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Dynamic Stability Loop Research Bench
Dynamic Stability Loop is a multi-loop, medium-pressure test rig for investigating inhibitor stability and low-viscosity inhibitor filter clogging in offshore environments.
Application
Multi-loop test bench for flow testing
- Research into the long-term stability of petroleum chemicals
- Viscosity testing in pipes
- Research into oil emulsion persistence/breakdown
- Inhibitor effectiveness analysis
- Filter clogging test
- Heating and cooling baths for stress testing
- 6 cycles for parallel pressure testing
- Closed-loop and extended-loop (sample reservoir) testing
Basic DySL system- Nitrogen/Methane Pressure Regulator, Inlet/Outlet Pressure Gauge, Inlet/Outlet Valve
- Liquid circulation cooling thermostat SC150-A10B, -10..+100 °C, sequential control
- Liquid circulation heating thermostat, SC150-S30, +30..+150 °C, sequential control
- A/D converter, sensor adapter
- Control PC, DualCore, 19'' LCD monitor, Windows 7 English, US keyboard
- Control software, pressure and temperature monitoring, bath control, constant temperature, variable temperature, step temperature, automatic test recording, data storage
- Independent fill/clean and start/stop of each cycle, assisted suction pressure
- Possibility of installation and simultaneous testing of all 6 cycles
- Possibility of installation and simultaneous testing of all 6 cycles
- Easy to handle thanks to pneumatic filling and suction pressure
- Computer controlled, automatic data collection
- HPLC pump, flow rate 0.1 .. 5 ml/min, maximum pressure 150 bar (15 MPa, 2176 psi)*, stainless steel
- 0.5 L sample reservoir, 1.5 bar (0.15 MPa, 21.7 psi)*, protective cover (plexiglass/stainless steel)
- HPLC microfilter with replaceable frit, filter size 5 µm / 20 µm, stainless steel / plexiglass
- 5 electronic pressure sensors, maximum pressure 150 bar (15 MPa, 2176 psi), stainless steel
- Back pressure regulator, manual adjustment device, maximum back pressure 150 bar (15 MPa, 2,275 psi)*, spring kit
How the system worksThe measuring setup consists of 6 high-pressure test circuits, within which the sample is pumped through pressurized cooling and heating thermostats. Each flow test cycle creates extreme stresses on the sample by constantly varying flow rates, increasing and decreasing pressure, heating and cooling the environment, and simulating real-life flow conditions. Two capillaries in each circuit are integrated to measure the change in sample viscosity. Two filters in each circuit allow you to study the clogging of filters. An increase in the pressure drop between the inlet and outlet of the measuring capillary indicates the level of risk of flow blockage due to increased fluid viscosity or deposition on the pipeline walls.
In both thermostats, both heating and cooling, there is a constant measurement of oil viscosity and filter clogging due to continuous monitoring of pressure drop and control of pressure changes over a long time. The ability to customize absolute pressure, back pressure and temperature allows you to simulate a variety of test conditions.
To carry out the tests, the required sample volume should be only 20 ml. Testing can be carried out in open or closed circuit. In an open loop, the sample is continuously pumped back into the reservoir. This allows you to examine the entire volume of liquid in the tank. Thus, the sample volume can be increased to 500 ml. In a closed cycle, the volume of pumped sample does not exceed 10 ml.
Expansion of the pressure range for all elements of each circuit of the test bench- Increased operating pressure for all parts of the plant, including the sample tank, maximum pressure 172 bar (17.2 MPa, 2,500 psi)
- Gas pressure regulator, self-ventilation, self-pressure release
Parameter Meaning Pressure: Up to 150 bar (15 MPa, 2175 psi) Temperature: Cooling bath -10 .. +150°C (14 .. 302°F)
Heating bath +30 .. +150°C (86 .. 302°F)Filter: 5 µm / 10 µm Pipeline: 1/16'', ID 0.7 mm Consumption: from 0 to 10 ml/min Possibilities: Up to 6 cycles of parallel, independent research
