CN2815478Y - Pressure swing adsorption nitrogen equipment - Google Patents
Pressure swing adsorption nitrogen equipment Download PDFInfo
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- CN2815478Y CN2815478Y CN 200520013019 CN200520013019U CN2815478Y CN 2815478 Y CN2815478 Y CN 2815478Y CN 200520013019 CN200520013019 CN 200520013019 CN 200520013019 U CN200520013019 U CN 200520013019U CN 2815478 Y CN2815478 Y CN 2815478Y
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Abstract
The utility model relates to variable pressure adsorption nitrogen equipment, which comprises two adsorption towers, air intake valves, air vent valves and air outlet valves, wherein the air intake valves and the air vent valves are respectively arranged at the lower parts of the two adsorption towers, and are connected by pipelines; the air outlet valves connected by pipelines are respectively arranged at the upper parts of the two adsorption towers; vacuum pumping equipment is connected to air vent pipelines which are connected to the lower parts of the two adsorption towers in parallel; the vacuum pumping equipment is composed of at least one Roots blower, and simultaneously at least one silencer is also connected to the air vent pipelines in series. The utility model belongs to the improvement of the prior art, and has the advantages of simple structure, convenient operation and good reliability; overall performance is enhanced, and energy consumption is dropped.
Description
Technical field
The utility model relates to a kind of employing high-quality molecular sieve is adsorbent, utilizes the transformation absorption principle, directly obtains the transformation absorption nitrogen gas preparing of nitrogen from compressed air.
Background technology
In the prior art, the structure composition of transformation absorption nitrogen gas preparing includes: two adsorption towers of A, B, the bottom between two towers are connected to one group of air intake valve and one group of drain tap respectively, are connected to one group of valve of giving vent to anger on the top of two towers, see shown in the accompanying drawing 1; Its operation principle is: 1, under certain pressure, because kinetic effect, oxygen, the nitrogen diffusion rate on molecular sieve differs greatly, and in the short time, oxygen molecule is adsorbed in a large number by carbon molecular sieve, and nitrogen molecular reaches the effect that oxygen nitrogen separates thus at gas phase enrichment; 2, owing to carbon molecular sieve has notable difference to the adsorption capacity of oxygen along with the difference of pressure, reduce pressure, oxygen molecule that can the absorption of desorb carbon molecular sieve makes carbon molecular sieve regeneration, is able to repetitive cycling and uses; 3, this equipment adopts two adsorption tower flow processs, and nitrogen, a tower desorption and regeneration, cycle alternation, the continuously high-quality nitrogen of output are produced in tower absorption; Its general workflow is as shown in Figure 1: after the start work, A tower air intake valve V4 opens, and give vent to anger valve V2, V1 and B tower drain tap V7, V8 open, and this moment, nitrogen, B tower absorption regeneration were produced in the work of A tower; After A tower product nitrogen finished, B tower air intake valve V5 opened, and give vent to anger valve V3, V1 and A tower drain tap V6, V8 open, and at this moment, nitrogen, A tower desorption and regeneration are produced in the work of B tower; And then switch to A tower work, the regeneration of B tower, so cycle alternation, the continuously high-quality nitrogen of output.Carry out under normal pressure in above-mentioned traditional carbon molecular sieve desorption and regeneration mode, purge the desorption effect that reach carbon molecular sieve to regenerator with highly purified nitrogen by work tower, this has many defectives: the one, increased the air consumption of equipment; The 2nd, high-purity finished product nitrogen runs off in vain; The 3rd, still have the regeneration pressure of 0.2-0.3kg in the regenerator, cause the regeneration efficiency of carbon molecular sieve only to reach about 85%, so desorption effect is not good.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, easy to use, good reliability, take to vacuumize the transformation absorption nitrogen gas preparing of regeneration, the bottom that this equipment includes two adsorption towers, two adsorption towers separately and be connected to air intake valve and the drain tap that connects through pipeline, the top of two adsorption towers is connected to the valve of giving vent to anger that connects through pipeline separately, is connected to a vaccum-pumping equipment on the bottom of described two adsorption towers and the discharge duct that connects.
Described vaccum-pumping equipment is that at least one roots blower formed, and also is serially connected with at least one silencer simultaneously on discharge duct.
The utility model belongs to improvements over the prior art, and it has simple in structure, and is easy to use, good reliability, and the complete machine performance improves greatly, and energy consumption reduces, characteristics such as economic obviously benefit raising.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram.
Fig. 2 is a structural representation of the present utility model.
The specific embodiment
Be described in detail below in conjunction with 2 pairs of the utility model of accompanying drawing: shown in Figure 2, the utility model mainly includes two adsorption towers of A, B, and the bottom of two adsorption tower A, B separately and be connected to air intake valve V24, V25 and drain tap V26, the V27 that connects through pipeline; Air inlet pipe is connected between air intake valve V24, the V25, and blast pipe is connected between drain tap V26, the V27; The top of two adsorption tower A, B is connected to give vent to anger valve V22, the V23 that connects through pipeline separately, and escape pipe is connected to scene 2 air valve V22, V23; On the blast pipe between two drain tap V26, the V27, be connected to a drain tap V28, and picking out to be connected on the pipeline at least and form a vaccum-pumping equipment M by a roots blower thereafter; Simultaneously also be connected to a silencer X on the pipeline at least picking out; The utility model also is connected to an air valve V21 on the escape pipe between scene 2 air valve V22, the V23.
The utility model is when start work, owing to acquired a vaccum-pumping equipment----roots blower at waste discharge gas place, after the pneumatic work of equipment waste discharge, control the instruction of the valve closing at silencer place by PLC output, be responsible for vacuumizing action by roots blower again, make pressure in the regenerator reduce to-0.2kg about, thereby improve the regeneration efficiency of carbon molecular sieve.
Reduction with pressure descends the utility model because carbon molecular sieve is to the adsorption capacity of oxygen, through vacuumize handle regenerator after, the air bleeding valve bore of this equipment can correspondingly dwindle than originally; Regeneration efficiency brings up to 95% by original 85%; Compressed-air actuated consumption also can reduce about 5%; The rate of recovery of molecular sieve improves about 15%.
Claims (2)
1, a kind of transformation absorption nitrogen gas preparing, the bottom that it mainly includes two adsorption towers, two adsorption towers separately and be connected to air intake valve and the drain tap that connects through pipeline, the top of two adsorption towers is connected to the valve of giving vent to anger that connects through pipeline separately, it is characterized in that the bottom of described two adsorption towers (A, B) and the discharge duct that connects on be connected to a vaccum-pumping equipment (M).
2,, it is characterized in that described vaccum-pumping equipment (M) at least one roots blower composition, also is serially connected with at least one silencer (X) simultaneously on discharge duct according to the described transformation absorption of claim 1 nitrogen gas preparing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013019 CN2815478Y (en) | 2005-07-04 | 2005-07-04 | Pressure swing adsorption nitrogen equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013019 CN2815478Y (en) | 2005-07-04 | 2005-07-04 | Pressure swing adsorption nitrogen equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2815478Y true CN2815478Y (en) | 2006-09-13 |
Family
ID=36995278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013019 Expired - Fee Related CN2815478Y (en) | 2005-07-04 | 2005-07-04 | Pressure swing adsorption nitrogen equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2815478Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301713A (en) * | 2013-07-05 | 2013-09-18 | 王勤修 | Pressure swing adsorption flow |
-
2005
- 2005-07-04 CN CN 200520013019 patent/CN2815478Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301713A (en) * | 2013-07-05 | 2013-09-18 | 王勤修 | Pressure swing adsorption flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20120704 |