A spray cleaning pipe structure for a strip steel caustic washing device

Abstract

The utility model relates to a kind of for strip steel alkali washing equipment's spray cleaning pipe structure, including driving element, pipe body and connecting frame, the pipe body with the output shaft between the driving element is connected by the connecting frame, the pipe body is driven around the axis of the output shaft of the driving element rotation setting, the output shaft of the driving element with the connecting frame is connected by mechanical seal and sealed, the pipe body is away from the one end of the driving element and is equipped with liquid inlet, the side of the pipe body is equipped with liquid outlet and spray opening, the liquid outlet is connected with electromagnetic valve.The spray cleaning pipe structure provided in the utility model solves the problem that the maintenance cost of existing spray cleaning pipe is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of strip steel processing equipment, and in particular to a spray cleaning pipe structure for strip steel alkaline washing equipment. Background Technology

[0002] In continuous strip steel processing lines, the alkaline washing process is crucial to the surface quality of the strip steel. The spray cleaning pipe, as a core component of this process, is filled with high-pressure, high-temperature, and highly corrosive alkaline solution. During operation, the cleaning pipe needs to rotate to ensure that the internal brushes can evenly clean the pipe walls, which presents a challenge of dynamic sealing.

[0003] Traditional spray cleaning pipes have liquid input from the side and output from one end. The cleaning pipe is rotated by manually turning a valve connected to the other end. Therefore, both ends of the cleaning pipe need to be sealed during spraying to allow the liquid input from the side to be output from the spray nozzle located on the side of the cleaning pipe. During cleaning, the drive end needs to be kept sealed while the liquid outlet end is unsealed so that the liquid input from the side can be discharged from the liquid outlet end after cleaning the pipe wall.

[0004] On the one hand, the cleaning pipe needs to maintain two sealing points during spraying operations. Two sealing points mean double the risk of leakage. Under the corrosion and wear of strong alkaline media, the failure of any sealing point will cause the entire system to shut down, resulting in higher maintenance frequency and increased maintenance costs. On the other hand, since the cleaning pipe needs to continuously seal and unseal the liquid outlet when switching between spraying and cleaning operations, the sealing effect will deteriorate over time, requiring regular replacement of sealing components, which further increases maintenance costs. Utility Model Content

[0005] The main purpose of this utility model is to propose a spray cleaning pipe structure for steel strip alkaline washing equipment, which aims to solve the problem of high maintenance costs of existing spray cleaning pipes.

[0006] To achieve the above objectives, this utility model proposes a spray cleaning pipe structure for a steel strip alkaline washing equipment, comprising a driving component, a pipe body, and a connecting frame. The pipe body is connected to the output shaft of the driving component via the connecting frame. The pipe body is driven by the driving component to rotate around the axis of the output shaft. The output shaft of the driving component and the connecting frame are connected and sealed by a mechanical seal. An inlet is provided at the end of the pipe body away from the driving component, and an outlet and a spray nozzle are provided on the side of the pipe body. The outlet is connected to a solenoid valve.

[0007] According to some embodiments of the present invention, the connecting frame is sleeved on the output shaft. The connecting frame includes a first connecting part and a second connecting part that are connected to each other. The first connecting part is connected to the output shaft through the mechanical seal. The second connecting part is located on the side of the first connecting part that faces away from the tube body, and the second connecting part is connected to the output shaft.

[0008] According to some embodiments of the present invention, the connecting frame further includes a third connecting part, which is connected to the first connecting part through a second connecting part, and the third connecting part is connected to the output shaft through a bearing.

[0009] According to some embodiments of the present invention, a first annular groove is provided on the output shaft corresponding to the position of the second connecting part, and a first sealing ring is provided in the first annular groove to seal the gap between the output shaft and the second connecting part.

[0010] According to some embodiments of the present invention, a second annular groove is further provided on the output shaft corresponding to the position of the second connecting part. The second annular groove and the first annular groove are spaced apart in the axial direction of the output shaft and are located on the side of the first annular groove facing away from the mechanical seal. A second sealing ring is provided in the second annular groove to seal the gap between the output shaft and the second connecting part.

[0011] According to some embodiments of the present invention, a leakage monitoring hole is provided on the second connecting part, the leakage monitoring hole is located between the first annular groove and the second annular groove, and a flow sensor is provided inside the leakage monitoring hole.

[0012] According to some embodiments of the present invention, the depth of the first annular groove is less than the diameter of the first sealing ring, and the depth of the second annular groove is less than the diameter of the second sealing ring.

[0013] According to some embodiments of this utility model, the spray nozzle is positioned close to the liquid inlet.

[0014] According to some embodiments of the present invention, the tube body is coaxially arranged with the output shaft of the drive component.

[0015] According to some embodiments of this utility model, the driving component is a drive motor.

[0016] This utility model has at least the following beneficial effects:

[0017] In this invention, the pipe body and the output shaft of the drive component are connected by a connecting bracket. The drive component drives the pipe body to rotate. Liquid enters from the inlet located at the end of the pipe body and exits from the outlet located on the side of the pipe body. The end of the pipe body is sealed by a mechanical seal located between the output shaft and the connecting bracket. The outlet is connected to a solenoid valve. During spraying operations, the solenoid valve can be controlled to close to seal the outlet, allowing the liquid output from the inlet to spray out from the spray nozzle. During cleaning operations, the solenoid valve can be controlled to open, allowing the liquid to exit from the outlet. This invention uses the mechanical seal to seal locations that need to maintain a seal for a long time, and the solenoid valve to seal locations that need to switch sealing states. Since the outlet and the spray nozzle are both located on the side of the pipe body, even if the solenoid valve's sealing effect deteriorates after prolonged use, resulting in slight leakage, the outlet can still be used as a spray nozzle. Therefore, only one sealing point at the mechanical seal location needs maintenance, greatly reducing maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.

[0019] Figure 1 A schematic diagram of a spray cleaning pipe structure provided in an embodiment of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram showing the engagement of the output shaft of the drive unit with the connecting frame.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100-Spray cleaning pipe structure; 1-Drive component; 11-Output shaft; 111-First annular groove; 112-Second annular groove; 2-Pipe body; 21-Inlet; 22-Outlet; 23-Spray nozzle; 24-Solenoid valve; 3-Connecting frame; 31-First connecting part; 32-Second connecting part; 321-Leakage monitoring hole; 33-Third connecting part; 34-Flow sensor; 4-Mechanical seal; 5-Bearing; 6-First sealing ring; 7-Second sealing ring. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model provides a spray cleaning pipe structure for a steel strip alkaline washing equipment. Figures 1 to 2 This invention provides a specific embodiment of a spray cleaning pipe structure for a steel strip alkaline washing equipment.

[0027] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a spray cleaning pipe structure 100 for a steel strip alkaline washing equipment, including a driving component 1, a pipe body 2, and a connecting frame 3. The pipe body 2 is connected to the output shaft 11 of the driving component 1 through the connecting frame 3. The pipe body 2 is driven by the driving component 1 to rotate around the axis of the output shaft 11. The output shaft 11 of the driving component 1 is connected and sealed to the connecting frame 3 through a mechanical seal 4. The end of the pipe body 2 away from the driving component 1 is provided with a liquid inlet 21, and the side of the pipe body 2 is provided with a liquid outlet 22 and a spray nozzle 23. The liquid outlet 22 is connected to a solenoid valve 24.

[0028] In this invention, the tube body 2 and the output shaft 11 of the drive component 1 are connected by a connecting frame 3. The drive component 1 drives the tube body 2 to rotate. Liquid is input from the inlet 21 located at the end of the tube body 2 and output from the outlet 22 located on the side of the tube body 2. The end of the tube body 2 is sealed by a mechanical seal 4 located between the output shaft 11 and the connecting frame 3. The outlet 22 is connected to a solenoid valve 24. During spraying operations, the solenoid valve 24 can be controlled to close to seal the outlet 22, so that the liquid output from the inlet 21 is sprayed out from the spray nozzle 23. During cleaning operations, the solenoid valve 24 can be controlled to open, so that the liquid can be output from the outlet 22. This invention uses the mechanical seal 4 to seal locations that require long-term sealing, and the solenoid valve 24 to seal locations that require switching of sealing states. Since the liquid outlet 22 and the spray nozzle 23 are both located on the side of the pipe body 2, even if the solenoid valve 24 experiences sealing problems and slight leakage after prolonged use, the liquid outlet 22 can be used as a spray nozzle 23. Therefore, only one sealing point at the location of the mechanical seal 4 needs to be maintained, greatly reducing maintenance costs.

[0029] It should be noted that in some embodiments, the driving component 1 is a drive motor. This configuration, by replacing manual driving with motor drive, reduces labor costs.

[0030] Preferably, in some embodiments, the tube body 2 is coaxially arranged with the output shaft 11 of the drive component 1, making the rotation of the tube body 2 more stable.

[0031] In some embodiments, such as Figure 2 As shown, the spray nozzle 23 is positioned close to the liquid inlet 21. This arrangement results in higher liquid pressure and velocity at the liquid inlet 21, leading to a better spraying effect.

[0032] The specific structure of the connecting frame 3 is not limited; for example, in some embodiments, such as... Figure 2 As shown, the connecting frame 3 is sleeved on the output shaft 11. The connecting frame 3 includes a first connecting part 31 and a second connecting part 32 that are connected to each other. The first connecting part 31 is connected to the output shaft 11 through the mechanical seal 4. The second connecting part 32 is located on the side of the first connecting part 31 facing away from the tube body 2, and the second connecting part 32 is connected to the output shaft 11. With this configuration, even if the mechanical seal 4 fails, the liquid in the tube body 2 can seep in through the gap at the mechanical seal 4. The seepage path is extended through the second connecting part 32, thereby improving the overall sealing effect.

[0033] Furthermore, in some embodiments, such as Figure 2 As shown, the connecting frame 3 further includes a third connecting part 33, which is connected to the first connecting part 31 via a second connecting part 32, and is connected to the output shaft 11 via a bearing 5. Specifically, the third connecting part 33 of the connecting frame 3 is connected to the outer ring of the bearing 5, and the output shaft 11 is connected to the inner ring of the bearing 5. The radial force can be balanced by setting the bearing 5.

[0034] Furthermore, in some embodiments, such as Figure 2 As shown, a first annular groove 111 is formed on the output shaft 11 corresponding to the position of the second connecting part 32. A first sealing ring 6 is provided in the first annular groove 111 to seal the gap between the output shaft 11 and the second connecting part 32. With this configuration, even if the mechanical seal 4 fails, the first sealing ring 6 can seal the gap between the output shaft 11 and the second connecting part 32, preventing alkaline solution from seeping into the bearing 5.

[0035] In some embodiments, such as Figure 2 As shown, a second annular groove 112 is also provided on the output shaft 11 corresponding to the position of the second connecting part 32. The second annular groove 112 and the first annular groove 111 are spaced apart axially on the output shaft 11 and are located on the side of the first annular groove 111 facing away from the mechanical seal 4. A second sealing ring 7 is provided in the second annular groove 112 to seal the gap between the output shaft 11 and the second connecting part 32. With this arrangement, by sealing the gap between the output shaft 11 and the second connecting part 32 with the first sealing ring 6, the lubricating oil in the bearing 5 can be prevented from seeping into the tube body 2.

[0036] Furthermore, in some embodiments, such as Figure 2 As shown, a leakage monitoring hole 321 is provided on the second connecting part 32. The leakage monitoring hole 321 is located between the first annular groove 111 and the second annular groove 112, and a flow sensor 34 is installed inside the leakage monitoring hole 321. With this configuration, when the seal of the second sealing ring 7 fails, the lubricating oil in the bearing 5 seeps into the space between the first annular groove 111 and the second annular groove 112 and flows out from the leakage monitoring hole 321. At this time, the highly sensitive flow sensor 34 detects the fluid passing through and triggers an alarm, alerting maintenance personnel. Similarly, when the seals of the mechanical seal 4 and the first sealing ring 6 fail, the alkaline solution in the pipe body 2 seeps into the space between the first annular groove 111 and the second annular groove 112 and flows out from the leakage monitoring hole 321. The flow sensor 34 detects the fluid passing through and triggers an alarm.

[0037] Specifically, in some embodiments, the depth of the first annular groove 111 is less than the diameter of the first sealing ring 6, and the depth of the second annular groove 112 is less than the diameter of the second sealing ring 7. With this configuration, when the connecting bracket 3 is fitted onto the output shaft 11, the connecting bracket 3 applies force to the first sealing ring 6 and the second sealing ring 7, causing them to deform and seal the gap between the output shaft 11 and the second connecting portion 32.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spray cleaning pipe structure for a steel strip alkaline washing equipment, characterized in that, The device includes a drive unit, a tube body, and a connecting frame. The tube body is connected to the output shaft of the drive unit via the connecting frame. The tube body is driven by the drive unit to rotate around the axis of the output shaft. The output shaft of the drive unit and the connecting frame are connected and sealed by a mechanical seal. The end of the tube body away from the drive unit has a liquid inlet, and the side of the tube body has a liquid outlet and a spray nozzle. The liquid outlet is connected to a solenoid valve.

2. The spray cleaning pipe structure as described in claim 1, characterized in that, The connecting frame is sleeved on the output shaft. The connecting frame includes a first connecting part and a second connecting part that are connected to each other. The first connecting part is connected to the output shaft through the mechanical seal. The second connecting part is located on the side of the first connecting part that faces away from the tube body and is connected to the output shaft.

3. The spray cleaning pipe structure as described in claim 2, characterized in that, The connecting frame further includes a third connecting part, which is connected to the first connecting part through a second connecting part, and the third connecting part is connected to the output shaft through a bearing.

4. The spray cleaning pipe structure as described in claim 3, characterized in that, A first annular groove is provided on the output shaft corresponding to the position of the second connecting part, and a first sealing ring is provided in the first annular groove to seal the gap between the output shaft and the second connecting part.

5. The spray cleaning pipe structure as described in claim 4, characterized in that, A second annular groove is also provided on the output shaft corresponding to the position of the second connecting part. The second annular groove and the first annular groove are spaced apart in the axial direction of the output shaft and are located on the side of the first annular groove away from the mechanical seal. A second sealing ring is provided in the second annular groove to seal the gap between the output shaft and the second connecting part.

6. The spray cleaning pipe structure as described in claim 5, characterized in that, A leakage monitoring hole is provided on the second connecting part. The leakage monitoring hole is located between the first annular groove and the second annular groove. A flow sensor is provided inside the leakage monitoring hole.

7. The spray cleaning pipe structure as described in claim 5, characterized in that, The depth of the first annular groove is less than the diameter of the first sealing ring, and the depth of the second annular groove is less than the diameter of the second sealing ring.

8. The spray cleaning pipe structure as described in claim 1, characterized in that, The spray nozzle is positioned close to the liquid inlet.

9. The spray cleaning pipe structure as described in claim 1, characterized in that, The tube body is coaxially arranged with the output shaft of the drive component.

10. The spray cleaning pipe structure as described in claim 1, characterized in that, The driving component is a drive motor.

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