在能源運(yùn)輸領(lǐng)域——LNG(液化天然氣)/LEG(液化乙烯)等液化氣船的運(yùn)營(yíng)中,安全與效率至關(guān)重要。作為船上關(guān)鍵安全系統(tǒng)的組成部分,制氮裝置(Nitrogen Generation System)用于產(chǎn)生惰性氣體,適用于貨艙的惰化和保壓,其穩(wěn)定運(yùn)行對(duì)船舶操作具有重要影響。而為制氮裝置提供氣源的空氣壓縮機(jī),需滿足特殊工況要求。

面對(duì)這一領(lǐng)域的專(zhuān)業(yè)要求,柳泰克(Liutech)基于對(duì)客戶需求的了解和應(yīng)用經(jīng)驗(yàn)的積累,成功完成了多項(xiàng)配套項(xiàng)目:為多艘大型LNG船舶提供了功率范圍在110-200kW的專(zhuān)用噴油螺桿空壓機(jī),性能表現(xiàn)符合設(shè)計(jì)要求。

應(yīng)對(duì)行業(yè)應(yīng)用需求,滿足實(shí)際使用條件

柳泰克工程師團(tuán)隊(duì)與客戶溝通后,明確了船上制氮應(yīng)用的主要需求:

1. 空間限制:船舶艙室空間有限,要求空壓機(jī)結(jié)構(gòu)緊湊,集成度高。

2.運(yùn)行可靠性要求:船舶長(zhǎng)期航行于海上,維護(hù)條件有限,要求空壓機(jī)具備良好的運(yùn)行穩(wěn)定性和耐用性。

3.散熱環(huán)境要求:機(jī)艙內(nèi)環(huán)境溫度較高,通風(fēng)條件有限,要求空壓機(jī)的冷卻系統(tǒng)能夠高效散熱,保持設(shè)備運(yùn)行溫度在允許范圍內(nèi)。

柳泰克的應(yīng)用解決方案

針對(duì)這些需求,柳泰克基于產(chǎn)品平臺(tái),進(jìn)行了針對(duì)性開(kāi)發(fā),尤其在散熱方面采用了更適合船舶工況的水冷設(shè)計(jì):

需求一:空間有限 → 解決方案:緊湊化設(shè)計(jì)與布局優(yōu)化

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• 對(duì)空壓機(jī)整機(jī)布局進(jìn)行規(guī)劃,采用集成設(shè)計(jì),合理安排主機(jī)、電機(jī)、油氣桶、水冷卻器等部件,減小整機(jī)外形尺寸。

  
  

• 優(yōu)化管路設(shè)計(jì),使設(shè)備結(jié)構(gòu)更為緊湊,適應(yīng)船上安裝空間要求。

需求二:可靠性要求 → 解決方案:系統(tǒng)可靠性設(shè)計(jì)

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• 部件選型:選用適用于工況的材質(zhì)和零部件,支持主機(jī)的長(zhǎng)期運(yùn)行。

  
  

• 系統(tǒng)設(shè)計(jì):提升電氣元件的防護(hù)等級(jí),適應(yīng)環(huán)境要求。簡(jiǎn)化系統(tǒng)結(jié)構(gòu),提高可維護(hù)性。

  
  

• 運(yùn)行監(jiān)控:配備控制器,監(jiān)控運(yùn)行參數(shù),提供狀態(tài)提示功能。

需求三:散熱要求 → 解決方案:高效水冷系統(tǒng)設(shè)計(jì)

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• 針對(duì)船舶機(jī)艙散熱條件有限的特點(diǎn),柳泰克對(duì)空壓機(jī)冷卻器進(jìn)行了規(guī)格調(diào)整,增大了散熱面積,采用了水冷式冷卻方案。

  
  

• 通過(guò)高效板式換熱器設(shè)計(jì),利用船上冷卻水循環(huán)系統(tǒng)進(jìn)行冷卻,大幅提升了散熱效率。

  
  

• 水冷系統(tǒng)相比風(fēng)冷方案更適應(yīng)高溫環(huán)境,避免了機(jī)艙高溫空氣對(duì)冷卻效果的影響,確保壓縮空氣和潤(rùn)滑油溫度始終穩(wěn)定在高效工作范圍。

應(yīng)用情況

這批采用水冷設(shè)計(jì)的柳泰克空壓機(jī)組與制氮系統(tǒng)配合使用,運(yùn)行表現(xiàn)符合設(shè)計(jì)要求。設(shè)備運(yùn)行平穩(wěn),散熱效果良好,適應(yīng)了船舶特殊環(huán)境。

客戶反饋指出:"柳泰克團(tuán)隊(duì)展現(xiàn)了專(zhuān)業(yè)能力和合作態(tài)度,理解了船上應(yīng)用的需求,提供了適用的解決方案?？諌簷C(jī)采用的水冷設(shè)計(jì)能夠有效應(yīng)對(duì)船舶機(jī)艙的高溫環(huán)境,運(yùn)行穩(wěn)定,滿足了使用要求。"

該項(xiàng)目的完成,體現(xiàn)了柳泰克在空壓機(jī)制造領(lǐng)域的產(chǎn)品能力,以及根據(jù)用戶實(shí)際需求提供相應(yīng)解決方案的服務(wù)模式。

Professional Solutions for Deep-Sea Operations: Liutech Provides Dedicated Nitrogen Generation Air Compressor Units for LNG Vessels

In the energy transportation sector—particularly in the operation of liquefied gas carriers such as LNG (liquefied natural gas) and LEG (liquefied ethylene gas)—safety and efficiency are of utmost importance. As a critical part of the vessel’s safety system, the Nitrogen Generation System is used to produce inert gas for tank inerting and pressure maintenance. Its stable operation plays a vital role in overall ship operations. The air compressors supplying gas to the nitrogen generation system must meet specific operational requirements.

Faced with these professional requirements, Liutech, based on an understanding of customer needs and accumulated application experience, has successfully completed multiple matching projects: providing specialized oil-injected screw air compressors with power ranges between 110-200kW for several large LNG vessels, achieving performance that meets design requirements.

Meeting Industry Application Demands and Actual Usage Conditions

After thorough communication with the customer, Liutech engineering team identified the main requirements for the onboard nitrogen generation application:

1. Space limitations: The limited space in ship cabins requires a compact and highly integrated air compressor structure.

2. Operational reliability requirements: Long-term maritime operations with limited maintenance conditions required compressors with high operational stability and durability.

3. Cooling environment requirements: The high ambient temperature in the engine room and limited ventilation necessitate an efficient cooling system for the air compressor to maintain operating temperatures within permissible limits.

Liutech Application Solutions

To meet these requirements, Liutech carried out targeted development based on its product platform, adopting a water-cooling design especially suited to maritime conditions:

Need One: Limited Space → Solution: Compact Design and Layout Optimization

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• Planning the overall layout of the air compressor, adopting an integrated design, and arranging components reasonably such as the main machine, motor, gasoil separator, and water cooler to reduce the overall dimensions.

  
  

• Optimizing pipeline design for a more compact structure, meeting the installation space requirements on board.

Need Two: Reliability Requirements → Solution: System Reliability Design

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• Component selection: Choosing materials and parts suitable for the operating conditions to support long-term operation of the main engine.

  
  

• System design: Enhancing the protection level of electrical components to meet environmental requirements, simplifying system structure to improve maintainability.

  
  

• Operation monitoring: Equipped with controllers to monitor operating parameters and provide status indication functions.

Need Three: Cooling Requirements → Solution: Efficient Water Cooling System Design

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• Considering the limited heat dissipation conditions in ship engine rooms, Liutech adjusted the specifications of the air compressor cooler, increased the cooling area, and adopted a water-cooled cooling solution.

  
  

• Using a high-efficiency plate heat exchanger, utilizing the ship's cooling water circulation system for cooling, greatly improving heat dissipation efficiency.

  
  

• Compared to air-cooling solutions, the water-cooling system is better suited to high-temperature environments, avoiding the impact of hot engine room air on cooling performance. This ensures that compressed air and lubricant temperatures remain stable within the optimal operating range.

Application Performance

The Liutech air compressor units with water cooling design, used in conjunction with the nitrogen generation system, showed performance that met design requirements. The equipment ran smoothly, with good cooling effects, adapting to the unique ship environment.

Customer feedback indicated: “The Liutech team demonstrated professional capability and a cooperative attitude, understanding the needs of onboard applications and providing suitable solutions. The water-cooling design of the air compressor effectively addresses the high-temperature environment of the ship's engine room, operating stably and meeting usage requirements.”

The completion of this project highlights Liutech’s expertise in the air compressor manufacturing field, as well as its service model of providing tailored solutions based on actual user requirements.