CN2925585Y

CN2925585Y - Air-intaking booster air separator of 12-bed molecular sieve in plateau

Info

Publication number: CN2925585Y
Application number: CN 200520027381
Authority: CN
Inventors: 宋兰庭; 王建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-16
Filing date: 2005-09-16
Publication date: 2007-07-25
Anticipated expiration: 2015-09-16

Abstract

The utility model relates to a plateau gas inlet pressurization 12-bed molecular sieve air separator which is characterized by comprising a gas inlet pressurizer, a 12-bed molecular sieve air separator, a graphite rotary-type PSA distribution valve; the gas inlet pressurizer is connected with the 12-bed molecular sieve air separator through an air compressor, and the 12-bed molecular sieve air separator is provided with the graphite rotary-type PSA distribution valve. The utility model has the advantages of that: 1. High oxygen production. 2. As the utility model adopts the graphite rotor driven by the motor to realize the separation of the 12-bed molecular sieve PSA air, the device can gain the obvious the simplification and integration, which improves the work efficiency and prolongs the service life. 3. The graphite rotary-type PSA distribution valve is characterized by the small volume, the good airtightness, the wear resistance, the high temperature resistance, the low temperature resistance, the corrosion resistance, the high reliability, the strong altitude acclimatization, etc. In addition, the utility model can make the oxygen generating efficiency gain the obvious improvement.

Description

12 molecular sieve air separators of plateau plenum

Technical field:

The present utility model belongs to a kind of separation of air oxygenerator, and the particularly a kind of PSA of utilization technology carries out in air separation and the plateau low pressure environment air compressor gas handling system being carried out 12 molecular sieve air separators of plateau plenum of supercharging compensation.

Background technology:

Pressure swing adsorption (Pressure Swing adsorption, be called for short PSA) be nineteen sixty by people such as Skarstrome invention, at the industrial drying of air and the purifying of hydrogen of being applied at first, began to be used for separation of air system oxygen in 1970.Pressure swing adsorption is compared than other industry making oxygen by air separation method such as cryogenic air separation method, the empty point-score of membrane type etc., have many advantages such as small investment, energy consumption are low, safety, convenience, automaticity height, be applicable to the middle-size and small-size equipment that those oxygen demands are little.At present, the equipment of utilization PSA technology divided gas flow all be air as unstrpped gas, reach the purpose of divided gas flow component by gas circulating in molecular sieve bed.But these traditional PSA system requirements use many electric control elements (as magnetic valve etc.), also have up to a hundred independently machinery and electronic units, these equipment all since dimensional problem or flexibility and reliability problems make use limited.

Summary of the invention:

The purpose of this utility model provide the plenum of a kind of plateau 12 molecular sieve air separators with regard to being to overcome above-mentioned the deficiencies in the prior art, the element that this device uses is few, volume is little, long service life, easy to maintenance, and operating efficiency and reliability height.

The technical solution of the utility model is: plenum 12 molecular sieve air separators in a kind of plateau is characterized in that: be made up of air-admission pressure-booster, 12 molecular sieve air separators and the rotary PSA distributing valve of graphite; Air-admission pressure-booster is connected with 12 molecular sieve air separators by air compressor, and the rotary PSA distributing valve of graphite is installed on 12 molecular sieve air separators.

Described 12 molecular sieve air separators are made up of 12 molecular sieves and the rotary PSA distributing valve of graphite, and 12 molecular sieves are provided with oxygen exhaust, exhaust outlet, upper and lower air chamber and base; Arrange molecular sieve bed according to the order of sequence for 12 and be installed between the lower chamber, oxygen exhaust is arranged on the upper chamber, and exhaust outlet is arranged on the lower chamber, and the rotary PSA distributing valve of graphite is arranged on the bottom of lower chamber.

The rotary PSA distributing valve of described graphite is made up of the tightly bloated spring of silicon-carbon stator dish, graphite rotator dish, cam platen, ball dish, end cap and reducing motor; Graphite rotator dish middle part is provided with compressed air balance guiding airway pressure, is respectively equipped with decompress(ion) concave surface exhaust outlet and oxygen pressure flushing air pressure balance duct in the both sides of this airway pressure; Valve port on the silicon-carbon stator dish is circumferential arrangement; 12 molecular sieves can insert in the valve port on the silicon-carbon stator dish.

Described air-admission pressure-booster by high-speed electric expreess locomotive, worm gear chamber, be installed in the indoor wormwheel blade of worm gear and form, booster is provided with atmosphere air inlet and pressurized air outlet.

The utility model has the advantages that: 1, between the ratio in adsorbent bed length and bed footpath, set a turnover value with 12 molecular sieve air separators that two oxygenerators of tradition are compared among the design, when the ratio in adsorbent bed length and bed footpath equaled this value, the oxygen in the unstrpped gas just in time was adsorbed fully.Determine the long 20cm of bed thus, bed footpath 3.5cm has improved oxygen-producing amount.2, owing to adopt electric motor driven graphite rotator to realize 12 molecular sieve PSA air separation, this device can significantly be simplified with integrated.The rotating speed of this rotary valve is very slow, and per minute has only 3.3 to change, and the speed of friction is very low, and wearing and tearing can be left in the basket, thus the test shows that this valve is carried out it almost have indefinite service life.Adopt this distributing valve to significantly improve operating efficiency, compare reliability with traditional solenoid control both at home and abroad and improve ten times nearly, time between failures reached more than 15 years, and oxygen generation efficiency is significantly improved in addition.3, the rotary distributing valve of graphite have that volume is little, good airproof performance, wear-resistant, high temperature resistant, low temperature resistant, corrosion-resistant, characteristics such as reliability is high, altitude acclimatization is strong.In addition, oxygen generation efficiency is significantly improved.

Description of drawings:

Fig. 1 is overall structure figure of the present utility model

Fig. 2 is the rotary PSA distributing valve of a graphite assembly drawing

Fig. 3 is the front view of 12 molecular sieves

Fig. 4 is the rearview of 12 molecular sieves

Fig. 5 is the arrangement architecture figure of 12 molecular sieves

Fig. 6 is the front view of graphite rotator dish

Fig. 7 is the rearview of graphite rotator dish

Fig. 8 is the valve port ordering chart of silicon-carbon stator dish

Fig. 9 is the front view of air-admission pressure-booster

Figure 10 is the side view of air-admission pressure-booster

The specific embodiment;

As shown in Figure 1: 12 molecular sieve air separation oxygenerators of a kind of vehicular, form by air-admission pressure-booster, 12 molecular sieve air separators and the rotary PSA distributing valve of graphite.

Shown in Fig. 3,4,5: as described in 12 molecular sieve air separators arrange molecular sieve bed (tube) 1, oxygen outlet 2, air inlet 26, exhaust outlet 3, upper and lower air chamber 11,12, the rotary PSA distributing valve 13 of graphite and base 14 according to the order of sequence by 12 and form; Arrange molecular sieve bed according to the order of sequence for 12 and be installed between the upper and lower air chamber, oxygen exhaust is arranged on the upper chamber, and exhaust outlet is arranged on the lower chamber, and the rotary PSA distributing valve of graphite is arranged on the bottom of lower chamber.

As shown in Figure 2: the rotary PSA distributing valve of described graphite is made up of the tightly bloated spring 5 of graphite rotator dish 4, cam platen, silicon-carbon stator dish 18, pin type ball dish 6, end cap 7 and reducing motor 9, end cap is provided with steam vent 8, and the middle part is a motor output shaft connector 10.Shown in Fig. 6,7,8: as described in graphite rotator dish middle part be provided with compressed air balance guiding airway pressure 15, be respectively equipped with decompress(ion) concave surface exhaust outlet 16 and oxygen in the both sides of this airway pressure and press flushing air pressure balance duct 17; Valve port 19 on the silicon-carbon stator dish 18 is circumferential arrangement.12 molecular sieves can insert in the valve port on the silicon-carbon stator dish.

Shown in Fig. 9,10: air-admission pressure-booster 20 is connected with air inlet 26 on 12 molecular sieve air separators by air compressor.The air compressor air-admission pressure-booster has the automatic pressurization control function of air compressor air inlet, and its operating voltage is DC12V/3.5A, and nominal power is 40W, and rated engine speed is 7500r/min, and maximum stream flow is 250L/min.It is provided with high-speed electric expreess locomotive 21, worm gear chamber 22, be installed in the indoor worm gear leaf 23 of worm gear, atmosphere air inlet 24 and pressurized air outlet 25.

Operation principle of the present utility model is: at first carry out plenum by air compressor machine, air enters from the air inlet of compressor, thereby enter 12 molecular sieve air splitter PSA air-seperation systems by the rotary distributing valve by-pass valve control guiding of graphite rotator compressed air after compression, the rotary distributing valve of utilization graphite rotator is realized pressurization absorption, decompression desorption PSA air separation.This rotary distributor is a rotary distributing valve of small-sized graphite rotator, constantly slowly runs under a built-in small-sized decelerator drives, and the fractional motor that is similar in the electronic clock drives, and per minute has only 3.3 to change.This changeover valve can allow the compressed air of air compressor enter air-seperation system when work, at any time and angle, all there is valve guiding compressed air to four to be in the molecular sieve bed (tube) of adsorbed state, do pressurization absorption nitrogen (allowing oxygen pass through) motion, four molecular sieve beds (tube) are done decompression and are desorbed the motion of discharging nitrogen in addition simultaneously, and be in parsing (cleaning) state, the composition of air of absorption is discharged into the atmosphere; Remaining four molecular sieve beds are connected to each other by this valve in 12 molecular sieve beds, the pressure that they are produced between absorption and dispose procedure with balance.This valve comprises the graphite rotator of a smooth balance pressure reduction, and closely related with a smooth silicon-carbon stator dish.This smooth valve is always towards they self bottom.Therefore it be do not stop do pressurization absorption, the more than rotation of decompression desorption circulation, make the rotation of PSA graphite join valve and rotate comparatively slowly, constantly make oxygen enrichment in the mode of periodic duty.

Claims

1,12 molecular sieve air separators of a kind of plateau plenum is characterized in that: be made up of air-admission pressure-booster, 12 molecular sieve air separators and the rotary PSA distributing valve of graphite; Air-admission pressure-booster is connected with 12 molecular sieve air separators by air compressor, and the rotary PSA distributing valve of graphite is installed on 12 molecular sieve air separators.

2,12 molecular sieve air separators of plateau plenum according to claim 1, it is characterized in that: described 12 molecular sieve air separators are made up of 12 molecular sieves and the rotary PSA distributing valve of graphite, and 12 molecular sieves are provided with oxygen exhaust, exhaust outlet, upper and lower air chamber and base; Arrange molecular sieve bed according to the order of sequence for 12 and be installed between the lower chamber, oxygen exhaust is arranged on the upper chamber, and exhaust outlet is arranged on the lower chamber, and the rotary PSA distributing valve of graphite is arranged on the bottom of lower chamber.

3,12 molecular sieve air separators of plateau plenum according to claim 1 is characterized in that: the rotary PSA distributing valve of described graphite is made up of the tightly bloated spring of silicon-carbon stator dish, graphite rotator dish, cam platen, ball dish, end cap and reducing motor; Graphite rotator dish middle part is provided with compressed air balance guiding airway pressure, is respectively equipped with decompress(ion) concave surface exhaust outlet and oxygen pressure flushing air pressure balance duct in the both sides of this airway pressure; Valve port on the silicon-carbon stator dish is circumferential arrangement; 12 molecular sieves can insert in the valve port on the silicon-carbon stator dish.

4,12 molecular sieve air separators of plateau plenum according to claim 1, it is characterized in that: described air-admission pressure-booster by high-speed electric expreess locomotive, worm gear chamber, be installed in the indoor wormwheel blade of worm gear and form, booster is provided with atmosphere air inlet and pressurized air outlet.