解读酒店中央空调体系的装备.doc

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解读酒店中央空调体系的装备

Hotel central air conditioning system equipment

广州景星酒店是一座三星级旅行涉外酒店，酒店坐落广州林和西路，有各类客房100多间，酒店大楼内设有三星级酒店、高档写字楼、商场和娱乐场所，是广州市早期酒店之一。酒店中央空调全年运转280天左右，每天均匀运转时刻在14～22小时左右，中央空调体系年均匀总耗电约160万kWh，电费开销172万元左右。该大厦冷冻水泵和冷却泵电机全年恒速运转，冷冻水和冷却水进出水温差都约为3℃ ，选用继电接触器操控。

Guangzhou travel JingXing hotel is a three-star foreign-related hotels, the hotel is located in guangzhou and west road, there are all kinds of more than 100 rooms, the hotel building with three star hotel, high-grade office buildings, shopping malls and entertainment venues, is one of the early hotel in guangzhou. Hotel central air conditioning running 280 days all the year round, even running time is 14 ~ 22 hours a day or so, central air conditioning system in uniform always consumes about 1.6 million kWh, electricity costs 1.72 million yuan. The building chilled water pumps and cooling pump motor for constant speed operation, and chilled water and cooling water in and out of the water temperature difference is about 3 ℃, selects relay contactor control.
中央空调是大厦里的耗电大户，约占建筑物总电能耗费的60%。因为中央空调体系描绘时必须按气候最热、负荷最大时描绘，而且留 10-20% 描绘余量，但是实际上绝大部分时刻空调是不会运转在满负荷状态下，存在较大的充裕，所以节能的潜力就较大，其间，冷冻主机能够依据负载改变随之加载或减载，冷冻水泵和冷却水泵却不能随负载改变作出相应调理，存在很大的糟蹋，因而中央空调的节能改造显得尤为重要。

The central air conditioning is the power draw of the mansion, accounts for about 60% of the total energy cost of buildings. Paint for central air conditioning system must be according to the hot climate, load the biggest, with a 10-20% allowance, but in fact most of the time air conditioning is not operating under full load condition, there is a big of abundant, so energy saving potential is bigger, meanwhile, frozen host according to the load changes with the loading or unloading, frozen water pump and cooling water pump but not recuperated with load change accordingly, there are a lot of abuse, and central air-conditioning energy saving transformation is particularly important.

酒店中央空调体系的装备如下： 　　

Hotel central air conditioning system equipment is as follows:

冷水机组：中央空调体系选用两台（一用一备）开利水冷冷水机组，单机制冷量为400USRT，电动机功率为300KW。冷冻水泵：冷冻水泵两台（一用一备），电动机功率为55KW，电机发动方法为自耦变压器发动。冷却水泵：冷却水泵两台（一用一备），电动机功率为75KW，电机发动方法为自耦变压器发动。

Chiller: central air conditioning system is made of two table (one with a prepared) carrier, water chiller unit refrigerating capacity is 400 usrt, motor power 300 kw. Frozen water pump, chilled water pump two (one with a prepared), of 55 kw motor power, motor start method for auto-transformer. Cooling water pump, cooling water pump two (one with a prepared), power of 75 kw electric motor, electric motor method for auto-transformer.

中央空调体系节能中存在的疑问剖析，该大厦中央空调体系的最大负载才能是依照气候最热，负荷最大的条件来描绘的，存在着很大宽余量，但实际上体系很少在这些极限条件下作业紫叶李，一年中只要几十天时刻中央空调处于最大负荷。大厦原中央空调水体系除了存在很大的能量损耗，一起还会带来以下一系列疑问： 　　

Questions that exist in the central air conditioning system energy saving analysis, the building central air conditioning system in accordance with the hot weather, is the biggest load to load the biggest conditions to portray, there is a very wide margin, but in fact system under the condition of the limit homework rarely, as long as a few days time of the year the central air conditioning in the biggest load. Building the original central air conditioning water system in addition to significant energy loss, will also bring the following with a series of questions:

传统的水泵起、停操控不能实现软起、软停，在水泵起动和中止时，会呈现水锤表象，对管网形成较大冲击锅炉省煤器，简单对机械零件、轴承、阀门、管道等形成损坏，添加修理作业量和备件费用。为使循环水量与负荷改变相适应三轮汽车，选用老练的变频调速技能对循环体系进行改造，是下降水循环体系能耗的较好解决方案。

Traditional pumps, stop control can not realize soft starting and soft stop, when the water pump start and stop, can present water hammer appearance, serious impact on the formation network, simple for machinery parts, bearings, valves, pipes, such as formation damage, add the repair work and spare parts cost. Adapted for the circulation of water and load change, choose sophisticated frequency control skills of the circulation system reform, is falling water cycle system energy consumption is a better solution.

水流量过大使循环水体系的温差下降，恶化了主机的作业条件、导致主机热交换功率下降，形成额定的电能丢失生态带。水泵选用自耦变压器发动起动，电动机的起动电流较大，会对供电体系带来必定冲击。 　　

Reduced water flow too ambassador temperature difference of circulating water system and the host operating conditions, resulting in a decline in host heat power and form a rated power lost. Pump selection autotransformer starter, motor starting current is larger, the power supply system must have impact.
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