CN202625853U - Nitrogen generating system - Google Patents
Nitrogen generating system Download PDFInfo
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- CN202625853U CN202625853U CN 201220156177 CN201220156177U CN202625853U CN 202625853 U CN202625853 U CN 202625853U CN 201220156177 CN201220156177 CN 201220156177 CN 201220156177 U CN201220156177 U CN 201220156177U CN 202625853 U CN202625853 U CN 202625853U
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- nitrogen
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- storage tank
- air outlet
- monitoring device
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Abstract
The utility model discloses a nitrogen generating system. The nitrogen generating system comprises a nitrogen storage tank. A pure nitrogen outlet is arranged in the nitrogen storage tank, and a pure nitrogen switch valve is arranged on a pipeline at the pure nitrogen outlet. An impure nitrogen outlet is also arranged in the nitrogen storage tank, and an impure nitrogen switch valve is arranged at the impure nitrogen outlet. The nitrogen generating system further comprises a monitoring device used to monitor nitrogen purity inside the nitrogen storage tank, and the nitrogen storage tank is connected with the monitoring device through a sampling nitrogen circuit arranged on the nitrogen storage tank. The nitrogen generating system further comprises a programmable controller, the monitoring device is connected with a signal input end of the programmable controller, and the pure nitrogen switch valve and the impure nitrogen switch valve are connected with corresponding signal output ends of the programmable controller. With the pure nitrogen outlet and the impure nitrogen outlet arranged in the nitrogen storage tank, the programmable controller controls opening and closing of the impure nitrogen switch valve arranged at the impure nitrogen outlet and the pure nitrogen switch valve arranged at the pure nitrogen outlet according to the nitrogen purity inside the nitrogen storage tank monitored by the monitoring device, and discharges nitrogen which is not high in purity, and therefore nitrogen with high purity can be obtained.
Description
Technical field
It is the preparation system of isolating high-purity nitrogen master's the mixed gas from air and so on nitrogen oxygen that the utility model relates to a kind of.
Background technology
Nitrogen gas generating system has been widely used in industry-by-industry at present, and nitrogen gas generating system of the prior art such as Chinese patent notification number are CN101700877A, and the day for announcing is on May 5th, 2010; Name is called in ' a kind of process method for making nitrogen by pressure swing adsorption ' specification sheets and discloses a kind of pressure varying adsorption nitrogen making system; Comprise air compressor machine, the air compressor machine air outlet is connected with air cleaning unit, and air cleaning unit comprises successively main air strainer through pipeline connection, cooling driers, two, three grades of air filters, activated charcoal filter; Air cleaning unit is used to remove impurity such as airborne moisture, dust, greasy dirt; The place, air outlet of air cleaning unit is connected with air accumulator, and the air outlet of air container for storing liquid is communicated with nitrogen oxygen segregation apparatus, and nitrogen oxygen segregation apparatus is made up of two adsorption towers; Be respectively arranged with nitrogen outlet and oxygen outlet on two adsorption towers; Nitrogen outlet on two adsorption towers all is communicated with nitrogen storage tank, and this nitrogen gas generating system is started by MC by remaining part the PLC time variable control except adsorption tower and closes, and has caused the waste level of automation of manpower low; And the nitrogen that purity is not enough still stores in the nitrogen storage tank; The purity drop that causes nitrogen made in one piece, and the nitrogen gas pressure that this system produces is lower, can not be applicable to nitrogen requirement high pressure, highly purified applying working condition.
The utility model content
The purpose of the utility model is to provide a kind of nitrogen gas generating system, to solve the low problem of nitrogen gas purity of making in the prior art.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: a kind of nitrogen gas generating system, comprise nitrogen storage tank, and nitrogen storage tank is provided with and is used for the purity nitrogen air outlet that is connected with user side through pipeline; The pipeline at place, purity nitrogen air outlet is provided with the purity nitrogen switch-valve; Also be provided with on the nitrogen storage tank and be used for the not purity nitrogen air outlet that is communicated with the system extraneous air, place, purity nitrogen air outlet is not provided with not purity nitrogen switch-valve, and this system also comprises the monitoring device that is used to monitor nitrogen gas purity in the nitrogen storage tank; Nitrogen storage tank is communicated with monitoring device through a sampling gas circuit that is provided with on it; This system also comprises programmable logic controller, and monitoring device links to each other with the signal input part of programmable logic controller, the purity nitrogen switch-valve and not the purity nitrogen switch-valve link to each other with the corresponding signal output part of programmable logic controller.
Described purity nitrogen air outlet is used further to be connected with user side after through the pipeline connection supercharging system; Supercharging system links to each other with the corresponding signal output part of programmable logic controller and controls start-stop through programmable logic controller according to nitrogen gas purity, and the place, air outlet of supercharging system is connected with high-purity high pressure nitrogen storage tank through branch line.
A kind of nitrogen gas generating system of the utility model; Not purity nitrogen air outlet that is provided with on the nitrogen storage tank and purity nitrogen air outlet; Programmable logic controller is according to the not purity nitrogen switch-valve at place, purity nitrogen air outlet and the purity nitrogen switch-valve switching at place, purity nitrogen air outlet of the control of purity of nitrogen in the monitoring device monitoring nitrogen storage tank; The nitrogen that purity is not high is discharged, and obtains the higher nitrogen of purity.
Further, the supercharging system of setting can make this system obtain the higher nitrogen of pressure simultaneously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the utility model;
Fig. 2 is the control block diagram of the programmable logic controller among Fig. 1.
Embodiment
A kind of embodiment of nitrogen gas generating system; As shown in Figure 1; Comprise the air compressor machine 1, purification system 2, air accumulator 8, nitrogen oxygen segregation apparatus 3, the nitrogen storage tank 9 that pass through pipeline connection successively; Purification system 2 comprises one-level in-line filter 5, drying machine 6, diode pipe filter 15, triode pipe filter 16, the oil removal filter 7 that passes through pipeline connection successively; Nitrogen oxygen segregation apparatus 3 is combined by two adsorption tower A, B, and nitrogen storage tank 9 is provided with the purity nitrogen air outlet, and the pipeline at place, purity nitrogen air outlet is provided with purity nitrogen switch-valve 11; The purity nitrogen air outlet is connected with user side after through pipeline connection supercharging system 4 again; Place, the air outlet of supercharging system 4 is connected with high-purity high pressure nitrogen storage tank 10 through branch line, and high-purity high pressure nitrogen storage tank is provided with tensimeter 14, also is provided with on the nitrogen storage tank 9 to be used for the not purity nitrogen air outlet that is communicated with the system extraneous air; Place, purity nitrogen air outlet is not provided with not purity nitrogen switch-valve 17; This system also comprises the monitoring device 13 that is used for nitrogen gas purity in the remote monitoring nitrogen storage tank, and nitrogen storage tank 9 is communicated with monitoring device 13 through a sampling gas circuit that is provided with on it, and this system also comprises programmable logic controller 12; Monitoring device 13 links to each other with the signal input part of programmable logic controller 12; Air compressor machine 1, purification system 2, nitrogen oxygen segregation apparatus 3, supercharging system 10, purity nitrogen switch-valve and not the purity nitrogen switch-valve link to each other with corresponding signal output part, Controlled by Programmable Controller air compressor machine start-stop, purification system start-stop, nitrogen oxygen segregation apparatus work, programmable logic controller is according to the nitrogen gas purity control purity nitrogen switch-valve or the start-stop of the switching of purity nitrogen switch-valve and supercharging system not.
The Controlled by Programmable Controller process is as shown in Figure 2, and after high-purity high pressure nitrogen gas generating system started, the programmable logic controller follow procedure started drying machine, behind the delay certain hour (drying machine is stable); Start air compressor machine, air compressor machine begins to provide pressurized air, and pressurized air has been removed impurity such as the moisture in the pressurized air, dust, greasy dirt after refining plant purifies; The pressurized air of crossing after purifying is stored in the air accumulator, and programmable logic controller starts nitrogen oxygen segregation apparatus, and the pressurized air in the air accumulator gets into nitrogen oxygen segregation apparatus, and nitrogen oxygen segregation apparatus has two adsorption towers (A tower and B tower); All loaded novel molecular sieve in each adsorption tower, during nitrogen oxygen segregation apparatus work, A tower and the alternation of B tower; In A tower when work,, the B tower is in reproduced state, when the A tower after hours; Switch to the work of B tower, the regeneration of A tower is during the work of A tower; Molecular sieve in the tower adsorbs oxygen, and remaining nitrogen gets into nitrogen storage tank, after absorption is saturated; Automatically switch to the work of B tower, this moment, the A tower was discharged into the oxygen of absorption outside the system, realized regeneration; B tower principle is identical, and the nitrogen of manufacturing is through the purity of monitoring device monitoring nitrogen, if the nitrogen in the nitrogen storage tank does not reach setting purity; Then Controlled by Programmable Controller not the purity nitrogen switch-valve open impure nitrogen discharge to system outside, when the nitrogen in the nitrogen storage tank reaches when setting purity, Controlled by Programmable Controller not purity nitrogen switch-valve stops externally to discharge nitrogen; And control the purity nitrogen switch-valve and open to supercharging storing unit air feed, programmable logic controller starts supercharger, and nitrogen is stored in after supercharging in high-purity high pressure nitrogen storage tank.
The utility model through Controlled by Programmable Controller air compressor machine start-stop, purification system start-stop, nitrogen oxygen segregation apparatus work and according to nitrogen gas purity control purity nitrogen switch-valve and not the purity nitrogen switch-valve automatically switch and open and close; Realize system's orderly operation automatically, improved the level of automation of whole system greatly.
In other embodiment, place, described purity nitrogen air outlet can also not be communicated with supercharging system, and the purity nitrogen air outlet directly is communicated with user side through pipeline.
In other embodiment, described nitrogen oxygen segregation apparatus can also be combined by one or more adsorption tower.
Claims (2)
1. nitrogen gas generating system; Comprise nitrogen storage tank, nitrogen storage tank is provided with and is used for the purity nitrogen air outlet that is connected with user side through pipeline, and the pipeline at place, purity nitrogen air outlet is provided with the purity nitrogen switch-valve; It is characterized in that; Also be provided with on the nitrogen storage tank and be used for the not purity nitrogen air outlet that is communicated with the system extraneous air, place, purity nitrogen air outlet is not provided with not purity nitrogen switch-valve, and this system also comprises the monitoring device that is used to monitor nitrogen gas purity in the nitrogen storage tank; Nitrogen storage tank is communicated with monitoring device through a sampling gas circuit that is provided with on it; This system also comprises programmable logic controller, and monitoring device links to each other with the signal input part of programmable logic controller, the purity nitrogen switch-valve and not the purity nitrogen switch-valve link to each other with the corresponding signal output part of programmable logic controller.
2. a kind of nitrogen gas generating system according to claim 1; It is characterized in that; Described purity nitrogen air outlet is used further to be connected with user side after through the pipeline connection supercharging system; Supercharging system links to each other with the corresponding signal output part of programmable logic controller and controls start-stop through programmable logic controller according to nitrogen gas purity, and the place, air outlet of supercharging system is connected with high-purity high pressure nitrogen storage tank through branch line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220156177 CN202625853U (en) | 2012-04-13 | 2012-04-13 | Nitrogen generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220156177 CN202625853U (en) | 2012-04-13 | 2012-04-13 | Nitrogen generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202625853U true CN202625853U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220156177 Expired - Lifetime CN202625853U (en) | 2012-04-13 | 2012-04-13 | Nitrogen generating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202625853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803358A (en) * | 2013-07-30 | 2015-07-29 | 深圳市至爱的科技发展有限公司 | Nitrogen-oxygen separation device |
| CN106185845A (en) * | 2016-07-11 | 2016-12-07 | 凯迈（洛阳）气源有限公司 | Nitrogen car processed and the equipment of making nitrogen thereof |
| CN107265413A (en) * | 2017-06-23 | 2017-10-20 | 宝鸡宝石特种车辆有限责任公司 | For improving the system that membrane separator prepares high-purity nitrogen efficiency |
-
2012
- 2012-04-13 CN CN 201220156177 patent/CN202625853U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803358A (en) * | 2013-07-30 | 2015-07-29 | 深圳市至爱的科技发展有限公司 | Nitrogen-oxygen separation device |
| CN106185845A (en) * | 2016-07-11 | 2016-12-07 | 凯迈（洛阳）气源有限公司 | Nitrogen car processed and the equipment of making nitrogen thereof |
| CN107265413A (en) * | 2017-06-23 | 2017-10-20 | 宝鸡宝石特种车辆有限责任公司 | For improving the system that membrane separator prepares high-purity nitrogen efficiency |
| CN107265413B (en) * | 2017-06-23 | 2019-05-10 | 宝鸡宝石特种车辆有限责任公司 | The system for preparing high-purity nitrogen efficiency for improving membrane separator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |