Descripción
Compresor de nitrógeno ZW-13/30: compresor de nitrógeno sin aceite de capacidad media para aplicaciones de procesos de alta presión de 3,00 MPa.
Diseñado para ofrecer 13 m³/min a una presión de descarga de 3,00 MPa, el ZW-13/30 es un compresor de nitrógeno de pistón de dos etapas y tres filas, libre de aceite, ideal para la inyección de nitrógeno a alta presión, estaciones de llenado de cilindros de gas y aplicaciones críticas en procesos petroquímicos. Ofrece cero contaminación por aceite, un robusto equilibrio de fuerzas en las tres filas y está optimizado para un funcionamiento continuo a alta presión.
Descripción general del producto
El ZW-13/30 nitrogen compressor represents a powerful mid-range solution within our oil-free piston compressor family, engineered for applications where both substantial flow capacity and high discharge pressure are simultaneously required. With a rated capacity of 13 m³/min y una presión de descarga de 3.00 MPa, this unit occupies a critical position in the high-pressure nitrogen compressor market, bridging the gap between small laboratory-scale units and massive industrial boosters.
What distinguishes the ZW-13/30 from conventional alternatives is its vía de compresión totalmente libre de aceite utilizing self-lubricating PTFE composite piston rings and rider bands. This design philosophy eliminates any possibility of hydrocarbon contamination in the nitrogen product stream, achieving Certificación ISO 8573-1 Clase 0 natively. At 3.00 MPa discharge pressure, the risk of oil vapor carryover is substantially magnified compared to low-pressure applications, making the oil-free design not merely advantageous but absolutely mandatory for food-grade, pharmaceutical, and electronics-grade nitrogen service.
La arquitectura del compresor emplea un dos etapas, tres filas (二列三级) configuration that is essential for managing the extreme pressure ratio required to achieve 3.00 MPa from typical inlet conditions. The three-row opposed-cylinder arrangement provides superior force balance compared to two-row designs, reducing vibration transmission and permitting installation on lighter foundations. Each compression stage is equipped with an independent high-efficiency intercooler, ensuring gas temperatures remain within safe operating envelopes even during sustained maximum-load operation. The robust cast-iron frame and dynamically balanced forged steel crankshaft are rated for a minimum service life of 120.000 horas bajo protocolos de mantenimiento estándar.
Technical Specifications – ZW-13/30
| Parámetro | Valor | Unidad |
|---|---|---|
| Modelo | ZW-13/30 | – |
| Patrón | Dos etapas, tres filas (二列三级) | – |
| Capacidad | 13 | m³/min |
| Presión de descarga | 3.00 | MPa |
| Dimensiones del compresor (largo × ancho × alto) | 2764 × 2000 × 3277 | mm |
| Peso | 6.00 | t |
| Fuerza | 160 | kW |
| Voltaje | 380 | V |
| Medio gaseoso | Nitrógeno (N₂) | – |
| Lubricación | Sin aceite | – |
* Todas las especificaciones se basan en condiciones de referencia estándar (ISO 1217, Anexo C). El rendimiento real puede variar según la altitud del lugar, la temperatura ambiente y las condiciones de entrada.
Características principales y ventajas de ingeniería
1. Three-Row Opposed-Cylinder Force Balance
The ZW-13/30 employs a unique three-row opposed-cylinder arrangement (二列三级) that provides exceptional first-order and second-order force cancellation. By distributing the compression work across three cylinders arranged in an opposed configuration, the compressor achieves near-perfect inertial force balance, reducing vibration transmission to the foundation by over 90% compared to single-row designs. This mechanical advantage is particularly critical for high-pressure compressors where the peak gas forces on the pistons are substantially higher than in low-pressure applications. The three-row design permits installation on a lighter reinforced concrete inertia block (minimum 10 tonnes versus 15+ tonnes for equivalent single-row units), significantly reducing civil engineering costs and simplifying retrofit installations in existing process plants.
2. Sellado compuesto de PTFE sin aceite de alta presión
The ZW-13/30 utilizes a proprietary Conjunto de anillo de pistón autolubricante y banda de apoyo manufactured from high-density PTFE composites specifically formulated for high-pressure service. These rings are reinforced with glass fiber and bronze particulates to achieve a coefficient of friction below 0.05 without any external hydrocarbon lubrication. At 3.00 MPa discharge pressure, the partial pressure of oil vapor would be approximately 10 times higher than at 0.30 MPa, making oil contamination far more concentrated and difficult to remove. The ZW-13/30’s native oil-free design achieves Certificación ISO 8573-1 Clase 0 without any downstream filtration, eliminating both the capital cost and the energy penalty of oil-removal equipment. The PTFE formulation is rated for continuous operation at temperatures up to 185°C, ensuring reliable sealing integrity under the extreme thermal stress of high-pressure compression.
3. Two-Stage Thermodynamic Optimization for Extreme Pressure Ratios
El arquitectura de compresión de dos etapas of the ZW-13/30 is thermodynamically essential for achieving the 3.00 MPa discharge pressure target from typical inlet pressures of 0.05–0.10 MPa. The overall pressure ratio of approximately 30:1 to 60:1 is divided between a low-pressure cylinder group and a high-pressure cylinder group, with each stage operating at a manageable pressure ratio. A high-efficiency shell-and-tube intercooler between stages removes the substantial heat of compression, maintaining discharge temperatures below 160°C and preventing thermal degradation of the PTFE sealing elements. Without staged compression, the discharge temperature would exceed 250°C, far beyond the safe operating limit of any oil-free sealing material. The inter-stage cooling is therefore not merely an efficiency enhancement but a fundamental requirement for reliable high-pressure oil-free operation.
4. Standard 380V Industrial Motor Drive with High Efficiency
The ZW-13/30 is driven by a Motor de inducción trifásico de 160 kW, 380 V, 50 Hz conforming to IEC 60034-1 efficiency class IE3. The standard low-voltage configuration integrates directly into existing 380V industrial distribution panels without requiring medium-voltage switchgear or step-down transformers. This electrical simplicity reduces both capital expenditure and commissioning complexity, making the unit accessible to a wide range of industrial facilities. For sites with 6kV or 10kV bus systems, an optional motor with integrated step-down transformer can be supplied on a common skid, providing seamless integration into any electrical infrastructure.
Escenarios de aplicación
Estaciones de llenado de cilindros de nitrógeno a alta presión
The ZW-13/30 is ideally suited for industrial nitrogen cylinder filling operations where high-pressure gas must be compressed into standard industrial cylinders at 15–20 MPa filling pressure. While the compressor’s 3.00 MPa discharge pressure does not reach cylinder filling pressure directly, it serves as a highly efficient intermediate booster that dramatically reduces the compression ratio required of downstream high-pressure filling compressors. The 13 m³/min capacity can supply multiple filling manifolds simultaneously, making the ZW-13/30 suitable for commercial gas filling stations serving industrial, medical, and specialty gas markets. The oil-free design is mandatory for cylinder filling because any oil contamination would be trapped in the cylinders and delivered to end-users, potentially compromising their processes and creating liability exposure.
Nitrógeno para procesos petroquímicos de alta presión
In petrochemical and refinery operations, the ZW-13/30 high-pressure nitrogen compressor provides nitrogen for reactor catalyst preservation, emergency injection into high-pressure vessels, pipeline pressure testing, and hydrostatic testing of process equipment. The 3.00 MPa discharge pressure is sufficient to inject nitrogen into process vessels operating at pressures up to 2.5 MPa, maintaining positive inert gas blankets during startup, shutdown, and upset conditions. The continuous-duty rating ensures uninterrupted nitrogen availability during extended turnaround campaigns. The oil-free certification is mandatory for petrochemical applications where nitrogen contacts catalyst beds or enters process streams that must remain completely hydrocarbon-free.
Impulsor de licuefacción de gas y almacenamiento criogénico
In nitrogen liquefaction plants and cryogenic storage facilities, the ZW-13/30 compresses nitrogen from the liquefier vaporizer or storage tank boil-off 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, and supplying high-pressure consumers in the process plant. The 13 m³/min capacity matches the output of small to medium-scale liquefaction plants, making the ZW-13/30 an ideal integrated booster for on-site nitrogen liquefaction systems. The oil-free design prevents contamination of the cryogenic equipment and ensures the purity of liquid nitrogen product.
Pharmaceutical & Food-Grade High-Pressure Nitrogen
Pharmaceutical manufacturing and large-scale food processing facilities require high-purity nitrogen at elevated pressure for sterile filtration, spray drying, aseptic filling, and high-pressure packaging applications. The ZW-13/30’s oil-free certification ensures compliance with FDA 21 CFR 211.72 and EU GMP Annex 1. The 3.00 MPa discharge pressure provides adequate head to drive nitrogen through sterile filtration systems, spray dryers, and high-pressure packaging equipment. The 13 m³/min capacity can simultaneously supply multiple pharmaceutical process lines or food packaging stations within a single manufacturing facility, making the ZW-13/30 a versatile central nitrogen supply solution.
Materiales y construcción
The ZW-13/30 is constructed from premium materials selected for high-pressure nitrogen compatibility, thermal resistance, and extended operational life:
| Componente | Material | Especificación |
|---|---|---|
| Bloque de cilindros (LP) | Hierro fundido gris | GG25 / HT250, espesor de pared estándar |
| Bloque de cilindros (HP) | Hierro fundido gris | GG25 / HT250, pared reforzada gruesa + nervaduras |
| Cigüeñal | Acero aleado forjado | 42CrMo4, Q&T, ISO 1940 G2.5, equilibrado dinámicamente |
| Anillos de pistón | Compuesto de PTFE, vidrio y bronce | Alta presión, autolubricante, 185 °C máximo. |
| Bandas de jinete | Compuesto de PTFE | Guía del pistón, antidesgaste, tasa de desgaste <0,04 mm/1000 h |
| Placas de válvulas | Acero inoxidable | SS316, high-pressure concentric ring spring design |
| Bielas | Acero forjado con cojinetes de Babbitt | Extremo grande mecanizado con precisión y lubricado con aceite |
| Intercooler | Carcasa de acero al carbono / Tubos de acero inoxidable SS316 | ASME VIII Div.1, prueba hidrostática 1,5×, retención de 30 min |
| posenfriador | Carcasa de acero al carbono / Tubos de acero inoxidable SS316 | Tubo aleteado de alta presión, agua de refrigeración a 32 °C |
| Tuberías de alta presión | Acero inoxidable sin costuras | Bridas de acero inoxidable SS316, clase ANSI 900 |
| Marco base | Acero estructural | Fabricación soldada, montaje con amortiguación de vibraciones |
Todos los componentes sometidos a presión están diseñados y fabricados en estricta conformidad con ASME BPVC Sección VIII División 1 o las normas chinas GB 150. Cada junta soldada se somete a una inspección radiográfica (RT) 100% según la Sección V, Artículo 2 de ASME, y cada recipiente a presión terminado se somete a una prueba de presión hidrostática a 1,5 veces la presión máxima de trabajo admisible (MAWP) durante un período mínimo de 30 minutos. Los sistemas de tuberías de alta presión se fabrican con acero inoxidable SS316 sin costura con conexiones bridadas ANSI Clase 900 para garantizar la estanqueidad a una presión de funcionamiento de 3,00 MPa.
Guía de instalación y mantenimiento
Requisitos estructurales y de cimentación
The ZW-13/30 has a dry weight of 6.00 tonnes and a center of gravity approximately 900 mm above the baseplate. Thanks to the three-row opposed-cylinder design, unbalanced forces are minimal despite the high-pressure operation, permitting installation on a Bloque de inercia de hormigón armado de 10 a 12 toneladas. The block should be mounted on elastomeric vibration isolators (natural frequency 6–8 Hz). Minimum clearance requirements: 1.5 m on the non-drive side for valve access, 1.2 m on the drive side for motor maintenance, and 2.0 m overhead for crane access during major overhauls. Special attention must be paid to the high-pressure discharge piping, which must be properly supported, anchored, and stress-relieved to prevent vibration-induced fatigue at 3.00 MPa.
Diseño del sistema de agua de refrigeración
La demanda de agua de refrigeración es aproximadamente 28 m³/h at an inlet temperature not exceeding 32°C. The water distribution circuit supplies the cylinder jackets, intercooler, and aftercooler in parallel branches. Given the extreme pressure ratio, the intercooler is absolutely critical for thermal management and must receive priority cooling water flow at all times. Water quality specifications: pH 6.5–8.5, total dissolved solids < 500 mg/L, chloride content < 50 mg/L (to prevent SS316 tube corrosion), suspended solids < 30 mg/L, and total hardness < 300 mg/L as CaCO₃. A closed-loop cooling tower with side-stream filtration and chemical treatment is strongly recommended for all installations to ensure consistent water quality.
Programa de mantenimiento preventivo
| Intervalo | Artículo de servicio | Acción requerida |
|---|---|---|
| A diario | Inspección operativa | Compruebe la vibración, el ruido anormal, el flujo de agua de refrigeración, la presión de descarga y la temperatura. |
| 250 horas | Inspección de la placa de válvulas | Retire e inspeccione las válvulas de succión/descarga para detectar depósitos de carbono, fatiga de los resortes y grietas. |
| 1.000 horas | Evaluación del desgaste de los anillos del pistón | Mida la holgura de la ranura del anillo; reemplace los anillos si la holgura supera los 0,20 mm. |
| 3.000 horas | Revisión intermedia | Reemplace todos los anillos de pistón, las bandas de retención y los conjuntos de placas de válvulas. |
| 6.000 horas | Revisión general | Inspeccione los muñones del cigüeñal, mida las holguras de los cojinetes principales, reemplace los cojinetes si son >0,08 mm. |
The oil-free design of the ZW-13/30 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 Anillos de pistón y bandas de retención de PTFE, which typically achieve 3,000–5,000 hours of service life under clean nitrogen conditions at high pressure. The high-pressure valve plates may require more frequent inspection than low-pressure equivalents due to the increased mechanical stress at 3.00 MPa, but the overall maintenance burden remains significantly lower than oil-lubricated systems.
Certificaciones de cumplimiento y seguridad
The ZW-13/30 nitrogen compressor is designed, manufactured, and tested to meet or exceed the following international standards and regulatory frameworks:
ASME BPVC Sección VIII Div.1, GB 150-2011, PED 2014/68/EU Módulo A
IEC 60034-1 (eficiencia IE3), IEC 60204-1, ISO 12100 seguridad de maquinaria
ISO 8573-1 Clase 0 (Contenido de aceite), probado independientemente por TÜV Rheinland.
ISO 9001:2015 (Gestión de la calidad), ISO 14001:2015 (Gestión ambiental)
Nitrogen is classified as a simple asphyxiant gas. At 3.00 MPa discharge pressure, the risk of rapid gas release and oxygen displacement is severely elevated. All ZW-13/30 installations must incorporate continuous oxygen deficiency monitoring in the compressor room and all adjacent areas. High-pressure discharge piping must be equipped with pressure relief valves rated at 110% of MAWP and rupture discs as secondary protection. All high-pressure connections must be verified with ultrasonic leak detection before commissioning. Ventilation systems must maintain ambient oxygen above 19.5% per OSHA 29 CFR 1910.146. Emergency shutdown interlocks should activate at 19.5% O₂ (alarm) and trigger automatic isolation at 18.0% O₂ (hard shutdown). Personnel must be trained in high-pressure gas safety protocols and must never attempt to disconnect pressurized lines.
Análisis de rendimiento y eficiencia
The ZW-13/30 achieves a consumo de potencia específico de aproximadamente 12,31 kW por m³/min of nitrogen delivered at 3.00 MPa discharge pressure. This specific power figure reflects the thermodynamic reality of ultra-high-pressure compression, where the work required increases substantially with pressure ratio. Within the high-pressure oil-free piston compressor segment (discharge pressure >2.50 MPa), this efficiency is competitive and often superior to diaphragm compressors, which are the primary alternative for oil-free high-pressure service. For comparison, oil-lubricated reciprocating compressors in similar ultra-high-pressure applications typically consume 13.0–15.0 kW/m³/min, while diaphragm compressors may exceed 18 kW/m³/min.
Over a standard 8,000-hour annual operating schedule, the ZW-13/30’s efficiency advantage versus less efficient alternatives yields approximately 60,000–140,000 kWh of annual energy savings. At $0.08/kWh, this represents $4,800–$11,200 in direct electricity cost reduction per year. However, the primary economic driver for ZW-13/30 selection is typically the eliminación de consumibles relacionados con el petróleo y evitación de equipos de eliminación de petróleo posteriores that would be mandatory with lubricated alternatives. At 3.00 MPa, the partial pressure of oil vapor is approximately 15 times higher than at 0.30 MPa, making downstream oil-filtration systems exponentially more expensive and less effective. The Coste total de propiedad para la compresión de nitrógeno a ultra alta presión. Se reduce en un estimado de 25–35% durante una vida útil operativa de 10 años cuando se compara el funcionamiento sin aceite con sistemas lubricados con purificación completa aguas abajo.
The absence of oil in the compression path is particularly critical at 3.00 MPa because oil contamination becomes highly concentrated and virtually impossible to remove to the levels required by food-grade, pharmaceutical, and semiconductor applications. The ZW-13/30’s native oil-free design eliminates this challenge entirely, providing guaranteed product purity without the complexity and cost of downstream purification trains.
Capacidades de personalización y fabricación de equipos originales (OEM)
We offer comprehensive customization options to adapt the ZW-13/30 to specific site conditions, integration requirements, and end-user specifications:
- Paquetes llave en mano montados sobre patines: Pre-assembled compressor, motor, intercooler, aftercooler, high-pressure discharge piping, instrumentation, and control panel on a structural steel skid with integrated lifting lugs and anchor bolt templates. Factory pre-testing of all systems reduces commissioning time and risk.
- Configuraciones de áreas peligrosas: ATEX Zone 2 and IECEx compliant motor and electrical enclosures for petrochemical installations. Integrated gas detection and automatic ventilation interlocks incorporated into the control system.
- Control avanzado de procesos: Optional Siemens S7-1200 or Allen-Bradley CompactLogix PLC with 10-inch HMI touchscreen, remote monitoring via Modbus TCP/IP or OPC-UA, and seamless DCS/SCADA integration. High-pressure safety interlocks including automatic unload on overpressure, emergency isolation valves, and redundant pressure monitoring.
- Protección ambiental: C5-M marine-grade coating systems for coastal installations; tropicalized electrical components for ambient temperatures up to 55°C; and IP54-rated acoustic enclosures reducing noise emission from 85 dB(A) to 72 dB(A) at 1 meter.
- Fabricantes de equipos originales y marcas privadas: Custom paint colors, branded nameplates, and localized documentation packages for gas equipment distributors and system integrators. Technical manuals and maintenance procedures available in multiple languages.
Las configuraciones personalizadas están disponibles en Cantidad mínima de pedido: 1 unidadLa revisión de ingeniería y la elaboración de propuestas suelen requerir de 5 a 7 días hábiles. El plazo de entrega estándar es de 12 a 14 semanas; los pedidos repetidos se entregan en un plazo de 8 a 10 semanas a partir de la confirmación del pedido.
Case Study: Industrial Gas Filling Station Upgrade
Cliente: A major industrial gas supplier in Malaysia operating a nitrogen cylinder filling station serving manufacturing, medical, and food processing customers
Desafío: The client’s existing oil-lubricated high-pressure compressor (European brand, 14 years in service) was experiencing progressive oil carryover into the nitrogen product stream. Oil contamination levels reached 2.2 mg/m³, far exceeding the 0.1 mg/m³ specification required by pharmaceutical and food-grade customers. The oil was also degrading the activated carbon purification beds in the filling manifold, requiring replacement every 5 months instead of the designed 18-month interval. Customer complaints were increasing, and regulatory inspections were becoming more frequent and demanding.
Solución: Suministramos un ZW-13/30 oil-free nitrogen compressor as the primary intermediate booster, configured on a custom skid with integrated intercooler, aftercooler, and a Siemens S7-1200 PLC control panel. The 3.00 MPa discharge pressure fed a downstream high-pressure filling compressor, reducing the overall compression ratio required of the filling stage. The oil-free design eliminated the need for activated carbon purification beds entirely. A 3 m³ surge vessel was installed upstream to buffer demand fluctuations from the filling manifold.
Resultados cuantificados después de 24 meses:
- Contenido de nitrógeno en el aceite: Reduced from 2.2 mg/m³ to <0.01 mg/m³, logrando la norma ISO 8573-1 Clase 0
- Sustitución del lecho de carbón activado: Eliminado por completo, ahorrando $12.000/año en consumibles
- Quejas de los clientes: Cero since commissioning, with five new pharmaceutical contracts won
- Mantenimiento del compresor de llenado: Reduced by 35% debido a una menor relación de presión de entrada
- Regulatory inspection results: Passed with zero findings in two consecutive audits
- Periodo de recuperación de la inversión: 2.3 years basado en el ahorro de costes y los nuevos ingresos por contratos
“The ZW-13/30 has transformed our filling station from a quality risk into a competitive advantage. We now guarantee ISO 8573-1 Class 0 nitrogen to every customer, and we’ve won contracts that we couldn’t even bid on before. The oil-free design has eliminated our biggest operational headache and our customers have noticed the difference immediately.” — Operations Director, Industrial Gas Supplier
Preguntas frecuentes y guía de selección
Productos y soluciones relacionados
Compresores de nitrógeno de alta presión serie DW
Diseñada para presiones de descarga de 0,40 MPa a 2,00 MPa, la serie DW abarca la inyección de nitrógeno, el aumento de presión en tuberías y la síntesis química. Ofrece capacidades de 2 a 130 m³/min con configuraciones multietapa.
Compresores multietapa sin aceite de la serie ZW
Compresores verticales multietapa sin aceite para oxígeno, nitrógeno, hidrógeno y gases especiales. Presiones de descarga de hasta 9,00 MPa para aplicaciones de llenado de gas a ultra alta presión y procesos químicos.
Compresores de nitrógeno de gran capacidad de la serie LW
Compresores de pistón sin aceite de alto caudal (20–130 m³/min) para respaldo de unidades de separación de aire criogénicas, refuerzo de sistemas de bombeo de vapor y distribución por tuberías industriales. Presiones de descarga de 0,30 a 0,80 MPa.
Para obtener una descripción general completa de nuestros compresor de nitrógeno industrial Para obtener más información sobre nuestra cartera de productos, que incluye compresores de oxígeno sin aceite, compresores de hidrógeno, compresores de dióxido de carbono y soluciones de gases especiales diseñadas a medida, póngase en contacto con nuestro equipo de ingeniería de aplicaciones o consulte nuestro catálogo de productos en línea.
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