Methanol oil tank and vehicle

By coating the inner wall of the methanol fuel tank with a methanol-resistant layer and using an aluminum alloy substrate, the corrosion problem between methanol and the metal tank is solved, ensuring the quality of the oil and improving the corrosion resistance and service life of the methanol fuel tank.

CN223370606UActive Publication Date: 2025-09-23ZHEJIANG GEELY HLDG GRP CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422704052.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-09-23
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

The metal material of existing methanol fuel tanks easily reacts with methanol, causing corrosion and affecting the quality of the fuel.

Method used

A methanol-resistant layer is coated or rotationally molded on the inner wall of the metal box of the methanol fuel tank to form a first protective layer to prevent methanol from contacting the metal. Polyethylene or rotationally molded materials are used, combined with an aluminum alloy substrate, to set partitions and coat the methanol-resistant layer.

Benefits of technology

It effectively prevents methanol from corroding the tank, protects oil quality, improves corrosion resistance and service life, and reduces weight and manufacturing costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223370606U_ABST
    Figure CN223370606U_ABST
Patent Text Reader

Abstract

The utility model discloses a methanol fuel tank and a vehicle, the methanol fuel tank comprises a tank body, the tank body comprises a tank body base body and a first protective layer, the first protective layer covers the inner wall of the tank body base body, the tank body base body is a metal piece, and the first protective layer is a methanol-resistant layer. According to the methanol oil tank disclosed by the embodiment of the utility model, the tank body comprises the tank body base body made of the metal material and the first protective layer covered on the inner wall of the tank body base body, the first protective layer is the methanol-resistant layer and does not react with methanol, so that the tank body can be prevented from being corroded by the methanol when methanol fuel is stored in the tank body; the influence on the quality of the oil product due to the corrosion of the box body by methanol is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a methanol fuel tank and a vehicle. Background Art

[0002] In the prior art, methanol fuel tanks are made of metal. However, methanol is an oxidant and easily reacts with the material of the tank, causing corrosion of the tank and affecting the quality of the fuel. Therefore, there is room for improvement. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a methanol fuel tank that can prevent methanol from corroding the tank body when storing methanol fuel therein, and also prevent the quality of the fuel product affected by methanol corrosion.

[0004] The utility model also provides a vehicle with the methanol fuel tank.

[0005] According to the first embodiment of the present invention, the methanol fuel tank includes a tank body, which includes a tank body base and a first protective layer. The first protective layer covers the inner wall of the tank body base. The tank body base is a metal part, and the first protective layer is a methanol-resistant layer.

[0006] According to the methanol fuel tank of the embodiment of the present invention, the tank body is set to include a tank base made of metal material and a first protective layer covering the inner wall of the tank base. The first protective layer is a methanol-resistant layer. The first protective layer does not react with methanol. In this way, when methanol fuel is stored in the tank body, methanol corrosion to the tank body can be avoided, and the impact of methanol corrosion on the quality of the oil product can also be avoided.

[0007] According to some embodiments of the present invention, the first protective layer is a polyethylene layer.

[0008] According to some embodiments of the present invention, the first protective layer is a rotationally molded layer.

[0009] According to some embodiments of the present invention, the thickness of the first protective layer ranges from 1 mm to 6 mm.

[0010] According to some embodiments of the present invention, the thickness of the box base ranges from 1 mm to 6 mm.

[0011] According to some embodiments of the present invention, the ratio of the thickness of the first protective layer to the thickness of the box base is 0.5-2.

[0012] According to some embodiments of the present invention, the box base is an aluminum alloy part.

[0013] According to some embodiments of the present invention, an uneven rough layer is formed on the inner wall of the box base or a phosphate layer is formed on the inner wall of the box base.

[0014] According to some embodiments of the present invention, the methanol fuel tank also includes at least one partition, which is a metal part. The partition is arranged in the box body to divide the inner cavity of the box body into multiple chambers. The partition is provided with multiple through holes, and the through holes connect the chambers located on opposite sides of the partition. The partition includes a partition base and a second protective layer, and the second protective layer covers the surface of the partition base. The second protective layer is a methanol-resistant layer.

[0015] A vehicle according to an embodiment of the second aspect of the present utility model includes: a methanol fuel tank according to an embodiment of the first aspect of the present utility model.

[0016] According to the vehicle of the embodiment of the present invention, by providing the above-mentioned methanol fuel tank, it is possible to avoid methanol corrosion of the tank body and also to avoid the impact of methanol corrosion on the quality of the oil product.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a perspective schematic diagram of a methanol fuel tank according to some embodiments of the present utility model;

[0020] Figure 2 yes Figure 1 The main diagram of the methanol tank in the;

[0021] Figure 3 yes Figure 1 A longitudinal cross-sectional view of the methanol tank;

[0022] Figure 4 yes Figure 1 A transverse cross-sectional view of the methanol tank.

[0023] Reference numerals:

[0024] 100. Methanol fuel tank;

[0025] 10. Box; 101. Chamber;

[0026] 11. Tank body; 111. Refueling port; 112. Liquid level gauge installation port; 113. Breathing valve port; 12. End cover;

[0027] 13. Box body; 14. First protective layer;

[0028] 20. Partition; 21. Through hole. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] Reference below Figure 1-Figure 4 A methanol fuel tank 100 according to an embodiment of the present invention is described.

[0031] Reference Figure 1-Figure 3 According to the first embodiment of the present invention, the methanol fuel tank 100 includes a tank body 10, in which the user stores methanol fuel. For example, a refueling port 111 may be provided on the tank body 10, through which methanol fuel can be added to the tank body 10.

[0032] The box body 10 includes a box body base 13 and a first protective layer 14 . The first protective layer 14 covers the inner wall of the box body base 13 . The box body base 13 is a metal part, and the first protective layer 14 is a methanol-resistant layer.

[0033] The methanol-resistant layer is made of a material that does not react with methanol. The first protective layer 14 is a methanol-resistant layer. This allows the methanol fuel placed in the housing 10 to come into contact with the first protective layer 14 without coming into contact with the housing base 13. The first protective layer 14 isolates the methanol fuel in the housing 10 from the housing base 13, preventing the methanol fuel placed in the housing 10 from coming into contact with the housing base 13 and reacting with it.

[0034] Optionally, the first protective layer 14 may be a coating. For example, the first protective layer 14 may be coated on the inner wall of the box base 13 by spraying or brushing.

[0035] Optionally, the first protective layer 14 may also be covered on the inner wall of the box base 13 by a rotational molding process.

[0036] Optionally, the box body 10 may be a rectangular box body 10 .

[0037] For example, the box body 10 may include a box body 10 and end caps 12. The box body 10 has two open ends, and the end caps 12 are provided, one for each open end of the box body 10. The base of the box body 10 and the base of the end caps 12 constitute a box body base 13. A portion of the first protective layer 14 covers the base of the box body 10, and another portion of the first protective layer 14 covers the base of the end caps 12. The base of the box body 10 and the base of the end caps 12 may be welded.

[0038] According to the methanol fuel tank 100 of the embodiment of the present invention, the tank body 10 is configured to include a tank base 13 made of metal and a first protective layer 14 covering the inner wall of the tank base 13. The first protective layer 14 is a methanol-resistant layer, and the first protective layer 14 does not react with methanol. In this way, when methanol fuel is stored in the tank body 10, methanol corrosion of the tank body 10 can be avoided, and the quality of the oil product affected by methanol corrosion of the tank body 10 can also be avoided.

[0039] According to some embodiments of the present invention, the first protective layer 14 is a polyethylene layer. By setting the first protective layer 14 as a polyethylene layer, the polyethylene coating has good tolerance to methanol, which can improve the corrosion resistance and service life of the methanol tank 100. The polyethylene layer also has good impact resistance and is not easily damaged. In addition, when the first protective layer 14 is directly coated or integrally injection-molded on the box base 13, when the first protective layer 14 is set as a polyethylene layer, the raw material of the polyethylene layer has good fluidity when coated or integrally injection-molded on the box base 13. The good fluidity can enable the first protective layer 14 to cover the welds, the gaps between the partitions 20, the flange mounting ports, etc. in the box base 13, so that the first protective layer 14 better covers the inner wall of the box base 13.

[0040] According to some embodiments of the present invention, the first protective layer 14 is a rotationally molded layer. Forming the first protective layer 14 on the inner wall of the box base 13 using rotational molding allows the first protective layer 14 to better cover the inner wall of the box base 13. During the process of forming the first protective layer 14 on the inner wall of the box base 13 using rotational molding, the raw material for the first protective layer 14 is added to the box base 13. The box base 13 is continuously rotated and heated along two or three perpendicular axes, so that the raw material for the first protective layer 14 is gradually and evenly coated, melted, and adhered to the inner surface of the box base 13 under the action of gravity and thermal energy, forming it into the desired shape.

[0041] According to some embodiments of the present invention, a rough, uneven layer is formed on the inner wall of the box base 13. Forming the rough, uneven layer on the inner wall of the box base 13 can improve the adhesion between the first protective layer 14 and the box base 13. For example, the inner wall of the box base 13 can be sandblasted to form the rough, uneven layer on the inner wall of the box base 13.

[0042] According to some embodiments of the present invention, a phosphate layer is formed on the inner wall of the box base 13. For example, the inner wall of the box base 13 can be phosphated to form a phosphate layer on the inner wall of the box base 13. By forming a phosphate layer on the inner wall of the box base 13, the adhesion between the first protective layer 14 and the box base 13 can be improved.

[0043] For example, before covering the first protective layer 14 on the inner wall of the box base 13, the inner wall of the box base 13 can be pretreated, for example, the inner wall of the box base 13 can be roughened to form a rough layer or the inner wall of the box base 13 can be phosphated to form a phosphating layer.

[0044] According to some embodiments of the present invention, the thickness of the first protective layer 14 ranges from 1 mm to 6 mm. For example, the thickness of the first protective layer 14 can be 1 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 6 mm, etc. By setting the thickness of the first protective layer 14 to 1 mm to 6 mm, the first protective layer 14 can have an appropriate thickness, which can ensure that the first protective layer 14 provides a good protective effect and prevent the first protective layer 14 from being too thick, which would result in an excessively thick wall of the box body 10.

[0045] According to some embodiments of the present invention, the thickness of the box base 13 ranges from 1 mm to 6 mm. For example, the thickness of the box base 13 can be 1 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 6 mm, etc. By setting the thickness of the box base 13 to 1 mm to 6 mm, the structural strength of the box 10 can be ensured, and the excessive weight of the box 10 caused by the excessive thickness of the box base 13 can be avoided.

[0046] According to some embodiments of the present invention, the ratio of the thickness of the first protective layer 14 to the thickness of the box base 13 is 0.5 to 2. For example, the ratio of the thickness of the first protective layer 14 to the thickness of the box base 13 can be 0.5, 0.7, 1.0, 1.2, 1.5, 1.8, 2.0, etc. By setting the ratio of the thickness of the first protective layer 14 to the thickness of the box base 13 to 0.5 to 2, the structural strength of the box 10 can be ensured, and the first protective layer 14 can have a better protective effect.

[0047] According to some embodiments of the present invention, the tank base 13 is an aluminum alloy. This reduces the weight of the tank base 13, thereby reducing the weight of the methanol tank 100, compared to steel or iron. Furthermore, aluminum alloys are easier to form, resulting in lower manufacturing costs.

[0048] According to some embodiments of the present invention, referring to Figure 3 and Figure 4 The methanol fuel tank 100 further includes at least one partition 20. If the methanol fuel tank 100 includes multiple partitions 20, the multiple partitions 20 are spaced apart along the length of the methanol fuel tank 100. The partition 20 is a metal component and is disposed within the housing 10 to divide the interior of the housing 10 into multiple chambers 101. The partition 20 can be welded to the housing 10. The partition 20 is provided with multiple through-holes 21, which connect the chambers 101 on opposite sides of the partition 20. The provision of the partition 20 can improve the overall structural strength of the methanol fuel tank 100. The multiple through-holes 21 formed on the partition 20 can also connect the chambers 101 on opposite sides of the partition 20.

[0049] The separator 20 comprises a separator base and a second protective layer, which covers the surface of the separator base and is a methanol-resistant layer. By configuring the separator 20 to include a metal separator base and a second protective layer covering the separator base, the second protective layer being a methanol-resistant layer and non-reactive with methanol, methanol corrosion of the separator 20 can be prevented when methanol fuel is stored in the tank 10, thereby preventing the degradation of fuel quality caused by methanol corrosion.

[0050] Optionally, the second protective layer may be a coating. For example, the second protective layer may be coated on the partition substrate by spraying or brushing.

[0051] Optionally, the second protective layer may also be covered on the partition substrate by a rotational molding process.

[0052] Optionally, the first protective layer 14 and the second protective layer are made of the same material. For example, the second protective layer may be a polyethylene layer.

[0053] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The box body 10 may also be provided with a liquid level gauge installation port 112, which is used to install a liquid level gauge, which is used to detect the oil level height in the box body 10.

[0054] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The box body 10 may also be provided with a breathing valve port 113 , which is used to install a breathing valve, which is used to balance the pressure inside and outside the box body 10 .

[0055] The vehicle according to the embodiment of the second aspect of the present invention includes: the methanol fuel tank 100 according to the embodiment of the first aspect of the present invention.

[0056] According to the vehicle of the embodiment of the present invention, by providing the above-mentioned methanol fuel tank 100, it is possible to prevent methanol from corroding the tank body 10 and also to prevent the quality of the fuel product from being affected by the corrosion of the tank body 10 by methanol.

[0057] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A methanol fuel tank (100), characterized in that: The invention comprises a box body (10), wherein the box body (10) comprises a box body base (13) and a first protective layer (14), wherein the first protective layer (14) covers the inner wall of the box body base (13), the box body base (13) is a metal part, and the first protective layer (14) is a methanol-resistant layer.

2. The methanol fuel tank (100) according to claim 1, characterized in that The first protective layer (14) is a polyethylene layer.

3. The methanol fuel tank (100) according to claim 1, characterized in that: The first protective layer (14) is a rotationally molded layer.

4. The methanol fuel tank (100) according to claim 1, characterized in that The thickness of the first protective layer (14) ranges from 1 mm to 6 mm.

5. The methanol fuel tank (100) according to claim 1, characterized in that: The thickness of the box base (13) ranges from 1 mm to 6 mm.

6. The methanol fuel tank (100) according to claim 1, characterized in that: The ratio of the thickness of the first protective layer (14) to the thickness of the box base (13) is 0.5-2.

7. The methanol fuel tank (100) according to any one of claims 1 to 6, characterized in that: The box body base (13) is an aluminum alloy part.

8. The methanol fuel tank (100) according to any one of claims 1 to 6, characterized in that: The inner wall of the box body base (13) is formed with an uneven rough layer or the inner wall of the box body base (13) is formed with a phosphate layer.

9. The methanol fuel tank (100) according to any one of claims 1 to 6, characterized in that: The methanol fuel tank (100) further includes at least one partition (20), which is a metal part. The partition (20) is arranged in the box body (10) to divide the inner cavity of the box body (10) into a plurality of chambers (101). The partition (20) is provided with a plurality of through holes (21), and the through holes (21) are connected to the chambers (101) located on opposite sides of the partition (20). The partition (20) includes a partition substrate and a second protective layer, and the second protective layer covers the surface of the partition substrate. The second protective layer is a methanol-resistant layer.

10. A vehicle, characterized in that: include: A methanol tank (100) according to any one of claims 1 to 9.