Instruction handbook: Vertical Turbine Pump - VTP

General information

Use

Standards and guidelines

Use of manual

Item numbering

Warranty and liability

Service address

Copyright

General information about the safety instructions

Warnings and hazard symbols

Intended use

General information about machine safety

Hazardous applications

If flammable or potentially explosive media are handled, all electric motors, cables and controls must be explosion-proof. If the medium to be processed is dangerous (e.g. toxic, explosive, flammable, etc.), appropriate safety measures must be taken.

Operating company’s obligations

General obligations of personnel

Safety devices

Safety covers

Warning signs

Information signs

Personal protective equipment

Safety at the installation site

Temperature

Noise

Electrical equipment

Welding work

Oils and greases

Fire

Field of application

Technological description

Type specification

Type code

Applicable standards

Name plate

Application limiting values

Permitted loads on connecting branches

Main components

Vertical turbine pump

Function Equalization of the velocity profile by means of an accelerating effect with the aim of making the inlet at the inlet of the impeller as uniform as possible. The spherical roller bearing carries the axial load of the rotor weight, the axial hydraulic load of the impeller and the radial load. The bearing housing is equipped with oil fill and oil drain ports, an oil level gauge and, optionally, a resistance thermometer.

The top of the pitot tube in the bearing housing is higher than the open surface of the oil in the oil chamber. For this reason, a seal between the rotating shaft and the bearing housing is not required. A felt ring in the bearing cover protects the oil chamber from dust, dirt and external water.

To set the impeller gap, the axial position of the rotor can be approximated by a.

Shaft seal

If the pump is started several times a day (several dry run times), an external flushing device is necessary. Monitoring To ensure correct operation, the sealing water must be monitored by suitable monitoring devices according to the diagram below. The lifting equipment must show the manufacturer's name, the name of the material and the permitted load.

The pump and components may only be lifted in accordance with the following instructions and figures. If the length is greater, the pump is delivered in modules and assembly must be carried out on site. The overall completion of the various steps should be documented in the certificate of completion of the lifting work.

Movable parts that can change their position and therefore have points of compression or shear must be secured with support bars or equivalent measures (eg lowering). The backlash and clearance tolerances specified in the clutch manufacturer's instructions must be observed. The pipes must be installed in such a way that they do not strain the machine during operation (e.g. due to thermal expansion of the pipes).

If dangerous backflow can occur after switching off the pump, a backflow preventer must be installed in the pressure line. During installation, ensure that the pipes are supported so that no forces, vibrations and weights can be transmitted to the pump. The discharge pipe must be supported in such a way that the weight of the pipe is not transferred to the pump.

The maximum permitted forces and torques that the pump can absorb can be found in the chapter "Permitted loads on connection tasks". After adjustment, the coupling must be equipped with a coupling shield (>> Safety covers [} 13]) in accordance with statutory regulations. The bearings of the motor that are not on the drive side must be insulated.

Cold test (preparation for initial start-up)

Disassembly and disposal

General

Safety regulations

Prerequisites for commissioning

General prerequisites

Special prerequisites

Improper or no pump lubrication can result in dangerous situations for personnel and damage to the machine. If the pump is stored for a long period of time before commissioning, dirt and water may penetrate.

Start-up

Running the pump dry can result in risks to life and limb and damage to the machine. Under no circumstances should the pump be allowed to run dry, even briefly. First test run The pump function must be carefully monitored during the first few hours of operation.

However, a delayed shutdown after 600 seconds must be included in the design of the control system for operation on a closed slider. If unusual noises occur, the cause of these noises must be found and rectified immediately.

Reports

General

Safety regulations

Chemicals

Control by means of the process control system

Start

Checks after initial commissioning

Normal operation

Vibration

Pump requirements

Shutdown

Operating malfunctions and troubleshooting

Pumping system requirements should be checked. The foundation is not suitable. Lay a new foundation. Insufficient pipe support. Check the pipe support, strengthen it if necessary. The pump and motor are not sufficiently aligned Check the alignment of the pump and motor or realign them.

Check the pump; replace worn or damaged parts as necessary. Bearings are worn or loose. Disassemble the pump and replace it. Excessive bearing wear Pump and motor not sufficiently aligned Check pump alignment and. Poorly installed or dirty bearings Replace the bearings if necessary and check if the lubrication is dirty.

Insufficient pre-priming pump Repeat system pre-priming Pump output is under. Pump system requirements should be checked. The pump and motor are not the same with each. Worn or loose bearings Disassemble pump and replace bearings if necessary Pump shaft broken or odd Replace pump shaft and bearing.

General information

Safety regulations

Regular maintenance

Water, steam or other cleaning agents must not be allowed to penetrate any electrical machine parts.

Maintenance schedule

Fasteners

Checks

Inspection If screws are not tightened according to specifications, they may loosen or break under operating conditions. Therefore, all connection screws must be checked during maintenance work. Tightening In connection with the inspection and maintenance work, it is imperative that all connection screws are tightened to the torque indicated on the drawings or to the torque shown in the table.

Aligning the coupling

Lubrication

Oil lubrication

When assembled at the factory, the bearings and the oil chamber are protected by a preservative oil for approx. If an oil level regulator is installed, it must also be filled with oil. If longer oil change intervals are desired, perform an oil analysis after 7000–8000 operating hours to determine the optimal oil change intervals.

Oil change Oil is poured in accordance with the lubrication schedule [} 66] while the device is switched off.

Pump

Installing and removing the pump
Installing and removing the impeller
Turning off (machining) the impeller
Balancing the impeller

Risk of injury from slipping of the key with the striking face and from the worn and sharp-edged driver. The required diameter for certain pumping data can be seen on the characteristic curve or on the data sheet.

Changing the seal

STANDARD cartridge seal – single-action

If the shaft seal leaks, there is a risk of burns and chemical burns from escaping medium. Check the seal and try to determine the cause of the fault (dry running, wear, etc.).

Stuffing box

There is a high risk of crushing and pulling into the machine while setting up the stuffing box. During the first few hours of operation, you should check the stuffing box at short intervals. Adjust so that you can ensure that the shaft on the sealing flap is always wet.

If the stuffing box becomes hot, unscrew the screw connection of the stuffing box and check the amount of sealing water.