冷凝单元

　　Condensing Unit

　　针对中石化、中石油、中海油、延长石油和民营石化等化工企业，以及码头、成品油储运销、包装印刷和喷涂等领域排放的VOCs气体采用冷凝式回收，而开发的冷凝制冷单元，冷凝制冷单元制作成撬装式，方便运输和安装或与其它回收方式组合使用，保证VOCs综合治理回收和达标排放。冷凝式油气回收机

　　For chemical enterprises such as Sinopec, PetroChina, CNOOC, Yanchang Petroleum, and private petrochemical companies, as well as in the fields of terminals, finished oil storage and transportation, packaging, printing, and spraying, condensation recovery is adopted for VOCs gas emissions. The developed condensation refrigeration unit is made into a modular design for easy transportation and installation or combined with other recovery methods to ensure comprehensive VOCs treatment, recovery, and standard emissions. Condensing oil and gas recovery machine

　　一、适用范围

　　1、 Scope of application

　　汽油、航空煤油等成品油挥发气体回收。

　　Recovery of volatile gases from finished oils such as gasoline and aviation kerosene.

　　油田井口气、天然气提纯等。

　　Oilfield wellhead gas, natural gas purification, etc.

　　易挥发有机气体的回收。

　　Recovery of volatile organic gases.

　　二、油气回收装置技术参数

　　2、 Technical parameters of oil and gas recovery device

　　油气处理能力:50~3000Nm3/h。

　　Oil and gas processing capacity: 50~3000Nm3/h.

　　防爆等级

　　Explosion-proof rating

　　油气处理温度:-25~-110C(可根据用户实际需求进行调整)。3、 "纯冷凝"法油气回收装置流程具体描述如下

　　Oil and gas processing temperature: -25~-110C (can be adjusted according to actual user needs). 3. The specific description of the process of the "pure condensation" method oil and gas recovery device is as follows

　　将油气(或其它挥发气体)回收管和回收机组的进气管口相连;:2挥发气体产生时(来自压力信号)，系统自动启动

　　Connect the oil and gas (or other volatile gas) recovery pipe to the inlet pipe of the recovery unit; When volatile gas is generated (from pressure signal), the system automatically starts

　　通过调速器调节风泵运行能力，实时跟踪实际气体流速

　　Adjust the operating capacity of the air pump through a speed regulator to track the actual gas flow rate in real time

　　气体进入制冷系统进行逐级冷却分凝，气体浓度逐步降低

　　The gas enters the refrigeration system for step-by-step cooling and condensation, and the gas concentration gradually decreases

　　经过处理后的达标气体排向大气

　　The processed standard gas is discharged into the atmosphere

　　回收的液体利用输送泵自动打入用户指定储罐中。

　　The recycled liquid is automatically pumped into the user specified storage tank using a transfer pump.

　　三、纯冷凝法油气回收装置工作原理

　　3、 Working principle of pure condensation method oil and gas recovery device

　　纯冷凝"法油气回收工艺是利用制冷技术，先将油气逐级从常温冷却到-25~-110度左右(针对不同挥发气体可设定不同的冷凝温度)，使油气逐级液化回收。整机系统通过以上过程不断循环，从而达到油气连续冷却分凝回收，同时确保挥发油气达标排放。

　　The "pure condensation" oil and gas recovery process utilizes refrigeration technology to first cool the oil and gas from room temperature to around -25~-110 degrees Celsius (different condensation temperatures can be set for different volatile gases), allowing the oil and gas to liquefy and recover step by step. The entire system continuously circulates through the above process to achieve continuous cooling and condensation recovery of oil and gas, while ensuring that volatile oil and gas meet emission standards.

　　制冷原理:利用多机复查制冷技术,为油气系统提供多梯度连续冷场。制冷系统工作时由压缩机排出的高温高压制冷剂气体进入冷凝器被冷凝成高压过冷液体，经膨胀阀节流降压变成低温低压的汽液两相混和物进入蒸发器，制冷剂在其内蒸发并吸收通过蒸发器的油气的热量，使流经蒸发器的油气得以降温，利用物质在不同温度下的蒸气压差异，通过降温使油气组分达到过过饱和状态冷凝成液态直接回收，冷凝后的低浓度气体进入吸附系统吸附处理。同时制冷剂充分汽化后再被压缩机吸入压缩室进入下一轮循环。整机系统通过以上过程不断循环，从而达到油气连续降温回收的目的。油气分凝原理:不同沸点的制冷剂直接蒸发吸收油气热量，使油气中多种组分温度分梯度降至凝点以下，通过油气换热分离器的有效分离实现油气分凝回收。

　　Refrigeration principle: Utilizing multi machine re examination refrigeration technology to provide a multi gradient continuous cooling field for the oil and gas system. The high-temperature and high-pressure refrigerant gas discharged by the compressor during the operation of the refrigeration system enters the condenser and is condensed into a high-pressure supercooled liquid. It is then throttled and depressurized by the expansion valve to become a low-temperature and low-pressure mixture of vapor and liquid, which enters the evaporator. The refrigerant evaporates inside and absorbs the heat of the oil and gas passing through the evaporator, cooling the oil and gas flowing through the evaporator. By utilizing the difference in vapor pressure of the substance at different temperatures, the oil and gas components reach a supersaturated state and are condensed into liquid for direct recovery. The condensed low concentration gas enters the adsorption system for adsorption treatment. At the same time, the refrigerant is fully vaporized and then sucked into the compression chamber by the compressor to enter the next cycle. The entire system continuously cycles through the above process to achieve the goal of continuous cooling and recovery of oil and gas. Principle of oil and gas separation and condensation: Refrigerants with different boiling points directly evaporate and absorb the heat of oil and gas, causing the temperature gradient of various components in the oil and gas to drop below the condensation point. Through effective separation by an oil and gas heat exchanger separator, oil and gas separation and recovery are achieved.

　　四、技术优势

　　4、 Technical advantages

　　技术先进:公司拥有丰富的低温制冷产品的研发经验,可以进行最精确的设计选型,确保最合适有效的配置;效果直观:可立刻回收得到液体状态油品，可直接派用，同时通过计量表实时显示液态油品回收量;操作简单:易于操作、维护。PLC可编程控制，全部自动化运行

　　Advanced technology: The company has rich experience in the research and development of low-temperature refrigeration products, and can conduct the most accurate design and selection to ensure the most suitable and effective configuration; Intuitive effect: It can immediately recover liquid state oil products, which can be directly dispatched, and the real-time recovery amount of liquid oil products can be displayed through a measuring meter; Easy to operate: easy to operate and maintain. PLC programmable control, fully automated operation

　　安全性好:系统设有多重保护，并做到整机防爆;处理量弹性大:可实现0-100%范围内操作

　　Good security: The system is equipped with multiple protections and achieves complete explosion-proof; High flexibility in processing capacity: capable of operating within the range of 0-100%

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