CN106744699B - A kind of omnibus control system and oxygen purification integral system and method - Google Patents
A kind of omnibus control system and oxygen purification integral system and method Download PDFInfo
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- CN106744699B CN106744699B CN201710160677.5A CN201710160677A CN106744699B CN 106744699 B CN106744699 B CN 106744699B CN 201710160677 A CN201710160677 A CN 201710160677A CN 106744699 B CN106744699 B CN 106744699B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
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- 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
- B01D53/047—Pressure swing adsorption
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
Abstract
The invention discloses a kind of omnibus control systems and oxygen purification integral system, it mainly include compressed air line, pressure swing adsorption oxygen, surge tank, oxygen purification host and oxygen storage tank, the compressed air line is connected to the entrance of pressure swing adsorption oxygen, the outlet of pressure swing adsorption oxygen is connected to by pipeline with surge tank, surge tank is connected to the entrance of oxygen purification host by the road, the outlet of oxygen purification host is connected to oxygen storage tank by the road, oxygen storage tank is connected to surge tank by the road, and oxygen storage tank is connected to return tank by the road；The valve of control on-off is respectively arranged on each pipeline.The present invention also provides a kind of methods produced using integral system as described above and purify oxygen.The invention has the benefit that tail gas of the present invention using return tank recycling oxygen purification host discharge, and pressure swing adsorption oxygen is inputted as regeneration gas, the oxygen recovery rate of whole system greatly improved, simultaneously, regeneration effect is also improved, is conducive to promote oxygen purity.
Description
Technical field
The present invention relates to oxygen generating plant and method fields, and in particular to a kind of omnibus control system is integrated with oxygen purification
System and method.
Background technique
Omnibus control system technology is the technology that a kind of air separation produces oxygen, relies primarily on oxygen molecular sieve (transformation processed
The critical component of adsorption oxygen-preparation equipment) difference of the adsorption capacity of each component gas in air is reached at various pressures by
The purpose of each component gas separation.THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE is widely used in chemical industry, electronics, medical treatment, metallurgy, environmental improvement
Etc. industries.It is very low to the adsorption capacity of inert gas in air since the characteristic and absorption principle of oxygen molecular sieve processed limit, become
Containing a large amount of inert gas, such as argon gas etc. in the oxygen that pressure adsorption oxygen-preparation equipment is produced, so the limit of oxygen concentration is only
96.0% can be reached hereinafter, if to obtain the higher oxygen of concentration, it is necessary to use oxygen purification technology.Oxygen purification technology is
It is affine by a kind of oxygen affinity agent and oxygen, oxygen is stayed in purification column (loading oxygen affinity agent in tower), and chemically
The very inactive inert gas of matter then flows out purification column, is then vacuumized by purification column and comes out oxygen extraction, obtains high-purity
The oxygen of degree.
Pressure-variable adsorption oxygen producing and oxygen purification at this stage are by THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE and oxygen purification equipment point
At two relatively independent equipment, it is subsequently connected together.When producing general oxygen (purity 93%) due to THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE,
Need about 200% regeneration gas of oxygen output；And regeneration gas remains in adsorption tower in addition to a part, remaining will be vented；
The exhaust gas of oxygen purification host and tail gas will also empty simultaneously, not utilize, this results in the regeneration gas of complete equipment to consume
The problem of excessive, serious oxygen recovery rate (oxygen recovery rate only has 30% or so) for reducing complete equipment, equipment energy consumption is caused to occupy
It is high not under, while the oxygen purity for also influencing equipment is promoted, and is generally extremely difficult to 99.5% or more.Simultaneously as booting is not taken
Certain measure causes the available machine time of complete equipment very long without recovery pipe and reversely charging pressure pipe road, generally requires 3 hours
Left and right, seriously affects the use of equipment.
Summary of the invention
It is an object of the present invention to which in view of the deficiencies of the prior art, providing one kind can be improved oxygen purity and energy conservation and environmental protection
Omnibus control system and oxygen purification integral system and method.
The technical solution adopted by the present invention are as follows: a kind of omnibus control system and oxygen purification integral system mainly include
Compressed air line, pressure swing adsorption oxygen, surge tank, oxygen purification host and oxygen storage tank, the compressed air line with
The entrance of pressure swing adsorption oxygen is connected to, and the outlet of pressure swing adsorption oxygen is connected to by pipeline with surge tank, and surge tank is through pipe
Road is connected to the entrance of oxygen purification host, and the outlet of oxygen purification host is connected to oxygen storage tank by the road, oxygen storage tank warp
Pipeline is connected to surge tank, and oxygen storage tank is connected to return tank by the road；The valve of control on-off is respectively arranged on each pipeline
Door.
According to the above scheme, pressure swing adsorption oxygen includes the first adsorption tower, the second adsorption tower, emptying pipeline and regenerating tube
Road, compressed air line are connected to through the first air inlet pipeline with the entrance of the first adsorption tower, and the outlet first of the first adsorption tower goes out
Air pipe is connected to oxygen pipeline, and oxygen pipeline is connected to the entrance of surge tank；Compressed air line through the second air inlet pipeline with
The entrance of second adsorption tower is connected to, and the second outlet pipe of outlet of the second adsorption tower is connected to oxygen pipeline；First air inlet pipe
Road and the second air inlet pipeline respectively with emptying pipeline connection；First outlet pipe is connected to one end of regeneration pipeline, and second goes out
Air pipe is connected to the other end of regeneration pipeline.
According to the above scheme, oxygen purification host includes the first purification column, the second purification column and exhaust gas evacuation pipeline, surge tank
Outlet be successively connected to through general oxygen air inlet pipeline and third air inlet pipeline with the entrance of the first purification column, the outlet of the first purification column
Through first exhaust pipeline and exhaust gas evacuation pipeline connection；The outlet of the surge tank is successively through general oxygen air inlet pipeline and the 4th air inlet
Pipeline is connected to the entrance of the second purification column, and the outlet of the second purification column is through second exhaust pipeline and exhaust gas evacuation pipeline connection.
According to the above scheme, which is characterized in that the second high pure oxygen scavenging pipeline and height are additionally provided in the oxygen purification host
Pure oxygen outlet pipe, third air inlet pipeline are connected to the second high pure oxygen scavenging pipeline, and the 4th air inlet pipeline is blown with the second high pure oxygen
Pipeline connection is swept, the second high pure oxygen scavenging pipeline is connected to oxygen storage tank；Third air inlet pipeline is connected to high pure oxygen outlet pipe,
4th air inlet pipeline is connected to high pure oxygen outlet pipe, is configured in order filter and oxygen vacuum-on high pure oxygen outlet pipe
It is pressurized dual-purpose compressor, high pure oxygen outlet pipe is connected to the entrance of oxygen storage tank.
According to the above scheme, which is characterized in that the outlet of oxygen storage tank is connected to through reversely charging pressure pipe road with the entrance of surge tank, oxygen
The high pure oxygen pipeline of the outlet of gas storage tank, high pure oxygen pipeline are connected to recovery pipe and peripheral hardware oxygen delivery pipeline respectively.
According to the above scheme, the system also includes high pure oxygen evacuated tube road, the first high pure oxygen scavenging pipeline and return tank, institutes
It states first exhaust pipeline to be connected to high pure oxygen evacuated tube road, second exhaust pipeline is connected to high pure oxygen evacuated tube road, first exhaust
Pipeline is connected to the first high pure oxygen scavenging pipeline, and second exhaust pipeline is connected to the first high pure oxygen scavenging pipeline, high pure oxygen emptying
Pipeline, the first high pure oxygen scavenging pipeline and recovery pipe are connected to the entrance of return tank respectively.
According to the above scheme, the 4th balance pipe road and the 5th balance pipe road, second row are additionally provided in the oxygen purification host
Air pipe is connected to through the 4th balance pipe road with third air inlet pipeline, and the 4th balance pipe road is equipped with the first equalizing valve；First exhaust
Pipeline is connected to through tetra- air inlet pipeline of the 5th balance pipe Lu Yu, and the 5th balance pipe road is equipped with the second equalizing valve.
The present invention additionally uses a kind of method produced using integral system as described above and purify oxygen, this method packet
Include following steps:
Step 1: the high pure oxygen in oxygen storage tank enters surge tank through reversely charging pressure pipe road, pressure swing adsorption oxygen starts to transport
Row；The general oxygen of pressure swing adsorption oxygen output enters surge tank；
Step 2: the general oxygen in surge tank enters oxygen purification host, oxygen purification host brings into operation；Oxygen purification master
The high pure oxygen of machine output enters oxygen storage tank；
Step 3: the recovered pipeline of the underproof oxygen of purity enters return tank in oxygen storage tank, it to be used for pressure-variable adsorption
The purging regeneration of molecular sieve in oxygenerator；
Step 4: the oxygen of purity qualification is produced air valve output in oxygen storage tank.
According to the above scheme, in step 2, the oxygen preparation of pressure swing adsorption oxygen includes:
(1), the compressed air after dry decontamination enters the first adsorption tower, and the general oxygen of the first adsorption tower output is through oxygen pipeline
Into surge tank；
(2), the oxygen in return tank carries out purging regeneration, while the oxygen of the first adsorption tower output into the second adsorption tower
Part enters the second adsorption tower through regeneration pipeline, and the regeneration off gases in the second adsorption tower enter emptying pipeline evacuation；
(3), the oxygen in the first adsorption tower enters the second adsorption tower through balance pipe road, realizes that the first adsorption tower is inhaled to second
The pressure equalizing of attached tower；
(4), the residue gas in the first adsorption tower enters emptying pipeline；
(5), switch the second adsorption tower, compressed air enters the second adsorption tower, and the general oxygen of the second adsorption tower output is through oxygen
Pipeline enters surge tank；
(6), the oxygen in return tank carries out purging regeneration, while the oxygen of the second adsorption tower output into the first adsorption tower
Part enters the first adsorption tower through regeneration pipeline, and the regeneration off gases in the first adsorption tower enter emptying pipeline evacuation；
(7), the oxygen in the second adsorption tower enters the first adsorption tower through balance pipe road, realizes that the second adsorption tower is inhaled to first
The pressure equalizing of attached tower；
(8), the residue gas in the second adsorption tower enters emptying pipeline；
(9), step (1) ~ (8) are repeated.
According to the above scheme, in step 3, oxygen purification host purification oxygen the step of include:
(1), the general oxygen in surge tank enters the first purification column, and the gas flowed out first from the first purification column is through exhaust gas evacuation
Pipeline evacuation；First purification column enters working condition；
(2), the oxygen for flowing through the first purification column flows into return tank through high pure oxygen evacuated tube road, is used for pressure swing adsorption oxygen
The purging of interior molecular sieve；
(3), the high pure oxygen in oxygen storage tank enters the first purification column through the second high pure oxygen scavenging pipeline, to the first purification column
It is purged, purge gass enter return tank through the first high pure oxygen scavenging pipeline；
(4), a part of gas in the first purification column enters the second purification column through the 5th balance pipe road, completes the first purifying
Pressure equalizing of the tower to the second purification column；
(5), remaining high purity oxygen gas enters high pure oxygen outlet pipe in the first purification column, is filtered dedusting, then
Oxygen storage tank is output to through oxygen vacuum-dual-purpose compressor of pressurization；
(6), the general oxygen in surge tank enters the second purification column, and the gas flowed out first from the second purification column is through exhaust gas evacuation
Pipeline evacuation；Second purification column enters working condition；
(7), the oxygen for flowing through the second purification column flows into return tank through high pure oxygen evacuated tube road, is used for pressure swing adsorption oxygen
The purging of interior molecular sieve regenerates；
(8), the high pure oxygen in oxygen storage tank enters the second purification column through the second high pure oxygen scavenging pipeline, to the second purification column
It is purged, purge gass enter return tank through the first high pure oxygen scavenging pipeline；
(9), the portion gas in the second purification column enters the first purification column through the 4th balance pipe road, completes the second purification column
To the pressure equalizing of the first purification column；
(10), remaining high purity oxygen gas enters high pure oxygen outlet pipe in the second purification column, is filtered dedusting, then
Oxygen storage tank is output to through oxygen vacuum-dual-purpose compressor of pressurization；
(11), step (1) ~ (10) are repeated.
The invention has the benefit that
1, the tail gas of present invention recycling oxygen purification host discharge, input pressure swing adsorption oxygen are used as regeneration gas, substantially
Improve the oxygen recovery rate of whole system；
2, the tail gas oxygen purity of oxygen purification host discharge is relatively high, and generally 95% or so, and amount of oxygen is also bigger,
Be conducive to the regeneration of THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE (the regeneration gas purity of THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE generally 93% or so, with 95%
Oxygen recovery effect it is more preferable), the favorable regeneration effect of THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE, the general oxygen purity of output is high, oxygen purification master
The purification effect of machine is more preferable, improves the oxygen purity of final output；
3, displacement is accurately purged using multistep oxygen purification, purification column, displacement control technology is swept in high pure oxygen big flow blowback
It can be obviously improved oxygen purity, and system run all right, it is highly-safe；
4, using single-point, quickly equal pressure energy significantly reduces oxygen vacuum-pressurization dual-purpose compressor power, saves energy consumption；
5, the available machine time can substantially be shortened using secondary counter pressurising, the reflux regeneration of high pure oxygen, improved work efficiency.
Detailed description of the invention
Fig. 1 is the flow diagram of a specific embodiment of the invention.
Wherein: 1, the first air inlet pipeline；2, compressed air line；3, the second air inlet pipeline；4, pipeline is emptied；5, first
Pressure pipe road；6, the second balance pipe road；7, the second adsorption tower；8, the first adsorption tower；9, third balance pipe road；10, the second escape pipe
Road；11, oxygen pipeline；12, the first outlet pipe；13, regeneration pipeline；14, return line；15, return tank；16, high pure oxygen row
Blank pipe road；17, the first high pure oxygen scavenging pipeline；18, recovery pipe；19, first exhaust pipeline；20, the first exhaust gas evacuation valve；
21, the first blow down valve；22, exhaust gas evacuation pipeline；23, first emptying valve；24, the second exhaust gas evacuation valve；25, second exhaust pipe
Road；26, the second blow down valve；27, the first purification column；28, second emptying valve；29, orifice plate is recycled；30, the 4th balance pipe road；31,
5th balance pipe road；32, recovery valve；33, air valve is produced；34, the second purification column；35, high pure oxygen pipeline；36, oxygen storage tank；37,
Second equalizing valve；38, the first equalizing valve；39, reversely charging pressure valve；40, reversely charging presses orifice plate；41, the second intake valve；42, the 4th purging
Valve；43, the first intake valve；44, general oxygen air inlet pipeline；45, orifice plate is purged；46, the 4th air inlet pipeline；47, oxygen vacuum-pressurization
Dual-purpose compressor；48, the second air outlet valve；49, filter；50, high pure oxygen outlet pipe；51, the second high pure oxygen scavenging pipeline；
52, the first air outlet valve；53, third blow down valve；54, third air inlet pipeline；55, reversely charging pressure pipe road；56, air inlet orifice plate；57, unidirectional
Valve；58, surge tank；59, scavenging pipeline.
Specific embodiment
For a better understanding of the invention, the invention will be further described combined with specific embodiments below.
A kind of omnibus control system and oxygen purification integral system as shown in Figure 1 mainly includes compressed air line
2, pressure swing adsorption oxygen, surge tank 58, oxygen purification host and oxygen storage tank 36, the compressed air line 2 are inhaled with transformation
The entrance of attached oxygenerator is connected to, and the outlet of pressure swing adsorption oxygen is connected to through oxygen pipeline 11 with surge tank 58, and surge tank 58 passes through
General oxygen air inlet pipeline 44 is connected to the entrance of oxygen purification host, and the outlet of oxygen purification host connects with oxygen storage tank 36 by the road
Logical, oxygen storage tank 36 is connected to surge tank 58 by the road, and oxygen storage tank 36 is connected to return tank 15 by the road；Divide equally on each pipeline
It is not provided with the valve of control on-off.
In the present invention, pressure swing adsorption oxygen includes the first adsorption tower 8, the second adsorption tower 7, emptying pipeline 4 and regenerating tube
Road 13, compressed air line 2 are connected to through the first air inlet pipeline 1 with the entrance of the first adsorption tower 8, the outlet warp of the first adsorption tower 8
First outlet pipe 12 is connected to oxygen pipeline 11, and oxygen pipeline 11 is connected to the entrance of surge tank 58；Compressed air line 2 passes through
Second air inlet pipeline 3 is connected to the entrance of the second adsorption tower 7, the second outlet pipe of outlet 10 and oxygen of the second adsorption tower 7
Pipeline 11 is connected to；First air inlet pipeline 1 and the second air inlet pipeline 3 are connected to emptying pipeline 4 respectively；First outlet pipe 12 with
One end of regeneration pipeline 13 is connected to, and the second outlet pipe 10 is connected to the other end of regeneration pipeline 13.The omnibus control system
The first balance pipe road 5, the second balance pipe road 6 and third balance pipe road 9 are additionally provided in machine, the first outlet pipe 12 is pressed through first
Pipeline 5 is connected to the second air inlet pipeline 3, and the second outlet pipe 10 is connected to through the second balance pipe road 6 with the first air inlet pipeline 1, the
One outlet pipe 12 is connected to through third balance pipe road 9 with the second outlet pipe 10.It is respectively arranged on each pipeline controllable logical
The outlet of disconnected valve, the first adsorption tower 8 and the second adsorption tower 7 is installed on the orifice plate or throttle valve for adjusting flow respectively；Oxygen
The orifice plate or throttle valve for adjusting flow are respectively arranged on air pipe 11 and regeneration pipeline 13.
In the present invention, oxygen purification host includes the first purification column 27, the second purification column 34 and exhaust gas evacuation pipeline 22, is delayed
The outlet for rushing tank 58 is successively connected to (general oxygen with the entrance of the first purification column 27 through general oxygen air inlet pipeline 44 and third air inlet pipeline 54
Air inlet pipeline 44 is equipped with air inlet orifice plate 56, and general oxygen air inlet pipeline 44 is connected by the first intake valve 43 with third air inlet pipeline 54
It is logical), the outlet of the first purification column 27 is connected to that (first exhaust pipeline 19 passes through through first exhaust pipeline 19 with exhaust gas evacuation pipeline 22
First exhaust gas blow valve 20 is connected to exhaust gas evacuation pipeline 22)；The outlet of the surge tank 58 is successively through general oxygen air inlet pipeline 44
Be connected to the 4th air inlet pipeline 46 with the entrance of the second purification column 34 (general oxygen air inlet pipeline 44 pass through the second intake valve 41 and the 4th
Air inlet pipeline 46 is connected to), the outlet of the second purification column 34 is connected to (second row with exhaust gas evacuation pipeline 22 through second exhaust pipeline 25
Air pipe 25 is connected to through the second exhaust gas blow valve 24 with exhaust gas evacuation pipeline 22).
Be additionally provided with the second high pure oxygen scavenging pipeline 51 and high pure oxygen outlet pipe 50 in the oxygen purification host, third into
Air pipe 54 is connected to by third blow down valve 53 with the second high pure oxygen scavenging pipeline 51, and the 4th air inlet pipeline 46 passes through the 4th purging
Valve 42 is connected to (the second high pure oxygen scavenging pipeline 51 is equipped with purging orifice plate 45) with the second high pure oxygen scavenging pipeline 51, and second is high-purity
Oxygen scavenging pipeline 51 is connected to the entrance of oxygen storage tank 36.Third air inlet pipeline 54 passes through the first air outlet valve 52 and high pure oxygen outlet
Pipeline 50 is connected to, and is configured in order filter 49 and the dual-purpose compressor 47 of oxygen vacuum-pressurization on high pure oxygen outlet pipe 50, high
Pure oxygen outlet pipe 50 is connected to the entrance of oxygen storage tank 36.Being respectively arranged on each pipeline can on-off valve.
The 4th balance pipe road 30 and the 5th balance pipe road 31, second exhaust pipeline 25 are additionally provided in the oxygen purification host
It is connected to through the 4th balance pipe road 30 with third air inlet pipeline 54, the 4th balance pipe road 30 is equipped with the first equalizing valve 38；First row
Air pipe 19 is connected to through the 5th balance pipe road 31 with the 4th air inlet pipeline 46, and the 5th balance pipe road 31 is equipped with the second equalizing valve
37。
The outlet of oxygen storage tank 36 is connected to through reversely charging pressure pipe road 55 with the entrance of surge tank 58, on reversely charging pressure pipe road 55 successively
Configured with reversely charging pressure valve 39, reversely charging pressure orifice plate 40 and check valve 57；The high pure oxygen pipeline 35 of the outlet of oxygen storage tank 36, it is high-purity
Oxygen pipeline 35 be provided with adjust pressure, adjust flow valve, and point can on-off two-way output；High pure oxygen pipeline 35 respectively with
Recovery pipe 18 is connected to peripheral hardware oxygen delivery pipeline, and recycling orifice plate 29 and recovery valve 32 are configured in order in recovery pipe 18,
Peripheral hardware oxygen conveying pipe road, which is configured with, produces air valve 33.
Preferably, the system also includes high pure oxygen evacuated tube road 16, the first high pure oxygen scavenging pipeline 17 and return tank 15,
The first exhaust pipeline 19 is connected to through first emptying valve 23 with high pure oxygen evacuated tube road 16, and second exhaust pipeline 25 is through second row
Empty valve 28 is connected to high pure oxygen evacuated tube road 16, and first exhaust pipeline 19 is through the first blow down valve 21 and the first high pure oxygen scavenging pipeline
17 connections, second exhaust pipeline 25 are connected to through the second blow down valve 26 with the first high pure oxygen pipeline 17,16 He of high pure oxygen evacuated tube road
First high pure oxygen scavenging pipeline 17 is connected to the entrance of return tank 15 respectively.Preferably, the system also includes return lines
14, first outlet pipe 12 and the second outlet pipe 10 are connected to return line 14 respectively, return line 14 and reflux
The outlet of tank 15.On first high pure oxygen scavenging pipeline 17 and high pure oxygen evacuated tube road 16 setting adjust flow orifice plate or
Throttle valve；The valve for being provided with steady pressure on return line 14, adjusting flow.
A kind of pressure-variable adsorption produces oxygen and oxygen purification integral method, specifically includes the following steps:
Step 1: the high pure oxygen in oxygen storage tank 36 enters surge tank 58, pressure swing adsorption oxygen through reversely charging pressure pipe road 55
It brings into operation；The general oxygen of pressure swing adsorption oxygen output enters surge tank 58 through oxygen pipeline 11；
Step 2: the general oxygen in surge tank 58 enters oxygen purification host, oxygen purification host through general oxygen air inlet pipeline 44
It brings into operation；The high pure oxygen of oxygen purification host output enters oxygen storage tank 36 through high pure oxygen outlet pipe 50；
Step 3: the recovered pipeline 18 of the underproof oxygen of purity enters return tank 15 in oxygen storage tank 36, for becoming
Press the purging regeneration of molecular sieve in adsorption oxygen-preparation machine；
Step 4: the oxygen of purity qualification is exported through producing air valve 33 in oxygen storage tank 36.
In step 2, the oxygen preparation of pressure swing adsorption oxygen are as follows:
(1), the compressed air after dry decontamination enters the first adsorption tower 8 through the first air inlet pipeline 1, and the first adsorption tower 8 produces
General oxygen out enters surge tank 58 through the first outlet pipe 12 and oxygen pipeline 11；
(2), the oxygen in return tank 15 is blown through return line 14 and the second outlet pipe 10 into the second adsorption tower 7
Regeneration is swept, while the oxygen fraction of 8 output of the first adsorption tower enters the second absorption through the first outlet pipe 12 and regeneration pipeline 13
Tower 7, the regeneration off gases in the second adsorption tower 7 enter emptying pipeline 4 through the second air inlet pipeline 1 and empty；
(3), the oxygen in the first adsorption tower 8 is through the first outlet pipe 12, third balance pipe road 9 and the second outlet pipe 10
Into the second adsorption tower 7, realize the first adsorption tower 8 to the top pressure equalizing of the second adsorption tower 7；Oxygen in first adsorption tower 8
Gas enters the second adsorption tower 7 through the first balance pipe road 5, realizes the first adsorption tower 8 to the bottom pressure equalizing of the second adsorption tower 7；
(4), the residue gas in the first adsorption tower 8 enters emptying pipeline 4 through the first air inlet pipeline 3 and is vented；
(5), switch the second adsorption tower 7, compressed air enters the second adsorption tower 7, the second adsorption tower through the second air inlet pipeline 3
The general oxygen of 7 outputs enters surge tank 58 through the second outlet pipe 10 and oxygen pipeline 11；
(6), the oxygen in return tank 15 is blown through return line 14 and the first outlet pipe 12 into the first adsorption tower 8
Regeneration is swept, while the oxygen fraction of 7 output of the second adsorption tower enters the first absorption through the second outlet pipe 10 and regeneration pipeline 13
Tower 8, the regeneration off gases in the first adsorption tower 8 enter emptying pipeline 4 through the first air inlet pipeline 3 and empty；
(7), the oxygen in the second adsorption tower 7 is through the second outlet pipe 10, third balance pipe road 9 and the first outlet pipe 12
Into the first adsorption tower 8, realize the second adsorption tower 7 to the top pressure equalizing of the first adsorption tower 8；Oxygen in second adsorption tower 7
Gas enters the first adsorption tower 8 through the second balance pipe road 6, realizes the second adsorption tower 7 to the bottom pressure equalizing of the first adsorption tower 8；
(8), the residue gas in the second adsorption tower 7 enters emptying pipeline 4 through the second air inlet pipeline 3 and is vented；
(9), step (1) ~ (8) are repeated.
In step 3, oxygen purification host purification oxygen the step of include:
(1), the general oxygen in surge tank 58 enters the first purification column 27 through third air inlet pipeline 54, first from the first purification column
The gas of 27 outflows is emptied through first exhaust pipeline 19 and exhaust gas evacuation pipeline 22；First purification column 27 enters working condition；
(2), the oxygen for flowing through the first purification column 27 flows into reflux through first exhaust pipeline 19 and high pure oxygen evacuated tube road 16
Tank 15, the purging for molecular sieve in pressure swing adsorption oxygen；
(3), the high pure oxygen in oxygen storage tank 36 enters the first purification column 27 through the second high pure oxygen scavenging pipeline 51, to first
Purification column 27 is purged, and purge gass enter return tank 15 through the first high pure oxygen scavenging pipeline 17；
(4), the portion gas in the first purification column 27 enters the second purification column 34 through the 5th balance pipe road 31, completes first
Pressure equalizing of the purification column 27 to the second purification column 34；
(5), the high purity oxygen gas in the first purification column 27 enters high pure oxygen outlet pipe 50 through third air inlet pipeline 54, passes through
49 dust removal by filtration of filter, then oxygen storage tank 36 is output to through the dual-purpose compressor 47 of oxygen vacuum-pressurization；
(6), the general oxygen in surge tank 58 enters the second purification column 34 through the 4th air inlet pipeline 46, first from the second purification column
The gas of 34 outflows is emptied through second exhaust pipeline 25 and exhaust gas evacuation pipeline 22；Second purification column 34 enters working condition；
(7), the oxygen for flowing through the second purification column 34 flows into reflux through second exhaust pipeline 25 and high pure oxygen evacuated tube road 16
Tank 15, the purging regeneration for molecular sieve in pressure swing adsorption oxygen；
(8), the high pure oxygen in oxygen storage tank 36 enters the second purification column 34 through the second high pure oxygen scavenging pipeline 51, to second
Purification column 34 is purged, and purge gass enter return tank 15 through the first high pure oxygen scavenging pipeline 17；
(9), the portion gas in the second purification column 34 enters the first purification column 27 through the 4th balance pipe road 30, completes second
Pressure equalizing of the purification column 34 to the first purification column 27；
(10), the high purity oxygen gas in the second purification column 34 enters high pure oxygen outlet pipe 50, warp through the 4th air inlet pipeline 46
49 dust removal by filtration of filter, then oxygen storage tank 36 is output to through the dual-purpose compressor 47 of oxygen vacuum-pressurization；
(11), step (1) ~ (10) are repeated.
Finally it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Referring to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (6)
1. a kind of omnibus control system and oxygen purification integral system, which is characterized in that mainly include compressed air line, become
Pressure adsorption oxygen-preparation machine, surge tank, oxygen purification host and oxygen storage tank, the compressed air line and pressure swing adsorption oxygen
Entrance connection, the outlet of pressure swing adsorption oxygen are connected to by pipeline with surge tank, surge tank by the road with oxygen purification host
Entrance connection, the outlet of oxygen purification host is connected to oxygen storage tank by the road, and oxygen storage tank is connected to surge tank by the road；
The valve of control on-off is respectively arranged on each pipeline；Pressure swing adsorption oxygen includes the first adsorption tower, the second adsorption tower, row
Blank pipe road and regeneration pipeline, compressed air line are connected to through the first air inlet pipeline with the entrance of the first adsorption tower, the first adsorption tower
The first outlet pipe of outlet be connected to oxygen pipeline, oxygen pipeline is connected to the entrance of surge tank；Compressed air line warp
Second air inlet pipeline is connected to the entrance of the second adsorption tower, and the second outlet pipe of outlet and oxygen pipeline of the second adsorption tower connect
It is logical；First air inlet pipeline and the second air inlet pipeline respectively with emptying pipeline connection；The one of first outlet pipe and regeneration pipeline
End connection, the second outlet pipe are connected to the other end of regeneration pipeline；Oxygen purification host includes the first purification column, the second purifying
Tower and exhaust gas evacuation pipeline, the outlet of surge tank successively entering through general oxygen air inlet pipeline and third air inlet pipeline and the first purification column
Mouth connection, the outlet of the first purification column is through first exhaust pipeline and exhaust gas evacuation pipeline connection；The outlet of the surge tank is successively
It is connected to through general oxygen air inlet pipeline and the 4th air inlet pipeline with the entrance of the second purification column, the outlet of the second purification column is through second exhaust
Pipeline and exhaust gas evacuation pipeline connection；The second high pure oxygen scavenging pipeline and high pure oxygen outlet are additionally provided in the oxygen purification host
Pipeline, third air inlet pipeline are connected to the second high pure oxygen scavenging pipeline, and the 4th air inlet pipeline and the second high pure oxygen scavenging pipeline connect
Logical, the second high pure oxygen scavenging pipeline is connected to oxygen storage tank；Third air inlet pipeline is connected to high pure oxygen outlet pipe, the 4th air inlet
Pipeline is connected to high pure oxygen outlet pipe, and filter is configured in order on high pure oxygen outlet pipe and oxygen vacuum-pressurization is dual-purpose
Compressor, high pure oxygen outlet pipe are connected to the entrance of oxygen storage tank；The system also includes high pure oxygen evacuated tube roads, first high
Pure oxygen scavenging pipeline and return tank, the first exhaust pipeline are connected to high pure oxygen evacuated tube road, second exhaust pipeline with it is high-purity
Oxygen empties pipeline connection, and first exhaust pipeline is connected to the first high pure oxygen scavenging pipeline, second exhaust pipeline and the first high pure oxygen
Scavenging pipeline connection, high pure oxygen evacuated tube road, the first high pure oxygen scavenging pipeline and recovery pipe respectively with the entrance of return tank
Connection.
2. omnibus control system as described in claim 1 and oxygen purification integral system, which is characterized in that oxygen storage tank
Outlet be connected to through reversely charging pressure pipe road with surge tank, the high pure oxygen pipeline of the outlet of oxygen storage tank, high pure oxygen pipeline respectively with time
Closed tube road is connected to peripheral hardware oxygen delivery pipeline.
3. omnibus control system as described in claim 1 and oxygen purification integral system, which is characterized in that the oxygen mentions
The 4th balance pipe road and the 5th balance pipe road are additionally provided in pure host, second exhaust pipeline is through the 4th balance pipe road and third air inlet
Pipeline connection, the 4th balance pipe road are equipped with the first equalizing valve；First exhaust pipeline is through tetra- air inlet pipe of the 5th balance pipe Lu Yu
Road connection, the 5th balance pipe road are equipped with the second equalizing valve.
4. a kind of method produced using integral system described in claim 1 and purify oxygen, which is characterized in that this method packet
Include following steps:
Step 1: the high pure oxygen in oxygen storage tank enters surge tank through reversely charging pressure pipe road, pressure swing adsorption oxygen brings into operation；Become
The general oxygen of pressure adsorption oxygen-preparation machine output enters surge tank；
Step 2: the general oxygen in surge tank enters oxygen purification host, oxygen purification host brings into operation；Oxygen purification host produces
High pure oxygen out enters oxygen storage tank；
Step 3: the recovered pipeline of the underproof oxygen of purity enters return tank in oxygen storage tank, it to be used for omnibus control system
The purging regeneration of molecular sieve in machine；
Step 4: the oxygen of purity qualification is produced air valve output in oxygen storage tank.
5. the method produced as claimed in claim 4 and purify oxygen, which is characterized in that in step 2, pressure-variable adsorption system
The oxygen preparation of oxygen machine includes:
(1), the compressed air after dry decontamination enters the first adsorption tower, and the general oxygen of the first adsorption tower output enters through oxygen pipeline
Surge tank；
(2), the oxygen in return tank carries out purging regeneration, while the oxygen fraction of the first adsorption tower output into the second adsorption tower
Enter the second adsorption tower through regeneration pipeline, the regeneration off gases in the second adsorption tower enter emptying pipeline evacuation；
(3), the oxygen in the first adsorption tower enters the second adsorption tower through balance pipe road, realizes the first adsorption tower to the second adsorption tower
Pressure equalizing；
(4), the residue gas in the first adsorption tower enters emptying pipeline；
(5), switch the second adsorption tower, compressed air enters the second adsorption tower, and the general oxygen of the second adsorption tower output is through oxygen pipeline
Into surge tank；
(6), the oxygen in return tank carries out purging regeneration, while the oxygen fraction of the second adsorption tower output into the first adsorption tower
Enter the first adsorption tower through regeneration pipeline, the regeneration off gases in the first adsorption tower enter emptying pipeline evacuation；
(7), the oxygen in the second adsorption tower enters the first adsorption tower through balance pipe road, realizes the second adsorption tower to the first adsorption tower
Pressure equalizing；
(8), the residue gas in the second adsorption tower enters emptying pipeline；
(9), step (1) ~ (8) are repeated.
6. the method produced as claimed in claim 5 and purify oxygen, which is characterized in that in step 3, oxygen purification master
Machine purify oxygen the step of include:
(1), the general oxygen in surge tank enters the first purification column, and the gas flowed out first from the first purification column is through exhaust gas evacuation pipeline
Emptying；First purification column enters working condition；
(2), the oxygen for flowing through the first purification column flows into return tank through high pure oxygen evacuated tube road, in pressure swing adsorption oxygen points
The purging of son sieve；
(3), the high pure oxygen in oxygen storage tank enters the first purification column through the second high pure oxygen scavenging pipeline, carries out to the first purification column
Purging, purge gass enter return tank through the first high pure oxygen scavenging pipeline；
(4), a part of gas in the first purification column enters the second purification column through the 5th balance pipe road, completes the first purification column pair
The pressure equalizing of second purification column；
(5), remaining high purity oxygen gas enters high pure oxygen outlet pipe in the first purification column, is filtered dedusting, then through oxygen
Gas vacuum-dual-purpose compressor of pressurization is output to oxygen storage tank；
(6), the general oxygen in surge tank enters the second purification column, and the gas flowed out first from the second purification column is through exhaust gas evacuation pipeline
Emptying；Second purification column enters working condition；
(7), the oxygen for flowing through the second purification column flows into return tank through high pure oxygen evacuated tube road, in pressure swing adsorption oxygen points
The purging regeneration of son sieve；
(8), the high pure oxygen in oxygen storage tank enters the second purification column through the second high pure oxygen scavenging pipeline, carries out to the second purification column
Purging, purge gass enter return tank through the first high pure oxygen scavenging pipeline；
(9), the portion gas in the second purification column enters the first purification column through the 4th balance pipe road, completes the second purification column to the
The pressure equalizing of one purification column；
(10), remaining high purity oxygen gas enters high pure oxygen outlet pipe in the second purification column, is filtered dedusting, then through oxygen
Gas vacuum-dual-purpose compressor of pressurization is output to oxygen storage tank；
(11), step (1) ~ (10) are repeated.
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| CN107311123A (en) * | 2017-08-14 | 2017-11-03 | 浙江华峰氨纶股份有限公司 | A kind of rich nitrogen of low latitude consumption reclaims nitrogen-making device and preparation method |
| CN109133011A (en) * | 2018-09-12 | 2019-01-04 | 苏州成于思气体科技有限公司 | It is a kind of using PSA oxygen technology waste gas as the lossless regeneration technology of purge gas |
| CN111420420A (en) * | 2020-03-06 | 2020-07-17 | 南京钢铁股份有限公司 | Control method for preventing production fluctuation of oxygen generator |
| CN111204714A (en) * | 2020-03-26 | 2020-05-29 | 杭州辰睿空分设备制造有限公司 | Oxygen purification equipment and technological process thereof |
| CN115028143B (en) * | 2021-03-07 | 2024-02-06 | 上海技典工业产品设计有限公司 | Pressure swing adsorption process and method capable of purifying oxygen-enriched air with low oxygen concentration |
| CN114180529A (en) * | 2021-11-30 | 2022-03-15 | 湖南泰瑞医疗科技有限公司 | Medical oxygen purification device and method |
| CN114558416A (en) * | 2022-01-24 | 2022-05-31 | 湖南泰瑞医疗科技有限公司 | Integrated energy-saving oxygen generation system |
| CN115215298B (en) * | 2022-08-13 | 2023-06-06 | 拉萨迈瑞科技有限公司 | Independent pressure swing adsorption oxygen purification system and method |
| CN115501635B (en) * | 2022-10-09 | 2023-07-04 | 中船(邯郸)派瑞特种气体股份有限公司 | Rectification device and method for efficiently removing impurities in halogenated hydrocarbon |
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| CN103007674A (en) * | 2011-09-27 | 2013-04-03 | 上海弘中实业有限公司 | Composite high concentration oxygenerator based on combining molecular size arrangement priority filtering technology with pressure swing adsorption oxygen generating technology |
| CN104340961A (en) * | 2014-11-18 | 2015-02-11 | 武汉恒业通气体设备有限公司 | Pressure swing adsorption oxygen generating equipment and method |
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| CN103007674A (en) * | 2011-09-27 | 2013-04-03 | 上海弘中实业有限公司 | Composite high concentration oxygenerator based on combining molecular size arrangement priority filtering technology with pressure swing adsorption oxygen generating technology |
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