1、 Product Overview

QBZWater Injection PumpThe unit is directly driven by a diesel enginecentrifugal pumpWater supply. The entire unit is mainly composed of a diesel engine and a D-type multi-stage centrifugal pump. The driving connection between the diesel engine and the centrifugal pump is a high elasticity coupling. A pre injection process suitable for pressure testing of oil pipelines and natural gas management.

2、 Product Features

The unit is under overall control by the diesel engine control system, and is driven after the diesel engine is startedwater pumpwork. The diesel engine control system has display alarms and protection control functions for high water temperature, oil temperature, oil pressure, and overspeed.

3、 Main advantages

The QBZ type pry mounted water injection pump unit is designed and developed by our company based on the absorption of advanced technologies at home and abroad, and according to the special environmental conditions of our customers. The QBZ type pry mounted water injection pump unit overcomes many problems that arise during operation in special environments, and has undergone multiple improvements and innovations based on the specific conditions of the construction site. It has the characteristics of easy operation, simple use, stable performance, and full intelligence. It meets the construction needs of water supply and drainage engineering for field operations and is an ideal equipment for pipeline leak testing and pressure testing. The QBZ type skid mounted water injection pump unit is widely used in engineering projects such as the Russia China oil pipeline, the India East West Gas Pipeline, the Kazakhstan water pipeline, the China West East Gas Pipeline, and the South to North Water Diversion Project. The QBZ type pry mounted water injection pump unit fills the gap of no mobile high-pressure water supply and drainage equipment in China.

In the long-term field operation of water supply and drainage engineering, the QBZ type pry mounted water injection pump unit has the following advantages:

advantage1、

The housing of QBZ type pry mounted water injection pump unit adopts the internationally recognized 20 foot standard container structure, which is sturdy and can be lifted and pry mounted, and can move freely horizontally or vertically as needed. The container body is modified according to the special usage environment and equipped with universal fixed locking pins for easy international and domestic long-distance transportation; The external three sided ten door structure meets the connection of pipelines in any direction. The box adopts a double-layer metal structure on each side, with insulation materials embedded in the inner layer to ensure the firmness and warmth of the shell. It has good insulation and heat dissipation functions and is suitable for operation in harsh environments and low temperatures. The ambient temperature is -22 ℃~+50 ℃, and it is suitable for harsh environmental climate conditions: the air contains less than 5% of sand, dust, rain, snow, fog and other weather conditions.

advantage2、

The QBZ type pry mounted water injection pump unit adopts two transmission modes: electric motor drive and engine direct drive, which are widely used in field mobile operations. The engine drive transmission mode meets the normal water supply and drainage construction without electricity (if there is electricity, electric motor drive can be selected).

advantage3、

The water injection pump unit adopts a combined assembly form, where the engine, pump, and connecting base are assembled as a whole to ensure the concentricity of the unit. The drive connection between the engine and pump adopts advanced automatic adjustment high elasticity drive connection, which overcomes the problems of frequent maintenance and replacement of column pins, replacement of spring rings, and detachment of column pin nuts caused by long-term vibration in the cancellation type coupling transmission, ensuring the long-term good operation of the pump unit under high load; The container is equipped with lighting devices to ensure normal illumination for night work.

advantage4、

The engine control system implements overall control. After the diesel engine is started, it drives the water pump to operate. The engine control system has high display alarms and protection controls for water temperature, oil temperature, oil pressure, overspeed, etc. It can monitor the operation of the unit at any time. If various data exceeds the actual usage requirements and an alarm is displayed, it can be stopped for maintenance at any time to avoid other faults caused by minor problems.

advantage5、

Install a bypass reflux interface at the pump outlet. When the pipeline does not require water injection temporarily, the bypass reflux can be openedvalveClosing the outlet gate valve can achieve the goal of not stopping the pump and prevent the pump from running for a long time at the dead center, thereby extending the service life of the equipment.

advantage6、

When the unit is running, if the filter suddenly malfunctions and needs maintenance and cleaning, and it is inconvenient to shut down, it is recommended to set up a simple bypass filter pipeline at the pump outlet, bypass the filter to connect to the injection water pipeline, and install a filter screen to enable short-term operation without shutting down. When opening the bypass filter tube, the butterfly valve on the bypass pipeline should be opened before closing the inlet gate valve of the filter. According to usage, a bypass pipeline may not be set up.

advantage7、

The water outlet is equipped withcheck valveGate valves need to be installed during testing or operation. Check valves and gate valves prevent the pumped medium from flowing back during shutdown maintenance, avoiding water hammer damage caused by excessive reflux pressure. If constant pressure water supply is required during shutdown maintenance, a constant pressure water supply pressure tank can be matched according to requirements to ensure constant pressure water supply and maintain the required pressure during shutdown maintenance (the constant pressure water supply device needs to be specified when ordering).

advantage8、

According to the requirements of the pumped medium, a fully automatic backwash filter (with low filtration accuracy) can be matched50µm）Inject water or drain water into the pipeline, drive the water pump to operate after the engine is started, and send water to the filter. The inlet and outlet of the filter are automatically backwashed, cleaned, and discharged through differential pressure switch control. Ensure that the medium being pumped meets the usage requirements. The filter power is directly supplied by the diesel engine24Vperhaps220VPower control operation, the filter device can be installed along the pump axis or aligned with the pump axis90Installation at ℃ (fully automatic backwash filter needs to be specified when ordering).

advantage9、

A vacuum suction device can be installed inside the container according to customer needs, which is used to suction air from the pipeline when the water injection pump unit is turned on, filling the inlet pipeline and the water injection pump unit with liquid without the need for additional water injection. This facilitates field operations and avoids false filling during manual water injection, as the air in the inlet pipeline and the water injection pump unit is not completely discharged, resulting in cavitation inside the pump. Vacuum suction equipment can be driven by an engine or electric motor according to the requirements of the host configuration.

advantage10、

There is a fixed oil tank inside the container with a capacity of 1000 liters. It is equipped with oil filling port, oil outlet port, oil return port, oil level gauge, and oil drain port, which can monitor the oil level of the tank according to the oil level gauge. The interior of the fuel tank has undergone anti-corrosion treatment, which has extended its service life. Additionally, a toolbox should be set up for easy storage of tools and simple accessories, making it convenient for maintenance at any time.

4、 Parameter Table