Nitrogen making system for ship

A manufacturing system, nitrogen technology, applied in the direction of sustainable manufacturing/processing, climate sustainability, nitrogen purification/separation, etc., can solve the problems of large area occupied by nitrogen generators and high procurement costs, and save equipment investment and energy consumption , the effect of streamlining the structure

Active Publication Date: 2015-12-30
PANASIA GAS TECH WUXI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the nitrogen generator occupies a larger area th

Method used

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  • Nitrogen making system for ship
  • Nitrogen making system for ship
  • Nitrogen making system for ship

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

The invention relates to a nitrogen making system for a ship. The nitrogen making system comprises a compressor, a nitrogen making machine and/or a nitrogen buffer tank as well as a flow pressure regulating device which are sequentially connected through pipelines, wherein the compressor comprises at least one compression unit and is used for providing compressed air; the nitrogen making machine comprises at least two nitrogen making units and is used for making nitrogen; the nitrogen buffer tank is used for storing and buffering the nitrogen; the flow pressure regulating device is used for regulating flow and pressure. Compared with a conventional nitrogen making system, the nitrogen making system is not equipped with an air dryer, an air buffer tank or a nitrogen buffer tank and can output the small-flow and high-pressure nitrogen, and the pressure of the nitrogen is higher than the highest output pressure of an air compressor. With the adoption of the means, the structure of the nitrogen making system in the prior art is simplified, device operation and nitrogen yield cannot be influenced, and device investment and energy are saved.

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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IPC IPC(8): C01B21/04
CPCC01B21/04Y02P20/10
Inventor 陈力杨莺
Owner PANASIA GAS TECH WUXI CO LTD
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