】 【Weak current College on five-star hotel in the building automation design.

<br> Description: Describes the common building automation design and five-star hotel building automation design characteristics, building automatic control system and other subsystems, and raised on a number of important device only prison does not control concept. <br> Keywords: five .-star hotel building automation design <br> With China's accession to the WTO and the 2010 Shanghai World Expo, Shanghai will host a large number of visitors from all over the world-business representatives and tourists. At present, five-star hotel owned by .both in quantity and in quality, has a gap, the next few years a large number of Shanghai will be a new five-star hotel to fill this gap. Hotel smart is a measure of star standard is an important indicator, five-star hotel .of intelligent control in addition to the usual common building automation design also has its characteristics. The authors combine formal adoption has been completed and a smart building review Super five-star hotel: a heritage of hongta hotel, as well as just designing complete five- .star hotels-West Lake hotel's design example, talk about the five-star hotel building automation design and ideas. <br> <br> Five-star hotel of intelligent control system should have three basic functions: independent control, supervision and control and information .management. Constitute the system hard parts are: communication network, LAN Ethernet, large modular intelligent controller and the small smart LonWorks controller, action stations, information, and report to the printer, the network Terminal, etc. Its main software features include: summary .(various reports listing), password protection, user programming (graphical programming language), status change report, alarm information reports, report grouping / alarm management, monitoring and control points history, dynamic trend analysis, cumulative, statistics, database, download / upload .feature, a graphical based on MicrosoftWindows and action stations work environment and energy management control, time intended function, equipment circulation restart / stop protection, major device restart / shutdown delay, supply recovery startup programs, consumption limit / load cycle, etc. <br .> <br> 1 air conditioning system monitoring <br> <br> This section is five-star hotel is an important part of building automation. Air conditioning system most devices running it from the central monitoring system to monitor and control. Its way to .centrally monitor, onsite decentralized control, the so-called distributed control. <br> <br> 1.1-star hotel and General Hotel air-conditioning system design of common parts of the monitoring <br> <br> 1.1.1 freezer a cooling .water system monitoring <br> <br> The hotel's cold source system typically consists of the refrigeration unit, frozen water pumps, cooling towers, cooling water pump, expansion tank, pressure differential bypass, etc, from the central monitoring system to monitor the status .of all devices work, and by the freezing room onsite controller (DDC) for the following controls: <br> <br> A £ ® by internal prewritten time program or use Central Administration to the operator, to start UNTIS and all related equipment ( .cooling towers, cooling water pumps, water pumps, electric butterfly valve freezing) of interlocking control. <br> <br> B according to the temperature and the backwater for / back into the flow of product decision refrigeration unit start number. <br> .<br> C £ ® through the frozen in the engine field controller (DDC) and scene detection, detection of frozen water system for / return water mains voltage corresponds to the control of the opening of the by-pass valve to maintain the appropriate pressure .and ensure the normal operation of the air-conditioning system. <br> <br> D according to cooling water for the regulation of temperature, water / cooling water by-pass valve, to change the temperature of the cooling water supply to ensure that .freezer started. <br> <br> E., winter plate heat exchanger to conserve and use energy. Open the valve plate heat exchanger, and on the basis of the plate heat exchanger water inlet temperature regulating valve to open degree, achieve control requirements .. <br> <br> 1.1.2 hot water system monitoring <br> <br> The hotel's water system by boiler, boiler feed pumps, steam-water heat exchanger, heat pumps, etc, from the central monitoring system to monitor the .work of the State of each device, and from the field controller (DDC) for the following controls: <br> <br> A £ ® according to the temperature and the backwater for / back into the flow of product decision heat exchanger used in .number. <br> <br> B £ ® according to the heat exchanger water temperature adjustment steam valve opening. <br> <br> C £ ® according to the household fuel tank oil level interlocking control pump stops. <br> <br .> 1.1.3 new fan system monitoring <br> <br> The hotel uses four pipe cooling / heating-coil system air supply unit from the central monitoring system to monitor the status of all devices work, and the fresh air in the engine field .controller (DDC) and field testing of components, do the following: <br> <br> A £ ® by internal prewritten time program or use Central Administration to operator-initiated after the control inputs of fan. <br> <br> B .£ ® fan starts, at the same time open for fresh air ventilation system; received Frost alarm signals, while closing the fresh wind gate. <br> <br> C £ ® according to the air temperature and set the value of the deviation, .PI control to adjust the cold and hot water backflow valve electric II's opening. <br> <br> D according to rheumatism and set the value of the deviation, control of steam valve switches to control requirements. <br> <br> 1.1. .4 air conditioner system monitoring <br> <br> The hotel uses four pipe cooling / heating-coil system, its full air conditioning unit (AHU) by the central monitoring system to monitor the status of all devices work, and through the air conditioning .room onsite controller (DDC) and field testing of components, do the following: <br> <br> A £ ® by internal prewritten time program or use Central Administration to operator-initiated after the control inputs of fan. <br> <br .> B £ ® according to the return air temperature and set the value of the deviation, PI control to adjust the cold and hot water backflow valve electric II's opening. <br> <br> C £ ® according to the fresh air temperature andFresh air .humidity calculation of outdoor air enthalpy capacity to control fresh air, air, exhaust valve to open degree, and through constant airflow control enables constant fresh air. <br> <br> 1.1.5 rushed, exhaust fan system monitoring <br> <br .> The partial delivery, fan control is divided into two kinds, one belongs to fire fan, fan and stopping control by the fire alarm control system. Another class belongs to the normal fan, fan and stopping control can be used by managers to manual control ., or by regional controller (DDC) at a pre-determined time program automatic control. But the second type of fan work state back to a central monitoring system. <br> <br> 1.1.6 fan coil unit supervision <br> < .br> Under room temperature-regulating valve (Winter / Summer Festival conversion) through the site manually or in the central control room three-speed switch control air flow, set your temperature to control air blower plate Tube motor start and cold and hot water backflow .valve electric II's opening. <br> <br> 1.2-star hotel that distinguishes it from other building air-conditioning system monitoring features section <br> <br> Guests of the comfort requirements for Sep-star hotel is very strict. For example ., a little senses guests do not apply, drying the air humidity is insufficient; or guests to feel the cold in the swimming pool, and restaurant feel the heat, it just goes to show the location of the hotel interior temperature did not meet expectations, .would not be in keeping with the five-star standards, etc. But at the same time as a result, the device may be long-running, the consumption of energy will also be quite serious. Therefore, in a five-star hotel in .this class requires relatively high buildings, electrical and mechanical control is valid, whether or not energy efficiency is a measure of hotel intelligent an important indicator. The following describes how to implement. <br> <br> 1.2.1 VAV-box (with .VAVBox) system monitoring <br> <br> The type of frequency conversion air handling unit (with VAVBox) to install a fresh air inlet CAV (constant air flow valve) controller, by the central monitoring system to monitor the status of all devices work ., and through the VAV-box in the engine field controller (DDC) and field testing of components, do the following: <br> <br> A £ ® by internal prewritten time program or use Central Administration to operator-initiated after the control .inputs of fan. <br> <br> B £ ® to ensure the Terminal Air Purifiers degrees, according to the measurement of beacon managed pressure value, to calculate the appropriate amount of wind, and setting a value comparison, adjust the throttle of the .opening. <br> <br> C £ ® according to the return air temperature and set the value of the deviation, PI control to adjust the cold and hot water backflow valve electric II's opening. <br> <br> D £ ® VAV .control, that is, according to the system of VAVBox air valve to open degree through data communications, enables the scene to controller (DDC) determines that the system air flow breakeven, directive converter sync air-conditioning box (AHU) air and back to .the wind, the guarantee to meet all requirements for air volume VAVBox, maintain a minimum pressure of air conditioning systems. <br> <br> E-air handling unit (AHU) stopped working water control valve, the interlocking off fresh air control valve ., air handling unit (AHU) starting off fresh air control valve for cooling operation. <br> <br> 1.2.2VAVBox VAV control <br> <br> VAVBox VAV from central monitoring system to monitor the status of all devices work, and .by the VAVBox VAV controller on the site and site monitoring components, do the following: <br> <br> A £ ® by internal prewritten time program or use Central Administration to operator-initiated after the control inputs of fan. <br> < .br> B adopt pressure-independent control, depending on the room temperature and set values, calculated from the difference in temperature and velocity and determination required to compare the flow rate, by calculating the adjustment damper. <br> <br> C. VAVBox .is closed, the interlocking off air valve. <br> <br> 2 distribution system monitoring <br> <br> The part of the equipment due to its five-star hotel of electromechanical equipment in importance and particularity, design we made only prison .does not control concept, ie the central control system only on the supply and distribution system for monitoring the status of the device, and not directly manipulate the supply and distribution systems and stopping points of each device. <br> <br> 2.1 distribution system .monitoring <br> <br> The hotel's distribution system consists of high-voltage switchgear, transformers, low-voltage switch cabinet, low-voltage emergency switch cabinet, DC Panel, etc, from the field controller (DDC) monitor the work of the .State of each device: ① all high-, low-voltage switch work status; ② all high-, low-voltage switch failure trip status; ③ the high and low pressure switches undervoltage trip status; ④ low-pressure incoming cabinet and contact Cabinet .-phase current telemetry; ⑤ low voltage ½ øïßthe Cabinet liaison; three-phase voltage-telemetry ⑥ low-pressure ½ øïßthe Cabinet frequency telemetry and liaison; ⑦ low-pressure ½ øïßthe Cabinet power telemetry and liaison; ⑧ consumption telemetry; ⑨ transformer ultra-high temperature .alarm; ⑩ comprehensive fault alarm. <br> <br> 2.2 generator system monitoring <br> <br> Five-star hotel because of its importance of electric load, the RD AC power as power supply, on the basis of commonly used, .you must also set the emergency diesel generator as a third road, standby power, and consists of onsite controller (DDC) monitor the following working condition: ① ② generator running; generator battery voltage telemetry; ③ three-phase voltage telemetry; ④ three- .phase current telemetry; ⑤ frequency telemetry; ⑥ generator fault alarm. <br> <br> 3 water supply and sewerage system monitoring <br> <br> Five-star hotel and drainage systems generally consist of cistern, living the life water pumps, .water tanks, water treatment equipment, hot water circulation pump, pump, sewage disposal equipment, etc. Regional controller (DDC) monitor and control the equipment State. <br> <br> 3.1 monitor the following equipment of various States <br> < .br> ① cistern high / low water level alarm; ② hygieneLive tank high / low water level alarm; ③ living water pump running; ④ living water pump failure alarm; ⑤ living water treatment equipment operation; ⑥ living water treatment equipment fault alarm; ⑦ .hot water circulation pump running; ⑧ hot water circulation pump failure alarm; ⑨ catchments in high and low liquid alarm; ⑩ drainage pump running; 11) pump failure alarm; 12) sewage treatment equipment operation; 13) sewage treatment equipment fault alarm. < .br> <br> 3.2 control these devices <br> <br> ① high or low water levels, according to the cistern closed or open the corresponding life pump; ② according to the level of water catchments, open or close the corresponding drainage pump .. <br> <br> Water supply and drainage systems in water treatment and sewage treatment equipment operation and control by the manufacturer Dingbat negative control system complete, only the equipment operation and failure alarm information is passed to the hotel's building automatic control system. < .br> <br> 4 some visions and proposals <br> <br> These three main system direct control by the BA, of course, a five-star hotel there are other independent subsystem, after several years of design, commissioning, operation, .draw some ideas and suggestions. <br> <br> 4.1 building automatic control system and other relationships between the mechanical and electrical systems <br> <br> Five-star hotel within other electro-mechanical system, such as fire alarm systems, security .systems, elevators, lighting dimming control system, flood lighting system, air barrier light system, parking systems, IC card system, and so should be used as a subsystem into building automatic control system, but the various subsystems of work should be completed by its .own. Building automatic control system and other subsystems are available through the communication interface between mutual networking, the use of a unified communication protocol, the prior agreement of the other subsystems of the major events in response to the building automation system, the five-star .hotel in the mechanical and electrical equipment, the system into a clear organic whole, unity, and orderly processing of various daily or unexpected event, in all cases are safe, efficient and stable operation. <br> <br> The prison is not charged .only 4.2 <br> <br> Building automatic control system in the face of the entire five-star hotel in all the electromechanical equipment, set the building automation system was designed so that all the electromechanical equipment in safety and reliability of the orderly completion of .their work, and to achieve energy savings, increase equipment lifespan. Here, the author considers the safety and reliability are the most important, such as for supply and distribution system equipment, lift system equipment, building automatic control system of work should be the only .prison does not control. That is when the system equipment failure, building automatic control system's role is to identify problems and alert, and specifically how to handle should be building automation centre managers or onsite on duty according to the actual situation. Because the computer cannot .be equated with a brain and, after all, sometimes building automatic control system and do not necessarily accurately determine equipment failure causes and provide the correct solution, if mishandled, can result in five-star hotel in the guest's panic, and lead to greater losses .. <br> <br> 5 conclusion <br> <br> Currently building BA control focused only on the air conditioning system of monitoring, or present many buildings only. While the five-star hotel in the mechanical and electrical system as a subsystem .into building automatic control system design, as well as some important electromechanical equipment only to administer the concept is not controlled by Shanghai duragesic hongta hotel opened for business running two years proved to be very effective, not only saving building automatic control system of the initial investment .cost and improved building automatic control system operation safety and reliability. Hope for colleagues in the next five-star hotel in the building automation system design. <br> <br>.