Multipurpose auxiliary module of diesel generating set

Abstract

The invention discloses a multipurpose auxiliary module of a diesel generating set. The multipurpose auxiliary module at least comprises but is not limited to a public underframe, a lubricating oil unit, a fuel oil supply unit and a cooling unit, the lubricating oil unit, the fuel oil supply unit and the cooling unit are all arranged on a public bottom frame, and assemblies in the cooling unit can be disassembled and assembled according to actual cooling conditions on site. According to the scheme, all the unit assemblies are arranged on the public bottom frame, the public bottom frame can be loaded into a standard container so that the public bottom frame can be transported more conveniently, meanwhile, the lubricating oil unit, the fuel oil supply unit and the expansion water tank are assembled on the public bottom frame and can be suitable for all V240 and V280 type diesel engines for power generation, and assemblies of the cooling unit can be replaced; therefore, various cooling requirements of different users on the diesel generating set can be met, such as radiator air cooling, cooling tower fresh water cooling, seawater cooling and the like.

Description

Technical Field

[0001] The invention relates to the application field of diesel engines, and in particular to a multi-purpose auxiliary module of a diesel generator set. Background Art

[0002] In the V-type medium-speed diesel generator set, the design of the auxiliary unit of the generator set oil-water system is in a one-machine-one-state situation, which is basically tailor-made and customized for each user, that is, each model corresponds to an auxiliary unit, and each cooling method uses different components and pipelines. As a result, the pipelines and main components are not interchangeable, and there is basically no fire-free assembly process for the pipelines. After-sales maintenance is also very troublesome, and the market response speed is also affected accordingly, which brings inconvenience to the company's diesel engine project sales, design, procurement, manufacturing, after-sales and many other tasks. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-purpose auxiliary module for a diesel generator set to address the above-mentioned deficiencies, thereby solving the problems in the prior art that each engine set needs to be individually designed and customized, cannot be modularly set up, and cannot be quickly improved according to the actual needs of on-site cooling conditions.

[0004] The present invention is achieved through the following scheme:

[0005] A multi-purpose auxiliary module for a diesel generator set includes at least but not limited to a common chassis, a lubricating oil unit, a fuel supply unit and a cooling unit; the lubricating oil unit, the fuel supply unit and the cooling unit are all arranged on the common chassis, and the components in the cooling unit can be replaced and disassembled according to the actual cooling conditions on site.

[0006] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the common chassis includes a panel, an oil baffle, a support seat and an oil holding portion; the oil baffle is vertically arranged around the panel to form a cavity structure, the support seat and the oil holding portion are arranged at the bottom of the panel, and the panel is provided with an oil inlet opening that cooperates with the oil holding portion; the support base is also provided with an oil drain interface that cooperates with the oil holding portion.

[0007] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the support base includes a supporting side beam and a cross beam, the supporting side beams are interconnected to form a rectangular structure, the cross beam is arranged at the center position of the rectangular structure, and the oil drain interface is arranged on the wall surface of the supporting side beam; the supporting side beam and the cross beam have the same height.

[0008] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the oil containing portion is an oil containing tank arranged in a staggered manner; the position of the oil containing tank matches the oil inlet opening.

[0009] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the lubricating oil unit is arranged at the middle and rear end and the left rear end position on the common chassis; the fuel supply unit is arranged at the right rear end position on the common chassis; the expansion water tank is arranged at the middle left position on the common chassis; and the cooling unit is arranged at the middle and front end position on the common chassis.

[0010] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the lubricating oil unit includes a lubricating oil cooler, a lubricating oil filter, a first temperature control valve and a pre-supply pump; the oil inlet of the pre-supply pump is connected to the external oil circuit through a first stop valve, and is connected to the first oil inlet of the diesel engine through a second stop valve; the pre-supply pump is connected to the first oil outlet of the diesel engine through a third stop valve, and the oil outlet hole of the pre-supply pump is also connected to the first oil inlet of the first temperature control valve through a fourth stop valve and a first check valve; the first temperature control valve is connected to the lubricating oil filter through a pipeline, the lubricating oil filter is connected to the second oil inlet of the diesel engine through a pipeline, the second oil outlet of the diesel engine is connected to the lubricating oil cooler through a second check valve, the lubricating oil cooler is connected to the second oil inlet of the first temperature control valve through a pipeline, and a branch pipeline connected to the first oil inlet of the first temperature control valve is also provided at the outlet end of the second check valve.

[0011] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, the fuel supply unit includes a fuel coarse filter, a fuel pump and a safety valve; one end of the fuel coarse filter is connected to the fuel tank through a pipeline, and the other end is connected to two fuel pumps through pipelines; the oil outlet pipelines of the two fuel pumps are connected to the fuel inlet of the diesel engine, and a safety circuit is arranged between the fuel coarse filter and the oil outlet pipelines of the two fuel pumps, and the safety valve is arranged on the safety circuit; a fifth stop valve and a third check valve are respectively arranged on both sides of the two fuel pumps.

[0012] Based on the structure of the multi-purpose auxiliary module of the above-mentioned diesel generator set, when cooling tower fresh water cooling is selected, the cooling unit includes a high-temperature water cooler, a low-temperature water cooler, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the low-temperature water cooler, and the outlet end of the low-temperature water cooler is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature water cooler through a first pipeline, and the water outlet of the high-temperature water cooler is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline connected to the second temperature control valve is arranged on the first pipeline; a connecting pipe is arranged between the low-temperature water cooler and the high-temperature water cooler; the outside fresh water enters from the low-temperature water cooler, enters into the high-temperature water cooler through the connecting pipe, and finally the fresh water is discharged from the high-temperature water cooler; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

[0013] Based on the structure of the above-mentioned multi-purpose auxiliary module of a diesel generator set, when an air radiator is selected for cooling, the cooling unit includes a high-temperature radiator, a low-temperature radiator, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the low-temperature radiator, and the outlet end of the low-temperature radiator is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature radiator through a first pipeline, and the water outlet of the high-temperature radiator is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline is arranged on the first pipeline to connect to the second temperature control valve; the high-temperature radiator, the low-temperature radiator and the second temperature control valve are arranged outside the common chassis; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

[0014] Based on the structure of the multi-purpose auxiliary module of the diesel generator set, when seawater is used for cooling, the cooling unit includes a high-temperature water cooler, a low-temperature water cooler, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the high-temperature water cooler, the high-temperature water cooler is connected to the low-temperature water cooler through a pipeline, and the outlet end of the low-temperature water cooler is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature water cooler through a first pipeline, and the water outlet of the high-temperature water cooler is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline connected to the second temperature control valve is arranged on the first pipeline; the external seawater enters from the inlet end of the low-temperature water cooler alone and flows out from the outlet end of the low-temperature water cooler, and the tube sheet and plate in the low-temperature water cooler are replaced with titanium plates; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. All the unit components provided in this scheme are arranged on a common chassis, which can be loaded into a standard container to make it more convenient to transport. At the same time, the lubricating oil unit, fuel supply unit and expansion water tank assembled on the common chassis can be applied to all V240 and V280 diesel engines for power generation. The components of the cooling unit are replaceable, so as to meet the various cooling needs of different users for diesel generator sets, such as radiator air cooling, cooling tower fresh water cooling, seawater cooling, etc.

[0017] 2. The public chassis of this technical solution is applicable to all V240 and V280 diesel generator auxiliary modules of the company, which is simple, universal and easy to transport.

[0018] 3. The lubricating oil unit of this technical solution can meet the pre-supply and circulation needs of all V240 and V280 diesel generators of the company, and can be simplified and universal.

[0019] 4. The fuel supply unit of this technical solution can meet the fuel needs of all V240 and V280 diesel generators of the company and can be simplified and universal.

[0020] 5. The expansion water tank and bracket of this technical solution can meet the needs of all V240 and V280 diesel engine cooling water systems of the company for expansion water tanks, and can be simplified and universal.

[0021] 6. The cooling unit of this technical solution is based on the cooling tower fresh water cooling method. By adding or removing components and changing the plates and pipes, it can be used for radiator air cooling and seawater cooling. In addition, for a given cooling method, changing the number of plates can make the auxiliary module suitable for models with different numbers of cylinders (corresponding to different heat dissipation).

[0022] 7. The setting of lubricating oil temperature control valve and high-temperature water temperature control valve can expand the use area of ​​the auxiliary module, so that the auxiliary module can meet the cooling needs of the diesel engine in both cold and hot areas.

[0023] 8. The connection between the components of this technical solution adopts a new type of pipe connection, which can fully ensure the 100% interchangeability of the pipelines. The prefabricated pipelines can improve the efficiency of pipeline production and installation, making the installation of auxiliary module components and pipelines more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the common base frame in the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the common base frame in the present invention;

[0027] Figure 4 It is a schematic diagram of the principle of the lubricating oil unit in the present invention;

[0028] Figure 5 It is a schematic diagram of the principle of the fuel supply unit in the present invention;

[0029] Figure 6 It is a schematic diagram of the principle of the cooling unit when fresh water is used for heat dissipation in the present invention;

[0030] Figure 7 It is a schematic diagram of the principle of the cooling unit when an air radiator is used for heat dissipation in the present invention;

[0031] Figure 8 A schematic diagram of the principle of the cooling unit when seawater is used for heat dissipation in the present invention;

[0032] Markings in the figure: 1. Common chassis; 2. Lubricating oil unit; 3. Fuel supply unit; 4. Cooling unit; 11. Panel; 12. Oil baffle; 13. Support seat; 14. Oil storage part; 15. Oil inlet opening; 16. Diesel engine; 17. Fuel tank; 131. Support side beam; 132. Cross beam; 133. Lifting hole; 134. Oil drain interface; 141. First oil collecting tank; 142. Second oil collecting tank; 21. Lubricating oil cooler; 22. Lubricating oil filter; 23. First temperature control valve; 24. Pre-supply pump; 25. Third stop valve; 26. First oil outlet of diesel engine; 27. Second stop valve; 28. First stop valve check valve; 29, fourth stop valve; 210, first check valve; 211, second fuel inlet of diesel engine; 212, second fuel outlet of diesel engine; 213, second check valve; 214, branch pipeline; 215, first fuel inlet of diesel engine; 31, coarse fuel filter; 32, fuel pump; 33, safety valve; 34, fifth stop valve; 35, third check valve; 41, high-temperature water cooler; 42, low-temperature water cooler; 43, second temperature control valve; 44, expansion water tank; 45, first pipeline; 46, second pipeline; 47, side pipeline; 48, connecting pipe; 49, high-temperature radiator; 410, low-temperature radiator. DETAILED DESCRIPTION

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0034] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying 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 predetermined direction, be constructed and operated in a predetermined direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0037] Example

[0038] like Figures 1 to 8 As shown, the present invention provides a technical solution:

[0039] A multi-purpose auxiliary module for a diesel generator set, which at least includes but is not limited to a common chassis 1, a lubricating oil unit 2, a fuel supply unit 3 and a cooling unit 4; the lubricating oil unit 2, the fuel supply unit 3 and the cooling unit 4 are all arranged on the common chassis 1, and the components in the cooling unit 4 can be replaced and disassembled according to the actual cooling conditions on site.

[0040] Based on the above structure, the various unit components provided in this scheme are arranged on a common chassis 1, and the common chassis 1 can be loaded into a standard container to make its transportation more convenient. At the same time, the lubricating oil unit 2, the fuel supply unit 3, and the expansion water tank 44 assembled on the common chassis 1 can be applicable to all V240 and V280 type diesel engines 16 for power generation. The components of the cooling unit 4 are replaceable, so as to meet the various cooling needs of different users for diesel generator sets, such as radiator air cooling, cooling tower fresh water cooling, seawater cooling, etc.

[0041] As an example, the common chassis 1 may include a panel 11, an oil baffle 12, a support seat 13 and an oil holding portion 14; the oil baffle 12 is vertically arranged around the panel 11 to form a cavity structure, the support seat 13 and the oil holding portion 14 are arranged at the bottom of the panel 11, and an oil inlet opening 15 that cooperates with the oil holding portion 14 is arranged on the panel 11; an oil drain interface 134 that cooperates with the oil holding portion 14 is also arranged on the support base.

[0042] Based on the above structure, the panel 11 is used to provide a flat assembly surface for each unit, the support seat 13 stably supports the panel 11 and each unit thereon, and the oil baffle plate 12 is used to block the oil leaked from the panel 11 to ensure the cleanliness of the working environment. At the same time, the leaked oil is discharged into the oil holding part 14 through the oil inlet opening 15 for collection, and the collected oil is discharged through the oil drain interface 134.

[0043] As an example, the support seat 13 may include a supporting side beam 131 and a cross beam 132. The supporting side beams 131 are interconnected to form a rectangular structure. The cross beam 132 is arranged at the center of the rectangular structure. The oil drain interface 134 is arranged on the wall surface of the supporting side beam 131. A lifting hole 133 is also arranged on the supporting side beam 131. The supporting side beam 131 and the cross beam 132 have the same height.

[0044] Based on the above structure, a stable supporting structure for the panel 11 can be formed by setting the supporting side beam 131 and the cross beam 132. Setting the cross beam 132 at the center position can make the entire force more balanced. The oil drain interface 134 is set on the supporting side beam 131 to facilitate the discharge of the oil. Setting the lifting hole 133 can facilitate the lifting of the supporting side beam 131.

[0045] As an example, the oil containing portion 14 may be an oil containing tank that is staggered; the position of the oil containing tank matches the oil inlet opening 15, specifically, the oil containing tank may include a first oil collecting tank 141 and a second oil collecting tank 142; the first oil collecting tank 141 and the second oil collecting tank 142 are staggered, and the oil inlet openings 15 are respectively arranged on the panel 11 corresponding to the positions of the two end portions of the first oil collecting tank 141 and the second oil collecting tank 142.

[0046] Based on the above structure, the oil can be quickly collected through multiple oil inlet openings 15, and the first oil collecting tank 141 and the second oil collecting tank 142 arranged in an interlaced manner can make the interior connected as a whole, which is convenient for subsequent oil discharge operations. The public chassis 1 is generally square with a side length of 2300mm. When the user requires additional components, the width remains unchanged and the length can be appropriately lengthened to facilitate loading into a container for transportation.

[0047] As an example, the lubricating oil unit 2 is arranged at the middle and rear end and left rear end positions on the common chassis 1; the fuel supply unit 3 is arranged at the right rear end position on the common chassis 1; the expansion water tank 44 is arranged at the middle left position on the common chassis 1; and the cooling unit 4 is arranged at the middle and front end position on the common chassis 1.

[0048] Specifically, the lubricating oil unit 2 may include a lubricating oil cooler 21, a lubricating oil filter 22, a first temperature control valve 23 and a pre-supply pump 24; the pre-supply pump 24 is connected to the first oil outlet 26 of the diesel engine through the third stop valve 25, and is connected to the first oil inlet 215 of the diesel engine through the second stop valve 27, and the oil inlet of the pre-supply pump 24 is connected to the external oil circuit through the first stop valve 28; the oil outlet of the pre-supply pump 24 is also connected to the first temperature control valve 2 through the fourth stop valve 29 and the first check valve 210. 3; the first temperature control valve 23 is connected to the lubricating oil filter 22 through a pipeline, the lubricating oil filter 22 is connected to the second oil inlet 211 of the diesel engine through a pipeline, the second oil outlet 212 of the diesel engine is connected to the lubricating oil cooler 21 through a second check valve 213, the lubricating oil cooler 21 is connected to the second oil inlet of the first temperature control valve 23 through a pipeline, and a branch pipeline 214 connected to the first oil inlet of the first temperature control valve 23 is also provided at the outlet end of the second check valve 213.

[0049] Based on the above structure, before the diesel engine 16 is started, the entire system needs to be pre-supplied with oil. At this time, the third stop valve 25 and the fourth stop valve 29 are opened, the first stop valve 28 and the second stop valve 27 are closed, the pre-supply pump 24 is started, and the lubricating oil is extracted from the diesel engine 16, and passes through the third stop valve 25, the pre-supply pump 24, the third stop valve 25, the first temperature control valve 23, the lubricating oil cooler 21 and the lubricating oil filter 22 in sequence, and finally returns to the diesel engine 16 to realize the pre-supply of oil to each component; when the lubricating oil in the diesel engine 16 is insufficient, the first stop valve 28 and the second stop valve 27 are opened, the third stop valve 25 and the fourth stop valve 29 are closed, and the oil is pumped into the diesel engine 16 from the outside through the pre-supply pump 24 to realize the oil replenishment operation; in conjunction with the pre-supply operation After completion, the diesel engine 16 starts normal operation. After the oil passes through the second check valve 213, it chooses to enter the branch pipeline 214 and / or the lubricating oil cooler 21 according to temperature requirements, and finally enters the first oil inlet and the second oil inlet of the first temperature control valve 23, and then supplies oil to the lubricating oil filter 22. After the lubricating oil filter 22 filters the slip, it is finally input into the second oil inlet 211 of the diesel engine to realize the circulation operation. In this scheme, the first temperature control valve 23 can automatically adjust the opening size of the first oil inlet and the second oil inlet on the first temperature control valve 23 according to the temperature of the lubricating oil, thereby adjusting the amount of oil entering the lubricating oil cooler 21, and finally realizing the adjustment of the oil supply temperature to the lubricating oil filter 22, so that it always operates within an appropriate temperature range.

[0050] As an example, the fuel supply unit 3 may include a fuel coarse filter 31, a fuel pump 32 and a safety valve 33; one end of the fuel coarse filter is connected to the fuel tank 17 through a pipeline, and the other end is connected to the fuel pump 32 through a pipeline; the oil outlet pipeline of the fuel pump 32 is connected to the oil inlet of the diesel engine 16, and a safety circuit is arranged between the fuel coarse filter and the oil outlet pipeline of the fuel pump 32, and the safety valve 33 is arranged on the safety circuit; a fifth stop valve 34 and a third check valve 35 are respectively arranged on both sides of the fuel pump 32.

[0051] Based on the above structure, the fuel is filtered through the fuel coarse filter 31 and then delivered to the fuel pump 32. The fuel pump 32 provides power for the fuel and delivers the fuel to the diesel engine 16. The safety circuit is set in the pipeline for the safety of the entire fuel supply circuit.

[0052] As an example, when cooling tower fresh water cooling is selected, the cooling unit 4 may include a high-temperature water cooler 41, a low-temperature water cooler 42, a second temperature control valve 43 and an expansion water tank 44; the cold end inlet of the lubricating oil cooler 21 is connected to the low-temperature water outlet of the diesel engine 16, the cold end outlet of the lubricating oil cooler 21 is connected to the low-temperature water cooler 42, and the outlet end of the low-temperature water cooler 42 is connected to the low-temperature water inlet of the diesel engine 16;

[0053] The high-temperature water outlet of the diesel engine 16 is connected to the water inlet of the high-temperature water cooler 41 through the first pipeline 45, and the water outlet of the high-temperature water cooler 41 is connected to the high-temperature water inlet of the diesel engine 16 through the second pipeline 46; the second temperature control valve 43 is arranged on the second pipeline 46, and the first pipeline 45 is provided with a side pipeline 47 connected to the second temperature control valve 43;

[0054] A connecting pipe 48 is provided between the low-temperature water cooler 42 and the high-temperature water cooler 41 ; fresh water from the outside enters from the low-temperature water cooler 42 , enters into the high-temperature water cooler 41 through the connecting pipe 48 , and finally the fresh water is discharged from the high-temperature water cooler 41 .

[0055] The expansion water tank 44 is connected to the high-temperature water inlet of the diesel engine 16 and the low-temperature water inlet of the diesel engine 16 through pipelines respectively.

[0056] Based on the above structure, when fresh water is used for cooling, the high-temperature hot water generated by the diesel engine 16 is cooled separately by the high-temperature water cooler 41, and the low-temperature hot water is cooled separately by the low-temperature water cooler 42. Both the low-temperature water cooler 42 and the high-temperature water cooler 41 use fresh water from the outside for heat exchange. In this scheme, a second temperature control valve 43 is also provided, which can automatically adjust the amount of liquid entering the high-temperature water cooler 41 according to the temperature of the high-temperature water; the expansion water tank 44 in this scheme replenishes liquid for the high-temperature water circuit and the low-temperature water circuit. In this scheme, the high-temperature water cooler 41 (heat dissipation 918kW, stainless steel plate) and the low-temperature water cooler 42 (heat dissipation 798kW, stainless steel plate) are locked, and the plates can be increased or decreased to meet the heat dissipation of different diesel engines 16, and the size and direction of the pipelines and fittings are determined.

[0057] As an example, when an air radiator is selected for cooling, the cooling unit 4 may include a high-temperature radiator 49, a low-temperature radiator 410, a second temperature control valve 43 and an expansion water tank 44; the cold end inlet of the lubricating oil cooler 21 is connected to the low-temperature water outlet of the diesel engine 16, the cold end outlet of the lubricating oil cooler 21 is connected to the low-temperature radiator 410, and the outlet end of the low-temperature radiator 410 is connected to the low-temperature water inlet of the diesel engine 16;

[0058] The high-temperature water outlet of the diesel engine 16 is connected to the water inlet of the high-temperature radiator 49 through the first pipeline 45, and the water outlet of the high-temperature radiator 49 is connected to the high-temperature water inlet of the diesel engine 16 through the second pipeline 46; the second temperature control valve 43 is arranged on the second pipeline 46, and the first pipeline 45 is provided with a side pipeline 47 connected to the second temperature control valve 43;

[0059] The high temperature radiator 49 , the low temperature radiator 410 and the second temperature control valve 43 are arranged outside the common chassis 1 .

[0060] The expansion water tank 44 is connected to the high-temperature water inlet of the diesel engine 16 and the low-temperature water inlet of the diesel engine 16 through pipelines respectively.

[0061] Based on the above structure, when the radiator is selected for cooling, the high-temperature hot water generated by the diesel engine 16 is cooled separately by the high-temperature radiator 49, and the low-temperature hot water is cooled separately by the low-temperature radiator 410, and both the low-temperature radiator 410 and the high-temperature radiator 49 exchange heat with the external cold air. In this scheme, a second temperature control valve 43 is also provided, which can automatically adjust the amount of liquid entering the high-temperature radiator 49 according to the temperature of the high-temperature water; the expansion water tank 44 in this scheme replenishes liquid for the high-temperature water circuit and the low-temperature water circuit.

[0062] When the user selects the radiator air cooling mode, the high-temperature water cooler 41 and the low-temperature water cooler 42 are not installed, and the corresponding cooling water pipelines are led to the radiator outside the auxiliary module.

[0063] As an example, when seawater is used for cooling, the cooling unit 4 may include a high-temperature water cooler 41, a low-temperature water cooler 42, a second temperature control valve 43 and an expansion water tank 44; the cold end inlet of the lubricating oil cooler 21 is connected to the low-temperature water outlet of the diesel engine 16, the cold end outlet of the lubricating oil cooler 21 is connected to the high-temperature water cooler 41, the high-temperature water cooler 41 is connected to the low-temperature water cooler 42 through a pipeline, and the outlet end of the low-temperature water cooler 42 is connected to the low-temperature water inlet of the diesel engine 16;

[0064] The high-temperature water outlet of the diesel engine 16 is connected to the water inlet of the high-temperature water cooler 41 through the first pipeline 45, and the water outlet of the high-temperature water cooler 41 is connected to the high-temperature water inlet of the diesel engine 16 through the second pipeline 46; the second temperature control valve 43 is arranged on the second pipeline 46, and the first pipeline 45 is provided with a side pipeline 47 connected to the second temperature control valve 43;

[0065] External seawater enters the low-temperature water cooler 42 from the inlet end alone, and flows out from the outlet end of the low-temperature water cooler 42. The tube sheets and plates in the low-temperature water cooler 42 are replaced with titanium plates.

[0066] The expansion water tank 44 is connected to the high-temperature water inlet of the diesel engine 16 and the low-temperature water inlet of the diesel engine 16 through pipelines respectively.

[0067] As an example, the connection between the components of this technical solution adopts a ferrule connection, which can realize rapid assembly of various pipelines, ensure a good sealing environment after assembly, and avoid welding. The setting principle is to use a ferrule type for small-diameter pipes as much as possible (welding is recommended for pipe connections that require frequent movement of auxiliary modules), and use O-rings for large-diameter pipe flanges as much as possible, and use hoses, pipe connectors, etc. in conjunction with them. All pipes are made of stainless steel, and are put into pipe production lines and tire molds.

[0068] In this solution, when seawater cooling is selected, the appearance, interface, installation position, etc. of the high-temperature water cooler 41 and the low-temperature water cooler 42 remain unchanged. Only the tube sheet and plate material are changed. At the same time, the material of some cooler connecting pipes is replaced. The high-temperature water cooler 41 (heat dissipation 918kW, stainless steel plate) and the low-temperature water cooler 42 (heat dissipation 2286kW, titanium plate) are locked. The plates can be increased or decreased to meet the heat dissipation of different diesel engines 16, and the size and direction of the pipelines and fittings are determined.

[0069] In this solution, the total volume of the expansion water tank 44 is 280L (shared by high and low temperature water), the maximum effective water capacity is 240L, and the minimum effective water capacity is 60L. The bracket supports the expansion water tank 44 so that its lowest liquid level is about 1880mm from the center of the water inlet of the water pump.

[0070] In this solution, the fuel supply unit 3 is set up based on the maximum fuel consumption of V240 and V280 diesel engines 16 (about 0.9m3 / h, considering that the circulation volume is not less than 2 / 3, the final pump volume is not less than 1.5m3 / h) and the maximum required pressure (about 6bar). Therefore, the fuel coarse filter 31 (double, single-side 3m3 / h, accuracy 35μm), fuel pump 32 (one for use and one for backup, AC380V / 50Hz, power 1.1kW, pump volume 1.7m3 / h, pressure 6bar), safety valve 33 (3.5bar) and pipeline fittings are locked, and the position of components and the size and direction of pipelines are determined.

[0071] In this solution, the lubricating oil unit 2 includes a lubricating oil pre-supply system and a main circulation system, which are configured based on similar characteristics such as the oil flow rate (about 90m3 / h) and the maximum required pressure (about 8.5bar) of the V240 and V280 diesel engines 16. The pre-supply pump 24 (flow rate of about 12.6m3 / h, pressure of about 6bar), the lubricating oil double filter (single-side flow rate of about 90m3 / h, accuracy of about 20μm), the lubricating oil temperature control valve (temperature control range of 55℃~70℃, variable), and the lubricating oil cooler 21 (heat dissipation of 570kW, stainless steel plate, the plate can be increased or decreased) are locked, and the size and direction of the pipelines and fittings are determined.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose auxiliary module for a diesel generator set, characterized in that: At least it includes but is not limited to a common chassis, a lubricating oil unit, a fuel supply unit and a cooling unit; the lubricating oil unit, the fuel supply unit and the cooling unit are all arranged on the common chassis, and the components in the cooling unit can be replaced and disassembled according to the actual cooling conditions on site.

2. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 1, characterized in that: The common chassis includes a panel, an oil baffle, a support seat and an oil holding portion; the oil baffle is vertically arranged around the panel to form a cavity structure, the support seat and the oil holding portion are arranged at the bottom of the panel, and an oil inlet opening cooperating with the oil holding portion is arranged on the panel; the support base is also provided with an oil drain interface cooperating with the oil holding portion.

3. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 2, characterized in that: The support seat includes a supporting side beam and a cross beam, the supporting side beams are interconnected to form a rectangular structure, the cross beam is arranged at the center of the rectangular structure, and the oil drain interface is arranged on the wall surface of the supporting side beam; the supporting side beam and the cross beam have the same height.

4. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 3, characterized in that: The oil containing parts are staggered oil containing grooves; the positions of the oil containing grooves match the oil inlet openings.

5. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 4, characterized in that: The lubricating oil unit is arranged at the middle rear end and the left rear end on the common chassis; the fuel supply unit is arranged at the right rear end on the common chassis; and the cooling unit is arranged at the middle front end on the common chassis.

6. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 5, characterized in that: The lubricating oil unit includes a lubricating oil cooler, a lubricating oil filter, a first temperature control valve and a pre-supply pump; the oil inlet of the pre-supply pump is connected to the external oil circuit through a first stop valve, and is connected to the first oil inlet of the diesel engine through a second stop valve; the pre-supply pump is connected to the first oil outlet of the diesel engine through a third stop valve, and the oil outlet hole of the pre-supply pump is also connected to the first oil inlet of the first temperature control valve through a fourth stop valve and a first check valve; the first temperature control valve is connected to the lubricating oil filter through a pipeline, the lubricating oil filter is connected to the second oil inlet of the diesel engine through a pipeline, the second oil outlet of the diesel engine is connected to the lubricating oil cooler through a second check valve, the lubricating oil cooler is connected to the second oil inlet of the first temperature control valve through a pipeline, and a branch pipeline connected to the first oil inlet of the first temperature control valve is also provided at the outlet end of the second check valve.

7. A multi-purpose auxiliary module for a diesel generator set as claimed in any one of claims 1 to 5, characterized in that: The fuel supply unit includes a fuel coarse filter, a fuel pump and a safety valve; one end of the fuel coarse filter is connected to the fuel tank through a pipeline, and the other end is connected to the two fuel pumps through pipelines; the oil outlet pipelines of the two fuel pumps are connected to the fuel inlet of the diesel engine, a safety circuit is arranged between the fuel coarse filter and the oil outlet pipelines of the two fuel pumps, and the safety valve is arranged on the safety circuit; a fifth stop valve and a third check valve are respectively arranged on both sides of the two fuel pumps.

8. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 6, characterized in that: When cooling with fresh water from a cooling tower is selected, the cooling unit comprises a high-temperature water cooler, a low-temperature water cooler, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the low-temperature water cooler, and the outlet end of the low-temperature water cooler is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature water cooler through a first pipeline, and the water outlet of the high-temperature water cooler is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline connected to the second temperature control valve is arranged on the first pipeline; a connecting pipe is arranged between the low-temperature water cooler and the high-temperature water cooler; external fresh water enters from the low-temperature water cooler, enters into the high-temperature water cooler through the connecting pipe, and finally the fresh water is discharged from the high-temperature water cooler; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

9. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 6, characterized in that: When an air radiator is used for cooling, the cooling unit includes a high-temperature radiator, a low-temperature radiator, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the low-temperature radiator, and the outlet end of the low-temperature radiator is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature radiator through a first pipeline, and the water outlet of the high-temperature radiator is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline is arranged on the first pipeline to connect to the second temperature control valve; the high-temperature radiator, the low-temperature radiator and the second temperature control valve are arranged outside the common chassis; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

10. A multi-purpose auxiliary module for a diesel generator set as claimed in claim 6, characterized in that: When seawater is used for cooling, the cooling unit includes a high-temperature water cooler, a low-temperature water cooler, a second temperature control valve and an expansion water tank; the cold end inlet of the lubricating oil cooler is connected to the low-temperature water outlet of the diesel engine, the cold end outlet of the lubricating oil cooler is connected to the high-temperature water cooler, the high-temperature water cooler is connected to the low-temperature water cooler through a pipeline, and the outlet end of the low-temperature water cooler is connected to the low-temperature water inlet of the diesel engine; the high-temperature water outlet of the diesel engine is connected to the water inlet of the high-temperature water cooler through a first pipeline, and the water outlet of the high-temperature water cooler is connected to the high-temperature water inlet of the diesel engine through a second pipeline; the second temperature control valve is arranged on the second pipeline, and a side pipeline connected to the second temperature control valve is arranged on the first pipeline; the outside seawater enters from the inlet end of the low-temperature water cooler alone, and flows out from the outlet end of the low-temperature water cooler, and the tube sheet and plate in the low-temperature water cooler are replaced with titanium plates; the expansion water tank is connected to the high-temperature water inlet of the diesel engine and the low-temperature water inlet of the diesel engine through pipelines respectively.

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