Design of liquid pump test bed
A cylinder assist for disassembly and re assembly, a 24" heavy duty triple chain vise, a pressure boost system and 70K Nut Buster have been developed in conjunction with the heavy duty disassembly table.
The pump test stand can be set up to test open and closed loop pump, and open and closed loop motors. We can build a stand that can test a hydrostatic pump and motor together. We quote the stand in a modular sequence, starting with the base stand, the drive module, regeneration module, PLC electronic control module, data acquisition module, motor test modules, etc.
This video shows a hydraulic pump test stand in action using a Vickers Hydraulic Vane Pump. See the data acquisition program run on the laptop and display diagnostics of gallon per minute, RPM and PSI as the engine revs up and setting adjustments to pressure impact the readings. Watch to see all the features in action. Our pneumatic pump test stand engineering and manufacturing team designed equipment to accurately measure readings. The diagnostics are essential to evaluate its condition.
A large, high-capacity micron filter cleans all returning test oil. The cartridge style unit is located to provide easy access for filter cartridge replacement.
This allows for flooded suction ports while design of liquid pump test bed a low profile. It surrounds the drive motor, which helps to conserve on space while maximizing oil volume. The side storage cabinet is used to store couplers and fittings, keeping an uncluttered work area. The cabinet is drained to the table to allow waste oil from the fittings to be collected.
Quick release suction lines keep the stand clean when not in use and increases efficiency by reducing pump set up times. The standard mechanical flow gauges can be sized or configured to your specifications. Electronic flow meters, with or without data logging, are available as an option. Panel mounted remote controls for each of the integral relief valve 3 total allow for precise pressure control of the pump. A high-pressure design of liquid pump test bed limit set at the integral relief valves to provide additional safety margin.
By keeping the controls and monitoring gauges on the side of the stand, and putting a protective barrier between the test pump and the technician, we protect them from the very real danger of injury without obstructing their visibility.
Pump controls are mounted on the side of the stand for safety. The hydraulic drive includes all hoses, tubing, fittings, and installation on the pump test stand. The start relay and enclosure for the electric motor is included in the drive package. Voltage and cycle information for your shop must be specified before ordering the hydraulic drive to insure proper sizing of the motor and starter.
Other size motor pump combinations and electronic proportional control configurations can be ordered as special units, prices to be determined at the time of order. Multiple standard design of liquid pump test bed pump units can be installed for a wider range of test conditions and flows. Call for more details on design of liquid pump test bed and pumps. Variable displacement hydraulic motors may be special ordered for a wider range of pumps test configurations, call for more information.
Variable displacement regeneration pump B: Fixed displacement regeneration pump. Regeneration is the use of the flow from the test pump to help power the main drive unit in order to save horsepower and reduce heat buildup in the stand. The flow from the test pump is sent through a hydraulic motor that drives a hydraulic pump, which is connected into design of liquid pump test bed main drive circuit. As the regeneration pump volume control is stroked it puts a load on the test pump while also adding flow to the main drive circuit.
The main hydraulic pump is de-stroked to maintain the drive rpm. A 40 hp electric motor on the standard pump test stand can test a hp hydraulic pump circuit with a regeneration unit.
The standard regeneration unit is supplied with a fixed displacement motor but a variable displacement motor is an option for increased range of flow for the regeneration circuit. The regeneration package includes the fixed displacement motor, mechanically controlled variable displacement pump, regeneration manifold, valves, fittings, tubing and hoses to complete the circuit.
Electronic flowmeters and pressure gauges can be ordered to replace the mechanical meters and gauges on the basic test unit. More accurate digital readings and the capability to add data acquisition to the stand are the main advantages of the electronic meters and gauges. The meters and gauges can be integrated into the PLC control at a later time to upgrade the test stand in stages. The PLC screen is shown on the right with the display from the electronic flowmeter and pressure gauge and digital tachometer.
The size of the screen and screen display colors vary according to the number of gauges and meters used. PLC with analog and digital expansion modules and various other electrical controls mounted in the electrical box. Typical control screen layout for a PLC controlled standard test. Shown set up with 3 individual pump test circuits. The PLC control of the pressure, flow and rpm of the circuit replaces the manual controls on the Base Unit.
Digital flow meters and pressure transducers replace the manual flow meters and pressure gauges. The electronic control of the flow and pressure allows the stand to be programmed for automatic pump tests and modified standard test routines. A large touch screen is mounted on the operator station to replace the mechanical gauges and controls the programmed test functions.
Standard PLC package does not include programming for automatic tests or data logging, these can be purchased separately and are usually quoted on a time and material basis.
The PLC controls the individual pressures and flows in the Base Unit with proportional control relief valves and electronic proportional control of the pumps and motors of the hydraulic drive unit. The cost includes changing the relief valves and pump controls to electronic controllers.
It uses the hydraulic power from the MSD-PTS-HD to power the motors, and loads the motors through the relief valves or regeneration circuit on the main design of liquid pump test bed test stand. The motor test module uses two separate test stations on the stand to handle both high-speed motors and low-speed high torque design of liquid pump test bed.
The stand uses a hydraulic pony brake system, with a pump for the high-speed test and a low speed hydraulic motor for the low-speed test, to place a dynamic load on the test motor. The backpressure in the pony brake hydraulic circuit determines the torque load on the test motor. It has an oil containment pan and sealed stand bed to catch oil from the motor to keep the work area cleaner and safer.
The standard relief manifold does not have the capability to easily connect to the regeneration circuit module; add this module when you order the base unit.
Return oil from the drained work area can be automatically collected from the test stand, filtered, and returned to the main reservoir by the Return Oil Module. The oil drains from the work area into a separate drain reservoir inside the test stand. Learn more about hydraulic equipment repair.
Hydraulic Test Stands The pump test stand can be set up to test open and closed design of liquid pump test bed pump, and open and closed loop motors. Hydraulic Pump Test Stand We quote the stand in a modular sequence, starting design of liquid pump test bed the base stand, the drive module, regeneration module, PLC electronic control module, data acquisition module, motor test modules, etc.
Watch the hydraulic pump test video by clicking the play icon. Pneumatic Pump Test Stand Our pneumatic pump test stand engineering and manufacturing team designed equipment to accurately measure readings. Symmetrical inlet and outlet test ports C.
Set-up to handle various port configurations, sizes and placements. Wide range of pump sizes. Custom configuration one or two stations, PLC control etc. Analog pressure gauges, psi. Integral relief manifold for pressure testing circuits.
Drive motor digital tachometer. Built in storage cabinet for fittings and small hoses D. Isolation mounts on the adjustable pump test mounting bracket. The built in lighting gives good workspace illumination. The digital drive motor tachometer design of liquid pump test bed large easy to read digits. Fixed design of liquid pump test bed hydraulic motor installed in test stand. Fixed displacement regeneration pump Regeneration is the use of the flow from the test pump to help power the main drive unit in order to save horsepower and reduce heat buildup in the stand.
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The set-up of the test beds required for this purpose varies depending on the task. They range from straightforward functional test beds right through to complex test facilities which have to meet the highest requirements on precision.
A distinction is made in this context between "open" and "closed" test beds. In the case of an open test bed, the pump is mounted next to a basin with an open water surface see Atmospheric pressure.
The pump takes the fluid handled from here and discharges it back into the basin via several measurement and control devices see Metrology. In the case of closed test beds so-called design of liquid pump test bed a great variety of operating conditions can be simulated by means of suitable system pressures see NPSH available regardless of the pumps' installation altitude.
This is particularly important when investigating cavitation. Closed-loop test set-up schematic Fig. View of closed-loop test set-up cavitation test facility.
This ensures that the following quantities design of liquid pump test bed be determined during the performance test: Despite the fact that centrifugal pumps can be, or indeed, have to be tested in situ in the system particularly where a high power input is involvedthe pump test facilities used within the field of centrifugal pump technology must be continually improved, adapted or planned all over again. In future, the test facility measurements that constitute the final testing of the individual products, for example, are going to be streamlined even further.
Thanks to the increased use of electronic data processing systems, the pump testing process is becoming largely automated.
As part design of liquid pump test bed this, the measured data can also be fully documented. Given that pump units are constantly increasing in size, it is not always possible to carry out tests on the pump test facility under original conditions. As a result, tests can be carried out at reduced speed, as permitted by the relevant standards. Alternatively, there is the option of carrying out a model test.
In this case, tests are carried out on a scaled-down model of the centrifugal pump to be tested. However, these tests call for a very high level design of liquid pump test bed precision, as the results are extrapolated to real-life conditions see Affinity laws. The role of the pump test is to verify the operating and performance data, to check functional reliability and to identify ways of improving and advancing products research and development. Within this context, it has to be possible to measure pressuresflow ratesinput and output powersspeeds, noise emissions, strength levels, and vibrations and to assess the behaviour of the pumps under certain conditions see Operating behaviour.
The measuring instruments used for acceptance tests must meet stringent precision requirements and must undergo official and in-house calibration repeat calibration cycles recommended in DIN EN ISO These precision requirements are defined by the test class of the acceptance standard that is used. When tests are carried out in an open or closed circuit in accordance with design of liquid pump test bed test bed's design of liquid pump test bed, all the pump output power is converted into heat.
Consequently, a relatively large test water reservoir is required. Cooling equipment may also be required. Data privacy and Cookies. Search A-Z Suche nach. Pump test facility When developing pumps and testing the finished products e.
In special cases, such as when recording processes e. On the pump test facility, it is more common to use standardised throttles in accordance with ISO see Standard orifice plate, Standard nozzle and Standard Venturi nozzle, Venturi tube as well as instruments for measuring velocity MIF magnetic-inductive flow metering or ultrasonic flow metering and instruments for measuring mass in accordance with the CORIOLIS principle.
In the case of very high flow rates, special procedures must be used such as vane measurements over the cross section. This is generally done in conjunction with speed measurement. Normally, the electrical power consumed by the drive is measured using the two-wattmeter method.
The motor is usually calibrated by determining the individual loss. If 60 pulses per revolution are selected together with a count period of 1 second, it is possible to display the speed directly in min—1. Simplified speed measurements can also be taken using manually incremented revolution counters and tachometers in accordance with the eddy current principle error: These special requirements must be taken into account when planning a pump test facility see safety regulations.
In special cases, velocity measurements are taken using laser and ultrasonic technology.