CNG 减压撬CNG pressure reducing skid
把槽车 20 MPa 的压缩天然气降到管网或直供用户所需的压力，撬上集成换热、切断、计量与安全放散，现场接管即用。Takes 20 MPa yard gas down to network or direct-user pressure, with heat exchange, shut-off, metering and relief on one skid.
产品概述Product overview
CNG 减压撬解决的问题很具体：槽车压力随存量从 20 MPa 一路衰减到 3 MPa 以下，而下游管网只认 0.2–0.4 MPa（直供工业窑炉可低至 0.09 MPa）。中间这段落差既是压力问题，也是温度问题——高压天然气节流后温度可骤降到 −30℃ 以下，不换热就会结霜、冰堵，甚至冻裂阀口。泰燃的做法是把减压与换热放在同一撬体里成对设计，而不是先减压再补加热。Yard pressure decays from 20 MPa toward 3 MPa while the network only accepts 0.2–0.4 MPa. Joule-Thomson cooling can push gas below −30 °C, so reduction and heat exchange are designed as one pair on a single skid.
典型结构为两级减压串联：一级把 20–25 MPa 降到 2.0–3.0 MPa，二级再降到用户压力。单级压差被拆小，阀口冲刷和噪音随之下降，调节精度也更容易守住。工业和连续供气场合按“一开一备”双路配置，主路检修时备用路自动接替，不停气。换热按现场条件三选一：电加热（无热水源的点供站）、热水（锅炉或余热）、蒸汽（有蒸汽源的工厂）。Two-stage reduction splits the ratio, reducing seat erosion; duty/standby circuits keep gas flowing during maintenance. Heat source is electric, hot water or steam depending on site.
撬体出厂前完成焊接、探伤、强度与气密试验、抛丸涂装，控制柜与仪表接线在厂内联调。到现场只剩基础找平、进出口对接、氮气置换与升压——这也是撬装相对厂站式最大的价值，土建量和工期一起压缩。Welding, NDT, pressure and leak tests, blasting and coating are finished in the workshop; on site only levelling, connection, purging and pressurising remain.
结构组成What is on the skid
核心优势Why this design
- 双路自动切换：主路超压、失压或故障时切至备用路，连续供气不中断。Automatic changeover to standby on fault.
- 两级减压拆压差：单级压比小，阀口寿命长，出口压力不随上游衰减而漂移。Two stages split the ratio for stable outlet.
- 成套换热：按现场热源配置，出气温度可控，冬季不冰堵。Heat source matched to site; no winter icing.
- 厂内完成试验：强度、气密、仪表联调在出厂前做完，现场调试时间短。Shop-tested before shipment.
- 资质齐全：压力管道元件制造许可 TS2713287-2027、GC2 级安装许可 TS3813652-2027。Manufacture licence TS2713287-2027 and GC2 installation licence TS3813652-2027.
技术参数Technical data
| 型号示例Model | RTQ1500/250 · RTQ300/250 · 200 Nm³/h 级RTQ1500/250 · RTQ300/250 · 200 Nm³/h class |
|---|---|
| 额定流量Flow | 200 / 300 / 1500 Nm³/h（可至 6000）200 / 300 / 1500 Nm³/h, up to 6000 |
| 进口压力Inlet | ≤ 20 MPa（上载工况 20–25 MPa）≤ 20 MPa (20–25 MPa for uploading) |
| 出口压力Outlet | 0.09–0.4 MPa（按用户设定）0.09–0.4 MPa, set to duty |
| 减压级数Stages | 2 级（氢气等特殊介质可做 3 级）2 stages (3 for hydrogen) |
| 换热方式Heat source | 电加热 / 热水 / 蒸汽Electric / hot water / steam |
| 出气温度Outlet temp. | ≥ 5 ℃（防冰堵设定）≥ 5 °C |
| 设计压力等级Design pressure | 最高 27.5 MPa（许可覆盖范围）Up to 27.5 MPa |
| 整撬重量Weight | 约 2300 kg（1500 Nm³/h 级）≈2300 kg for 1500 Nm³/h |
表中为该系列典型配置。项目流量、介质与进出口压力不同时按工况单独设计，参数以合同技术文件为准。Typical configuration; units are engineered per duty and the contract data sheet governs.
适用工况Typical duties
与传统方案的对比Against the conventional approach
| 比较维度Item | 厂站式减压Brick-built station | 泰燃撬装式Ta'ran skid |
|---|---|---|
| 建设周期Lead time | 土建+安装，3–6 个月3–6 months | 厂内预制，现场 3–7 天接入3–7 days on site |
| 压差处理Pressure split | 单级大压差，阀口冲刷Single large drop | 两级拆分，阀口寿命长Split across two stages |
| 冬季运行Winter | 需另设加热，易冰堵Extra heating needed | 换热随机集成，出气≥5℃Heat integrated, ≥5 °C |
| 检修供气Maintenance | 停气检修Supply stops | 双路自动切换不停气Auto changeover |
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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.