Constant temperature and humidity air-conditioning system energy saving method

Now in the era of progress, the use of constant temperature and humidity air conditioning system is to more widely, we in the use of the process of how to reduce the energy consumption and achieve energy saving a lot of people still don't understand, we can from the following several direction to achieve the goal of energy saving.

The air volume control, constant temperature and humidity air conditioning system.In order to meet the indoor sanitary requirements, added local exhaust air volume, maintain.Indoor positive pressure, must adopt certain new wind force, and the excess air exhaust to the outside.In setting heat recovery unit, exhaust duct along with fresh air to exhaust energy to pretreatment, can reduce energy consumption for the imported fresh air.In the summer, outdoor air temperature is generally higher than the set temperature of air conditioning room, the introduction of the new air volume is increase the cost of air conditioning cooling load of the system, take the small new air volume at this time.Other seasons, on the premise of guarantee the small new air volume, according to the indoor thermal and moisture load, set the temperature and humidity and outdoor air condition to choose the appropriate new wind force and wind system form (a return air, secondary return air, full fresh air).Because indoor cooling load is bigger, such as program-controlled equipment room, refrigeration unit to run all year round.In winter, can increase the new outdoor air volume appropriately, make full use of the outdoor cold source to eliminate indoor heat load, reduce the operation cost.In transition seasons, fresh air enthalpy value is lower than a return air enthalpy, can be a secondary return air system of return air closed, by the air conditioning box in every function to deal with fresh air, the fresh air after processing in negative pressure section of mixed with the secondary return air blower to interior, thus reducing the energy consumption of air conditioning units.

Second, the constant temperature and humidity control precision of temperature and humidity of the unit.In order to effectively control the precision of temperature and humidity, constant temperature and humidity air conditioning system design, generally adopt the method of temperature compensation and humidity compensation.These methods can create table part of cold quantity and part of the heater heat offset, puts forward some amount of dehumidification and humidifier humidification quantity offset, is a waste of energy.This kind of situation is mainly by the improper temperature and humidity control strategy and the thermal inertia of the heater, humidifier wet inert, puts forward inertia caused by cold.When designing the control strategy, and each function should be period of inertia into account, is helpful to reduce the temperature and humidity compensation wasted energy and reduce the energy consumption of the device itself.

Three, air treatment equipment.Constant temperature and humidity air conditioning box generally add wet period, heating, cooling and dehumidifying paragraphs and sent back to the wind section, and other functions, is used to implement air thermal wet processing, air regulation and transmission.Air conditioning system energy saving or not is closely related to the energy-saving sex of air treatment equipment.humidifier Generally as the electrode humidifier, with three electrodes, stainless steel or copper bar do put it is not easy to rust water container, and for water resistance.After the electricity, the current through the waters, for heating water and produce steam humidifying air.Its safe operation, high humidifying efficiency, but power consumption is bigger.Electrode type humidifier start-stop control strategy, commonly used when the humidifier is turned off, humidification tank water temperature is still high, because the humidifier placed in the inlet of the fan, there are still some hot water to create steam humidifying air, cause the wind system humidity increase.In order to effectively control the humidity accuracy, must run refrigeration dehumidification system, thereby increasing the system energy consumption.By modified electrode type humidifier electrode type stepless humidifier, can according to need how many to adjust the output of the humidifier humidification quantity, which reduces the humidifier wet inert, avoids refrigeration system power consumption, save the energy.Ultrasonic humidifier has good atomization effect, even water droplets imperceptible, responsive, no wet inert, and low energy consumption, but the demand for water is high.In the process of operation, to improve the water quality and water treatment system has a lot of energy consumption.Should adopt what kind of humidifier is energy saving, according to the size of the system load, air handling process (electrode humidification for isothermal humidification, ultrasonic humidification for enthalpy humidifying), such as comprehensive consideration, the operation of the equipment energy consumption, etc.Heater is commonly tubular electric heater, it has the advantages of uniform heating, good safety, heat stability, but more energy consumption and has a large thermal inertia.For heating or electric heater USES hierarchical stepless heating, reducing thermal inertia, decrease the system energy consumption.Constant temperature and humidity unit is running, sometimes use heat to heat the air system itself.For example, when the air relative humidity to achieve dehumidification Settings and dehumidifying quiet zone, the sum of dehumidification refrigeration system, the equipment operation will cause the air temperature drops, electrical heating opens for temperature compensation.At this point, the refrigeration system condenser contains large amounts of heat energy is available for use.In order to make full use of the condensation heat, compressor should be out of the hot refrigerant heating air first, and then into the condenser.Refrigerant piping layout, want to consider how to reduce the refrigerant flow resistance and heat air effectively, the effective control of heat this a few aspects, when the condensation heat can not meet the requirement of the added heat or refrigeration system is not running and need the air to heat, enable the electric heater to compensate.Puts forward the function is to dehumidification and cooling air duct general refrigerants.When puts distance outdoor units and refrigeration system, in order to prevent the compressor suction pressure is insufficient, using water as the carrier, cold cold energy exchange with the evaporator, puts for chilled water at this time.In order to reduce puts cold inert, avoid heater temperature compensation, must according to the variation of indoor thermal and moisture load refrigerant or of refrigerant flow in pipe.When puts forward for direct evaporative cooler for refrigerant (table), such as using the frequency conversion compressor, with the loss of the cooling load, the refrigerant flow rate will decrease (because of the constant temperature and humidity air conditioning unit refrigeration system of the throttle body is commonly thermal expansion valve or electronic expansion valve), the lower the suction pressure and evaporation pressure, resulting in a loss of evaporation temperature, eventually make refrigeration system efficiency is reduced.Adopts frequency conversion compressor can regulate the flow of refrigerant is not only beneficial to reduce puts cold inert, and can reduce the energy consumption of refrigeration system.Puts forward the frozen water, may adjust the water flow through the valve or variable frequency pump directly.But in order to avoid the frosty evaporator for lack of water, chilled water flow can not arbitrarily reduce.Valve adjustment, as the valve opening up, gradually increase in the resistance of pipelines and water flow decreases at the same time, the pump will deviate from the optimal operation point, the pump running energy consumption.Using variable frequency pump control, variable frequency pump can and decreased with the decrease of the chilled water flow by frequency conversion motor power consumption.

Shanghai wet and electrical equipment co., LTD. Is a national high-tech enterprise, specializing in the production of composite wind ark, clean type constant temperature and humidity purification units, precision energy-saving water chilling unit, central air conditioning units, fresh and ultra-low temperature cold storage refrigeration equipment.Company research and development of refrigeration equipment, with 100% of the independent intellectual property rights, there are 16 domestic invention patent.In equipment manufacturing, assembling, quality inspection, debugging process, such as a set of perfect quality supervision and guarantee system, factory ISO9001, ISO14001, GBT2008 quality, environment and occupational health system certification.The national industrial products production license is XK - 06-01017.Equipment operation within a year if encountered technical problems or refrigeration fittings failures, can call 021-60531214 or 15821726609 for consultation.We will according to the appointment time to help you rule out the use of all of the process of equipment malfunction.