- Other Heat Insulation Materials[2]
- Other Energy Related Products[8]
- Solar Energy Systems[1]
- Other Bicycle Parts[1]
- Mattresses[10]
- Medical Consumables[4]
- Other Furniture Parts[1]
- Seat Cushions[2]
- Other Security & Protection Products[6]
- Other Telecommunications Products[5]
- Other Textiles & Leather Products[1]
- Leather Product[1]
- Vests & Waistcoats[3]
- Cushion[3]
- Laptop Cooling Pads[2]
- Pet Collars & Leashes[1]
- Other Sports & Entertainment Products[10]
- Sweatband[1]
- Contact Person : Ms. wang snow
- Company Name : Hangzhou Phase Change Technology Co., Ltd.
- Tel : 86-0571-86815016
- Fax : 86-0571-82475076
- Address : Zhejiang,Hangzhou,No.249,Zixia Village,Heshang Industrial Park,Heshang Town,Xiaoshan District
- Country/Region : China
- Zip : 310052
New energy free type mine refuge room
Mine underground emergency lifesaving capsule
Mine rescue capsule
underground emergency system
Underground emergency facility is a confined space providing life support for people who has no time for evacuation. This emergency facility, externally, resist high temperature gas and isolate from toxic gas, and internally supply oxygen, food, water, and remove harmful gas, creating the basic condition for living and earning time for emergency rescue, and also guiding outside rescue by inner setted communication monitoring equipment.
Advantages and disadvantage of Mainstream refrigeration methods
| Technology readiness level | toxicity | Influence of humidity | Cost | Energy or energy free | others |
Ice storage refrigeration | High | No | Add | High | Yes | Troublesome to maintain, energy consumption large. Easy to cause explosion when power off gas density exceeds over normal state |
Liquid CO2 | High | yes | No | High | Yes | Regular replace ment, large volume of storage equipment, storage temperature low, refrigeration effect is heavily reduced when temperature higher than 31.1°C |
NH4NO3 heat of solution | High | yes | No | Low | No | 2-year replacement, possible explosion when heated |
Energy free phase change air conditioner | Low, new type not widely promoted | No | No | Low | No | Energy intensity reaches 335MJ/m3, maintenance free, no risk of explosion, stable performance, long life |
Our company phase change material Spec.
Phase change material DATA SHEET
Model | Melting point (°C) | Latent heat KJ/KG | Intensity (1.0×10^3kg/m^3) | heat conductivity (W/m.K) | volume variation % | subcooling degree (°C) |
PH-23 | 23 | 250 | 1.42 | 0.56 | 10 | ≤4 |
PH-24 | 24 | 250 | 1.42 | 0.56 | 10 | ≤4 |
PH-25 | 25 | 250 | 1.42 | 0.56 | 10 | ≤4 |
PH-26 | 26 | 250 | 1.42 | 0.56 | 10 | ≤4 |
PH-27 | 27 | 250 | 1.42 | 0.56 | 10 | ≤4 |
PH-28 | 28 | 250 | 1.42 | 0.56 | 10 | ≤4 |
mainstream refregeration methods
To prevent external CO and other toxic gas infiltrating into the chamber, airtight and positive pressure structure is applied in the refuge chamber and lifesaving capsule. Temperature and humidity will gradually rise when people get into the airtight and positive pressure structure chamber. So, to meet the standard of temperature lower than 35°C and humidity less than 85%, we should have to cool and dehumidify refuge chamber and lifesaving capsule. The current refrigeration methods are mainly: ice storage refrigeration, high pressure gas expansion refrigeration( generally liquid CO2), NH4NO3 heat of solution and phase change material(with our company energy free phase change air conditioner ).
New energy free type mine refuge room