CN2470339Y - Apparatus for making high-purity nitrogen using pressure-changing adsorption principle - Google Patents
Apparatus for making high-purity nitrogen using pressure-changing adsorption principle Download PDFInfo
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- CN2470339Y CN2470339Y CN 01204480 CN01204480U CN2470339Y CN 2470339 Y CN2470339 Y CN 2470339Y CN 01204480 CN01204480 CN 01204480 CN 01204480 U CN01204480 U CN 01204480U CN 2470339 Y CN2470339 Y CN 2470339Y
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Abstract
The utility model discloses a device for producing high-purity nitrogen by a pressure-swing absorption principle, comprising two packing towers filled with sorbent. A gas inlet pipe, a gas production pipe, a gas discharge pipe, an upper gas fixing pipe, a middle gas fixing pipe and a lower gas fixing pipe are arranged between the two packing towers. The gas components, pressure and flow quantity in the packing towers are controlled by a pneumatic disconnecting valve and a manual control valve arranged on each pipe, thereby the nitrogen with purity high in PPM level can be directly produced, and the gas consumption is lowered and the electricity consumption is reduced in the process of high-purity nitrogen production.
Description
The utility model relates to a kind of device of producing high-purity nitrogen, more particularly, relates to a kind of device that utilizes the transformation absorption principle to produce high-purity nitrogen.
The legacy equipment that utilizes the transformation absorption principle to produce nitrogen from air is to adopt two packing tower structures, utilizes one group of admission passage, aerogenesis pipeline and blowdown piping that respectively carries valve to control gaseous tension in two packing towers between two packing towers.At first the gas after the control compression enters in the packing tower, process is boosted and two kinds of processes of step-down in packing tower, oxygen in the adsorbents adsorb pressurized air when boosting in the packing tower, the nitrogen in the pressurized air then becomes product gas and exports from the aerogenesis pipeline; Come out by the adsorbed oxygen of sorbent material is resolved in the packing tower during step-down, and from blowdown piping, discharge.By being located at the valve on each pipeline, make wherein a packing tower boost absorption and when producing nitrogen, another packing tower is in step-down parsing and deflated state, waits the pending absorption of boosting next time.Circulation so again and again, thus nitrogen constantly produced.
In the process of above-mentioned generation nitrogen, because gaseous tension, flow and gaseous fraction are all constantly changing, thereby will be restricted when causing using legacy equipment production of high purity in next life nitrogen, simultaneously because of accurately component, pressure and the flow of pilot-gas, thereby the efficient that causes producing nitrogen reduces, and consumes higher energy.
For solving above-mentioned existing deficiency, the purpose of this utility model is to be to provide a kind of component of pilot-gas effectively, pressure and flow, thereby utilizes the transformation absorption principle to produce the device of high-purity nitrogen.
But another purpose of the present utility model is to provide a kind of direct production to go out the nitrogen of PPM grade high-purity, and can enhance productivity, the quick device of aerogenesis.
In order to solve above-mentioned purpose, the device that utilizes the transformation absorption principle to produce high-purity nitrogen in the utility model mainly is set up in parallel by two, inside is filled the packing tower of sorbent material and is formed.Two packing towers by admission passage, blowdown piping, aerogenesis pipeline, on collaborate pipeline, the pipeline of collaborating connects down, and is positioned at the two ends of above-mentioned pipeline.Admission passage, blowdown piping and aerogenesis pipeline all have three connectivity ports, and wherein two ports are connected to the end opening of two packing towers or suitable for reading, and the another port is connected with separately peripherals by a manual flowrate control valve; On collaborate pipeline and under the pipeline of collaborating two ports are respectively arranged, also be connected with the suitable for reading and end opening of two packing towers respectively.Simultaneously, in described each pipeline, be equipped with control valve separately, controlling gaseous tension, flow and the component in two packing towers, and can between two packing towers, change.
For the purity of the gas producing efficiency and the nitrogen that produces that further improve this device, the pipeline of collaborating in is set up at the middle part that is preferably in above-mentioned two packing towers, and at the last pipeline of collaborating, down collaborate pipeline and in collaborate and set up a manual flowrate control valve in the pipeline.
The value difference that in packing tower, is adsorbed according to oxygen, preferably will in the following bottom that the port of pipeline is located at packing tower of collaborating be starting point, in 2/5 position of the total length of packing tower.
In addition, the manual flow valve place in the aerogenesis pipeline is parallel with the bypass of being made up of a check valve and a manual flowrate control valve.
In addition, described control valve can be a pneumatic stopping valve; And manually flowrate control valve can be a ball valve, also can be butterfly valve or needle type valve.
The device that utilizes absorption principle to produce nitrogen in the utility model is to realize its production nitrogen like this, the at first admission passage and the aerogenesis pipeline at one of them packing tower of conducting (A) two ends, pressurized air is input in this packing tower (A), when pressurized air is flowed through sorbent material, under the effect of pressure, the oxygen in the pressurized air is adsorbed; The nitrogen that is not adsorbed then enters into the aerogenesis pipeline, thereby finishes adsorption separation process.The blowdown piping of another packing tower this moment (B) is in conducting state, the gas in the emptying packing tower (B).Behind certain hour, when the adsorptive capacity of packing tower (A) internal adsorption agent is about to reach capacity, make the pneumatic stopping valve door in all pipelines be in closing condition.Pressure in packing tower this moment (A) is higher, and the pressure in another packing tower (B) is lower.In order to improve the rate of recovery of gas, reduce gas consumption, then collaborate in the conducting successively pipeline, in collaborate pipeline and under the pipeline of collaborating, gas transmission in the packing tower that pressure is higher (A) is in the lower packing tower (B) of low pressure, and component, pressure and flow by the lower interior gas of packing tower (B) of manual flowrate control valve control pressure.After finishing the gaseous tension conversion, the admission passage of conducting packing tower (B) and aerogenesis pipeline, (B) boosts to packing tower, and pressurized air is carried out fractionation by adsorption.The blowdown piping of packing tower (A) is switched on simultaneously, carries out the gas that step-down is resolved and emptying packing tower (A) is interior.Treat packing tower (B) behind certain hour, when the adsorptive capacity of its inner sorbent material is about to supersaturation, make the pneumatic stopping valve in all pipelines be in closing condition.Collaborate in the conducting successively again pipeline, in collaborate pipeline and under the pipeline of collaborating, the gas transmission in the packing tower that pressure is higher (B) in the lower packing tower (A) of pressure, thereby finish a circulation.So move in circles, will continuously produce nitrogen.
Because the air admission after the compression is to do pedesis under pressure when combining with sorbent material to packing tower is interior, thereby make little and movable violent molecule of molecule such as oxygen molecule be inhaled into sorbent material inside, and molecule is big, the molecule of motility difference such as the slit that nitrogen just passes sorbent material finally become product gas.This certainly will form the purity gradient that gaseous fraction does not wait in packing tower, promptly many at packing tower bottom oxygen content, more up oxygen content is few more; According to the oxygen content at the just essential control of the requirement of product gas top, so the device that this reality produced high-purity nitrogen in novel has additional the pipeline of collaborating at the packing tower middle part, and increase has a manual flowrate control valve in each pipeline.Pipeline enters gaseous fraction and the flow in the low pressure packing tower thereby collaborate in flow, the especially upper, middle and lower that can control gas in each pipeline according to the purity requirement of product, and then improves the purity of product gas, and can reach the PPM level.Reduce the consumption of gas simultaneously, thereby reduced the consumption of energy, improved the utilization ratio of sorbent material.
Below in conjunction with accompanying drawing the most preferred embodiment in the utility model is described in further detail.
Fig. 1 utilizes the transformation absorption principle to produce the structural representation of the device of high-purity nitrogen in the utility model;
Fig. 2 is the interface position synoptic diagram of a packing tower and each pipeline in the utility model.
As depicted in figs. 1 and 2, the device that utilizes the transformation absorption principle to produce high-purity nitrogen in the utility model mainly contains two the packing tower A and the B that are set up in parallel, all fills specific sorbent material in these two packing tower A and the B.Between the end opening 3 of these two packing tower A and B bottom, be connected by an admission passage 1, a blowdown piping 2 and the pipeline 9 of once collaborating, wherein admission passage 1 and blowdown piping 2 are equipped with two pneumatic stopping valves 12 between two packing tower A and B, and between two pneumatic stopping valves 12, admission passage 1 all extends an airway that links to each other with peripherals separately with blowdown piping 2, and is provided with a ball valve 13 on air guide pipeline separately; Under collaborate and be provided with a pneumatic stopping valve 12 and a ball valve 13 on the pipeline 9.
Two packing tower A and B top suitable for reading 5 between be connected by the pipeline 7 of collaborating on an aerogenesis pipeline 6 and, wherein main air pipe 6 and admission passage 1, blowdown piping 2 are similar, it also is provided with two pneumatic stopping valves 12 at the pipeline middle part, and between this two pneumatic stopping valve 12, extend an airway that links to each other with peripherals, and on this airway, be provided with a ball valve 13, be parallel with a bypass of forming by one-way control valve 15 and ball valve 14 simultaneously at these ball valve 13 places; And on collaborate pipeline 7 under the pipeline 9 of collaborating similar, on its pipeline, be provided with a pneumatic stopping valve 12 and a ball valve 13.
The middle part of two packing tower A and B is provided with the pipeline 8 of collaborating in, should in the collaborate two ends of pipeline 8 be connected with the outlet 4 that two packing tower A and B establish from 2/5 (as shown in Figure 2) place of bottom total length, and be provided with a pneumatic stopping valve 12 and a ball valve 13 in the pipeline 8 of in this, collaborating.
When producing high-purity nitrogen, at first the admission passage 1 of a packing tower A of conducting and aerogenesis pipeline 6 will be input to packing tower A through the air of overdraft, under pressure, it is adsorbed to make oxygen in the pressurized air be adsorbed agent, and what be not adsorbed then enters into aerogenesis pipeline 6.At this moment, the gas in the blowdown piping 2 of another packing tower of conducting B, emptying packing tower B.Behind certain hour, when the adsorptive capacity of packing tower A internal adsorption agent is about to reach capacity, make the pneumatic stopping valve 12 in all pipelines be in closing condition.At this moment, pressure in the packing tower B is low, pressure height in another packing tower A, in order to improve the rate of recovery of gas, reduce gas consumption, collaborate in the conducting successively pipeline 7, in collaborate pipeline 8 and under the pipeline 9 of collaborating, the gas transmission in the packing tower A that pressure is higher and flows to gaseous fraction, pressure and flow among the packing tower B by ball valve 13 control packing tower A in the lower packing tower B of pressure.After finishing the gaseous tension conversion, the pass close the pipeline 7 of collaborating, in collaborate pneumatic stopping valve 12 in the pipeline 8 and the pipeline 9 of collaborating down, the admission passage 1 of conducting packing tower B and aerogenesis pipeline 6 again, B boosts to packing tower, the blowdown piping 2 of packing tower A is switched on simultaneously, carries out the gas in step-down and the emptying packing tower A.After treating for some time, when the adsorptive capacity of the sorbent material in the packing tower B is about to arrive when saturated, make the pneumatic stopping valve 12 in all pipelines be in closing condition, collaborate in the conducting successively again pipeline 7, in collaborate pipeline 8 and under the pipeline 9 of collaborating, gas transmission in the packing tower B that pressure is higher is arrived in the lower packing tower A of pressure, thereby finishes a circulation.So move in circles, will continuously produce nitrogen.
Claims (7)
1. device that utilizes the transformation absorption principle to produce high-purity nitrogen, mainly include two that be set up in parallel and within it portion fill the packing tower of sorbent material, between two packing towers, be connected by admission passage, blowdown piping, the aerogenesis pipeline that is provided with valve, described pipeline also is extended with a vent line that is connected with peripherals at pipeline middle part, it is characterized in that: the upper and lower of two packing towers respectively by on collaborate pipeline and the pipeline of collaborating down be communicated with once more, and last collaborate pipeline and under the pipeline centre of collaborating be provided with control valve.
2. according to the device of producing high-purity nitrogen described in the claim 1, it is characterized in that: described two packing towers arranged side by side middle part be provided with one be communicated with described packing tower in the pipeline of collaborating, and the pipeline of collaborating in this is provided with control valve.
3. according to the device of producing high-purity nitrogen described in claim 1 or 2, it is characterized in that: described control valve is a pneumatic stopping valve.
4. according to the device of producing high-purity nitrogen described in the claim 2, it is characterized in that: the pipeline of collaborating in described is positioned at two packing towers from the bottom up, 2/5 position of its total length.
5. according to the device of producing high-purity nitrogen described in the claim 1, it is characterized in that: be parallel with the bypass of forming by a check valve and a manual flowrate control valve on the air guide pipeline of described aerogenesis pipeline.
6. according to the device of producing high-purity nitrogen described in claim 1 or 2, it is characterized in that: the pipeline of collaborating on described, in collaborate pipeline and the pipeline of collaborating down in the middle of its pipeline separately, have additional a manual flowrate control valve.
7. according to the device of producing high-purity nitrogen described in the claim 6, it is characterized in that: described manual flowrate control valve is ball valve, butterfly valve or needle type valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204480 CN2470339Y (en) | 2001-02-27 | 2001-02-27 | Apparatus for making high-purity nitrogen using pressure-changing adsorption principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204480 CN2470339Y (en) | 2001-02-27 | 2001-02-27 | Apparatus for making high-purity nitrogen using pressure-changing adsorption principle |
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| Publication Number | Publication Date |
|---|---|
| CN2470339Y true CN2470339Y (en) | 2002-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01204480 Expired - Fee Related CN2470339Y (en) | 2001-02-27 | 2001-02-27 | Apparatus for making high-purity nitrogen using pressure-changing adsorption principle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601159A (en) * | 2013-11-25 | 2014-02-26 | 广东太安伊侨气体设备有限公司 | TQN full-automatic quantity-controlled energy-saving nitrogen machine |
| CN110237651A (en) * | 2019-07-11 | 2019-09-17 | 南京赛虎工业设备有限公司 | A kind of air separation by PSA nitrogen-making device and method |
| CN115608105A (en) * | 2022-11-08 | 2023-01-17 | 山东佳脉气体工程有限公司 | Variable-path step-by-step pressure-equalizing pressure swing adsorption gas separation method and device |
-
2001
- 2001-02-27 CN CN 01204480 patent/CN2470339Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601159A (en) * | 2013-11-25 | 2014-02-26 | 广东太安伊侨气体设备有限公司 | TQN full-automatic quantity-controlled energy-saving nitrogen machine |
| CN103601159B (en) * | 2013-11-25 | 2016-06-08 | 广东太安伊侨气体设备有限公司 | TQN automatically measures the energy-conservation nitrogen machine of control |
| CN110237651A (en) * | 2019-07-11 | 2019-09-17 | 南京赛虎工业设备有限公司 | A kind of air separation by PSA nitrogen-making device and method |
| CN115608105A (en) * | 2022-11-08 | 2023-01-17 | 山东佳脉气体工程有限公司 | Variable-path step-by-step pressure-equalizing pressure swing adsorption gas separation method and device |
| CN115608105B (en) * | 2022-11-08 | 2023-03-14 | 山东佳脉气体工程有限公司 | Variable-path step-by-step pressure-equalizing pressure swing adsorption gas separation method and device |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |