Seawater pipeline system for external fire fighting of tug

Abstract

A seawater pipeline system for external fire fighting of a tug is characterized by comprising a main machine seawater pump, the main machine seawater pump is connected with a right main machine seawater suction port, an outlet of the main machine seawater pump is connected with an external fire fighting gearbox cooler, the outlet of the main machine seawater pump is connected with an air cooler, and the air cooler is connected with a lubricating oil cooler. The lubricating oil cooler is connected with the fresh water cooler, the fresh water cooler is connected with the right main engine outboard valve, and the fresh water cooler is connected with the circulating water tank; through pipeline transformation, the oil temperature of the fire-fighting gear box is stabilized within the normal working range of 35-45 DEG C, a cooler water pipe is not blocked any more, the dredging frequency is reduced, optimization of a fire-fighting gear box cooling system is achieved, by additionally arranging the water pipeline and the one-way stop valve, the problem that the oil temperature is too high is solved, blocking of the cooler water pipe is avoided, and the service life of the fire-fighting gear box is prolonged. The maintenance frequency and cost are reduced, the operation efficiency and safety of the ship are improved, and the maintenance cost and the labor intensity are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship pipelines, in particular to a seawater pipeline system for external fire fighting of tugboats. Background Art

[0002] The fire-fighting and tugboat has good propulsion capability, stability, and maneuverability. It has the basic functions of a fire-fighting and tugboat (with FIFI1 firefighting) and adopts a fully rotating Z-type rudder propeller device. It is mainly used to assist and monitor large oil tankers in berthing and loading and unloading operations, and to assist in berthing large container ships. If necessary, it can also carry out certain firefighting and rescue operations on distressed ships in the sea area around the port. The stability meets the requirements of towing operations in offshore navigation areas. The fire pump gearbox has the functions of speed increase and clutch while transmitting the working torque, and is widely used in various ships with firefighting functions;

[0003] However, the existing fire gearbox of the fire-fighting and tugboat is changed to an internal circulation seawater cooling system in winter. The outlet valve of the fire gearbox cooler needs to be closed, which causes the oil temperature to be too high and the cooler water pipe to be blocked, resulting in the cooling water not being able to circulate effectively, thereby increasing the oil temperature and causing the cooler water pipe to be blocked, seriously affecting the safe navigation of the ship. In order to solve the above problems, a seawater pipeline system for external fire fighting of tugboat is proposed. Utility Model Content

[0004] According to the above existing technical problems, the utility model provides a seawater pipeline system for external firefighting of a tugboat, which is characterized by comprising a main engine seawater pump, a right main engine seawater suction port, an external firefighting gearbox cooler, a circulating water tank, an air cooler, a lubricating oil cooler, a fresh water cooler, and a right main engine outboard valve, wherein the main engine seawater pump is connected to the right main engine seawater suction port, the outlet of the main engine seawater pump is connected to the external firefighting gearbox cooler, the outlet of the main engine seawater pump is connected to the air cooler, the air cooler is connected to the lubricating oil cooler, the lubricating oil cooler is connected to the fresh water cooler, the fresh water cooler is connected to the right main engine outboard valve, and the fresh water cooler is connected to the circulating water tank;

[0005] Furthermore, the circulating water tank is connected to the inlet of the main engine seawater pump through a pipeline, the outlet of the main engine seawater pump has two branches, one of which is connected to the external fire gear box cooler through a pipeline, and the other is connected to the fresh water cooler through an air cooler and a lubricating oil cooler, and the outlet of the water cooler has two branches, one of which enters the circulating water tank, and the other is connected to the right main engine outboard valve;

[0006] Furthermore, the outlet of the external fire-fighting gearbox cooler has two branches, one of which leads directly to the outside of the ship, and the other leads to the circulating water tank through a pipeline and a one-way stop valve.

[0007] Beneficial effects of the utility model:

[0008] Through pipeline transformation, the utility model stabilizes the oil temperature of the fire gearbox within the normal working range of 35 to 45 degrees Celsius, the cooler water pipe is no longer blocked, the number of dredging times is reduced, and the optimization of the cooling system of the fire gearbox is realized. By adding water pipelines and one-way stop valves, not only the problem of excessive oil temperature is solved, but also the blockage of the cooler water pipe is avoided, the number of maintenance times and costs are reduced, the operation efficiency and safety of the ship are improved, the maintenance cost and labor intensity are reduced, and at the same time, the maintenance cost of the ship is reduced and the operation efficiency is improved, which has significant economic benefits. At the same time, by improving the safety performance of the ship, the risk of safety accidents caused by equipment failure is reduced, and the ship's ability to respond to emergencies is enhanced, which has important social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of the seawater pipeline system for external firefighting of the tugboat of the utility model;

[0010] As shown in the figure: 1 main engine seawater pump, 2 right main engine seawater suction port, 3 external fire fighting gear box cooler, 4 circulating water tank, 5 air cooler, 6 lubricating oil cooler, 7 fresh water cooler, 8 right main engine outboard valve. DETAILED DESCRIPTION

[0011] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0014] Example 1

[0015] The utility model provides a seawater pipeline system for external firefighting of a tugboat, which is characterized by comprising a main engine seawater pump 1, a right main engine seawater suction port 2, an external firefighting gearbox cooler 3, a circulating water tank 4, an air cooler 5, a lubricating oil cooler 6, a fresh water cooler 7, and a right main engine outboard valve 8. The main engine seawater pump 1 is connected to the right main engine seawater suction port 2, the outlet of the main engine seawater pump 1 is connected to the external firefighting gearbox cooler 3, the outlet of the main engine seawater pump 1 is connected to the air cooler 5, the air cooler 5 is connected to the lubricating oil cooler 6, the lubricating oil cooler 6 is connected to the fresh water cooler 7, the fresh water cooler 7 is connected to the right main engine outboard valve 8, and the fresh water cooler 7 is connected to the circulating water tank 4;

[0016] Furthermore, the circulating water tank 4 is connected to the inlet of the main engine seawater pump 1 through a pipeline, and the outlet of the main engine seawater pump 1 has two branches, one of which is connected to the external fire gear box cooler 3 through a pipeline, and the other is connected to the fresh water cooler 7 through the air cooler 5 and the lubricating oil cooler 6. The outlet of the water cooler has two branches, one of which enters the circulating water tank 4, and the other is connected to the right main engine outboard valve 8;

[0017] Furthermore, the outlet of the external fire gear box cooler 3 has two branches, one of which leads directly to the outside of the ship, and the other leads to the circulating water tank 4 through a pipeline and a one-way stop valve.

[0018] Example 2

[0019] When in use, the main engine seawater pump 1 sucks seawater from the right main engine seawater suction port 2. After the seawater leaves the main engine seawater pump 1, part of it enters the air cooler 5, and enters the fresh water cooler 7 along the lubricating oil cooler 6, and the other part directly enters the external fire-fighting gear box cooler 3 along the pipeline. Part of the seawater in the fresh water cooler 7 enters the circulating water tank 4, and the other part is discharged to the outside through the right main engine outboard valve 8. Part of the seawater discharged from the external fire-fighting gear box cooler 3 is discharged overboard, and the other part enters the circulating water tank 4 through the pipeline and the one-way stop valve. The seawater in the circulating water tank 4 enters the main engine seawater pump 1 again through the pipeline to complete the cycle.

[0020] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. The seawater pipeline system for external firefighting of tugboats is characterized by: It includes a main engine seawater pump, a right main engine seawater suction port, an external fire-fighting gearbox cooler, a circulating water tank, an air cooler, a lubricating oil cooler, a fresh water cooler, and a right main engine outboard valve. The main engine seawater pump is connected to the right main engine seawater suction port, the outlet of the main engine seawater pump is connected to the external fire-fighting gearbox cooler, the outlet of the main engine seawater pump is connected to the air cooler, the air cooler is connected to the lubricating oil cooler, the lubricating oil cooler is connected to the fresh water cooler, the fresh water cooler is connected to the right main engine outboard valve, and the fresh water cooler is connected to the circulating water tank.

2. The seawater pipeline system for external firefighting of a tugboat according to claim 1 is characterized in that: The circulating water tank is connected to the inlet of the main engine seawater pump through a pipeline. The outlet of the main engine seawater pump has two branches, one of which is connected to the external fire-fighting gear box cooler through a pipeline, and the other is connected to the fresh water cooler through an air cooler and a lubricating oil cooler. The outlet of the water cooler has two branches, one of which enters the circulating water tank and the other leads to the right main engine outboard valve.

3. The seawater pipeline system for external firefighting of a tugboat according to claim 2 is characterized in that: The outlet of the external fire gear box cooler has two branches, one of which leads directly to the outside of the ship, and the other leads to the circulating water tank through a pipeline and a one-way stop valve.

Images