Connecting structure of dosing pipeline of ship ballast water system
By introducing a connection structure with transmission gears and limiting devices into the chemical dosing pipeline of the ship's ballast water system, the problems of poor sealing and cumbersome operation caused by traditional bolt connections are solved, achieving efficient and safe pipeline connection, suitable for rapid installation of large flanges or multi-bolt structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing connection structure of the chemical dosing pipeline of the ship's ballast water system, rotating the bolts in sequence causes inconsistent stress on the flange plane, which can easily lead to local sealing failure, affecting the system's sealing performance and safety. Moreover, operating each bolt individually is time-consuming, especially for large flanges or multi-bolt structures, making manual operation cumbersome.
A connection structure including a fixing component and a positioning component is adopted. The dosing tube and the pipeline are quickly connected through a transmission gear and a limiting device, which replaces the traditional method of operating bolts one by one. This ensures uniform force and accurate positioning, and reduces manual adjustment time.
It significantly improves connection efficiency, reduces manual operation time and labor intensity, ensures uniform stress and sealing of the connection, reduces the risk of liquid leakage, and guarantees the safety and rapid installation requirements of the ship's ballast water system.
Smart Images
Figure CN224107847U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of dosing pipeline connection, especially relates to a connecting structure of a dosing pipeline of a ship ballast water system. BACKGROUND
[0002] The connecting structure of the dosing pipeline of the ship ballast water system is a key component for ensuring accurate dosing and mixing of the medicament, mainly comprising a dosing pump, a pipeline, a valve, a mixing device and a monitoring device. The dosing pump draws liquid medicine from a medicament storage cabin through a suction pipeline, and pressurizes the liquid medicine to a main pipeline of the ballast water through an outlet pipeline. A ball valve or a diaphragm valve is arranged in the pipeline to control the flow of the liquid medicine. A static mixer or a jet mixing device is usually installed at the junction of the liquid medicine and the ballast water to realize uniform mixing of the two by means of water flow. Flanges or sleeve joints are used for pipeline connection to ensure sealing performance and pressure resistance. Some pipeline sections are also provided with filters to prevent impurities from blocking the nozzles. In addition, a flowmeter and a pressure gauge are installed upstream of the pipeline to monitor the liquid medicine delivery pressure and flow rate in real time, and a sampling point is arranged downstream to detect the treatment effect. The whole structure realizes quantitative delivery, efficient mixing and state monitoring of the medicament through scientific layout, and meets the treatment standards of the International Convention on Ballast Water Management.
[0003] The connecting structure of the dosing pipeline of the ship ballast water system needs to be connected by sequentially rotating bolts, which may cause inconsistent force sequence of the flange plane, resulting in local sealing failure, especially under high pressure conditions, which may cause liquid medicine leakage, affecting the sealing performance and safety of the system. Moreover, the operation of each bolt needs to be adjusted multiple times, which is time-consuming, especially for large flanges or multi-bolt structures, which is tedious for manual operation and prolongs the pipeline installation or maintenance time. UTILITY MODEL CONTENTS
[0004] In view of the problems mentioned in the background art, the utility model aims to provide a connecting structure of a dosing pipeline of a ship ballast water system to solve the problems of inconsistent force sequence of the flange plane caused by sequentially rotating bolts, which may cause local sealing failure, affect the sealing performance and safety of the system, and the operation of each bolt needs to be adjusted multiple times, which is time-consuming, especially for large flanges or multi-bolt structures, which is tedious for manual operation and prolongs the pipeline installation or maintenance time.
[0005] The above technical purpose of the utility model is realized by the following technical scheme:
[0006] A connecting structure of a dosing pipeline of a ship ballast water system, comprising a pipeline and a dosing pipe, the outer side of the pipeline is fixedly connected with a first connecting flange, the bottom end of the dosing pipe is fixedly connected with a second connecting flange, the top of the second connecting flange is symmetrically installed with a fixing assembly, the outer side wall of the second connecting flange is fixedly connected with a second fixing block in symmetry, and the bottom of the second fixing block is installed with a positioning assembly.
[0007] The fixed assembly comprises a rotating column, a first threaded hole, a threaded rod and a plug, the rotating column is symmetrically connected to the top of the second connecting flange in a rotating manner, the first threaded hole is arranged at the top of the rotating column, the first threaded hole penetrates the second connecting flange, the threaded rod is in threaded connection with the inside of the first threaded hole, the plug is fixedly connected to the top of the threaded rod, the transmission assembly is installed on the outside of the rotating column, the second threaded hole is symmetrically arranged at the top of the first connecting flange, the threaded rod is in threaded connection with the second threaded hole, the transmission assembly comprises a driving gear, a driven gear, a connecting column and a rotating disc, the driving gear is rotatably sleeved on the outside of the dosing pipe, the driven gear is fixedly sleeved on the outside of the rotating column, the driven gear and the driving gear are in meshing connection, the connecting column is symmetrically fixedly connected to the top of the driving gear, the rotating disc is rotatably sleeved on the outside of the dosing pipe, and the connecting column is fixedly connected to the bottom of the rotating disc.
[0008] As a preferred technical solution, the sliding disc is slidably connected to the outside of the dosing pipe, the limiting columns are symmetrically fixedly connected to the bottom of the sliding disc, the limiting grooves are symmetrically arranged at the top of the rotating disc, and the limiting columns and the limiting grooves are in plug-in connection.
[0009] As a preferred technical solution, the guide grooves are symmetrically arranged in the side wall of the dosing pipe, the guide blocks are symmetrically fixedly connected to the inner wall of the sliding disc, the guide grooves and the guide blocks are in sliding connection, and the cooperation of the guide grooves and the guide blocks provides accurate guidance for the sliding of the sliding disc on the dosing pipe, so that the sliding disc can only slide smoothly in the direction of the guide grooves, radial deviation or shaking is avoided, and accurate plug-in connection of the limiting columns and the limiting grooves of the rotating disc is ensured.
[0010] As a preferred technical solution, the positioning assembly comprises an embedded hole, a reset spring and a positioning column, the bottom of the second fixing block is fixedly connected with an assembly block, the assembly block is provided with an embedded hole on one side, the embedded hole is fixedly connected with a reset spring at the bottom, the other end of the reset spring is fixedly connected with a positioning column, the positioning column is in sliding connection with the embedded hole, the other end of the positioning column extends out of the side end of the assembly block and is provided in an arc shape, the outer side wall of the first connecting flange is fixedly connected with a first fixing block in a symmetrical manner, the top of the first fixing block is provided with an assembly groove, the assembly block is in insertion with the assembly groove, one side of the inside of the assembly groove is provided with a positioning hole, and the positioning hole is in clamping connection with the positioning column, without complex calibration steps, the accurate positioning between the dosing pipe and the pipeline can be quickly realized, the manual adjustment time is reduced, the assembly efficiency is greatly improved, the quick installation demand of the pipeline of the ship is met, and the angle deviation or axial misplacement in the pipeline connection process can be effectively avoided, the flange sealing surface is ensured to be closely attached, and the accuracy and the sealing performance of the connection of the ballast water system are ensured.
[0011] In summary, the utility model mainly has the following beneficial effects:
[0012] Firstly, in the utility model, the dosing pipe and the pipeline are combined, the first connecting flange and the second connecting flange are combined, the rotating disc is rotated, the rotating disc drives the driving gear to rotate through the connecting column, the driving gear drives the driven gear to rotate, the rotating column is rotated, the first threaded hole is rotated at the same time, the threaded rod is in threaded transmission with the first threaded hole, the threaded rod is controlled to descend and be in threaded connection with the first threaded hole on the first connecting flange, the traditional bolt operation mode is replaced, the fastening process only needs one operation, the connection efficiency is greatly improved, the manual operation time and the labor intensity are reduced, the connection stress is ensured to be uniform, the sealing problem caused by the fastening sequence is effectively avoided, the sealing performance of the system is enhanced, the medicine leakage risk is reduced, and the safe operation of the ship ballast water system is ensured.
[0013] Secondly, in the utility model, the dosing pipe and the pipeline are combined, the first connecting flange and the second connecting flange are combined, and the assembly block is inserted into the inside of the assembly groove, in the insertion process, the extrusion force is applied to the arc-shaped end of the positioning column, the positioning column is pressed towards the reset spring, the reset spring is compressed, the positioning column is retracted into the embedded hole, when the positioning column moves to the positioning hole, the reset spring resets, the positioning column pops out and is clamped with the positioning hole, without complex calibration steps, the accurate positioning between the dosing pipe and the pipeline can be quickly realized, the manual adjustment time is reduced, the assembly efficiency is greatly improved, the quick installation demand of the pipeline of the ship is met, and the angle deviation or axial misplacement in the pipeline connection process can be effectively avoided, the flange sealing surface is ensured to be closely attached, and the accuracy and the sealing performance of the connection of the ballast water system are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0015] Figure 2 is the sectional view structural schematic diagram of the utility model Figure 1 the A part enlarged view of
[0016] Figure 3 is the sectional view structural schematic diagram of the utility model
[0017] Figure 4 is the sectional view structural schematic diagram of the utility model Figure 3 the B part enlarged view of
[0018] The drawing figure label: 1, pipeline;2, dosing pipe;3, first connecting flange;4, second connecting flane;5, first fixed block;6, second fixed block;7, assembly block;8, assembly groove;9, fixed assembly;91, rotating column;92, first threaded hole;93, threaded rod;94, plug;10, second threaded hole;11, transmission assembly;111, driving gear;112, driven gear;113, connecting column;114, rotating disc;12, sliding disc;13, limiting column;14, limiting groove;15, positioning assembly;151, built-in hole;152, return spring;153, positioning column;16, positioning hole;17, guide groove;18, guide block. Specific implementation
[0019] Embodiment
[0020] Reference Figures 1 to 4 , the connecting structure of a ship ballast water system dosing pipeline described in this embodiment, including pipeline 1 and dosing pipe 2, the outer side of pipeline 1 is fixedly connected with first connecting flange 3, the bottom end of dosing pipe 2 is fixedly connected with second connecting flange 4, the top of second connecting flange 4 is symmetrically provided with fixed assembly 9, the outer side wall of second connecting flange 4 is fixedly connected with second fixed block 6 symmetrically, and the bottom of second fixed block 6 is provided with positioning assembly 15;
[0021] Fixed assembly 9 includes rotating column 91, first threaded hole 92, threaded rod 93 and plug 94, the top of second connecting flange 4 is symmetrically rotatably connected with rotating column 91, the top of rotating column 91 is provided with first threaded hole 92, first threaded hole 92 penetrates second connecting flange 4, threaded rod 93 is screwedly connected in first threaded hole 92, the top of threaded rod 93 is fixedly connected with plug 94, transmission assembly 11 is installed on the outer side of rotating column 91, the top of first connecting flange 3 is symmetrically provided with second threaded hole 10, threaded rod 93 is screwedly connected with second threaded hole 10, dosing pipe 2 is combined with pipeline 1, first connecting flange 3 is combined with second connecting flange 4, rotating column 91 is controlled to rotate through transmission assembly 11, first threaded hole 92 follows rotation, threaded rod 93 is screwedly driven with first threaded hole 92, threaded rod 93 is controlled to descend and screwedly connected with first threaded hole 92 on first connecting flange 3.
[0022] With reference to Figures 2 to 3 The transmission assembly 11 comprises a driving gear 111, a driven gear 112, a connecting column 113 and a rotating disc 114. The driving gear 111 is rotatably sleeved outside the dosing pipe 2. The driven gear 112 is fixedly sleeved outside the rotating column 91. The driven gear 112 is in mesh with the driving gear 111. The driving gear 111 is symmetrically fixedly connected with the connecting column 113 at the top. The rotating disc 114 is rotatably sleeved outside the dosing pipe 2. The connecting column 113 is fixedly connected with the bottom of the rotating disc 114. The rotating disc 114 is rotated to drive the driving gear 111 to rotate through the connecting column 113. The driving gear 111 drives the driven gear 112 to rotate, so that the rotating column 91 is rotated.
[0023] With reference to Figure 2 The dosing pipe 2 is slidably connected with a sliding disc 12 outside. The sliding disc 12 is symmetrically fixedly connected with a limiting column 13 at the bottom. The rotating disc 114 is symmetrically provided with a limiting slot 14 at the top. The limiting column 13 is inserted into the limiting slot 14. When the pipeline 1 is connected with the dosing pipe 2, the sliding disc 12 is loosened. Due to gravity, the sliding disc 12 drives the limiting column 13 to descend. The limiting column 13 is inserted into the limiting slot 14 to limit the rotating disc 114.
[0024] With reference to Figure 2 The outer wall of the dosing pipe 2 is symmetrically provided with a guide slot 17. The inner wall of the sliding disc 12 is symmetrically fixedly connected with a guide block 18. The guide slot 17 is slidably connected with the guide block 18. When the sliding disc 12 slides outside the dosing pipe 2, the sliding disc 12 drives the guide block 18 to slide inside the guide slot 17.
[0025] With reference to Figure 4, positioning assembly 15 includes built-in hole 151, reset spring 152 and positioning column 153, the bottom of the second fixed block 6 is fixedly connected with the assembly block 7, the assembly block 7 is provided with built-in hole 151 on one side, the built-in hole 151 is fixedly connected with reset spring 152 on the hole bottom, the other end of reset spring 152 is fixedly connected with positioning column 153, positioning column 153 is slidably connected with built-in hole 151, the other end of positioning column 153 extends out of the side end of assembly block 7 and is provided as an arc, the outer side wall of first connecting flange 3 is fixedly connected with first fixed block 5 symmetrically, the top of first fixed block 5 is provided with assembly groove 8, assembly block 7 is inserted into assembly groove 8, assembly groove 8 is provided with positioning hole 16 on one side in the inside, positioning hole 16 is clamped with positioning column 153, the dosing pipe 2 is combined with the pipeline 1, the first connecting flange 3 is combined with the second connecting flange 4, and meanwhile the assembly block 7 is inserted into the inside of the assembly groove 8, in the process of insertion, the extrusion force is pressed on the arc-shaped end of the positioning column 153, so that the positioning column 153 is pressed to the reset spring 152, the reset spring 152 is compressed, and the positioning column 153 is retracted into the inside of the built-in hole 151, when the positioning column 153 moves to the positioning hole 16, the reset spring 152 resets, and the positioning column 153 pops out and is clamped with the positioning hole 16.
[0026] The use principle and advantages are as follows: firstly, the dosing pipe 2 is combined with the pipeline 1, the first connecting flange 3 is combined with the second connecting flange 4, and meanwhile the assembly block 7 is inserted into the inside of the assembly groove 8, in the process of insertion, the extrusion force is pressed on the arc-shaped end of the positioning column 153, so that the positioning column 153 is pressed to the reset spring 152, the reset spring 152 is compressed, and the positioning column 153 is retracted into the inside of the built-in hole 151, when the positioning column 153 moves to the positioning hole 16, the reset spring 152 resets, and the positioning column 153 pops out and is clamped with the positioning hole 16, then the sliding disc 12 is pushed upwards, the limiting column 13 is inserted into the limiting groove 14, the limiting of the rotating disc 114 is ended, the rotating disc 114 is rotated, the rotating disc 114 drives the driving gear 111 to rotate through the connecting column 113, the driving gear 111 drives the driven gear 112 to rotate, so that the rotating column 91 rotates, and meanwhile the first threaded hole 92 rotates, so that the threaded rod 93 is screw-transmitted with the first threaded hole 92, the threaded rod 93 is screw-connected with the first threaded hole 92 on the first connecting flange 3 by descending control.
[0027] The utility model discloses can replace the traditional bolt mode of operating one by one, makes the fastening process only needs once operation, improves the connection efficiency greatly, reduces manual operation time and labor intensity, and ensures that the connection stress is even, effectively avoids the problem of not being tight because of fastening sequence, enhances the system's leakproofness, reduces the medicine liquid leakage risk, guarantees the ship ballast water system operation safety.
Claims
1. A connection structure of a ship ballast water system dosing line, comprising a pipeline (1) and a dosing pipe (2), characterized in that: The pipeline (1) is fixedly connected with a first connecting flange (3) outside, the dosing pipe (2) is fixedly connected with a second connecting flange (4) at the bottom, the top of the second connecting flange (4) is symmetrically provided with a fixing assembly (9), the outer side wall of the second connecting flange (4) is fixedly connected with a second fixing block (6) symmetrically, and the bottom of the second fixing block (6) is provided with a positioning assembly (15). The fixing assembly (9) comprises a rotating column (91), a first threaded hole (92), a threaded rod (93) and a plug (94), the top of the second connecting flange (4) is rotatably connected with a rotating column (91) symmetrically, the top of the rotating column (91) is provided with a first threaded hole (92), the first threaded hole (92) penetrates the second connecting flange (4), the first threaded hole (92) is internally threadedly connected with a threaded rod (93), the top of the threaded rod (93) is fixedly connected with a plug (94), and the outer side of the rotating column (91) is provided with a transmission assembly (11).
2. The connection structure of a ship ballast water system dosing line according to claim 1, characterized in that: The top of the first connecting flange (3) is symmetrically provided with a second threaded hole (10), and the threaded rod (93) is in threaded connection with the second threaded hole (10).
3. The connection structure of a ship ballast water system dosing line according to claim 1, characterized in that: The transmission assembly (11) comprises a driving gear (111), a driven gear (112), a connecting column (113) and a rotating disc (114), the outer side of the dosing pipe (2) is rotatably provided with a driving gear (111), the outer side of the rotating column (91) is fixedly provided with a driven gear (112), the driven gear (112) and the driving gear (111) are in meshing connection, the top of the driving gear (111) is fixedly connected with a connecting column (113) symmetrically, the outer side of the dosing pipe (2) is rotatably provided with a rotating disc (114), and the top of the connecting column (113) is fixedly connected with the bottom of the rotating disc (114).
4. The connection structure of a ballast water system dosing line of a ship according to claim 3, characterized in that: The outer side of the dosing pipe (2) is slidably connected with a sliding disc (12), the bottom of the sliding disc (12) is fixedly connected with a limiting column (13) symmetrically, the top of the rotating disc (114) is symmetrically provided with a limiting groove (14), and the limiting column (13) and the limiting groove (14) are in plug connection.
5. The connection structure of a ballast water system dosing line of a ship according to claim 4, characterized in that: The outer side wall of the dosing pipe (2) is symmetrically provided with a guide groove (17), and the inner wall of the sliding disc (12) is fixedly connected with a guide block (18) symmetrically.
6. The connection structure of a ballast water system dosing line of a ship according to claim 1, characterized in that: The positioning assembly (15) comprises an embedded hole (151), a reset spring (152) and a positioning column (153), the bottom of the second fixing block (6) is fixedly connected with an assembly block (7), one side of the assembly block (7) is provided with an embedded hole (151), the bottom of the embedded hole (151) is fixedly connected with a reset spring (152), the other end of the reset spring (152) is fixedly connected with a positioning column (153), the positioning column (153) and the embedded hole (151) are in sliding connection, and the other end of the positioning column (153) extends out of the side end of the assembly block (7) and is arc-shaped.
7. The connection structure of a ballast water system dosing line of a ship according to claim 6, characterized in that: The outer side wall of the first connecting flange (3) is symmetrically fixed with a first fixed block (5), a assembly groove (8) is arranged on the top of the first fixed block (5), the assembly groove (8) is inserted with the assembly block (7), a positioning hole (16) is arranged on the inner side of the assembly groove (8), and the positioning hole (16) is clamped with the positioning column (153).