在工業水處理領域，低溫廢水回收設備憑借其節能優勢，逐漸成為水資源循環利用的重要工具。這類設備通過熱泵技術或低溫蒸發原理，從溫度低於40℃的廢水中提取熱量或水分，實現能源與水的雙重回收。其應用效果不僅取決於技術路線，更與使用條件密切相關。

　　In the field of industrial water treatment, low-temperature wastewater recovery equipment has gradually become an important tool for water resource recycling due to its energy-saving advantages. This type of equipment extracts heat or water from wastewater with a temperature below 40 ℃ through heat pump technology or low-temperature evaporation principle, achieving dual energy and water recovery. Its application effect depends not only on the technical route, but also closely related to the usage conditions.

　　廢水水質是設備選型的首要考量。設備對化學需氧量、懸浮物、油脂等汙染物濃度有明確限製。當廢水中含有強酸、強堿或氧化性物質時，需預處理調整pH值至6-9範圍，防止腐蝕設備主體。對於含油廢水，需配置氣浮或隔油裝置，確保進水含油量低於50mg/L。部分設備采用陶瓷膜過濾技術，可耐受進水懸浮物濃度達200mg/L，但需定期進行化學清洗。

　　The quality of wastewater is the primary consideration in equipment selection. The equipment has clear limits on the concentration of pollutants such as chemical oxygen demand, suspended solids, and oils. When the wastewater contains strong acids, strong alkalis, or oxidizing substances, pre-treatment is required to adjust the pH value to the range of 6-9 to prevent corrosion of the equipment body. For oily wastewater, it is necessary to install air flotation or oil separation devices to ensure that the inlet oil content is below 50mg/L. Some equipment adopts ceramic membrane filtration technology, which can tolerate suspended solids concentration in the influent up to 200mg/L, but requires regular chemical cleaning.

　　水溫特性直接影響處理效率。設備設計工況通常針對15-35℃廢水，當進水溫度低於10℃時，熱泵係統製熱係數顯著下降，需增大壓縮機功率或增設輔助加熱裝置。對於溫度波動超過±5℃的工況，需配置智能調節係統，通過變頻技術動態調整運行參數。當廢水溫度超過40℃時，需增設換熱器進行預冷卻，避免影響設備壽命。

　　The water temperature characteristics directly affect the processing efficiency. The equipment design conditions are usually for wastewater with a temperature of 15-35 ℃. When the inlet water temperature is below 10 ℃, the heating coefficient of the heat pump system significantly decreases, and it is necessary to increase the compressor power or add auxiliary heating devices. For working conditions with temperature fluctuations exceeding ± 5 ℃, an intelligent regulation system needs to be configured to dynamically adjust operating parameters through frequency conversion technology. When the temperature of the wastewater exceeds 40 ℃, a heat exchanger should be added for pre cooling to avoid affecting the service life of the equipment.

　　環境條件是保障穩定運行的基礎。設備間需保持通風良好，環境溫度控製在5-40℃範圍，防止冷凝器散熱不良導致高壓保護。相對濕度應低於80%，避免電氣元件受潮短路。對於安裝在室外的設備，需配置防雨棚與保溫層，防止極端天氣影響。設備基礎需具備減震措施，降低振動對精密部件的影響。

　　Environmental conditions are the foundation for ensuring stable operation. The equipment room should maintain good ventilation and the ambient temperature should be controlled within the range of 5-40 ℃ to prevent poor heat dissipation of the condenser from causing high pressure protection. The relative humidity should be below 80% to avoid electrical components from getting damp and short circuiting. For equipment installed outdoors, rain shelters and insulation layers should be installed to prevent extreme weather conditions from affecting it. The equipment foundation needs to have shock absorption measures to reduce the impact of vibration on precision components.

　　能源供應的穩定性至關重要。設備通常采用380V三相電源，電壓波動範圍需控製在±10%以內。對於配備蒸汽壓縮機的機型，需提供0.4-0.6MPa的飽和蒸汽。當采用天然氣輔助加熱時，燃氣壓力需穩定在2-3kPa，並配置泄漏報警裝置。部分設備集成太陽能輔助係統，可降低15%-30%的電力消耗。

　　The stability of energy supply is crucial. The equipment usually uses a 380V three-phase power supply, and the voltage fluctuation range needs to be controlled within ± 10%. For models equipped with steam compressors, saturated steam at 0.4-0.6MPa needs to be provided. When using natural gas assisted heating, the gas pressure should be stable at 2-3kPa and equipped with a leak alarm device. Some devices are integrated with solar assisted systems, which can reduce power consumption by 15% -30%.

　　維護管理是延長設備壽命的關鍵。每日需檢查壓縮機運行聲音與振動情況，記錄蒸發器與冷凝器進出水溫差。每周需清洗Y型過濾器，防止堵塞。每月需檢測冷媒壓力，當高低壓差超過1.5MPa時，需補充製冷劑。每半年需對換熱管進行除垢處理，采用檸檬酸循環清洗，避免結垢導致換熱效率下降。

　　Maintenance management is the key to extending the lifespan of equipment. Check the sound and vibration of the compressor daily, and record the temperature difference between the inlet and outlet of the evaporator and condenser. Clean the Y-shaped filter weekly to prevent clogging. The refrigerant pressure needs to be checked monthly, and when the high and low pressure difference exceeds 1.5MPa, refrigerant needs to be replenished. Every six months, the heat exchange tubes need to be cleaned with citric acid circulation to avoid scaling and reduce heat exchange efficiency.

　　低溫廢水回收設備的效能發揮，需建立在科學選型與規範運行的基礎上。通過水質全分析確定預處理工藝，結合環境參數優化設備布局，製定能源供應應急預案，建立預防性維護體係，才能實現廢水回收率與設備可靠性的雙重提升。隨著智能控製技術的發展，設備正逐步向自適應運行、預測性維護方向演進，為工業節水提供更優解決方案。

　　The effectiveness of low-temperature wastewater recovery equipment needs to be based on scientific selection and standardized operation. By conducting a comprehensive analysis of water quality to determine the pre-treatment process, optimizing equipment layout based on environmental parameters, developing emergency plans for energy supply, and establishing a preventive maintenance system, the dual improvement of wastewater recovery rate and equipment reliability can be achieved. With the development of intelligent control technology, equipment is gradually evolving towards adaptive operation and predictive maintenance, providing better solutions for industrial water conservation.

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