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High-speed breather valve for oil tanker

A breathable valve, high-speed technology, used in safety valves, balance valves, valve devices, etc., can solve problems such as easy valve opening and gas loss

Inactive Publication Date: 2010-09-29
盐城中油船舶海洋工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the opening pressure of the valve can only be a range, not an absolute value. When the ship encounters wind, waves or turbulence during navigation, the valve is easy to open, resulting in frequent release of gas and causing losses

Method used

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  • High-speed breather valve for oil tanker
  • High-speed breather valve for oil tanker

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Embodiment Construction

[0010] Such as figure 1 The shown high-speed venting valve for oil tankers mainly includes a pressure valve, a vacuum valve 15, and a deflector 1. The vacuum valve 15 is connected to the side of the three-way lower valve body 12 of the pressure valve. The pressure valve is composed of a three-stage series connection of a guide body 3, an upper valve body 7, and a three-way lower valve body 12. A valve stem 2 is placed in the upper valve body 7 and the cavity of the guide body 3, and its top protrudes from the guide body 3 and is fixedly connected to the guide device 1. The valve stem 2 is equipped with a magnetic adjustment rod 4, and the cavity of the guide body 3 is equipped with There is a permanent magnet ring 5 set on the valve stem 2 and corresponding to the magnetic adjustment rod 4. The permanent magnet ring 5 is fixed by the upper fixed wing 6 fixed in the cavity of the guide body 3. The lower part of the valve stem 2 is connected to the weight 8 and the damping Shee...

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Abstract

The invention relates to a liquid cargo tank pressure / vacuum valve, in particular to a breather valve of a liquid cargo tank used on a floating production storage and offloading (FPSO) system of an ultra large oil tanker. The high-speed breather valve for the oil tanker mainly comprises a pressure valve, a vacuum valve and a fluid director, wherein the pressure valve is formed by connecting a flow guiding body, an upper valve body and a three-way lower valve body in three stages in series; the flow guiding body is fixedly connected to the upper part of the upper valve body; the vacuum valve is fixedly connected with the side face port of the three-way lower valve body; a valve rod is arranged in the upper valve body and a flow guiding body cavity; the top of the valve rod is extended out of the flow guiding body and is fixedly connected with the fluid director; a magnetism adjusting rod is arranged in the valve rod; a permanent-magnetic ring which is sleeved on the valve rod and corresponds to the magnetism adjusting rod is arranged in the flow guiding body cavity; the lower part of the valve rod is connected with a weight; and the valve rod below the fluid director is fixedly connected with a damping fin. Oil gas can be smoothly exhausted by stably opening the valve and the impact force of the fluid director can be reduced when the valve is closed, so hammering phenomenon is eliminated and the safety of life and property is guaranteed.

Description

technical field [0001] The present invention relates to a liquid cargo tank pressure / vacuum valve, specifically used for liquid cargo tanks and petroleum products on petroleum, chemical, liquefied petroleum gas, liquefied natural gas transport ships and super large oil tanker · FPSO floating production oil storage systems , natural gas, liquefied petroleum gas storage tanks and high-speed vent valves for chemical equipment. Background technique [0002] Marine high-speed vent valve is special equipment for fire safety of oil tankers and chemical tankers. Pressure and vacuum, as well as the pressure and vacuum generated in the tank during loading, unloading and ballasting, and can effectively prevent flames from entering the tank. At present, most of the liquid cargo tanks in my country are installed with a common breather valve (also known as a breather valve), including pressure and vacuum valves. The pressure valve chamber is equipped with a magnetic assist opening device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/19
Inventor 沈忙宝曹鸿宗培林
Owner 盐城中油船舶海洋工程科技有限公司
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