Base oil tank and generator set with oil tank

Abstract

The utility model relates to a base oil tank and a generator set with the oil tank, the base oil tank comprises an oil tank body provided with an oil filling port and an oil supply port, a first reinforcing piece and a second reinforcing piece which are in a rectangular groove shape and supporting legs, a bearing area is distributed on the top surface of the oil tank body, and the supporting legs are installed in the bearing area; a first reinforcing piece is fixed to the inner wall of the top face, corresponding to the bearing area, of the oil tank body, the bottom face of the first reinforcing piece is fixed to the inner wall of the top face of the oil tank body, the two end faces of the first reinforcing piece are fixed to the inner surfaces of the side walls of the oil tank body respectively, and one side face of a second reinforcing piece is fixed to the bottom face of the first reinforcing piece. The two end faces of the second reinforcing piece are fixed to the inner surface of the side wall of the oil tank body, and the bottom face width of the second reinforcing piece is smaller than the height of the oil tank body. Through arrangement and cooperation of the reinforcing pieces, the supporting feet and the bearing area, the weight load of the generator set can be dispersed, then the overall strength of the base oil tank is enhanced, and deformation and damage in the using process are prevented.

Description

Technical Field

[0001] This application relates to the field of power generation equipment technology, and more specifically, to a base oil tank and a generator set with an oil tank. Background Technology

[0002] In the modern power generation industry, generator sets are crucial equipment providing critical power support. However, the placement and fuel supply of generator sets have always been key considerations in design and operation. The generator set's base not only needs to house the generator set but also serves as a fuel tank to provide a stable fuel supply. Currently available base designs generally have some shortcomings, primarily in the insufficient strength of the fuel tank. When the weight of the generator set exceeds the base tank's load-bearing capacity, prolonged pressure can cause deformation or damage to the tank, especially common in large or heavy-duty generator sets. Furthermore, during hoisting, all the force is concentrated on the base; if the fuel tank's strength is insufficient, vibrations and impacts during hoisting can damage it, affecting fuel storage and supply. Therefore, a high-strength base tank that overcomes these shortcomings is urgently needed. Utility Model Content

[0003] The purpose of this application is to address one or more of the aforementioned technical problems. To meet any technical objective or solve any technical problem of this application, the following technical solution is adopted: a base fuel tank for mounting a generator set, comprising a fuel tank body with fuel storage function and a first and second reinforcement fixed within the fuel tank body. A fuel filler port and a fuel supply port for supplying fuel to the generator set are provided on the top surface of the fuel tank body. The base fuel tank also includes legs for supporting one or more generator sets. One or more load-bearing areas are distributed on the top surface of the fuel tank body, and the one or more legs are installed within the load-bearing areas. A first reinforcement is fixed on the inner wall of the top surface of the fuel tank body corresponding to each load-bearing area. The first reinforcement is rectangular in the shape of a groove, with its bottom surface fixed to the inner wall of the top surface of the fuel tank body, and its two end faces fixed to the inner surface of the side wall of the fuel tank body. The second reinforcement is rectangular in the shape of a groove, with one side fixed to the bottom surface of the first reinforcement, and its two end faces fixed to the inner surface of the side wall of the fuel tank body. The width of the bottom surface of the second reinforcement is less than the height of the fuel tank body.

[0004] Furthermore, this application also proposes that the support leg includes a column and a support mounting base fixedly installed on the top of the column, the support mounting base having an insertion hole for installing the generator set; the support leg is fixedly installed on the top surface of the fuel tank body through the column.

[0005] Furthermore, this application also proposes that the two ends of the support mounting base are inclined downward to form mounting feet, and a mounting plate is fixed at the top of the column. The support mounting base is fixed to the column by the mounting feet abutting against the mounting plate.

[0006] Furthermore, this application also proposes that a first mounting hole is provided on the mounting foot, and a second mounting hole is provided on the mounting plate. The mounting foot abuts against the mounting plate so that the first mounting hole and the second mounting hole are opposite each other, and the support mounting base is fixedly connected to the mounting plate by bolts inserted into the first mounting hole and the second mounting hole.

[0007] Furthermore, this application also proposes that a third reinforcement member is fixedly provided on the outside of the side wall of the fuel tank body. The third reinforcement member is in the shape of a rectangular groove, with the rectangular groove of the third reinforcement member facing the outside of the fuel tank body. A lifting plate is fixedly connected to the third reinforcement member, and a lifting hole is provided on the lifting plate.

[0008] Furthermore, this application also proposes that the bottom width of the third reinforcement component is equal to the height of the fuel tank body.

[0009] Furthermore, this application also proposes that the bottom surface of the third reinforcement member is provided with multiple reinforcing ribs.

[0010] Furthermore, this application also proposes that a battery area for placing a storage battery is provided on the top surface of the fuel tank body; and a water tank area for placing a water tank is provided within the load-bearing area of ​​the fuel tank body.

[0011] Furthermore, this application also proposes that an oil return port and a vent are provided on the top surface of the oil tank body, and a drain port is provided on the side wall of the oil tank body.

[0012] Furthermore, this application also proposes a generator set with an oil tank, including a generator set and the aforementioned base oil tank, wherein the generator set is mounted on the base oil tank. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the base tank structure of this application.

[0015] Figure 2 This is a structural schematic diagram of the base oil tank of this application from a top view.

[0016] Figure 3 This is a structural schematic diagram of the base oil tank from the right view angle of this application.

[0017] Figure 4 This is a schematic diagram of the support structure of this application.

[0018] The markings in the diagram are as follows: 1. Base oil tank; 10. Oil tank body; 101. Inner top wall; 103. Outer top wall; 102. Inner side wall; 1031. Load-bearing area; 104. Filler port; 105. Oil supply port; 106. Oil return port; 107. Drain port; 108. Side wall; 109. Vent port;

[0019] 21. First reinforcing member; 211. Top surface of the first reinforcing member; 212. Bottom surface of the first reinforcing member; 213. End surface of the first reinforcing member;

[0020] 22. Second reinforcing member; 221. Outer surface of the second reinforcing member; 222. End face of the second reinforcing member;

[0021] 23. Third reinforcement component; 231. Top surface of the third reinforcement component; 232. Bottom surface of the third reinforcement component;

[0022] 25. Lifting plate; 251. Lifting hole; 252. Reinforcing rib; 26. Battery area; 27. Water tank area;

[0023] 31. Support leg; 311. Column; 312. Support mounting base; 3122. Mounting foot; 3121. Insertion hole; 3123. Mounting plate; 3124. Second mounting hole; 3125. First mounting hole. Detailed Implementation

[0024] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application and should not be construed as limiting this application.

[0025] Those skilled in the art will understand that, unless explicitly stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated feature, integer, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any unit and all combinations of one or more associated listed items.

[0026] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0027] The embodiments of this application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the power generation industry related to this application, generator sets require a stable and reliable base during actual operation. This base also serves as a fuel tank and a fuel supply source for the generator set. Traditionally, most base fuel tanks use the tank body directly as the support structure, meaning they rely solely on the thickness of the tank body to bear the weight of the generator set, lacking reinforcement design for load-bearing areas. During long-term operation, the top surface of the base fuel tank is prone to indentation and deformation due to localized stress concentration, especially during hoisting operations where external impacts can easily cause weld cracking. Although existing technologies include internal reinforcement structures for base fuel tanks, these typically employ a single reinforcing rib, failing to form a three-dimensional support system and effectively distributing the combined weight of the generator set and the hoisting load. The base fuel tank provided in this application has a reinforced structure fixed inside the fuel tank body, and a load-bearing area is defined on the top surface of the fuel tank body corresponding to the reinforced structure and the corresponding support feet are set in the load-bearing area. The generator set is installed on the base fuel tank through the support feet, which can effectively distribute the weight load of the generator set, enhance the overall strength of the base fuel tank, and prevent deformation and damage caused by hoisting or long-term use. It has the advantages of improving structural strength, preventing deformation and damage, and ensuring stable fuel supply.

[0029] The specific solutions and advantages of this application will be partially set forth in the description below, and will become apparent from the description or may be learned through practice. Conventional reinforced structures can only provide relatively planar compressive strength and are generally unable to withstand long-term load-bearing pressure and the shear forces and bending moments generated when hoisting generator sets. Studies of the deformation mechanism of the fuel tank body show that top surface collapse originates from the combined effect of vertical pressure and sidewall deformation, requiring the simultaneous establishment of a rigid support surface in the vertical direction and a constraint structure in the horizontal direction. Based on this, this application constructs a support system with gradient reinforcement function, proposing to set double-layered staggered groove-shaped reinforcement members within the base fuel tank body corresponding to the load-bearing area, achieving multi-directional force transmission through a spatial frame structure.

[0030] According to one embodiment of this application, such as Figure 1 and Figure 2 As shown, the base oil tank 1 for mounting a generator set in this application includes an oil tank body 10 with an oil storage function and two reinforcing components fixed inside it, namely a first reinforcing component 21 and a second reinforcing component 22. The top surface of the oil tank body 10 is provided with an oil filling port 104 and an oil supply port 105.

[0031] The top surface of the fuel tank body 10 has one or more load-bearing areas 1031 for supporting the generator set, and one or more support legs 31 for supporting the generator set are installed in the load-bearing areas. A first reinforcing member 21 is fixed to the inner wall of the top surface of the fuel tank body 10 corresponding to each load-bearing area 1031. The first reinforcing member 21 is a rectangular groove shape, having a bottom surface and two side surfaces extending from the bottom surface in a direction perpendicular to the bottom surface. The bottom surface and the two side surfaces form the rectangular groove shape, and the two ends of the rectangular groove form the two end faces of the first reinforcing member 21. The rectangular groove shape described herein includes similar groove shapes, such as U-shaped grooves. The bottom surface of the first reinforcing member 21 is fixed to the inner wall of the top surface of the fuel tank body 10, and the two end faces of the first reinforcing member 21 are respectively fixed to the inner surface of the side walls of the fuel tank body 10.

[0032] The second reinforcement 22 is also a rectangular groove. One side of the second reinforcement 22 is connected to the bottom surface of the first reinforcement 21, and the two end faces of the second reinforcement 22 are respectively connected to the inner surface of the side wall of the fuel tank body 10. The bottom width of the second reinforcement 22 is smaller than the height of the fuel tank body 10.

[0033] For example, such as Figure 1 and Figure 2As shown, the fuel tank body 10 has a bottom surface, a top surface, and side walls. The top surface of the fuel tank body 10 includes an inner top wall 101 (i.e., an inner surface) located inside the fuel tank body 10 and an outer top wall 103 (i.e., an outer surface) located outside the fuel tank body 10. The side walls of the fuel tank body 10 include an inner side wall 102 (i.e., an inner surface) and an outer side wall 108 (i.e., an outer surface) located on the side of the fuel tank body 10. The first reinforcing member 21 has a bottom surface located at the bottom of a rectangular groove, including an outer side surface 211 of the bottom surface, an inner side surface 212 of the bottom surface located within the rectangular groove, two side surfaces forming the rectangular groove, and two end surfaces 213 located at both ends of the rectangular groove. The outer side surface 211 of the bottom surface of the first reinforcing member is fixedly connected to the inner top wall 101 of the fuel tank body 10, and the two end surfaces 213 of the first reinforcing member 21 are respectively fixedly connected to the two corresponding inner side walls 102 within the fuel tank body 10. The second reinforcement member 22 includes a bottom surface located at the bottom of the rectangular groove, two side surfaces forming the rectangular groove, and two end surfaces 222 located at both ends of the rectangular groove. The inner side surface 212 of the bottom surface of the first reinforcement member is fixedly connected to the outer surface 221 of either side surface of the second reinforcement member (i.e., the surface of the side not located inside the rectangular groove), and the two end surfaces 222 of the second reinforcement member are respectively fixedly connected to the two inner side walls of the tank body.

[0034] like Figure 1 and Figure 2 As shown, the load-bearing area 1031 refers to the load concentration area on the top surface of the tank body 10, as determined by stress analysis. The specific distribution location can be determined using finite element simulation. A locally thickened top plate can be installed in this load-bearing area 1031. This load-bearing area 1031 concentrates the load of the support leg 31 to the reinforcement structure, namely the two reinforcement members. The rectangular groove structure of the first reinforcement member 21, as described above, can be a U-shaped cross-section member with a bottom surface and two side uprights forming the sides, specifically formed by bending stamped steel plates. The bottom surface of the first reinforcement member 21 is welded to the inner wall of the top surface of the tank body 10 to form a vertical support surface for the generator set equipment. The two ends of the first reinforcement member 21 are welded to the inner surface of the side wall of the tank body 10 to provide lateral constraint on the tank body 10. The groove opening direction of the second reinforcement 22 is perpendicular to the groove opening direction of the first reinforcement 21, so that one side of the second reinforcement 22 is connected to the inner wall of the top surface of the fuel tank body 10. Specifically, one side plate of the second reinforcement 22 can be welded to the bottom surface of the first reinforcement 21 by fillet welding to form a cross-support structure. The bottom width of the second reinforcement 22 is controlled to be less than the height of the fuel tank body 10, which can be achieved by adjusting the groove depth, so as to ensure structural rigidity and avoid material waste.

[0035] As another embodiment of this application, such as Figure 1 , Figure 2and Figure 4 As shown, after the support leg 31 is installed in the load-bearing area 1031, the load of the support leg 31 is transferred to the bottom surface of the first reinforcement member 21 through the top surface of the tank body 10. The first reinforcement member 21 converts the vertical pressure into tensile stress on the sidewall; that is, the connection between the end of the first reinforcement member 21 and the sidewall of the tank body 10 prevents lateral deformation of the top surface of the tank body 10. The second reinforcement member 22 connects to the bottom surface of the first reinforcement member 21 through its side surface, thereby transferring part of the load to the bottom surface of the first reinforcement member 21. At the same time, the connection between the end face of the second reinforcement member 22 and the sidewall of the tank body 10 forms longitudinal support, dispersing the bending stress on the top surface of the tank body 10. The spatially intersecting arrangement of the two reinforcement members allows the load to be transferred to the sidewall of the tank body 10 along multiple paths, forming a three-dimensional force transmission network. The difference in the width of the bottom surface of the second reinforcement member 22 allows the second reinforcement member 22 to mainly bear shear stress, avoiding functional overlap with the first reinforcement member 21 and achieving optimized distribution of material mechanical properties. Traditional solutions rely solely on single-layer reinforcing ribs or locally thickened top plates, failing to create a three-dimensional load transfer system. This solution achieves higher bending stiffness with the same material usage through spatial cross-connection of double-grooved reinforcing members. The first reinforcing member 21 directly supports the position of the support leg 31, while the second reinforcing member 22 forms diagonal support through side connections, effectively suppressing top surface collapse. The connection between the ends of the reinforcing members and the side walls of the tank body 10 changes the traditional structure's reliance solely on top surface bearing, converting part of the load into tensile stress on the side walls of the tank body 10, fully utilizing the overall strength of the tank structure. This application effectively improves the load-bearing stability of the base tank 1. The load of the support leg 31 is concentrated and transferred to the reinforced structure through the load-bearing area 1031, avoiding large-area compression deformation of the top surface. The synergistic effect of the two reinforcing members (the first and second reinforcing members) transforms the vertical load into a composite bearing mode of side wall tensile stress and shear stress, significantly improving the structural bending performance. The spatially cross-arranged reinforcing frame forms multi-point constraints during hoisting operations, preventing tank torsion caused by side wall instability. The differentiated design of the bottom width of the dual-reinforcement components optimizes material distribution while ensuring structural strength, avoiding the increase in weight caused by excessive reinforcement.

[0036] As another embodiment of this application, such as Figure 1 , 2 As shown in Figure 4, the support leg 31 includes a column 311 and a support mounting base 312 fixedly installed on the top of the column 311. The support mounting base 312 has an insertion hole 3121 for installing the generator set. The support leg is fixedly installed on the top surface of the fuel tank body 10 through the column 311.

[0037] The column 311 is a vertically extending support member, which can be made of hollow metal tubing or solid steel column, used to transfer the load of the support mounting base 312 to the top surface of the fuel tank body 10. The support mounting base 312 is a connecting component located at the top of the column 311, which can be a casting or welded structure with a horizontal extension plate, and forms a plug-in fit with the bottom boss of the generator set through an insertion hole 3121. The insertion hole 3121 is a through hole penetrating the support mounting base 312, which can be circular or rectangular, etc. The inner wall of the insertion hole 3121 can be chamfered to accommodate the generator set's mounting shaft. The insertion hole 3121 and the locating pin of the generator set base are fitted with a clearance fit, for example, the clearance on one side is controlled within the range of 0.5mm to 1mm, forming a displacement-free constraint after the bolts are tightened.

[0038] A mounting plate 3123 can be installed at the top of the column 311. The mounting plate 3123 can be a flat bearing component welded or cast at the top of the column 311, providing a rigid support base for the support mounting seat 312 and serving as a base for fixing the generator set. Specifically, it can be a steel plate of a certain thickness with rust-proof surface and bolt holes welded to the end of the column 311, and can form a detachable connection with the support mounting seat 312.

[0039] The column 311 is fixed to a preset position on the top surface of the fuel tank body 10 (e.g., the load-bearing area 1031 mentioned above) by bottom welding or bolt connection, and its vertical height can be adjusted according to the installation requirements of the generator set. The support mounting base 312 has mounting feet 3122 at both ends, or integrally formed thereon. The mounting feet 3122 abut against the mounting plate 3123, and the contact surfaces of the two are machined to be flat to ensure uniform force distribution. The mounting plate 3123 has second mounting holes 3124 at both ends. The second mounting holes 3124 adopt an oblong design, allowing for fine-tuning of the position during installation, such as reserving adjustment margin along the axial direction. The support mounting base 312 and the mounting plate 3123 can be connected by high-strength bolts. In the prior art, a similar design uses an integral cast structure for the support feet, with a fixed height and an adjustable mounting surface. This solution, through the separate design of the column 311 and the support mounting base 312, allows for flexible replacement of the column 311 according to the installation height requirements of different generator set models. In existing technologies, the mounting holes of the support legs 31 are mostly simple through holes. However, the precision fit between the insertion hole 3121 and the mounting shaft in this application can eliminate horizontal displacement and prevent vibration-induced loosening during equipment operation. Traditionally, the support legs are directly welded to the top surface of the fuel tank body 10. This solution, through the bracket 31 with a column 311 structure featuring a mounting plate 3123, allows for support leg replacement and maintenance without damaging the fuel tank body 10. Furthermore, the vertical support structure of the support legs effectively disperses the concentrated load generated by the generator set, preventing localized denting deformation on the top surface of the fuel tank body 10. The detachable connection design between the support mounting base 312 and the column 311 facilitates on-site installation and adjustment, ensuring that the parallelism error between the generator set base plane and the top surface of the fuel tank is controlled within 2mm. The fit between the insertion hole 3121 and the mounting shaft forms a three-point positioning constraint after tightening, reducing the vibration displacement during equipment operation to below 0.1mm.

[0040] As another embodiment of this application, such as Figure 1 , Figure 4 As shown, the two ends of the support mounting base 312 are inclined downward to form mounting feet 3122, and the top of the column 311 is fixed with a mounting plate 3123. The support mounting base 312 is fixed to the column 311 by the mounting feet 3122 abutting against the mounting plate 3123.

[0041] Mounting feet 3122 refer to the downward-extending inclined structures at both ends of the support mounting base 312. Specifically, they can be triangular or trapezoidal plate structures, with the inclination angle designed as needed, for example, from 15 to 60 degrees. The inclined structure increases the contact area with the mounting plate 3123, forming multi-directional support. The mounting plate 3123 provides a fixing plane for the mounting feet 3122. The mounting feet 3122 abut against the mounting plate 3123, and the contact surfaces are machined to be flat to ensure uniform force distribution. For example, the support mounting base 312 and the mounting plate 3123 can be fixed together by inserting high-strength bolts. Here, bolt insertion fixing can be achieved by threaded fasteners passing through corresponding holes on the mounting feet 3122 and the mounting plate 3123, specifically using high-strength alloy bolts combined with anti-loosening washers.

[0042] Optionally, a first mounting hole 3125 is provided on the mounting foot 3122, and a second mounting hole 3124 is provided on the mounting plate 3123. The mounting foot 3122 abuts against the mounting plate 3123 so that the first mounting hole 3125 and the second mounting hole 3124 are opposite each other, and the support mounting base 312 and the mounting plate 3123 are fixedly connected by bolts inserted into the first mounting hole 3125 and the second mounting hole 3124.

[0043] The first mounting hole 3125 can be a through hole provided on the mounting foot 3122, which can be formed by drilling, for alignment with the second mounting hole 3124 and connection by bolts. The second mounting hole 3124 adopts an oblong design, which allows for fine-tuning of the position during installation, such as leaving an adjustment margin along the axial direction.

[0044] The aforementioned hole design ensures the axial positioning accuracy between the mounting foot 3122 and the mounting plate 3123. The second mounting hole 3124 is a through hole on the mounting plate 3123, specifically formed by drilling with the same diameter as the first mounting hole 3125, creating a through channel. This structure allows bolts to pass through both holes simultaneously for bidirectional fixing.

[0045] In this connection, a threaded fastener can be used to pass through both the first mounting hole 3125 and the second mounting hole 3124. Axial preload can be achieved by tightening a nut. This connection method generates anti-rotation constraint through threaded engagement.

[0046] This application eliminates the risk of displacement caused by vibration through a multi-point mechanical locking method. The inclined contact surfaces of the mounting foot 3122 and the mounting plate 3123 form a wedge-shaped fit structure. When the vibration energy generated by the generator set is transmitted to the support mounting base 312 during operation, the inclined contact surface decomposes the vertical vibration into shear force parallel to the contact surface and normal pressure perpendicular to the contact surface. The rigid support platform formed by welding the mounting plate 3123 to the top of the column 311 effectively suppresses the deformation caused by the normal pressure, while the shear force is converted into a clamping force on the mounting plate 3123 through the inclined contact surface, enhancing the stability of the connection structure. In addition, multiple bolts are used to connect the mounting foot 3122 and the mounting plate 3123 (for example, not limited to both ends, but at multiple positions around them), forming distributed fixing points to avoid fatigue fracture caused by stress concentration at a single connection point. Compared with existing generator set supports that directly fix the support base to the column 311 by welding, the vibration load is concentrated at the weld joint, which is prone to cracking. In existing technologies, the connection method where the flat mounting base contacts the plane of the column 311 only allows the contact surface to transmit loads in the vertical direction, making it prone to bolt loosening due to horizontal vibration. This solution utilizes the three-dimensional constraint structure formed by the inclined mounting feet 3122 and the mounting plate 3123 to convert both vertical loads and horizontal vibration energy into a clamping effect on the connection structure, achieving self-stabilization under dynamic operating conditions. This application effectively solves the problem of loosening caused by vibration at the connection between the support mounting base 312 and the column 311. The combined design of the inclined mounting feet 3122 and multi-point bolt fixing gives the connection structure the ability to resist multi-directional vibration, and the rigid support platform provided by the mounting plate 3123 avoids the impact of local deformation on connection stability, ensuring the installation reliability of the generator set under continuous operating conditions.

[0047] Furthermore, when the mounting foot 3122 and the mounting plate 3123 are fully engaged on the contact surface, the axes of the first mounting hole 3125 and the second mounting hole 3124 coincide to form a through channel. After the bolt passes through this channel, its threaded portion engages with the nut to generate axial tension, thus forming a rigid connection between the mounting foot 3122 and the mounting plate 3123. The contact surface between the mounting foot 3122 and the mounting plate 3123 generates friction under the action of the bolt preload, which can counteract the displacement tendency caused by lateral loads. The thread engagement of the bolt further restricts the relative rotation between the support mounting base 312 and the column 311, thereby eliminating the risk of loosening caused by mechanical vibration. Traditional support foot installations often use single welding or unidirectional bolt connections, which cannot simultaneously meet the dual requirements of resisting axial displacement and rotational displacement. This solution forms a multi-directional constraint mechanism through the alignment design of the mounting holes and double-sided bolt fixing. The prior art does not disclose the contact structure between the mounting foot 3122 and the mounting plate 3123, which fails to disperse local stress through the contact surface, easily leading to plastic deformation around the mounting hole. This application achieves a reliable connection between the support mounting base 312 and the column 311, eliminating the risk of loosening caused by vibration or impact loads. The bidirectional fixing effect of the bolts can simultaneously resist axial and rotational displacement, and the close contact state of the contact surface effectively disperses concentrated stress, prevents structural deformation around the mounting hole, and ensures the stability of the support foot under long-term load-bearing conditions.

[0048] As another typical embodiment of this application, in the base oil tank of this application, such as Figure 1 , 2 As shown in Figure 3, a third reinforcement member 23 is fixedly installed on the outer side wall 108 of the fuel tank body 10. The third reinforcement member 23 is in the shape of a rectangular groove. The rectangular groove of the third reinforcement member 23 faces the outer side of the fuel tank body 10. A lifting plate 25 is fixedly connected to the third reinforcement member 23, and a lifting hole 251 is provided on the lifting plate 25.

[0049] The third reinforcement component 23 has a rectangular groove bottom surface, which includes an outer side surface 231 and an inner side surface 232. The outer side surface 231 of the third reinforcement component abuts against the outer wall 108 of the fuel tank body 10 (i.e., the outer surface of the side wall of the fuel tank body 10). The inner side surface 232 of the third reinforcement component is fixedly connected to a lifting plate 25, which has a lifting hole 251. The third reinforcement component 23 refers to a reinforcing structure fixed to the outer side wall 108 of the fuel tank body. It can be implemented by welding or bolting, thereby increasing the external support area of ​​the side wall 108 to improve bending strength. The rectangular groove shape refers to a U-shaped groove structure, which can be formed by stamping or bending. The outward-facing opening of the groove forms a transverse bending section to resist lifting loads. The lifting plate 25 is a load-bearing component rigidly connected to the third reinforcement member 23. It can be made from a cut steel plate. The concentrated load generated by the lifting equipment is distributed and transferred to the third reinforcement member 23 through the lifting hole 251. In other words, the groove opening of the third reinforcement member 23 faces the outside of the fuel tank body 10, and its two end faces are tightly fitted and fixed to the outer surface of the side wall 108 of the fuel tank body, forming a rigid support structure integrated with the side wall 108 of the fuel tank body 10. When the lifting equipment applies tension through the lifting hole 251, the force is transmitted through the lifting plate 25 to the bottom surface 232 of the groove in the third reinforcement member 23, and then from the groove to the side wall 108 of the fuel tank body 10, distributing the load to a larger contact area of ​​the side wall 108. This design transforms the lifting stress originally concentrated locally on the side wall of the fuel tank body 10 into a uniformly distributed load along the length of the third reinforcement member 23, preventing plastic deformation or cracking of the side wall 108 of the fuel tank body 10 due to stress concentration. Traditionally, when hoisting the base fuel tank 1, the lifting equipment is directly applied to the weak areas of the tank's side wall. Under the lifting tension, the side wall of the tank body 10 is prone to localized dents or weld tears. This solution, however, uses an external third reinforcement 23 and the lifting plate 25 to form a load-bearing frame independent of the tank body 10. This transfers the lifting load to the bottom surface 232 of the groove in the reinforced structure and the side wall 108, effectively isolating the tank body 10 from direct external impact loads. This application solves the problem of structural damage to the side wall 108 of the tank body due to insufficient strength during hoisting, ensuring that external forces are distributed and transmitted through the reinforced structure during hoisting, avoiding the tank body 10 directly bearing concentrated loads, thereby ensuring the safety of the fuel storage function and the long-term service life of the base fuel tank 1.

[0050] Optionally, the width of the outer side surface 231 of the bottom of the third reinforcement 23 is equal to the height of the fuel tank body 10. The third reinforcement 23 can be connected by welding or bolting to completely cover the longitudinal height of the side wall 108 of the fuel tank body 10. This dimensional matching relationship makes the lateral support capacity of the third reinforcement 23 complementary to the vertical load-bearing structure of the fuel tank body 10. When the lifting plate 25 bears external loads, the structure in which the width of the outer side surface 231 of the bottom of the third reinforcement 23 is equal to the height of the fuel tank body 10 maximizes the contact area between the reinforcement and the side wall 108. The lateral stress generated by the lifting load is evenly transmitted to the entire height direction of the side wall 108 of the fuel tank body through the bottom surface of the reinforcement, avoiding stress concentration in local areas of the side wall 108. This stress distribution method effectively prevents tearing or deformation of the side wall material due to the narrow bottom surface of the reinforcement, while the groove structure of the reinforcement forms a three-dimensional support frame, forming a box-type load-bearing system with the fuel tank body 10. This embodiment, by setting the bottom width and height to be equal, creates a load transfer path with surface contact between the reinforcement and the side wall 108 of the tank body, significantly reducing the peak stress per unit area. This allows the lifting load to be evenly distributed across the entire height range of the side wall 108 of the tank body during hoisting, preventing plastic deformation or cracking in localized areas due to stress concentration, and ensuring the overall structural stability of the base tank 1 when subjected to dynamic hoisting impacts.

[0051] Optionally, multiple reinforcing ribs 252 can be provided on the bottom surface of the third reinforcing member 23 to transfer the load on the lifting plate 25 to the side wall 108 of the tank body. The bottom surface of the third reinforcing member 23 refers to the planar area where the rectangular groove-shaped reinforcing component connects to the outer side wall 108 of the tank body 10. The third reinforcing member 23 can be formed by stamping steel plate. The reinforcing ribs 252 refer to one or more strip-shaped structures protruding from the inner side 232 of the bottom surface. They can be formed by welding or integral stamping, and their arrangement direction can be longitudinal, transverse, or grid-like to increase the bending stiffness of the bottom surface. When the lifting plate 25 is subjected to the impact load generated by the lifting of the generator set, the bottom surface of the third reinforcing member 23 is subjected to tensile and compressive stresses perpendicular to the plane. The reinforcing ribs 252 disperse the local concentrated stress to the adjacent area through their rib structure, forming a three-dimensional support network. The stress is transferred to the side wall 108 of the tank body along the extension direction of the reinforcing ribs 252, preventing plastic deformation or cracking of the bottom surface. For example, when longitudinally arranged stiffeners 252 are used, the load is transmitted along the height of the tank; when arranged laterally, the load is transmitted circumferentially along the side wall 108 of the tank. At the connection between the lifting plate 25 and the third reinforcement 23, the stiffeners 252 further restrict the displacement deformation of the connection area, ensuring structural stability during lifting. This application, by setting stiffeners 252 on the bottom surface, transforms the stress distribution from single-point concentration to linear diffusion, effectively reducing the risk of structural instability. The prior art does not disclose the technical means of setting stiffeners 252 on the bottom surface of the third reinforcement 23, nor does it achieve optimization of the load transmission path. This application can effectively avoid deformation or cracking of the bottom surface of the third reinforcement 23 due to stress concentration during lifting, improve the connection reliability between the lifting plate 25 and the tank body 10, and ensure the safety of generator set lifting operations. The arrangement of stiffeners 252 between the mounting plate 3123 and the support mounting base 312 increases the bending strength of the connection to 1.5 times that of the traditional structure, and the overall structure of the support leg does not undergo plastic deformation when subjected to 150% of the rated load.

[0052] In further embodiments of this application, such as Figure 1 and Figure 2As shown, a battery area 26 for placing the battery is provided on the top surface of the fuel tank body 10; a water tank area for placing the water tank is also provided within the load-bearing area 1031 of the fuel tank body 10. The battery area 26 refers to the planar area on the top surface of the fuel tank designated for fixing the battery. Specifically, this can be achieved by stamping a groove structure on the top surface or welding a positioning bracket. This area is not located within the load-bearing area 1031 to avoid affecting the installation stability of the generator set. The water tank area refers to the planar area within the load-bearing area 1031 designated for supporting the water tank. Specifically, this can be achieved by welding a support frame to the load-bearing area 1031 or setting a limiting boss. The load is distributed in this area using the reinforcements within the load-bearing area 1031. The battery area 26 is planned in the non-load-bearing area on the top surface. By utilizing the space on the top surface of the fuel tank body 10 not occupied by the support legs, the installation of the battery will not interfere with the support structure of the generator set. The water tank area is integrated within the load-bearing area 1031. Utilizing the double-layer support structure of the first reinforcement member 21 and the second reinforcement member 22 at the bottom of this area, the weight of the water tank is transferred to the sidewall of the fuel tank through the sidewalls and end faces of the reinforcement members, preventing overload on the top surface. The positioning structure of the battery area 26 and the support frame of the water tank area 27 are mechanically connected to the reinforcement members on the top surface of the fuel tank body 10, ensuring compatibility between the installation stability of the additional equipment and the overall load-bearing capacity of the fuel tank structure. This application achieves integrated installation of generator set auxiliary equipment on the top surface of the fuel tank, avoiding stress concentration problems caused by adding equipment, while maintaining the load-bearing stability of the fuel tank through the synergistic effect of area division and reinforcement structure.

[0053] In addition, such as Figure 1 , Figure 2As shown, the fuel tank body 10 has a return port 106 and a vent 109 on its top surface, and a drain port 107 on its side wall. The return port 106 is an opening on the top surface of the fuel tank, which can be implemented using a threaded pipe fitting. Its function is to guide excess fuel generated during generator operation back into the fuel tank via a pipe. The vent 109 is a through-hole on the top surface of the fuel tank, which can be implemented using a tubular interface fitted with a one-way vent valve. Its function is to maintain a dynamic balance of air pressure between the inside of the fuel tank and the outside environment. The drain port 107 is a discharge channel located at the lower part of the side wall of the fuel tank, which can be implemented using a shut-off valve with a sealing cap. Its function is to discharge impurities and moisture deposited at the bottom of the fuel tank through a low-level opening. The return port 106 on the top surface of the fuel tank allows unburned fuel generated during generator operation to return to the fuel tank via a return pipe, avoiding fuel waste and environmental pollution. The vent 109 eliminates negative or positive pressure generated during fuel delivery by connecting the inside and outside of the fuel tank, preventing air lock caused by pressure imbalance in the fuel supply line. The drain port 107 on the side wall uses gravity to allow solid particles and water in the fuel to settle naturally to the bottom of the fuel tank. The lateral opening allows for directional discharge of contaminants, avoiding the impact of a top opening on the structural strength of the fuel tank.

[0054] According to another embodiment of this application, this application further provides a generator set with an oil tank, including a generator set and a base oil tank 1 as described above, wherein the generator set is mounted on the base oil tank 1. Figures 1 to 4As shown, the base fuel tank 1 includes a fuel tank body 10 with fuel storage function and a first reinforcing member 21 and a second reinforcing member 22 fixed inside the fuel tank body 10. A fuel filler port 104 and a fuel supply port 105 for supplying fuel to the generator set are provided on the top surface of the fuel tank body 10. The base fuel tank 1 also includes one or more support legs 31 for supporting the generator set. One or more load-bearing areas 1031 are distributed on the top surface of the fuel tank body 10, and one or more support legs 31 are installed within each load-bearing area 1031. A first reinforcing member 21 is fixed to the inner wall of the top surface of the fuel tank body 10 corresponding to region 1031. The first reinforcing member 21 is rectangular groove-shaped, and its two end faces are respectively fixed to the inner surface of the side wall of the fuel tank body 10. A second reinforcing member 22 is also rectangular groove-shaped. One side of the second reinforcing member 22 is fixed to the bottom surface of the first reinforcing member 21, and its two end faces are respectively fixed to the inner surface of the side wall of the fuel tank body 10. The width of the bottom surface of the second reinforcing member 22 is less than the height of the fuel tank body 10. The first reinforcing member 21 has a rectangular groove structure, which can be formed by stamping or welding steel plate. Its bottom surface is in contact with and fixed to the inner wall of the top surface of the fuel tank body 10, and its two ends extend to the inner surface of the side wall and connect to it, so as to distribute the vertical load of the load-bearing region 1031. The second reinforcement member 22 has a rectangular groove structure and is cross-connected with the first reinforcement member 21. It can be made of the same material as the first reinforcement member 21, with one side connected to the bottom surface of the first reinforcement member 21 and both ends extending to the inner surface of the sidewalls. This cross-support system enhances the overall rigidity of the fuel tank body 10. The support leg 31 is a support structure fixed to the load-bearing area 1031. Specifically, it can be a combination of a column 311 and a mounting base. The mounting base has insertion holes 3121 for fixing the generator set, transferring the load to the reinforcement structure through a concentrated stress point. When the generator set is installed on the support leg 31, the support leg 31 transfers the load to the load-bearing area 1031. The rectangular groove structure of the first reinforcement member 21, through its fixed connection between the bottom and top inner walls, distributes the load to the top surface and both sidewalls of the fuel tank body 10, avoiding localized stress concentration on the top surface. The side of the second reinforcement member 22 connects to the bottom surface of the first reinforcement member 21, forming a longitudinal and transverse cross support, further transferring the load to the side wall of the fuel tank, while limiting the deformation of the fuel tank body 10 under stress. The fuel inlet 105 is directly connected to the generator set fuel system, reducing the layout of external pipelines. The fuel inlet 104 and the fuel return inlet 106 cooperate to achieve fuel circulation. The support leg 31 is connected to the mounting plate 3123 and the mounting leg 3122 by bolts, ensuring the stable installation of the generator set. This solution forms a multi-directional support network inside the fuel tank body 10 through the cross connection of the first reinforcement member 21 and the second reinforcement member 22, distributing the load to the side wall of the fuel tank. At the same time, the structural design of the support leg 31 and the load-bearing area 1031 accurately transfers the generator set load to the reinforced parts, avoiding excessive local stress.In existing technologies, the hoisting structure is usually separate from the fuel tank body 10. In this solution, the integrated design of the third reinforcement 23 and the hoisting plate 25 enhances the impact resistance during hoisting. After the weight of the generator set is transferred to the load-bearing area 1031 through the support legs 31, it is distributed to the side wall of the fuel tank body 10 by the first reinforcement 21 and the second reinforcement 22 to avoid deformation of the top surface under pressure. The cross-reinforcement structure suppresses the vibration deformation of the fuel tank body 10 during hoisting, ensuring the stability of the fuel storage space. The fuel inlet 105 is directly connected to the generator set to reduce the risk of fuel leakage, and the installation structure of the support legs 31 simplifies the equipment assembly process.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A base tank for mounting a generator set thereon, comprising a tank body with oil storage function and a first reinforcement and a second reinforcement fixed in the tank body, wherein an oil filling port and an oil supply port for supplying fuel to the generator set are provided on the top surface of the tank body. Its features are, The base tank also includes one or more support legs for supporting the generator set. One or more load-bearing areas are distributed on the top surface of the tank body. The one or more support legs are installed in the load-bearing areas. A first reinforcing member is fixed on the inner wall of the top surface of the tank body corresponding to each load-bearing area. The first reinforcing member is in the shape of a rectangular groove. The bottom surface of the first reinforcing member is fixed on the inner wall of the top surface of the tank body. The two end faces of the first reinforcing member are respectively fixed on the inner surface of the side wall of the tank body. The second reinforcement is in the shape of a rectangular groove. One side of the second reinforcement is fixed to the bottom surface of the first reinforcement. The two end faces of the second reinforcement are respectively fixed to the inner surface of the side wall of the fuel tank body. The bottom width of the second reinforcement is smaller than the height of the fuel tank body.

2. The base oil tank as described in claim 1, characterized in that, The support leg includes a column and a support mounting base fixedly installed on the top of the column. The support mounting base has an insertion hole for installing the generator set. The support leg is fixedly installed on the top surface of the fuel tank body through the column.

3. The base oil tank as described in claim 2, characterized in that, The two ends of the support mounting base are inclined downward to form mounting feet, and the top of the column is fixed with a mounting plate. The support mounting base is fixed to the column by the mounting feet abutting against the mounting plate.

4. The base oil tank as described in claim 3, characterized in that, The mounting foot has a first mounting hole, and the mounting plate has a second mounting hole. The mounting foot abuts against the mounting plate so that the first mounting hole and the second mounting hole are opposite each other. The support mounting base is fixedly connected to the mounting plate by bolts inserted into the first mounting hole and the second mounting hole.

5. The base oil tank as described in claim 1, characterized in that, A third reinforcing member is fixedly provided on the outside of the side wall of the fuel tank body. The third reinforcing member is in the shape of a rectangular groove, with the rectangular groove facing the outside of the fuel tank body. A lifting plate is fixedly connected to the third reinforcing member, and a lifting hole is provided on the lifting plate.

6. The base oil tank as described in claim 5, characterized in that, The bottom width of the third reinforcement component is equal to the height of the fuel tank body.

7. The base oil tank as described in claim 5, characterized in that, The bottom surface of the third reinforcement member is provided with multiple reinforcing ribs.

8. The base oil tank as described in any one of claims 1 to 7, characterized in that, The top surface of the fuel tank body is also provided with a battery area for placing the storage battery; the load-bearing area of ​​the fuel tank body is also provided with a water tank area for placing the water tank.

9. The base oil tank as described in claim 1, characterized in that, An oil return port and a vent are provided on the top surface of the oil tank body, and a drain port is provided on the side wall of the oil tank body.

10. A generator set with an oil tank, comprising a generator set and a base oil tank according to any one of claims 1 to 9, the generator set being mounted on the base oil tank.

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