Composite polypropylene pipe for new energy automobile

Abstract

The utility model discloses a composite polypropylene pipe for a new energy automobile. The composite polypropylene pipe comprises a pipe body, a grid layer, a buffer layer, a glass wool heat insulation layer and a nanometer antifouling layer. By optimizing the structure of the composite polypropylene pipe, the composite polypropylene pipe can have the anti-vibration function, the situations of fatigue fracture and the like caused by long-term vibration are weakened, the service life is prolonged, the situations of liquid flow blocking and unstable conveying amount caused by vibration are reduced, vibration reduction and buffering are achieved through the grid layer and the buffering layer, and the service life of the composite polypropylene pipe is prolonged. And the glass wool heat insulation layer is used for achieving the heat insulation effect, the nanometer antifouling layer and the nanometer coating achieve antifouling bonding, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pipes, in particular to a composite polypropylene pipe for new energy vehicles. Background Art

[0002] The areas where composite polypropylene pipes are used in new energy vehicles mainly include the following aspects: cooling system, air conditioning system, braking system, power system and other auxiliary systems, which are used to transport liquids. The use of composite polypropylene pipes for such pipes is mainly because they have the advantages of light weight, chemical corrosion resistance, high temperature resistance, low cost, etc., and can meet the requirements of new energy vehicles in terms of performance, safety and cost.

[0003] Chinese Patent No. CN201220233367.4 discloses "A Polypropylene Pipe", which can effectively absorb these active free radicals by adding an anti-aging agent layer, making it impossible for them to age plastic products. On the premise of having all the advantages of ordinary polypropylene pipes, the service life of the pipe is longer;

[0004] This structure has certain advantages, but there are still some deficiencies:

[0005] This document optimizes the material of the pipe to make the service life of the pipe longer. However, when the pipe is in use, affected by external factors such as vehicle vibration, the pipe vibrates. Long-term vibration will cause the hose material to fatigue, resulting in damage such as cracks and ruptures, shortening the service life of the hose. Similarly, the service life of the pipe will also be short. Therefore, it is necessary to optimize the structure of the pipe to make it more durable in use, and the vibration may affect the flow of liquids such as oil and coolant in the hose, resulting in unstable delivery volume and affecting the normal operation of related systems. Summary of the Utility Model

[0006] Therefore, in order to solve the above deficiencies, the utility model provides a composite polypropylene pipe for new energy vehicles.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions: A composite polypropylene pipe for new energy vehicles, including a pipe body, a grid layer, a buffer layer, a glass wool heat insulation layer, and a nano anti-pollution layer;

[0008] The grid layer is fixed on the outer side of the pipe body, and the grid layer plays a shock-absorbing role through the grid structure;

[0009] The buffer layer is adhesively fixed on the outer side of the grid layer, and the buffer layer is used for vibration prevention to weaken the influence brought by external vibration;

[0010] The glass wool heat insulation layer is arranged on the outer side of the buffer layer, and the glass wool heat insulation layer is used for heat insulation;

[0011] A nano anti-fouling layer is sprayed on the outer side of the glass wool heat insulation layer, and the nano anti-fouling layer is used to prevent dirt adhesion.

[0012] Preferably, the pipe body includes a hose, a connection thickening area, and a nano coating. Connection thickening areas are provided at both the left and right ends of the hose, and nano coatings are sprayed on the outer sides of the hose and the connection thickening areas.

[0013] Further preferably, the cross-section of the pipe body is in the shape of "I", which is convenient for connecting with other parts at both ends, and the recessed middle part is convenient for arranging a grid layer and a buffer layer. The grid layer and the buffer layer are used to achieve a shock-absorbing effect, effectively reducing the vibration fatigue of the pipe body and avoiding the problem that the liquid flow is affected by vibration.

[0014] Further preferably, a gap is provided between the connection thickening area and the buffer layer to prevent the connection thickening area and the buffer layer from colliding with each other and providing a buffer space for the movement of the buffer layer.

[0015] Further preferably, the grid layer and the buffer layer are made of the same material, both made of rubber, with good elasticity and wear resistance, and can effectively absorb vibration and impact force.

[0016] Further preferably, the hose is made of composite polypropylene material, which has been comprehensively improved in terms of strength, stiffness, corrosion resistance, wear resistance, etc., can better adapt to different temperature conditions, and can still maintain good performance and stability in high-temperature or low-temperature environments. It has better tolerance and corrosion resistance to various chemical media such as acid, alkali, and salt solutions, and the polypropylene material has anti-aging ability after being compounded with additives such as antioxidants and ultraviolet absorbers.

[0017] Further preferably, the glass wool heat insulation layer is made of glass wool, with good heat insulation effect and relatively low cost, and is suitable for pipe heat insulation under general temperature conditions.

[0018] Further preferably, the nano anti-fouling layer and the nano coating are both nano coatings, with anti-fouling and self-cleaning functions. That is, the superhydrophobic or superoleophobic properties of the nano coating can significantly reduce the adhesion of dirt, dust, oil stains, etc., reduce the frequency and cost of cleaning and maintenance, enhance the heat insulation performance, further reduce heat transfer, reduce energy consumption, increase durability, and it has a certain isolation and anti-aging effect, protecting the glass wool heat insulation layer and the hose from the erosion of the external environment, extending their service life, and reducing the performance degradation and replacement cost caused by aging, corrosion, etc.

[0019] The beneficial effects of the present utility model:

[0020] The utility model optimizes the structure of the composite polypropylene pipe, enabling it to have the function of vibration prevention, weakening the fatigue rupture and other conditions caused by long-term vibration, extending the service life, and reducing the situation of liquid flow obstruction and unstable conveying volume caused by vibration. The grid layer and the buffer layer are used to achieve vibration reduction and buffering, and the glass wool heat insulation layer plays a heat insulation role. The nano anti-fouling layer and the nano coating achieve anti-fouling bonding, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic three-dimensional structure diagram of the utility model;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the utility model;

[0023] Figure 3 is a schematic cross-sectional structure diagram of the utility model;

[0024] Figure 4 is a schematic cross-sectional structure diagram of the pipe body of the utility model.

[0025] Wherein: pipe body - 1, grid layer - 2, buffer layer - 3, glass wool heat insulation layer - 4, nano anti-fouling layer - 5, hose - 11, connection thickening area - 12, nano coating - 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to further explain the technical solution of the utility model, the following will be elaborated in detail through specific embodiments.

[0027] Please refer to Figures 1-3 , the utility model provides a composite polypropylene pipe for new energy vehicles, including a pipe body 1, a grid layer 2, a buffer layer 3, a glass wool heat insulation layer 4, and a nano anti-fouling layer 5; the grid layer 2 is fixedly arranged on the outer side of the pipe body 1, and the grid layer 2 plays a shock absorption role through the grid structure; the buffer layer 3 is adhesively fixed on the outer side of the grid layer 2, and the buffer layer 3 is used for vibration prevention to weaken the influence brought by external vibration; the glass wool heat insulation layer 4 is arranged on the outer side of the buffer layer 3, and the glass wool heat insulation layer 4 is used for heat insulation; the nano anti-fouling layer 5 is sprayed on the outer side of the glass wool heat insulation layer 4, and the nano anti-fouling layer 5 is used for preventing dirt adhesion. The cross-section of the pipe body 1 is in an "I" shape, which is convenient for connecting with other parts at both ends, and the recessed middle part is convenient for arranging the grid layer 2 and the buffer layer 3. The grid layer 2 and the buffer layer 3 are used to achieve the shock absorption effect, effectively reducing the vibration fatigue of the pipe body 1 and avoiding the problem of liquid flow being affected by vibration.

[0028] Among them, in the grid layer 2, the rubber of the grid structure plays a double shock-absorbing role. When subjected to vibration, the grid structure can absorb and disperse the vibration energy, thereby reducing the vibration of the inner tube and achieving an anti-vibration effect. Moreover, when subjected to vibration or impact, the rods of the grid will deform, converting the vibration energy into the elastic potential energy and heat energy of the rods, thereby reducing the energy transmitted to the protected object. The natural frequency of the grid structure is different from that of the protected object. When vibration occurs, the two will not resonate, thereby reducing the impact of vibration. The force generated by vibration is evenly distributed over a larger area through the grid structure, reducing local stress concentration and minimizing damage to key parts. The rods in the grid structure are interconnected and friction with each other, increasing the damping of the entire system, thereby suppressing the amplitude and duration of vibration.

[0029] In addition, through the setting of the glass wool heat insulation layer 4, it can effectively play a heat insulation role. For example, during the transportation of liquid oil, when the ambient temperature where the pipeline is located is relatively low, heat insulation can prevent the oil temperature from dropping too quickly, ensuring the fluidity and process performance of the oil. When used in an air conditioning system, it can keep the coolant warm and avoid the temperature rising during transportation. Moreover, when spraying the nano anti-fouling layer 5 on the outside of the glass wool heat insulation layer 4, a primer can be used to strengthen the adhesion between the two. Such as epoxy primer, polyurethane primer, acrylic primer, etc., can all be used to enhance the bonding force between the nano material and the surface of the glass wool.

[0030] Please refer to Figure 4 , the present utility model provides a composite polypropylene pipe for new energy vehicles. The pipe body 1 includes a hose 11, a connection thickening area 12, and a nano coating 13. Connection thickening areas 12 are provided at both the left and right ends of the hose 11, and nano coatings 13 are sprayed on the outside of the hose 11 and the connection thickening areas 12. There is a gap between the connection thickening area 12 and the buffer layer 3 to prevent the connection thickening area 12 and the buffer layer 3 from colliding with each other and provide a buffer space for the movement of the buffer layer 3.

[0031] Refer to Figures 1-4 , during use, the pipe body 1 is used to connect two parts to conduct the transportation of liquid;

[0032] During the use process, the grid layer 2 and the buffer layer 3 are used for anti-vibration, and the glass wool heat insulation layer 4 is used for heat insulation to prevent the heat of the liquid transported inside from dissipating. In addition, the nano anti-fouling layer 5 and the nano coating 13 are used to play the roles of anti-fouling adhesion and bonding, keeping the outside of the pipe clean and effectively reducing the maintenance cost.

[0033] The control method of the present utility model is controlled by manually starting and closing a switch. The wiring diagram of the power element and the power supply provision belong to the common knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices, so the control method and wiring layout of the present utility model will not be further explained in detail.

[0034] The control method of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of power also belongs to the common knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices. Therefore, the control method and circuit connection of the present utility model will not be explained in detail herein.

[0035] The above are only the preferred examples of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite polypropylene pipe for new energy vehicles, characterized in that: It comprises a pipe body (1), a mesh layer (2), a buffer layer (3), a glass wool heat insulation layer (4), and a nano antifouling layer (5); A mesh layer (2) is fixed on the outer side of the pipe body (1), and the mesh layer (2) plays a shock-absorbing role through the mesh structure; A buffer layer (3) is bonded and fixed to the outer side of the mesh layer (2), and the buffer layer (3) is used to prevent vibration and reduce the impact of external vibration; A glass wool heat insulation layer (4) is arranged on the outer side of the buffer layer (3), and the glass wool heat insulation layer (4) is used for heat insulation; The outer side of the glass wool heat insulation layer (4) is sprayed with a nano anti-fouling layer (5), and the nano anti-fouling layer (5) is used to prevent dirt from sticking.

2. According to claim 1, a composite polypropylene pipe for new energy vehicles is characterized in that: The pipe body (1) comprises a hose (11), a connection thickened area (12), and a nano coating (13); the connection thickened area (12) is provided at both left and right ends of the hose (11); and the outer sides of the hose (11) and the connection thickened area (12) are sprayed with the nano coating (13).

3. According to claim 1, a composite polypropylene pipe for new energy vehicles is characterized in that: The cross section of the pipe body (1) is in the shape of an I.

4. According to claim 2, a composite polypropylene pipe for new energy vehicles, characterized in that: A gap is provided between the connecting thickened area (12) and the buffer layer (3).

5. According to claim 1, a composite polypropylene pipe for new energy vehicles is characterized in that: The mesh layer (2) and the buffer layer (3) are made of the same material, both made of rubber.

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