Fiber winding reinforced composite material water tank for rail transit, rail vehicle and method

Abstract

The invention belongs to the technical field of railway vehicles. According to the fiber winding reinforced composite material water tank for rail transit, the rail vehicle and the method, an integrated double-curved-surface wave-proof rotary body structure is designed, the functions of the water tank are integrated into an inner-layer structure and an outer-layer structure, the mechanical property is enhanced, the overall stability is guaranteed, and through structure and function integrated coupling, the water tank can be assembled and disassembled conveniently. The anti-wave function and rapid manufacturing of the water tank are achieved, the weight is reduced, the manufacturing qualification rate is improved, the service life of a product can be effectively prolonged, the production efficiency can be effectively improved, and cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and in particular to a fiber-wound reinforced composite water tank for rail transit, a rail vehicle and a method. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The onboard water tank of a rail vehicle is an important component of rail transportation equipment. The power source of a rail vehicle is usually electricity or a diesel engine. These power sources generate a lot of heat when working and need to be cooled to ensure their normal operation. The onboard water tank is connected to the engine water tank through a water pipe to provide cooling water for the engine to prevent it from overheating; in a passenger car, the water tank also provides daily living water for all train staff and passengers, such as washing, drinking, etc.

[0004] Existing on-board water tanks are mainly formed by welding of stainless steel materials, with wave-breaking plates installed inside to prevent the water from generating a large instantaneous impact on the water tank due to inertia when the vehicle changes speed. The wave-breaking plates are fully welded to the water tank body. This method has the following disadvantages: (1) The space for setting the wave-breaking plates is small, the welding operation is inconvenient, the welding quality is not easy to control, and it is easy to cause welding defects and water leakage hazards; (2) Large-area welding will cause the overall deformation of the product water tank, and the installation size cannot be guaranteed, resulting in installation difficulties; (3) There will be inclusions in the material at the weld position, and long-term immersion in water will cause electrochemical corrosion, which will accelerate leakage at the weld defect position; (4) There are many weld positions and the operation is inconvenient, which seriously affects production efficiency and increases costs. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a fiber-wound reinforced composite water tank, a rail vehicle and a method for rail transit, designs an integrated hyperbolic wave-breaking gyroscope structure, integrates the functionality of the water tank into the inner structure, and enhances the mechanical properties of the outer structure, thereby ensuring overall stability. Through the integrated coupling of structure and function, the wave-breaking function and rapid manufacturing of the water tank are achieved, the weight is reduced, the manufacturing qualification rate is improved, the product service life and production efficiency are effectively improved, and the cost is reduced.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a fiber-wound reinforced composite water tank for rail transit.

[0008] A fiber winding reinforced composite water tank for rail transit, comprising: a winding structure layer and a functional layer liner with a hyperbolic wave-breaking structure, wherein the functional layer liner is made of food-grade environmentally friendly materials, the functional layer liner is integrally formed, and the functional layer liner is provided with a plurality of grooves penetrating the functional layer liner;

[0009] The groove wall in the inner cavity of the functional layer liner acts as a wave-breaking plate, and space for water to flow through is reserved at the upper and lower parts of the groove. The winding structure layer is integrally wound on the outer surface of the functional layer liner using a fiber-reinforced composite material.

[0010] As a further limitation of the first aspect of the present invention, the groove is filled with reinforcing ribs.

[0011] As a further limitation of the second aspect of the present invention, the reinforcing ribs adopt a sandwich structure, the core material of the reinforcing ribs is honeycomb, foam or balsa wood, the outer layer of the reinforcing ribs is covered with fiber reinforced composite materials, the matrix of the reinforcing ribs is the same as the winding structure layer, and the matrix of the reinforcing ribs is co-cured and connected with the winding structure layer.

[0012] As a further limitation of the first aspect of the present invention, it also includes a process seat, which is located at one end of the functional layer liner and is embedded in the interior of the functional layer liner during the functional layer liner forming stage.

[0013] As a further limitation of the first aspect of the present invention, it also includes an operation port flange, which is located at the other end of the functional layer inner liner and is embedded in the interior of the functional layer inner liner during the functional layer inner liner molding stage.

[0014] As a further limitation of the first aspect of the present invention, it also includes a pipe joint, which is arranged in the middle position of the functional layer liner and is embedded in the interior of the functional layer liner during the functional layer liner molding stage.

[0015] As a further limitation of the first aspect of the present invention, before the fiber reinforced composite material is integrally wound and formed, the surface of the functional layer liner is subjected to a plasma and coupling agent dual-phase surface treatment.

[0016] As a further limitation of the first aspect of the present invention, it also includes a connecting seat, which is glued to the winding structure layer and then wound around the connecting layer, and co-cured to form an integrated structure with the winding structure layer.

[0017] As a further limitation of the first aspect of the present invention, it further includes an operation port end cover, wherein the operation port end cover is connected to the operation port flange via a connecting piece.

[0018] In a second aspect, the present invention provides a method for preparing a fiber-wound reinforced composite water tank for rail transit according to the first aspect, comprising the following steps:

[0019] The functional layer liner of the hyperbolic wave-breaking structure is prepared in an integrated manner, and the process seat, the operation port flange and the pipeline joint are embedded in the functional layer liner forming stage;

[0020] Filling reinforcing ribs in the groove of the functional layer liner;

[0021] The outer surface of the functional layer liner is subjected to plasma and coupling agent dual-phase surface treatment, and the outer wall of the functional layer liner is integrally wound and formed using a fiber-reinforced composite material;

[0022] The connecting seat is used for structural installation of the vehicle body and the water tank. The connecting seat and the winding structural layer are bonded and then the connecting layer is wound around the connecting layer for co-curing, so that the connecting seat and the outer structural layer form an integrated structure.

[0023] In a third aspect, the present invention provides a rail vehicle, comprising the fiber-wound reinforced composite water tank for rail transit as described in the first aspect of the present invention.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention innovatively proposes a fiber-wound reinforced composite water tank for rail transit, designs an integrated hyperbolic wave-breaking rotating body structure, integrates the functionality of the water tank into the inner structure, and the outer structure enhances the mechanical properties to ensure overall stability. Through the integrated coupling of structure and function, the wave-breaking function and rapid manufacturing of the water tank are realized, the weight is reduced, the manufacturing qualification rate is improved, the product service life and production efficiency can be effectively improved, and the cost is reduced.

[0026] 2. The present invention innovatively proposes a fiber-wound reinforced composite water tank for rail transit. By using the principle of bionics, a hyperbolic wave-breaking rotating body water tank structure is constructed, which can replace the existing wave-breaking plate. The structure is simpler and more novel. The inner layer structure of the tank is innovatively formed in one piece without welds, which can effectively avoid defects and prevent leakage.

[0027] 3. The interface of the inner and outer layer structure of the present invention adopts dual-phase treatment, which effectively improves the interface bonding strength and ensures the integrity of the structure. The outer layer structure adopts an integrated composite material variable angle winding molding to improve the structural mechanical properties.

[0028] 4. The present invention adopts new materials and new structural design, and the overall weight is reduced by more than 40% compared with the existing metal water tank, which can effectively reduce the overall operating cost; the structure adopts one-piece molding, with high production efficiency, and the production cost is reduced by more than 30% compared with the existing metal water tank.

[0029] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 Schematic diagram of a fiber-wound reinforced composite water tank for rail transit provided by the present invention Figure 1 ;

[0032] Figure 2 Schematic diagram of a fiber-wound reinforced composite water tank for rail transit provided by the present invention Figure 2 ;

[0033] Figure 3 Schematic diagram of the functional layer liner provided by the present invention Figure 1 ;

[0034] Figure 4 Schematic diagram of the functional layer liner Figure 2 ;

[0035] Among them, 1-functional layer liner; 2-reinforcement ribs; 3-winding structure layer; 4-operation port end cover; 5-process seat; 6-M-shaped connecting seat; 7-connection layer; 8-pipeline joint; 9-operation port flange. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0038] In this implementation, if Figure 1 and Figure 2 As shown, a fiber winding reinforced composite water tank for rail transit is proposed, comprising: a winding structure layer 3 and a functional layer liner 1 of a hyperbolic wave-breaking structure, which can obtain the same wave-breaking function as a traditional water tank wave-breaking plate, the functional layer liner 1 is made of food-grade environmentally friendly materials, the functional layer liner 1 is integrally formed, and the functional layer liner 1 is provided with a plurality of grooves penetrating the functional layer liner 1;

[0039] like Figure 3 and Figure 4As shown, the groove wall in the inner cavity of the functional layer liner 1 acts as a wave-breaking plate, and space for water to flow through is left at the upper and lower parts of the groove. The winding structure layer 3 is integrally wound on the outer surface of the functional layer liner 1 using a fiber-reinforced composite material.

[0040] In this implementation, optionally, the groove is filled with a reinforcing rib 2, the reinforcing rib 2 adopts a sandwich structure, the core material of the reinforcing rib 2 uses a lightweight material such as honeycomb, foam or balsa wood, the outer layer of the reinforcing rib 2 is covered with a fiber-reinforced composite material, the matrix of the reinforcing rib 2 is the same as the winding structure layer 3, the matrix of the reinforcing rib 2 and the winding structure layer 3 are co-cured and connected, which acts as a radial reinforcement of the water tank and improves the structural rigidity and stability.

[0041] In the present implementation, optionally, a process seat 5 is further included, wherein the process seat 5 is located at one end of the functional layer liner 1, and the process seat 5 is embedded in the interior of the functional layer liner 1 during the molding stage of the functional layer liner 1 to form an integrated connection structure.

[0042] In the present implementation, optionally, an operation port flange 9 is further included, wherein the operation port flange 9 is located at the other end of the functional layer liner 1, and the operation port flange 9 is embedded in the interior of the functional layer liner 1 during the molding stage of the functional layer liner 1 to form an integrated connection structure.

[0043] In this implementation, the process seat 5 and the operation port flange 9 can provide the function of the process clamping mandrel when the outer structure layer is wound and formed, and can also be used as two hanging points when the composite material water tank is installed.

[0044] In the present implementation, optionally, a pipe connector 8 is further included, which is arranged in the middle position of the functional layer liner 1, and the pipe connector 8 is embedded in the interior of the functional layer liner 1 during the molding stage of the functional layer liner 1 to form an integrated connection structure. The pipe connector 8 is used to connect with the water inlet, water outlet and overflow pipes of the vehicle body.

[0045] In this implementation, optionally, before the fiber-reinforced composite material is integrally wound and formed, the surface of the functional layer liner 1 is subjected to a plasma and coupling agent dual-phase surface treatment to achieve an integrated coupling of structure and function and enhance the interface connection strength.

[0046] In the present implementation, optionally, an M-shaped connection seat 6 is further included. The M-shaped connection seat 6 is bonded to the winding structure layer 3 and then the winding connection layer 7 is wound and co-cured to form an integrated structure with the M-shaped connection seat 6 and the winding structure layer 3.

[0047] In the present implementation, optionally, an operation port end cover 4 is further included, wherein the operation port end cover 4 is detachably connected to the operation port flange 9 via a connector, and the operation port end cover 4 is made of metal for later cleaning of the water tank.

[0048] The method for preparing the above-mentioned fiber-wound reinforced composite water tank for rail transit includes the following steps:

[0049] The functional layer liner 1 of the hyperbolic wave-breaking structure is integrated, and the process seat 5, the operation port flange 9 and the pipeline joint 8 are embedded in the functional layer liner 1 during the molding stage;

[0050] Filling the reinforcing ribs 2 in the groove of the functional layer liner 1;

[0051] The outer surface of the functional layer liner 1 is subjected to plasma and coupling agent dual-phase surface treatment, and the outer wall of the functional layer liner 1 is integrally wound and formed by using a fiber-reinforced composite material;

[0052] The M-shaped connection seat 6 is used for structural installation of the vehicle body and the water tank. The M-shaped connection seat 6 is bonded to the winding structure layer 3 and then wound with the connection layer 7 for co-curing, so that the M-shaped connection seat 6 and the outer structure layer form an integrated structure.

[0053] Embodiment 2:

[0054] Embodiment 2 of the present invention provides a rail vehicle, comprising the fiber-wound reinforced composite water tank for rail transit described in Embodiment 1 of the present invention, which is connected to the body of the rail vehicle via an M-shaped connecting seat 6 .

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fiber-wound reinforced composite water tank for rail transit, characterized in that: include: A functional layer liner with a winding structure layer and a hyperbolic wave-proof structure, wherein the functional layer liner is made of food-grade environmentally friendly materials, the functional layer liner is integrally formed, and the functional layer liner is provided with a plurality of grooves penetrating the functional layer liner; The groove wall in the inner cavity of the functional layer liner acts as a wave-breaking plate, and space for water to flow through is reserved at the upper and lower parts of the groove. The winding structure layer is integrally wound on the outer surface of the functional layer liner using a fiber-reinforced composite material.

2. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: The groove is filled with reinforcing ribs.

3. The fiber-wound reinforced composite water tank for rail transit according to claim 2, characterized in that: The reinforcing rib plate adopts a sandwich structure, the core material of the reinforcing rib plate is honeycomb, foam or balsa wood, the outer layer of the reinforcing rib plate is covered with fiber reinforced composite material, the matrix of the reinforcing rib plate is the same as the winding structure layer, and the matrix of the reinforcing rib plate and the winding structure layer are co-cured and connected.

4. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: It also includes a process seat and an operation port flange, wherein the process seat is located at one end of the functional layer liner, and the process seat is embedded in the interior of the functional layer liner during the functional layer liner forming stage; The operation port flange is located at the other end of the functional layer inner liner, and the operation port flange is embedded in the interior of the functional layer inner liner during the functional layer inner liner molding stage.

5. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: It also includes a pipeline joint, which is arranged in the middle position of the functional layer inner liner and is embedded in the interior of the functional layer inner liner during the functional layer inner liner molding stage.

6. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: Before the fiber reinforced composite material is used for integral winding, the surface of the functional layer liner is subjected to a plasma and coupling agent dual-phase surface treatment.

7. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: It also includes a connection seat, which is bonded to the winding structure layer and then wound around the connection layer, and then co-cured to form an integrated structure with the winding structure layer.

8. The fiber-wound reinforced composite water tank for rail transit according to claim 1, characterized in that: It also includes an operation port end cover, which is connected to the operation port flange through a connecting piece.

9. A method for preparing a fiber-wound reinforced composite water tank for rail transit according to any one of claims 1 to 8, characterized in that: The process includes: The functional layer liner of the hyperbolic wave-breaking structure is prepared in an integrated manner, and the process seat, the operation port flange and the pipeline joint are embedded in the functional layer liner forming stage; Filling reinforcing ribs in the groove of the functional layer liner; The outer surface of the functional layer liner is subjected to plasma and coupling agent dual-phase surface treatment, and the outer wall of the functional layer liner is integrally wound and formed using a fiber-reinforced composite material; The connecting seat is used for structural installation of the vehicle body and the water tank. The connecting seat and the winding structural layer are bonded and then the connecting layer is wound around the connecting layer for co-curing, so that the connecting seat and the outer structural layer form an integrated structure.

10. A rail vehicle, characterized in that: A fiber-wound reinforced composite water tank for rail transit comprising any one of claims 1-8.

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