Diesel generating set and ship

Abstract

The utility model discloses a diesel generating set and a ship, and belongs to the technical field of diesel generators, the diesel generating set comprises a diesel engine, a generator, a lubricating oil assembly and a cooling assembly; in the application, the lubricating oil assembly comprises a lubricating oil pipeline, the lubricating oil pipeline is connected with a first to-be-lubricated component in the diesel engine to provide lubricating oil for the first to-be-lubricated component, and the lubricating oil pipeline is connected with a second to-be-lubricated component in the generator to provide lubricating oil for the second to-be-lubricated component; in the application, the cooling assembly comprises a first cooler and a cold supply pipeline, the first cooler is connected into the lubricating oil pipeline, the first cooler cools lubricating oil flowing through the first cooler by connecting a refrigerant, and the cold supply pipeline is connected with the diesel engine and the first cooler so as to convey the refrigerant to the diesel engine and the first cooler; the purpose that the diesel engine and the generator share one lubricating oil assembly and one cooling assembly is achieved, the pipeline structure is simplified, and the system complexity of a diesel engine unit is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of diesel generators, and in particular relates to a diesel generator set and a ship. Background Art

[0002] At present, the lubricating oil and cooling systems of the diesel engine and the generator in the diesel generator set are two independent systems. That is, the lubricating oil and cooling system of the diesel engine is only responsible for the lubrication and cooling of the diesel engine, and the lubricating oil and cooling system of the generator is only responsible for the lubrication and cooling of the generator. This not only increases the complexity and cost of the system, but also increases the failure rate of the generator set and reduces reliability. Utility Model Content

[0003] Purpose of the utility model: The present application discloses a diesel generator set and a ship, aiming to solve the technical problem in the prior art that the lubricating oil system and cooling system of the diesel engine and the generator are independent of each other and the system complexity is high.

[0004] Technical solution: In the first aspect, the present application provides a diesel generator set, comprising

[0005] A diesel engine, the diesel engine comprising a first component to be lubricated;

[0006] A generator, the generator comprising a second component to be lubricated;

[0007] a lubricating oil assembly, the lubricating oil assembly comprising a lubricating oil pipeline, the lubricating oil pipeline being connected to the first component to be lubricated and the second component to be lubricated, respectively, the lubricating oil assembly being configured to provide lubricating oil to the first component to be lubricated and the second component to be lubricated through the lubricating oil pipeline;

[0008] A cooling assembly, the cooling assembly comprising:

[0009] a first cooler, the first cooler being connected to the lubricating oil pipeline, and the first cooler being configured to cool the lubricating oil through a refrigerant;

[0010] A cooling pipeline is connected to the diesel engine and the first cooler, and the cooling pipeline is configured to transport a refrigerant.

[0011] In some embodiments, along the flow direction of the lubricating oil, the first cooler is located between the second component to be lubricated and the first component to be lubricated, so as to cool the lubricating oil delivered to the second component to be lubricated.

[0012] In some embodiments, the cooling assembly further comprises:

[0013] a cooling pump, the cooling pump being connected to the cooling pipeline, the cooling pump being configured to provide the refrigerant to the cooling pipeline;

[0014] A cooling return pipeline is connected to the first cooler, and the cooling return pipeline is configured to transport the refrigerant after heat exchange.

[0015] In some embodiments, the first cooler comprises:

[0016] a first inlet, the first inlet being connected to the lubricating oil pipeline, and the first inlet being configured to input lubricating oil to be cooled;

[0017] a first outlet, the first outlet being connected to the second part to be lubricated, and the first outlet being configured to output the cooled lubricating oil;

[0018] a second inlet, the second inlet being connected to the cooling pipeline, and the second inlet being configured to input the refrigerant;

[0019] The second outlet is connected to the cooling return pipeline, and the second outlet is configured to output the refrigerant after heat exchange.

[0020] In some embodiments, the first cooler is a generator oil cooler, and the first cooler is disposed in the generator.

[0021] In some embodiments, the cooling pump is a diesel engine belt pump, and the cooling pump is arranged in the diesel engine.

[0022] In some embodiments, the cooling assembly further includes a second cooler connected to the generator, and the second cooler is configured to cool the generator.

[0023] In some embodiments, the second cooler comprises:

[0024] a third inlet, the third inlet being connected to the cooling pipeline, and the third inlet being configured to input the refrigerant;

[0025] The third outlet is connected to the cooling return pipeline, and the third outlet is configured to output the refrigerant after heat exchange.

[0026] In some embodiments, the cooling assembly further includes a fan, and an air outlet side of the fan faces the second cooler.

[0027] In some embodiments, the lubricating oil assembly further includes an oil pan, the oil pan is disposed in the diesel engine, and the oil pan is configured to store the lubricating oil.

[0028] In some embodiments, the lubricating oil assembly further includes a lubricating oil pump, which is disposed in the diesel engine, connected to the oil pan and the lubricating oil pipeline, and configured to pump the lubricating oil in the oil pan into the lubricating oil pipeline.

[0029] In a second aspect, the present application provides a ship, comprising a diesel generator set as described in any one of the first aspects.

[0030] Beneficial effect: Compared with the prior art, an embodiment of the present application provides a diesel generator set, comprising a diesel engine, a generator, a lubricating oil assembly and a cooling assembly; in the present application, the lubricating oil assembly comprises a lubricating oil pipeline, the lubricating oil pipeline is connected to a first part to be lubricated in the diesel engine, so as to provide lubricating oil to the first part to be lubricated, and the lubricating oil pipeline is connected to a second part to be lubricated in the generator, so as to provide lubricating oil to the second part to be lubricated; in the present application, the cooling assembly comprises a first cooler and a cooling pipeline, the first cooler is connected to the lubricating oil pipeline, the first cooler cools the lubricating oil flowing through the first cooler by connecting to the refrigerant, and the cooling pipeline connects the diesel engine and the first cooler, so as to transport refrigerant to the diesel engine and the first cooler; the purpose of the diesel engine and the generator sharing a set of lubricating oil assemblies and cooling assemblies is achieved, the pipeline structure is simplified, and the system complexity of the diesel engine set is reduced.

[0031] An embodiment of the present application provides a ship, including a diesel generator set provided by an embodiment of the present application, which can achieve the purpose of the diesel engine and the generator sharing a set of lubricating oil components and cooling components. The piping structure is relatively simplified and the system complexity of the diesel engine group is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A system diagram of a diesel generator set provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of a module of a cooling assembly in a diesel generator set provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the structure of the first cooler in the diesel generator set provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of the second cooler in the diesel generator set provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of the third cooler and the temperature control valve in the diesel generator set provided in the embodiment of the present application;

[0038] Figure 6 A flowchart of the steps of a method for calibrating a cooling component in a diesel generator set provided in an embodiment of the present application;

[0039] Figure numerals: 10, diesel engine; 11, first part to be lubricated; 20, generator; 21, second part to be lubricated; 30, lubricating oil assembly; 31, lubricating oil pipeline; 311, temperature control valve; 3111, first interface; 3112, second interface; 3113, third interface; 32, oil pan; 33, lubricating oil pump; 40, cooling assembly; 41, first cooler; 411, first inlet; 412, first outlet; 413, second inlet; 414, second outlet; 42, cooling pipeline; 43, cooling pump; 44, return cooling pipeline; 45, second cooler; 451, third inlet; 452, third outlet; 46, fan; 47, third cooler; 471, fourth inlet; 472, fourth outlet; 48, fourth cooler; 49, fifth cooler. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0041] See also Figures 1 to 5 An embodiment of the present application provides a diesel generator set, including a diesel engine 10, a generator 20, a lubricating oil assembly 30 and a cooling assembly 40; in the present application, the lubricating oil assembly 30 includes a lubricating oil pipeline 31, the lubricating oil pipeline 31 is connected to a first component to be lubricated 11 in the diesel engine 10, so as to provide lubricating oil to the first component to be lubricated 11, and the lubricating oil pipeline 31 is connected to a second component to be lubricated 21 in the generator 20, so as to provide lubricating oil to the second component to be lubricated 21; in the present application, the cooling assembly 40 includes a first cooler 41, the first cooler 41 is connected to the lubricating oil pipeline 31, the first cooler 41 cools the lubricating oil flowing through the first cooler 41 by connecting a refrigerant, and the cooling pipeline 42 connects the diesel engine 10 and the first cooler 41 to transport refrigerant to the diesel engine 10 and the first cooler 41; the purpose of the diesel engine 10 and the generator 20 sharing a set of lubricating oil assemblies 30 and cooling assemblies 40 is achieved, the pipeline structure is simplified, and the system complexity of the diesel engine set is reduced.

[0042] See also Figures 1 to 3In some embodiments, along the flow direction of the lubricating oil, the first cooler 41 is located between the second part to be lubricated 21 and the first part to be lubricated 11 to cool the lubricating oil delivered to the second part to be lubricated 21, and the lubricating oil is pre-cooled before entering the second part to be lubricated 21, so that the temperature of the lubricating oil meets the lubrication temperature requirement of the second part to be lubricated 21.

[0043] See also Figure 1 In some embodiments, the first cooler 41 and the second component to be lubricated 21 are connected in series in the lubricating oil pipeline 31 . The first cooler 41 cools the lubricating oil to a suitable temperature and then inputs the lubricating oil into the second component to be lubricated 21 to achieve lubrication of the second component to be lubricated 21 .

[0044] See also Figures 1 to 3 In some embodiments, the first cooler 41 is a generator oil cooler, the second lubricated component 21 is a generator bearing, and both the first cooler 41 and the second lubricated component 21 are located in the generator 20. The oil pipeline 31 is introduced into the generator 20, the generator oil cooler and the generator bearing are connected in series in the oil pipeline 31, and the generator bearing is connected to the lubricating oil cooled by the generator oil cooler to lubricate the generator bearing.

[0045] See also Figures 1 to 3 In some embodiments, the cooling assembly 40 also includes a cooling pump 43 and a return cooling pipeline 44; the cooling pump 43 is used to provide refrigerant; the cooling supply pipeline 42 is connected to the cooling pump 43 and the first cooler 41, and the cooling supply pipeline 42 is used to connect the refrigerant provided by the cooling pump 43 to the first cooler 41 so that the first cooler 41 can perform cooling operations; the return cooling pipeline 44 is connected to the first cooler 41 and is connected to the outside of the diesel generator to lead the refrigerant after heat exchange from the first cooler 41 to the outside.

[0046] See also Figure 1 In some embodiments, the cooling pump 43 is a diesel engine belt pump, and the cooling pump 43 is arranged in the diesel engine 10, and there is no need to reserve an additional pump body position outside the diesel engine 10, which helps to rationalize the design of the space.

[0047] See also Figures 1 to 3In some embodiments, the first cooler 41 includes a first inlet 411, a first outlet 412, a second inlet 413 and a second outlet 414; wherein the first inlet 411 and the first outlet 412 are connected to the lubricating oil passage of the first cooler 41 so that the lubricating oil can flow in the first cooler 41; specifically, the first inlet 411 is connected to the lubricating oil pipeline 31, and the first inlet 411 is used to input the lubricating oil to be cooled in the lubricating oil pipeline 31 into the first cooler 41; the first outlet 412 is connected to the second component to be lubricated 21 through the lubricating oil pipeline 31, and the first outlet 412 is used to output the lubricating oil cooled by the first cooler 41 to the second component to be lubricated 21. Among them, the second inlet 413 and the second outlet 414 are connected to the cooling passage of the first cooler 41 so that the refrigerant can circulate in the first cooler 41; specifically, the second inlet 413 is connected to the cooling supply pipeline 42, and the second inlet 413 is used to connect the refrigerant to the first cooler 41; the second outlet 414 is connected to the cooling return pipeline 44, and the second outlet 414 is used to output the refrigerant after heat exchange to the cooling return pipeline 44, so that the refrigerant after heat exchange can be discharged from the first cooler 41 through the cooling return pipeline 44.

[0048] See also Figure 1 , Figure 2 and Figure 4 In some embodiments, the cooling assembly 40 further includes a second cooler 45, which is connected to the generator 20 and is used to cool the generator 20. The second cooler 45 is connected to the cooling pipeline 42 to access the refrigerant flowing in the cooling pipeline 42; the second cooler 45 is connected to the cooling return pipeline 44 to lead the refrigerant after heat exchange to the outside.

[0049] See also Figure 1 , Figure 2 and Figure 4 In some embodiments, the second cooler 45 includes a third inlet 451 and a third outlet 452; wherein the third inlet 451 and the third outlet 452 are connected to the cooling passage of the second cooler 45 so that the refrigerant circulates in the second cooler 45; specifically, the third inlet 451 is connected to the cooling supply pipeline 42, and the third inlet 451 is used to connect the refrigerant to the second cooler 45; the third outlet 452 is connected to the return cooling pipeline 44, and the third outlet 452 is used to output the refrigerant after heat exchange to the return cooling pipeline 44, so as to discharge the refrigerant after heat exchange from the second cooler 45 through the return cooling pipeline 44.

[0050] See also Figures 1 to 4 In some embodiments, the first cooler 41 and the second cooler 45 are connected in parallel. The second inlet 413 and the third inlet 451 are connected in parallel to the cooling pipeline 42 ; the second outlet 414 and the third outlet 452 are connected in parallel to the cooling pipeline 44 .

[0051] See also Figure 1 In some embodiments, the cooling assembly 40 further includes a fan 46 , and an air outlet side of the fan 46 faces the second cooler 45 to perform air cooling on the second cooler 45 , thereby improving the cooling efficiency of the second cooler 45 .

[0052] See also Figure 1 In some embodiments, the lubricating oil assembly 30 further includes an oil pan 32 and a lubricating oil pump 33. The oil pan 32 is provided in the diesel engine 10 and is configured to store lubricating oil; the lubricating oil pump 33 is provided in the diesel engine 10 and is connected to the oil pan 32 and the lubricating oil pipeline 31, and is configured to pump the lubricating oil in the oil pan 32 into the lubricating oil pipeline 31.

[0053] See also Figure 1 In some embodiments, the lubricating oil assembly 30 further includes a third cooler 47 . Along the flow direction of the lubricating oil, the third cooler 47 is located between the lubricating oil pump 33 and the first component to be lubricated 11 , and the third cooler 47 is connected in parallel to the lubricating oil pipeline 31 .

[0054] See also Figure 1 , Figure 2 and Figure 5 In some embodiments, the third cooler 47 includes a fourth inlet 471 and a fourth outlet 472; wherein the fourth inlet 471 and the fourth outlet 472 are in communication with the lubricating oil passage of the third cooler 47, so that the lubricating oil flows in the third cooler 47. Specifically, the fourth inlet 471 is connected to the lubricating oil pipeline 31 to receive the lubricating oil to be cooled; the fourth outlet 472 is connected to the lubricating oil pipeline 31 to input the cooled lubricating oil into the lubricating oil pipeline 31.

[0055] See also Figure 1 , Figure 2 and Figure 5 In some embodiments, the lubricating oil assembly 30 further includes a temperature control valve 311, which includes a first interface 3111, a second interface 3112, and a third interface 3113; the first interface 3111 and the second interface 3112 are connected in series in the lubricating oil pipeline 31, the first interface 3111 is connected to the lubricating oil pump 33 through the lubricating oil pipeline 31, and the second interface 3112 is connected to the first component to be lubricated 11 through the lubricating oil pipeline 31; the third interface 3113 is connected to the fourth outlet 472. By adjusting the connection between the first interface 3111 and the second interface 3112, the lubricating oil pump 33 directly delivers the lubricating oil to the first component to be lubricated 11; by adjusting the connection between the third interface 3113 and the second interface 3112, the lubricating oil cooled by the third cooler 47 is connected to the first component to be lubricated 11.

[0056] See also Figure 1 and Figure 5In some embodiments, the lubricating oil assembly 30 further includes a self-filter, which is connected to the lubricating oil pipeline 31. Along the flow direction of the lubricating oil, the self-filter is located between the temperature control valve 311 and the first component to be lubricated 11. Specifically, the second interface 3112, the self-filter and the first component to be lubricated 11 are connected in sequence to filter the lubricating oil before it enters the first component to be lubricated 11, filter out impurities in the lubricating oil, and prevent the impurities from affecting the normal operation of the device.

[0057] See also Figure 1 In some embodiments, the cooling assembly 40 also includes a fourth cooler 48 and a fifth cooler 49, and the cooling pump 43, the fourth cooler 48 and the fifth cooler 49 are connected in series. The cooling pump 43 passes the cooling medium into the fourth cooler 48 and the fifth cooler 49 in sequence to provide refrigerant for the fourth cooler 48 and the fifth cooler 49; specifically, the fourth cooler 48 is a low-temperature sea water cooler, and the fifth cooler 49 is a high-temperature sea water cooler.

[0058] It can be understood that the diesel generator set of the embodiment of the present application includes a diesel engine 10, a generator 20, a lubricating oil assembly 30 and a cooling assembly 40; in the present application, the lubricating oil assembly 30 includes a lubricating oil pipeline 31, the lubricating oil pipeline 31 is connected to the first part to be lubricated 11 in the diesel engine 10, so as to provide lubricating oil to the first part to be lubricated 11, and the lubricating oil pipeline 31 is connected to the second part to be lubricated 21 in the generator 20, so as to provide lubricating oil to the second part to be lubricated 21; in the present application, the cooling assembly 40 includes a first cooler 41, the first cooler 41 is connected to the lubricating oil pipeline 31, the first cooler 41 cools the lubricating oil flowing through the first cooler 41 by connecting the refrigerant, and the cooling pipeline 42 connects the diesel engine 10 and the first cooler 41 to transport the refrigerant to the diesel engine 10 and the first cooler 41; the purpose of the diesel engine 10 and the generator 20 sharing a set of lubricating oil assemblies 30 and cooling assemblies 40 is achieved, the pipeline structure is simplified, and the system complexity of the diesel engine set is reduced.

[0059] Accordingly, see Figure 6 , an embodiment of the present application also provides a method for calibrating a cooling assembly of a diesel generator set, comprising the following steps:

[0060] Step 100: Obtain the working flow rate of the refrigerant.

[0061] In some embodiments, the heat required to be removed by the diesel engine 10, the heat required to be removed by the first cooler 41, the heat required to be removed by the second cooler 45, the temperature rise of the refrigerant, the density of the refrigerant, and the specific heat capacity of the refrigerant are determined, and the working flow rate of the refrigerant is obtained by calculation based on the following formula:

[0062] V=(Q1+Q2+Q3) / (Δt×ρ×C);

[0063] Where V is the working flow rate of the refrigerant, in m 3 / s; Q1 is the heat that the diesel engine 10 needs to take away, in kW, including the heat that the fourth cooler 48 and the fifth cooler 49 need to take away; Q2 is the heat that the first cooler 41 needs to take away, in kW; Q3 is the heat that the second cooler 45 needs to take away, in kW; Δt is the temperature rise of the refrigerant, in °C; ρ is the density of the refrigerant, in kg / m 3 ; C is the specific heat capacity of the refrigerant, the unit is kJ / (kg.℃).

[0064] Step 200 : Obtain the flow resistance of the cooling component 40 .

[0065] Step 300: In response to the operating flow rate of the refrigerant being less than the flow rate threshold, and the flow resistance of the cooling component 40 being less than the flow resistance threshold, confirming that the cooling component 40 has passed the calibration.

[0066] In some embodiments, the flow rate threshold is the flow rate of the cooling pump 43 .

[0067] In some embodiments, the flow resistance threshold is the pressure head of the cooling pump 43 .

[0068] It can be understood that the calibration method of the embodiment of the present application first confirms the required working flow of the refrigerant and the flow resistance data of the cooling component 40; compares the working flow of the refrigerant with the flow threshold, and compares the flow resistance of the cooling component 40 with the flow resistance threshold. When the working flow of the refrigerant is less than the flow threshold and the flow resistance of the cooling component 40 is less than the flow resistance threshold, it is confirmed that the cooling component 40 has passed the calibration, thereby making the reliability of the integrated lubricating oil cooling system higher.

[0069] Correspondingly, an embodiment of the present application also provides a ship, comprising the diesel engine group provided in an embodiment of the present application.

[0070] When the diesel engine set provided in the embodiment of the present application is applied on a ship:

[0071] In the lubricating oil assembly 30, the lubricating oil pump 33 extracts lubricating oil from the oil pan 32; when the lubricating oil needs to be cooled, the temperature control valve 311 is adjusted so that the first interface 3111 and the second interface 3112 are disconnected, the third interface 3113 and the second interface 3112 are connected, and the lubricating oil enters the third cooler 47 from the fourth inlet 471; the lubricating oil is cooled by the third cooler 47 and flows out from the fourth outlet 472, and enters the self-filter through the third interface 3113 and the second interface 3112; the lubricating oil is filtered in the self-filter and then diverted into the first component to be lubricated 11, and lubricates the first component to be lubricated 11; the lubricating oil is filtered in the self-filter and then diverted into the first cooler 41, and after being cooled by the refrigerant in the first cooler 41, it enters the second component to be lubricated 21, and becomes the second component to be lubricated 21.

[0072] In the cooling assembly 40, the cooling pump 43 extracts seawater as a refrigerant and divides the refrigerant into two paths:

[0073] It is supplied to the fourth cooler 48 and the fifth cooler 49 for low-temperature seawater cooling and high-temperature seawater cooling, and is discharged after the cooling operation is completed.

[0074] The refrigerant is supplied to the first cooler 41 and the second cooler 45 ; the refrigerant cools the lubricating oil in the first cooler 41 ; the refrigerant cools the generator 20 in the second cooler 45 ; the refrigerant is discharged after completing the cooling operation.

[0075] When the second cooler 45 cools the generator 20 , the fan 46 is activated to air-cool the second cooler 45 , thereby improving the cooling efficiency of the second cooler 45 .

[0076] It can be understood that the ship of the embodiment of the present application includes the diesel generator set of the present application, which can achieve the purpose of the diesel engine 10 and the generator 20 sharing a set of lubricating oil components 30 and cooling components 40. The piping structure is relatively simplified and the system complexity of the diesel generator set is relatively low.

[0077] The present application has introduced in detail a diesel generator set and a ship provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A diesel generator set, characterized in that: include: A diesel engine (10), the diesel engine (10) comprising a first component to be lubricated (11); A generator (20), the generator (20) comprising a second component to be lubricated (21); a lubricating oil assembly (30), the lubricating oil assembly (30) comprising a lubricating oil pipeline (31), the lubricating oil pipeline (31) being connected to the first component to be lubricated (11) and the second component to be lubricated (21), respectively, the lubricating oil assembly (30) being configured to provide lubricating oil to the first component to be lubricated (11) and the second component to be lubricated (21) through the lubricating oil pipeline (31); A cooling assembly (40), the cooling assembly (40) comprising: A first cooler (41), the first cooler (41) being connected to the lubricating oil pipeline (31), and the first cooler (41) being configured to cool the lubricating oil through a refrigerant; A cooling pipeline (42), the cooling pipeline (42) is connected to the diesel engine (10) and the first cooler (41), and the cooling pipeline (42) is configured to transport a cooling medium.

2. The diesel generator set according to claim 1, characterized in that: Along the flow direction of the lubricating oil, the first cooler (41) is located between the second component to be lubricated (21) and the first component to be lubricated (11) to cool the lubricating oil delivered to the second component to be lubricated (21).

3. The diesel generator set according to claim 1, characterized in that: The cooling assembly (40) further comprises: a cooling pump (43), the cooling pump (43) being connected to the cooling pipeline (42), and the cooling pump (43) being configured to provide the refrigerant to the cooling pipeline (42); A cooling return pipeline (44), the cooling return pipeline (44) is connected to the first cooler (41), and the cooling return pipeline (44) is configured to transport the refrigerant after heat exchange.

4. The diesel generator set according to claim 3, characterized in that: The first cooler (41) comprises: a first inlet (411), the first inlet (411) being connected to the lubricating oil pipeline (31), and the first inlet (411) being configured to input lubricating oil to be cooled; a first outlet (412), the first outlet (412) being connected to the second component to be lubricated (21), and the first outlet (412) being configured to output cooled lubricating oil; A second inlet (413), the second inlet (413) is connected to the cooling pipeline (42), and the second inlet (413) is configured to input the refrigerant; A second outlet (414), the second outlet (414) is connected to the cooling return pipeline (44), and the second outlet (414) is configured to output the refrigerant after heat exchange.

5. The diesel generator set according to claim 1, characterized in that: The first cooler (41) is a generator lubricating oil cooler, and the first cooler (41) is arranged in the generator (20).

6. The diesel generator set according to claim 3, characterized in that: The cooling pump (43) is a diesel engine belt pump, and the cooling pump (43) is arranged in the diesel engine (10).

7. The diesel generator set according to claim 3, characterized in that: The cooling assembly (40) further includes a second cooler (45), the second cooler (45) being connected to the generator (20), and the second cooler (45) being configured to cool the generator (20).

8. The diesel generator set according to claim 7, characterized in that: The second cooler (45) comprises: A third inlet (451), the third inlet (451) is connected to the cooling pipeline (42), and the third inlet (451) is configured to input the refrigerant; A third outlet (452), the third outlet (452) is connected to the cooling return pipeline (44), and the third outlet (452) is configured to output the refrigerant after heat exchange.

9. The diesel generator set according to claim 7, characterized in that: The cooling assembly (40) further comprises a fan (46), wherein an air outlet side of the fan (46) faces the second cooler (45).

10. The diesel generator set according to claim 1, characterized in that: The lubricating oil assembly (30) further comprises an oil pan (32), wherein the oil pan (32) is disposed on the diesel engine (10), and the oil pan (32) is configured to store the lubricating oil.

11. The diesel generator set according to claim 10, characterized in that: The lubricating oil assembly (30) further comprises a lubricating oil pump (33), which is arranged on the diesel engine (10), connected to the oil pan (32) and the lubricating oil pipeline (31), and configured to pump the lubricating oil in the oil pan (32) into the lubricating oil pipeline (31).

12. A ship, characterized in that: Comprising the diesel generator set described in any one of claims 1-11.

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