Marine Nitrogen Manufacturing System

A manufacturing system and nitrogen technology, applied in sustainable manufacturing/processing, climate sustainability, nitrogen purification/separation, etc., can solve the problems of high procurement cost and large footprint of nitrogen generators, saving equipment investment and energy. Consumption, the effect of simplified structure

Active Publication Date: 2017-02-01
PANASIA GAS TECH WUXI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nitrogen generator occupies a larger area than the inert gas equipment, and the purchase cost is high

Method used

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  • Marine Nitrogen Manufacturing System
  • Marine Nitrogen Manufacturing System
  • Marine Nitrogen Manufacturing System

Examples

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Effect test

example 1

[0053] Example 1: 55,000 tons oil tanker (55KCT) 4,250Nm 3 / h Nitrogen generator installation project, such as figure 2 shown

[0054] The lessor of a 55,000-ton oil tanker needs to obtain a certificate of airworthiness in the North American Emission Control Area. The inert gas system in the original design was a traditional combustion type and was not allowed to operate in North America. The inert gas system, which is necessary for unloading, cannot operate, which means that chemical tankers are not allowed to unload at North American ports. Therefore, a nitrogen generating device needs to be installed. However, the design of the oil and chemical ship did not consider the engine room where the nitrogen generator is placed, nor did it reserve the electricity and cooling water required by the nitrogen generator. Two container-type diesel-driven air compressors can be arranged by adding a platform on the rear deck, and nitrogen generators can be arranged on the side deck an...

example 2

[0055] Example 2: 85,000 square meters of very large ethane carrier (VLEC) nitrogen generator, such as figure 2 shown

[0056] The nitrogen configuration has two sets of nitrogen 1,500Nm 3 / h Nitrogen system with a purity of over 99.8%, one for use and one for backup. It is extremely difficult to arrange in the engine room and leave enough space for equipment maintenance. The nitrogen generating device arranged in the engine room has a height limit. Therefore, it is necessary to reduce the size and height of the equipment. Using this patented technology can remove the cold dryer, air buffer tank, and nitrogen buffer tank to greatly reduce the equipment's footprint. With the combination of multiple nitrogen generating units, the height of a single nitrogen generating unit can be controlled within the allowable range, and at the same time, the investment cost of the nitrogen manufacturing system is reduced as a whole.

[0057] Example 3: 1,500Nm for a 12,500-ton stainless s...

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Abstract

Provided is a nitrogen generating system for ships. The nitrogen generating system consists of the following apparatuses sequentially connected by means of pipelines: a compressor (10), comprising at least one compressing unit (101) used for providing compressed air; a filtering means (70), comprising at least one filtering unit used for filtering the compressed air; a nitrogen generator (20), comprising at least two nitrogen generating units (201) used for generating nitrogen; an optional nitrogen buffer (40); and a flow and pressure regulating means (30) used for regulating flow and pressure. The system does not have a refrigeration dryer and an air buffer tank, and therefore, the system is simple in structure and the investment and energy consumption of apparatuses are reduced; meanwhile, the system can output nitrogen having low flow and high pressure.

Description

technical field [0001] The invention relates to the technical field of nitrogen production, in particular to a marine nitrogen production system. Background technique [0002] According to the International Convention for the Safety of Life at Sea (SOLAS Convention) currently in force adopted by the International Maritime Organization (IMO), the flash point of the cargo with a deadweight of more than 20,000 tons and above shall not exceed 60°C, and its Reid vapor pressure is lower than that of the atmosphere. Tankers carrying crude oil and refined oil under pressure or other liquid cargoes presenting a similar fire hazard, the protection of the cargo tanks shall be achieved by a fixed inert gas system complying with the requirements of the Fire Safety Systems Code. [0003] The inert gas generator is the core component of the inert gas system. According to the different principles of inert gas generation, it can be divided into three types: combustion type, hollow fiber memb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/04
CPCC01B21/04Y02P20/10
Inventor 陈力杨莺
Owner PANASIA GAS TECH WUXI CO LTD
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