CN2071070U - Mine filting type oxygen-producing life self-saving device - Google Patents

Abstract

The utility model discloses an oxygen-producing life self-saving device of the mine filtering type which comprises a casing, a tank, sealing rings, sealing blocks, unsealing rings, heat exchangers, separation net, etc. Firstly, the upper separation net is arranged on the upper part of the tank, and then the middle catalyst separation net is arranged on the tank. The sealing rings 18 are arranged in the grooves of the upper tank 19, the sealing blocks 20 are arranged in the preset holes of the upper tank 19, and steel balls 21 are arranged at the insides of the sealing blocks 20. Superoxide of alkali metal and catalyzing catalyst are arranged at the inside of the utility model, when carbon monoxide which contains water vapor passes through the self-saving device, the oxygen which is generated by the reaction of the superoxide of alkali metal and water makes the carbon monoxide innoxious and makes the carbon monoxide transformed into carbon dioxide. The utility model has the advantages that the volume of the self-saving device is small and portable, the marking of air leak is obviously arranged on the self-saving device, and the efficacy is long which facilitates the emergency self-saving of the underground workers.

Description

Mine filting type oxygen-producing life self-saving device

The utility model relates to respiratory protection self-help apparatus under a kind of coal mine.

Self-rescuer is in order to prevent the respiratory protection equipment of anthracemia when being used under the coal mine breaking out of fire or gas explosion.At present, the colliery self-rescuer that uses both at home and abroad can be divided into two classes:

One, filtering type self-rescuer, its basic principle are when poisonous carbon monoxide during by the catalyst in the self-rescuer, with the nontoxic carbon dioxide of airborne oxygen reaction generation.Can producing when contacting with water owing to catalyst poisons loses catalytic action, thus require to contain the pernicious gas of aqueous vapor want before contact with catalyst elder generation by drier with absorption moisture content.But gas humidity is very big under the mine, and the wettability power of drier is limited in the self-rescuer, so protective capacities and time are all limited.In addition, because carbon monoxide transfers the required oxygen of carbon dioxide to from air, the personnel of wearing breathe required oxygen also from air, thus when requiring the use self-rescuer in the air content of oxygen must not be lower than 18%.

Two, isolation type self-rescuer: wherein can be divided into oxygen cylinder oxygen supply and peroxide breakdown and give birth to two kinds of oxygen.Its advantage is that people's breathing is hedged off from the outer world, and the people only absorbs the oxygen that produces in the self-rescuer.Shortcoming be the self-rescuer volume big, heavy, carry very inconveniently, and often can not in time take in the emergency episode.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of colliery to give birth to oxygen life saving device with filtering type.

The basic functional principle that oxygen life saving device (hereinafter to be referred as self-rescuer) is given birth to filtering type in novel colliery is: the humid air that contains carbon monoxide enters the self-rescuer tank body, airborne moisture content at first contacts with the alkali metal superoxides, carry out chemical reaction, realize the dual-use function of dehumidifying and living oxygen, under the catalytic action of catalyst, carbon monoxide and oxygen chemical combination are converted into harmless carbon dioxide.

H ₂O＋K ₂O ₄→2KOH＋3／20 ₂

2CO＋O ₂→2CO ₂

Owing to alkali metal superoxides chance water is emitted oxygen,, also promptly improved protective value to the wearer so the deficiency of oxygen in the energy supplement ambient atmosphere has reduced the requirement to the ambient air oxygen content.Can only use the shortcoming of self giving birth to oxygen and can not utilize oxygen in the environment because this self-rescuer has overcome the isolation type self-rescuer,, be convenient to carry so make this self-rescuer light small and exquisite.

The shell of this self-rescuer adopts vacuum self-locking seal structure, and the self-rescuer that metallic plate is made keeps sealing for outer up and down jar.Because in jar is negative pressure, jar compresses sealing ring therebetween mutually under the environment atmospheric pressure effect up and down, makes the self-rescuer shell keep sealing.Because the outer jar intensity of metal is big, the vacuum in jar can be taken out very highly, makes outer up and down jar sealing very firm.Avoided original filtering type self-rescuer to adopt the necessary bubble-tight shortcoming of running check of mechanical seal.Tank body can show the unlatching shape automatically when the sealing of this self-rescuer wrecked, and prompting is worn the people and handled immediately; Do not open and show that then sealing is reliable.

The overcoat of this self-rescuer has easy to use, and protective value is good, and is safe and reliable and be easy to advantage such as processing and manufacturing.Generally can make of the rubber elastomeric material.

Below in conjunction with accompanying drawing 1,2,3 embodiment of the present utility model is described:

Accompanying drawing 1 is that oxygen life saving device inside subject structural representation is given birth to filtering type in the colliery.1 is that nose clip, 2 is tank body for alkali metal superoxides, 15 for catalyst, 14 for heat exchanger, 13 for a mouthful tool, 12 for headband, 11 for heat shield, 10 for sealing heelpiece, 9 for bottom, 8 for volute spring, 7 for following filter, 6 for middle filter, 5 for upper filter, 4 for outlet valve, 3 among the figure.

Accompanying drawing 2 is shell vacuum self-locking seal structural representations.Among the figure 16 for following jar, 17 be inside subject, 18 for sealing ring, 19 for last jar, 20 for sealing block, 21 for stainless steel ball, 22 be to break seal to encircle.

Accompanying drawing 3 is self-rescuer jacket structure schematic diagrames.

The inside subject structure of Fig. 1 is partly assembled by mouth tool assembly and medicinal cupping assembly two, and its coupling components can be tightened with the stainless steel cassette tape.Because of mouth tool 11 rubber manufacturing, tighten maintenance sealing to external world between deutostoma tool and the tank body 15.

Mouthful tool assembly be a matrix with a mouthful tool 11 among Fig. 1 before being assembled into inside subject, within it portion's skeletons such as heat exchanger 12, mouth tool box of packing into.Nose clip 1 and outlet valve 2 are connected on mouthful tool box, and the mode that can screw with screw thread makes outlet valve clamp rubber mouth tool and realizes sealing.

The assembling of medicinal cupping assembly need be carried out under the damp condition of regulation.The top of tank body 15 upper filter 3 of at first packing into, the catalyst 13 of quantitatively packing into again, middle filter 4, alkali metal superoxides 14 and following filter 5 are pressed into volute spring assembly 6 then, the suitable tightness degree of medicine in keeping jar.Bottom 7 and sealing heelpiece 8 are sealed tank body 15 lower periphery, can prevent that jar interior medicine from spilling.Gap between wherein middle filter 4 and following filter 5 and the tank body 15 is very little but can slide, to guarantee that volute spring 6 compresses medicine all the time.Upper filter can be made one with tank body.Three filters all have filter dirt ability.

The bottom of headband 10 is held in the palm tight tank body assembly from bottom to top, and tightens with cassette tape when assembling, and the top of headband 10 is wrapped on the outlet valve 2 when assembling, and is placed in survivor's head when using fully.

Heat shield 9 is made by the material of excellent heat insulating performance, is placed in outside the medicinal cupping assembly, fastens, and can prevent that extraneous dust from entering self-rescuer and medicinal cupping, avoids the stimulation to survivor's skin of higher temperature during use.

After inside subject assembling is finished, can put into Fig. 2 following jar 16.Sealing ring 18 is contained in the groove of jar 19, and sealing block 20 is contained in jar 19 holes of presetting, and puts into the suitable guiding principle ball 21 of diameter in sealing block 20.After Fig. 2 assembling, complete machine is inverted in the special vacuum packaging equipment, vacuumizes.After resetting as Fig. 2, from vacuum packaging equipment, take out.This moment, atmospheric pressure made each one of self-rescuer keep sealing.

Fig. 3 is the self-rescuer overcoat, for carrying usefulness.Its available rubber strip of each or leather are made, and point of attachment is with rivet or bondingly all can.

The hermetically-sealed construction of self-rescuer shell except that Fig. 2 vacuum seal structure, also can need adopt mechanical seal by the user.

Present embodiment is to constitute like this: before going down into a mine, each miner should check whether self-rescuer damages, and should change if any damaging.Should carry all the time when going into the well work, running into following situation should wear immediately: see smog; Feel the smell that catches fire; Feel headache and nauseating; Feel that unexpected pressure suddenly increases; Find that unexpected dust kicks up.These signs show that fire or blast will take place suddenly, so must wear self-rescuer immediately.At first in the self-rescuer overcoat, take out self-rescuer; Draw back unpacking ring 22; Extract sealing block 20, take away jar 19, catch headband 10 then, take out Lu poison tank body 15, lose lower tank 16, pull-up nose clip 1, mouth tool 11 is put into mouth, tooth is bitten bite-block, make the oral area sealing, two pull out the both sides that rubber nose clip 1 is clipped in nose, breathe with mouth.Take off miner light cap, worn headband 10, put on miner light cap again, withdraw the scene.

The utility model compares with old-fashioned self-rescuer that to have a volume little, in light weight, and the characteristics that effect is big are given birth to oxygen in dehumidifying, make the catalytic action of catalyst be able to lasting protection. The shell of vacuum self-locking sealing structure makes gas leakage whether sign fairly obvious, has multi-functional self-rescuer overcoat, can save the materials such as belt loop, protective sleeve, packaging cushion.

Claims (1)

1, a kind of by (last jar 19 of tank body 15, following jar 16), sealing ring 18, sealing block 20, unpacking ring 22, heat exchanger 12, the filtering type that upper filter 3 and middle filter 4 and following filter 5 etc. are formed is given birth to oxygen life saving device, it is characterized in that: earlier upper filter 3 is loaded on tank body top, reinstall catalyst 13, middle filter 4, alkali metal superoxides 14 and following filter 5, then be pressed into volute spring assembly 6, the lower periphery of sealing tank body 15 with bottom 7 and sealing heelpiece 8, be contained in sealing ring 18 in the groove of jar 19, sealing block 20 is contained in jar 19 holes of presetting, put into steel ball 21 in the sealing block 20, when sealing ring was destroyed, tank body can show automatically opened shape.