CN210030056U - Quick start type pressure swing adsorption nitrogen machine - Google Patents
Quick start type pressure swing adsorption nitrogen machine Download PDFInfo
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- CN210030056U CN210030056U CN201920655090.6U CN201920655090U CN210030056U CN 210030056 U CN210030056 U CN 210030056U CN 201920655090 U CN201920655090 U CN 201920655090U CN 210030056 U CN210030056 U CN 210030056U
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Abstract
The utility model relates to a quick start-up type pressure swing adsorption nitrogen gas machine, including adsorption apparatus structure, nitrogen gas groove, air introduction and purifier, the air introduction communicates with purifier, air groove, adsorption apparatus structure and nitrogen gas groove in proper order, the air inlet of air groove intercommunication adsorption apparatus structure bottom, the gas outlet at nitrogen gas groove intercommunication adsorption apparatus structure top, the adsorption apparatus structure lower extreme still sets up the gas vent, this gas vent intercommunication vacuum pump to communicate with the external world through the blast pipe, be used for the evacuation desorption. The utility model adopts the adsorption cylinder A and the adsorption cylinder B to alternately adsorb and desorb; and a vacuum pump is arranged, when the machine is started, the vacuum pump is started to pump air in the adsorption mechanism, actual adsorption and desorption operations are performed, the start of the nitrogen adsorption machine is accelerated, and a stable operation result can be obtained within 5-20 minutes.
Description
Technical Field
The utility model relates to a nitrogen generator field, concretely relates to quick start-up type pressure swing adsorption nitrogen machine.
Background
Nitrogen is produced by separating nitrogen from oxygen in air using a gas separation process, typically using a specially treated activated carbon, i.e., a carbon molecular sieve, to separate the air. The aperture of the carbon molecular sieve is in the diameter range of nitrogen and oxygen molecules, and the oxygen molecules are smaller than the nitrogen molecules in volume, so that the oxygen molecules are adsorbed on the surface of the carbon molecular sieve firstly. The nitrogen molecules are discharged into the storage tank through the molecular sieve bed layer to achieve the purpose of nitrogen preparation, and the oxygen molecules are desorbed by the equipment and discharged into the atmosphere to achieve the purpose of molecular sieve regeneration.
After a period of adsorption, the carbon molecular sieve is saturated with adsorbed oxygen molecules and needs to be regenerated, and the regeneration is realized by depressurization desorption. Since carbon molecular sieves are no longer capable of adsorbing gas molecules at low pressure, most molecules are evacuated at reduced pressure, a process known as desorption.
In order to achieve continuous gas supply, a multi-tower operation is usually adopted, when the adsorption cylinder A is in an adsorption state, the adsorption cylinder B is in a desorption state, and the two cylinders are mutually switched into the adsorption and desorption states by utilizing time control and switching. The nitrogen produced by the pressure swing adsorption nitrogen making machine flows into a nitrogen tank for the use of factory processes.
During the start-up, because of the limitation of the large amount of air in the adsorption cylinder, a period of time, such as 30 minutes to 2 hours, is required to reach stable operation, i.e. the waiting time during production is affected. The situation is particularly serious when a plurality of nitrogen machines are used, and when the nitrogen quantity is not enough, and another nitrogen machine is urgently needed to be started, the nitrogen machine needs to spend too long time waiting, so that the difficulty that the air source is insufficient or the purity is reduced on site is caused. In another case, in a plant for producing carbon molecular sieves, a small pressure swing adsorption nitrogen machine is usually used for testing the performance of a product, but each detection time needs to wait for 30 minutes to 1 hour before stable and correct data can be obtained, which causes delay and trouble in production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick start-up type pressure swing adsorption nitrogen machine for solve the problem that the absorption nitrogen machine among the prior art needs the longer time to wait when the start.
The utility model provides a quick start-up type pressure swing adsorption nitrogen gas machine, including adsorption apparatus structure, nitrogen gas groove, air introduction and purifier, the air introduction communicates with purifier, air groove, adsorption apparatus structure and nitrogen gas groove in proper order, the air inlet of air groove intercommunication adsorption apparatus structure bottom, the gas outlet at nitrogen gas groove intercommunication adsorption apparatus structure top, the adsorption apparatus structure lower extreme still sets up the gas vent, this gas vent intercommunication vacuum pump to communicate with the external world through the blast pipe, be used for the evacuation desorption.
Further, air induction and purifier are including air induction device and the purifier that the intercommunication set up, air induction device is the compressor, purifier is including the adsorption dryer, filter and the active carbon adsorption jar that connect gradually for get rid of oil, water and the dust in the compressed air.
Further, the adsorption mechanism comprises an adsorption cylinder A and an adsorption cylinder B which are connected in parallel.
Further, the air inlet of the adsorption mechanism is also connected with a nitrogen tank for flushing.
Further, the exhaust pipe is communicated with an air inlet of the silencer, and an air outlet of the silencer is communicated with the outside.
Adopt above-mentioned the utility model discloses technical scheme's beneficial effect is:
the utility model adopts the adsorption cylinder A and the adsorption cylinder B to alternately adsorb and desorb; a vacuum pump is arranged, when the machine is started, the vacuum pump is started to pump air in the adsorption mechanism, actual adsorption and desorption operations are carried out, the start of the nitrogen adsorption machine is accelerated, and a stable operation result can be obtained within 5-20 minutes;
and a flushing nitrogen tank is arranged, after the nitrogen is pumped by a vacuum pump, the nitrogen is flushed into the adsorption mechanism, the gas in the adsorption mechanism is replaced and discharged, and then actual adsorption and desorption operations are performed, so that the starting time is further shortened, and a stable operation result can be obtained within 5-10 minutes.
Drawings
FIG. 1 is a schematic view of the structure of a rapid start pressure swing adsorption nitrogen machine of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the utility model provides a quick start-up type pressure swing adsorption nitrogen gas machine, including adsorption apparatus structure, nitrogen gas groove, air introduction and purifier, the air introduction communicates with purifier, air groove, adsorption apparatus structure and nitrogen gas groove in proper order, the air inlet of air groove intercommunication adsorption apparatus structure bottom, the gas outlet at nitrogen gas groove intercommunication adsorption apparatus structure top, the adsorption apparatus structure lower extreme still sets up the gas vent, this gas vent intercommunication vacuum pump to communicate with the external world through the blast pipe for the evacuation desorption.
The working principle of the embodiment is as follows: when the adsorption device is started, the vacuum pump is started to pump away and discharge a large amount of air in the adsorption cylinder, particularly air in the carbon molecular sieve, then actual adsorption operation is carried out, the air sequentially passes through the air introducing and purifying device and the air groove for buffering, then enters the adsorption mechanism, the carbon molecular sieve adsorbs oxygen molecules, and nitrogen molecules enter the nitrogen tank after passing through the nitrogen groove; after adsorbing for a period of time, the carbon molecular sieve is saturated, decompression, exhaust and desorption are started, and gas in the adsorption mechanism is discharged through the exhaust pipe, so that the purpose of decompression and desorption is achieved.
Air introduction and purifier are including air introduction device and the purifier that the intercommunication set up, air introduction device is the compressor, and the compressor is with air introduction absorption nitrogen machine, purifier is including the absorption formula desiccator, filter and the active carbon adsorption jar that connect gradually for get rid of oil, water and the dust in the compressed air, protection molecular sieve, in order to avoid polluting the molecular sieve.
The adsorption mechanism comprises an adsorption cylinder A and an adsorption cylinder B which are connected in parallel, and the two adsorption cylinders alternately adsorb and desorb so as to realize continuous gas supply.
The air inlet of the adsorption mechanism is also connected with a nitrogen tank for flushing, after the suction of the vacuum pump is finished, the nitrogen in the nitrogen tank for flushing is utilized to replace and discharge the gas in the adsorption cylinder, particularly the gas in the carbon molecular sieve, and then the actual adsorption and desorption operations are carried out.
The exhaust pipe is communicated with the air inlet of the silencer, the air outlet of the silencer is communicated with the outside, and released air is discharged through the silencer when desorption and exhaust are carried out, so that disturbing noise is avoided.
To sum up, the utility model adopts the adsorption cylinder A and the adsorption cylinder B to alternately adsorb and desorb; a vacuum pump is arranged, when the machine is started, the vacuum pump is started to pump air in the adsorption mechanism, actual adsorption and desorption operations are carried out, the start of the nitrogen adsorption machine is accelerated, and a stable operation result can be obtained within 5-20 minutes; and a flushing nitrogen tank is arranged, after the nitrogen is pumped by a vacuum pump, the nitrogen is flushed into the adsorption mechanism, the gas in the adsorption mechanism is replaced and discharged, and then actual adsorption and desorption operations are performed, so that the starting time is further shortened, and a stable operation result can be obtained within 5-10 minutes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a quick start type pressure swing adsorption nitrogen machine, its characterized in that, including adsorption apparatus structure, nitrogen gas groove, air introduction and purifier, the air introduction communicates with purifier, air groove, adsorption apparatus structure and nitrogen gas groove in proper order, the air inlet of air groove intercommunication adsorption apparatus structure bottom, the gas outlet at nitrogen gas groove intercommunication adsorption apparatus structure top, the adsorption apparatus structure lower extreme still sets up the gas vent, this gas vent intercommunication vacuum pump to communicate with the external world through the blast pipe for the evacuation desorption.
2. The rapid start-up pressure swing adsorption nitrogen machine of claim 1, wherein the air introduction and purification device comprises an air introduction device and a purification device which are arranged in communication, the air introduction device is a compressor, and the purification device comprises an adsorption dryer, a filter and an activated carbon adsorption tank which are connected in sequence for removing oil, water and dust in the compressed air.
3. The rapid start pressure swing adsorption nitrogen machine of claim 1, where the adsorption mechanism comprises adsorption cartridge a and adsorption cartridge B connected in parallel.
4. The rapid start pressure swing adsorption nitrogen machine of claim 1, wherein the inlet of the adsorption mechanism is further connected to a nitrogen purge tank.
5. The rapid start-up pressure swing adsorption nitrogen machine of claim 1, wherein the exhaust pipe communicates with an inlet of a muffler, and an outlet of the muffler communicates with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655090.6U CN210030056U (en) | 2019-05-09 | 2019-05-09 | Quick start type pressure swing adsorption nitrogen machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655090.6U CN210030056U (en) | 2019-05-09 | 2019-05-09 | Quick start type pressure swing adsorption nitrogen machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210030056U true CN210030056U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920655090.6U Active CN210030056U (en) | 2019-05-09 | 2019-05-09 | Quick start type pressure swing adsorption nitrogen machine |
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| CN (1) | CN210030056U (en) |
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- 2019-05-09 CN CN201920655090.6U patent/CN210030056U/en active Active
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