Pemampat Nitrogen ZW-0.97/7.5~30 – Penggalak N2 Bebas Minyak Salur Masuk Boleh Ubah Padat untuk Kitar Semula Tekanan Sederhana

Engineered to deliver 0.97 m³/min at 3.00 MPa discharge pressure with 0.75 MPa inlet capability, the ZW-0.97/7.5~30 is a two-stage, single-row oil-free piston nitrogen compressor designed for small-scale nitrogen recycle, gas liquefaction booster circuits, and medium-pressure process applications with variable inlet conditions. Zero oil contamination, ultra-compact footprint, and optimized for continuous-duty operation.

Gambaran Keseluruhan Produk

Yang ZW-0.97/7.5~30 nitrogen compressor is a compact yet capable solution within our oil-free piston compressor family, distinguished by its keupayaan tekanan masuk yang boleh diubah suai spanning from 0.75 MPa up to the discharge pressure of 3.00 MPa. With a rated capacity of 0.97 m³/min dan tekanan pelepasan sebanyak 3.00 MPa, this unit occupies the entry-level segment of our high-pressure nitrogen compressor portfolio while maintaining the same engineering rigor as our larger models.

What makes the ZW-0.97/7.5~30 unique is its ability to accept inlet nitrogen at pressures up to 0.75 MPa, as indicated by the model designation “7.5~30” (representing inlet pressure range of 0.75 MPa to 3.0 MPa). This variable inlet capability eliminates the need for upstream pressure reduction when feeding from medium-pressure nitrogen headers or process vents, improving overall system efficiency and reducing pressure losses. The compressor can also operate from atmospheric or low-pressure inlet when required, providing exceptional operational flexibility for small-scale installations.

Pemampat menggunakan dua peringkat, satu baris (二列一级) configuration that is optimized for the moderate pressure ratio required when boosting from 0.75 MPa to 3.00 MPa. The single-row design minimizes mechanical complexity and footprint while the two-stage arrangement ensures efficient thermodynamic performance and manageable discharge temperatures. Each stage features independent cooling, preserving the integrity of the PTFE sealing elements even under sustained operation at elevated pressure.

Technical Specifications – ZW-0.97/7.5~30

* All specifications are rated at standard reference conditions (ISO 1217, Annex C). Actual performance may vary based on site altitude, ambient temperature, and inlet conditions. Capacity is specified at 0.75 MPa inlet pressure; actual capacity varies with inlet pressure.

Ciri-ciri Utama & Kelebihan Kejuruteraan

1. Variable Inlet Pressure Capability (0.75–3.00 MPa)

The ZW-0.97/7.5~30 is uniquely engineered to accept inlet nitrogen across a broad pressure range from 0.75 MPa up to 3.00 MPa. This variable inlet capability is achieved through a robust valve design and cylinder sizing that accommodates varying suction densities without mechanical distress. When fed from a medium-pressure nitrogen header at 0.75 MPa, the compressor operates at its rated 0.97 m³/min capacity. As inlet pressure increases toward the discharge pressure, the compressor transitions into a pressure-maintaining or recycle mode with progressively reduced power consumption. This flexibility eliminates the need for upstream pressure regulators or throttling valves that would waste energy and create noise, making the ZW-0.97/7.5~30 ideal for nitrogen recycle loops and process systems with variable upstream pressure.

2. Ultra-Compact Footprint for Space-Constrained Installations

Pada 2035 × 1240 × 2234 mm, the ZW-0.97/7.5~30 occupies less than 2.5 m² of floor space, making it one of the most compact high-pressure oil-free nitrogen compressors available. This dimensional efficiency is achieved through a vertically oriented crankcase design and a single-row cylinder arrangement that minimizes the machine’s longitudinal footprint. At just 2.60 tonnes, the unit can be transported and positioned using standard forklift equipment, eliminating the need for overhead cranes or specialized rigging. This compact form factor is particularly valuable for retrofit installations in existing process plants, containerized systems, and mobile nitrogen supply units where floor space is at a premium.

3. Oil-Free PTFE Composite Sealing for High-Pressure Service

The ZW-0.97/7.5~30 utilizes a proprietary pemasangan cincin omboh pelincir sendiri dan jalur penunggang manufactured from high-performance PTFE composites reinforced with glass fiber and bronze particulates. This material achieves a coefficient of friction below 0.06 without any external hydrocarbon lubrication, ensuring the nitrogen stream remains completely free of oil contamination. At 3.00 MPa discharge pressure, the partial pressure of any oil vapor would be significantly magnified, making oil-free design absolutely essential for applications requiring high-purity nitrogen. The PTFE formulation is specifically rated for continuous operation at temperatures up to 180°C, ensuring reliable sealing integrity under the thermal stress of high-pressure compression.

4. Standard 380V Drive with Low Power Consumption

The ZW-0.97/7.5~30 is driven by a 45 kW, 380V, 50Hz three-phase induction motor conforming to IEC 60034-1 efficiency class IE3. The modest power requirement of 45 kW makes this unit accessible to virtually any industrial facility with standard 380V distribution, without requiring electrical infrastructure upgrades or medium-voltage switchgear. The low power consumption also translates to lower operating costs and reduced cooling requirements, making the ZW-0.97/7.5~30 an economically attractive option for small to medium nitrogen systems.

Senario Aplikasi

Small-Scale Nitrogen Recycle & Recovery

In small chemical process plants and gas treatment facilities, the ZW-0.97/7.5~30 serves as a pemampat kitar semula nitrogen that recovers nitrogen from process vents and boosts it back to the required distribution pressure. The variable inlet capability is critical in these applications because the recovered nitrogen may be at any pressure between atmospheric and the process operating pressure. The compressor automatically adapts to the available inlet pressure, maintaining efficient operation across the full range. This recycle capability reduces nitrogen consumption by 30–50% compared to once-through systems, delivering substantial operating cost savings for small-scale operations where every efficiency gain matters.

Gas Liquefaction & Cryogenic Booster Duty

In small-scale nitrogen liquefaction plants and cryogenic systems, the ZW-0.97/7.5~30 nitrogen booster compresses nitrogen from the liquefier vaporizer or storage tank to the pressure required for distribution or further processing. The 3.00 MPa discharge pressure is sufficient for feeding high-pressure nitrogen into cryogenic storage systems, driving nitrogen through heat exchangers, or supplying high-pressure process equipment. The variable inlet capability allows the compressor to accept nitrogen directly from the liquefier at its operating pressure, eliminating intermediate pressure reduction and improving overall plant efficiency.

Pilot Plant & R&D High-Pressure Nitrogen Supply

Makmal penyelidikan dan loji kimia berskala rintis memerlukan nitrogen tekanan tinggi untuk high-pressure reactor inerting, catalyst testing under pressure, and supercritical fluid experiments. The ZW-0.97/7.5~30’s compact footprint and standard 380V electrical supply make it ideal for installation in laboratory utility rooms or pilot plant buildings. The 3.00 MPa discharge pressure is adequate for most pilot-scale high-pressure applications, while the oil-free certification ensures that nitrogen purity meets the stringent requirements of research-grade experiments and analytical instrumentation. The variable inlet capability is particularly valuable in R&D environments where experimental conditions change frequently.

Penyelenggaraan Tekanan Pengepala Tekanan Sederhana

Industrial facilities with medium-pressure nitrogen distribution headers (0.75–1.50 MPa) often require a pemampat penyelenggaraan tekanan to compensate for demand fluctuations and pipeline losses. The ZW-0.97/7.5~30 can accept nitrogen directly from the header at its operating pressure and boost it to 3.00 MPa for high-pressure consumers or back into the header to maintain pressure during peak demand periods. This dual-mode operation provides exceptional operational flexibility and reduces the need for separate compressor units, making it an economically efficient solution for small to medium facilities.

Bahan & Pembinaan

The ZW-0.97/7.5~30 is constructed from materials selected for high-pressure nitrogen compatibility, thermal resistance, and compact structural integrity:

Semua komponen galas tekanan direka bentuk dan difabrikasi mengikut ASME BPVC Bahagian VIII Bahagian 1 or Chinese GB 150 standards. Every weld joint undergoes 100% radiographic inspection (RT) per ASME Section V, Article 2, and each completed pressure vessel is subjected to a hydrostatic pressure test at 1.5 times the maximum allowable working pressure (MAWP) for a minimum hold period of 30 minutes. High-pressure piping systems are fabricated from seamless SS316 with ANSI Class 600 flanged connections to ensure leak-tight integrity at 3.00 MPa operating pressure.

Garis Panduan Pemasangan & Penyelenggaraan

Keperluan Asas & Ruang

The ZW-0.97/7.5~30 has a dry weight of 2.60 tonnes and a center of gravity approximately 700 mm above the baseplate. A pad konkrit bertetulang 4–5 tan is sufficient for stable operation, mounted on elastomeric vibration isolators (natural frequency 8–12 Hz). The single-row design generates moderate unbalanced forces that are easily managed with standard foundation practices. Minimum clearance requirements: 1.0 m on the non-drive side for valve access, 0.8 m on the drive side for motor maintenance, and 1.5 m overhead for crane access. Special attention must be paid to the high-pressure discharge piping, which must be properly supported and anchored to prevent vibration-induced fatigue at 3.00 MPa.

Spesifikasi Air Penyejuk

Permintaan air penyejuk adalah lebih kurang 8 m³/j pada suhu masuk tidak melebihi 32°C. Litar agihan air membekalkan jaket silinder dan penyejuk antara secara selari. Memandangkan nisbah tekanan yang tinggi, penyejuk antara adalah penting untuk pengurusan haba dan mesti menerima aliran air penyejukan keutamaan. Spesifikasi kualiti air: pH 6.5–8.5, jumlah pepejal terlarut < 500 mg/L, kandungan klorida < 50 mg/L (untuk mencegah kakisan tiub SS316), pepejal terampai < 30 mg/L dan jumlah kekerasan < 300 mg/L sebagai CaCO₃. Menara penyejukan gelung tertutup dengan penapisan aliran sisi disyorkan untuk tapak yang mempunyai kualiti air marginal.

Jadual Penyelenggaraan Pencegahan

The oil-free design of the ZW-0.97/7.5~30 dramatically simplifies maintenance compared to lubricated alternatives. There are no oil changes, no oil analysis, no filter replacements, and no separator cartridge changes. The primary consumable wear items are the Cincin omboh PTFE dan jalur penunggang, yang biasanya mencapai 3,000–5,000 jam hayat perkhidmatan di bawah keadaan nitrogen bersih. Plat injap tekanan tinggi mungkin memerlukan pemeriksaan yang lebih kerap daripada setara tekanan rendah disebabkan oleh peningkatan tekanan mekanikal, tetapi beban penyelenggaraan keseluruhan kekal jauh lebih rendah daripada sistem pelincir minyak.

Pensijilan Pematuhan & Keselamatan

The ZW-0.97/7.5~30 nitrogen compressor is designed, manufactured, and tested to meet or exceed the following international standards and regulatory frameworks:

Analisis Prestasi & Kecekapan

The ZW-0.97/7.5~30 achieves a specific power consumption of approximately 46.39 kW per m³/min of nitrogen at 3.00 MPa discharge pressure from 0.75 MPa inlet. While this specific power appears high in absolute terms, the true efficiency advantage lies in the keupayaan untuk menerima salur masuk tekanan tinggi tanpa pengurangan tekanan yang membazirkan tenaga. When compared to systems that throttle 0.75 MPa nitrogen down to atmospheric pressure before re-compressing to 3.00 MPa, the ZW-0.97/7.5~30 saves approximately 45–55% of the compression energy by utilizing the available inlet pressure directly.

Over an 8,000-hour annual operating cycle in a typical nitrogen recycle application, the ZW-0.97/7.5~30’s variable inlet capability yields approximately 80,000–120,000 kWh of energy savings compared to systems requiring upstream pressure reduction. At $0.08/kWh, this represents $6,400–$9,600 in annual electricity cost reduction. When combined with the elimination of oil-related consumables and the avoidance of downstream purification equipment, the jumlah kos pemilikan untuk pemampatan kitar semula nitrogen dikurangkan sebanyak anggaran 30–40% sepanjang hayat operasi selama 10 tahun.

The absence of oil in the compression path is particularly valuable in recycle applications because any oil contamination would accumulate in the closed nitrogen loop, progressively degrading product quality and potentially contaminating process equipment. The ZW-0.97/7.5~30’s native oil-free design ensures that nitrogen purity is maintained indefinitely in recycle service.

Keupayaan Penyesuaian & OEM

We offer flexible customization options to adapt the ZW-0.97/7.5~30 to specific site conditions and integration requirements:

• Pakej Lekap Gelincir: Pemampat, motor, penyejuk, instrumentasi dan panel kawalan yang telah dipasang pada skid keluli struktur dengan poket forklift. Mengurangkan pemasangan lapangan kepada sambungan elektrik dan air penyejuk sahaja.
• Unit Treler Mudah Alih: The ZW-0.97/7.5~30 can be mounted on a road-legal trailer with integrated diesel generator, cooling system, and nitrogen storage, creating a fully mobile nitrogen supply unit for construction sites, pipeline maintenance, and emergency response.
• PLC & Pemantauan Jauh: Siemens LOGO! atau S7-1200 PLC pilihan dengan skrin sentuh HMI, sambungan Ethernet dan penggera SMS/e-mel. Sesuai dengan Modbus TCP/IP untuk penyepaduan SCADA.
• Kandang Akustik: Compact IP54-rated sound enclosure reducing noise from 82 dB(A) to 68 dB(A) at 1 meter, suitable for indoor installations in noise-sensitive environments such as laboratories and office-adjacent machinery rooms.
• Label OEM & Persendirian: Skim cat tersuai, papan nama berjenama dan dokumentasi setempat untuk pengedar peralatan gas dan penyepadu sistem.

Konfigurasi tersuai tersedia daripada MOQ 1 unitCadangan kejuruteraan biasanya dihantar dalam tempoh 3–5 hari bekerja. Masa penghantaran standard ialah 10–12 minggu; penghantaran dipercepatkan dalam tempoh 8 minggu tersedia untuk pesanan yang layak.

Case Study: Pilot Plant Nitrogen Recycle Optimization

Pelanggan: A specialty chemical R&D facility in Singapore operating multiple pilot-scale high-pressure reactors

Cabaran: The facility was purchasing high-pressure nitrogen cylinders for reactor inerting and purge operations, consuming approximately 200 cylinders per month at a cost of $15,000/month. The spent nitrogen was vented to atmosphere at 0.60–0.90 MPa after passing through the reactors, representing a significant waste of both gas and energy. The facility wanted to recover and recycle this nitrogen but needed a compact compressor capable of accepting variable inlet pressure and boosting it to 2.50 MPa for re-use in the high-pressure reactor feed system.

Penyelesaian: Kami membekalkan ZW-0.97/7.5~30 oil-free nitrogen compressor configured on a compact skid with integrated intercooler, aftercooler, and a Siemens LOGO! PLC control panel. The variable inlet capability allowed the compressor to accept nitrogen directly from the reactor vent header at whatever pressure was available (0.60–0.90 MPa), eliminating the need for upstream pressure regulation. A 0.5 m³ surge vessel was installed upstream to dampen pressure fluctuations from the batch reactor cycle.

Keputusan yang Diukur Selepas 18 Bulan:

• Nitrogen cylinder purchases: Reduced by 72% (from 200 to 56 cylinders/month), saving $10,800/month
• Pelepasan lubang nitrogen: Reduced by 72%, improving environmental compliance
• Pencemaran minyak dalam nitrogen kitar semula: <0.01 mg/m³, ensuring no reactor contamination
• Ketersediaan pemampat: 97.8% over 18 months, with only scheduled maintenance downtime
• Tempoh bayaran balik: 1.4 years based on cylinder cost savings alone

“The ZW-0.97/7.5~30 has transformed our nitrogen supply from a recurring expense into a closed-loop system. We’ve cut our cylinder purchases by nearly three-quarters, and the compact size meant we could install it in our existing utility room without any building modifications. The variable inlet feature was the key that made this project work.” — R&D Operations Manager, Specialty Chemical Facility

Soalan Lazim & Panduan Pemilihan

Produk & Penyelesaian Berkaitan

Untuk gambaran keseluruhan yang komprehensif tentang kami pemampat nitrogen perindustrian portfolio, termasuk pemampat oksigen bebas minyak, pemampat hidrogen, pemampat karbon dioksida dan penyelesaian gas khusus yang direka khas, sila hubungi pasukan kejuruteraan aplikasi kami atau layari katalog produk dalam talian kami.

Ready to Optimize Your Small-Scale Nitrogen Recycle System?

Jurutera aplikasi kami sedia membantu untuk menilai keperluan aliran nitrogen, keadaan tekanan masuk, sasaran tekanan pelepasan dan kekangan integrasi anda. Kami menyediakan cadangan teknikal, lukisan susun atur, gambar rajah perpaipan dan instrumentasi (P&ID) percuma, serta analisis jumlah kos pemilikan (TCO) terperinci dalam tempoh 48 jam selepas menerima pertanyaan anda.

Emel: [email protected] | Respons dalam masa 24 jam