龙华资讯

冰蓄冷空调的推广有助于降低温室效应

浏览次数:  发布时间:2019-11-25 22:08:06

  冰蓄冷技术的诞生,是人类能源开发与利用的又一场革命。冰蓄冷利用电网峰谷之间的差异来平衡电网使用效率,用户投入较低的费用,便保证白天的空调供冷需求。这项技术是上世纪初在美国研制并开始应用,但开始并不普及。直到八十年代世界性的能源危机,冰蓄冷的节能优势才被世人所瞩目,而得到广泛的推广使用。日本能源贫乏,冰蓄冷的市场颇好。我国从九十年代开始引进冰蓄冷技术,并被列入国家级火炬计划,全国现有几百家单位在使用。其中,重庆啤酒厂半年节约运行费用近百万元的案例是比较突出的。

  空调制冷大市场专家介绍,所谓冰蓄冷空调区别于传统制冷系统就是多了蓄冷功能。一般制冷系统在夏季开启后制冷便转换成冷风走中央空调送入各区域;而冰蓄冷则是在晚上开启,通过制冰、蓄冰,在白天融冰放冷,达到不开或者少开制冷系统依然能实现供冷的作用。冰蓄冷一般有冰盘管式、封装式、冰晶式、桶式蓄冰、冰片滑落式。

  冰蓄冷的优势主要体现在利用电价差来实现节省资金、达到供冷要求。实际上国家的电力是处于供应紧张的状况,有些省市不得不拉闸限电。而电能的发、供、用是同时同步的,发出来的电是不能储存的。我国电力紧张的城市都是白天电力紧张,晚上电力宽松。夜间的电力都是过剩的晚上没有用户用电,发出来的电就白白浪费了。为此国家和各地区就采取了峰谷电价政策,即削峰添谷;核心就是白天用电价格高,晚上用电价格低。

  2010年11月,国家发改委等六部委联合发文,针对电力需求提出了管理和激励措施,其中就有“将推动并完善峰谷电价制度,鼓励低谷蓄能”等要求。可以说,峰谷电价差价越大,经济效益越显著。

  同时冰蓄冷空调系统可以减小附属设备的容量或者功率,减少了设备投资费用。例如在杭州某商务大厦,建筑面积约16万平米,按照常规需要四台冷冻机、五组冷却塔,由于采用冰蓄冷系统,只安装三台冷冻机、四组冷却塔。冰蓄冷空调系统可以用于新建工程,也适合与改扩建工程;原有空调系统不能满足负荷要求,需要扩大负荷,可以不增加主机,改成冰蓄冷即可。

  由杭州龙华环境集成系统有限公司自主研发的整装式蓄冰设备在实际应用中,经过权威部门认定,比传统空调节能40%以上,达到国际领先水平。这也为降低费用,全面推开冰蓄冷空调打下良好的基础。暖通权威专家认为,冰蓄冷空调运用广泛,有较大的市场潜力,适合宾馆饭店、候机、候车厅、体育馆、影剧院等。更重要的是冰蓄冷比一般空调系统减少了二氧化碳和烟尘排放量,降低了全球温室效应,对环保有重大意义。
The birth of ice storage technology is another revolution of energy development and utilization. Ice storage USES the difference between peak and valley of the power grid to balance the efficiency of the power grid. The low cost of the users ensures the demand for air conditioning cooling during the day. The technology was developed and used in the United States at the beginning of the last century, but was not popular at first. It was not until the global energy crisis in the 1980s that the energy-saving advantages of ice storage were noticed by the world and widely used. Japan is energy-poor and has a good ice-storage market. China began to introduce ice storage technology in the 1990s, and has been included in the national torch program, there are hundreds of units in use. Among them, chongqing brewery half a year to save operating costs of nearly one million yuan case is relatively outstanding.



The air conditioning refrigeration big market expert introduction, the so-called ice cold storage air conditioning is different from the traditional refrigeration system is more cold storage function. General refrigeration system in summer after the opening of refrigeration will be converted into a cold air through the central air conditioning into each area; Ice storage is opened at night, through making ice, ice storage, melting ice in the daytime cooling, achieve not open or less open refrigeration system can still achieve the role of cooling. Ice storage generally has ice coil tube type, encapsulation type, ice crystal type, bucket type ice storage, ice slide type.



The advantages of ice storage are mainly reflected in the use of electricity price difference to save money and meet the cooling requirements. In fact, the country's electricity supply is in a tight situation, some provinces and cities have to switch off power rationing. However, the generation, supply and use of electric energy are synchronous, and the electricity emitted cannot be stored. The city that our country electric power is tight is daytime electric power is tight, electric power is loose at night. Electricity at night is a surplus. There is no consumer electricity at night. For this reason the country and each area adopted peak valley electricity price policy, namely cut peak add valley; The core is that electricity prices are high during the day and low at night.



In November 2010, six ministries and commissions, including the National Development and Reform Commission, jointly issued a paper proposing management and incentive measures for electricity demand, including the requirement that "we will promote and improve the peak and valley electricity price system and encourage energy storage in the valley". Can say, peak valley price difference is bigger, economic benefit is more significant.



At the same time, the ice storage air conditioning system can reduce the capacity or power of the auxiliary equipment and reduce the equipment investment cost. For example, in a business building in hangzhou, the building area is about 160,000 square meters. According to the general requirements, four refrigerators and five sets of cooling towers are needed. Due to the use of ice storage system, only three refrigerators and four sets of cooling towers are installed. Ice storage air conditioning system can be used in new projects, also suitable for renovation and expansion projects; The original air conditioning system can not meet the load requirements, need to expand the load, can not increase the host, change into ice storage.



The integrated ice storage equipment independently developed by hangzhou longhua environmental integration system co., LTD has been confirmed by the authorities to be more than 40% more energy efficient than traditional air conditioners in practical application, reaching the international leading level. It also lays a good foundation for reducing the cost and pushing forward the ice storage air conditioner. Hvac authority experts believe that ice storage air conditioning is widely used, has greater market potential, suitable for hotels, waiting rooms, waiting rooms, stadiums, theaters, etc. More importantly, compared with the general air conditioning system, ice storage reduces carbon dioxide and soot emissions, reduces global greenhouse effect, and is of great significance to environmental protection.

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