CN209306950U - A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen - Google Patents

A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen Download PDF

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Publication number
CN209306950U
CN209306950U CN201821362409.8U CN201821362409U CN209306950U CN 209306950 U CN209306950 U CN 209306950U CN 201821362409 U CN201821362409 U CN 201821362409U CN 209306950 U CN209306950 U CN 209306950U
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adsorption tower
tower
adsorption
nitrogen
line
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王涛
孟巧玲
孔令猛
郑富林
赵杰
董玉欣
李建奎
黄涛
王家步
申明乾
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Shandong Kerui oil and gas equipment Co.,Ltd.
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HENGYE PETROLEUM NEW TECHNOLOGY APPLICATION Co Ltd SHANDONG
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Abstract

The utility model discloses a kind of novel energy-saving high-efficiency type PSA equipments of making nitrogen, including two adsorption tower modules parallel with one another, each adsorption tower module includes four adsorption towers parallel with one another, respectively the first adsorption tower, second adsorption tower, third adsorption tower and the 4th adsorption tower, first adsorption tower, second adsorption tower, the top exit of third adsorption tower and the 4th adsorption tower is linked together by top balance pipe line, first adsorption tower, second adsorption tower, the outlet at bottom of third adsorption tower and the 4th adsorption tower is linked together by lower part balance pipe line, first adsorption tower, second adsorption tower, the bottom of third adsorption tower and the 4th adsorption tower passes through exhaust line respectively and connect with silencer, first adsorption tower, second adsorption tower, the bottom of third adsorption tower and the 4th adsorption tower passes through clean-up line respectively and connect with exhaust line.The utility model reduces high pressure PSA equipment of making nitrogen energy consumption by the extra tolerance released by repeatedly pushing back receipts, while reducing production cost.

Description

A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen
Technical field
The present invention relates to a kind of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICEs, and in particular to a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen.
Background technique
Currently, there are mainly two types of the THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICEs used in the industry, one kind is for adsorptive pressure The 1.0MPa conventional low voltage equipment of making nitrogen below, another kind are the neoteric high pressure PSA equipment of making nitrogen, and adsorptive pressure is more than 1.4MPa.
(1) energy consumption of high pressure PSA technology used in current high pressure PSA device is relative to the conventional PSA equipment of making nitrogen For, due to the use of High Pressure Air Compressor, the compressed gas of same tolerance is generated, the pressure of compressed gas is higher to generate identical gas It is higher to measure the energy consumption to be consumed, and the high pressure technique used in high pressure PSA nitrogen technology is a technology of pressure equalization, once Pressure when equipment high pressure gas being caused to desorb after pressing is higher, in the air capacity that desorption phase is discharged with regard to opposite higher, institute Higher with the energy consumption that this has resulted in the high pressure PSA equipment of making nitrogen, energy consumption height means that deficiency in economic performance, can be to high pressure PSA Further development causes certain obstruction.
(2) successful high pressure PSA technology has been researched and developed, high pressure compressed gas, high pressure are generated using High-Pressure Compressor Compression pressure is 20.0bar (a), by air treatment system, buffer system, process pipe and decompression and pressure recovery After technology, the adsorptive pressure in adsorption tower is 14.0 ~ 18.0bar (a), and adsorptive pressure will receive high pressure nitrogen compression simultaneously The influence of machine cooperation.
(3) after absorption is completed, the high pressure PSA equipment of making nitrogen will do it pressure process, high pressure PSA nitrogen technology and press through A technology of pressure equalization is used in journey, is once pressed by the progress of two adjacent adsorption towers, is divided at all according to purity requirement Pressure, in pressure and lower press.
(4) it carries out after pressing, 7.0 ~ 9.0bar of desorption pressures (a) of the high pressure PSA of desorber, and conventional low voltage PSA 3.0 ~ 5.0bar of adsorptive pressure (a) of equipment, high pressure PSA compare conventional low voltage PSA, every time in desorption process there is over 82% tolerance is released, and causes the waste of tolerance.
(5) due to the limitation of skid structure, the ratio of height to diameter of adsorption tower can not accomplish the length being more suitable, generally according to sled The size of body limits, and the ratio of height to diameter of adsorption tower is controlled 2.5 or so.
In summary situation, high pressure PSA nitrogen technology causes certain waste to high pressure gas at present, is particularly solving During suction, a large amount of high pressure gas direct emission meeting air capacity causes very big loss, makes to the development of high pressure PSA technology At certain influence.
Summary of the invention
The purpose of the present invention is to defect of the existing technology, provide it is a kind of structurally reasonable, by repeatedly pressing Recycling reduces high pressure PSA equipment of making nitrogen energy consumption by the extra tolerance released, while reducing the novel energy-saving high-efficiency of production cost The type PSA equipment of making nitrogen.
The technical scheme is that a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen, including two suctions parallel with one another The top nitrogen outlet of attached tower module, each adsorption tower module is connect by pipeline with nitrogen storage tank, each adsorption tower module Bottom inlet is connect by pipeline with compressed air reservoir, and each adsorption tower module includes four adsorption towers parallel with one another, point Not Wei the first adsorption tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower, first adsorption tower, the second adsorption tower, The top exit of three adsorption towers and the 4th adsorption tower is linked together by top balance pipe line, first adsorption tower, second The outlet at bottom of adsorption tower, third adsorption tower and the 4th adsorption tower is linked together by lower part balance pipe line, and described first inhales Attached tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower bottom pass through exhaust line respectively and connect with silencer, it is described First adsorption tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower bottom pass through clean-up line and exhaust line respectively Connection.
Preferably, the top nitrogen outlet of first adsorption tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower It is connect respectively by nitrogen pipeline with nitrogen storage tank, first adsorption tower, the second adsorption tower, third adsorption tower and the 4th absorption The bottom inlet of tower is connect by compressed-air line with compressed air reservoir.
Preferably, the nitrogen tube at the top of first adsorption tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower Valve, first adsorption tower, the second adsorption tower, third adsorption tower and the 4th absorption are respectively equipped on line, top balance pipe line Valve is respectively equipped on the compressed-air line of tower bottom, lower part balance pipe line, exhaust line and clean-up line.
The present invention compared with prior art, has the advantage that by the way that intermediate pressure tower is added, can return to pressure It receives, by multiple equal pressure drop low-pressure, is recycled with this by the extra tolerance released, prevent tolerance from wasting, to reduce sky Press using number of units or reduce air compressor machine rated power, be finally reached reduce the high pressure PSA equipment of making nitrogen energy consumption, reduce Production cost.
Detailed description of the invention
Fig. 1 is working state schematic representation of the invention;
In figure: 1, the first adsorption tower, the 2, second adsorption tower, 3, third adsorption tower, the 4, the 4th adsorption tower;
5,6, adsorption tower module, 7, nitrogen storage tank, 8, compressed air reservoir, 9, top balance pipe line, 10, lower part balance pipe Line, 11, exhaust line, 12, silencer, 13, clean-up line, 14, nitrogen pipeline, 15, compressed-air line.
Specific embodiment
Here is that the present invention is further described in conjunction with the accompanying drawings and embodiments.
Referring to Fig.1, a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen, including two adsorption tower modules 5 parallel with one another, 6, the top nitrogen outlet of each adsorption tower module is connect by pipeline with nitrogen storage tank 7.Adsorption tower module 5,6 is mutual simultaneously in this way Connection, meanwhile, when adsorption tower module 5 starts absorption after a certain period of time, adsorption tower module 6 is adsorbed, and adsorption tower module 5,6 is made to exist Start to overlap when absorption, can guarantee the state that at least 2-3 adsorption tower is in while adsorbing in this way, mention to greatest extent Rise working efficiency.
Wherein, the bottom inlet of each adsorption tower module is connect by pipeline with compressed air reservoir 8, each adsorption tower mould Block includes four adsorption towers parallel with one another, and respectively the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th inhale Attached tower 4, the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 top exit pressed by top Pipeline 9 links together, and the first adsorption tower 1, the second adsorption tower 2, the outlet at bottom of third adsorption tower 3 and the 4th adsorption tower 4 are logical It crosses lower part balance pipe line 10 to link together, in this way when two of them adsorption tower needs primary or secondary pressure, passes through top Balance pipe line 9 and lower part balance pipe line 10 can the position up and down to adsorption tower carry out simultaneously, rate can not only be improved in this way, and And equalizing effect is ideal.First adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 bottom pass through respectively Exhaust line 11 is connect with silencer 12, after each adsorption tower is secondary presses, when carrying out inverse put desorption, passes through exhaust line 11 discharges, each adsorption tower complete absorption, one down, along put, two down, inverse put, flushing, two rise, one are followed after liter Ring repeats;In addition, the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 bottom lead to respectively It crosses clean-up line 13 to connect with exhaust line 11, after each adsorption tower is once pressed, puts movement to other adsorption towers by suitable It is rinsed movement, the gas of flushing process injection is by clean-up line 13 into exhaust line 11 and eventually by silencer 12 It is discharged after noise elimination processing.
Wherein, one down is that the pressure in a pressure equalizing declines process;Along the exhaust process after putting as one down; Two down is that the pressure in secondary pressure equalizing declines process;Inverse put is desorption exhaust process;Rinsing is the suitable of other adsorption towers Put exhaust process;Two, which are upgraded to the secondary pressure of other adsorption towers, presses the boost process of generation with it;One is upgraded to other absorption Tower once presses and presses the boost process of generation with it.
In addition, the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the primary of the 4th adsorption tower 4 press, are secondary Pressure and suitable put is completed by top balance pipe line 9 and lower part balance pipe line 10, and the valve for controlling different adsorption towers is passed through Door, to realize the movement between different adsorption towers.
The top nitrogen outlet of above-mentioned the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 It is connect respectively by nitrogen pipeline 14 with nitrogen storage tank 7, the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th inhale The bottom inlet of attached tower 4 is connect by compressed-air line 15 with compressed air reservoir 8.
The first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the nitrogen pipeline 14 at the top of the 4th adsorption tower 4, on Valve, the first adsorption tower 1, the second adsorption tower 2,4 bottom of third adsorption tower 3 and the 4th adsorption tower are respectively equipped on portion's balance pipe line 9 Valve is respectively equipped on the compressed-air line 15 in portion, lower part balance pipe line 10, exhaust line 11 and clean-up line 13.Pass through valve The control of door, may be implemented the connection acted between different adsorption towers and cut-off, with moving for time where each adsorption tower of correspondence Make.
The working principle of adsorption tower module 5:
Firstly, the first adsorption tower 1 is adsorbed, the valve of the first adsorption tower 1 and third adsorption tower 3, the first absorption are opened Tower 1 has been adsorbed once press by top balance pipe line 9 and lower part balance pipe line 10 with third adsorption tower 3, at this point, first Adsorption tower 1 carries out one down, and third adsorption tower 3 carries out one rising simultaneously, one rise after third adsorption tower 3 carry out absorption movement; Open the valve on the first adsorption tower 1 and the 4th adsorption tower 4, the first adsorption tower 1 carry out along while putting to the 4th adsorption tower 4 into Row rinses, and gaseous impurity of flushing etc. is discharged by exhaust line 11;Open the valve of the first adsorption tower 1 and the 4th adsorption tower 4 Carry out it is secondary press, the two down of the first adsorption tower 1 is corresponding with the movement that the two of the 4th adsorption tower 4 rises.
First adsorption tower 1 starts absorption after a certain period of time, and the second adsorption tower 2 starts to adsorb, the absorption of the second adsorption tower 2 Journey overlaps with the first adsorption tower 1;The valve for opening the second adsorption tower 2 and the 4th adsorption tower 4 makes its connection, and second inhales Attached tower 2 once press with the 4th adsorption tower 4, and at this moment, when the second 2 one down of adsorption tower, the 4th adsorption tower 4 carries out one simultaneously Rise, one rise after the 4th adsorption tower 4 carry out absorption movement;The valve for opening the second adsorption tower 2 and the first adsorption tower 1, makes it Connection, at this moment the second adsorption tower 2 is carried out along putting while being rinsed to the first adsorption tower 1;Along open after putting the second adsorption tower 2 with The valve of first adsorption tower 1, makes its connection, at this moment, the second adsorption tower 2 and the first adsorption tower 1 carry out it is secondary press, the second absorption The two down of tower 2 rises corresponding with the two of the first adsorption tower 1.
The valve of third adsorption tower 3 and the first adsorption tower 1 is opened, third adsorption tower 3 has been adsorbed to carry out with the first adsorption tower 1 Once press, third adsorption tower 3 carries out one down, and the first adsorption tower 1 carries out one simultaneously and rises, one rise after the first adsorption tower 1 Carry out duplicate absorption actuation cycle;It carries out opening the valve of third adsorption tower 3 and the second adsorption tower 2 along putting after once pressing, The suitable of third adsorption tower 3 is put while being rinsed for the second adsorption tower 2;Then, third adsorption tower 3 and the second adsorption tower 2 two times It presses, the two down of third adsorption tower 3 rises corresponding with the two of the second adsorption tower 2.
4th adsorption tower 4, which has been adsorbed, once press with the second adsorption tower 2, and when the 4th 4 one down of adsorption tower, second inhales Attached tower 2 carries out one simultaneously and rises, one rise after the second adsorption tower 2 carry out absorption movement;It is carried out after the primary pressure of 4th adsorption tower 4 Along putting, the 4th adsorption tower 4 is rinsed simultaneously along putting for third adsorption tower 3, the 4th adsorption tower 4 and third adsorption tower 3 two times It presses, the two down of the 4th adsorption tower 4 rises corresponding, i.e. the 4th adsorption tower 4 and third adsorption tower with the two of third adsorption tower 3 3 progress are secondary to press, and the two down of the 4th adsorption tower 4 rises with the two of third adsorption tower 3 and carries out simultaneously.
First adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 carry out inverse put after two down Desorption, the production procedure of an adsorption tower group module can be completed in this way, in the process, have within the same period 1 or Being 2 adsorption towers is carrying out adsorption process, remaining adsorption tower pressed in section at the same time, along put, inverse put etc. flows Journey;And by repeatedly being pressed with the progress of multiple adsorption towers, on the one hand extra gas can be recycled, be avoided waste, separately On the one hand can reduce air compressor machine using number of units or reduce air compressor machine rated power, be finally reached reduce high pressure PSA system The energy consumption of nitrogen equipment reduces production cost.
In addition, the absorption action part overlapping of the first adsorption tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower is in Arranged in step shape.And first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 are parallel with one another, and first Adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 upper and lower part be connected separately with top balance pipe Line and lower part balance pipe line.
By the equalizing valve of 4 tower modules i.e. the first adsorption tower 1, the second adsorption tower 2, third adsorption tower 3 and the 4th adsorption tower 4 with Balance pipe, which converges, to be shared, and is pressed so that can arbitrarily carry out once pressing two-by-two between 4 adsorption towers with secondary.Specific mode be In 4 tower modules, two towers are pressed first, then with another tower carry out it is secondary press, finally make in adsorption tower dead space Nitrogen and the nitrogen remained in inside molecular sieve are pushed back receipts as far as possible, and the dosage of compressed gas is reduced with this, is reached Energy-saving effect.
Wherein, the one down of above-mentioned each adsorption tower, along putting, two down, inverse put, flushing, two rise and one rises The distribution of actuation time equalization, and one down, along put, the time of two down, inverse put and flushing it is equal with adsorption time.
Adsorption tower module 6 starts absorption after a certain period of time in the first adsorption tower 1 of adsorption tower module 5, beginning son's wife, and two The beginning adsorption time of adsorption tower module 5,6 partly overlaps.Based on 8 tower structures of skid, it is divided into two modules of 4+4, The distribution of further progress absorbing process on this basis guarantees to have 3 or 4 adsorption towers is being inhaled within the same time Attached process, avoids the occurrence of while the adsorption tower adsorbed only has 1 or 0 adsorption tower.Eight groups of number A/B/C/D/E/F/G/H, N For the tower number of absorption simultaneously, specific process flow arrangement mode be see the table below:
As seen from the above table, while the tower of absorption is at least 3, is able to achieve multiple adsorption towers while being adsorbed, improves work While making efficiency, the loss of tolerance can be prevented.
When specifically used, according to the time for adjusting absorption, each process such as pressure, it is same to can according to need control adsorption tower The adsorption tower quantity and workflow of Shi Jinhang absorption.
The present invention is not limited to above-mentioned embodiments, within the knowledge of those skilled in the art, may be used also To make a variety of changes without departing from the purpose of the present invention, the content after variation still falls within protection scope of the present invention.

Claims (4)

1. a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen, it is characterised in that: including two adsorption tower modules parallel with one another, The top nitrogen outlet of each adsorption tower module is connect by pipeline with nitrogen storage tank, and the bottom inlet of each adsorption tower module is logical It crosses pipeline to connect with compressed air reservoir, each adsorption tower module includes four adsorption towers parallel with one another, and respectively first inhales Attached tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower, first adsorption tower, the second adsorption tower, third adsorption tower and The top exit of 4th adsorption tower is linked together by top balance pipe line, first adsorption tower, the second adsorption tower, third The outlet at bottom of adsorption tower and the 4th adsorption tower is linked together by lower part balance pipe line, and first adsorption tower, second inhale The bottom of attached tower, third adsorption tower and the 4th adsorption tower passes through exhaust line respectively and connect with silencer, first adsorption tower, The bottom of second adsorption tower, third adsorption tower and the 4th adsorption tower passes through clean-up line respectively and connect with exhaust line.
2. a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen according to claim 1, it is characterised in that: described first inhales The top nitrogen outlet of attached tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower passes through nitrogen pipeline and nitrogen storage respectively Tank connection.
3. a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen according to claim 2, it is characterised in that: described first inhales Attached tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower bottom inlet pass through compressed-air line and compressed air storage Tank connection.
4. a kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen according to claim 3, it is characterised in that: described first inhales Valve is respectively equipped on nitrogen pipeline, top balance pipe line at the top of attached tower, the second adsorption tower, third adsorption tower and the 4th adsorption tower Door, first adsorption tower, the second adsorption tower, third adsorption tower and the compressed-air line of the 4th absorption tower bottom, lower part are equal Valve is respectively equipped on pressure pipeline, exhaust line and clean-up line.
CN201821362409.8U 2018-08-23 2018-08-23 A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen Active CN209306950U (en)

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CN201821362409.8U CN209306950U (en) 2018-08-23 2018-08-23 A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen

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CN201821362409.8U CN209306950U (en) 2018-08-23 2018-08-23 A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen

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Effective date of registration: 20201209

Address after: 257000 Shengli Industrial Zone, Dongying District, Shandong, Dongying

Patentee after: Shandong Kerui oil and gas equipment Co.,Ltd.

Address before: 257000 No. 1002 Xiliu Road, Dongying District, Dongying City, Shandong Province

Patentee before: SHANDONG HENGYE PETROLEUM NEW TECHNOLOGY APPLICATION Co.,Ltd.