CN1061578A - Plateau oxygen making machine - Google Patents

Plateau oxygen making machine Download PDF

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Publication number
CN1061578A
CN1061578A CN 90109320 CN90109320A CN1061578A CN 1061578 A CN1061578 A CN 1061578A CN 90109320 CN90109320 CN 90109320 CN 90109320 A CN90109320 A CN 90109320A CN 1061578 A CN1061578 A CN 1061578A
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China
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oxygen
plateau
valve
control valve
multifunctional control
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CN 90109320
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Chinese (zh)
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卢樟好
鲍华明
卢万锁
赵开利
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Institute of Medical Equipment Chinese Academy of Military Medical Sciences
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Institute of Medical Equipment Chinese Academy of Military Medical Sciences
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Priority to CN 90109320 priority Critical patent/CN1061578A/en
Publication of CN1061578A publication Critical patent/CN1061578A/en
Pending legal-status Critical Current

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  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

The invention belongs to gas separation technique field.
It is raw material with the air under 4000 meters air rarefaction conditions of plateau elevation that the present invention has developed a kind of, is the transformation absorption plateau oxygen making machine of sorbent material with the 5A molecular sieve, oxygen yield 2m 3/ h, oxygen purity is more than 90%.Realize on-site manufacture of oxygen for the plateau first, solve plateau medical treatment and life and provide the ideal oxygenerator with the oxygen problem.Multifunctional control valve in this device can replace 26 unit valve work, and novel structure is reliable.

Description

Plateau oxygen making machine
The invention belongs to gas separation technique field.
In recent years, all developed several pressure swing adsorption oxygen making devices both at home and abroad, that this class oxygenerator has is simple to operate, easy to use, produce advantages such as oxygen is fast, with low cost.But China is resembled such high altitude localities, Qinghai-Tibet Platean, and oxygen is very scarce, transports and extremely inconvenient, up to the present, does not also have a kind of energy to be fit to the pressure swing adsorption oxygen making device of highlands on-site manufacture of oxygen.The ZY-2 type pressure swing adsorption oxygen in the past developed of China for example uses oxygen making amount 2m at low height above sea level interiorly 3/ h, oxygen purity is more than 90%.Arrived the Qinghai-Tibet Platean, not only throughput descends, and (oxygen yield drops to 1m 3/ h, oxygen purity is less than 80%), and owing to environmental factorss such as high original air pressure are low, the valve power system can not turn round, and the production of system oxygen can't normally be carried out.For this reason, invented pressure swing adsorption oxygen making device-plateau oxygen making machine that a kind of new suitable plateau is used.
The objective of the invention is to develop a kind of plateau oxygen making machine, under plateau elevation 4000m condition, oxygen yield 2m 3/ h, oxygen purity is more than 90%.Realize on-site manufacture of oxygen for the plateau, solve plateau medical treatment and life and provide the ideal oxygenerator with the oxygen problem.
Main points of the present invention are: development test under plateau elevation 4000m air rarefaction condition, with the air is raw material, with the 5A molecular sieve is four tower omnibus control system technological processs of sorbent material, by multifunctional control valve control purge time and the purge gas stream speed and the oxygen of limiting the quantity of out stage by stage in adsorption process; Take into account in the plateau oxygen making machine that connecting tube forms by air compressor machine, magnetic valve, de-oiling device, water-separating gas filter, big oxygen container, cylinder, little oxygen container, flow, the multifunctional control valve that can replace 26 unit valve work and 4 system oxygen column and electric sequence controllers that load the 5A molecular sieves of using on suitable plateau have been manufactured experimently, its novel structure, reliable.
Below in conjunction with drawings and Examples, the present invention is elaborated:
Fig. 1 is the plateau oxygen making machine process flow sheet
Fig. 2 is multifunctional control valve controlled function figure
Fig. 3 is the multifunctional control valve part sectioned view
Fig. 4 is the valve seat end view
Fig. 5 is the valve body end view
Fig. 6 is system oxygen column (A) transformation absorption working plan
As shown in Figure 1, raw air is compressed to the pressure with 0.34-0.4MPa by air compressor machine (1), through de-oiling device (3) de-oiling, anhydrate through water-separating gas filter (4) again and deoil, depolarization small portion pressurized air through electromagnetic gas valve (2) enter cylinder (9) as power usefulness gas outside, all the other all enter multifunctional control valve (5), send instruction by sequence controller (6), transformation absorption working routine by given enters the system oxygen column (7) (A, B, C, D) that the 5A molecular sieve is housed by pipeline successively.Utilize 5A molecular sieve when pressurization that the loading capacity of nitrogen is increased, the characteristic that during decompression the loading capacity of nitrogen is reduced is separated airborne oxygen nitrogen and is produced oxygen.Nitrogen is drawn at the bottom of tower, through multifunctional control valve (accompanying drawing 3) sourdine (13) noise elimination emptying, oxygen is drawn from system oxygen column top, enters little oxygen container (10) through multifunctional control valve, and then enter big oxygen container (8) and store for future use, oxygen flow is produced under meter (11) indication.Oxygen in oxygen container has the pressure of 0.25-0.3MPa, and is as pipeline oxygen supply oxygen source, particularly desirable.
Multifunctional control valve in the process flow sheet (5) is the heart of plateau system machine, and its controlled function is seen accompanying drawing 2.By accompanying drawing 2 as seen, the transformation absorption working routine of four system oxygen columns (A, B, C, D) of plateau oxygen making machine is as controlling with unit valve, then need be with 26 unit valve, control is complicated, and wherein has one, two unit valve to break down when operation, and inspection and maintenance is all pretty troublesome.Replace 26 unit valve work with a multifunctional control valve now, just can eliminate above-mentioned disadvantage.Additional instruction: 26 unit valve in the accompanying drawing 2 also can be described as from a multifunctional control valve decomposes, thus in following comment, be referred to as respectively branch 1. valve, divide 2. valve
The structural principle of multifunctional control valve as shown in Figure 3.Form by self-regulated air seal set (12), sourdine (13), valve body (14), isolating pad (15), valve seat (16) and rotating shaft (17).As shown in Figure 4, a cannelure (20) is arranged on the end face of valve seat, bottom land has a hole (19) to be connected with oxygen container by cage guide.Also have each 4 in large and small hole in addition, the import and export with 4 system oxygen columns is connected respectively.Have 16 in the large and small hole of five kinds of aperture specifications on the valve body end face (accompanying drawing 5), these holes by the combination of the hole on isolating pad and the valve seat, form the situation (accompanying drawing 2) of 26 unit valve work when valve body rotates.Valve has solved in the past the omnibus control system valve control problem that need could solve with 26 unit valve.The rotating shaft of multifunctional control valve (17), the top embeds valve body, by two rolling bearings (18) location, hangs on the valve seat, under the promotion of the piston rod in cylinder, drives the valve body rotation.This structure greatly reduces the required power of multifunctional control valve operation, helps multifunctional control valve and moves under high height above sea level, low air pressure condition.
The control principle and the working process thereof of multifunctional control valve are as follows: the instruction of multifunctional control valve follow procedure controller, and from zero-bit, dextrorotation is circled, and is plateau oxygen making machine and finishes an omnibus control system circulation, and the cycle is 120 seconds.Be example now with system oxygen column A, in conjunction with the accompanying drawings 6 and accompanying drawing 2, illustrate when multifunctional control valve is in position, different angle, make the working condition of oxygen column A:
0 → (π)/6: divide 1., 5. opening of valves, the system oxygen column is in adsorbed state, and this moment, pressurized air entered at the bottom of tower, and airborne nitrogen is by the 5A molecular sieve adsorption, and oxygen flows out from cat head then by molecular sieve, through multifunctional control valve, enters oxygen container.
(π)/6 → (π)/3: situation is the same.
(π)/3 → (π)/2: divide 1., 6. opening of valves, this stage goes out the oxygen amount strengthens, and the oxygen of this moment is mainly used in boosting of B tower.
(π)/2 → 2/3 π: the system oxygen column is imported and exported and is all closed, and is in the voltage stabilizing state.
2/3 π → 5/6 π: divide
Figure 901093203_IMG1
Opening of valves, the system oxygen column is in the step-down state, is lower than the oxygen rich air of product oxygen slightly from the effusive oxygen purity of cat head, enters the C tower and boosts.
5/6 π → π: divide Opening of valves, the system oxygen column continues step-down.Be used for D tower purge from the effusive oxygen rich air of cat head.
π → 7/6 π: divide
Figure 901093203_IMG3
Opening of valves, the further step-down of system oxygen column.This moment, oxygen purity was lower, but greater than 21%, is used for the D tower and boosts from the effusive oxygen rich air of cat head.
7/6 π → 4/3 π: divide 2. opening of valves, the system oxygen column is in emissions status, goes out through multifunctional control valve sourdine noise elimination emptying from tower bottom flow based on the waste gas of nitrogen.
4/3 π → 3/2 π: divide 3., 2. opening of valves, the system oxygen column is in the purge stage, and purge gas is from the B tower, and purpose makes the nitrogen desorption that is adsorbed on the 5A molecular sieve clean.
3/2 π → 5/3 π: divide 4. opening of valves, the system oxygen column begins to boost, and charges into the low-purity oxygen rich gas from the B tower.
5/3 π → 11/6 π: divide
Figure 901093203_IMG4
Opening of valves, the system oxygen column continues to boost, and charges into the oxygen rich air from the C tower.
11/6 π → 2 π: divide 6. opening of valves, the system oxygen column boosts once more, charges into the oxygen from the D tower.So far, system oxygen column A finishes an omnibus control system cycle operation process.Go round and begin again then, proceed.
System oxygen column B, C, D are identical with the working process of system oxygen column A, are that the initial angle position has nothing in common with each other, and the C tower is than late (π)/2 of A tower, and the B tower is than late (π)/2 of C tower, and the D tower is again than late (π)/2 of B tower.Each system oxygen column has (π)/2 jiao to go out oxygen, and four towers just in time are connected oxygen, and therefore, the plateau oxygen making machine oxygen exhaust can obtain the product oxygen that pressure and flow all weigh fixed.Oxygen yield 2m 3/ h, oxygen purity is more than 90%.Can be used as plateau medical treatment and life desirable oxygenerator with oxygen.

Claims (6)

1, a kind of is raw material with the air, with the 5A molecular sieve is sorbent material, adopt the pressure swing adsorption technique process to produce the method for oxygen, it is characterized in that, by multifunctional control valve control purge time and the purge gas stream speed and the oxygen of in adsorption process, limiting the quantity of out stage by stage, under the air rarefaction condition of plateau (4000 meters of height above sea level), produce the product oxygen of oxygen purity more than 90%.
2, a kind of plateau oxygen making machine of forming by air compressor machine (1), magnetic valve (2), de-oiling device (3), water-separating gas filter (4), big oxygen container (8), cylinder (9), little oxygen container (10), under meter (11) and connecting tube, it is characterized in that it contains the system oxygen column (7) (A, B, C, D) and an electric sequence controller (6) of a multifunctional control valve (5), four filling 5A molecular sieves.
3, plateau oxygen making machine according to claim 2, it is characterized in that multifunctional control valve (5) includes a self-regulated air seal set (12), a sourdine (13), a valve body (14), an isolating pad (15), a valve seat (16) and a rotating shaft (17).
According to claim 2,3 described plateau oxygen making machines, it is characterized in that 4, described rotating shaft (17) is hung on the valve seat by two rolling bearings (18) location.
5, according to claim 2,3 described plateau oxygen making machines, it is characterized in that having a garden cannelure (20) on said valve seat (16) end face, bottom land has a hole (19) to be connected with oxygen container by pipeline, also have each 4 in large and small hole in addition, be connected with four system oxygen column import and exports respectively.
6, according to claim 2,3 described plateau oxygen making machines, it is characterized in that having on said valve body (14) end face 16 of the big apertures of five kinds of aperture specifications, these holes by the combination of the hole on isolating pad and the valve seat, form the situation of 26 unit valve work when valve body rotates.
CN 90109320 1990-11-23 1990-11-23 Plateau oxygen making machine Pending CN1061578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90109320 CN1061578A (en) 1990-11-23 1990-11-23 Plateau oxygen making machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90109320 CN1061578A (en) 1990-11-23 1990-11-23 Plateau oxygen making machine

Publications (1)

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CN1061578A true CN1061578A (en) 1992-06-03

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Application Number Title Priority Date Filing Date
CN 90109320 Pending CN1061578A (en) 1990-11-23 1990-11-23 Plateau oxygen making machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105561498A (en) * 2015-10-10 2016-05-11 唐孝明 Method for solving low-air-pressure oxygen deficit of plateau section

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105561498A (en) * 2015-10-10 2016-05-11 唐孝明 Method for solving low-air-pressure oxygen deficit of plateau section

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