CN105056421A - Failure self-detecting type chemical oxygen self-rescuer - Google Patents
Failure self-detecting type chemical oxygen self-rescuer Download PDFInfo
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- CN105056421A CN105056421A CN201510569526.6A CN201510569526A CN105056421A CN 105056421 A CN105056421 A CN 105056421A CN 201510569526 A CN201510569526 A CN 201510569526A CN 105056421 A CN105056421 A CN 105056421A
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- self
- oxygen
- rescuer
- assembly
- shell
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
Abstract
The invention relates to an isolation type chemical oxygen self-rescuer for an underground coal mine, in particular to a failure self-detecting type chemical oxygen self-rescuer. The failure self-detecting type chemical oxygen self-rescuer comprises a breathing mouth assembly, an airbag assembly, an oxygen generating tank assembly, an early oxygen supplying assembly, a failure self-detecting assembly and a protective upper cover assembly; the oxygen generating tank assembly comprises a shell, an isolation box is supported in the shell, an airflow equipartition pad is arranged in the isolation box, a first filter pad is arranged under the airflow equipartition pad, and an oxygen generating agent is placed in the isolation box; the early oxygen supplying assembly comprises a gland, a water storage tank and an oxygen generating cover; the failure self-detecting assembly comprises a detecting box, and a self-detecting circuit is arranged in the detecting box; the protective upper cover assembly comprises a shell upper cover. According to the failure self-detecting type chemical oxygen self-rescuer, the brand new design is achieved, the failure self-detecting function is achieved from material usage of a self-rescuer shell, a method of early oxygen generation and the overall structure of the self-rescuer by adopting an electronic technology and an micro-computer technology, and therefore the failure self-detecting type chemical oxygen self-rescuer has the very high technological content.
Description
Technical field
The present invention relates to underground mine use isolation type chemical-oxygen self-rescuer, be specially inefficacy self-monitoring chemical oxygen self-rescuer.
Background technology
Isolation type chemical-oxygen self-rescuer is the personal respiratory protection device utilizing the raw oxygen principle of chemicals potassium superoxide; it is mainly applicable in underground coal mine digging operation; when there is the disaster such as gas explosion, coal seam blast, fire or Gas Outburst in mine and causing in environment anoxic or occur that harmful toxic gas jeopardizes miner's life security; miner can wear in time; withdraw disaster area rapidly, realize the object of escape.
Its operation principle of existing isolation type chemical-oxygen self-rescuer for: wear oxygen needed for Initial human, thered is provided by oxygen cylinder, do not limit by surrounding environment pernicious gas during use, when wearer exhales, exhale through mouthpiece, there is following chemical reaction in the oxygen generating agent of lowering the temperature in net, up-hole plate and online board component and medicinal cupping body: 2KO
2+ H
2o → 2KOH+3/2O
2+ heat, 2KOH+CO
2→ K
2cO
3+ H
2o+ heat, aqueous vapor and carbon dioxide and oxygen generating agent react, and generate the gas that oxygen content is higher, enter air bag through off line board component, orifice plate; During air-breathing, the oxygen stored in air bag through orifice plate, off line board component, again enters the respiratory system of people, completes whole breath cycle through oxygen generating agent, mouthpiece.
The isolation type chemical-oxygen self-rescuer used within coal mines at present, is all this structure substantially, therefore there is the deficiency of the following aspects:
1) chemical oxygen self-rescuer is in use procedure, works as 2KO
2+ H
2during O reaction, generate 2KOH+3/2O
2+ heat; Work as 2KOH+CO
2during reaction, generate K
2cO
3+ H
2o+ heat, can clearly find out from these two reaction equations generation oxygen while also create heat, if this heat can not well dissipate, it will affect the safe handling of chemical oxygen self-rescuer; In using, producing the position of heat is oxygen generator, when the gas of breathing out through mouthpiece, breathing hose enter oxygen generator carry out giving birth to oxygen time, produce heat, this heat part has been stayed in oxygen generator, and another part enters in lower airbag with gas; During air-breathing, gas in air bag returns to oxygen generator, the original heat stored in oxygen generator, enter human respiratory through breathing hose, in breathing hose, placed a cooler here, solve heat dissipation problem, if because of certain reason exacerbate respiratory capacity time, cooler has little time to dissipate unnecessary heat, and so this heat just enters human body, damages human body.
2) wear the initial stage, oxygen cylinder provides initial stage oxygen supply for user, and oxygen cylinder is metal bottle, and bottleneck has hand switch, opens switch and be charged in air bag by the oxygen of oxygen cylinder, for the initial stage of user during use.But in actual use, the switch seal of oxygen cylinder is unreliable, occurs in use, without problems such as gas or tolerance deficiencies.If add air pressure Displaying Meter on oxygen cylinder, one is without space, and two is that cost is high.So this is also a FAQs of existing chemical oxygen self-rescuer.
3) shell of isolation type chemical-oxygen self-rescuer must have good air-tightness, each self-rescuer passes through test at the Shi Douyi that dispatches from the factory, but self-rescuer must be carried by end user when using, self-rescuer is subject to the impact of extraneous service condition at any time, the air-tightness of self-rescuer is reduced, if applying unit can not detect the air-tightness of self-rescuer in time, user of service carries an invalid self-rescuer and carries out underground work, when in mine, gas explosion occurring, explode in coal seam, when the disaster such as fire or Gas Outburst to cause in environment anoxic or occurs that harmful toxic gas jeopardizes miner's life security, the safety of user cannot ensure.If every platform self-rescuer all has self-checking function, when self-rescuer is subject to the air-tightness of outside destroy self-rescuer, user is noticed by certain form, the qualified self-rescuer of timely replacing, improve chemical oxygen self-rescuer safety in utilization by this method, up to the present also there is no a chemical oxygen self-rescuer with such function.
4) isolation type chemical-oxygen self-rescuer of current 30 minutes, deadweight more than 2.5kg, each staff gone into the well carries 5 jin of multiple self-rescuers, carries out underground work, has increased the weight of the burden of personnel in the pit.
5) a kind of display can be provided on self-rescuer, the effective storage life of self-rescuer can be shown after coming into operation, as successively decreasing of 3 years term of validity time; Can show residue service time when enabling self-rescuer, as 30 minutes successively decrease, user knew what's what, the movement of reasonable arrangement oneself, improved the usability of self-rescuer.
Summary of the invention
The present invention to save oneself the problem of weak effect to solve existing isolation type chemical-oxygen self-rescuer, provides inefficacy self-monitoring chemical oxygen self-rescuer.
The present invention adopts following technical scheme to realize: inefficacy self-monitoring chemical oxygen self-rescuer, comprises and breathes mouthpiece assembly, air bag component, oxygen generator assembly, initial stage keeping assembly, inefficacy self-inspection assembly and protection cover assembly;
Oxygen generator assembly comprises shell, sheath top plate is provided with the initial stage keeping storehouse be communicated with enclosure, the open top in initial stage keeping storehouse, sheath top plate has gas vent, shell inner support have to be formed between outer casing inner wall interval, the shielded box of bottom opening, the top of shielded box is provided with the breathing isolated tube be communicated with box house, breathes isolated tube and stretches out shell from gas vent, the bottom of shielded box is also provided with the 3rd filter pad, and the 3rd isolating pad is placed with oxygen generating agent;
The raw oxygen lid that initial stage oxygen supply assembly comprises gland, water tank and is made up of filter, it is inner that raw oxygen lid is arranged at initial stage keeping storehouse, water tank is placed on raw oxygen and covers, gland is buckled in the top open part that the initial stage supports storehouse, and the bottom of gland contacts with water tank, the below of raw oxygen lid is provided with the second filter pad, and raw oxygen covers and is also placed with oxygen generating agent;
Inefficacy self-inspection assembly comprises the detection box be arranged in sheath top plate, box body is provided with pressure sensor and display screen, battery and circuit board is provided with in box body, circuit board is welded with microprocessor, magnetic inductor and infrared processor, magnetic inductor, infrared processor are all connected with microprocessor with pressure sensor, microprocessor is connected with display screen, and battery is powered for each device and display screen;
Protection cover assembly comprises outer casing upper cover, and outer casing upper cover covers cover top portion (detection box and initial stage support storehouse to cover by shell), is lined with airtight circle, outer casing upper cover is also provided with magnet between shell and cover top portion.
In last operation of production process, after outer casing upper cover and shell are assembled, by 200bar air Injection in outer casing upper cover cavity, make outer casing upper cover cavity pressure sensor pressurized, infrared processor is aimed at debugger, send pressure detecting order, current cavity pressure, time are recorded in internal storage by microprocessor; When self-rescuer dispatches from the factory, aim at infrared processor with debugger, send and to dispatch from the factory order, microprocessor by current time record, and tests cavity pressure whether in prescribed limit, if defective, display screen will show fail message, and can not dispatch from the factory.
When inefficacy self-monitoring chemical oxygen self-rescuer uses, pull outer casing upper cover, outer casing upper cover is departed from oxygen generator package shell, the top of breathing mouthpiece assembly is connected with air bag component, bottom is connected with breathing isolated tube, the top of air bag component is connected with the top of breathing mouthpiece assembly, bottom exports with shell gases and is connected, because outer casing upper cover is provided with magnet, when it departs from oxygen generator package shell, magnetic inductor impression is less than magnetic field, microprocessor will start countdown procedure, show spendable remaining time on a display screen simultaneously, firmly press the gland that the initial stage supports assembly afterwards, crush water tank, initial stage supports the raw oxygen medicine of assembly and water to react and generates oxygen, air bag is entered through the second filter pad, for people, at this moment user of service can take off the plug envelope in pneumostome tool assembly, by mouthpiece containing in entrance, enter use procedure.User of service according to the number of the remaining time on display screen, can arrange the action of oneself.When mouthpiece contains in entrance by user of service, during breath, exhale through breathing the outlet valve on valve seat, flexible conduit, breathing isolated tube enters in shielded box, react with oxygen generating agent and generate oxygen, oxygen can only be descending, through bottom the 3rd, filter pad enters in bottom cavity, owing to leaving interval inside shielded box and shell, namely oxygen rising passway is had, oxygen upwards flows along the medial surface in shell, and externally dispel the heat through shell, be filled with in air bag finally by gas vent, during air-breathing, the breather valve of gas in air bag through breathing valve seat enters human respiratory, complete respiratory.
If self-rescuer outer casing upper cover cavity pressure is lower than set-point, display will show fail message always.During use, require that self-rescuer all will carry out a self-inspection to self-rescuer before going into the well, ensure the effective of self-rescuer with this.
Above-mentioned inefficacy self-monitoring chemical oxygen self-rescuer, shielded box internal upper part is provided with the air-flow separated up and down by internal cavity and divides equally pad, and the below that air-flow divides equally pad is provided with the first filter pad.The gas of characteristics of contaminated respiratory droplets is introduced into breathes isolated tube and air-flow is divided equally in the cavity between pad, and react with oxygen generating agent after the gas of exhalation divides equally pad, the first filter pad through air-flow again, air-flow divides equally pad makes gas uniform scatter, and energy and oxygen generating agent fully react.
Above-mentioned inefficacy self-monitoring chemical oxygen self-rescuer, oxygen generator package shell, air-flow are divided equally pad, shielded box and are all adopted the corrosion-resistant PEEK plastics of high-strength high temperature-resistant, detect box, outer casing upper cover, gland employing ABC-PC plastics, the about 1.2kg of self-rescuer gross weight, be 1/2 of existing product weight, alleviate the burden of wearer.
Inefficacy self-monitoring chemical oxygen self-rescuer provided by the invention is a brand-new design, it is from materials'use, the initial stage raw method of oxygen, the overall structure of self-rescuer of self-rescuer housing, electronic technology, Microcomputer Technology are adopted and realize inefficacy self-checking function again, inefficacy self-monitoring chemical oxygen self-rescuer has very high scientific and technological content thus.Its marked improvement is as follows:
1) there is inefficacy self-checking function, improve the reliable use of chemical oxygen self-rescuer, inefficacy self-checking function self-rescuer, also do not meet at current home and overseas, the realization of self-checking function is an innovation, its every day is all detected the air-tightness of chemical oxygen, and testing result is notified user by display screen.Test process is very simple, do not need checkout equipment, and regardless of any place and place, this function is that the safe handling of chemical oxygen provides guarantee.
2) novel structure, make the heat radiation of chemical oxygen self-rescuer easier, analysis was carried out to existing chemical oxygen self-rescuer heat radiation in the introduction, also heat is created when adopting potassium superoxide and oxygen is produced in water reaction, for reaching application target, the disperses heat that must will produce, the heat dissipating method of existing chemical oxygen is unreasonable, just reduce temperature by the cooler in flexible conduit, if respiratory capacity is aggravated, the very possible safe handling affecting chemical oxygen self-rescuer, respiration channel is changed in the design, it is just being dissipated through oxygen generator shell by the heat carried in oxygen, the oxygen entering air bag has been the gas with safe handling temperature, which increase the safe handling of chemical oxygen self-rescuer.
3) in the initial stage of that oxygen generator is simple and reliable, and cost is low.
4) quality light, be easy to carry, owing to have employed high-strength high temperature-resistant, corrosion-resistant plastic, reduce the weight of chemical oxygen self-rescuer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of initial stage oxygen supply assembly.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of inefficacy self-inspection assembly.
Fig. 5 makes a living the structural representation of oxygen canister assembly.
Fig. 6 is gas flow pattern schematic diagram.
In figure: 1-shell, 2-shielded box, 3-first filter pad, 4-air-flow divides equally pad, and 5-breathes isolated tube, 6-outer casing upper cover, 7-gland, 8-detects box, and the 9-initial stage supports storehouse, 10-battery, 11-circuit board, 12-display screen, the raw oxygen lid of 13-, 14-water tank, 15-magnet, 16-pressure sensor, 17-second filter pad.
Detailed description of the invention
Inefficacy self-monitoring chemical oxygen self-rescuer, comprises and breathes mouthpiece assembly, air bag component, oxygen generator assembly, initial stage keeping assembly, inefficacy self-inspection assembly and protection cover assembly;
Oxygen generator assembly comprises shell 1, sheath top plate is provided with the initial stage keeping storehouse 9 be communicated with enclosure, the open top in initial stage keeping storehouse 9, sheath top plate has gas vent, shell inner support have to be formed between outer casing inner wall interval, the shielded box 2 of bottom opening, the top of shielded box 2 is provided with the breathing isolated tube 5 be communicated with box house, breathes isolated tube 5 and stretches out shell from gas vent, the bottom of shielded box 2 is provided with the 3rd filter pad, and the 3rd isolating pad is placed with oxygen generating agent;
The raw oxygen lid 13 that initial stage oxygen supply assembly comprises gland 7, water tank 14 and is made up of filter, it is inner that raw oxygen lid 13 is arranged at initial stage keeping storehouse, water tank 14 is placed on raw oxygen lid 13, gland 7 is buckled in the top open part that the initial stage supports storehouse, and the bottom of gland 7 contacts with water tank 14, the below of raw oxygen lid is provided with the second filter pad 17, and raw oxygen lid 13 is also placed with oxygen generating agent;
Inefficacy self-inspection assembly comprises the detection box 8 be arranged in sheath top plate, box body is provided with pressure sensor 16 and display screen 12, battery 10 and circuit board 11 is provided with in box body, circuit board 11 is welded with microprocessor, magnetic inductor and infrared processor, magnetic inductor, infrared processor are all connected with microprocessor with pressure sensor, microprocessor is connected with display screen, and battery is powered for each device and display screen
Protection cover assembly comprises outer casing upper cover 6, and outer casing upper cover 6 covers in cover top portion, is lined with airtight circle between shell and cover top portion, and outer casing upper cover is also provided with magnet 15.
Above-mentioned inefficacy self-monitoring chemical oxygen self-rescuer, shielded box internal upper part is provided with the air-flow separated up and down by internal cavity and divides equally pad 4, and the below that air-flow divides equally pad is provided with the first filter pad 3.
Above-mentioned inefficacy self-monitoring chemical oxygen self-rescuer, oxygen generator package shell 1, air-flow are divided equally pad 4, shielded box 5 and are all adopted the corrosion-resistant PEEK plastics of high-strength high temperature-resistant, and detection box 8, outer casing upper cover 6, gland 7 adopt ABC-PC plastics.
Breathe mouthpiece assembly, the structure of air bag component known by those skilled in the art.
The interior pressure of having substituted the bad for the good in the cavity of case top lid, the value always remained unchanged or decline does not exceed set-point, just can think that the air-tightness of self-rescuer is good, namely by pressure sensor, pressure physical quantity is converted force value to electricity, electricity is converted to data again through microprocessor, compared by comparison circuit, user of service is told by result by display screen, but self-checking circuit must be reliable, and can long continuous operation, generally minimum 3 years, in order to reach this effect, have employed EFM32 series A RM32 position one chip microcomputer to realize this function, battery adopts disposable high power lithium battery ER14505, this battery can store 15 years at normal temperatures, voltage 3.6V, capacity is 2.4Ah, if used for 30 seconds every day, discharge current is 20mA, calculate in theory and can use 39 years, when EFM32ARM single-chip microcomputer operating frequency is 20MHZ, the operating current of this single-chip microcomputer is 3.6mA, remaining 16.4mA all to external circuit, can the abundance continuous operation of 3 years.EFM32 single-chip microcomputer is 900nA in deepsleep mode, is 20nA under shutdown mode, and these parameters are that the realization of inefficacy self-checking function provides basic assurance.
Each inefficacy self-monitoring chemical oxygen self-rescuer can be equipped with an infrared secret key, as long as infrared secret key is aimed at infrared processor click button, self-rescuer display screen can demonstrate this self-rescuer personal information, as: name, self-rescuer numbering, data message such as use remaining time, cavity pressure etc.
Claims (3)
1. inefficacy self-monitoring chemical oxygen self-rescuer, comprises and breathes mouthpiece assembly, air bag component, oxygen generator assembly, initial stage keeping assembly, inefficacy self-inspection assembly and protection cover assembly;
Oxygen generator assembly comprises shell (1), sheath top plate is provided with initial stage keeping storehouse (9) be communicated with enclosure, the open top at initial stage keeping storehouse (9), sheath top plate has gas vent, shell inner support have to be formed between outer casing inner wall interval, the shielded box (2) of bottom opening, the top of shielded box (2) is provided with the breathing isolated tube (5) be communicated with box house, breathe isolated tube (5) and stretch out shell from gas vent, the bottom of shielded box (2) is provided with the 3rd filter pad, and the 3rd isolating pad is placed with oxygen generating agent;
The raw oxygen lid (13) that initial stage oxygen supply assembly comprises gland (7), water tank (14) and is made up of filter, it is inner that raw oxygen lid (13) is arranged at initial stage keeping storehouse, water tank (14) is placed on raw oxygen lid (13), gland (7) is buckled in the top open part that the initial stage supports storehouse, and the bottom of gland (7) contacts with water tank (14), the below of raw oxygen lid is provided with the second filter pad (17), and raw oxygen lid (13) is also placed with oxygen generating agent;
Inefficacy self-inspection assembly comprises the detection box (8) be arranged in sheath top plate, box body is provided with pressure sensor (16) and display screen (12), battery (10) and circuit board (11) is provided with in box body, circuit board (11) is welded with microprocessor, magnetic inductor and infrared processor, magnetic inductor, infrared processor are all connected with microprocessor with pressure sensor, microprocessor is connected with display screen, and battery is powered for each device and display screen
Protection cover assembly comprises outer casing upper cover (6), and outer casing upper cover (6) covers in cover top portion, is lined with airtight circle between shell and cover top portion, outer casing upper cover is also provided with magnet (15).
2. inefficacy self-monitoring chemical oxygen self-rescuer according to claim 1, it is characterized in that shielded box internal upper part is provided with the air-flow separated up and down by internal cavity and divides equally pad (4), the below that air-flow divides equally pad is provided with the first filter pad (3).
3. inefficacy self-monitoring chemical oxygen self-rescuer according to claim 2, it is characterized in that oxygen generator package shell (1), air-flow divides equally pad (4), shielded box (5) all adopts the corrosion-resistant PEEK plastics of high-strength high temperature-resistant, detect box (8), outer casing upper cover (6), gland (7) adopt ABC-PC plastics.
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|---|---|---|---|
| CN201510569526.6A CN105056421B (en) | 2015-09-09 | 2015-09-09 | Fail self-monitoring chemical oxygen self-rescuer |
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|---|---|---|---|
| CN201510569526.6A CN105056421B (en) | 2015-09-09 | 2015-09-09 | Fail self-monitoring chemical oxygen self-rescuer |
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| CN105056421A true CN105056421A (en) | 2015-11-18 |
| CN105056421B CN105056421B (en) | 2018-07-17 |
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| CN105056421B (en) | 2018-07-17 |
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