CN205222696U - Nitrogen generator's pressure swing adsorption and purification system - Google Patents
Nitrogen generator's pressure swing adsorption and purification system Download PDFInfo
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- CN205222696U CN205222696U CN201521014699.3U CN201521014699U CN205222696U CN 205222696 U CN205222696 U CN 205222696U CN 201521014699 U CN201521014699 U CN 201521014699U CN 205222696 U CN205222696 U CN 205222696U
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Abstract
The utility model relates to a nitrogen generator's pressure swing adsorption and purification system, its characterized in that: it includes end to end's pressure swing adsorption system and purification system, and the pressure swing adsorption system includes two parallelly connected adsorption tower A (1) and adsorption tower B (2) that set up, be provided with two upper and lower carbon molecular sieve in adsorption tower A (1) and adsorption tower B (2), the purification system includes heat exchanger (8), preheater (10), reaction tower (11), cooler (14) and drying tower (15). Two adsorption towers of this kind of nitrogen generator's pressure swing adsorption system can use by quick automatic switch -over, and system nitrogen efficiency is higher, be equipped with the muffler of optimal design on the adsorption tower blast pipe, the noise of production is less, the adjustment is made to carbon molecular sieve's structure in the adsorption tower for carbon molecular sieve's adsorption effect improves, the nitrogen purity who makes is higher, has satisfied the demand of high -purity, the good reliability, and whenever the oxygen content can both be controlled below 5PPm.
Description
Technical field
The utility model relates to a kind of pressure-variable adsorption and purification system, is specifically related to a kind of pressure-variable adsorption and purification system of Nitrogen plant.
Background technology
PSA(pressure-variable adsorption) nitrogen processed is with clean pressurized air for raw material, take carbonaceous molecular sieve as sorbent material, use pressure-variable adsorption principle, make the carbonaceous molecular sieve being full of micropore selectively adsorb the nitrogen technology novel processed obtaining nitrogen to gas molecule.
But there is this following defect in the pressure-variable adsorption of Nitrogen plant in the past and purification system:
1, the pressure-variable adsorption of conventional Nitrogen plant and two adsorption towers of purification system can not quick automatic switching use, and nitrogen efficiency processed reduces.
2, the noise produced during adsorption tower exhaust in the pressure-variable adsorption of conventional Nitrogen plant and purification system is larger.
3, in the pressure-variable adsorption of conventional Nitrogen plant and purification system, the adsorption effect of the carbonaceous molecular sieve of adsorption tower is poor.
4, the nitrogen gas purity that conventional Nitrogen plant obtains is not high, cannot meet highly purified demand (such as purity is the nitrogen of 99.9995%).
Summary of the invention
The utility model is to overcome above-mentioned deficiency, and provide a kind of nitrogen efficiency processed high, exhaust noise is little, the advantages of good adsorption effect of carbonaceous molecular sieve, improves pressure-variable adsorption and the purification system of the Nitrogen plant of nitrogen gas purity.
The purpose of this utility model is achieved in that
The pressure-variable adsorption of Nitrogen plant and a purification system, comprise end to end pressure swing adsorption system and purification system, and this pressure swing adsorption system comprises two the adsorption tower A and adsorption tower B that are arranged in parallel, and pressurized air is passed through electromagnetic pneumatic control valve for bus one Y by plunger valve
1after separate two arms, arm is by electromagnetic pneumatic control valve for bus two Y
2be connected with the bottom of adsorption tower A, another root arm is by electromagnetic pneumatic control valve for bus three Y
3be connected with the bottom of adsorption tower B, between the bottom of adsorption tower A and the bottom of adsorption tower B, be also connected with a pipeline, this pipeline is equipped with electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5, described electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5between arm is set, this arm is provided with sound damper, and the top of adsorption tower A and adsorption tower B is respectively by electromagnetic pneumatic control valve for bus six Y
6with electromagnetic pneumatic control valve for bus seven Y
7be connected on the inlet manifold of nitrogen storage tank, described electromagnetic pneumatic control valve for bus six Y
6with electromagnetic pneumatic control valve for bus seven Y
7inlet mouth between by band needle valve pipeline connect, electromagnetic pneumatic control valve for bus eight Y the inlet manifold of described nitrogen storage tank is also equipped with
8and one-way throttle valve, with under meter on the escape pipe of nitrogen storage tank;
Described sound damper comprises cylindrical shell, and the inside of cylindrical shell is overlapped successively outer hush pipe, middle hush pipe, interior hush pipe, the bottom of cylindrical shell and electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5between arm fix, the top of cylindrical shell is communicated with air, wherein interior hush pipe only offers mesh in the top of sidewall, middle hush pipe only offers mesh in the bottom of sidewall, outer hush pipe offers mesh at its top, leave gap between the top of described outer hush pipe and cylindrical shell top, leave gap between the outer wall of outer hush pipe and cylinder inboard wall and be filled with palm fibre and pad;
Be provided with in described adsorption tower A and adsorption tower B, lower two carbonaceous molecular sieves, be respectively upper strata carbonaceous molecular sieve and lower floor's carbonaceous molecular sieve, the surface of upper strata carbonaceous molecular sieve and lower floor's carbonaceous molecular sieve all offers micropore hole, the diameter in hole is all greater than the diameter of oxygen molecule and is less than the diameter of nitrogen molecule, the surface void of its carbonaceous molecular sieve is at the middle and upper levels the diamond hole be evenly arranged, the diameter of diamond hole is identical, lower floor's carbonaceous molecular sieve is made up of two-layer carbonaceous molecular sieve, also Stainless Steel Wire is furnished with between two-layer carbonaceous molecular sieve, the surface void of described lower floor carbonaceous molecular sieve is the circular port be evenly arranged, circular port diameter wherein near lower floor's carbonaceous molecular sieve center is minimum, near the largest diameter of the circular port at lower floor's carbonaceous molecular sieve edge, the diameter of circular port from inside to outside becomes large, the diameter of same circular port is circumferentially identical, the two-layer carbonaceous molecular sieve of lower floor's carbonaceous molecular sieve overlaps and arranges.
Described purification system comprises interchanger, pre-heaters, reaction tower, water cooler and drying tower, the inlet mouth of interchanger is connected with general nitrogen pipe, the air outlet of interchanger is connected with the inlet mouth of pre-heaters, the air outlet of pre-heaters is connected in two reaction tower tops parallel with one another respectively, reaction tower is also connected to filling tube and discharge nozzle, reaction tower is connected with the fluid inlet of interchanger by return line, the liquid outlet of interchanger is connected on water cooler, the air outlet of water cooler is connected in the bottom of two drying towers parallel with one another respectively, the air outlet of drying tower is connected to purity nitrogen pipe.
Pressure-variable adsorption and the purification system of the utility model Nitrogen plant have the following advantages:
1, the pressure-variable adsorption of this Nitrogen plant and two adsorption tower energy quick automatic switching of purification system use, and nitrogen efficiency processed is higher.
2, in the pressure-variable adsorption of this Nitrogen plant and purification system, adsorption tower vapor pipe is equipped with the sound damper of optimization design, the noise of generation is less.
3, in the pressure-variable adsorption of this Nitrogen plant and purification system, in adsorption tower, the structure of carbonaceous molecular sieve adjusts, and the adsorption effect of carbonaceous molecular sieve is improved.
4, the pressure-variable adsorption of this Nitrogen plant and the obtained nitrogen gas purity of purification system higher, purity can reach 99.9995%, meets highly purified demand, good reliability, and whenever oxygen level can control at below 5PPm.
Accompanying drawing explanation
Fig. 1 is the pressure-variable adsorption of the utility model Nitrogen plant and the structural representation of purification system.
Fig. 2 is the structural representation of pressure swing adsorption system in the pressure-variable adsorption of the utility model Nitrogen plant and purification system.
Fig. 3 is the internal structure schematic diagram of adsorption tower A in Fig. 2.
Fig. 4 is the internal structure schematic diagram of adsorption tower B in Fig. 2.
Fig. 5 is the surface tissue schematic diagram of Fig. 3 carbonaceous molecular sieve at the middle and upper levels.
Fig. 6 is the surface tissue schematic diagram of Tu3Zhong lower floor carbonaceous molecular sieve.
Fig. 7 is the structural representation of sound damper in Fig. 2.
Fig. 8 is the structural representation of purification system in the pressure-variable adsorption of the utility model Nitrogen plant and purification system.
Wherein: adsorption tower A1, upper strata carbonaceous molecular sieve 1.1, lower floor's carbonaceous molecular sieve 1.2, adsorption tower B2, upper strata carbonaceous molecular sieve 2.1, lower floor's carbonaceous molecular sieve 2.2, sound damper 3, cylindrical shell 3.1, outer hush pipe 3.2, middle hush pipe 3.3, interior hush pipe 3.4, palm fibre pad 3.5, needle valve 4, one-way throttle valve 5, nitrogen storage tank 6, under meter 7, interchanger 8, general nitrogen pipe 9, pre-heaters 10, reaction tower 11, filling tube 12, discharge nozzle 13, return line 14, water cooler 15, drying tower 16, purity nitrogen pipe 17, electromagnetic pneumatic control valve for bus one Y
1, electromagnetic pneumatic control valve for bus two Y
2, electromagnetic pneumatic control valve for bus three Y
3, electromagnetic pneumatic control valve for bus four Y
4, electromagnetic pneumatic control valve for bus five Y
5, electromagnetic pneumatic control valve for bus six Y
6, electromagnetic pneumatic control valve for bus seven Y
7, electromagnetic pneumatic control valve for bus eight Y
8.
Embodiment
See Fig. 1 to Fig. 8, the utility model relates to a kind of pressure-variable adsorption and purification system of Nitrogen plant, comprise end to end pressure swing adsorption system and purification system, this pressure swing adsorption system comprises two the adsorption tower A1 and adsorption tower B2 that are arranged in parallel, and pressurized air is passed through electromagnetic pneumatic control valve for bus one Y by plunger valve
1after separate two arms, arm is by electromagnetic pneumatic control valve for bus two Y
2be connected with the bottom of adsorption tower A1, another root arm is by electromagnetic pneumatic control valve for bus three Y
3be connected with the bottom of adsorption tower B2, between the bottom of adsorption tower A1 and the bottom of adsorption tower B2, be also connected with a pipeline, this pipeline is equipped with electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5, described electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5between arm is set, this arm is provided with sound damper 3, and the top of adsorption tower A1 and adsorption tower B2 is respectively by electromagnetic pneumatic control valve for bus six Y
6with electromagnetic pneumatic control valve for bus seven Y
7be connected on the inlet manifold of nitrogen storage tank 6, described electromagnetic pneumatic control valve for bus six Y
6with electromagnetic pneumatic control valve for bus seven Y
7inlet mouth between by band needle valve 4 pipeline connect, electromagnetic pneumatic control valve for bus eight Y the inlet manifold of described nitrogen storage tank 6 is also equipped with
8with one-way throttle valve 5, with under meter 7 on the escape pipe (general nitrogen pipe 9) of nitrogen storage tank 6.
Wherein sound damper 3 comprises cylindrical shell 3.1, and the inside of cylindrical shell 3.1 is overlapped successively outer hush pipe 3.2, middle hush pipe 3.3, interior hush pipe 3.4, the bottom of cylindrical shell 3.1 and electromagnetic pneumatic control valve for bus four Y
4with electromagnetic pneumatic control valve for bus five Y
5between arm fix, the top of cylindrical shell 3.1 is communicated with air, wherein interior hush pipe 3.4 only offers mesh in the top of sidewall, middle hush pipe 3.3 only offers mesh in the bottom of sidewall, outer hush pipe 3.2 offers mesh at its top, leave gap between the top of described outer hush pipe 3.2 and cylindrical shell 3.1 top, leave gap between the outer wall of outer hush pipe 3.2 and cylindrical shell 3.1 inwall and be filled with palm fibre and pad 3.5.When remaining oxygen is thoroughly discharged into air from adsorption tower by adsorption tower (desorb), gas enters bottom inner barrel 3.1, and middle hush pipe 3.3 is entered from the mesh of interior hush pipe 3.4 sidewall the top, enter outer hush pipe 3.2 in the mesh of therefrom hush pipe 3.3 sidewall bottom again, finally enter cylindrical shell 3.1 top from outer hush pipe 3.2 top mesh and be discharged to again in air.
The adsorptive pressure of described adsorption tower A1 and adsorption tower B2 is 0.7 ~ 0.8MPa, is provided with upper and lower two carbonaceous molecular sieves, is respectively upper strata carbonaceous molecular sieve 1.1 in adsorption tower A1 and adsorption tower B2; 2.1 and lower floor's carbonaceous molecular sieve 1.2; 2.2, upper strata carbonaceous molecular sieve 1.1; 2.1 and lower floor's carbonaceous molecular sieve 1.2; The surface of 2.2 all offers micropore hole, and the diameter in hole is all greater than the diameter of oxygen molecule and is less than the diameter of nitrogen molecule, and it is carbonaceous molecular sieve 1.1 at the middle and upper levels; The surface void of 2.1 is the diamond hole be evenly arranged, and the diameter of diamond hole is identical, lower floor's carbonaceous molecular sieve 1.2; 2.2 are made up of two-layer carbonaceous molecular sieve, are also furnished with Stainless Steel Wire between two-layer carbonaceous molecular sieve, described lower floor carbonaceous molecular sieve 1.2; The surface void of 2.2 is the circular port be evenly arranged, circular port diameter wherein near lower floor's carbonaceous molecular sieve center is minimum, near the largest diameter of the circular port at lower floor's carbonaceous molecular sieve edge, the diameter of circular port from inside to outside becomes large, the diameter of same circular port is circumferentially identical, lower floor's carbonaceous molecular sieve 1.2; The two-layer carbonaceous molecular sieve of 2.2 overlaps and arranges.
Carbonaceous molecular sieve in adsorption tower be levigate by hard coal after, through a series of machine-shaping sintering gained, activated shaping after the crystal grain body of carbonaceous molecular sieve be dispersed with countless micropore hole, hole diameter control is (note: oxygen molecule diameter is less than nitrogen molecule diameter) between oxygen molecule diameter and nitrogen molecule diameter.Entering in hole for the gas molecule being less than hole diameter, being greater than the molecule gear in hole outside hole, playing a part to sieve molecule.
A large amount of molecular sieves is deposited in adsorption tower, when starting working, air pressure in adsorption tower is normal pressure (namely gauge pressure is 0MPa), when the air of 0.7 ~ 0.8MPa pressure enters carbon molecule bed, oxygen partial pressure (note: air pressure is made up of the pressure component of various gas in molecular sieve hole, air pressure is higher, corresponding gas partial pressure is higher) poor with the oxygen partial pressure mineralization pressure in the extraneous air of molecular sieve hole, external oxygen molecule just has the trend entered in molecular sieve hole, under the promotion of this reactive force, a large amount of oxygen molecules enters in molecular sieve hole with speed faster.(note: pressure difference is larger, the velocity of diffusion that oxygen molecule enters molecular sieve hole is faster) a large amount of oxygen molecule enters in molecular sieve hole, and nitrogen molecule diameter is greater than molecular sieve hole diameter, therefore do not enter in molecular sieve hole, enrichment in gas phase just outside molecular sieve, thus nitrogen and oxygen are separated from air.Owing to having certain volume in molecular sieve hole, after the adsorption tower work regular hour, the oxygen molecule entered in molecular sieve gets more and more, the oxygen partial pressure of inside, molecular sieve hole is more and more higher, when the oxygen partial pressure of inside, molecular sieve hole is equal with outside oxygen partial pressure, the trend that oxygen does not now flow, only free diffusing inside and outside molecular sieve hole, be now molecular sieve adsorption oxygen and reached capacity state.(carbonaceous molecular sieve raises with adsorptive pressure the maximum equilibrium adsorption capacity of oxygen and increases, otherwise then reduces, so adsorptive pressure should control in higher pressure range, is normally 0.7 ~ 0.8MPa, to reach preferably adsorption effect).After molecular sieve adsorption in adsorption tower is saturated, to works next time the oxygen molecule in molecular sieve hole need be emitted.After end-of-job, adsorption tower is discharged waste gas outside tower, the pressure of carbonaceous molecular sieve layer drops to normal pressure by all pressing by 0.3 ~ 0.6MPa, oxygen partial pressure in carbonaceous molecular sieve hole is greater than external oxygen pressure component, oxygen outwardly, just discharges the oxygen molecule of absorption in hole in molecular sieve hole.Making nitrogen by pressure swing adsorption process that Here it is.
Air after such purification just enters two adsorption towers of Nitrogen plant respectively through two-way, being switched by the electromagnetic pneumatic control valve for bus on Nitrogen plant makes two adsorption towers carry out alternating sorbent and desorb, thus by the most of the nitrogen in air and small part oxygen separating, and by oxygen rich vent, nitrogen is transported in nitrogen storage tank.
The pressure-variable adsorption of this Nitrogen plant and the working process of purification system are:
One, the flow velocity of air inlet is first regulated by plunger valve, by electromagnetic pneumatic control valve for bus one Y
1, electromagnetic pneumatic control valve for bus two Y
2enter tower body by adsorption tower A bottom, carbonaceous molecular sieve bed adsorption in adsorption tower, and progressively boost, in the process, oxygen molecule in air is attracted in carbonaceous molecular sieve micropore, and a large amount of nitrogen and a small amount of oxygen are flowed out by tower top, then through electromagnetic pneumatic control valve for bus six Y
6, electromagnetic pneumatic control valve for bus eight Y
8, one-way throttle valve makes nitrogen enter nitrogen buffer tank, completes the nitrogen processed of adsorption tower A;
While adsorption tower A nitrogen, the oxygen molecule adsorbed in adsorption tower B is through electromagnetic pneumatic control valve for bus five Y
5emptying with sourdine, complete adsorption tower B desorb deoxidation.
Two, when adsorption tower A works for some time, the carbonaceous molecular sieve in adsorption tower A is to the absorption of oxygen close to time saturated, then this adsorption tower A stops absorption, now electromagnetic pneumatic control valve for bus one Y
1, electromagnetic pneumatic control valve for bus four Y
4, electromagnetic pneumatic control valve for bus five Y
5, electromagnetic pneumatic control valve for bus eight Y
8all be in closing condition, and electromagnetic pneumatic control valve for bus two Y
2, electromagnetic pneumatic control valve for bus three Y
3, electromagnetic pneumatic control valve for bus six Y
6, electromagnetic pneumatic control valve for bus seven Y
7be in opened condition, implementation adsorption tower A, adsorption tower B all press simultaneously, and the effect of all pressing is that the gas (this oxygen content gas is few) in outer for A tower gas phase is transferred to B tower recycling, all presses the time to be 1 ~ 2 second.
Three, namely two adsorption towers switch after all pressing and enter adsorption tower B and adsorb, and adsorption tower A desorption state, now pressurized air is through electromagnetic pneumatic control valve for bus one Y
1, electromagnetic pneumatic control valve for bus three Y
3enter adsorption tower B bottom, the carbonaceous molecular sieve bed adsorption in adsorption tower B, the nitrogen separated is through electromagnetic pneumatic control valve for bus seven Y
7, electromagnetic pneumatic control valve for bus eight Y
8, one-way throttle valve enters nitrogen basin, completes the absorption nitrogen of adsorption tower B, adsorption tower A, adsorption tower B two tower alternating sorbent, desorb, thus by the most of the nitrogen in air and small part oxygen separating, and by oxygen rich vent, nitrogen is transported in nitrogen storage tank.
Described purification system comprises interchanger 8, pre-heaters 10, reaction tower 11, water cooler 14 and drying tower 15, the inlet mouth of interchanger 8 is connected with general nitrogen pipe 9, for passing into non-highly purified ordinary nitrogen, the air outlet of interchanger 8 is connected with the inlet mouth of pre-heaters 10, the air outlet of pre-heaters 10 is connected in two reaction tower 11 tops parallel with one another respectively, reaction tower 11 is also connected to filling tube 12 and discharge nozzle 13, after adding raw material in filling tube 12 and passing into the oxygen reaction in the gas of reaction tower 11, discharge from discharge nozzle 13, this reaction tower 11 is for removing the oxygen be mingled with in nitrogen, reaction tower 11 is connected with the fluid inlet of interchanger 8 by return line 14, the liquid outlet of interchanger 8 is connected on water cooler 15, the air outlet of water cooler 15 is connected in the bottom of two drying towers 16 parallel with one another respectively, by drying tower 16 by after gas drying, just highly purified nitrogen can be obtained from the purity nitrogen pipe 17 be connected with drying tower 16 air outlet.
Ordinary nitrogen is passed into the gaseous media import of interchanger by purification system, interchanger enters reaction tower after being heated by pre-heaters by nitrogen, the oxygen be mingled with in removing nitrogen, the gas-liquid mixture stayed after reaction tower reaction enters the liquid medium entrance of interchanger by return line, pass into cooling down in water cooler subsequently, just obtain highly purified nitrogen finally by after drying tower drying.
Claims (2)
1. the pressure-variable adsorption of a Nitrogen plant and purification system, it is characterized in that: it comprises end to end pressure swing adsorption system and purification system, pressure swing adsorption system comprises two adsorption tower A(1 be arranged in parallel) and adsorption tower B(2), pressurized air is passed through electromagnetic pneumatic control valve for bus one (Y by plunger valve
1) after separate two arms, arm is by electromagnetic pneumatic control valve for bus two (Y
2) with adsorption tower A(1) bottom be connected, another root arm is by electromagnetic pneumatic control valve for bus three (Y
3) with adsorption tower B(2) bottom be connected, adsorption tower A(1) bottom and adsorption tower B(2) bottom between be also connected with a pipeline, electromagnetic pneumatic control valve for bus four (Y this pipeline is equipped with
4) and electromagnetic pneumatic control valve for bus five (Y
5), described electromagnetic pneumatic control valve for bus four (Y
4) and electromagnetic pneumatic control valve for bus five (Y
5) between arm is set, this arm is provided with sound damper (3), adsorption tower A(1) and adsorption tower B(2) top respectively by electromagnetic pneumatic control valve for bus six (Y
6) and electromagnetic pneumatic control valve for bus seven (Y
7) be connected on the inlet manifold of nitrogen storage tank (6), described electromagnetic pneumatic control valve for bus six (Y
6) and electromagnetic pneumatic control valve for bus seven (Y
7) inlet mouth between by band needle valve (4) pipeline connect, electromagnetic pneumatic control valve for bus eight (Y the inlet manifold of described nitrogen storage tank (6) is also equipped with
8) and one-way throttle valve (5), with under meter (7) on the escape pipe of nitrogen storage tank (6);
Described sound damper (3) comprises cylindrical shell (3.1), and the inside of cylindrical shell (3.1) is overlapped successively outer hush pipe (3.2), middle hush pipe (3.3), interior hush pipe (3.4), the bottom of cylindrical shell (3.1) and electromagnetic pneumatic control valve for bus four (Y
4) and electromagnetic pneumatic control valve for bus five (Y
5) between arm fix, the top of cylindrical shell (3.1) is communicated with air, wherein interior hush pipe (3.4) only offers mesh in the top of sidewall, middle hush pipe (3.3) only offers mesh in the bottom of sidewall, outer hush pipe (3.2) offers mesh at its top, leave gap between the top of described outer hush pipe (3.2) and cylindrical shell (3.1) top, leave gap between the outer wall of outer hush pipe (3.2) and cylindrical shell (3.1) inwall and be filled with palm fibre and pad (3.5);
Described adsorption tower A(1) and adsorption tower B(2) in be provided with upper and lower two carbonaceous molecular sieves, be respectively upper strata carbonaceous molecular sieve (1.1; 2.1) and lower floor's carbonaceous molecular sieve (1.2; 2.2), upper strata carbonaceous molecular sieve (1.1; 2.1) and lower floor's carbonaceous molecular sieve (1.2; 2.2) surface all offers micropore hole, and the diameter in hole is all greater than the diameter of oxygen molecule and is less than the diameter of nitrogen molecule, described upper strata carbonaceous molecular sieve (1.1; 2.1) surface void is the diamond hole be evenly arranged, and the diameter of diamond hole is identical, lower floor's carbonaceous molecular sieve (1.2; 2.2) be made up of two-layer carbonaceous molecular sieve, between two-layer carbonaceous molecular sieve, be also furnished with Stainless Steel Wire, described lower floor carbonaceous molecular sieve (1.2; 2.2) surface void is the circular port be evenly arranged, circular port diameter wherein near lower floor's carbonaceous molecular sieve center is minimum, near the largest diameter of the circular port at lower floor's carbonaceous molecular sieve edge, the diameter of circular port from inside to outside becomes large, the diameter of same circular port is circumferentially identical, lower floor's carbonaceous molecular sieve (1.2; 2.2) two-layer carbonaceous molecular sieve overlaps and arranges.
2. system according to claim 1, described purification system comprises interchanger (8), pre-heaters (10), reaction tower (11), water cooler (14) and drying tower (15), the inlet mouth of interchanger (8) is connected with general nitrogen pipe (9), the air outlet of interchanger (8) is connected with the inlet mouth of pre-heaters (10), the air outlet of pre-heaters (10) is connected in two reaction tower (11) tops parallel with one another respectively, reaction tower (11) is also connected to filling tube (12) and discharge nozzle (13), reaction tower (11) is connected by the fluid inlet of return line (14) with interchanger (8), the liquid outlet of interchanger (8) is connected on water cooler (15), the air outlet of water cooler (15) is connected in the bottom of two drying towers (16) parallel with one another respectively, the air outlet of drying tower (16) is connected to purity nitrogen pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014699.3U CN205222696U (en) | 2015-12-09 | 2015-12-09 | Nitrogen generator's pressure swing adsorption and purification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014699.3U CN205222696U (en) | 2015-12-09 | 2015-12-09 | Nitrogen generator's pressure swing adsorption and purification system |
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| Publication Number | Publication Date |
|---|---|
| CN205222696U true CN205222696U (en) | 2016-05-11 |
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| CN201521014699.3U Expired - Fee Related CN205222696U (en) | 2015-12-09 | 2015-12-09 | Nitrogen generator's pressure swing adsorption and purification system |
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| Country | Link |
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| CN (1) | CN205222696U (en) |
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2015
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214443 No. 25 Yishan Road, Lingang Street, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangsu sharejoy Gas System Co. Ltd. Address before: No. 2030 Zhencheng Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangyin Tongyue Machinery Equipment Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |