on both sides of the lead screw 130). The guide rod 180 is a smooth shaft (made of 45 steel). The moving table 140 has sliding holes on both sides that are adapted to the guide rod 180. The guide rod 180 is slidably connected to the moving table 140 to limit the rotation of the moving table 140 with the lead screw 130, and to ensure that the moving table 140 moves smoothly only along the axial direction of the lead screw 130 (i.e., the length direction of the flue 100).

[0035] A water inlet 160 is welded to one side of the moving platform 140 near the drive motor 120. There are two water inlets 160 (symmetrically distributed on both sides of the moving platform 140). The water inlets 160 are connected to an external water pump (the water pump pressure can be selected from 0.8 to 1.2 MPa) through a high-pressure connecting pipe (the material is a high-pressure resistant rubber pipe or a stainless steel pipe) for conveying high-pressure cleaning water. A water outlet 170 is opened on the surface of the moving platform 140 (the side facing the rotating sleeve 200). The water outlet 170 and the water inlet 160 are connected inside the moving platform 140 through a preset flow channel to form a "input-transfer" channel for high-pressure water.

[0036] A bearing 150 (a deep groove ball bearing 150, model 6204) is embedded on the side of the movable platform 140 facing the interior of the flue 100. A rotating sleeve 200 is interference-fitted to the inner ring of the bearing 150. A rotating sleeve 200 (annular or disc-shaped, adapted to the inner diameter of the flue 100 inlet) is welded to the end of the rotating sleeve 200 away from the bearing 150. An annular water inlet cavity 210 is provided inside the rotating sleeve 200, communicating with the water outlet 170 of the movable platform 140. (A nitrile rubber sealing ring (O-ring optional) is provided at the mating surface between the movable platform 140 and the rotating sleeve 200 to prevent high-pressure water leakage). After pressurized water enters the water inlet chamber 210 through the inlet 160 and outlet 170, it can be evenly distributed to each cleaning nozzle 220. Multiple cleaning nozzles 220 are installed on the outer wall of the rotating sleeve 200 (on the side facing the inner wall of the flue 100). The cleaning nozzles 220 are evenly distributed along the circumference of the rotating sleeve 200 (e.g., 8-12), and each cleaning nozzle 220 is inclined (the inclination angle is 30°-60°, forming an angle with the radial direction of the rotating sleeve 200), and the inclination direction is consistent (e.g., clockwise or counterclockwise). The reaction force of the high-pressure water jet drives the rotating sleeve 200 to rotate automatically (without additional driving parts), realizing all-round flushing of "circumferential coverage + axial movement".

[0037] Combination Figures 1-4 The working principle of the 100 inlet flushing device for a desulfurization tower flue in this embodiment is as follows:

[0038] Preparation phase: Check that all components are securely connected, that the sealing rings are intact, that the water pump and drive motor 120 wiring are normal, and that no personnel are present at the flue 100 inlet;

[0039] Start-up: Turn on the external water pump. High-pressure water enters the two inlets 160 of the moving platform 140 through the connecting pipe, and then flows from the outlet 170 into the water inlet chamber 210 of the rotating sleeve 200 through the internal flow channel of the moving platform 140. Finally, it is sprayed from each cleaning nozzle 220 onto the inner wall of the flue 100. At the same time, start the drive motor 120. The drive motor 120 drives the lead screw 130 to rotate forward. Under the thread drive of the lead screw 130 and the limiting action of the guide rod 180, the moving platform 140 slowly moves into the flue 100 along the length direction of the flue 100 (the moving speed can be selected as 5cm / min).

[0040] Rotary flushing: The cleaning nozzle 220 sprays at an angle, generating a reaction force that drives the rotating sleeve 200 to rotate clockwise around the axis of the rotating sleeve 200 (rotation speed of about 10 r / min), so that the high-pressure water flow forms a "spiral" flushing trajectory, which fully covers the ash and scale on the inner wall of the flue 100.

[0041] Return cleaning: When the moving platform 140 moves to the end of the flue inlet of the flue 100 (preset stroke), the drive motor 120 automatically reverses, driving the moving platform 140 to move back along the lead screw 130 to continue to flush the inner wall of the flue 100 a second time to ensure thorough cleaning;

[0042] Shutdown and completion: After the moving platform 140 returns to its initial position, turn off the drive motor 120 and the water pump. After the residual water in the pipe is drained, check the cleaning effect. If further cleaning is required, the above process can be repeated.

[0043] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of protection of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas inlet flushing device for a desulfurization tower, characterized in that: Includes a flue (100) and a rotating sleeve (200); The flue (100) has mounting brackets (110) at both ends. A drive motor (120) is mounted on one end of the mounting bracket (110). The output end of the drive motor (120) is connected to a lead screw (130) via a coupling. A movable platform (140) is mounted on the lead screw (130). A bearing (150) is provided on the movable platform (140). A water inlet (160) is provided on the side of the movable platform (140) close to the drive motor (120). A water outlet (170) is opened on the surface of the movable platform (140). A rotating sleeve (200) is connected to the inner ring of the bearing (150). A water inlet cavity (210) is opened inside the rotating sleeve (200). A cleaning nozzle (220) is installed on the outer wall of the rotating sleeve (200).

2. The inlet flushing device for a desulfurization tower flue (100) according to claim 1, characterized in that: The mounting bracket (110) is provided with a guide rod (180) on its inner side, and the guide rod (180) is slidably connected to the moving platform (140).

3. The inlet flushing device for a desulfurization tower flue (100) according to claim 1, characterized in that: One end of the lead screw (130) passes through the mounting bracket (110) and is fixedly connected to the output end of the drive motor (120).

4. The inlet flushing device for a desulfurization tower flue (100) according to claim 1, characterized in that: The lead screw (130) is specifically a bidirectional lead screw (130), and the moving platform (140) is threadedly connected to the lead screw (130). The bidirectional lead screw (130) can realize the reciprocating movement of the moving platform (140) by driving the motor (120) to rotate forward and backward.

5. The inlet flushing device for a desulfurization tower flue (100) according to claim 1, characterized in that: The inlet (160) is connected to the outlet (170), and there are two inlets (160), which are connected to the water pump through connecting pipes.

6. The inlet flushing device for a desulfurization tower flue (100) according to claim 1, characterized in that: Multiple cleaning nozzles (220) are provided and are evenly distributed on the surface of the rotating sleeve (200), and the cleaning nozzles (220) are inclined.

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