Composite aircraft wastewater tank combining autoclave and wet winding

By combining autoclave and wet winding composite material design, the problems of poor corrosion resistance and heavy weight of metal aircraft wastewater tanks are solved, and a lightweight and corrosion-resistant composite material aircraft wastewater tank with good sealing and electrical insulation is manufactured.

CN223442903UActive Publication Date: 2025-10-17WUHAN HANGDA AERO SCI & TECH DEV
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Patent Information

Application Number
CN202421650059.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-10-17
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Existing metal aircraft wastewater tanks have poor corrosion resistance and are heavy, making it difficult to meet the economic requirements of civil aviation.

Method used

The design employs a composite material system combining autoclave and wet winding, using carbon fiber prepreg and epoxy resin. The inner liner is bonded together and carbon fiber yarn is wound around the outer surface to form a corrosion-resistant winding layer and reinforcing ring.

Benefits of technology

A lightweight and corrosion-resistant aircraft wastewater tank has been developed, with excellent sealing and electrical insulation properties, avoiding the corrosion problems of metal tanks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a composite material aircraft waste water tank combining an autoclave and wet winding, and relates to a composite material aircraft waste water tank. The inner container comprises an inner container body and a winding layer, the inner container body comprises a left inner container body and a right inner container body, and the left inner container body and the right inner container body are connected into a whole through glue joint. The water tank is easy to manufacture, carbon fibers have excellent corrosion resistance, and the problem that a traditional metal water tank is rusted can be solved; the left inner container and the right inner container are connected into a whole through glue joint, and good sealing performance, electric insulation performance and corrosion resistance are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a composite material airplane waste water tank more specifically, it is a kind of composite material airplane waste water tank combined with hot press tank and wet winding. BACKGROUND

[0002] In civil aviation airplane water waste water system, waste water tank is essential component, waste water tank is used to store and collect waste water, can satisfy the physiological needs of passenger on board, so that passenger can pass through a comfortable journey life.

[0003] At present, few companies can provide waste water tank for large passenger plane in China, and key technology is not advanced, and common metal waste water tank is poor in corrosion resistance and heavy, not in line with the economy of civil aviation.

[0004] Therefore, it is necessary to develop a waste water tank suitable for civil aviation, which is light in weight and corrosion resistant. INVENTION CONTENTS

[0005] The utility model aims at overcoming the insufficient of above-mentioned background art, and provides a kind of composite material airplane waste water tank combined with hot press tank and wet winding.

[0006] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a kind of composite material airplane waste water tank combined with hot press tank and wet winding, characterized by: including inner container and the wrapping layer located at the outer surface of inner container, the inner container includes left inner container and right inner container, the left inner container and right inner container are connected by cementing to be integrated.

[0007] In the above technical scheme, the wrapping layer is provided with two reinforcing rings, and one of the reinforcing rings is located at the cementing position of the left inner container and the right inner container.

[0008] In the above technical scheme, the left inner container and the right inner container are both carbon fiber prepreg cloth pasting, and are formed by hot press curing.

[0009] In the above technical scheme, the wrapping layer is formed by longitudinal and circumferential winding of carbon fiber yarn and epoxy resin mixed by wet method on the outer surface of the inner container.

[0010] In the above technical scheme, the reinforcing ring is formed by longitudinal and circumferential winding of carbon fiber yarn and epoxy resin mixed by wet method on the wrapping layer.

[0011] In the above technical scheme, the bottom of the left inner container and the right inner container is polished by sandpaper and then cemented by epoxy resin.

[0012] In the above technical scheme, the length of the waste water tank is 1320mm, and the diameter is 540mm.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1) The present application is simple to manufacture and the carbon fiber has excellent corrosion resistance, which can avoid the problem of rusting of traditional metal water tanks; the left inner liner and the right inner liner are connected by adhesive connection to form an integrated body, which has good sealing performance, electrical insulation and corrosion resistance.

[0015] 2) The main material of the present application is carbon fiber cloth prepreg, carbon fiber yarn and epoxy resin, which has a very small density compared with metal, which can effectively reduce the weight. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application is a structural schematic diagram.

[0017] Figure 2 The present application is a structural schematic diagram of the inner liner.

[0018] Figure 3 The present application is a forming diagram of the left inner liner.

[0019] Figure 4 The present application is a forming diagram of the right inner liner.

[0020] Among them, 1 is the inner liner, 11 is the left inner liner, 12 is the right inner liner, 2 is the winding layer, 3 is the reinforcing ring, and 4 is the waste water tank mold. DETAILED DESCRIPTION

[0021] The present application will be described in detail below with reference to the accompanying drawings, but they do not constitute a limitation on the present application, but only serve as an example. At the same time, through the description, the advantages of the present application will become more clear and easy to understand.

[0022] As shown in the drawings, the present application is a composite material airplane waste water tank combined with hot press tank and wet winding, characterized in that it comprises an inner liner 1 and a winding layer 2 located on the outer surface of the inner liner 1, the inner liner 1 comprises a left inner liner 11 and a right inner liner 12, and the left inner liner 11 and the right inner liner 12 are connected by adhesive connection to form an integrated body.

[0023] The winding layer 2 is provided with two reinforcing rings 3, one of which is located at the adhesive joint of the left inner liner 11 and the right inner liner 12.

[0024] The left inner liner 11 and the right inner liner 12 are both carbon fiber prepreg cloth, which is pasted and formed by hot press curing.

[0025] The winding layer 2 is formed by longitudinal and circumferential winding of carbon fiber yarn and epoxy resin mixed by wet method on the outer surface of the inner liner 1.

[0026] The reinforcing ring 3 is formed by longitudinal and circumferential winding of carbon fiber yarn and epoxy resin mixed by wet method on the winding layer 2.

[0027] The bottom of the left inner tank 11 and the right inner tank 12 is polished with sandpaper and then glued with epoxy resin.

[0028] The wastewater tank has a length of 1320mm and a diameter of 540mm.

[0029] In actual use, the left inner tank 11 and the right inner tank 12 are laid by using the wastewater tank mold 4, and are demolded after being cured by a hot press tank; the bottom of the demolded left inner tank 11 and the right inner tank 12 is polished with sandpaper and then glued with epoxy resin; the inner tank after gluing is wound in the longitudinal and circumferential directions by using carbon fiber yarn soaked in resin to form a winding layer 2; the winding layer 2 is wound in the circumferential direction by using carbon fiber yarn soaked in resin to form a reinforcing ring 5.

[0030] The wastewater tank has a length of about 1320mm and a diameter of about 540mm, and other sizes can also be selected according to actual conditions, and the mold size can be modified.

[0031] Other parts not described belong to the prior art.

Claims

1. A composite aircraft wastewater tank combining autoclave and wet winding, characterized by: The invention comprises an inner liner (1) and a winding layer (2) located on the outer surface of the inner liner (1), wherein the inner liner (1) comprises a left inner liner (11) and a right inner liner (12), and the winding layer (2) is provided with two reinforcing rings (3) at intervals, wherein one of the reinforcing rings (3) is located at the bonding position between the left inner liner (11) and the right inner liner (12); The left inner liner (11) and the right inner liner (12) are both paved with carbon fiber prepreg cloth and are cured and formed in an autoclave; The winding layer (2) is formed by mixing carbon fiber yarn and epoxy resin in a wet process and then winding them longitudinally and circumferentially on the outer surface of the inner liner (1); The reinforcing ring (3) is formed by winding carbon fiber yarn and epoxy resin mixed in a wet process on the winding layer (2) in the longitudinal and circumferential directions; The bottoms of the left inner liner (11) and the right inner liner (12) are polished with sandpaper and then glued with epoxy resin.

2. The composite aircraft wastewater tank combining autoclave and wet winding according to claim 1, characterized in that: The wastewater tank is 1320mm long and 540mm in diameter.