CN106338005B - A kind of breathing air supply system - Google Patents

A kind of breathing air supply system Download PDF

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Publication number
CN106338005B
CN106338005B CN201610687319.5A CN201610687319A CN106338005B CN 106338005 B CN106338005 B CN 106338005B CN 201610687319 A CN201610687319 A CN 201610687319A CN 106338005 B CN106338005 B CN 106338005B
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CN
China
Prior art keywords
air
pressure
main line
gas
accumulator
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Expired - Fee Related
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CN201610687319.5A
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Chinese (zh)
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CN106338005A (en
Inventor
綦光
任鹏波
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Beijing Yian Biotechnology Co ltd
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Beijing Yi Mei Hua Science And Technology Co Ltd
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Priority to CN201610687319.5A priority Critical patent/CN106338005B/en
Publication of CN106338005A publication Critical patent/CN106338005A/en
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Publication of CN106338005B publication Critical patent/CN106338005B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F17C2265/012—Purifying the fluid by filtering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The present invention provides a kind of breathing air supply system (100), has and is connected to outside air in input terminal (11) and is connected to the main line (1) with gas unit in output end (12), including：Inlet duct (2a, 2b) is used for from ambient inlet air and compressed air；Pre-processing device (3a, 3b) comprising for the drying device (31a, 31b) of dry air, the primary air accumulator (32a, 32b) for temporarily storing air and for filtering air in undesirable ingredient filter device (33a, 33b)；Gas monitor equipment (4) comprising detection device (41) for detecting the content of one or more ingredients in air and for analyzing testing result and sending out the Analysis Control Unit (42) of control signal according to analysis result；Two level air accumulator (5), is used for the pressure of buffer air；And temperature control equipment (6) comprising the heating device (62) for the cooling device (61) of cooling air and for heating air.

Description

A kind of breathing air supply system
Technical field
This patent disclosure relates generally to protective gear, more particularly to a kind of breathing air supply system.
Background technology
Some poisonous and hazardous danger may be stored in biocontainment laboratory, chemical laboratory and certain medical spaces Substance, the staff for being tested and being operated in these places need dress safety device so as to these danger quality guarantees Hold isolation.For example, in the laboratory of level Four biosafety level (BSL-4), the necessary whole body wearing air-tightness of staff Positive-pressure protective clothes, and breathed by being connected to the lung ventilator inside positive-pressure protective clothes.It is supplied to protective garment or lung ventilator Device can be staff's respectively air supply system of portable gas bomb or central gas supply.The air supply system of concentration is general Air is collected from ambient atmosphere, is transported in protective garment again after carrying out a series of processing to collected air.In the world, European standard EN12021 is generally used for the quality standard of breathing air, wherein regulation carbon monoxide content is low by volume In 15/1000000ths, carbon dioxide content is less than 500/1000000ths by volume, and oxygen content is by volume in percent 20 Hes Between percent 22.
Article《The integrated positive-pressure protective clothes and life support system in the laboratories BSL-4》(《Health care is equipped》2005 The o. 11th 31-32 of volume 26, page 46) disclose a kind of life support system to integrated positive-pressure protective clothes gas supply, including master Air supply system and spare air supply system.Main air supply system includes air compressor machine, air freezing drier, compressed air reservoir, pressure Contracting air oil water separator, filtration system, analysis and Control system, security alerting system, heater, cooler, connecting pipe etc.. Spare air supply system includes high-pressure cylinder group, gas bus-bar and switch valve etc..This life support system is dependent on scene Staff operate and control on the spot, is unable to the operation conditions of remote monitoring system, can not be realized according to gas supply situation Autostop, exhaust or switching.In addition, the gas pressure fluctuation of this system feed is larger.
Invention content
It is an object of the present invention to provide a kind of more efficient comprehensive and air supply more safety and stability of system control Breathing air supply system.
For this purpose, the present invention provides a kind of breathing air supply system on the one hand, have input terminal be connected to outside air and It is connected to the main line with gas unit in output end, including：Inlet duct is arranged in the input terminal of main line, is used for from outer Boundary sucks air and compressed air；Pre-processing device is arranged in inlet duct downstream, includes the dry dress for dry air Set, the primary air accumulator for temporarily storing air and for filtering air in undesirable ingredient filter device；Gas is supervised Equipment is controlled, is arranged on the main line in pre-processing device downstream, includes for detecting containing for one or more ingredients in air The detection device of amount and for analyze testing result and according to analysis result send out control signal Analysis Control Unit；Two level is stored up Gas tank is arranged on the main line in pre-processing device downstream, is used for the pressure of buffer air；And temperature control equipment, It is arranged on the main line in pre-processing device downstream, includes the heating for the cooling device of cooling air and for heating air Device.
Breathing air supply system through the invention can control whole system more fully hereinafter so that air feed quality can be with confession The operation of gas system is directly related, avoids a large amount of manual operations, is advantageously implemented higher safety and stability.In addition, this The breathing air supply system of invention can substantially reduce the pressure oscillation of supply gas, to improve by the way that two level air accumulator is arranged With the comfort level of gas unit.
According to a preferred embodiment of the present invention, further include auxiliary gas switching equipment, auxiliary gas switching equipment packet It includes the spare caisson for storing auxiliary gas and is arranged between spare caisson and main line and can be selectively Spare caisson is switched to the switching device of main line.It, can be in air feed quality by the way that auxiliary gas switching equipment is arranged To provide auxiliary gas with gas unit in the case of underproof, to make staff's having time maintenance breathing air supply system or from It is withdrawn in laboratory.This brings safety and reliability for breathing air supply system.
According to a preferred embodiment of the present invention, the inlet duct is associated to two level air accumulator, when two level gas storage When pressure in tank is less than first pressure value, one of inlet duct starts, when the pressure in two level air accumulator is higher than second pressure When value, inlet duct is shut down.It is arranged by this association, the automatization level of air supply system can be improved, and then promote safety Property and operational efficiency.
According to a preferred embodiment of the present invention, inlet duct includes the first inlet duct and the second inlet duct, in advance Processing equipment includes the first pre-processing device and the second pre-processing device；Input terminal has first input end and the second input terminal, Their input terminals respectively as in parallel the first bye-pass and the second bye-pass；First bye-pass includes the first air inlet of concatenation Device and the first pre-processing device, the second bye-pass include concatenation the second inlet duct and the second pre-processing device, first Pipeline and the second bye-pass are incorporated into gas monitor equipment upstream in main line.By be arranged two groups of inlet ducts in parallel and Pre-processing device can increase the redundancy of air supply system, to improve the safety of air supply system and the lasting stability of gas supply Property.
According to a preferred embodiment of the present invention, two level air accumulator is equipped with for being more than peace in two level gas storage pressure inside the tank The safety valve of pressure release is opened when total head, the drain valve for the condensed water in two level air accumulator to be periodically discharged, is used for native monitoring The pressure gauge of two level gas storage pressure inside the tank and pressure sensor for remotely monitor two level gas storage pressure inside the tank.Pacified by being arranged Full valve, drain valve, pressure gauge and pressure sensor can promote the controllability of two level air accumulator, entire to further be promoted The operability and maintainability of system.
According to a preferred embodiment of the present invention, primary air accumulator is equipped with for being more than peace in primary gas storage pressure inside the tank The safety valve of pressure release, the drain valve for the condensed water in primary air accumulator to be periodically discharged are opened when total head and for monitoring primary The pressure gauge of gas storage pressure inside the tank.By the way that safety valve, drain valve and pressure gauge is arranged, the controllable of primary air accumulator can be promoted Property, to further promote the operability and maintainability of whole system.
According to a preferred embodiment of the present invention, pre-processing device further includes the dew of the dew-point temperature for detecting air Point detection device, dew-point detecting device are arranged in the downstream of filter device.By the way that dew-point detecting device is arranged, can monitor The humidity of compressed air, to which the gas for making system supply has the degree of drying for being more suitable for human body respiration.
According to a preferred embodiment of the present invention, temperature control equipment further includes for cooling device and heating device The bypass duct that bypass is provided, for making air around apparatus for supercooling and heating device when temperature need not be adjusted.By setting Bypass duct is set, the compressed air require Jing Guo whole system can be improved when not needing temperature and adjusting, avoids waste system Resource.
The present invention provides a kind of Supply Method for breathing air on the other hand, includes the following steps：A. from the external world Air, and compressed air are sucked in air；B. dry air；C. the air after drying is temporarily stored in primary air accumulator； D. undesirable ingredient in air is filtered out；E. the content of one or more ingredients in air is detected, and exceeds specified model in content Stop conveying air when enclosing；F. two level air accumulator is passed air through to fluctuate with compensator or trimmer pressure；G. the temperature of air is adjusted to uncommon Prestige value；H. air is exported to gas unit.
It, can be more efficiently and safely to gas unit by the Supply Method according to the present invention for breathing air Such as positive-pressure protective clothes supply avoids supplied air that larger pressure oscillation occurs for breathing air, to raising gas The comfort of personnel.
According to a preferred embodiment of the present invention, step a is associated to two level air accumulator, the pressure in two level air accumulator When power is less than first pressure value, start sucking air, when the pressure in two level air accumulator is higher than second pressure value, stops sucking Air.It is arranged by this association, the automatization level of air supply system can be improved, and then promote safety and operational efficiency.
Description of the drawings
The present invention above and other feature and advantage by by referring to the drawings to the embodiment of the present invention specifically Shown in bright, wherein：
Fig. 1 shows the general illustration of breathing air supply system according to an embodiment of the invention；
Fig. 2 shows the partial schematic diagrams for breathing one of air supply system filter device according to Fig. 1 embodiments；
Fig. 3 shows the partial schematic diagram of the gas monitor equipment of the breathing air supply system according to Fig. 1 embodiments；
Fig. 4 shows the partial schematic diagram of the temperature control equipment of the breathing air supply system according to Fig. 1 embodiments；
Fig. 5 shows the partial schematic diagram of the auxiliary gas switching equipment of the breathing air supply system according to Fig. 1 embodiments.
In the drawings, same or analogous reference numeral indicates same or analogous element.
Specific implementation mode
Referring to Fig. 1, the general illustration of breathing air supply system 100 according to an embodiment of the invention is shown.As schemed Show, breathing air supply system 100 is whole to be laid out in connection in series-parallel convolution, and each equipment of system is arranged along main line 1.Main line 1 have be connected to ambient atmosphere with the input terminal 11 of input air and be connected to with gas unit (not shown) such as positive-pressure protective clothes With the output end 12 of delivery air.Main line 1 in 11 branch around of input terminal at the first bye-pass 1a and the second bye-pass 1b, it Be respectively provided with first input end 11a and the second input terminal 11b, and be incorporated into main line 1 in 4 upstream of gas switching equipment. The first inlet duct 2a and the first pre-processing device 3a have been sequentially arranged on the first bye-pass 1a, on the second bye-pass 1b according to Secondary to be disposed with the second inlet duct 2b and the second pre-processing device 3b, they are with the first inlet duct 2a and the first pre-processing device 3a structures are identical.In other words, breathing air supply system 100 according to the present invention includes that two groups of inlet ducts and pretreatment in parallel are set It is standby.In this two groups of inlet ducts and pre-processing device downstream, gas monitor equipment 4, two has also been sequentially arranged on the main line 1 Grade air accumulator 5, temperature control equipment 6, auxiliary gas switching equipment 7.It should be understood that breathing air supply system 100 according to the present invention The order of placement of various pieces be not limited thereto, other possible arrangement forms and order of placement be also it is contemplated that.
First inlet duct 2a according to the present invention is arranged in the input terminal 11a of main line 1, for being sucked from ambient atmosphere Then fresh air compresses air for storing and being further processed.In the present embodiment, the first inlet duct 2a includes sky Air compressor, such as screw air compressor.The operation power of first inlet duct 2a is to gas unit such as positive-pressure protective clothes While usage quantity and air pressure in protective garment and gas consumption have a direct impact.In the present embodiment, the first air inlet The operation power of device 2a should be able to meet the requirement of 6 sets of positive-pressure protective clothes simultaneously, such as the output pressure of system is 6 Bar.In addition, the first inlet duct 2a can guarantee that the inlet pressure of positive-pressure protective clothes is 5 bars, and can guarantee in positive-pressure protective clothes Pressure relative to the air pressure in application places such as biocontainment laboratory be positive pressure, for example, 5 millibars.For this purpose, the first air inlet fills The supply gas pressure for setting 2a outputs can be 10 bars.The air demand of first inlet duct 2a should ensure that supplied air is passing through The air demand reached in each protective garment after each section loss of breathing air supply system 100 meets following condition：1) meet one The respiratory demand of normal adult；2) meet human-body radiating demand, this makes the rate of ventilation in protective garment be usually not less than 20 It is secondary per hour；3) ensure in the case of protective garment breakage, the flow direction of air-flow is to flow out from inside to outside.For example, every positive pressure is anti- Air demand in shield clothes can reach 0.5 cubic meters per minute.It is stood for this purpose, the air demand of the first inlet duct 2a should be no less than 3 Square rice is per minute.In the present embodiment, the structure of the second inlet duct 2b is identical with the first inlet duct 2a.
Preferably, first and second inlet duct 2a, 2b are controlled by automatic control equipment.Described automatically control sets It is standby to be set to, control first and second according to the air pressure in the main line 1 of breathing air supply system 100 or other parts The start and stop of inlet duct 2a, 2b or watt level, such as add automatically with making first and second inlet duct 2a, 2b and pressure correlation Load/unloading.In the present embodiment, the automatic control equipment can online or remote setting parameter and control device state, if There is man-machine interface, and there are warning output and telecommunications functions.
In the present embodiment, first and second inlet duct 2a, 2b are mutually redundant, alternate run in use.This friendship It can be realized by the automatic control equipment for operation.For example, the first and second inlet duct 2a of automatic control equipment record, 2b respective accumulated running times, and daily priority level is arranged alternately to first and second inlet duct 2a, 2b.At one day In, one of first and second inlet duct 2a, 2b are in preferential operating status, wherein another be used as guest machine, in unloading Carry operating status.It is then opposite in next day.
As shown in Figure 1, the first pre-processing device 3a according to the present invention includes being done along what the first bye-pass 1a was sequentially arranged Dry device 31a, primary air accumulator 32a and filter device 33a.
In the present embodiment, drying device 31a includes freeze drier, is used for the pressure leak source temperature of compressed air Degree is reduced to 3 degrees Celsius or less so that suitable humidity is kept supplied to the air of gas unit, to improve human body respiration Comfort level.Drying device 31a is adjustable to set different dew-point temperatures.The first branch pipe in the first downstreams pre-processing device 3a Dew-point detecting device 34a such as dew point transducers, the dew-point temperature for detecting dried air can be set on the 1a of road.It can lead to Crossing automatic control device keeps dew-point detecting device 34a associated with drying device 31a so that drying device 31a is automatically according to dew The degree of drying of the testing result control air of point detection device 34a, to use the air dew point temperature at gas unit to protect automatically It holds in optimum range, it is wet with the air in gas unit such as positive-pressure protective clothes to avoid the humidity of ambient atmosphere from directly affecting Degree.Optionally, gs-oil separator (not shown) can be also set in the upstreams drying device 31a, for isolating in compressed air Oil, to protect drying machine.
In the present embodiment, primary air accumulator 32a has 600 liters of volume, enough through overdrying for temporarily storing The air of dry device 31a dryings avoids the first inlet duct 2a to stablize air source to the offer of gas unit is prolonged enough Startup and shut down the gas supply situation directly influenced with gas unit.As shown in Figure 1, primary air accumulator 32a includes being set to top The safety valve 321a in portion is more than that safety value is opened with excessively high in canister for the air pressure in primary air accumulator 32a Pressure.Primary air accumulator 32a further includes the drain valve 323a for being set to bottom, and drain valve 323a is, for example, solenoid valve, is used for Condensed water that may be present in the primary air accumulator 32a of periodically discharge.Be additionally provided on primary air accumulator 32a pressure gauge 322a for Operating personnel monitor the pressure in tank in real time.
Fig. 2 shows the filter device 33a according to the first pre-processing device 3a of Fig. 1 embodiments.As depicted in figs. 1 and 2, mistake It includes the coarse filter 331a being sequentially arranged on the first bye-pass 1a, the first fine filter 332a, activated carbon mistake to filter device 33a Filter 333a, catalyzing carbon monoxide filter 334a, carbon dioxide filter 335a and the second fine filter 336a.
In the present embodiment, coarse filter 331a includes 1 micron filter, can filter out flue dust, steam, the oil in air Mist, solid and microorganism.For 1 micron of particle of grain size, the filter efficiency of coarse filter 331a can reach percent 99.925.First fine filter 332a includes 0.01 micron filter, can filter out flue dust subtleer in air, steam, oil Mist, solid and microorganism.For 0.01 micron of particle of grain size, the filter efficiency of the first fine filter 332a can reach percentage 99.9999.Active carbon filter 333a can absorb the peculiar smell in compressed air.It is set in catalyzing carbon monoxide filter 334a There is catalyst, the chemical reaction of carbon dioxide is oxidized to for the carbon monoxide in catalytic air.Carbon dioxide filter 335a can absorb the carbon dioxide that the carbon dioxide for including originally in air and carbon monoxide generate after catalysis.Second smart mistake Filter 336a can filter out issuable secondary micro- in catalyzing carbon monoxide filter 334a and carbon dioxide filter 335a Grain pollutant.Similarly, the second fine filter 336a can also reach percent for the filter efficiency of 0.01 micron of grain size 99.9999。
By the filtering of filter device 33a, solid in compressed air and liquid particle in the first bye-pass 1a will be low In 0.01 milligram every cubic metre, oil moisture content is less than 0.003 milligram every cubic metre, and free from extraneous odour, carbon monoxide content is by volume Less than 15/1000000ths, carbon dioxide content is less than 500/1000000ths by volume.
In the present embodiment, filter device 33a is filtered the compressed air from the first inlet duct 2a, the pressure The pressure of contracting air is, for example, 1 bar to 10 bars.For this purpose, each filter of filter device 33a type selecting should with first into The air demand (such as 3 cubic meters per minutes) of device of air 2a matches.The operating temperature of filter device 33a can be 1.5 to 30 Degree Celsius.
Since coarse filter 331a and first and second fine filter 332a, 336a are often easy to happen blocking, In the present embodiment, coarse filter 331a and first and second fine filter 332a, 336a is respectively equipped with pressure difference monitoring dress 337a such as differential pressure pickups are set, the stopping state of Dynamic Announce filter are used for, convenient for replacing filter core at any time.In addition, active The filter core of carbon filter 333a, catalyzing carbon monoxide filter 334a and carbon dioxide filter 335a should regularly replace, such as Annual or replacement in every 2000 hours is primary.
In the present embodiment, be respectively equipped on the first bye-pass 1a before and after filter device 33a a sample tap 35a, 36a, for being sampled at any time to the compressed air before and after being filtered through filter device 33a for site operation personnel, with The operational efficiency of air quality and filter device 33a is monitored by manual type.
Similarly, as shown in Figure 1, the second pre-processing device 3b according to the present invention includes along the second bye-pass 1b successively cloth Drying device 31b, the primary air accumulator 32b and filter device 33b set.
In the present embodiment, drying device 31b includes freeze drier, is used for the pressure leak source temperature of compressed air Degree is reduced to 3 degrees Celsius or less so that suitable humidity is kept supplied to the air of gas unit, to improve human body respiration Comfort level.Drying device 31b is adjustable to set different dew-point temperatures.The second branch pipe in the second downstreams pre-processing device 3b Dew-point detecting device 34b such as dew point transducers, the dew-point temperature for detecting dried air can be set on the 1b of road.It can lead to Crossing automatic control device keeps dew-point detecting device 34b associated with drying device 31b so that drying device 31b is automatically according to dew The degree of drying of the testing result control air of point detection device 34b, to use the air dew point temperature at gas unit to protect automatically It holds in optimum range, it is wet with the air in gas unit such as positive-pressure protective clothes to avoid the humidity of ambient atmosphere from directly affecting Degree.Optionally, gs-oil separator (not shown) can be also set in the upstreams drying device 31b, for isolating in compressed air Oil, to protect drying machine.
In the present embodiment, primary air accumulator 32b has the volume of 600L, for temporarily storing enough process dryings The air of device 31b dryings avoids the second inlet duct 2b's to stablize air source to the offer of gas unit is prolonged enough Start and shut down the gas supply situation directly influenced with gas unit.As shown in Figure 1, primary air accumulator 32b includes being set to top Safety valve 321b, in primary air accumulator 32b air pressure be more than safety value open with the mistake high pressure in canister Power.Primary air accumulator 32b further includes the drain valve 323b for being set to bottom, and drain valve 323b is, for example, solenoid valve, for fixed Condensed water that may be present in the primary air accumulator 32b of phase discharge.Pressure gauge 322b is additionally provided on primary air accumulator 32b for behaviour Make the pressure in personnel's real time monitoring tank.
Fig. 2 equally shows the filter device 33b of the second pre-processing device 3b according to Fig. 1 embodiments.Such as Fig. 1 and Fig. 2 institutes Show, filter device 33b includes the coarse filter 331b being sequentially arranged on the second bye-pass 1b, the first fine filter 332b, work Property carbon filter 333b, catalyzing carbon monoxide filter 334b, carbon dioxide filter 335b and the second fine filter 336b.
In the present embodiment, coarse filter 331b includes 1 micron filter, can filter out flue dust, steam, the oil in air Mist, solid and microorganism.For 1 micron of particle of grain size, the filter efficiency of coarse filter 331b can reach percent 99.925.First fine filter 332b includes 0.01 micron filter, can filter out flue dust subtleer in air, steam, oil Mist, solid and microorganism.For 0.01 micron of particle of grain size, the filter efficiency of the first fine filter 332b can reach percentage 999.9999.Active carbon filter 333b can absorb the peculiar smell in compressed air.In catalyzing carbon monoxide filter 334b Equipped with catalyst, the chemical reaction of carbon dioxide is oxidized to for the carbon monoxide in catalytic air.Carbon dioxide filter 335b can absorb the carbon dioxide that the carbon dioxide for including originally in air and carbon monoxide generate after catalysis.Second smart mistake Filter 336b can filter out issuable secondary micro- in catalyzing carbon monoxide filter 334b and carbon dioxide filter 335b Grain pollutant.Similarly, the second fine filter 336b can also reach percent for the filter efficiency of 0.01 micron of grain size 999.9999。
By the filtering of filter device 33b, solid in compressed air and liquid particle in the second bye-pass 1b will be low In 0.01 milligram every cubic metre, oil moisture content is less than 0.003 milligram every cubic metre, and free from extraneous odour, carbon monoxide content is by volume Less than 15/1000000ths, carbon dioxide content is less than 500/1000000ths by volume.
In the present embodiment, filter device 33b is filtered the compressed air from the second inlet duct 2b, the pressure The pressure of contracting air is, for example, 1 bar to 10 bars.For this purpose, each filter of filter device 33b type selecting should with second into The air demand (such as 3 cubic meters per minutes) of device of air 2b matches.The operating temperature of filter device 33b can be 1.5 to 30 Degree Celsius.
Since coarse filter 331b and first and second fine filter 332b, 336b are often easy to happen blocking, In the present embodiment, coarse filter 331b and first and second fine filter 332b, 336b is respectively equipped with pressure difference monitoring dress 337b such as differential pressure pickups are set, the stopping state of Dynamic Announce filter are used for, convenient for replacing filter core at any time.In addition, active The filter core of carbon filter 333b, catalyzing carbon monoxide filter 334b and carbon dioxide filter 335b are answered annual or every 2000 small Shi Genghuan is primary.
In the present embodiment, be respectively equipped on the second bye-pass 1b before and after filter device 33b a sample tap 35b, 36b, for being sampled at any time to the compressed air before and after being filtered through filter device 33b for site operation personnel, with The operational efficiency of air quality and filter device 33b is monitored by manual type.
The present invention is arranged respectively with the concatenated two groups of pre-processing devices of two groups of inlet ducts, can increase to compressed air Processing speed and the flow for increasing the compressed air by main line 1, are more supplied with gas unit so as to give.
Fig. 3 shows the gas monitor equipment 4 of the breathing air supply system 100 according to the present embodiment.As shown in figures 1 and 3, gas Body monitoring device 4 is arranged on the main line 1 in the convergent point downstream of described first and second bye-passes 1a, 1b, generally includes use Detection device 41 in detection compressed air ingredient, the analysis and Control for being analyzed testing result and being sent out control signal Device 41 and for according to control signal control main line 1 executive device 43.
In the present embodiment, detection device 41 is connected to main line 1 to acquire compressed air sample in real time from main line 1, And include the Sensor box that one or more sensors are equipped in it.For example, being equipped with carbon monoxide transducer, two in Sensor box Aoxidize carbon sensor and oxygen sensor.In this way, detection device 41 can be in on-line real-time measuremen compressed air carbon monoxide, The content of carbon dioxide and oxygen.It should be understood that other gas detection sensors can also be installed in Sensor box as needed, use In the quality of detection compressed air, the purposes of extension gas monitor equipment 4.For example, the error range of these sensors is positive and negative Within percent 2, and have calibration condition and standard gas source interface to carry out on-line proving.
Analysis Control Unit 42 includes analyzer and controller.The detection data that analyzer can send detection device 41 It is analyzed in real time, control signal can be sent out according to analysis result for controller so that executive device 43 executes corresponding operating.Control Device can also send out alarm signal.
Executive device 43 includes the main line switching mechanism 431 and main line discharging mechanism being separately positioned on main line 1 432.The break-make for the control signal control main line 1 that main line switching mechanism 431 can be sent out according to Analysis Control Unit 42, and Main line discharging mechanism 432 can be discharged according to the control signal-selectivity that Analysis Control Unit 42 is sent out in main line 1 Compressed air.
Main line switching mechanism 431 includes the pneumatic operated valve 4311 being arranged on main line 1, control piper 4312 and the first electricity Magnet valve 4313.Pneumatic operated valve 4311 can control the break-make of main line 1.4312 one end of control piper connects pneumatic operated valve 4311, another Termination leads to the main line 1 of 4311 upstream of pneumatic operated valve.First solenoid valve 4313 is arranged on control piper 4312, for according to control Signal controls the break-make of control piper 4312.When the analysis of testing result of the Analysis Control Unit 42 to carrying out self-test device 41 is When air qualification, Analysis Control Unit 42 sends out control signal, so that the first solenoid valve 4313 is powered and opens, to connect control piper 4312, to allow pneumatic operated valve 4311 to open and connect main line 1.When Analysis Control Unit 42 is to carrying out the detection of self-test device 41 As a result when analysis is that air is unqualified, Analysis Control Unit 42 sends out control signal, and the power-off of the first solenoid valve 4313 is made to close, To disconnect control piper 4312, to allow pneumatic operated valve 4311 to close and disconnect main line 1.In 41 failure of detection device, analysis control When 42 failure of device processed and power-off, the first solenoid valve remains off, to make pneumatic operated valve 4311 remain turned-off, Prevent the compressed gas in main line 1 from exporting.
Main line discharging mechanism 432 includes discharge pipe 4321, second solenoid valve 4322 and hand-operated valve 4323.Discharge pipe 4321 one end are connected to main line 1, and the other end is connected to second solenoid valve 4322, and hand-operated valve 4323 is arranged in centre.Hand Dynamic valve 4323 generally maintains a normally open state.When the analysis result of Analysis Control Unit 42 is that gas is unqualified, analysis and Control dress Set 42 send out control signal make second solenoid valve 4322 be powered open, to outwardly discharge main line 1 in unqualified gas Body.When the analysis result of Analysis Control Unit 42 is gas qualification, Analysis Control Unit 42 sends out control signal and makes second The power-off of solenoid valve 4322 is closed, to not outwardly discharge gas.If the failure of second solenoid valve 4322 at this time can not close, can By hand-operated valve 4323 come hand off discharge pipe 4321.
The alarm signal of the controller of Analysis Control Unit 42 can be exported to remote monitoring alarm device.The long-range prison The alarm of control warning device can be divided into three-level alarm, and alarming value can be set as needed.Contain for example, working as oxygen in compressed air Amount by volume be less than 19.5 percent, carbon monoxide content by volume be higher than 8/1000000ths and/or carbon dioxide content press When stereometer is higher than 400/1000000ths, start level-one alarm；When oxygen content is less than percent by volume in compressed air 19, carbon monoxide content by volume be higher than 12/1000000ths and/or carbon dioxide content by volume be higher than 450/1000000ths When, start secondary alarm；When oxygen content is less than 18.5 percent, carbon monoxide content by volume by volume in compressed air Meter starts three-level alarm higher than 15/1000000ths and/or when carbon dioxide content is higher than 500/1000000ths by volume.In addition, The different operation of different alert levels can also be set as needed.For example, level-one alarm is common alarm, alarm signal is only shown There are hidden danger by breath prompt user；Secondary alarm is fault alarm, display alarm information, while preventing from starting the first and second air inlets Device 2a, 2b；Three-level alarm is that catastrophe failure is alarmed, and sends out sound-light alarm, is simultaneously stopped first and second inlet duct 2a, 2b Work, and empty the gas of monitoring point upstream.
As shown in Figure 1, further including being arranged in 4 downstream of gas monitor equipment according to the breathing air supply system 100 of the present embodiment Main line 1 on two level air accumulator 5.Similar with primary air accumulator 32a, 32b, two level air accumulator 5 includes being arranged at top Safety valve 51, for opening pressure release when pressure inside the tank is more than safety value.Two level air accumulator 5 further includes draining arranged at the bottom Such as solenoid valve of valve 53, for condensed water that may be present in regular drain tank.52 He of pressure gauge is additionally provided on two level air accumulator 5 Pressure sensor 54.Pressure gauge 52 is used to monitor the pressure in two level air accumulator 5, pressure sensor on the spot for field personnel 54 by the signal of pressure inside the tank for being sent to remote monitoring system, for the pressure in remotely monitor two level air accumulator 5.Two level The volume of air accumulator 5 is, for example, 2000 liters, can reduce the pressure oscillation of breathing 100 supplied air of air supply system as far as possible.
In the present embodiment, two level air accumulator 5 can be associated with first and second inlet duct 2a, 2b so that two level is stored up Pressure in gas tank 5 can be used for controlling the start and stop of first and second inlet duct 2a, 2b.For example, when in two level air accumulator 5 When pressure is less than 7.5 bars, the first inlet duct 2a or the second inlet duct 2b start；When the pressure in two level air accumulator 5 is higher than 9 Ba Shi, the first inlet duct 2a and the second inlet duct 2b are shut down.
Fig. 4 shows the temperature control equipment 6 of the breathing air supply system 100 according to Fig. 1 embodiments.As shown in Figure 1 and Figure 4, Temperature control equipment 6 according to the ... of the embodiment of the present invention is arranged in 5 downstream of two level air accumulator.Temperature control equipment 6 includes setting successively Set cooling device 61 and heating device 62 on main line 1.In the present embodiment, cooling device 61 includes freeze drier, Compressed air enters freeze drier and carries out heat exchange, is then discharged out.Heating device 62 includes two heating being arranged in parallel Device 621, the heater 621 are, for example, resistance type heater.
Temperature control equipment 6 further includes being arranged heating in the first temperature sensor 63 of 61 upstream of cooling device and setting The second temperature sensor 64 in 62 downstream of device, for detecting initial temperature and process before compressed air is adjusted through excess temperature Final temperature after temperature adjusting.Temperature control equipment 6 further includes temperature controller (not shown), such as programmable ratio Integral differential (PID) controller, the temperature for being detected according to the first and second temperature sensors 63,64 control cooling device 61 and heating device 62 operation.The control is control start and stop for the cooling device 61 including freeze drier, right It is control power for the heating device 62 including resistance type heater, such as passes through two silicon-controlled continuous adjustment resistance-types The power of heater.Temperature controller can be set to, when the temperature that the first temperature sensor 63 detects is lower than target temperature When more than first temperature value (such as 3 degrees Celsius), such as when the temperature reaches 21 degrees Celsius, cooling device 61 is shut down；When the first temperature When more than the temperature second temperature value higher than target temperature (such as 5 degrees Celsius) that degree sensor 63 detects, such as the temperature reaches At 29 degrees Celsius, heating device 62 is shut down.It follows that the temperature measured in the first temperature sensor 63 is close to target temperature When, cooling device 61 and heating device 62 are worked at the same time or are worked simultaneously with the half of rated power, to prominent in air themperature Cooling more corresponding than unlatching or heating device faster temperature tune are obtained when change by closing corresponding cooling or heating device Energy saving power.Whereby, temperature control equipment 6 according to the present invention can be kept to the momentary variations in temperature of big flow compressed air Adaptability, such as heating that in the case of maximum flow rate can be with 15 degrees Celsius in the short time and cooling capacity.In addition can think It arrives, temperature control equipment 6 according to the present invention can also be arranged to, when the temperature that the first temperature sensor 63 detects compares target When more than temperature low first temperature value, make compressed air without apparatus for supercooling 61 and merely through heating device 62；When the first temperature When more than the temperature second temperature value higher than target temperature that degree sensor 63 detects, make compressed air without heating device 62 And merely through cooling device 61.This set is further conducive to quickly cope with the temperature jump of big flow compressed air.
The temperature of compressed air by 6 temperature adjustment of temperature control equipment is adjustable in the range of 18 to 30 degrees Celsius.For example, Temperature control equipment 6 can control the temperature of compressed air in 24 degrees centigrades, and temperature fluctuation range is no more than 2 degrees Celsius, Control between 23 to 25 degrees Celsius.Temperature according to the temperature control equipment 6 of the present embodiment for compressed gas is adjusted, should The pressure of compressed gas is for example between 1 bar to 10 bars.
As shown in Figure 1, the side according to the breathing air supply system 100 of the present embodiment in temperature control equipment 6 is equipped with bypass Pipeline, for making compression gas supply convey around temperature control equipment 6 when that need not be adjusted into trip temperature.
Fig. 5 shows the auxiliary gas switching equipment 7 of the breathing air supply system 100 according to Fig. 1 embodiments.Such as Fig. 1 and Fig. 5 institutes Show, auxiliary gas switching equipment 7 according to the present invention is arranged in 6 downstream of temperature control equipment, including stores auxiliary gas Spare caisson 71 and the switching device 72 being arranged between spare caisson 71 and main line 1.In the present embodiment, standby With caisson 71 for example including bailout bottle.The operation of switching device 72 can selectively connect spare caisson 71 To main line 1, gas unit feed auxiliary gas is used in case of emergency give.According to ground of the invention auxiliary gas switching equipment 7 further include pressure switch 73 and control power supply (not shown).Pressure switch 73, control power supply and switching device 72 pass through mutually electricity Connection forms the control circuit for controlling switching device.Pressure switch 73 is automatic according to the gas pressure situation in main line 1 Make-and-break contact, control power supply selectively give switching device 72 to power by pressure switch 73.Control power supply and switching The operation that switching device 72 is determined whether connection of device 72.The supply voltage for controlling power supply is, for example, 24 volts.
In the present embodiment, switching device 72, control power supply and pressure switch 73 are associated into, when pressure switch 73 measures When air pressure in main line 1 is less than rated value, pressure switch 73 is closed, so that control power supply is disconnected with switching device 72, To which switching device 72 makes spare caisson 71 be connected with main line 1；When pressure switch 73 measures the air pressure in main line 1 When power is higher than rated value, pressure switch 73 is opened so that control power supply and switching device 72 are connected, to switching device 72 make it is standby It is disconnected with caisson 71 and main line 1.
As shown in Figure 1 and Figure 5, switching device 72 includes connecting the first spare pipe of spare caisson 71 and main line 1 Road 721.Pneumatic operated valve 722 is provided on first spare duct 721 to control the break-make of the first spare duct 721.Switching device 72 Further include control piper 723, one end connects pneumatic operated valve 722, and the other end is connected to the first spare duct 721 and main line 1 On the main line 1 of tie point upstream.When control piper 723 is ventilated, pneumatic operated valve 722 remains turned-off to disconnect the first spare pipe Road 721, when control piper 723 is died, pneumatic operated valve 722 is opened to connect the first spare duct 721.Control piper 723 Break-make realizes that solenoid valve 724 passes through pressure switch 73 and control power supply by the solenoid valve 724 being arranged on control piper 723 It connects.When the pressure that pressure switch 73 measures the air in main line 1 is less than the first rated value, pressure switch 73 is closed, with So that control power supply is disconnected with solenoid valve 724, solenoid valve 724 is caused to be closed and disconnect control piper 723, to make pneumatic operated valve 722 It opens and connects the first spare duct 721；When the pressure that pressure switch 73 measures the air in main line 1 is higher than the second rated value When, pressure switch 73 is opened, so that control power supply is connected with solenoid valve 723, is caused solenoid valve 724 to be opened and is connected control piper 723, to make pneumatic operated valve 722 close and disconnect the first spare duct 721.First rated value is, for example, 6 bars, the second rated value example Such as it is 8 bars.
In the present embodiment, pneumatic operated valve 722 has position of the switch feedback device (not shown), can be to now by the device Field staff provides working condition and warning message.
In the present embodiment, 72 second spare duct 725 of switching device.Second spare duct 725 is connected to master at one end Pipeline 1 is connected to the first spare duct 721 close to the upstream of spare caisson 71 in the other end or is connected directly to spare storage Device of air 71.Second spare duct 725 is equipped with hand-operated valve 726, for passing through work on the spot people when switching device 72 fails Spare caisson 71 is switched to main line 1 by the manual operation of member.
Auxiliary gas switching equipment 7 according to the present embodiment further includes check-valves 74.Check-valves 74 is arranged in switching device On the main line 1 of 72 upstreams, for when spare caisson 71 is switched to main line 1, preventing from the auxiliary gas fed out Reverse flow occurs in main line 1.
As shown in Figure 1, pressure reducing valve 8 is equipped on main line 1 at auxiliary gas switching equipment 7, for reducing main line 1 The pressure of interior compressed air is adapted to be fed to gas unit.
All pipelines of breathing air supply system 100 according to the ... of the embodiment of the present invention are made of 316L stainless steels, wherein main The nominal diameter of pipeline 1 is, for example, 50 millimeters.The connection type of pipeline can ensure securely and reliably, convenient for maintenance.Pipeline is optional With the quick assembling mode of dismountable no-welding, have segmentation pressurize detection and system purge condition after Pipe installing.Card pressure pipe The design pressure-bearing of road connection is 15 bars, and operating pressure is 10 bars.In gas supply point setting flow switch, for monitoring each gas unit Use gas situation.
Breathing air supply system 100 according to the ... of the embodiment of the present invention has manually and automatically two kinds of working methods.Manual work side Formula is mainly used for emergent compulsive work, stops in emergency with maintenance monitoring etc., and automatic work mode is mainly by automatically controlling It unites and the rest part realization for breathing air supply system 100 is automatically controlled.The main control object of automatic control system is the first He The cooling of second inlet duct 2a, 2b, the drying device of first and second pre-processing device 3a, 3b and temperature control equipment 6 Device 61 and heating device 62.The input of the automatic control system mainly signal of various detection sensors, output is mainly each The switch of a control object.
In the present embodiment, automatic control system uses Siemens's S7-300 series of PLC as control core, and using upper The four-layer structure of the electromechanical brain in position, man-machine interface, PLC, sensor and switch element, wherein man-machine interface have Ethernet and connect Exploitation of the mouth for supporting remote monitoring function.Main control PLC should be able to be with first and second inlet duct 2a, 2b and gas monitor Equipment 4 carries out information exchange, and each discrete switch, valve, sensor etc. are connected in PLC system.To improve the peace of system Quan Xing can stop or start first and second inlet duct 2a, 2b when gas monitor equipment 4 occurs or releases fault alarm Operation.Automatic control system, which has gone out, to be realized outside the overload alarms such as conventional temperature, relative humidity, pressure, gas concentration, may be used also To realize certain fault diagnosis functions in PLC.
It is sketched referring to Fig. 1-5 according to the present invention for breathing air Supply Method.
It is according to the present invention to include the following steps for breathing air Supply Method：A. it sucks and compresses from ambient atmosphere Air；B. dry air；C. the air after drying is temporarily stored in primary air accumulator；D. filter out in air it is undesirable at Point；E. the content of one or more ingredients in air is detected, and stops conveying air in content over range；F. make sky Gas is fluctuated by two level air accumulator 5 with compensator or trimmer pressure；G. the temperature of air is adjusted to desired value；H. air is exported to using gas Unit.Wherein, step a is associated to two level air accumulator 5, when the pressure in two level air accumulator 5 is less than first pressure value, is started Air is sucked, when the pressure in two level air accumulator 5 is higher than second pressure value, stops sucking air.
Although illustrating the present invention above by the description of embodiment, it should be understood that these embodiments are exemplary rather than It is restrictive.Those skilled in the art upon reading the present specification can various changes can be made to the embodiment of the present invention, The spirit without departing from the present invention is improved and substitutes, these variations, improvement and replacement are each fallen in protection scope of the present invention.This The protection domain of invention is only determined by the appended claims and its equivalent form.

Claims (10)

1. a kind of breathing air supply system (100) is connected to outside air is connected in input terminal (11) in output end (12) To the main line (1) with gas unit, including：
Inlet duct (2a, 2b) is arranged in the input terminal (11) of the main line (1), is used for from ambient inlet air And compress the air；
Pre-processing device (3a, 3b) is arranged in the downstream the inlet duct (2a, 2b), includes for drying the air Drying device (31a, 31b), the primary air accumulator (32a, 32b) for temporarily storing the air and for filtering the air In undesirable ingredient filter device (33a, 33b)；
Gas monitor equipment (4) is arranged on the main line (1) in the downstream the pre-processing device (3a, 3b), including with In detect in the air detection device (41) of the content of one or more ingredients and for analyze testing result and according to point Analysis result sends out the Analysis Control Unit (42) of control signal；
Two level air accumulator (5) is arranged on the main line (1) in the downstream the pre-processing device (3a, 3b), for buffering The pressure of the air；And
Temperature control equipment (6) is arranged on the main line (1) in the downstream the pre-processing device (3a, 3b), including with In the cooling device (61) of the cooling air and heating device (62) for heating the air.
2. breathing air supply system (100) according to claim 1, which is characterized in that further include auxiliary gas switching equipment (7), the auxiliary gas switching equipment (7) includes storing the spare caisson (71) of auxiliary gas and being arranged described Between spare caisson (71) and the main line (1) and can the spare caisson (71) be selectively switched to institute State the switching device (72) of main line (1).
3. breathing air supply system (100) according to claim 1, which is characterized in that the inlet duct (2a, 2b) and institute Two level air accumulator (5) is stated to be associated to, when the pressure in the two level air accumulator (5) is less than first pressure value, the air inlet dress One of (2a, 2b) startup is set, when the pressure in the two level air accumulator (5) is higher than second pressure value, the inlet duct (2a, 2b) is shut down.
4. breathing air supply system (100) according to claim 1, which is characterized in that the inlet duct (2a, 2b) includes First inlet duct (2a) and the second inlet duct (2b), the pre-processing device (3a, 3b) include the first pre-processing device (3a) and the second pre-processing device (3b)；The input terminal (11) has first input end (11a) and the second input terminal (11b), Their input terminals respectively as in parallel the first bye-pass (1a) and the second bye-pass (1b)；First bye-pass (1a) packet First inlet duct (2a) and the first pre-processing device (3a) of concatenation are included, the second bye-pass (1b) includes the described of concatenation Second inlet duct (2b) and the second pre-processing device (3b), first bye-pass (1a) and second bye-pass (1b) exist Gas monitor equipment (4) upstream is incorporated into the main line (1).
5. breathing air supply system (100) according to claim 1 or 2, which is characterized in that the two level air accumulator (5) sets It is useful for opening the safety valve (51) of pressure release when the interior pressure of the two level air accumulator (5) is more than safety value, be discharged for regular The drain valve (53) of condensed water in the two level air accumulator (5) is used for two level air accumulator (5) interior pressure described in native monitoring Pressure gauge (54) and the pressure sensor (52) for being used for two level air accumulator (5) interior pressure described in remotely monitor.
6. breathing air supply system (100) according to claim 1, which is characterized in that the primary air accumulator (32a, 32b) Equipped with for opening pressure release when described primary air accumulator (32a, 32b) interior pressure is more than safety value safety valve (321a, 321b), it the drain valve (323a, 323b) of the condensed water for being periodically discharged in the primary air accumulator (32a, 32b) and is used for Monitor the pressure gauge (322a, 322b) of described primary air accumulator (32a, 32b) interior pressure.
7. breathing air supply system (100) according to claim 1 or 2, which is characterized in that the pre-processing device (3a, 3b) further include dew-point temperature for detecting air dew-point detecting device (34a, 34b), the dew-point detecting device (34a, 34b) it is arranged in the downstream of the filter device (33a, 33b).
8. breathing air supply system (100) according to claim 1, which is characterized in that the temperature control equipment (6) is also wrapped The bypass duct (65) for providing bypass to the cooling device (61) and the heating device (62) is included, for not needing The air is set to bypass the cooling device (61) and the heating device (62) when adjusting temperature.
9. a kind of Supply Method for breathing air includes the following steps：
A. air is sucked from ambient atmosphere, and compresses the air；
B. the air is dried；
C. the air after drying is temporarily stored in primary air accumulator；
D. undesirable ingredient in the air is filtered out；
E. the content of one or more ingredients in the air is detected, and stops the conveying sky in content over range Gas；
F. the air is made to be fluctuated with compensator or trimmer pressure by two level air accumulator (5)；
G. the temperature of the air is adjusted to desired value；
H. the air is exported to gas unit.
10. the Supply Method according to claim 9 for breathing air, which is characterized in that the step a and described two Grade air accumulator (5) is associated to, and when the pressure in the two level air accumulator (5) is less than first pressure value, is started and is sucked the sky Gas stops sucking the air when the pressure in the two level air accumulator (5) is higher than second pressure value.
CN201610687319.5A 2016-08-18 2016-08-18 A kind of breathing air supply system Expired - Fee Related CN106338005B (en)

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CN108397688A (en) * 2017-02-06 2018-08-14 中国人民解放军军事医学科学院卫生装备研究所 Biocontainment laboratory life-support system
CN111246920B (en) * 2017-09-01 2021-08-10 皇家飞利浦有限公司 Mask-based breathing apparatus and control method
CN107504372A (en) * 2017-10-09 2017-12-22 陈梓楠 A kind of medical apparatus of oxygen supply
US11596759B2 (en) * 2018-12-12 2023-03-07 General Electric Company Methods and systems for a medical gas delivery module
CN110630902B (en) * 2019-08-06 2021-02-09 浙江强盛医用工程有限公司 Regional controlling means of medical gas
CN110812997B (en) * 2019-10-25 2022-03-15 仪征祥源动力供应有限公司 Air classification filtering and drying device for air compressor
CN112156582A (en) * 2020-09-29 2021-01-01 广州拜费尔空气净化材料有限公司 Protective device
CN113842717A (en) * 2021-11-09 2021-12-28 哈尔滨安泰利达科技开发有限公司 Sealed gas preparation device of pure water system

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FR2908048B1 (en) * 2006-11-08 2009-02-06 Sopro Sa GAS INSUFFLATION DEVICE FOR OPTIMUM AND SECURE USE OF PRESSURIZED GAS CONTAINERS
CN202078672U (en) * 2011-03-25 2011-12-21 巩宁峰 High quality breathing air supply system
JP5792608B2 (en) * 2011-12-20 2015-10-14 大陽日酸株式会社 Liquefied gas supply apparatus and method
CN104048160B (en) * 2014-06-17 2017-01-11 上海天汉环境资源有限公司 Treatment system for disused steel bottle
CN203963504U (en) * 2014-06-30 2014-11-26 广东九丰燃气科技股份有限公司 The stable system of heating value of natural gas
CN204085824U (en) * 2014-10-20 2015-01-07 苏州锦鹏机电设备制造有限公司 Big-flow high-pressure air supply system
CN105202361A (en) * 2015-09-16 2015-12-30 四川菲博斯科技有限责任公司 Intelligent SF 6 air inflation unit of electrical equipment
CN206055202U (en) * 2016-08-18 2017-03-29 北京易安华美科学技术有限公司 A kind of breathing air supply system

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