在机械加工、汽配制造、五金零部件加工车间，超声波清洗、喷淋清洗工序会持续产生大量清洗废水，废水中混杂切削液、乳化油、金属碎屑、表面活性剂等污染物。这类废水浓度高，可生化性差，普通污水处理工艺处理难度大，如果直接委外处置，危废处理费用居高不下。低温废水回收设备采用真空热泵低温蒸发技术，对清洗废水做浓缩分离，回收洁净再生水回用车间，大幅缩减危废产出量，是制造企业实现废水减量、降本环保的主流装备。

In mechanical processing, automotive parts manufacturing, and hardware parts processing workshops, ultrasonic cleaning and spray cleaning processes continuously generate a large amount of cleaning wastewater, which is mixed with pollutants such as cutting fluid, emulsified oil, metal debris, and surfactants. This type of wastewater has high concentration, poor biodegradability, and is difficult to treat with ordinary sewage treatment processes. If it is directly outsourced for disposal, the cost of hazardous waste treatment will remain high. The low-temperature wastewater recovery equipment adopts vacuum heat pump low-temperature evaporation technology to concentrate and separate cleaning wastewater, recover clean regenerated water for reuse in the workshop, significantly reduce the output of hazardous waste, and is the mainstream equipment for manufacturing enterprises to achieve wastewater reduction, cost reduction and environmental protection.

低温废水回收设备核心依靠真空负压降沸点与热泵热量循环两大技术。真空泵把蒸发腔体抽至高负压环境，让废水在30?42℃低温环境实现沸腾汽化，不需要锅炉提供高温蒸汽。热泵系统完成热量循环，冷媒对废水进行加热，废水蒸发产生的水蒸气进入冷凝器换热液化，得到洁净冷凝水；油污、盐分、有机物、金属杂质留在罐体内形成高浓度浓缩废液。整套物理分离过程温度温和，不容易出现物料高温焦化结垢，降低换热组件堵塞风险。完整流程包含废水预处理、真空低温蒸发、蒸汽冷凝回收、浓缩液自动排出，PLC系统实现全自动运行，支持进料、消泡、液位监控、故障报警，可长时间无人值守运转。

The core of low-temperature wastewater recovery equipment relies on two technologies: vacuum negative pressure boiling point reduction and heat pump heat cycle. The vacuum pump pumps the evaporation chamber to a high negative pressure environment, allowing the wastewater to reach 30 degrees Celsius? Boiling vaporization can be achieved in a low-temperature environment of 42 ℃, without the need for a boiler to provide high-temperature steam. The heat pump system completes the heat cycle, and the refrigerant heats the wastewater. The water vapor generated by the evaporation of the wastewater enters the condenser for heat exchange and liquefaction, obtaining clean condensed water; Oil stains, salt, organic matter, and metal impurities remain in the tank to form high concentration concentrated waste liquid. The entire physical separation process has a mild temperature and is not prone to high-temperature coking and scaling of materials, reducing the risk of blockage in heat exchange components. The complete process includes wastewater pretreatment, vacuum low-temperature evaporation, steam condensation recovery, and automatic discharge of concentrated liquid. The PLC system realizes fully automatic operation, supports feeding, defoaming, liquid level monitoring, fault alarm, and can operate unattended for a long time.

该设备适配多种工业工况，在全自动喷淋清洗线、超声波清洗机配套场景使用非常为普遍。机加工产生的乳化液废水、零部件漂洗废水、五金除油清洗废液都可以处理；电镀、表面处理行业漂洗废水，也能实现浓缩减量。蒸发产出的再生水水质稳定，可以重新回用于工件清洗、设备冷却，实现车间水资源循环；浓缩后的废液体积可以缩减80%?95%，只需要少量容器收集后委外处置，出色大削减危废处置成本，帮助企业满足环保管控要求。

This device is suitable for various industrial working conditions and is most commonly used in scenarios such as fully automatic spray cleaning lines and ultrasonic cleaning machines. Emulsified wastewater, component rinsing wastewater, and hardware degreasing and cleaning waste generated by machining can all be treated; The rinsing wastewater from electroplating and surface treatment industries can also achieve concentration and reduction. The regenerated water produced by evaporation has stable water quality and can be reused for workpiece cleaning and equipment cooling, achieving water resource circulation in the workshop; Can the volume of concentrated waste liquid be reduced by 80%? 95%, only a small amount of containers are needed for collection and outsourcing disposal, greatly reducing the cost of hazardous waste disposal and helping enterprises meet environmental control requirements.

选型低温废水回收设备不能只看设备标称处理吨位，要综合多项实际工况。首先统计车间废水日均产生量，考虑清洗设备峰值排水，处理能力预留15%?20%余量；其次明确进水水质，含浮油、大量金属碎屑的废水，需要配置前置过滤撇油预处理单元，保护主机，防止泵体、管路堵塞。设备接触废水的腔体、管路材质要匹配废液腐蚀性，优先选用耐腐蚀不锈钢材质。如果现场废水泡沫多，要确认设备自带自动消泡控制模块。同时要评估车间供电条件，设备以电力为驱动，无需外接蒸汽热源，适合绝大多数中小型工厂改造项目，可独立放置，占地面积紧凑，便于和清洗生产线对接集成。

The selection of low-temperature wastewater recovery equipment should not only consider the nominal treatment capacity of the equipment, but also take into account multiple actual operating conditions. Firstly, calculate the daily average amount of wastewater generated in the workshop, taking into account the peak discharge of cleaning equipment, and reserve 15% of the treatment capacity? 20% margin; Secondly, it is necessary to clarify the quality of the incoming water. For wastewater containing floating oil and a large amount of metal debris, a pre filtration and oil skimming pretreatment unit should be installed to protect the main engine and prevent blockage of the pump body and pipelines. The material of the chamber and pipeline where the equipment comes into contact with wastewater should match the corrosiveness of the waste liquid, and corrosion-resistant stainless steel material should be preferred. If there is a lot of foam in the on-site wastewater, make sure that the equipment has its own automatic defoaming control module. At the same time, it is necessary to evaluate the power supply conditions of the workshop. The equipment is driven by electricity and does not require an external steam heat source. It is suitable for most small and medium-sized factory renovation projects, can be placed independently, occupies a compact area, and is easy to integrate with the cleaning production line.

想要设备长期稳定运行，日常维护必不可少。日常巡检核心关注真空度、运行温度、液位状态；定期清理前置过滤器，拦截金属碎屑、悬浮物；按时排出浓缩液，不要超液位运行；定期检查真空泵、热泵压缩机运行状态。很多企业设备运行效果变差，大多是忽视预处理环节，杂质直接进入蒸发腔体，造成换热面结垢，降低蒸发效率。操作人员应当严格按照操作规程，不要随意修改温度、压力运行参数。

Daily maintenance is essential for the long-term stable operation of the equipment. Daily inspections focus on vacuum degree, operating temperature, and liquid level status; Regularly clean the pre filter to intercept metal debris and suspended solids; Drain the concentrated solution on time and do not operate beyond the liquid level; Regularly check the operating status of vacuum pumps and heat pump compressors. Many enterprises' equipment performance deteriorates due to neglecting the pre-treatment process, where impurities directly enter the evaporation chamber, causing scaling on the heat exchange surface and reducing evaporation efficiency. Operators should strictly follow the operating procedures and not arbitrarily modify temperature and pressure operating parameters.

对于有大量清洗废水产出的工厂，低温废水回收设备既解决废水处置难题，回收水资源减少自来水消耗，又能降低高额危废处置开支，兼顾经济效益和环保效益，是清洗生产线配套升级的优选方案。

For factories that produce a large amount of cleaning wastewater, low-temperature wastewater recovery equipment not only solves the problem of wastewater disposal, recovers water resources to reduce tap water consumption, but also reduces high hazardous waste disposal expenses, balancing economic and environmental benefits. It is the preferred solution for upgrading the cleaning production line.

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