CN202202891U

CN202202891U - Closed underground lifesaving system

Info

Publication number: CN202202891U
Application number: CN2011203365907U
Authority: CN
Inventors: 李玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-04-25
Anticipated expiration: 2021-09-08

Abstract

The utility model belongs to the field of refuging and lifesaving equipment in an underground mining industry and particularly relates to a closed underground lifesaving system. The closed underground lifesaving system comprises an equipment cabin (1) and a retention cabin (2), wherein an artificial ventilation unit comprises a telescopic working air bag (301) and a telescopic jacking mechanism (401); the bottom of the telescopic working air bag (301) is connected with the telescopic jacking mechanism (401); a ventilation air suction opening (601) and a ventilation air exhaust opening (701) are formed at the end of the telescopic working air bag (301); the ventilation air exhaust opening (701) of the telescopic working air bag (301) is communicated with a cabin body air inlet pipe (12); an air suction port (1001) of an environment air purification unit is communicated with a cabin body air suction pipe (9); and an air exhaust port (1101) of the environment air purification unit is communicated with the ventilation air suction opening (601) of the telescopic working air bag (301). People to be rescued in a cabin body are not required to wear a face mask; and the external environment of a mine disaster happening region can be isolated effectively in the mine disaster.

Description

Closed down-hole life saving system

Technical field

Mining industry shelter and lifesaving apparatus field under the utility model possession relates in particular to a kind of closed down-hole life saving system.

Background technology

mine emergency refuging cabin is a kind of self-rescue escape device that the underground emergency hedging waits for rescue that is used for.The emergency-sheltering cabin is positioned near the getting working face; Under coal mine outstanding, the bump of burst gas, cave in or accident such as fire; Distress personnel gug escape immediately in down-hole is escaped danger in emergency circumstances when mine passage obstruction or electrical source of power outage, can get in the refuge cabin fast to wait for rescue.

because above-mentioned accident exists that destructive power is big, cause of accident is complicated and is prone to cause characteristics such as Secondary cases accident, the external world, back takes place in mine disaster can't in time launch rescue.And the down-hole has been because the poisoning that brings of accident, suffocating, drown etc. has constituted " No.1 killer ", and most casualtiess all are because the miner that gets into danger can not in time find safe shelter to cause.Therefore the miner that will get into danger is converted into " initiatively save oneself and combine with external rescue " by " passive fallback ", in the mine underground work face place possess resistance to compression, gas defence, heat insulation and can provide the mine emergency refuging cabin of necessary life condition to become inevitable.

are present, domestic does not still have hold many people, continuous oxygen supply is more than 72 hours, personnel to be rescued need not to wear face shield in the body of cabin, the special-purpose mine refuge lifesaving appliance that living environment is good and safe and reliable.

The utility model content

the utility model is intended to overcome the weak point of prior art and provides a kind of simple to operate; Safe and reliable; Personnel to be rescued need not to wear face shield in the body of cabin; Living environment is good, when mine disaster takes place, can effectively completely cut off the closed down-hole life saving system of the external environment condition of mine disaster generation area.

for achieving the above object, the utility model is achieved in that a kind of closed down-hole life saving system, and it comprises equipment compartment and is detained the cabin; Said equipment compartment communicates with the delay cabin; Contain at said equipment compartment: artificial ventilation unit and environmental gas clean unit; Said artificial ventilation unit comprises telescopic work air bag and flexible top-pushing mechanism; The bottom of said telescopic work air bag and the working end of flexible top-pushing mechanism join, to realize the vertical flexible of telescopic work air bag; The end of said telescopic work air bag is provided with ventilation air entry and ventilation exhaust opening; Be provided with one way valve successively at said ventilation air entry and ventilation exhaust ports; The ventilation exhaust opening of said telescopic work air bag communicates with cabin body air inlet pipe; Said environmental gas clean unit comprises purification pot; The suction port of said purification pot communicates with cabin body admission pipe, and its exhaust port communicates with the ventilation air entry of telescopic work air bag.

as a kind of preferred version, the said flexible top-pushing mechanism of the utility model comprises cam, axis and driving mechanism; The working end of said driving mechanism and the end of axis join; Said cam and axis are fixedly sleeved; Slide and join in the working end, bottom of the working end of said cam and telescopic work air bag.

as another kind of preferred version, the utility model also is provided with auxiliary telescopic work air bag and auxiliary purification pot in said equipment compartment; Fixedly sleeved auxiliary cam on said axis; Slide with the working end, bottom of auxiliary telescopic work air bag and join in the working end of said auxiliary cam; The end of said auxiliary telescopic work air bag is provided with auxiliary ventilation air entry and auxiliary ventilation exhaust opening; Be provided with one way valve successively at said auxiliary ventilation air entry and auxiliary ventilation exhaust ports; The auxiliary ventilation exhaust opening of said auxiliary telescopic work air bag communicates with cabin body air inlet pipe; The suction port of said auxiliary purification pot communicates with cabin body admission pipe, and its auxiliary exhaust port communicates with the auxiliary ventilation air entry of auxiliary telescopic work air bag.

for to improve the temperature environment in the body of cabin, the utility model also is provided with cabin body cooling system in said equipment compartment; Said cabin body cooling system comprises the ice medium hutch; In said ice medium hutch, be provided with heat exchanger coil; One port of said heat exchanger coil communicates with cabin body air inlet pipe, and its another port is gone into tracheae with the cabin body and communicated.

for to make the concentration of CO in the body of cabin satisfy safety index in the short time, and the utility model also is provided with pneumatic negative pressure filtration system in said equipment compartment; Said pneumatic negative pressure filtration system comprises pneumatic negative pressure gas cylinder and pneumatic negative-pressure air fan; The gas outlet of said pneumatic negative pressure gas cylinder communicates with the pneumatic air inlet port of pneumatic negative-pressure air fan; The gas outlet of said pneumatic negative-pressure air fan communicates with cabin body air pipe; Said pneumatic negative-pressure air fan air entry communicates with negative pressure cabin body admission pipe; In the cavity of said pneumatic negative-pressure air fan, is furnished with the filter material layer.

for removing the condensation hydrops in the heat exchanger coil, the utility model is provided with the funnel type dehumidifier at the bottom tube place of said heat exchanger coil.

are taken up space when life saving system is deposited by reducing, and cabin, the utility model said delay cabin body adopts Collapsible structure.

further, cabin, the utility model said delay cabin body comprises scalable base plate and side column; On said scalable base plate, be fixed with hydraulic tensioning mechanism; The working end, top of said hydraulic tensioning mechanism and the top of side column are coupling; The end of said scalable base plate and the end of equipment compartment are coupling.

for regulating the pressure balance of inside and outside, cabin, the utility model is provided with gas bomb in said equipment compartment; The port of said gas bomb communicates with equipment compartment.

The bearing that the utility model contracts on the working end, formula work air bag bottom joins with the slip of said oval-shaped groove.

the utility model is simple to operate, safe and reliable, and personnel to be rescued need not to wear face shield in the body of cabin, and living environment is good, when mine disaster takes place, can effectively completely cut off the external environment condition of mine disaster generation area.The utility model under normal circumstances can be integrated in the space of equipment compartment, in case emergency takes place, the opening device cabin door is detained the cabin simultaneously and is propped up automatically rapidly, and whole system moment can get into duty.The utility model be not provided with under the refrigeration mode situation through the artificial ventilation unit, and gas is realized cabin body circularly purifying through the environmental gas clean unit in the cabin; Be provided with under the refrigeration mode situation, gas is accomplished cabin body circularly purifying and temperature control through environmental gas clean unit and heat-exchange system in the cabin.In the whole process of suing and labouring, personnel need not to wear face shield in the cabin, have reduced the operation easier of system effectively.The utility model can make the cabin body running initial stage through pneumatic negative pressure cleaning system is set, and CO concentration dropped to 24ppm by 400ppm in 20 minutes.

Description of drawings

are described further the utility model below in conjunction with the accompanying drawing and the specific embodiment.

Fig. 1 is the closed down-hole of a utility model life saving system external structure sketch map.

Fig. 2 is the closed down-hole of a utility model life saving system inner body structural representation.

Fig. 3 is the utility model artificial ventilation unit and environmental gas clean unit structural representation.

Fig. 4 is the utility model environmental gas clean unit vertical view.

Fig. 5 is a pneumatic negative-pressure air fan structural representation in the pneumatic negative pressure cleaning system of the utility model.

Fig. 6 is a telescopic work airbag structure sketch map in the utility model artificial ventilation unit.

Fig. 7 is the utility model cabin body cooling system structure sketch map.

Fig. 8 is the pneumatic negative pressure cleaning system of a utility model workflow block diagram.

Fig. 9 is a gas filtration process flow block diagram in the utility model cabin.

Among figure, 1, equipment compartment; 2, be detained the cabin; 301, telescopic work air bag; 401, flexible top-pushing mechanism; 4011, cam; 4012, axis; 4013, driving mechanism; 601, ventilation air entry; 701, ventilation exhaust opening; 801, purification pot; 9, cabin body admission pipe; 1001, suction port; 1101, exhaust port; 302, auxiliary telescopic work air bag; 802, auxiliary purification pot; 4021, auxiliary cam; 602, auxiliary ventilation air entry; 702, auxiliary ventilation exhaust opening; 12, cabin body air inlet pipe; 1102, auxiliary exhaust port; 13, ice medium hutch; 14, heat exchanger coil; 15, the cabin body is gone into tracheae; 16, pneumatic negative pressure gas cylinder; 17, pneumatic negative-pressure air fan; 18, cabin body air pipe; 19, negative pressure cabin body admission pipe; 20, filter material layer; 21, funnel type dehumidifier; 22, scalable base plate; 23, side column; 24, hydraulic tensioning mechanism; 25, one way valve; 26, gas service pipe; 27, air-breathing arm; 28, bearing; 29, condensing apparatus; 30, compressor; 31, pneumatic air inlet port; 32, leach gas vent; 33, air pump waste gas outlet; 34, air pump; 35, negative-pressure air fan air entry; 36, hatch door; 37, starting switch; 38, shift fork; 39, rotary vane.

The specific embodiment

are as shown in Figure 1, closed down-hole life saving system, and it comprises equipment compartment 1 and is detained cabin 2; Said equipment compartment 1 communicates with delay cabin 2; Contain at said equipment compartment 1: artificial ventilation unit and environmental gas clean unit; Be detained to be mainly used in after launch in cabin 2 and wait to rescue personnel's delay.

referring to Fig. 2 and Fig. 3, the said artificial ventilation of the utility model unit comprises telescopic work air bag 301 and flexible top-pushing mechanism 401; The working end of the bottom of said telescopic work air bag 301 and flexible top-pushing mechanism 401 joins, to realize the vertical flexible of telescopic work air bag 301.

The end of said telescopic work air bag 301 is provided with ventilation air entry 601 and ventilation exhaust opening 701; Be provided with one way valve 25 successively at said ventilation air entry 601 and ventilation exhaust opening 701 places; The ventilation exhaust opening 701 of said telescopic work air bag 301 communicates with cabin body air inlet pipe 12; In the cabin after the filtration gas through the cabin body air inlet pipe 12 send back in the body of cabin.

referring to Fig. 2 and Fig. 3, the said environmental gas clean unit of the utility model comprises purification pot 801; The suction port 1001 of said purification pot 801 communicates with cabin body admission pipe 9, and its exhaust port 1101 communicates with the ventilation air entry 601 of telescopic work air bag 301.Get in telescopic work air bag 301 cavitys from the ventilation air entry from telescopic work air bag 301 601 after purification pot 801 filters of the gas to be filtered in the cabin; Telescopic work air bag 301 sends back to the gas after filtering in the body of cabin through cabin body air inlet pipe 12 in contraction process again.

the utility model also is provided with auxiliary telescopic work air bag 302 and auxiliary purification pot 802 in said equipment compartment 1; Fixedly sleeved auxiliary cam 4021 on said axis 4012; Slide with the working end, bottom of auxiliary telescopic work air bag 302 and join in the working end of said auxiliary cam 4021; The end of said auxiliary telescopic work air bag 302 is provided with auxiliary ventilation air entry 602 and auxiliary ventilation exhaust opening 702; Be provided with one way valve successively at said auxiliary ventilation air entry 602 and auxiliary ventilation exhaust opening 702 places; The auxiliary ventilation exhaust opening 702 of said auxiliary telescopic work air bag 302 communicates with cabin body air inlet pipe 12; The suction port 1001 of said auxiliary purification pot 802 communicates with cabin body admission pipe 9, and its auxiliary exhaust port one 102 communicates with the auxiliary ventilation air entry 602 of auxiliary telescopic work air bag 302.

referring to Fig. 3 and Fig. 4, the utility model environmental gas clean unit can adopt the filtration assembled unit, and it can comprise the purification pot of 8 parallel connections.The upper port of purification pot communicates with gas service pipe 26 through air-breathing arm 27; Said gas service pipe 26 communicates with cabin body admission pipe 9.Gas in the cabin body admission pipe 9 collection cabins is dispensed to air-breathing arm 27 through gas service pipe 26, gets into 8 purification pots that filter in the assembled unit at last and carries out the purification filtering processing.Corresponding with the purification pot of above-mentioned 8 parallel connections, the utility model can be provided with 4 telescopic work air bags, 4 telescopic work air bag alternating actions, thus accomplish the purpose of two groups of 4 purification pot concurrent workings.

The ventilation exhaust opening 701 of said telescopic work air bag of the utility model communicates with cabin body air inlet pipe 12 respectively; The ventilation air entry of telescopic work air bag communicates with the exhaust port of the purification pot of 8 parallel connections respectively successively.Telescopic work air bag sends back to the gas after filtering in the body of cabin through cabin body air inlet pipe 12 in contraction process in the lump again.

referring to Fig. 3 and Fig. 6, the said flexible top-pushing mechanism 401 of the utility model comprises cam 4011, axis 4012 and driving mechanism 4013; The end of the working end of said driving mechanism 4013 and axis 4012 joins; Said cam 4011 is fixedly sleeved with axis; Slide and join in the working end, bottom of the working end of said cam 4011 and telescopic work air bag 301.When concrete assembling, the oval slideway on bearing 28 and cam 4011 slides and connects in the working end, bottom of telescopic work air bag 301.Like this, when cam 4011 rotated, the bearing 28 that is coupled to telescopic work air bag 301 bottoms can drive telescopic work air bag 301 along the oval slideway on the cam 4011 and carry out reciprocating type flexible.Driving mechanism 4013 adopts the rod-pulling type rotational structure, certainly, also can adopt the hand-rail type structure.Operating personnel convert movement in a curve the circular motion of axis 4012 to when the push-and-pull operation, thereby realize the power drive to telescopic work air bag 301.

referring to Fig. 2, the utility model also can be provided with cabin body cooling system in said equipment compartment 1; Said cabin body cooling system comprises ice medium hutch 13; In said ice medium hutch 13, be provided with heat exchanger coil 14; One port of said heat exchanger coil 14 communicates with cabin body air inlet pipe 12, and its another port is gone into tracheae 15 with the cabin body and communicated.29 is condensing apparatus, and 30 is compressor.Carry out interchange of heat through the gas behind the filtration, purification through the heat exchanger coil 14 that cabin body air inlet pipe 12 gets in the ice medium hutchs 13 in the cabin, cooled gas through the cabin body go into tracheae 15 and get into and be detained cabins 2.

referring to Fig. 2 and Fig. 5, and the utility model also is provided with pneumatic negative pressure filtration system in said equipment compartment 1; Said pneumatic negative pressure filtration system comprises pneumatic negative pressure gas cylinder 16 and pneumatic negative-pressure air fan 17; The gas outlet of said pneumatic negative pressure gas cylinder 16 communicates with the pneumatic air inlet port 31 of pneumatic negative-pressure air fan 17; The gas outlet of said pneumatic negative-pressure air fan 17 communicates with cabin body air pipe 18; The gas outlet of pneumatic negative-pressure air fan 17 comprises and leaches gas vent 32 and air pump waste gas outlet 33.34 is air pump, and 39 is rotary vane.Said pneumatic negative-pressure air fan 17 bottom negative-pressure air fan air entries 35 communicate with negative pressure cabin body admission pipe 19; In the cavity of said pneumatic negative-pressure air fan 17, is furnished with filter material layer 20, in order to the CO gas in the EL body.When personnel to be rescued get into moment of cabin body, start pneumatic negative-pressure air fan 17, rotary vane 39 rotates under the gas effect that pneumatic negative pressure gas cylinder 16 provides, and in the cavity of pneumatic negative-pressure air fan 17, produces negative pressure.The gas that negative pressure cabin body admission pipe 19 is sent into is discharged from leaching gas vent 32 under the effect of filter material layer 20.Like this, CO concentration can drop to 24ppm by 400ppm in the cabin in 20 minutes.

referring to Fig. 2 and Fig. 7, the utility model is provided with funnel type dehumidifier 21 at the bottom tube place of said heat exchanger coil 14, in order to remove the liquid of condensation in the heat exchanger coil 14.Said funnel type dehumidifier 21 cavitys of the utility model communicate with heat exchanger coil 14 cavitys, in said funnel type dehumidifier 21 cavitys, are provided with the ball-type non retern valve, to stop the liquid overflow in funnel type dehumidifier 21 cavitys.

Whole condensed fluids under 21 effects of funnel type dehumidifier, can be held back in when the condensed fluid in the heat exchanger coil 14 flows to the bottom tube place of heat exchanger coil 14.

the said delay of the utility model cabin 2 cabin bodies adopt Collapsible structure.When in case of emergency, be detained cabin 2 cabin bodies and can launch automatically.

referring to Fig. 1, the said delay of the utility model cabin 2 cabin bodies comprise scalable base plate 22 and side column 23; On said scalable base plate 22, be fixed with hydraulic tensioning mechanism 24; The working end, top of said hydraulic tensioning mechanism 24 and the top of side column 23 are coupling.The end of the scalable base plate 22 of the utility model and the end of equipment compartment 1 are coupling.Under the normal condition, hydraulic tensioning mechanism 24 can be withdrawn into horizontal level with side column 23, scalable base plate 22 retractions.Scalable base plate 22 fastens with equipment compartment 1 after 90 degree upsets.

referring to Fig. 1, the utility model is arranged with oval-shaped groove on two work planes of said cam 4011; The bearing 28 that is coupled on the working end, telescopic work air bag 301 bottom joins with said oval-shaped groove slip.

for regulating the pressure balance of inside and outside, cabin, the utility model is provided with gas bomb 24 in said equipment compartment 1; The port of said gas bomb 24 communicates with equipment compartment 1.

are referring to Fig. 8 and Fig. 9; When the utility model uses; The scene personnel that take refuge rotate to an angle shift fork 38 through rotating starting switch 37, are detained cabin 2 like this and under the effect of self storage power, launch gradually, and scalable base plate 22 draws back simultaneously.Hydraulic tensioning mechanism 24 pushing tow side columns 23 are to correct position; Opening device cabin door 36, the personnel that take refuge get into the cabin body immediately, start pneumatic negative pressure filtration system, and the gas that negative pressure cabin body admission pipe 19 is sent into is discharged from leaching gas vent 32 under the effect of filter material layer 20.Like this, CO concentration can drop to 24ppm by 400ppm in the cabin in 20 minutes.

are when pneumatic negative pressure filtration system works; The supply gas pneumatic air inlet port 31 of pneumatic negative-pressure air fan air pump 34 of pneumatic negative pressure gas cylinder 16; Pneumatic negative-pressure air fan relies on suction function to rely on two-way negative pressure cabin body admission pipe 19 in the cabin, to gather gas; Pneumatic negative-pressure air fan air pump waste gas outlet combustion gas, pneumatic negative-pressure air fan leach gas vent and discharge gas in the cabin of filtering through moment, and above-mentioned two-way gas converges after cabin body air pipe 18 is sent in the cabin again.

The telescopic work air bag of artificial promotion; Be not provided with under the refrigeration mode state in system; Carry out air-breathing operation during the work air bag expansion, at this moment, admission pipe 9 is gathered gas in the cabin in the cabin in the cabin; Get into filtration assembled unit (purification pot 801,802) through air distribution 26 and air-breathing arm 27, filter; When the work air bag shrinks; Carry out the exhaust operation, at this moment, the closed check valve of work air bag ventilation air entry 601; The one-way valve opens of work air bag ventilation exhaust opening 701, body air inlet pipe 12 pushes back in the cabin gas through the cabin in the cabin after the work air bag will filter under the effect of external force.Be provided with under the refrigeration mode state in system, carry out air-breathing operation during the work air bag expansion, at this moment; Admission pipe 9 is gathered gas in the cabin in the cabin in the cabin, gets into filtration assembled unit (purification pot 801,802) through air distribution 26 and air-breathing arm 27, filters; When the work air bag shrinks; Carry out the exhaust operation, at this moment, the closed check valve of work air bag ventilation air entry 601; The one-way valve opens of work air bag ventilation exhaust opening 701, body air inlet pipe 12 pushes and carries out interchange of heat in the ice medium hutch 13 gas through the cabin in the cabin after the work air bag will filter under the effect of external force.Gas through supercooling gets into the cabin through mass air flow sensor, thereby accomplishes once circulation.Ice medium hutch 13 adopts the air compressor machine refrigeration mode, in the ice medium hutch 13, outside heat exchanger coil 14, is full of ice medium, for ease of dehumidifying in the coil pipe, the funnel-form dehumidifier can be set under the bottom tube of coil pipe.

The above is merely the preferred embodiment of the utility model , is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. a closed down-hole life saving system is characterized in that, comprises equipment compartment (1) and is detained cabin (2); Said equipment compartment (1) communicates with delay cabin (2); Contain at said equipment compartment (1): artificial ventilation unit and environmental gas clean unit;

Said artificial ventilation unit comprises telescopic work air bag (301) and flexible top-pushing mechanism (401); The working end of the bottom of said telescopic work air bag (301) and flexible top-pushing mechanism (401) joins, to realize the vertical flexible of telescopic work air bag (301);

The end of said telescopic work air bag (301) is provided with ventilation air entry (601) and ventilation exhaust opening (701); Locate to be provided with successively one way valve at said ventilation air entry (601) and ventilation exhaust opening (701); The ventilation exhaust opening (701) of said telescopic work air bag (301) communicates with cabin body air inlet pipe (12);

Said environmental gas clean unit comprises purification pot (801); The suction port (1001) of said purification pot (801) communicates with cabin body admission pipe (9), and its exhaust port (1101) communicates with the ventilation air entry (601) of telescopic work air bag (301).

2. closed down-hole according to claim 1 life saving system is characterized in that: said flexible top-pushing mechanism (401) comprises cam (4011), axis (4012) and driving mechanism (4013); The end of the working end of said driving mechanism (4013) and axis (4012) joins; Said cam (4011) is fixedly sleeved with axis; Slide and join in the working end, bottom of the working end of said cam (4011) and telescopic work air bag (301).

3. closed down-hole according to claim 2 life saving system is characterized in that: in said equipment compartment (1), also be provided with auxiliary telescopic work air bag (302) and auxiliary purification pot (802); Go up fixedly sleeved auxiliary cam (4021) at said axis (4012); Slide with the working end, bottom of auxiliary telescopic work air bag (302) and join in the working end of said auxiliary cam (4021); The end of said auxiliary telescopic work air bag (302) is provided with auxiliary ventilation air entry (602) and auxiliary ventilation exhaust opening (702); Locate to be provided with successively one way valve at said auxiliary ventilation air entry (602) and auxiliary ventilation exhaust opening (702); The auxiliary ventilation exhaust opening (702) of said auxiliary telescopic work air bag (302) communicates with cabin body air inlet pipe (12); The suction port (1001) of said auxiliary purification pot (802) communicates with cabin body admission pipe (9), and its auxiliary exhaust port (1102) communicates with the auxiliary ventilation air entry (602) of auxiliary telescopic work air bag (302).

4. closed down-hole according to claim 3 life saving system is characterized in that: in said equipment compartment (1), also be provided with cabin body cooling system; Said cabin body cooling system comprises ice medium hutch (13); In said ice medium hutch (13), be provided with heat exchanger coil (14); One port of said heat exchanger coil (14) communicates with cabin body air inlet pipe (12), and its another port is gone into tracheae (15) with the cabin body and communicated.

5. closed down-hole according to claim 4 life saving system is characterized in that: in said equipment compartment (1), also be provided with pneumatic negative pressure filtration system; Said pneumatic negative pressure filtration system comprises pneumatic negative pressure gas cylinder (16) and pneumatic negative-pressure air fan (17); The gas outlet of said pneumatic negative pressure gas cylinder (16) communicates with the pneumatic air inlet port (31) of pneumatic negative-pressure air fan (17); The gas outlet of said pneumatic negative-pressure air fan (17) communicates with cabin body air pipe (18); Said pneumatic negative-pressure air fan (17) air entry communicates with negative pressure cabin body admission pipe (19); In the cavity of said pneumatic negative-pressure air fan (17), is furnished with filter material layer (20).

6. closed down-hole according to claim 5 life saving system is characterized in that: be provided with funnel type dehumidifier (21) at the bottom tube place of said heat exchanger coil (14).

7. closed down-hole according to claim 6 life saving system is characterized in that: cabin, said delay cabin (2) body adopts Collapsible structure.

8. according to the arbitrary described closed down-hole life saving system of claim 1～7, it is characterized in that: cabin, said delay cabin (2) body comprises scalable base plate (22) and side column (23); On said scalable base plate (22), be fixed with hydraulic tensioning mechanism (24); The top of the working end, top of said hydraulic tensioning mechanism (24) and side column (23) is coupling; The end of the end of said scalable base plate (22) and equipment compartment (1) is coupling.

9. closed down-hole according to claim 8 life saving system is characterized in that: in said equipment compartment (1), be provided with gas bomb (24); The port of said gas bomb (24) communicates with equipment compartment (1).

10. closed down-hole according to claim 3 life saving system is characterized in that: on two work planes of said cam (4011), be arranged with oval-shaped groove; The bearing (28) that is coupled on the working end, telescopic work air bag (301) bottom joins with said oval-shaped groove slip.