Pipeline cutting

Water cutting technology, with its characteristics of no open flames and zero high temperatures, has become the safety benchmark for high-risk operations in the petrochemical industry. It not only eliminates the risk of explosions but also offers advantages such as high precision, environmental friendliness, and efficiency. It has been widely applied in scenarios such as tank demolition, pipeline maintenance, and hazardous chemical disposal.

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features & advantages

Features1
Completely flame-free and zero high temperature, the cutting process occurs near room temperature and generates no static electricity, effectively eliminating the risk of ignition and explosion at its source.
Features2
Waterjet cutting can achieve millimeter-level precision. The cut edges are smooth and flat, free of burrs and chipping, eliminating the need for secondary processes such as grinding, and can be directly prepared for subsequent hoisting, welding, and other operations.
Features3
Portable waterjet equipment is compact and lightweight, allowing it to be easily transported to narrow spaces, elevated platforms, and other work areas.
Features4
During the waterjet cutting process, only a small amount of wastewater is produced, which can be recycled on-site after simple filtration. There are no toxic gas or dust emissions, fully meeting the requirements of green industrial development.

Product Description

1. Oil Tank Maintenance and Dismantling
The oil-gas mixture remaining inside oil tanks is the “number one killer” for traditional hot work operations. Waterjet cutting technology allows oil-involved operations without emptying the tank. For example, a refinery installing monitoring equipment on 10 crude oil storage tanks used low-pressure waterjet cutting with garnet abrasive. Without tank cleaning or hot work, all openings were completed within 7 days with a precision of ±0.5 mm, shortening the original schedule by 50% and saving the company over ten million yuan in production losses.

2. Pipeline Live Operations
Live pipeline leak sealing or cutting is a common requirement in the petrochemical industry. Traditional hot work requires depressurization, causing production interruptions. Waterjet cutting can precisely cut corroded pipeline sections under pressure while simultaneously preparing bevels. For instance, when a northwest oil pipeline experienced a sudden leak due to corrosion, a portable low-pressure waterjet device completed the replacement in just 6 hours, avoiding an estimated economic loss of over 8 million yuan caused by a 48-hour shutdown.

3. Reactor Cleaning and Modification
Cleaning and removing deposits from reactor walls is a challenge for chemical companies. Traditional chemical cleaning poses environmental risks, and manual cleaning can take up to two weeks. Using a low-pressure rotary waterjet nozzle combined with a customized cleaning solution, deposits up to 15 cm thick were completely removed in only 3 days. Wastewater was recycled on-site through a filtration system, achieving “zero hazardous waste discharge,” and production capacity increased by 12% after equipment restart.

4. Hazardous Chemical Disposal
For equipment containing flammable and explosive residues such as phenol or formaldehyde, waterjet cutting is the only safe and reliable solution. Barosch Group’s waterjet cutting system, equipped with AI intelligent control and gas detection interlock modules, can safely operate in high-risk environments with residual oil and gas. It successfully cut equipment with a 14.7 cm thick wall, completing the task one day earlier than traditional hot work and increasing equipment recovery rate by 20%.

5. Offshore Platform Operations
Offshore platforms have limited space and complex flammable and explosive environments, making it difficult for traditional cutting equipment to enter. Portable waterjet equipment is compact and lightweight, allowing flexible transport to narrow spaces, elevated platforms, and other work areas. For example, in offshore platform tank opening cases, waterjet cutting technology completed high-precision openings without affecting the normal operation of the platform.

Equipment Parameters

Item	Unit	Technical Parameters (QSM-3-11-Bbs)	Technical Parameters (QSM-3-15-Bbs)
Machine Model	/	QSM-3-11-Bbs	QSM-3-15-Bbs
Working Pressure	MPa	6~30	6~30
Motor Power	kW	11	15
Working Voltage	V	380	380
Water Pump Flow	L/min	15~45	20~60
Cutting Thickness	mm	80	120
Cutting Speed	mm/min	80~100	90~120
Machine Noise	dB	90	90
Machine Weight	kg	370	450
Overall Dimension	mm	1150×900×450	1200×900×900
Mixing Tank Weight	kg	90	110
Water Tank Dimension	mm	660×42×99	750×42×96
Water Tank Capacity	L	70	80
Abrasive Tank Capacity	L	30	40
Abrasive Weight	kg	80	100
Continuous Working Time	min	50min/abrasive	60min/abrasive
Working Medium	/	Clean water, garnet sand	Clean water, garnet sand
Garnet Grit Size	Mesh	80	80
Garnet Flow Rate	kg/min	1.5~2.0	2.0~2.5
Nozzle Diameter	mm	Cutting: 0.8~1.0<br>Derusting: 2.0~3.0<br>Cleaning: 3.0~5.0	Cutting: 0.8~1.0<br>Derusting: 2.0~3.0<br>Cleaning: 3.0~5.0
Frequency Range	Hz	Cutting: 20~30<br>Derusting: 30~50<br>Cleaning: 40~60	Cutting: 20~30<br>Derusting: 30~50<br>Cleaning: 40~60
Water Pump Flow (by Scenario)	L/min	Cutting: 15<br>Derusting: 30<br>Cleaning: 45	Cutting: 20<br>Derusting: 40<br>Cleaning: 60
Working Pressure (by Scenario)	MPa	Cutting: 25~30<br>Derusting: 8~12<br>Cleaning: 8~10	Cutting: 25~30<br>Derusting: 8~12<br>Cleaning: 8~10