不费电，不烧汽No power, no steam — just air
空温式气化器：靠翅片管与空气换热把液态气化，没有电和蒸汽也能常年出气，运行成本只有维护。Ambient vaporiser: finned tubes draw heat from air, so gas flows without power or steam.
产品概述Product overview
空温式气化器的原理一句话讲完：翅片管把空气的热量传给管内低温液体，液体吸热气化。八翅对称的星型翅片管用 LF21 防锈铝合金，液气导流管用 T2M 紫铜管，底座与支架同为铝合金角型材——选材逻辑是导热好、耐腐蚀、在 −20~50℃ 户外长期不风化。Star-fin tubes (LF21 aluminium) take heat from air; liquid-gas ducts are T2M copper; frames are aluminium angle.
同一台设备换介质，气化量差别很大：汽化潜热液氧约 213 kJ/kg、液氮约 199 kJ/kg、LNG 约 510 kJ/kg，LNG 需要约 2.4 倍的热量，同规格下气化量只有液氧的四成左右。再叠加密度（液氧 1140、液氮 808、LNG 450 kg/m³）与沸点差异，选型时必须按介质分别折算，不能拿液氮的规格去气化 LNG。经验上气化 LNG 的规格要比气化液氮大 2–3 倍。Latent heat differs sharply (O₂ 213, N₂ 199, LNG 510 kJ/kg), so LNG needs a unit 2–3 times larger than for nitrogen.
环境温度是第二个变量：夏季 35℃ 时气化量可达额定的 120%，冬季 −20℃ 时只有 60% 左右。北方项目要么加大规格，要么与水浴式串接补热。Capacity swings with ambient: about 120% at 35 °C, 60% at −20 °C.
工作原理：空气就是热源Working principle: the air is the heat source
空温式气化器的本体是一组带翅片的铝管（或铝翅片管束），低温液体从下部进入、气化后从上部出来。翅片把周围空气的热量一点点传进管内，液体沿管长方向逐段吸热，先过热、再气化、最后升到接近环境温度。整个过程没有火、没有电、没有水泵，唯一的“动力”是空气与管壁之间那点温差。An ambient vaporiser is a bank of finned aluminium tubes. Cryogenic liquid enters at the bottom, vapour leaves at the top, and the fins pull heat from the surrounding air. Along the tube length the liquid first subcools, then boils, then approaches ambient temperature. There is no flame, no electric heater and no pump — only the temperature difference between air and tube wall.
这决定了它的两个基本特性：一是出力随环境温度和湿度变化，夏天裕量足、冬天打折；二是换热面上会结霜，霜层厚到把翅片间隙堵住，出力就断崖式下降。这两点不是故障，是运行规律，设计和使用都要按这个规律来。Two consequences follow: duty tracks ambient temperature and humidity, so summer has margin and winter does not; and frost builds on the fins. Once frost bridges the gaps the duty falls off a cliff. Neither is a fault — both are the operating law of the equipment.
多台并联是常规做法：按最冷天需求配置台数，运行时按流量增减投用台数；某一台化霜或检修时，其余几台承担负荷。串联则用于单台出口温度不够低的场合，但会增加阻力，需要核算。Parallel banks are the normal arrangement: the number of units is set by the coldest-day duty, and units are cut in and out with flow. One unit de-icing or under service is carried by the rest. Series arrangement is used only where one unit cannot reach the required outlet temperature, and it adds pressure loss.
结构组成What is on the skid
核心优势Why this design
- 零耗电免维护：无风机、无电加热，运行成本只有折旧。No power, no maintenance.
- 材质耐候：LF21 + 紫铜，沿海与化工环境可用。Corrosion-resistant materials.
- 规格连续：50–400 Nm³/h 覆盖，1.6 与 15 MPa 两档。50–400 Nm³/h in two pressure classes.
- 可并串组合：多台并联扩容，或与 water bath 串接补热。Parallel arrays or series trim heat.
四件做到位，设备才站得稳Four things done right
翅片管束按气化量与当地冬季工况核算，低温段材料按 -196℃ 选。
翅片、撬架、管路与调压计量段厂内组对试压，现场只接进出口与电源。
超压切断与放散、出口温度低限报警、自动运行，异常先切后报。
每台带检验试验状态标识、检验记录与检验报告，跟设备一起交到现场。
产品实拍Product photos
空温式气化器 · 翅片管束Ambient-air vaporiser — finned tube bank 点击图片放大查看。 Click to enlarge.
按规格挑，点进去看现场实拍Pick a size, see the site photos
同一个型号，照片比文字更能说明做工：撬体骨架、管路走向、阀组排布、接地点和保温层都在里面。选一个规格，进去看它在车间和现场的实拍。Skid frame, piping runs, valve layout and insulation, shown as built.
技术参数Technical data
| 参数 | 空温式气化器 |
|---|---|
| 工作介质 | LO₂、LN₂、LAr、LCO₂、LNG、LPG、LC₂H₄ 等低温液体 |
| 工作压力 | 1.6 / 2.5 / 4.0 / 15 / 20 / 30 MPa |
| 单台汽化量 | 50 ～ 12000 Nm³/h（更大汽化量采用组合式） |
| 换热管材质 | 6063-T5、3A21；高压气化器内壁复合 304 / 316 管 |
| 翅片管规格 | φ120 / φ160 / φ200 专用大直径翅片管 |
| 设计条件 | 环境温度 -20 ℃、相对湿度 70%、连续工作 24 小时的汽化量 |
| 氧洁净度 | 按 CGA 4.1 及 ISO 15001 去油脱脂清洗 |
| 布置要求 | 通风良好、远离相邻建筑物；局部结霜属正常，不得外力除霜 |
以上为常规配置参数，取自公司产品画册；流量、介质、进出口压力与接口不同时按工况单独设计，以合同技术文件为准。
选型与计算要点Selection points
适用工况Typical duties
与传统方案的对比Against the conventional approach
| 比较维度Item | 电加热式Electric | 空温式（泰燃）Ambient |
|---|---|---|
| 运行电费Power cost | 持续耗电，单台数十 kWHigh | 零耗电Zero |
| 维护Maintenance | 加热元件需更换Element replacement | 免维护None |
| 冬季能力Winter | 不受环境温度影响Stable | 约 60%，需串接补热≈60%, add trim heat |
适合什么工况，什么情况不适用Where it fits, and where it does not
这套设备适合Best for
- 零耗电、免维护，运行成本低No power draw, minimal maintenance
- 结构简单，故障点少Simple construction, few failure points
- 可并组扩展，按流量叠加Banks can be added to raise capacity
- 适合无人值守站与偏远点位Suits unattended and remote sites
需要提前确认的边界Check before ordering
- 出力随气温下降，冬季需补热或备用路Output drops in cold weather; trim heat or standby needed
- 翅片结霜后效率下降，需融霜Frost reduces efficiency; defrosting required
- 占地随流量增大，大流量场合体量可观Footprint grows with flow
标准配置Standard configuration
以上为常规配置，实际随机组按工况与用户管网条件确定，可按需增减。Standard scope shown; final scope is set by duty and network conditions, and can be adjusted.
主要零部件Main components
零部件的品牌与型号按项目技术要求与用户指定品牌确定，页内不限定具体厂家。Brand and model are fixed by project specification and the user's approved vendor list.
常见问题FAQ
结霜很厚，需要人工除霜吗？Should frost be removed manually?
轻微结霜不用管；霜层堵住翅片间隙时需要处理。常用办法是停机自然化霜或低温水冲霜，不建议用硬物敲打翅片——铝翅片很薄，敲变形就永久损失换热面积。Light frost is fine. Once it bridges the fins, de-ice by shutting down to thaw naturally or by low-temperature water. Do not hammer the fins — aluminium fins deform permanently and lose area.
出口温度总是偏低怎么办？Why is the outlet always cold?
先看实际流量是否超过设计值，再看环境温度是否低于设计工况，最后检查是否单台超负荷运行。三个原因对策不同，不要一上来就加设备。Check whether actual flow exceeds design, whether ambient is below the design case, and whether one unit is carrying the whole load. The three fixes differ.
可以和水浴式串联吗？Can it be run in series with a water bath?
可以，也很常见：空温承担主要负荷，水浴做末端补热。串联后阻力增加，要在调压段留出余量。Yes, and it is common: the ambient bank carries the bulk and the water bath trims. Series adds pressure loss, so leave margin in the regulating section.
为什么夏天能力很足、冬天不够？Why is capacity fine in summer and short in winter?
这是空温式的固有特性。换热靠温差驱动，冬季温差变小、空气含湿量低但结霜风险高，出力自然下降。这不是设备质量问题，是选型是否按最冷天校核的问题。It is inherent: heat transfer is driven by the temperature difference, which shrinks in winter, and frosting risk rises. It is a question of whether the selection used the coldest day.
多久需要维护一次？What maintenance is needed?
定期检查翅片积尘与变形、检查接管与法兰的低温密封、检查基础与支腿。空温式没有运动部件，维护量很小，但不能完全不看。Check fin fouling and deformation, low-temperature seals at flanges, and the supports. There are no moving parts, so maintenance is light — but not zero.
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把你的工况发过来，我们出选型表Send your duty, we return a selection sheet
需要提供：介质、最大/最小流量、进口压力、出口压力、现场热源（电/热水/蒸汽）、安装场地条件。We need medium, min/max flow, inlet and outlet pressure, available heat source and site conditions.