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天然ガス・コンプレッサー・ステーションの仕組み

Pipeline gas cannot move long distances without a pressure boost. That task falls to the natural gas compressor station, a strategically placed facility that keeps molecules flowing from wellhead to city gate. In this guide you will discover the gas compression process, major station equipment, and how to pick trustworthy natural gas compressor manufacturers.

1️⃣ Why Compressor Stations Are Essential

Friction inside pipelines, elevation changes, and branch taps steadily rob pressure. Therefore, compressor stations for natural gas restore flow velocity every 80-160 km. Without them, throughput would stall, supply contracts would fail, and liquids could drop-out, causing corrosion.

2️⃣ The Gas Compression Process Step-by-Step

  1. Inlet Separation
    – Gas first enters a scrubber that removes water and condensate.

  2. Suction Cooling
    – An intercooler lowers temperature, increasing density before compression.

  3. Compression Stage(s)
    – Pistons, screws, or centrifugal impellers raise pressure to pipeline spec.

  4. After-Cooling
    – Heat of compression is removed; liquids condense and exit via knock-out pots.

  5. Metering & Odorization
    – Flow meters verify volume; odorant may be injected for leak detection.

  6. Discharge to Pipeline
    – Clean, pressurized gas re-enters the main line for the next journey segment.

Meanwhile, remote PLCs log vibration, temperature, and energy data, allowing the control center to optimize load-sharing across multiple units.

3️⃣ Core Equipment You’ll Find on Site

System Purpose Typical Technology
Prime mover Converts fuel to shaft power Gas engine or electric motor
コンプレッサー Raises pressure Reciprocating, screw, or centrifugal
Coolers Remove heat Air-fin radiators or water exchangers
Separation Eliminate liquids Vertical or horizontal scrubbers
Controls & safety Automation / shutdown PLC + SCADA + ESD valves

Keepwin packages combine oil-free reciprocating bodies with high-speed motors to hit 100 bar discharges while meeting API-618 vibration limits.

4️⃣ Choosing Between Reciprocating and Screw Trains

ファクター レシプロ Screw
Pressure (>80 bar) ✔ High ◻ Limited
Flow stability 脈打つ Smooth
Part-load efficiency Strong Lower
Maintenance interval 8 000 h 4 000 h

Hence, cross-country trunk lines rely on multistage pistons, whereas gathering systems favor twin-screw skids for continuous, moderate pressure.

5️⃣ Selecting Reliable Manufacturers

When comparing natural gas compressor manufacturers, evaluate:

  1. API-certified designs (618, 11P)

  2. Proven references in similar gas composition

  3. Availability of local service teams

  4. Spare-parts lead time under 72 hours

  5. Portfolio overlap with hydrogen compressor manufacturers—a sign of high-pressure expertise

6️⃣ Future-Ready: Hydrogen Blending

Energy grids are preparing 5–20 % H₂ blends. Stations will need materials and seals compatible with hydrogen embrittlement. Keepwin already delivers reciprocating skids certified by leading hydrogen compressor manufacturers standards, ensuring tomorrow’s compliance today.

✅ Quick Checklist for Station Designers

  • Size for 110 % of expected peak flow.

  • Use two units + one standby for redundancy.

  • Recover jacket-water heat for building HVAC.

  • Install continuous leak-monitoring sensors.

  • Implement quarterly vibration analysis to extend bearing life.

Need More Details?

Keepwin Technology Hebei Co., Ltd. supplies complete, modular compressor stations for natural gas, including engineering, fabrication, and FAT. Contact our team for a tailored design package.

📧 keepwin@keep-win.com🌐 www.keep-win.com

Stay pressurized—keep gas moving.

John Hannahの写真

ジョン・ハンナ

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