CAJ | 학술논문

利用自制的“高压静电水处理器”对电厂循环冷却水进行了动态模拟阻垢研究，从理论与实验的角度，分析了高压静电水处理器腔内电场分布。研究表明，离子棒高压静电场为双介质非均匀径向稳恒高压静电场，静电场中 PTFE 介质层构成离子棒绝缘层，水介质层构成循环冷却水与电场进行能量交换的空间；应用拉普拉斯方程对水介质空间电场分布分析表明，循环水空间的电场能量密度在10?32~10?30 J/mol数量级，远未达到水分子团簇氢键破裂的能量级别，因此离子棒提供的电场能量只起到促使水分子团簇向氢键断开的方向变化，而未提供水分子团簇氢键断开的全部能量；高压静电场的阻垢作用关键是使水中成垢离子的结晶形态发生变化，电场能量使热平衡体系中的自由能ΔG增加，导致文石晶核形成的几率增大，文石晶体呈粉末状，易随水流冲走而减少了在换热表面的沉积，从而抑制方解石型水垢生长。
이용자제적“고압정전수처리기”대전엄순배냉각수진행료동태모의조구연구，종이론여실험적각도，분석료고압정전수처리기강내전장분포。연구표명，리자봉고압정전장위쌍개질비균균경향은항고압정전장，정전장중 PTFE 개질층구성리자봉절연층，수개질층구성순배냉각수여전장진행능량교환적공간；응용랍보랍사방정대수개질공간전장분포분석표명，순배수공간적전장능량밀도재10?32~10?30 J/mol수량급，원미체도수분자단족경건파렬적능량급별，인차리자봉제공적전장능량지기도촉사수분자단족향경건단개적방향변화，이미제공수분자단족경건단개적전부능량；고압정전장적조구작용관건시사수중성구리자적결정형태발생변화，전장능량사열평형체계중적자유능ΔG증가，도치문석정핵형성적궤솔증대，문석정체정분말상，역수수류충주이감소료재환열표면적침적，종이억제방해석형수구생장。
The home-made “high-voltage electrostatic water processor” was used to conduct a dynamic simulation study on the scale inhibition of the circulating cooling water in the power plant. The electric field distribution in the chamber of high-voltage electrostatic water processor was analyzed from the theoretical and experimental perspectives. The study showed that the ion-stick high voltage electrostatic field(HVEF) is a dual media non-uniform radical steady HVEF; the PTFE medium layer in the electrostatic field constitutes the ion-stick PTFE insulation layer;the water medium layer constitutes the space of energy exchange between the circulating cooling water and the electric field. Analysis of the electric field distribution of the water medium space using the Laplace equation suggested that the energy density of the electric field of the space is 10?32~10?30 J/mol, which is far less than the energy that can make the hydrogen bonds in the water molecule cluster break. Thus, the electric field energy supplied by the ion-stick can only induce the breaking orientation of the hydrogen bonds in the water molecule cluster, without being able to supply the entire energy to make them break. The key role of HVEF scale inhibition is to change the crystalline form of the scale-forming ions in the water. The electric field energy makes the free energy, ΔG, of the thermal equilibrium system increase, resulting in increased possibilities of aragonite nucleation. Aragonite crystal exists in the form of powder which can be easily washed away, and thus reduces the deposition on the heat-exchange surface. In this way, the growth of the calcite scale is inhibited.