Hangzhou Phase Change Technology Co., Ltd.
Main products:Phase change material (PCM laptop cool pad, PCM cool pillow, PCM cool mat, PCM cool panel, PCM cool vest), PCM cool vest, PCM cool panel)
Products
Contact Us
  • 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

New energy free type mine refuge room
Product Detailed
-lifesaving capsule in mine emergency -use phase change temeprature constant material -free energy material keeps safe capsule

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



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