Island remote system diesel generator cooling device

Abstract

The utility model relates to the field of diesel generators, and aims to solve the technical problems that an existing diesel generator adopts an air cooling mode to cool a generator set, an air cooling unit has the defects of large noise and poor cooling effect, and particularly when the environment temperature is higher, the air cooling unit is difficult to cool, and the power consumption of the air cooling unit is higher. According to the technical scheme, the island far-system diesel generator cooling device comprises a rack and an expansion water tank arranged at the top of the rack, a horizontal supporting plate is arranged at the position, close to the middle of a rack body, of the rack, a heat exchanger is installed on the upper portion of the horizontal supporting plate body, and water pumps are installed at the bottom of the rack in parallel. The cooling device is compact in structure, is modularized equipment, is convenient to mount, does not need to independently arrange equipment in the mounting process, and is suitable for cooling diesel generating sets used in ships, drilling platforms and islands.

Description

Technical Field

[0001] The utility model relates to the field of diesel generators, in particular to a cooling device for an island remote diesel generator. Background Art

[0002] Diesel generator sets are widely used across various industries due to their light weight, simple structure, and high power density. They generally consist of three main components: a diesel engine, a generator, and a control system. The diesel engine is the core, providing the driving force. Currently, the highest thermal efficiency of commercial diesel engines is 43%. Exhaust gases and cooling water account for over 41% of the total energy, with exhaust gas emissions accounting for the largest proportion, approximately 30%. Recycling exhaust gas energy would significantly improve the thermal efficiency of diesel generator sets. Temperature rise has the greatest impact on the rated power and lifespan of diesel generator sets. For typical generator sets, if the ambient temperature exceeds 40°C, the rated power and lifespan will decrease. Research has found that if the ambient temperature exceeds 60°C, the generator lifespan will decrease by 14% and the power by 12%.

[0003] In actual use, most diesel generator sets are used in harsh environments, generally with high temperatures and high humidity. This is particularly true for diesel generator sets on islands and ships. Generator windings, operating in suboptimal conditions for long periods of time, significantly reduce their lifespan. Furthermore, actual power is often much lower than the rated power, causing the generator set to lose power.

[0004] Existing diesel generators use air cooling to cool the generator set, but air-cooled units have the disadvantages of high noise and poor cooling effect. Especially when the ambient temperature is high, the air-cooled unit is difficult to cool down the temperature, and the air-cooled unit also has high power consumption. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide an island remote diesel generator cooling device.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is a cooling device for an island remote diesel generator, comprising a frame and an expansion water tank arranged on the top of the frame, a horizontal support plate is provided near the middle of the frame, a heat exchanger is installed on the upper part of the horizontal support plate, a water pump is provided in parallel at the bottom of the frame, and the pump shaft of the water pump is connected to the drive shaft of the drive motor;

[0007] The water pump inlet is connected to the cooling water inlet pipe, and the cooling water inlet pipe body is installed with an inlet valve;

[0008] The water pump outlet is connected to the cooling water outlet pipe, the cooling water outlet pipe body is installed with an outlet valve, the cooling water outlet pipes of the two water pumps are connected in parallel to the cooling water inlet of the heat exchanger through a pipeline, and the cooling water outlet of the heat exchanger is connected to the cooling water outlet pipe;

[0009] The heat exchanger coolant inlet is connected to the coolant inlet pipe, and the heat exchanger coolant outlet is connected to the coolant outlet pipe;

[0010] The top of the coolant water inlet pipe body is connected to the bottom of the expansion water tank through a supplementary water pipe.

[0011] As an improvement, a control box is installed on the side wall of the frame, and the control box is used to control the start and stop of the drive motor.

[0012] As an improvement, a water level gauge is provided on the side wall of the expansion water tank.

[0013] As an improvement, the bottom of the water pump is connected to the bottom of the frame through a shock-absorbing support.

[0014] As an improvement, the water pump is a centrifugal water pump.

[0015] As an improvement, the heat exchanger is configured as a shell and tube heat exchanger.

[0016] Beneficial effects of the utility model

[0017] The compact structure and modular equipment make installation easy. No separate equipment layout is required during installation. It is suitable for cooling diesel generator sets used on ships, drilling platforms, and islands. Compared with existing air-cooled units, it has low noise, good cooling effect and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the cooling device from a first perspective;

[0019] Figure 2 It is a schematic structural diagram of the cooling device from the second perspective.

[0020] As shown in the figure: 1. Frame, 101. Support plate, 2. Control box, 3. Heat exchanger, 301. Cooling liquid inlet pipe, 302. Cooling liquid outlet pipe, 303. Cooling water outlet pipe, 304. Cooling water inlet pipe, 4. Water pump, 401. Cooling water inlet pipe, 402. Cooling water outlet pipe, 403. Inlet valve, 404. Outlet valve, 5. Drive motor, 6. Supplementary water pipe, 7. Expansion tank, 8. Water level gauge, 9. Shock-absorbing support. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "right", "vertical", "horizontal", "inner", "outer" and the like indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the utility model is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] In the description of the embodiments of the present invention, “a plurality of” means at least 2.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] The following is a further detailed description of the island remote diesel generator cooling device of the present invention in conjunction with the accompanying drawings.

[0027] Combined with attachment Figure 1-Figure 2A cooling device for an island remote diesel generator comprises a frame 1 and an expansion water tank 7 arranged on the top of the frame 1. A horizontal support plate 101 is provided near the middle of the frame 1. A heat exchanger 3 is installed on the upper part of the horizontal support plate 101. A water pump 4 is installed in parallel at the bottom of the frame 1. The pump shaft of the water pump 4 is connected to the drive shaft of the drive motor 5.

[0028] The inlet of the water pump 4 is connected to the cooling water inlet pipe 401, and the cooling water inlet pipe 401 is installed with an inlet valve 403;

[0029] The outlet of the water pump 4 is connected to the cooling water outlet pipe 402, and the cooling water outlet pipe 402 is installed with an outlet valve 404. The cooling water outlet pipes 402 of the two water pumps 4 are connected in parallel and connected to the cooling water inlet of the heat exchanger 3 through a pipeline. The cooling water outlet of the heat exchanger 3 is connected to the cooling water outlet pipe 303;

[0030] The coolant inlet of the heat exchanger 3 is connected to the coolant inlet pipe 301, and the coolant outlet of the heat exchanger 3 is connected to the coolant outlet pipe 302;

[0031] The top of the coolant inlet pipe 301 is connected to the bottom of the expansion tank 7 through the supplementary water pipe 6.

[0032] During the specific implementation of the present invention, a control box 2 is installed on the side wall of the frame 1 , and the control box 2 is used to control the start and stop of the drive motor 5 .

[0033] During the specific implementation of the present invention, a water level gauge 8 is provided on the side wall of the expansion water tank 7 .

[0034] During the specific implementation of the present invention, the bottom of the water pump 4 is connected to the bottom of the frame 1 through the shock-absorbing support 9 .

[0035] During the specific implementation of the present invention, the water pump 4 is a centrifugal water pump.

[0036] During the specific implementation of the present invention, the heat exchanger 3 is configured as a shell and tube heat exchanger.

[0037] During the specific implementation of the present invention, the water inlet of the cooling water inlet pipe 401 and the water outlet of the cooling water outlet pipe 402 are both connected to seawater.

[0038] During the specific implementation of the present invention, the cooling water inlet pipe 401 connected to the inlet of the water pump 4 is connected to the external seawater. When the two water pumps 4 are working normally, one is in operation and the other is on standby. The inlet valve 403 and the outlet valve 404 of the standby water pump are kept in a normally open state. The check valve provided at the outlet of the water pump can prevent the standby pump from reversing. The outlet of the water pump 1 introduces seawater into the heat exchanger 3 through the cooling water outlet pipe 402 for heat exchange. The seawater with increased temperature passes through the cooling water outlet pipe 303 and is discharged to the sea. The coolant return water of the motor has a higher temperature and enters the heat exchanger 3 through the coolant inlet pipe 301. The cooled coolant then enters the motor through the coolant outlet pipe 302 to absorb heat.

[0039] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. An island remote diesel generator cooling device, characterized by: The invention comprises a frame (1) and an expansion water tank (7) arranged on the top of the frame (1); the frame (1) is provided with a horizontal support plate (101) near the middle of the frame body; a heat exchanger (3) is installed on the upper part of the horizontal support plate (101); a water pump (4) is provided at the bottom of the frame (1); a pump shaft of the water pump (4) is connected to a drive shaft of a drive motor (5); The inlet of the water pump (4) is connected to the cooling water inlet pipe (401), and the cooling water inlet pipe (401) is installed with an inlet valve (403); The outlet of the water pump (4) is connected to the cooling water outlet pipe (402), and the cooling water outlet pipe (402) is installed with an outlet valve (404). The cooling water outlet pipes (402) of the two water pumps (4) are connected in parallel and connected to the cooling water inlet of the heat exchanger (3) through a pipeline. The cooling water outlet of the heat exchanger (3) is connected to the cooling water outlet pipe (402); The cooling liquid inlet of the heat exchanger (3) is connected to the cooling liquid water inlet pipe (301), and the cooling liquid outlet of the heat exchanger (3) is connected to the cooling liquid water outlet pipe (302); The top of the cooling liquid water inlet pipe (301) is connected to the bottom of the expansion water tank (7) via a supplementary water pipe (6).

2. The island remote diesel generator cooling device according to claim 1, characterized in that: A control box (2) is installed on the side wall of the frame (1), and the control box (2) is used to control the start and stop of the drive motor (5).

3. The island remote diesel generator cooling device according to claim 1, characterized in that: A water level gauge (8) is provided on the side wall of the expansion water tank (7).

4. The island remote diesel generator cooling device according to claim 1, characterized in that: The bottom of the water pump (4) is connected to the bottom of the frame (1) via a shock-absorbing support (9).

5. The island remote diesel generator cooling device according to claim 1, characterized in that: The water pump (4) is a centrifugal water pump.

6. The island remote diesel generator cooling device according to claim 1, characterized in that: The heat exchanger (3) is configured as a shell and tube heat exchanger.

7. The island remote diesel generator cooling device according to claim 1, characterized in that: The water inlet of the cooling water inlet pipe (401) and the water outlet of the cooling water outlet pipe (402) are both connected to seawater.

8. The island remote diesel generator cooling device according to claim 1, characterized in that: The outlet of the water pump (4) is provided with a check valve.

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