为了进一步加强煤矿安全生产工作，全面提升煤矿安全保障能力，根据《国家安全监督总局国家煤矿安监局关于建设完善煤矿井下安全避险“六大系统”（指检测监控系统、井下人员定位系统、紧急避难系统、压风自救系统、供水施救系统和通信联络系统）的通知》，在2012年6月底前，所有煤（岩） 与瓦斯（二氧化碳）突出矿井，中央企业和国有重点煤矿中的高瓦斯、开采容易自然煤层的矿井，要完成紧急避险系统的建设完善工作；2013年6月底前，其他所有煤矿要完成紧急避险系统的建设完善工作。

      In order to further strengthen coal mine safety production and comprehensively improve coal mine safety assurance capabilities, according to the “Six systems” (referring to the detection and monitoring system, underground personnel positioning system, Emergency Evacuation System, Pressure Air Self-rescue System, Water Supply and Rescue System and Communication and Liaison System). Before the end of June 2012, all coal (rock) and gas (carbon dioxide) outburst mines, central enterprises and key state-owned coal mines Mines with high gas content and natural coal seams that are easy to mine must complete the construction and improvement of the emergency avoidance system; before the end of June 2013, all other coal mines must complete the construction and improvement of the emergency avoidance system.

 · 相变材料概述

         Overview of Phase Change Materials

   相变材料定义（Definition of phase change material）

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      相变材料（PCM-Phase Change Material）是指随温度变化而改变物理状态并能提供潜热的物质，其通过改变物理状态从外界吸收或向外界放出大量的热量，以此来达到对周边环境温度的影响和控制。

       Phase change material (PCM-Phase Change Material) refers to a substance that changes its physical state with temperature changes and can provide latent heat. By changing its physical state, it absorbs or releases a large amount of heat from the outside world to achieve the temperature of the surrounding environment. Influence and control.

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      我司相变材料采用非常稳定的强酸强碱盐，其化学性能稳定，通过物理状态的变化来蓄能制冷并应用于避难硐室内。相变材料的应用研发在我国已经列为*********研发利用序列，将成为温控领域的******绿色节能温控载体。

      Our phase change materials use very stable strong acid and strong alkali salts, with stable chemical properties. They can store energy for refrigeration through changes in physical conditions and apply them to refuge chambers. The application R&D of phase change materials has been listed as a national R&D utilization sequence in my country, and will become the best green energy-saving temperature control carrier in the field of temperature control.

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· 避难硐室相变制冷方案

     Phase change refrigeration scheme for refuge chamber

     ·相变材料用量计算

     · Calculation of the amount of phase change material

   人体平均功率大约为200W，睡觉和看电视时大约为75W，平均每个人24小时代谢水平为11.88MJ，按照相变材料的潜热为350KJ/KG，每天需要约34KG相变材料，4天则需136KG，按照硐室涉及人数来确定相变材料用量。

   The average power of the human body is about 200W, while sleeping and watching TV is about 75W, and the average 24-hour metabolic level of each person is 11.88MJ. According to the latent heat of the phase change material is 350KJ/KG, it needs about 34KG phase change material per day, and it takes 4 days. 136KG, according to the number of people involved in the chamber to determine the amount of phase change material.

        ·  现行主流的相变制冷方案 

        · Current mainstream phase change refrigeration scheme

· 自然水冷相变储能袋

    · Natural water-cooled phase change energy storage bag

      如井下环境温度适宜或井下用水温条件适宜（<24℃），可将铝箔袋装相变材料，装入金属箱体内，摆放在避难硐室中，平时采用风冷或水冷技术使相变材料处于结晶状态。

      If the underground environment temperature is appropriate or the underground water temperature conditions are appropriate (<24℃), the phase change material can be packed in aluminum foil bags, put into the metal box, and placed in the refuge chamber. Air-cooled or water-cooled technology is usually used to make the phase change. The material is in a crystalline state.

· 挂帘式相变储能片

     · Curtain type phase change energy storage film

     挂帘式相变储能片解决了在救生硐室内长期存储、释冷速度和安装空间的问题。采用挂帘式，可依据硐室生存长度和两侧直立墙壁的高度来设计之家尺寸，采取垂直双重双层或多层安装，随意移动，占用面积小，双面吸热，吸热面积0.039㎡。

      The curtain type phase change energy storage film solves the problems of long-term storage, cooling speed and installation space in the rescue chamber. With curtain type, the size of the house can be designed according to the living length of the chamber and the height of the upright walls on both sides. It adopts vertical double-layer or multi-layer installation, which can be moved at will, occupying a small area, double-sided heat absorption, heat absorption area 0.039 ㎡.

· 相变降温服（Phase change cooling suit）

    一套相变降温服：一件阻燃防静电马甲 + 一套相变冰袋。

   A set of phase change cooling suit: a flame-retardant anti-static vest + a set of phase change ice packs.

1、马甲为均码设计，尺寸大小可由肩部及腰部魔术贴调节；

1. The vest is one size fits all design, the size can be adjusted by Velcro on the shoulder and waist；

2、相变冰袋包裹材料为铝箔膜，铝箔膜具有高热传导性并能有效防止热辐射；

2. The packaging material of the phase change ice pack is aluminum foil film, which has high thermal conductivity and can effectively prevent heat radiation；

3、相变冰袋可置于室内阴凉处（20度以下适宜）使相变材料蓄冷结晶，如需迅速    蓄冷，可置于空调或冰箱内冷却，冷却时间不宜超过20分钟，一次蓄冷可连续使用4小时；

3. The phase change ice pack can be placed in a cool indoor place (below 20 degrees is suitable) to make the phase change material cool and crystallize. If you need to quickly store the cold, it can be placed in an air conditioner or refrigerator to cool down. The cooling time should not exceed 20 minutes. One cold storage can be used continuously 4 hours；

4、相变降温服如不使用，需放置在20℃以下环境保存；

4. If the phase change cooling suit is not used, it should be stored in an environment below 20℃；

5、相变冰袋内填相变材料，安全无毒，无气味，可反复使用5000次以上。

5. The phase change ice bag is filled with phase change material, which is safe, non-toxic, odorless, and can be used repeatedly for more than 5000 times.

· 救生硐室/舱壁 相变板

     Rescue Chamber/Bulkhead Phase Change Plate

     相变板是由HDPE（高密度聚乙烯）作为封装材料，内部填充相变材料做成板材或者管材。HDPE具有高热传导性，耐热，耐摔等特性。相变板可平铺摆放在硐室的墙壁内。

      The phase change board is made of HDPE (high-density polyethylene) as the packaging material, and the phase change material is filled inside to make a sheet or pipe. HDPE has high thermal conductivity, heat resistance, and drop resistance. The phase change board can be placed flat in the wall of the chamber.