An air-conditioning unit for film-type lng ship containment system

Abstract

The invention discloses an air-conditioning unit used for the enclosure system of a membrane-type LNG ship. According to the idea of ​​modular design, a high-power air-conditioning unit is divided into several modules. Each module has the same structure and adopts a common component configuration. , Design and manufacture according to each module design and manufacture, after arriving at the LNG ship outfitting dock, assemble each module into a high-power air-conditioning unit. The air-conditioning unit includes an air-conditioning box, a control box, and several modules with the same component configuration. Each module with the same component configuration includes a refrigeration compressor, an air-cooled condenser, a thermal expansion valve, an evaporator, a steam heater, and a steam regulating valve. and other parts. The invention reduces the design and manufacturing cost; adopts common parts and components, and the functions of each module can be interoperable and mutually prepared, which improves the reliability of the equipment; and when the air-conditioning unit is in part-load operation, the energy output of the air-conditioning unit can be adjusted conveniently , to achieve energy-saving operation.

Description

technical field [0001] The invention relates to the field of air-conditioning, in particular to an air-conditioning unit of a film-type LNG ship containment system with low design and manufacturing cost, energy-saving operation and high reliability. Background technique [0002] During the process of installing invar steel in the liquid cargo tank of LNG (Liquefied Natural Gas liquefied natural gas, LNG) ship, the air temperature, humidity, sulfur dioxide, chlorine and other harmful gas content in the cabin must be controlled, and the liquid cargo tank enclosure system needs to be designed and guaranteed The air-conditioning system is equipped with air-conditioning units with functions of temperature and humidity adjustment and dust removal and purification. For a membrane-type LNG carrier with a single-chamber capacity of about 30,000 cubic meters, the construction space for the maintenance system is generally more than 20 meters high, and the construction is carried out la...

AI Technical Summary

Problems solved by technology

[0003] First, the main components of the air-conditioning unit are non-standard parts, the quantity is small, and the cost of design and manufacture is high;

[0004] Second, when the air-conditioning unit is operating in a non-design working condition, the energy adjustment is inconvenient and the unit consumes a lot of energy;

[0005] Third, the capacity of the air-conditioning units of the cargo hold construction platform of the LNG ship is relatively large, which is inconvenient for production testing and product transportation

Images