船用反滲透海水淡化裝置能量回收技術(shù)應(yīng)用研究
發(fā)布時間：2018-10-13 08:18
【摘要】：隨著現(xiàn)代船舶行業(yè)不斷的向遠(yuǎn)洋化和大型化的方向發(fā)展,船舶的反滲透海水淡水技術(shù)在近30年間得到了迅速發(fā)展。而反滲透海水淡化技術(shù)的能耗問題一直是制約其發(fā)展的主要因素,能量回收技術(shù)是有效解決該問題的最佳方法。在反滲透海水淡化工藝中加入能量回收裝置,可將反滲透膜組件排出的高壓濃海水中的壓力能傳遞給原料海水以降低產(chǎn)水能耗。本文采用適用于船舶工作環(huán)境的正位移式余壓能量回收裝置,分以下幾個方面進(jìn)行研究:裝置的結(jié)構(gòu)設(shè)計、裝置材料的耐腐蝕性分析和密封設(shè)計以及能量回收裝置性能測試。首先對余壓能量回收裝置進(jìn)行結(jié)構(gòu)分析,將傳統(tǒng)的正位移式余壓能量回收裝置進(jìn)行小型化設(shè)計,提出了一種小體積、低能耗的余壓能量回收原理。該裝置的主要結(jié)構(gòu)包括缸筒、先導(dǎo)閥塊和換向閥塊。缸筒負(fù)責(zé)高壓濃海水的余壓回收工作,而先導(dǎo)閥塊和換向閥塊負(fù)責(zé)裝置的機(jī)械控制工作。然后對裝置的結(jié)構(gòu)進(jìn)行了詳細(xì)設(shè)計,主要包括缸筒、端蓋以及集成閥塊的設(shè)計,保證了該裝置結(jié)構(gòu)上的可行性。最后針對能量回收裝置適用環(huán)境的特殊性,選擇耐腐蝕性能極強(qiáng)的雙相不銹鋼作為裝置的材料;并為能量回收裝置設(shè)計合理的密封系統(tǒng),保證裝置具有良好的密封性。根據(jù)余壓能量回收裝置試驗平臺的工藝流程,分別對高壓泵以及供水泵進(jìn)行選型。然后完成了試驗平臺的搭建和監(jiān)控界面的設(shè)計,并采用流量、壓力傳感器和PLC進(jìn)行數(shù)據(jù)采集。通過對能量回收裝置進(jìn)行性能測試,結(jié)果表明:能量回收裝置能順利完成海水的增壓和泄壓工作,保證了能量回收工作的穩(wěn)定運(yùn)行,且流量及壓力波動較小。同時對能量回收裝置的有效能量轉(zhuǎn)換效率進(jìn)行了實驗驗證,保證了該裝置有效能量轉(zhuǎn)換效率不低于90%的國家標(biāo)準(zhǔn)要求。
[Abstract]:With the development of ocean water and large scale in modern ship industry, reverse osmosis (RO) seawater freshwater technology has been developed rapidly in recent 30 years. The energy consumption of reverse osmosis seawater desalination technology has been the main factor restricting its development. Energy recovery technology is the best way to solve this problem. Adding energy recovery device to reverse osmosis seawater desalination process, the pressure from high-pressure concentrated seawater discharged by reverse osmosis membrane module can be transferred to raw seawater to reduce energy consumption of water production. In this paper, the positive displacement residual pressure energy recovery device suitable for ship working environment is used to study the following aspects: the structure design of the device, the corrosion resistance analysis and sealing design of the equipment material, and the performance test of the energy recovery device. Firstly, the structure of the residual pressure energy recovery device is analyzed, and the traditional positive displacement residual pressure energy recovery device is designed for miniaturization, and a small volume and low energy consumption residual pressure energy recovery principle is proposed. The main structure of the device includes cylinder, pilot valve block and reversing valve block. The cylinder is responsible for the recovery of the residual pressure of high pressure sea water, and the pilot valve block and the reversing valve block are responsible for the mechanical control of the device. Then the structure of the device is designed in detail, including the cylinder, the end cover and the integrated valve block design, which ensures the feasibility of the structure of the device. Finally, according to the particularity of the suitable environment of the energy recovery device, the dual-phase stainless steel with strong corrosion resistance is selected as the material of the device, and a reasonable sealing system is designed for the energy recovery device to ensure the device has good sealing performance. According to the technological process of the test platform of the residual pressure energy recovery device, the high pressure pump and the water supply pump were selected respectively. Then the design of the test platform and the monitoring interface is completed, and the flow, pressure sensor and PLC are used to collect the data. Through the performance test of the energy recovery device, the results show that the energy recovery device can successfully complete the pressurization and pressure relief of seawater, and ensure the steady operation of the energy recovery work, and the flow rate and pressure fluctuation are relatively small. At the same time, the effective energy conversion efficiency of the energy recovery device is verified by experiments, which ensures that the effective energy conversion efficiency of the device is not less than 90% of the national standard.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：P747.5
[Abstract]:With the development of ocean water and large scale in modern ship industry, reverse osmosis (RO) seawater freshwater technology has been developed rapidly in recent 30 years. The energy consumption of reverse osmosis seawater desalination technology has been the main factor restricting its development. Energy recovery technology is the best way to solve this problem. Adding energy recovery device to reverse osmosis seawater desalination process, the pressure from high-pressure concentrated seawater discharged by reverse osmosis membrane module can be transferred to raw seawater to reduce energy consumption of water production. In this paper, the positive displacement residual pressure energy recovery device suitable for ship working environment is used to study the following aspects: the structure design of the device, the corrosion resistance analysis and sealing design of the equipment material, and the performance test of the energy recovery device. Firstly, the structure of the residual pressure energy recovery device is analyzed, and the traditional positive displacement residual pressure energy recovery device is designed for miniaturization, and a small volume and low energy consumption residual pressure energy recovery principle is proposed. The main structure of the device includes cylinder, pilot valve block and reversing valve block. The cylinder is responsible for the recovery of the residual pressure of high pressure sea water, and the pilot valve block and the reversing valve block are responsible for the mechanical control of the device. Then the structure of the device is designed in detail, including the cylinder, the end cover and the integrated valve block design, which ensures the feasibility of the structure of the device. Finally, according to the particularity of the suitable environment of the energy recovery device, the dual-phase stainless steel with strong corrosion resistance is selected as the material of the device, and a reasonable sealing system is designed for the energy recovery device to ensure the device has good sealing performance. According to the technological process of the test platform of the residual pressure energy recovery device, the high pressure pump and the water supply pump were selected respectively. Then the design of the test platform and the monitoring interface is completed, and the flow, pressure sensor and PLC are used to collect the data. Through the performance test of the energy recovery device, the results show that the energy recovery device can successfully complete the pressurization and pressure relief of seawater, and ensure the steady operation of the energy recovery work, and the flow rate and pressure fluctuation are relatively small. At the same time, the effective energy conversion efficiency of the energy recovery device is verified by experiments, which ensures that the effective energy conversion efficiency of the device is not less than 90% of the national standard.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：P747.5
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 薛樹旗;孫鑫;劉永強(qiáng);祝成耀;秦宏展;;余壓能量回收技術(shù)在船用反滲透海水淡化工藝中的應(yīng)用研究[J];船舶工程;2016年01期
2 陳e，
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