A marine seawater pump fault monitoring device

Abstract

The present invention provides a fault monitoring device for a ship seawater pump, which includes a monitoring device body, a pump body and a water delivery pipe. The monitoring device body includes a bracket, a water leakage monitoring component, a collection component and a vibration monitoring component. The water leakage monitoring component is installed at the top of the bracket. The water delivery pipe is fixedly installed at one end of the pump body. The connection flange and the bottom of the water delivery pipe are provided with a collection component. The middle position of the collection component is partially communicated with the water leakage monitoring component. The fault monitoring device for the ship seawater pump is provided with a water leakage monitoring component through the bracket. By arranging the collection pipe and the diversion pipe along the water delivery pipe of the pump body, the monitoring range is expanded and the equipment cost is saved. The bottom of the water leakage monitoring component is communicated with the drain pipe through the monitoring pipe. By using the current limiting effect of the valve, the triggering sensitivity to leakage can be controlled, and the problems of false triggering or failure to trigger the alarm in time can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fault monitoring, and particularly to a fault monitoring device for a marine seawater pump. Background Art

[0002] The seawater pump is applicable to fire fighting, equipment heat dissipation, seawater desalination on offshore platforms or ships, and can also be used as a ground-source heat pump air conditioner for heating in coastal areas to realize uses such as seawater aquaculture. The seawater pump has advantages such as low noise, high efficiency, and power saving.

[0003] The seawater pump is mainly used for pumping and transporting seawater. Since seawater has certain corrosiveness and a relatively high impurity content, the failure rate of the seawater pump is relatively high. In the prior art, manual inspections need to be carried out frequently, which is inefficient and prone to omissions. On the other hand, when using electronic devices such as vibration sensors to monitor the vibration state and leakage state of the seawater pump itself, the monitoring function is only realized within the installation area of the monitoring sensor device, and the monitoring range is limited. For monitoring large seawater pump equipment, multiple monitoring points need to be arranged, which increases the equipment cost. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a fault monitoring device for a marine seawater pump to solve the problems raised in the above background art. The present invention can automatically monitor the leakage and the vibration state of the equipment for a long time, has a large monitoring range, saves equipment costs, and has high accuracy.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A fault monitoring device for a marine seawater pump includes a monitoring device body, a pump body, and a water delivery pipe. The monitoring device body includes a bracket, a leakage monitoring component, a collection component, and a vibration monitoring component. The leakage monitoring component is installed at the top of the bracket. The water delivery pipe is fixedly installed at one end of the pump body, and each water delivery pipe is docked and sealed through a connecting flange. The collection component is installed at the bottom of the connecting flange and the water delivery pipe. The middle position of the collection component is partially communicated with the leakage monitoring component. Positioning collar rings are installed at both ends of the water delivery pipe. The vibration monitoring component is installed at the bottom of the positioning collar ring. A vibration sensor is filled inside the vibration monitoring component, and one end of the vibration sensor is integrally fixed with the end of the collection component.

[0006] Furthermore, a bottom plate is installed at the bottom of the bracket. Support plates are arranged on both sides of the top of the bottom plate. The leakage monitoring component is installed at the middle position between the two support plates. A support collar is installed at the top of the support plate.

[0007] Furthermore, the support retaining ring is installed at the bottom of the water delivery pipe, and the support retaining ring is integrally semicircular in structure, and the collection assembly passes through the inside of the support retaining ring.

[0008] Furthermore, the water leakage monitoring assembly includes a drain pipe and a monitoring pipe. The drain pipe is arranged at the end of the monitoring pipe, a valve is installed on the surface of the drain pipe, and the top of the monitoring pipe is partially communicated with the collection assembly.

[0009] Furthermore, a water level monitoring module and an alarm are respectively installed on the side of the monitoring pipe, and the monitoring probe of the water level monitoring module is partially embedded into the inside of the monitoring pipe. The end of the drain pipe is communicated with the external space.

[0010] Furthermore, the collection assembly includes a diversion pipe and a collection pipe. The diversion pipe is installed at the bottom of the collection pipe. Vibration monitoring assemblies are fixedly installed at both ends of the collection pipe. The top of the collection pipe is in contact with the bottom of the water delivery pipe.

[0011] Furthermore, collection holes are formed in the surface of the collection pipe, a one-way film is attached to the inner side of the collection holes, through holes are formed between the collection pipe and the diversion pipe, and the inside of the diversion pipe is partially communicated with the monitoring pipe.

[0012] Furthermore, a collection ring is installed at the bottom of the connecting flange. An arc-shaped opening is formed in the inner side of the collection ring. A butt joint pipe is arranged at the bottom of the collection ring, and the butt joint pipe is communicated with the inside of the diversion pipe.

[0013] Furthermore, the vibration monitoring assembly includes a vibration sensor and a fixing stud. One end of the vibration sensor is provided with a support shaft. One end of the support shaft is fixedly installed at the end of the collection pipe. A butt joint plate is installed on the side of the positioning collar.

[0014] Furthermore, a clamping groove is formed in the bottom of the positioning collar. The vibration sensor is inserted into the inside of the clamping groove. A threaded sleeve is sleeved on the surface of the fixing stud, and the surface of the vibration sensor is in contact with the inside of the clamping groove.

[0015] The beneficial effects of the present invention: A marine seawater pump fault monitoring device of the present invention includes a monitoring device body. The monitoring device body includes a pump body, a water delivery pipe, a connecting flange, a bracket, a water leakage monitoring assembly, a collection assembly, a vibration monitoring assembly, a bottom plate, a support plate, a support retaining ring, a water level monitoring module, an alarm, a valve, a drain pipe, a monitoring pipe, a diversion pipe, a collection pipe, a butt joint pipe, a collection hole, a positioning collar, a butt joint plate, a collection ring, an arc-shaped opening, a support shaft, a vibration sensor, a fixing stud, a clamping groove, a threaded sleeve, a one-way film, and a through hole.

[0016] The fault monitoring device for the ship's seawater pump is equipped with a leakage monitoring component through a bracket. By laying the collection pipe and the diversion pipe along the water delivery pipe of the pump body, a single leakage monitoring component can be used to monitor the leakage of the water delivery pipe structure within a relatively long range, expanding the monitoring range and saving equipment costs.

[0017] The fault monitoring device for the ship's seawater pump is connected to the bottom of the leakage monitoring component through a monitoring pipe and a drain pipe. By utilizing the flow-limiting effect of the valve, the triggering sensitivity of the leakage state of the entire water delivery pipe can be flexibly controlled, avoiding the phenomenon of false triggering caused by excessive sensitivity or the problem of failure to trigger the leakage alarm in a timely manner due to low sensitivity.

[0018] The fault monitoring device for the ship's seawater pump is equipped with vibration monitoring components at both ends of the collection component. The two ends of the collection component are installed and fixed through positioning collar rings, which can also carry the vibration monitoring components. By utilizing the tight fit of the positioning collar ring itself with the surface of the water delivery pipe, the fit degree of the vibration sensor can be improved, reducing the probability of loosening of the vibration sensor after long-term use and increasing the sensitivity of monitoring. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the external shape of a fault monitoring device for a ship's seawater pump according to the present invention;

[0020] Figure 2 It is a schematic structural diagram of the bracket part of a fault monitoring device for a ship's seawater pump according to the present invention;

[0021] Figure 3 It is a schematic structural diagram of the collection component part of a fault monitoring device for a ship's seawater pump according to the present invention;

[0022] Figure 4 It is a schematic structural diagram of the vibration monitoring component part of a fault monitoring device for a ship's seawater pump according to the present invention;

[0023] Figure 5 It is an internal cross-sectional view of the collection component part of a fault monitoring device for a ship's seawater pump according to the present invention;

[0024] In the figure: 1, pump body; 2, water delivery pipe; 3, connecting flange; 4, bracket; 5, leakage monitoring component; 6, collection component; 7, vibration monitoring component; 8, bottom plate; 9, support plate; 10, support collar; 11, water level monitoring module; 12, alarm; 13, valve; 14, drain pipe; 15, monitoring pipe; 16, diversion pipe; 17, collection pipe; 18, docking pipe; 19, collection hole; 20, positioning collar; 21, docking plate; 22, collection ring; 23, arc-shaped opening; 24, support shaft; 25, vibration sensor; 26, fixing stud; 27, card slot; 28, threaded sleeve; 29, one-way film; 30, through hole. Detailed implementation manners

[0025] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0026] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a fault monitoring device for a marine seawater pump, including a monitoring device body, a pump body 1 and a water delivery pipe 2. The monitoring device body includes a bracket 4, a water leakage monitoring component 5, a collection component 6 and a vibration monitoring component 7. The water leakage monitoring component 5 is installed at the top of the bracket 4. The water delivery pipe 2 is fixedly installed at one end of the pump body 1, and each water delivery pipe 2 is docked and sealed through a connecting flange 3. The connecting flange 3 and the bottom of the water delivery pipe 2 are provided with a collection component 6. The middle position of the collection component 6 is partially communicated with the water leakage monitoring component 5. Positioning collar rings 20 are installed at both ends of the water delivery pipe 2. The vibration monitoring component 7 is installed at the bottom of the positioning collar ring 20. A vibration sensor 25 is filled inside the vibration monitoring component 7. One end of the vibration sensor 25 is fixed as a whole with the end of the collection component 6. This fault monitoring device for a marine seawater pump mainly monitors and processes the vibration state and leakage state of the seawater pump. During installation, first dock multiple water delivery pipes 2 through the connecting flange 3, and determine the monitoring range. Install the collection pipe 17 at the bottom of the water delivery pipe 2 according to the specific monitoring range. Support and position both ends of the collection component 6 through the positioning collar rings 20 at both ends, and install the vibration monitoring component 7 at the bottom of the positioning collar ring 20, so as to realize the vibration detection function for the part of the water delivery pipe 2 of the pump body 1 at both ends of the collection component 6. By monitoring the vibration frequency and amplitude during the operation of the pump body 1, judge the operation state of the seawater pump, and then realize the fault monitoring function. When seawater leakage occurs, the leaked seawater is centrally collected into the leakage monitoring component at the bottom through the collection component 6, and the leakage state is alarmed in time.

[0027] In this embodiment, a bottom plate 8 is installed at the bottom of the bracket 4. Support plates 9 are arranged on both sides of the top of the bottom plate 8. The water leakage monitoring component 5 is installed at the middle position between the two support plates 9. A support collar 10 is installed at the top of the support plate 9. The support collar 10 is installed at the bottom of the water delivery pipe 2, and the support collar 10 is integrally semi-circular in structure. The collection component 6 passes through the inside of the support collar 10. Specifically, this fault monitoring device is fixedly installed through the bottom plate 8, support plates 9 at the bottom and the support collar 10 at the top, and the water leakage monitoring component 5 is arranged at the middle position, which is convenient for centralized collection and discharge treatment of the leaked seawater.

[0028] In this embodiment, the water leakage monitoring component 5 includes a drain pipe 14 and a monitoring pipe 15. The drain pipe 14 is arranged at the end of the monitoring pipe 15. A valve 13 is installed on the surface of the drain pipe 14. The top of the monitoring pipe 15 is partially communicated with the collection component 6. A water level monitoring module 11 and an alarm 12 are respectively installed on the side of the monitoring pipe 15, and the monitoring probe of the water level monitoring module 11 is partially embedded into the interior of the monitoring pipe 15. The end of the drain pipe 14 is communicated with the external space. The bottom of the water leakage monitoring component 5 is communicated through the monitoring pipe 15 and the drain pipe 14. By using the flow-limiting effect of the valve 13, the triggering sensitivity of the leakage state of the entire water delivery pipe 2 can be flexibly controlled, which can avoid the phenomenon of false triggering caused by too high sensitivity or the problem that the leakage alarm cannot be triggered in time due to too low sensitivity. Specifically, after the leaked seawater is collected by the collection component 6 at the top, it is concentrated and diverted into the interior of the monitoring pipe 15. The flow rate of the discharged water is adjusted by the valve 13. Therefore, when the leakage rate of the seawater is greater than the set outflow rate, the seawater will accumulate inside the monitoring pipe 15, and the accumulated water surface will gradually rise until it reaches the water level monitoring module 11. The water level monitoring module 11 monitors the seawater inside the monitoring pipe 15, and after detecting that the water level reaches this position, the alarm 12 can send an alarm to the outside in time for timely maintenance.

[0029] In this embodiment, the collection component 6 includes a diversion pipeline 16 and a collection pipeline 17. The diversion pipeline 16 is installed at the bottom of the collection pipeline 17. Vibration monitoring components 7 are fixedly installed at both ends of the collection pipeline 17. The top of the collection pipeline 17 is in contact with the bottom of the water delivery pipe 2. Collection holes 19 are formed on the surface of the collection pipeline 17. A one-way film 29 is attached to the inner side of the collection holes 19. A through hole 30 is formed between the collection pipeline 17 and the diversion pipeline 16. The interior of the diversion pipeline 16 is partially communicated with the monitoring pipeline 15. A collection ring 22 is installed at the bottom of the connecting flange 3. An arc-shaped opening 23 is formed on the inner side of the collection ring 22. A docking pipeline 18 is arranged at the bottom of the collection ring 22. The docking pipeline 18 is communicated with the interior of the diversion pipeline 16. A leakage monitoring component 5 is installed through a bracket 4. By arranging the collection pipeline 17 and the diversion pipeline 16 along the water delivery pipe 2 of the pump body 1, the leakage monitoring process can be carried out on the water delivery pipe 2 structure within a relatively long range through a single leakage monitoring component 5, expanding the monitoring range and saving the equipment cost. Specifically, according to the layout range of the water delivery pipe 2, the collection pipeline 17 is installed at the bottom of the water delivery pipe 2 and the connecting flange 3. When leakage occurs at any position within this range, the water can flow downward along the surface of the pipeline until it contacts the surface of the collection pipeline 17, and the leaked seawater flows into the interior of the collection pipeline 17 through the collection holes 19 and enters the interior of the diversion pipeline 16 through the through hole 30, and finally enters the interior of the monitoring pipeline 15 from the diversion pipeline 16 to realize the above-mentioned water level monitoring process.

[0030] In this embodiment, the vibration monitoring component 7 includes a vibration sensor 25 and a fixing stud 26. One end of the vibration sensor 25 is provided with a support shaft 24. One end of the support shaft 24 is fixedly installed at the end of the collection pipeline 17. A docking plate 21 is installed on the side of the positioning collar 20. A card slot 27 is formed at the bottom of the positioning collar 20. The vibration sensor 25 is inserted into the interior of the card slot 27. A threaded sleeve 28 is sleeved on the surface of the fixing stud 26. The surface of the vibration sensor 25 is in fit with the interior of the card slot 27. Vibration monitoring components 7 are installed at both ends of the collection component 6. The positioning collar 20 is used to install and fix both ends of the collection component 6, and at the same time, it can also carry the vibration monitoring component 7. By virtue of the tight fit between the positioning collar 20 itself and the surface of the water delivery pipe 2, the fit degree of the vibration sensor 25 can be improved, the probability of loosening of the vibration sensor 25 after long-term use can be reduced, and the monitoring sensitivity can be increased. Specifically, the vibration monitoring component 7 is fixed on the surface of the water delivery pipe 2 through the positioning collar 20. The positioning collar 20 is in tight fit with the surface of the water delivery pipe 2 through the docking plate 21. Therefore, the vibration generated during the operation of the seawater pump will be transmitted to the vibration sensor 25 through the positioning collar 20, and then the operation state of the seawater pump is monitored through the vibration sensor 25. Moreover, there is a certain distance between the installations of the two vibration sensors 25. Therefore, by judging the degree of vibration abnormality between the two vibration sensors 25, the specific position of the fault in this fault monitoring device can be judged.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0032] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fault monitoring device for a ship seawater pump, comprising a monitoring device body, a pump body (1) and a water delivery pipe (2), characterized in that: The main body of the monitoring device includes a bracket (4), a water leakage monitoring component (5), a collection component (6), and a vibration monitoring component (7). The water leakage monitoring component (5) is installed at the top of the bracket (4). The water delivery pipe (2) is fixedly installed at one end of the pump body (1), and each water delivery pipe (2) is docked and sealed through a connecting flange (3). The connecting flange (3) and the bottom of the water delivery pipe (2) are provided with a collection component (6). The middle position of the collection component (6) is partially communicated with the water leakage monitoring component (5). Positioning collars (20) are installed at both ends of the water delivery pipe (2), and a vibration monitoring component (7) is installed at the bottom of the positioning collar (20). A vibration sensor (25) is filled inside the vibration monitoring component (7). One end of the vibration sensor (25) is integrally fixed with the end of the collection component (6). A bottom plate (8) is installed at the bottom of the bracket (4). Support plates (9) are arranged on both sides of the top of the bottom plate (8). The water leakage monitoring component (5) is installed at the middle position between the two support plates (9). A support collar (10) is installed at the top of the support plate (9). The water leakage monitoring component (5) includes a drain pipe (14) and a monitoring pipe (15). The drain pipe (14) is arranged at the end of the monitoring pipe (15). A valve (13) is installed on the surface of the drain pipe (14). The top of the monitoring pipe (15) is partially communicated with the collection component (6). The collection component (6) includes a diversion pipe (16) and a collection pipe (17). The diversion pipe (16) is installed at the bottom of the collection pipe (17). Vibration monitoring components (7) are fixedly installed at both ends of the collection pipe (17). The top of the collection pipe (17) is in contact with the bottom of the water delivery pipe (2). Collection holes (19) are formed on the surface of the collection pipe (17). A one-way film (29) is attached to the inner side of the collection hole (19). A through hole (30) is formed between the collection pipe (17) and the diversion pipe (16). The inside of the diversion pipe (16) is partially communicated with the monitoring pipe (15). A collection ring (22) is installed at the bottom of the connecting flange (3). An arc-shaped opening (23) is formed on the inner side of the collection ring (22). A docking pipe (18) is arranged at the bottom of the collection ring (22). The docking pipe (18) is communicated with the inside of the diversion pipe (16). The vibration monitoring component (7) includes a vibration sensor (25) and a fixing stud (26). One end of the vibration sensor (25) is provided with a support shaft (24). One end of the support shaft (24) is fixedly installed at the end of the collection pipe (17). A docking plate (21) is installed on the side of the positioning collar (20). A card slot (27) is formed at the bottom of the positioning collar (20). The vibration sensor (25) is inserted into the inside of the card slot (27). A threaded sleeve (28) is sleeved on the surface of the fixing stud (26).The surface of the vibration sensor (25) fits against the inside of the card slot (27).

2. The failure monitoring device for a ship seawater pump according to claim 1, characterized in that: The supporting retaining ring (10) is installed at the bottom of the water delivery pipe (2), and the supporting retaining ring (10) is integrally in a semi-circular structure. The collecting assembly (6) passes through the inside of the supporting retaining ring (10).

3. The fault monitoring device for a ship seawater pump according to claim 1, wherein: A water level monitoring module (11) and an alarm (12) are respectively installed on the side of the monitoring pipe (15), and the monitoring probe part of the water level monitoring module (11) is embedded into the inside of the monitoring pipe (15). The end of the drain pipe (14) communicates with the external space.

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