CN215463123U - Novel multi-tower efficient energy-saving PSA gas production system - Google Patents
Novel multi-tower efficient energy-saving PSA gas production system Download PDFInfo
- Publication number
- CN215463123U CN215463123U CN202022939864.3U CN202022939864U CN215463123U CN 215463123 U CN215463123 U CN 215463123U CN 202022939864 U CN202022939864 U CN 202022939864U CN 215463123 U CN215463123 U CN 215463123U
- Authority
- CN
- China
- Prior art keywords
- tower
- adsorption tower
- adsorption
- gas
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims abstract description 100
- 239000007789 gas Substances 0.000 claims abstract description 65
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 230000003584 silencer Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a novel multi-tower high-efficiency energy-saving PSA gas making system, which comprises a filter, an air compressor, a cooler and a plurality of adsorption towers, wherein the filter, the air compressor, the cooler and the adsorption towers are connected in front and back; the other end of each adsorption tower is respectively connected with a throttle valve and the other adsorption tower, the throttle valve is connected with a test module, and the test module is connected with a second computer; the adsorption tower is also connected to the outside through a waste gas outlet pipeline; on the pipeline that cooler and adsorption tower are connected, on the pipeline that adsorption tower and choke valve are connected, on the pipeline of being connected between the adsorption tower, all be provided with the solenoid valve on the waste gas outlet pipeline, the solenoid valve all links to each other with a PLC controller. This system can reduce compressor frequency through setting up many towers, promotes product purity and rate of recovery, and single tower trouble does not influence production and goes on, promotes production efficiency, and is more economical.
Description
Technical Field
The utility model relates to the field of PSA gas making equipment, in particular to a novel multi-tower efficient energy-saving PSA gas making system.
Background
PSA is a process for purifying a gas mixture, which is a reversible physical adsorption process based on the physical adsorption of gas molecules on the internal surface of a porous solid substance (adsorbent) and working between two pressure states, and is based on the principle that the impurity components in the mixed gas have a large adsorption capacity at high pressure and a small adsorption capacity at low pressure, while the ideal component H2 has a small adsorption capacity at both high pressure and low pressure. At high pressure, the impurity partial pressure is increased to adsorb as much as possible onto the adsorbent, thereby achieving high product purity. Desorption or regeneration of the adsorbent is carried out at low pressure to minimize the residual amount of impurities on the adsorbent to facilitate re-adsorption of impurities in the next cycle.
The existing double-tower PSA equipment often has the problems of unstable airflow, large energy consumption and small gas recovery rate in use, and the purity of prepared gas cannot be ensured. Therefore, there is a need for an efficient and energy-efficient multi-column PSA gas generation system.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a novel multi-tower high-efficiency energy-saving PSA gas production system.
The utility model adopts the following technical scheme for solving the technical problems:
the utility model provides a novel multi-tower high-efficiency energy-saving PSA gas making system, which comprises:
the filter, the air compressor and the cooler are connected in front and back and used for filtering, purifying, compressing and cooling air;
an adsorption tower; one end of each adsorption tower is connected with a cooler and is provided with a waste gas outlet pipeline; the number of the adsorption towers is more than 2;
the other end of the adsorption tower is respectively connected with a throttle valve and the other adsorption tower; the throttle valves are all connected with a test module, and the test module is connected with a second computer;
the pipeline that cooler and adsorption tower are connected is last, adsorption tower and throttle valve are connected is last, all be provided with the solenoid valve on the pipeline of connecting between the adsorption tower, on the waste gas outlet pipeline, the solenoid valve all links to each other with a PLC controller.
Further, the test module comprises a one-way valve, an air storage tank, a pressure limiting valve, a flowmeter and a measuring instrument which are sequentially connected.
Further, the measuring instrument is connected with a second computer.
Furthermore, the waste gas outlet pipeline is connected with a silencer, and the silencer is communicated with the outside.
Further, the PLC controller is connected with a second computer.
Further, the gas making system also comprises a pressure transmitter, and the pressure transmitter is connected with all the adsorption towers and is connected with a first computer.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
the novel multi-tower high-efficiency energy-saving PSA gas making system provided by the utility model comprises a plurality of adsorption towers, so that when a single adsorption tower breaks down, the tower can be cut to operate, and the production is continued; by arranging a plurality of adsorption towers, pressure equalization can be carried out for a plurality of times, the loss of effective gas is less, the desorption time of the adsorbent can be adjusted, so that the adsorbent is completely desorbed, and the service life is longer; the multi-tower arrangement can enable the purity and recovery rate of the prepared gas to be higher, and compared with a double-tower operation, the multi-tower gas recovery system is more stable, reduces the power of a compressor and is more economical.
Drawings
FIG. 1 is a schematic diagram of a novel multi-tower energy-efficient PSA gas production system according to an embodiment of the present invention;
wherein: 1-a filter, 2-an air compressor, 3-a cooler, 4-a silencer, 5-an electromagnetic valve, 6-a first adsorption tower, 7-a second adsorption tower, 8-a third adsorption tower, 9-a fourth adsorption tower, 10-a throttle valve, 11-a one-way valve, 12-an air storage tank, 13-a pressure limiting valve, 14-a flow meter, 15-a measuring instrument, 16-a second computer, 17-a PLC (programmable logic controller), 18-a pressure transmitter and 19-a first computer.
Detailed Description
The utility model provides a novel multi-tower high-efficiency energy-saving PSA gas making system, which comprises:
a filter 1, an air compressor 2 and a cooler 3 connected in front and rear for filtering, purifying, compressing and cooling air;
one end of the adsorption tower is connected with the cooler and is provided with a waste gas outlet pipeline; the number of the adsorption towers is more than 2; the waste gas outlet pipeline is connected with a silencer 4, and the silencer is communicated with the outside;
the other end of the adsorption tower is respectively connected with a throttle valve 10 and the other adsorption tower; the throttle valves 10 are all connected with a test module, and the test module is connected with a second computer 16;
on the pipeline that cooler 3 and adsorption tower are connected, on the pipeline that adsorption tower and choke valve 10 are connected, on the pipeline of being connected between the adsorption tower, all be provided with solenoid valve 5 on the pipeline that adsorption tower and external world are connected, solenoid valve 5 all links to each other with a PLC controller 17.
The testing module comprises a check valve 11, an air storage tank 12, a pressure limiting valve 13, a flow meter 14 and a measuring instrument 15 which are connected in a front-back mode. The measuring instrument 15 is connected to a second computer 16, and the throttle valves 10 are connected to the non-return valve 11. The PLC controller 17 is connected to the second computer 16. The measuring instrument 15 in the measuring module detects the purity of a part of product gas and feeds the purity back to the second computer 16, and the second computer 16 is connected with the PLC 17 to adjust and control all the electromagnetic valves 5.
The gas production system further comprises a pressure transmitter 18, which is connected to all adsorption towers and to a first computer 19. The pressure transmitter can obtain the pressure change data in all the adsorption towers and judge whether the operations such as adsorption, pressure rise, pressure drop and the like in the adsorption towers are normally carried out.
For example, in an embodiment of the present invention, a part of the gas in the first adsorption tower 6 performs the blowback cleaning on the third adsorption tower 8, but is not limited thereto.
The rest of the product gas is discharged into the atmosphere through the silencer 4 in the process of desorption of the absorbent in the adsorption tower, and the silencer 4 can reduce noise pollution caused by discharged waste gas.
The following detailed description of the present invention is provided in connection with the accompanying drawings for better understanding of the present invention, but not to limit the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a novel multi-tower high-efficiency energy-saving PSA gas production system, which includes:
a filter 1, an air compressor 2 and a cooler 3 connected in front and rear for filtering, purifying, compressing and cooling air;
four adsorption towers; one end of each of the four adsorption towers is connected with a cooler and is provided with a waste gas outlet pipeline; the waste gas outlet pipeline is connected with a silencer 4, and the silencer is communicated with the outside;
the other ends of the four adsorption towers are respectively connected with the four throttle valves 10 and the other adsorption tower; the throttle valves 10 are all connected with a test module, and the test module is connected with a second computer 16;
the electromagnetic valves 5 are arranged on a pipeline connected with the cooler 3 and the adsorption tower, a pipeline connected with the throttle valve 10, a pipeline connected between the adsorption towers and a waste gas outlet pipeline, and the electromagnetic valves 5 are connected with a PLC 17.
The testing module comprises a check valve 11, an air storage tank 12, a pressure limiting valve 13, a flow meter 14 and a measuring instrument 15 which are connected in a front-back mode. The measuring instrument 15 is connected to a second computer 16, and the throttle valves 10 are connected to the non-return valve 11. The PLC controller 17 is connected to the second computer 16. The measuring instrument 15 in the measuring module detects the purity of a part of product gas and feeds the purity back to the second computer 16, and the second computer 16 is connected with the PLC 17 to adjust and control all the electromagnetic valves 5.
The use method of the novel multi-tower high-efficiency energy-saving PSA gas making system provided by the embodiment comprises the following steps: firstly, the PLC 17 controls the electromagnetic valve 5, and air enters the adsorption tower after being processed by the filter 1, the air compressor 2 and the cooler 3; then, the adsorption tower carries out adsorption separation on the air, a part of the separated product gas enters a test module through a throttle valve 10, enters a gas storage tank 12 in the test module, flows out through a flowmeter 14, outputs most of the product gas, and feeds a small part of the product gas into a measuring instrument 15 to detect the purity of the product gas and feeds the product gas back to a second computer 16; secondly, the other part of the product gas carries out back flushing cleaning on the other adsorption tower, and the rest part of the product gas enters the silencer 4 and is discharged to the atmosphere in the process of absorbent desorption in the adsorption tower. Meanwhile, each adsorption tower is connected with a pressure transmitter 18 and a first computer 19 to obtain the value of the pressure change in the adsorption tower.
In a primary gas making cycle, an adsorption tower in each gas making device is subjected to nine process steps of adsorption (a), primary pressure equalizing drop (ed1), secondary pressure equalizing drop (ed2), inverse release (d), cleaning (p), primary pressure equalizing rise (er1), idle operation (-), secondary pressure equalizing rise (er2) and final stamping (fr).
Table 1 is a pressure swing adsorption timing chart for an adsorption column in a gas making cycle.
TABLE 1 four-tower pressure swing adsorption timing chart
As shown in table 1, one gas making cycle in one gas making apparatus is nine steps including:
step one, after the pressure of a first adsorption tower 6 is increased, the first adsorption tower continues to enter feed gas, so that the gas in the first adsorption tower is fully adsorbed under certain pressure, a layer of unused adsorbent (critical to no gas at an outlet of the tower top) is still reserved at the tail end of the tower top of the first adsorption tower, gas inlet is stopped, a part of the obtained product gas is used as product gas, a part of the obtained product gas is used for cleaning a third adsorption tower 8, and the product gas remained in the first adsorption tower is used for increasing the pressure of other towers;
step two, connecting the first adsorption tower 6 with the third adsorption tower 8 until the pressures of the two towers are consistent, and finishing one-time pressure equalizing drop;
step three, connecting the first adsorption tower 6 with a fourth adsorption tower 9 with the lowest pressure until the pressure is balanced to finish secondary pressure equalizing and reducing;
opening a solenoid valve 5 on a pipeline connecting the first adsorption tower 6 and the outside to reduce the residual gas to the lowest pressure, discharging part of impurities in the tower and finishing reverse discharge;
step five, washing the first adsorption tower 6 by using a part of product gas generated by the third adsorption tower 8 to clean impurities in the first adsorption tower 6;
sixthly, performing primary pressure equalization and rise on the first adsorption tower 6 by using part of product gas of the second adsorption tower 7;
step seven, idle operation, in order to realize circulation;
step eight, performing secondary pressure equalization and rising on the first adsorption tower 6 by using the product gas of the third adsorption tower 8;
and step nine, after the pressure of the first adsorption tower 6 is increased for the second time, the pressure is increased to the adsorption pressure through the raw material gas, and the preparation is carried out for the next adsorption.
Can know by table 1, among the novel energy-efficient PSA system of multitower that this embodiment provided, can have a plurality of adsorption towers to adsorb simultaneously in every system gas device (promptly for an), and can realize many times the voltage-sharing, reduce the consumption of compressor, the multitower is more steady for current two adsorption tower operating condition, even a certain adsorption tower trouble, also can cut the tower operation temporarily, do not influence production and go on, and every adsorption tower all connects pressure transmitter, can implement the control to tower internal pressure, the purity of product gas is by measuring apparatu 15 real time monitoring, and make corresponding technology adjustment, if the system gas device breaks down, then accessible PLC controller 17 control solenoid valve 5 parks, it is more steady to produce, reduce the fluctuation of flow and product gas purity.
The use method is only an example of a multi-tower efficient PSA gas production system consisting of four adsorption towers, the number of the adsorption towers in the multi-tower efficient PSA gas production system provided by the present invention is not limited to this specific value, and the specific use method may be changed according to the number of the adsorption towers, without limiting the scope of the present invention.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications or alterations to this practice will occur to those skilled in the art and are intended to be within the scope of this invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (6)
1. A novel energy-efficient PSA system of making gas of many towers, its characterized in that, PSA system of making gas includes:
the filter (1), the air compressor (2) and the cooler (3) are connected in front and back and are used for filtering, purifying, compressing and cooling air;
an adsorption tower; one end of the adsorption tower is connected with the cooler and is provided with a waste gas outlet pipeline; the number of the adsorption towers is more than 2;
the other end of each adsorption tower is respectively connected with a throttle valve (10) and the other adsorption tower; the throttle valves (10) are connected with a test module, and the test module is connected with a second computer (16);
cooler (3) with on the pipeline that the adsorption tower is connected, the adsorption tower with on the pipeline that choke valve (10) are connected, on the pipeline of connecting between the adsorption tower, all be provided with solenoid valve (5) on the waste gas outlet pipeline, solenoid valve (5) all link to each other with a PLC controller (17).
2. The novel multi-tower high-efficiency energy-saving PSA gas production system according to claim 1, wherein the test module comprises a check valve (11), a gas storage tank (12), a pressure limiting valve (13), a flow meter (14) and a measuring instrument (15) which are connected in sequence.
3. The new multi-tower energy efficient PSA gas generation system according to claim 2, wherein the meter (15) is connected to the second computer (16).
4. The new multi-tower energy-efficient PSA gas-making system according to claim 1, wherein said waste gas outlet pipe is connected to a silencer (4), and said silencer (4) is connected to the outside.
5. The new multi-tower energy-efficient PSA gas generation system according to claim 1, wherein the PLC controller (17) is connected to the second computer (16).
6. The new multi-tower energy-efficient PSA gas generation system according to claim 1, further comprising a pressure transmitter (18), wherein said pressure transmitter (18) is connected to all of said adsorption towers and to a first computer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022939864.3U CN215463123U (en) | 2020-12-10 | 2020-12-10 | Novel multi-tower efficient energy-saving PSA gas production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022939864.3U CN215463123U (en) | 2020-12-10 | 2020-12-10 | Novel multi-tower efficient energy-saving PSA gas production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215463123U true CN215463123U (en) | 2022-01-11 |
Family
ID=79717363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022939864.3U Active CN215463123U (en) | 2020-12-10 | 2020-12-10 | Novel multi-tower efficient energy-saving PSA gas production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215463123U (en) |
-
2020
- 2020-12-10 CN CN202022939864.3U patent/CN215463123U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113350968A (en) | Hydrogen extraction device and process for recovering tail gas components by using synthetic hydrogen | |
| CN113457373A (en) | VPSA oxygen generation process and system for efficiently utilizing adsorbent | |
| CN109173583A (en) | A kind of medium temperature vacuum pressure swing adsorption system and method | |
| EP1354619B1 (en) | Method for separating hydrogen gas | |
| CN110921636B (en) | Energy-saving modular pressure swing adsorption nitrogen production system and control flow thereof | |
| CN215463123U (en) | Novel multi-tower efficient energy-saving PSA gas production system | |
| CN113426245B (en) | High-purity gas preparation method based on pressure swing adsorption | |
| US20240307812A1 (en) | Method and device for stepwise pressure-equalized pressure swing adsorption (psa) gas separation by changing paths | |
| CN108793077B (en) | Pressure swing adsorption hydrogen production system | |
| CN211419580U (en) | Energy-saving modular pressure swing adsorption nitrogen making system | |
| CN210613325U (en) | Compressed air purification device with compressor unloading protection function | |
| KR20050030957A (en) | Method of separating target gas | |
| CN117138525A (en) | Adsorption tower for pressure swing adsorption oxygen production and pressure swing adsorption oxygen production system | |
| CN208049671U (en) | A kind of device improving recycling hydrogen purity | |
| CN102091501A (en) | Upper and lower pressure-equalizing pressure swing adsorption method | |
| CN101601959A (en) | A kind of Zero gas consumption low dew point compression heat regeneration absorption compressed air drying method and device thereof | |
| CN108821248A (en) | A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen | |
| CN211111061U (en) | Container formula nitrogen generator | |
| CN209306950U (en) | A kind of novel energy-saving high-efficiency type PSA equipment of making nitrogen | |
| CN110203892B (en) | A high-temperature, high-efficiency and rapid pressure swing adsorption nitrogen production equipment and nitrogen production method | |
| CN206853402U (en) | Pressure swing adsorption gas separation device | |
| CN201394410Y (en) | Pressure-swing absorption device capable of rapidly increasing pressure of absorption tower | |
| JP3694343B2 (en) | PSA for low concentration oxygen | |
| CN215403093U (en) | VPSA oxygen generation system for efficiently utilizing adsorbent | |
| CN222348690U (en) | A single-tower nitrogen production device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |