KR101946860B1 - Energy saving control system of smart dry dehumidifier - Google Patents

Abstract

The present invention provides an energy saving control system of a smart dry dehumidifier, which improves operating efficiency by dividing the operation of the dry dehumidifier by season and significantly saving energy through smart efficient operation management since a great economical energy loss due to the operation of a cooling coil and a regenerative heater of the dry dehumidifier throughout the year occurs. To achieve the purpose, the present invention provides an energy saving control system of a smart dry dehumidifier, comprising: a precooling unit cooling the introduced outside air; a return cooling unit returning and cooling a portion of the air discharged from a dry room; a dehumidification rotor receiving the air, discharged from the precooling unit and the return cooling unit, through a supply fan and dehumidifying the received air; a rear-end cooling unit cooling the portion of the air discharged from the dehumidification rotor and a rear-end heater heating the portion of the air, in accordance with the temperature conditions of the dry room, if necessary; a regenerative heater receiving and heating the portion of the air discharged from the dehumidification rotor; and a regeneration fan allowing the air heated by the regenerative heater to be dehumidified through the dehumidification rotor and then discharged to the outside. A great number of sensors are installed for each component, measured values and set values are compared and analyzed in real time, and the central control unit is notified of the comparison and analysis result to quickly perform control.

Description

Energy saving control system of smart dry dehumidifier

The present invention can effectively control the operation of the cooling unit and the heating unit by taking into account the temperature and humidity of the outside air by dividing the operation control of the dry dehumidifier by the season, thereby reducing unnecessary energy loss and dramatically improving the energy recovery efficiency Dry dehumidifier.

      The dehumidifier is widely used in various field equipment production lines, semiconductor production lines, and automation facilities, which are installed in a specific space or outside to remove moisture from the air. In a cooling dehumidifier, an evaporator, A compressor is installed together with the condenser, a suction fan is provided in front of the evaporator and the condenser, and when the room air introduced into the main body comes into contact with the evaporator maintaining the dew point, the room air is included in the room air And to dehumidify the moisture contained therein.

      The dry dehumidifier generally has a main body in which a regenerative side passage through which outdoor air passes and a processing side passage through which room air passes are partitioned by a partition wall and a main body through which the partition wall is rotatable in a direction perpendicular to the regenerative side and process side passage And a heater installed in the regeneration side passage for drying and regenerating the dehumidification rotor.

      Also, the dry dehumidifier includes a dehumidification process in which the dehumidification rotor to which the dehumidification rotor coated with a dehumidifying agent such as silica gel or zeolite is rotated, the moisture of the air passing through the dehumidification rotor is adsorbed on the dehumidification rotor, The dehumidification rotor is dried and dehumidified through the dehumidification process to regenerate the dehumidification rotor. At this time, the dehumidifying rotor can continuously perform the regeneration process and continuously exhibit the dehumidifying power.

In addition, in order to smoothly perform the regeneration process, there is a disadvantage in that energy loss is large because the regeneration air needs to be heated by using a heating heater. In particular, the amount of moisture adsorption of the dehumidifying rotor is an amount of adsorption State, the regeneration process leads to more unnecessary energy loss.

1) is an invention relating to an auxiliary heat exchanger of a four-season heating / cooling system, which is registered in Patent Registration No. 10-0952518, wherein two flow paths intersecting with each other are provided so that outside air flows into one side flow path and moves to the room, An auxiliary heat exchanger is installed adjacent to a heat exchanger installed in a heating and cooling facility, and the auxiliary heat exchanger is connected to a water pipe on one side of the auxiliary heat exchanger. Cooling water of 1 ~ 18 ℃ is supplied through the cooling water supply pipe, so that the temperature of the air supplied to the room from the minimum 1 ° C to the maximum 3 ° C according to the temperature is lowered so that the operation of the air conditioner such as the air conditioner is minimized, The electric power consumption is reduced, and in particular, the electric power consumption by the dehumidification rotor or the heater In addition, by providing a hot water supply pipe at one side of the cooling water supply pipe and a branch valve at the same time, hot water is supplied to the inside of the auxiliary heat exchanger at the winter side, The present invention relates to an auxiliary heat exchanger in which the heating efficiency is improved. 2) discloses an apparatus and a method for hybrid operation of a regenerative heater, which is registered in Patent Publication No. 10-1064175. The regeneration temperature of the regenerative heater is adjusted according to various conditions to improve the dehumidification performance and the energy saving more efficiently The present invention also provides a hybrid driving apparatus and method for a regenerative heater. The hybrid operation apparatus of the regenerative heater includes an absolute humidity sensing unit for sensing the absolute humidity of air supplied to the dehumidification rotor, a dew point temperature sensing unit for sensing the dew point temperature of air returned from the dry room, A regeneration exhaust temperature sensing unit for sensing the temperature of the exhaust air, a regenerative heater operating at a regeneration temperature corresponding to the sensed absolute humidity, a comparison result between the sensed dew point temperature and the set value, a sensed regeneration exhaust temperature, And a control unit for controlling the regeneration temperature of the regenerative heater corresponding to the sensed absolute humidity and the regenerative temperature of the regenerated exhaust when the sensed regenerative exhaust temperature is higher than the set regenerative exhaust temperature range And a regeneration temperature of the regeneration heater set to correspond to the temperature And more particularly, to a hybrid operation apparatus and method for a hybrid vehicle.

The present invention is based on the technical characteristics of the dry type dehumidifier, so that a lot of economical energy loss occurs due to the operation of the regenerative heater and the cooling section during the year in order to remove the moisture of the dehumidification rotor. Therefore, the operation of the dry type dehumidifier is classified by season, Provides energy saving control system of smart dry dehumidifier that improves operation efficiency through breakthrough energy saving.

      In order to achieve the above object, the present invention provides an energy saving control system for a smart dry dehumidifier, comprising: a precooling unit for cooling incoming outside air; A return cooling unit that recirculates and cools some of the air discharged from the dryer; A dehumidification rotor for supplying the air discharged from the precooler unit and the return cooling unit through a supply fan and dehumidifying the dehumidified air; A rear end cooling part for cooling some of the air discharged from the dehumidification rotor in accordance with the temperature requirement of the drying room and a rear end heater for heating; A regenerative heater for receiving and heating some of the air discharged from the dehumidification rotor; And a regeneration fan that heats the air heated in the regeneration heater through a dehumidification rotor to perform dehumidification and discharges the air to the outside. A plurality of sensors are provided for each configuration, and the measured values and set values are compared and analyzed in real time, So as to promptly control it in advance.

      The central control unit of the present invention may be seasonally divided into a summer season, a season, a winter season, and a winter season.

      The present invention includes stopping the operation of the first and second cooling coils during the season of the season, winter 1, winter 2, and stopping the operation of the heater of the regenerative heater during winter 1.

      In the present invention, when the outside air appears as an abnormal climate phenomenon, the weather forecasting unit compares the predicted value 24 ~ 48 hours before and the set value of each season, and if it is determined that the weather phenomenon is abnormal, it first informs the manager and the management room, Prepare for the preliminary operation of the device, compare the predicted value of 2 ~ 3 hours before and the set value of each season at the day weather station, and if it is judged that the weather phenomenon is abnormal, emergency operation is notified to the manager and the management office, And switching to actual operation.

      In the present invention, when the measured values measured by a plurality of sensors are irregularly and intermittently displayed at intervals of 10 to 20% of the seasonally set values, it is notified to the manager and the management room in general, and the measured values are in a range of 10 to 20% , Emergency notification to the manager and the management office if the frequency of deviating from the center is measured twice or more per hour and continuously three times or more.

The present invention can be applied to a control system of any one of the above-described inventions, comprising: a first step of determining whether a measurement value measured and transmitted by each sensor corresponds to one of four seasons; A second step of determining whether the outside air is outside the seasonal set value and determining whether the outside air corresponds to an abnormal weather phenomenon and controlling the outside air; A third step of determining whether the measured value of each sensor is out of the limit value range of the set value and controlling the measured value; A fourth step of determining and controlling the cooling water circulation amount and the air temperature of each cooling coil according to seasonal characteristics; A fifth step of determining whether the regenerative heater is operated according to seasonal characteristics and controlling the regenerative heater; And control by the central control unit.

      The present invention can not control the temperature and humidity of the air supplied to the drier, thereby causing great economic loss and damage unless an abnormal climate phenomenon due to adverse environmental effects occurs. Energy savings and efficiency can be increased.

     In the present invention, in performing energy saving control for four seasons, the temperature and humidity of the cooling coil for controlling the cooling water circulation amount are controlled flexibly, the efficient heating and cooling operation is controlled by controlling the heating heater of the regenerative heater, Which contributes to energy saving as well as energy efficiency.

     In the present invention, when the extreme heat is higher than the set value in summer and the extreme cold is lower than the set value in winter 1, the outdoor unit operates a cooling coil or heater, which is a separate preliminary facility, before the inflow of the present invention, It is possible to minimize the burden and the damage to the system equipment and the apparatus of the present invention and to improve the efficiency by introducing the water after cooling and flowing the water after the winter 1 is heated to some extent.

In the present invention, when an abnormal weather phenomenon occurs, or when a measured value measured in real time by a sensor of each constitution deviates from a set value range (10 to 20% range), it is divided into general notification and emergency notification, It is possible to minimize the economic damage and maximize the efficiency by predicting the occurrence of the problem and taking countermeasures.

1 is a block diagram showing a conventional dry dehumidifier.
2 is a diagram showing an overall flow chart of the energy saving system of the smart dry type dehumidifier of the present invention
Figure 3 is a control flow diagram of an energy saving system of a smart dry dehumidifier of the present invention.
4 is a flowchart showing a stepwise control flow of the energy saving system of the smart dry type dehumidifier of the present invention.

       In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

       It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

       In addition, since each configuration shown in the drawings is arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

       1 is a block diagram showing a conventional dry dehumidifier.

      1, the dry dehumidifying device includes a prefilter 1, a process fan 2, a dehumidification rotor 3, a treatment zone 3-1, a regeneration zone 3-2, a regeneration prefilter 4, A regenerating heater 5, and a regeneration fan 6. [

      In the conventional dry / wet dehumidifier, when the outside air is drawn in, the pre-filter 1 removes foreign substances contained in the air and the foreign matter-removed air is supplied to the dehumidifying rotor 3 through the processing fan 2. At this time, the dehumidification rotor 30 continues to rotate at a constant speed. In the processing zone 3-1 of the dehumidification rotor 30, dehumidified air drawn from the outside is dehumidified and supplied to the dryer.

The regeneration air is supplied to the regeneration heater 5 by removing the foreign substances contained in the regeneration air through the regeneration prefilter 4. The regeneration heater 5 heats the regeneration air supplied to 180 ° C. to regenerate the regeneration heater 3 In the regeneration zone 3-2 after the water adsorbed by the regeneration rotor 3 is removed and then supplied to the regeneration zone 3-2. The regeneration air supplied to the regeneration fan 6 is discharged to the outside.

      2 is a view showing an overall flow chart of the energy saving system of the smart type dry type dehumidifier of the present invention.

      2, the pre-cooling unit 10, the return cooling unit 20, the air supply fan 30, the dehumidification rotor 40, the downstream cooling unit 50, the downstream heater 60, the regenerative heater 70, , And a regeneration fan (80).

     The pre-cooling unit 10 of the present invention serves to cool the outside air temperature to a predetermined temperature or lower. In addition to the primary and secondary cooling coils 11 and 12, the pre-cooling unit 10 is provided with a pre- However, in the present invention, the primary and secondary cooling coils 11 and 12 will be described.

    The pre-cooling unit 10 requires a large-capacity cooling coil unit to lower the outside air temperature to 9.8 to 10.1 ° C. However, in the case of a large-capacity cooling coil unit, the cost, area and energy consumption are large, The primary cooling coil 11 is cooled to 19.4 to 19.7 DEG C and the secondary cooling coil 12 is cooled to the secondary cooling coil 12. [ It is cooled to 10 ° C and supplied to the air supply fan.

    The primary cooling coil 11 circulates the cooling water in an amount of 1,160 LPM to cool and maintain the outside air temperature at 19.4 to 19.7 ° C. and the secondary cooling coil 12 circulates the cooling water in the amount of 391 LPM to adjust the air temperature to 9.8- Cool to 10.1 ℃ and keep.

     The primary cooling coil circulates a large amount of cooling water in order to cool the outside air temperature to 19.4 ~ 19.7 ℃ because it cools the air with the outside air and the high temperature difference. The secondary cooling coil has a degree of cooled air in the primary cooling coil It is cooled again to lower the air temperature to 9.8 to 10.1 ° C, and it is possible to circulate through a small amount of cooling water.

     The return cooling unit 20 recirculates part of the air discharged from the dryer to the return cooling unit 20 and reuses the return air. However, only the return cooling coil 21 will be described in the present invention.

     The return cooling unit 20 circulates the air discharged from the dryer to the cooling water of 309 LPM in the return cooling coil 21 to lower the temperature to 9.8 to 10.1 ° C. and supplies the cooled air to the air supply fan 30.

     Since the temperature of the air discharged from the drier is usually 14.5 to 15.2 ° C, it is possible to cool it to 9.8 to 10.1 ° C with a small amount of cooling water. Therefore, the cooling water of the return cooling coil 21 is circulated in an amount of 309 LPM, Cooled to 9.8 to 10.1 DEG C and supplied to the air supply fan (30).

     The air discharged from the pre-cooling unit 10 and the air discharged from the return cooling unit 20 are mixed and supplied to the air supply fan 30, and the air joins the air, It is also possible to additionally provide an air mixing unit for supplying the air to the air conditioning unit 40.

     The air supply fan 30 supplies the air discharged from the pre-cooling unit 10 and the return cooling unit 20 to the dehumidification rotor 40 while maintaining a constant pressure and speed at 37,400 CMH.

     The dehumidification rotor 40 dehumidifies the air supplied from the air supply fan 30. The dehumidification rotor 40 includes a dehumidification zone for dehumidifying the moisture in the humid air, a regenerative heater And a regeneration zone that serves to remove moisture adsorbed by the dehumidification rotor 40 through the air supplied from the regeneration heater 70. The dehumidification rotor 40 is divided into a purge zone And is rotationally driven.

     Some of the air discharged from the air supply fan 30 is supplied to the dehumidification zone of the dehumidification rotor 40 and is then supplied to the rear stage cooling unit 50 after moisture is removed, The moisture is removed from the zone, heated, and supplied to the regenerating heater 70.

     The temperature of the air supplied to the rear end cooling part 50 through the dehumidification rotor 40 is maintained at 27.8 to 28.1 ° C and the temperature of the air supplied to the regenerative heater 70 is maintained at 94.8 to 95.1 ° C.

     The rear end cooling part 50 may cool the air discharged from the dehumidification zone of the dehumidification rotor 40 to a predetermined temperature. The rear end cooling part 50 may include other components besides the rear end cooling coil 51 However, in the present invention, the rear end cooling coil 51 will be described.

     The rear end cooling coil 51 circulates the cooling water in an amount of 370 LPM from the air discharged from the dehumidification rotor 40 to maintain the air temperature at 15.3 to 15.6 ° C. and the air humidity is the air humidity discharged from the dehumidification rotor 40 1% or less.

     The rear heater 60 supplies the air to the dryer while maintaining the temperature of the air discharged to the rear stage cooling coil 51 at 15.3 to 15.6 ° C and a humidity of 1% or less.

     The regenerative heater 70 receives the air discharged from the purge zone of the dehumidification rotor 40, and supplies the air to the regeneration zone of the dehumidification rotor 40 by heating it to 180 ° C.

    Since the temperature of the air discharged from the regeneration zone of the dehumidification rotor 40 is maintained at about 94.8 to 95.1 ° C, the regenerated heater 70 is heated by 140 ° C to 150 ° C through a steam supply coil, However, since the heat source is insufficient for heating the air up to 180 ° C., heat of 30 ° to 40 ° C. is further heated through a separate heating heater to heat the air to 180 ° C. as a whole and to the regeneration zone of the dehumidification rotor 40 .

     The regeneration zone of the dehumidification rotor 40 removes moisture absorbed by the dehumidification rotor 40 through the heated air supplied from the regeneration heater 70.

    The regeneration fan 80 discharges the air discharged from the regeneration zone of the dehumidification rotor 40 to the atmosphere and discharges the air in an amount of 9,400 CMH. When the discharged air is much different from the ambient temperature It is possible to provide a separate cooling facility in addition to the regeneration fan 80 to lower the temperature to a predetermined temperature or lower and discharge the air to the atmosphere. Further, when a harmful chemical component is contained, a filter for filtering harmful chemical components is additionally installed to minimize environmental pollution Can also significantly reduce the environmental and human impacts.

Further, although not shown separately in the case of the measurement sensor in the present invention, the measurement sensor is generally installed at the entrance or exit of each structure.

      3 is a flowchart illustrating a control operation of the smart dry dehumidification system according to an embodiment of the present invention.

      3, the pre-cooling unit 10, the return cooling unit 20, the air supply fan 30, the dehumidification rotor 40, the downstream cooling unit 50, the downstream heater 60, A regeneration fan 80, and a central control unit 90.

       In order to efficiently control the energy saving control system of the smart dry type dehumidifier, the present invention is divided into four seasons.

      The central control unit 90 includes a pre-cooling unit 10, a return cooling unit 20, an air supply fan 30, a dehumidification rotor 40, a rear cooling unit 50, a rear heater 60, 70, a regeneration fan 80, and a measurement sensor installed at an inlet or an outlet, respectively, and are capable of mutually transmitting and receiving data transmission and control commands.

      The above four seasons are divided into three months from June to August, and from May to September and from October to October, using the statistical data of the Korea Meteorological Administration for the past 10 years. Winter 1 will be divided into three months from December to February, winter 2 to November and March to April.

      In addition, the reference value for the outside air condition was set for each step. In the summer, the outside air temperature was set to 38% and the humidity was set to 80% based on the maximum value. The average value of the open air temperature was set to 9.8 ~ 10.1 ℃ and the humidity was set to 90% In winter 1, the ambient temperature was set to -15 ℃ and the humidity was set to 41% based on the minimum value. In winter 2, the ambient temperature was set to 9.8 ~ 10.1 ℃ and the humidity was set to 55%. However, the reference setting may be adjusted to some extent depending on the ambient temperature or the surrounding environment.

      According to the seasonal reference value, it is required to follow the seasonal change and winter 2 standard at the temperature of 0 ~ 10.1 ℃, the summer standard at the temperature of 10.2 ℃ ~ 38 ℃ and the winter 1 standard at 0 ~ -15 temperature. In special circumstances beyond the limit of the value, comprehensive judgment based on the surrounding environment and conditions may be used as a basis.

     For reference, in the case of the heating coil in the cooling coil and the regenerative heater, or other auxiliary devices, the preheating is performed through the preliminary operation for 1 to 2 hours, and then it is switched to the actual system so that the preliminary time of 1 to 2 hours need.

     In the present invention, temperature and humidity are controlled objects, but temperature and humidity are generally proportional to each other.

     In the case of heaters, trailing coils, fans, or other auxiliary devices in cooling coils and regenerative heaters, additional equipment may be connected in parallel for failure and maintenance or replacement, and may be substituted for problems in the event of a problem.

     In addition, abnormal weather phenomena are occasionally caused by extreme heat in summer, extreme cold in winter 1, and seasonal changes in winter 2, and if you do not cope with abnormal weather phenomena, Because it can not control, it causes great economic loss and damage. Therefore, it is aimed to increase energy saving and efficiency by proactively coping with abnormal weather phenomenon.

     The present invention intends to divide the process of comparing, analyzing and controlling data in the intermediate language control unit 90 into two types. The first is to control when the abnormal weather phenomenon is predicted. The second is to control the case where the measured value deviates from the set value limit range by 10 to 20% by dividing into four seasons. And the temperature change of the outside air is defined as a value deviating from the plus or minus 30% range of the seasonal set value.

      First, as a control for the abnormal weather phenomenon, the weather and communication office receives the data (predicted value) and the data (predicted value) 2 to 3 hours before and 24 to 48 hours ago in real time and stores them in the central control unit 90, The central control unit 90 judges that an abnormal weather phenomenon occurs when the predicted value of 24 to 48 hours before the weather forecast deviates from the 30% range of the seasonally set value, and judges that there is an abnormal climate phenomenon, For the equipment, preparatory preparations for the spare unit are prepared, and the predicted value of 2 ~ 3 hours before and the set value of each season are compared with each other at the day of the day. The analysis result shows that the predicted value 2 ~ 3 hours ago deviates from 30% , The central control unit 90 judges that there is a real abnormal climate phenomenon and performs a preliminary operation on the reserve apparatus and then controls to switch to the actual operation.

      In case of the abnormal weather phenomenon, 24 ~ 48 hours predicted value and each seasonal setting value are compared with each other at the Meteorological Agency. If it is judged that the weather phenomenon is abnormal, firstly, the manager and the management office will be notified in advance and preparations for reserve operation If it is judged that there is an abnormal weather phenomenon as a result of comparison analysis between the predicted value of 2 ~ 3 hours before and the seasonal set value at the day weather station, the emergency operation is notified to the manager and the management office to perform preliminary operation of the reserve apparatus, do.

      The reserve unit for the preliminary operation and the main unit for actual operation are connected in parallel. When the main unit and the reserve unit need to be operated at the same time in consideration of the continuity or influence of the abnormal weather phenomenon, Or can be operated in parallel simultaneously for a certain period of time.

      However, in case of extreme heat of 38 ° C or more in summer and extreme cold of -15 ° C or less of winter 1, a cooling coil or a heater, which is a separate preliminary facility, is operated before the inflow of the present invention, And the winter season 1 flows after a certain degree of heating, thereby minimizing the burden and damage to the system equipment and the apparatus of the present invention, and improving the efficiency.

      The second is the control when the measured value deviates by 10 to 20% from the set range of the set value divided by 4 seasons. When the measured value deviates from the range of plus or minus 10 to 20% of the seasonally set value, And the central control unit 90 installs a sensor for each configuration, compares and analyzes the measured value measured in real time with the set value, and if the frequency deviates (deviates) from the set range irregularly or intermittently, In general notification, each cooling section adjusts the circulation amount of cooling water to raise or lower the air temperature to maintain a constant temperature corresponding to the reference set value. In the heater, the heating temperature of the heater is raised or lowered to the reference setting value The temperature is maintained at a predetermined temperature. In general, preparatory operation is prepared in the case of the reserve device.

      If the frequency at which the measured value deviates from the range of the set value (10 to 20% range) is measured twice or more per hour for three consecutive times or more, the central control unit 90 urgently informs the manager and the management room, , The preliminary operation is performed for the reserve device for the facility having the main unit and the reserve device such as the cooling part and the regenerative heater, and then the operation is switched to the actual operation.

      When the heating of the standby device is completed, the central control unit 90 actually operates for a predetermined time or a predetermined period. Otherwise, the central control unit 90 can operate simultaneously when the standby device and the standby device are connected in parallel, After the reserve device is running in parallel, if the measured value is stable in the set value range (10 ~ 20% range), it returns to the original state

      The host device may perform daily inspections or emergency inspections or replacements using the time during which the standby device is operated.

      The general notification and emergency notification may be displayed on the notification panel of the management room or on the manager's cell phone with a letter or a warning.

      In addition, the temperature and humidity sensor of the outside air is installed at the inlet of the pre-cooling section, and the sensor related to the cooling coil includes the temperature and the amount of cooling water at the outlet of the cooling coil (primary cooling coil, secondary cooling coil, return cooling coil, rear cooling coil) And the sensor related to the air supply fan and the regeneration fan is provided with an air quantity measuring sensor at the outlet of the air supply fan and the regenerating fan, a steam pressure sensor, a power sensor and a temperature sensor are installed at the outlet of the regenerating heater, A temperature sensor, a power sensor, and a humidity sensor may be provided on the part, and if necessary, the sensor may be installed at the inlet and the outlet at the same time.

      In the summer, since the outdoor air temperature is high and the humidity is high, cooling is performed in the primary cooling coil 11 of the pre-cooling unit 10 to 19.4 to 19.7 ° C and in the secondary cooling coil 12 to 9.8 to 10.1 ° C The cooling water is cooled to 9.8 to 10.1 ° C. and the cooling water is cooled to 15.3 to 15.6 ° C. so that the air temperature is maintained constant. 70) controls the outlet to maintain 180 占 폚.

       Therefore, in the summer, all the apparatuses and devices operate 100%, so the energy saving effect is little compared to other seasons. In the case of the rear cooling unit 50 and the rear heater 60, If a condition is presented for a separate special operation in the room, it is possible to change the air temperature to an appropriate temperature according to the condition or to change it within the limit value range flexibly.

      The air supplied from the outside air flows into the pre-cooling unit 10 while keeping the air in the outside air at 9.8 to 10.1 ° C and does not need to be operated in a separate cooling facility. Therefore, the primary and secondary cooling coils 11 And 12 are capable of maintaining the temperature of the air discharged from the dehumidification rotor 40 to 15.3 to 15.6 ° C (humidity 1% or less) even if the cooling operation is stopped and air is supplied to the dehumidification rotor 40, The air temperature of the rear stage heater 60 and the rear stage heater 60 can be maintained at 15.3 to 15.6 ° C (humidity 1% or less), and the rear stage cooling unit 50 and the rear stage heater 60 can be operated normally, The operating conditions of the rear end cooling section 50 and the rear end heater 60 can be flexibly changed and controlled.

       The dehumidification operation of the dehumidification rotor 40 is performed in the same manner as in the summer, since the humidity of the outside air of the season is maintained at about 9.8 to 10.1 ° C., The heating heater also operates normally so that the air is heated up to 180 ° C. and supplied to the regeneration zone of the dehumidification rotor 40.

       Therefore, unlike the summer season, the operation of the primary and secondary cooling coils 11 and 12 is stopped, but all the apparatuses and devices operate at 100% as in the summer, so that the energy saving effect is higher than in summer In the case of winter 2, it is possible to maintain the cooling rate of 15.3 to 15.6 ° C even when the cooling water is supplied in a circulation amount in comparison with the summer season or the seasonal change in relation to the cooling of the rear cooling unit 50, 2 is more energy efficient than summer, so energy efficiency is increasing.

       And the temperature of the regenerative heater 70 is maintained at a temperature of 140 to 150 degrees Celsius only through the steam supply coil without operating the heating heater even though the temperature of the regenerative heater 70 is maintained at about 50% The temperature of the regenerative heater 7 can be heated to 160 to 170 DEG C as a whole, since the temperature can be further increased to 20 to 30 DEG C even if the heating heater is operated at about 40 to 50% A sufficient dehumidification action can be achieved by supplying air at 160 to 170 DEG C to the regeneration zone of the dehumidification rotor 40. Since the operation of the heating heater can be flexibly adjusted in accordance with the surrounding environment and conditions, And efficiency can be improved.

       In the case of winter season 1, the air supplied from the outside air is kept at minus temperature of -15 ° C. and the relative humidity is low, so that no cooling is performed in the pre-cooling unit 10, And the air discharged from the pre-cooling unit 10 are mixed with each other and supplied to the dehumidification rotor 40.

       Also, the air mixing unit may be additionally provided so that the air of the pre-cooling unit 10 and the air of the return cooling unit 20 may be well mixed and supplied to the dehumidification rotor 40 regardless of the four seasons.

       The rear end cooling part 50 and the rear end heater 60 maintain the air temperature at 15.3 to 15.6 ° C (humidity 1% or less) regardless of the four seasons. The rear end cooling part 50 and the rear end heater 60 In order to maintain the constant temperature (15.3 ~ 15.6 ℃), the cooling coil of the rear cooling unit (50) controls the amount of cooling water circulation to operate at 370 LPM However, in winter 2, the humidity is relatively low and the circulation amount of the cooling water is controlled by 300 LPM. In winter 1, the humidity of the cooling water is the lowest, so that the circulation amount of the cooling water is controlled to 256 LPM (1% humidity or less) The effect of saving energy is increasing.

       In addition, the temperature and humidity of the outside air in the winter season 1 are very low, so that not only the start and stop of the primary and secondary cooling coils 11 and 12 but also the heating heater of the regenerative heater 70 are stopped, Since the air temperature can be heated to 140 to 150 ° C. through the steam supply coil, the moisture adsorbed by the dehumidification rotor 40 is removed only by the air heated to 140 to 150 ° C. in the summer The dehumidifying action effect equivalent to that is possible.

       In winter season 1 and winter season 2, the primary and secondary cooling coils 11 and 12 stop operating, while in winter season 1 the basic operation is stopped by stopping the operation of the heating heater 70. However, In the case where a special operating condition not described in the invention or a special condition for the drying room is suggested, it is preferable to control the operating control or the manual control in parallel.

 Therefore, the energy saving effect of winter 1 shows the highest efficiency among the four seasons. Some equipments and equipments operate 100% as in summer but unlike summer, the primary and secondary cooling coils (11, 12) It is possible to save energy by 30 to 40% compared with the summer time through the stoppage of the heating heater operation of the heater 70 and the decrease in the cooling water quantity of the downstream cooling section 50, so that a great synergy effect is increased in terms of energy efficiency as a whole .

       4 is a flowchart illustrating a stepwise control process of the smart dry dehumidifying system according to the embodiment of the present invention.

       Referring to FIG. 4, a first step 100 of determining whether a measured value transmitted from each sensor of the smart dry dehumidifying system corresponds to one of four seasons is shown. A second step (200) for judging whether the outside air is out of seasonal set values and determining whether the outside air corresponds to an abnormal weather phenomenon; A third step (300) of determining whether the measured value of each sensor is out of the limit value range of the set value and controlling it; A fourth step (400) for judging and controlling the cooling water circulation amount and the air temperature of each cooling coil according to seasonal characteristics; And a fifth step (500) for determining whether the regenerative heater (70) is in operation according to the seasonal characteristics and controlling the operation of the regenerative heater (70) by the central control unit (90).

       In the first step (100), it is determined whether the measured value measured by each sensor corresponds to which of the four seasons. In the case of the summer, all the devices are in full operation. And some devices should switch to full operation, so it is very important to determine what season the measured values correspond to.

       In the second step 200, the predicted value, the set value, and the measured value are compared and controlled when the outside air is judged to be an abnormal climate phenomenon by exceeding the seasonally set value. If it is judged to be an abnormal climate phenomenon, firstly, it will be notified to the manager and the management office in advance to prepare for preliminary operation of the reserve device according to the abnormal weather phenomenon, and the predicted value of 2 ~ If it is judged that there is a climatic phenomenon, emergency operation is notified to the manager and the management office, and the preliminary operation of the backup device is performed, and then the operation is switched to actual operation.

The third step 300 is to determine whether the measurement value is out of the limit value range of the set value in each sensor and to control it so that the measured value exists within the set range (10 to 20%) for each season, If the frequency deviates from the range of 10 to 20% of the value is displayed irregularly or intermittently, general notification is given to the manager and the management room. In this case, each cooling unit adjusts the circulation amount of the cooling water to set the air temperature at a predetermined temperature And the heater also adjusts the heating temperature to maintain a constant temperature corresponding to the reference setting value .

       In addition, if the frequency at which the measured value deviates from the range of the set value (10 to 20% range) is measured twice or more per hour and continuously three or more times, the manager and the management office are urgently notified, and each of the cooling units, And preliminary equipment, the preliminary operation may be preliminarily operated and preheated, and then the main unit and the reserve unit may be connected in parallel for a certain period of time or for a certain period of time.

      In the fourth step 400, the cooling water circulation amount and the air temperature of each cooling coil are determined and controlled according to seasonal characteristics. The return cooling coil maintains the cooling water circulation amount of 309 LPM regardless of the four seasons, And the rear cooling coil maintains the air temperature at 15.3 ~ 15.6 ℃ regardless of the four seasons. The primary cooling coil and the secondary cooling coil operate full during the summer, The temperature is maintained at the outside temperature.

      The primary cooling coil and the secondary cooling coil are set to be shut down except for the winter season. However, due to an abnormal climate phenomenon, when the outside air deviates 30% of the set value for a while or for a predetermined period, When the value deviates from the range of 10 to 20% of the set value, the preliminary operation and the actual operation are performed by adjusting the cooling coil and the regenerative heater of each configuration to the set value of each season.

      Regarding the control of the rear cooling coil, the air temperature should be maintained at 15.3 ~ 15.6 ℃ regardless of four seasons during the summer season and during the season of change. For this reason, the cooling water circulation volume should be 370 LPM due to the high humidity in summer and during the season, Temperature is maintained at 15.3 ~ 15.6 ℃ even if it is cooled to 260LPM in winter 1 and 300LPM in winter 2 because the relative humidity is low in winter 1 and winter 2, so the circulation amount of cooling water is set differently according to the season .

      The fifth step 500 determines whether or not the regenerative heater 70 is operated according to seasonal characteristics and controls the steam supply coil steam pressure of the regenerative heater 70 to be 260 kg / The air temperature of the regenerative heater 70 is maintained at 140-150 ° C. in winter and 180 ° C. in other seasons. In the case of the heating heater, the operation is stopped in winter and the heat of 140 kw is supplied in other seasons, 40) to remove moisture.

 In the case of the regenerative heater 70, it is possible to provide a heating temperature of 140 to 150 ° C in the steam supply coil throughout four seasons, and the heating heater can provide additional heating of 30 to 40 ° C except for winter 1, The dehumidifying rotor 40 performs dehumidification operation only at 140-150 ° C heat supplied from the steam supply coil in the winter state 1 and the dehumidification operation of the dehumidification rotor 40 in the winter state 1. In winter 2, Can be flexibly adjusted.

10: pre-cooling unit 11: primary cooling coil
12: secondary cooling coil 20: return cooling unit
30: air supply fan 40: dehumidification rotor
50: rear end cooling part 60: rear end heater
70: regenerative heater 71: heating heater
80: Playback fan
100: Step 1 200: Step 2
300: Step 3 400: Step 3
500: Step 5

Claims (6)

A precooling unit for cooling the introduced outside air;
A return cooling unit that recirculates and cools some of the air discharged from the dryer;
A dehumidifying rotor for dehumidifying the air discharged from the pre-cooling unit and the return cooling unit through the air supply fan;
A rear end cooling part for cooling some of the air discharged from the dehumidification rotor in accordance with the temperature requirement of the drying room and a rear end heater for heating;
A regenerative heater for receiving and heating some of the air discharged from the dehumidification rotor;
And a regeneration fan for passing the heated air through the regeneration zone of the dehumidification rotor to remove moisture adsorbed on the dehumidification rotor and discharging the exhausted air to the outside,
A plurality of sensors are installed for each configuration, and the measured values and the set values are compared and analyzed in real time to notify the central control unit so that they are quickly controlled in advance, and the central control unit is divided into summer, The first and second cooling coils installed in the precooling unit stop operating and the heating heater of the regenerative heater is stopped during the winter season 1,
If the outside air is shown as an abnormal climate phenomenon, it is compared with 24 ~ 48 hours predicted value and each seasonal setting value at the meteorological office. If it is judged that the weather phenomenon is abnormal, first, it is notified to the manager and the management room in advance, Prepare for preliminary operation and compare two to three hours predicted value and each seasonal set value at the corresponding day weather station. If it is judged that the weather phenomenon is abnormal, emergency management is notified to the manager and the management office to perform preliminary operation of the reserve device, , ≪ / RTI >
The pre-cooling unit includes primary and secondary cooling coils. In the summer, the primary cooling coils are cooled to 19.4 to 19.7 ° C, the secondary cooling coils are cooled to 10 ° C, and the pre-cooling unit and the return cooling unit Wherein the air mixing portion is installed at a portion where air is merged.
delete delete delete Claim 1
If the measurement values measured by the plurality of sensors deviate from the range of 10 to 20% of the seasonally set value irregularly and intermittently, it is notified to the manager and the management room in general, and the measured value deviates from 10 to 20% Of the smart dry dehumidifier, which includes emergency notification to the manager and the control room if the frequency is measured two or more times per hour and three or more times in succession.
The method according to any one of claims 1 to 5, further comprising: a first step of determining in which of four seasons the measurement value measured and transmitted by each sensor corresponds; A second step of determining whether the outside air is outside the seasonal set value and determining whether the outside air corresponds to an abnormal weather phenomenon and controlling the outside air; A third step of determining whether the measured value of each sensor is out of the limit value range of the set value and controlling the measured value; A fourth step of determining and controlling the cooling water circulation amount and the air temperature of each cooling coil according to seasonal characteristics; A fifth step of determining whether the regenerative heater is operated according to seasonal characteristics, and controlling the regenerative heater in a centralized control unit.

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