Analysis of chiller performance due to the influence of variable flow water turbine meter scale side

Abstract: analysis of chiller performance by the influence of the turbine meter scale variable flow water side information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Variable flow water turbine flow meter side effect on the performance of water chiller water flow sensor is mainly composed of copper body, flow rotor components, steady flow of components and hall element. It is installed in the water heater inlet is used for measuring water flow. When the water flow through the rotor components. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the analysis of water chiller performance by the influence of the turbine meter scale variable flow water side, the article details. Variable flow water turbine flow meter side effect on the performance of water chiller water flow sensor is mainly composed of copper body, flow rotor components, steady flow of components and hall element. It is installed in the water heater inlet is used for measuring water flow. When the water flow through the rotor component, magnetic rotor rotation, and rotation speed as the traffic changes linearly. Hall element output corresponding pulse signal feedback to the controller, the controller to determine the size of the water flow, adjust the control current of proportional valve, thus by proportional valve control gas volume, avoid gas water heater is in use process, the phenomenon of the warm winter is cool in the summer. Water flow sensor is fundamentally solves the linkage valve to start the high water pressure and differential pressure type water water valve flap type easy misoperation appear dry, etc. It is very responsive, long service life, action quick, safe and reliable, convenient connection, loved by the masses of users. Water is mainly composed of turbine rotor components of switch shell, magnetic rotor, damping ring. When using the way of water flow switch, its performance is better than that of mechanical differential pressure plate structure, and size significantly narrowed. As the water passes through the turbine switch shell, impels the magnetic rotor rotation, different magnetic pole near the hall element hall element conduction, hall element disconnect when they leave. Therefore, to measure the rotor speed. According to the measured flow and the rotor rotational speed and the output signal, Voltage) Curve, can determine the starting pressure of the water heater, and start the water pressure corresponding to start water flow and the start of the rotor speed. By the control circuit, can realize when the rotor speed is greater than the start speed when the water heater start work; When rotational speed is less than the start of the water heater to stop working. In addition, because the water under the permanent magnet magnetic field cutting, become magnetized water, increase the oxygen content in the water, make the person feel relaxed after bathing. Damping ring is the function of water, stop the high-speed rotating magnetic rotor rotating, termination of the pulse signal output. You can't get a pulse signal controller, control the gas immediately proportional valve closing valves, cut off the gas source, prevent dry. Variable flow water side effect on the performance of water chiller in the conventional air conditioning water system design, through the water chiller of chilled water and cooling water flow rate of the basic remain unchanged. Think that only to maintain constant flow, can ensure that the coil heat transfer effect, decrease traffic hours, in the heat exchange coil surface may appear laminar state, reduce the heat transfer effect; There will be at the same time, traffic hours, evaporator in danger of frozen, when the velocity is smaller than a certain value, if the water containing corrosive substance, can cause corrosion to the coil. With the development of control technology, water chiller control system is more and more advanced. At present, different types of water chiller can realize the automatic adjustment of cooling capacity. The progress of the chiller power regulating function, would make it possible to have the variable flow water side design should also highlight the pump should be change in constant change, and should be changed circumstances. In fact, at present, most of the water chiller allow evaporator flow change within 50% ~ 100% of the rated flow. When run evaporator with variable flow, the flow changes with the change of user load, when the user load hours, evaporator frozen water flow decreases, the control of the chiller system according to the actual need to reduce the refrigerant flow, cooling capacity in the evaporator coil zui refrigerant flow rate deviation by flow rate value, the overall performance of water chiller refrigeration system. Measure of evaporator can variable flow operation and energy saving is not only of frozen water pump can run time, variable flow operation should also be considered and evaporator chiller COP value decline and loss of energy consumption, to consider the load time of variable flow operation frequency. Due to the progress of control technology, the control system can ensure the compressor running in high efficient area, makes the variable flow water chiller evaporator performance will not drop a lot. Variable flow water chiller evaporator affect the performance of the refrigeration extent is associated with the way of compressor types and refrigerant flow.

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