Inward-turning type high-hydrogen-resistance plastic-metal end socket sealing structure
A metal head and sealing structure technology, applied in the installation device of container structure, container filling method, container discharge method, etc., can solve the problem of easy leakage of plastic-metal interface, and achieve good resistance to deformation and good interface sealing effect. Effect
Pending Publication Date: 2021-08-06
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
[0005] The invention takes the plastic liner of the high-pressure hydrogen storage bottle as an object, and designs an inward-turning high-resistance hydrogen plastic-metal head sealing structure, which solves the problem of easy leakage of the plastic-metal interface at the mouth of the high-pressure hydrogen storage bottle
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[0026] The present invention is an inward-turning high-resistance hydrogen plastic-metal head sealing structure, such as figure 1 As shown, it includes a plastic head 1, a metal BOSS structure 2, a sealing ring 3, a metal BOSS locking structure 4, a sealing ring 5 and a bottle valve seat 6. The plastic head 1 is the main structure, the metal BOSS structure 2 is an insert, the metal BOSS locking structure 4 and the bottle valve seat 6 are assembly parts, and the sealing ring 3 and the sealing ring 5 are sealing parts. The metal BOSS structure 2 is umbrella-shaped, arranged coaxially with the head 1, and its inner ring is embedded in the plastic head 1, and the umbrella-shaped structure is embedded and covered at the bottle mouth of the head; The outer surfaces of the head 1 coincide. Such as figure 1 As shown, the above-mentioned metal BOSS structure bottle mouth is an outwardly extending circular boss, and a bottle valve seat 6 is installed from top to bottom at the metal BO...
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The invention discloses an inward-turning type high-hydrogen-resistance plastic-metal end socket sealing structure. The inward-turning type high-hydrogen-resistance plastic-metal end socket sealing structure comprises a metal BOSS structure, a plastic end socket, a metal BOSS locking structure, a bottle valve seat and a sealing ring; the metal BOSS structure and the plastic end socket are coaxially arranged; the structure at a bottle opening of the plastic end socket is turned inwards; the metal BOSS locking structure is connected to the connecting end face of the BOSS structure and a plastic inner container through threads; the metal BOSS locking structure locks the metal BOSS structure and the plastic end socket and is additionally provided with the sealing ring for sealing; the metal BOSS structure and the bottle valve seat are connected through threads; and the BOSS structure and the bottle valve seat are sealed through the sealing ring. According to the inward-turning type high-hydrogen-resistance plastic-metal end socket sealing structure, the inward-turning type plastic end socket bottle opening design is adopted, and the plastic end socket has good deformation resistance in the rapid inflation and deflation process; and the structures such as a conical surface, a concave BOSS and the sealing ring are designed, the advantage that the internal and external pressure difference of a hydrogen storage tank is large is fully utilized, and thus even if shrinkage of plastic and metal is inconsistent due to the machining process and temperature, the good interface sealing effect can be achieved.
Description
technical field [0001] The invention relates to the field of processing and molding of pressure vessels and polymer materials, in particular to an inward-turning high-resistance hydrogen plastic-metal head sealing structure. [0002] technical background [0003] Hydrogen has become an important part of the new energy industry due to its advantages of high combustion cleanliness and high energy density, among which pressure hydrogen storage technology is an important part of the development of new hydrogen energy. Pressure hydrogen storage technology is most widely used in new energy vehicles and tube bundle hydrogen storage vehicles. At present, pressure hydrogen storage technology is developing towards high-pressure and high-density hydrogen storage. However, hydrogen gas has the characteristics of small molecules and easy leakage. It must have a liner with excellent barrier capacity as a barrier layer to prevent gas leakage. The most advanced hydrogen storage bottle It is...
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IPC IPC(8): F17C13/06F17C13/00
CPCF17C13/002F17C13/06F17C2205/0311Y02E60/32
Inventor 谢鹏程查燕王修磊丁玉梅杨卫民
Owner BEIJING UNIV OF CHEM TECH