低壓給水系統(tǒng)設計

摘要：超高壓水射流清洗技術是近年來在國際上發(fā)展起來的一門高科技技術，該技術主要利用高速水射流的動能來剝離表面頑垢，它是以水為介質，通過柴油機組或電機組驅動大流量增壓器，將水加壓至40000PSI（300Mpa）的壓力，再通過呈圓周排列的多個寶石噴嘴噴射而出，噴嘴由油壓或者氣壓驅動旋轉，形成多束、多角度、強度各異的超高壓旋轉水射流，從而對需要清潔的表面、設備內結垢和附著物以及堵塞物進行超高壓清洗工作。低壓給水系統(tǒng)是超高壓水射流清洗設備中的一個重要的部件。直驅泵是產生高壓的主要設備，離心泵是低壓給水系統(tǒng)的主要的部分，低壓給水系統(tǒng)的設計對離心泵的效率以及機器的壽命至關重要。水刀技術的優(yōu)勢促使了高壓技術的提高。
本課題擬設計C300超高壓清洗裝備低壓給水系統(tǒng)，達到在額定工況下可連續(xù)工作的目標，其性能技術指標不低于UH-300高壓泵進水的標準。兩泵組件主要包括兩大類：水泵部件和空氣壓縮機部件，其中水泵部件包括1，水泵頭 2，法蘭接板 3，銅寶塔及接頭 4，水泵槽輪 5，不銹鋼內外絲彎頭 6，水泵基座；空氣壓縮機部件有壓縮機和壓縮機槽輪和L氣泵拉板，兩者通過多楔帶連接，最后與柴油機相連，通過柴油機的動力帶動水泵和空氣壓縮機工作。本方案中，設計的主要目的在于實現(xiàn)離心泵進水的功能的基礎上，實現(xiàn)結構、經濟性等要素的綜合考慮，使發(fā)揮最大經濟和功能效應。

關鍵詞：離心泵；超高壓；低壓給水系統(tǒng)



The Design of low pressure water supply system water jet cleaning equipment.
Abstract: ultra high pressure water jet technology is a technologydeveloped in recent years in the world, the technology is mainly using the kinetic energy of high speed water jet stripping surface stubborn dirt, it is with water as the medium, driven by large flow turbochargerdiesel or turbine, water is pressurized to 40000PSI (300Mpa) the pressure, then through a plurality of nozzles gem circular permutationejected, the nozzle is driven to rotate by a hydraulic or pneumatic,forming a multi beam, multi angle, strength of different ultra high pressure rotating water jet, which need for surface cleaning of equipment, internal fouling and attachment and the blockage of ultra high pressure cleaning. Low pressure water supply system is an important component of ultra high pressure water jet cleaningequipment. Direct drive pump is the main equipment of high voltage,centrifugal pump is the main part of the low pressure water supply system, life is very important for design of low voltage supply systemon the efficiency of the centrifugal pump and the machine. Water jettechnique has the advantage of high technology to improve.
This research is to design C300 ultra high pressure cleaningequipment of low pressure water supply system, to achieve the goalof continuous work in rated condition, its performance is not less thanUH-300 high-pressure pump water standards. The two pump subassembly mainly include two categories: water pump parts and air compressor parts, which includes 1 water pump parts, pump head 2,flange connecting plate 3, copper pagoda and the joint 4, pumpwheel 5, stainless steel inner thread elbow 6, the water pump base;air compressor parts Compressor and compressor wheel and L pumpand pull plate, and they are connected through the multi wedge belt,finally with the diesel engine is connected, water pump and air compressor driven by the power of the diesel engine work. In the scheme, the main purpose of the design is based on the features of the centrifugal pump inlet, considering the realization structure,economic and other factors, so that to maximize the economic and functional effects.
Keywords: centrifugal pump; high pressure; low pressure water supply system



目 錄

第1章 緒論 5
1.1引言 5
1.2本課題涉及的軟件 5
1.2.1 CAD技術的應用 5
1.2.2 solidworks和PRO/E的應用 6
1.3研究的內容和意義 6
1.3.1課題的來源 6
1.3.2研究內容 7
1.3.3研究的意義 7
第2章 總體方案的設計 8
2.1 原理設計 8
2.1.1設計思想 8
2.1.2 工作流程 8
2.2.1機械傳動方案的設計 9
2.2方案設計 9
2.2.2機械傳動方案的比較與選擇 10
第3章 詳細方案設計 11
3.1. 離心泵的機構設計 13
3.2.離心泵的基本原理 13
3.3 離心泵的工作原理 13
3.4密封方案選擇 13
第4章 結論與展望 14
4.1 結論 14
4.2 展望 15
致 謝 15
參考文獻 17