Engine natural gas supply double-wall corrugated pipe

A technology of double-wall bellows and natural gas, which is applied to combustion engines, engine components, machines/engines, etc., and can solve problems such as poor sealing and easy loosening of welds

Inactive Publication Date: 2021-09-14
淄柴机器有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, bellows are used in the gas supply system of marine dual-fuel engines and gas engines, but the bellows are designed with a thin-walled structure. During the welding process with the flanges at both ends and during the use of the engine, the welds are easy to loosen, while the flanges at both ends The way of sealing depends on the sealing gasket is easy to be poorly sealed

Method used

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  • Engine natural gas supply double-wall corrugated pipe
  • Engine natural gas supply double-wall corrugated pipe
  • Engine natural gas supply double-wall corrugated pipe

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Embodiment 1

[0031] This application relates to a double-wall bellows for engine natural gas supply. As a specific implementation of the double-wall bellows, this example includes the specific structure of the double-wall bellows, the corresponding materials used and the corresponding national standards. The double-wall bellows include inner bellows 4 and the outer bellows 5 on the outside of the inner bellows 4, the outer bellows 5 wraps the inner bellows 4, the length of the inner bellows 4 is greater than the length of the outer bellows 5, and the inner bellows 4, the outer bellows 5 A cavity is formed between them, and the cavity is used as a ventilation cavity. The inner bellows 4 is a steel braided tube made of 304 stainless steel. As an embodiment, the diameter of the inner bellows 4 is DN25, and the outer bellows 5 is 3.4 stainless steel. The steel braided pipe is made of material, and the diameter of the outer bellows 5 is DN50. The steel braided pipe and bellows are made according...

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Abstract

The invention belongs to the technical field of engine manufacturing, and particularly relates to an engine natural gas supply double-wall corrugated pipe. The engine natural gas supply double-wall corrugated pipe comprises an inner corrugated pipe body and an outer corrugated pipe body arranged on the outer side of the inner corrugated pipe body and wrapping the inner corrugated pipe body, a flange is arranged at the end of the inner corrugated pipe body and the end of the outer corrugated pipe body, a first sleeve pipe is arranged on the inner corrugated pipe body, the other end of the first sleeve pipe is fixed to the flange, a second sleeve pipe is arranged on the outer corrugated pipe body, the other end of the second sleeve pipe is fixed to the flange, and multiple ventilation holes are formed in the flange. One ends of the sleeve pipes are connected with the flange, the other ends of the sleeve pipes are connected with the corrugated pipe, in this way, effective welding can be achieved, and the problems of vibration and loosening of a welding seam can be solved; and in addition, the multiple holes are formed in the flange, the concentration of natural gas which may leaks in a ventilation pipe is reduced through forced ventilation, centralized fuel gas monitoring is carried out, and safety of a fuel gas supply system is improved.

Description

technical field [0001] The application belongs to the technical field of engine manufacturing, and in particular relates to a double-wall bellows for engine natural gas supply. Background technique [0002] The statements in this section merely provide background technical information relevant to this application and do not necessarily constitute prior art. [0003] At present, bellows are used in the gas supply system of marine dual-fuel engines and gas engines, but the bellows are designed with a thin-walled structure. During the welding process with the flanges at both ends and during the use of the engine, the welds are easy to loosen, while the flanges at both ends The way of sealing relying on the sealing gasket is easy to be poorly sealed. Contents of the invention [0004] In order to solve the above problems, the present application provides a double-wall bellows for engine natural gas supply. [0005] The purpose of this application is to provide a double-wall ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02
CPCF02M21/0218F02M21/0245Y02T10/30
Inventor 黄猛辛强之王超刘艳王延瑞张洪祥贾宝富
Owner 淄柴机器有限公司
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