CN119455599B - Pressure swing adsorption tower with gaseous equipartition filtering mechanism - Google Patents
Pressure swing adsorption tower with gaseous equipartition filtering mechanism Download PDFInfo
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- CN119455599B CN119455599B CN202510059504.9A CN202510059504A CN119455599B CN 119455599 B CN119455599 B CN 119455599B CN 202510059504 A CN202510059504 A CN 202510059504A CN 119455599 B CN119455599 B CN 119455599B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/116—Molecular sieves other than zeolites
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- Separation Of Gases By Adsorption (AREA)
Abstract
The invention relates to the technical field of pressure swing adsorption towers, and particularly discloses a pressure swing adsorption tower with a gas uniform distribution filtering mechanism, which comprises a tower body, wherein a tower bottom cover is arranged at the bottom end of the tower body, and a tower top cover is arranged at the top end of the tower body; the filtering separation assembly comprises a tower body, three filtering separation assemblies, a plurality of flow dividing cylinders and a plurality of flow dividing cylinders, wherein the three filtering separation assemblies are arranged on the inner wall of the tower body, an adsorbent is arranged between two adjacent filtering separation assemblies, a reinforcing structure is arranged in each filtering separation assembly, the flow dividing cylinders are distributed in an array, and the flow dividing cylinders are positioned between two adjacent filtering separation assemblies and are inserted into the adsorbent. The invention replaces the conventional gas point-surface type inlet adsorbent, has a three-dimensional space type inlet adsorbent, slows down the pulverization or failure of the adsorbent close to the air inlet, reduces the replacement frequency of the adsorbent, reduces the production cost, has a multi-point constant-pressure conveying structure for gas, and improves the effect of leading the gas to the adsorbent.
Description
Technical Field
The invention relates to the technical field of pressure swing adsorption towers, in particular to a pressure swing adsorption tower with a gas uniform distribution filtering mechanism.
Background
A pressure swing adsorption tower is a device for separating and purifying gas by utilizing the difference of adsorption capacities of adsorbents on gas under different pressures, and the basic principle is that adsorption and desorption processes are realized by controlling the lifting of pressure, when the pressure is increased, the adsorbents adsorb certain components in the mixed gas, and when the pressure is reduced, the adsorbents release the components, so that the separation is realized. The hydrogen purification adopts a multi-tower adsorption pressure swing adsorption technology, which is based on physical adsorption of gas molecules on the surface of a specific adsorbent, and utilizes the characteristics that the adsorbent is easy to adsorb high-boiling components, difficult to adsorb low-boiling components and has increased adsorption capacity under high pressure and reduced adsorption capacity under low pressure, so that raw gas passes through an adsorption bed under the specific pressure, high-boiling impurity components relative to hydrogen are selectively adsorbed, and low-boiling gas is difficult to adsorb and passes through the adsorption bed, thereby separating hydrogen and impurity components. After the completion of the adsorption, the adsorbent is desorbed with the adsorbed impurity components under reduced pressure to regenerate the adsorbent for the re-adsorption separation of impurities, and since the adsorption separation process is intermittent in a single-column operation, it is common in the industry to employ two-column or multi-column adsorption for continuous operation, with the adsorption and regeneration of the adsorbent in the adsorption column being alternately performed.
In the use process of the existing pressure swing adsorption tower, as the position of the adsorbent and the flowing direction of the gas to be purified are both fixedly arranged, the adsorbent close to the gas inlet is easily affected by impurities such as moisture, oil and the like, and pulverization or failure is caused, so that the separation effect and long-term stable operation of equipment are affected, the replacement frequency of the adsorbent is high, and the production cost is high.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a pressure swing adsorption tower with a gas uniform distribution filtering mechanism, which can solve the problems in the background art.
The aim of the invention can be achieved by the following technical scheme:
A pressure swing adsorption tower with gas uniform filtration mechanism, comprising:
the tower body, the bottom of the said tower body has tower bottom covers, the top of the said tower body has tower top covers;
The filtering separation assemblies are arranged on the inner wall of the tower body, adsorbents are arranged between two adjacent filtering separation assemblies, and reinforcing structures are arranged in the filtering separation assemblies;
The split flow cylinders are distributed in an array, the split flow cylinders are opened towards the air inlet end and closed away from the air inlet end to form a top wall, the split flow cylinders are positioned between two adjacent filtering separation assemblies and inserted into the adsorbent, a plurality of drainage channels are arranged on the side walls of the split flow cylinders, and the drainage channels are used for exhausting air;
The isobaric flow limiting assembly comprises a plurality of circular plates and limiting rings, the circular plates are fixedly arranged on the inner wall of the flow distribution cylinder, the limiting rings are fixedly arranged on the inner wall of the flow distribution cylinder, two adjacent circular plates are matched with the flow distribution cylinder to form an exhaust cavity, lifting plates are slidably arranged in the plurality of exhaust cavities of the flow distribution cylinder, the lifting plates are located between the adjacent circular plates and the limiting rings, springs are arranged at the top ends of the lifting plates, drainage tubes penetrate through the lifting plates and are fixedly arranged on the drainage tubes, and the drainage tubes penetrate through and are slidably connected with the adjacent circular plates.
Preferably, the bottom end of the tower body is provided with three supporting feet through a tower bottom cover, and the top end of the tower top cover is provided with a communicated air outlet.
Preferably, the bottom end of the tower bottom cover is provided with a communicated air inlet, and the air inlet is connected with a high-pressure conveying assembly for conveying gas to be purified.
Preferably, the filtering separation assembly comprises a supporting pipe, the supporting pipe is fixedly arranged on the inner wall of the tower body, rib rings are arranged on the inner wall of the supporting pipe, molecular sieves and flow equalizing plates are respectively arranged on two sides of the rib rings, and the bottom end of the flow dividing cylinder is arranged in a through hole of the flow equalizing plate.
Preferably, a plurality of fasteners are arranged among the rib ring, the molecular sieve and the flow equalizing plate.
Preferably, the reinforcement structure comprises a first support ring and a second support ring, the first support ring, the second support ring and the support tube are coaxially arranged, a plurality of first reinforcement ribs are arranged between the first support ring and the second support ring, and a plurality of second reinforcement ribs are arranged between the first support ring and the rib ring.
Preferably, the outer diameter of the second support ring is smaller than the inner diameter of the first support ring, and the outer diameter of the first support ring is smaller than the inner diameter of the rib ring.
Preferably, the plurality of exhaust chambers of the split flow cylinder along the opening to the top wall direction are arranged in a linear array, and the number of the drainage channels in the plurality of exhaust chambers of the split flow cylinder along the opening to the top wall direction is arranged in a decreasing manner.
Preferably, the inner wall of the exhaust cavity of the diversion cylinder is provided with two limit posts, and the side wall of the lifting plate is provided with grooves matched with the limit posts.
Preferably, the top end of the spring is rotatably connected with the adjacent circular plate through a cylinder, and the original length of the spring is smaller than the length of the drainage channel.
The beneficial effects of the invention are as follows:
1. The tower body has the beneficial effects that the tower bottom cover is arranged at the bottom end of the tower body, the tower top cover is arranged at the top end of the tower body, the filtering separation assemblies are arranged on the inner wall of the tower body, the adsorbents are arranged between two adjacent filtering separation assemblies, the reinforcing structures are arranged in the filtering separation assemblies, the plurality of the flow distribution cylinders are distributed in an array, the flow distribution cylinders are positioned between two adjacent filtering separation assemblies and are inserted into the adsorbents, and the side walls of the flow distribution cylinders are provided with a plurality of drainage channels for exhausting;
The gas to be purified is conveyed into the tower body through the high-pressure conveying component, the gas enters the tower bottom cover through the gas inlet, the molecular sieve close to the tower bottom cover performs preliminary filtration on the gas, the gas flows into the plurality of diversion cylinders after being subjected to flow equalization through the flow equalization plates, flows into the adsorbent gaps through the drainage channels in the plurality of exhaust chambers, the gas treated by the adsorbent is filtered through the molecular sieve positioned in the middle of the tower body, the gas enters the plurality of diversion cylinders positioned at the upper part of the tower body from the plurality of diversion cylinders after being subjected to flow equalization through the flow equalization plates, and is filtered and discharged from the filtering separation component close to the tower top cover after being treated by the adsorbent, so that the conventional gas point-surface type entering adsorbent is replaced, the three-dimensional space entering adsorbent is realized, and the adsorption efficiency is improved.
2. The distribution cylinders are distributed in an array, the distribution cylinders are positioned between two adjacent filtering separation assemblies and are inserted into the adsorbent, the side walls of the distribution cylinders are provided with a plurality of drainage channels for exhausting, the distribution cylinders are arranged in a linear array along a plurality of exhaust chambers in the direction of the opening to the top wall, and the number of the circumferential arrays of the drainage channels in the distribution cylinders along the direction of the opening to the top wall is reduced;
Because the flow distribution cylinder is arranged in the linear array along the direction from the opening to the top wall, the number of the circumferential arrays of the drainage channels in the flow distribution cylinder along the direction from the opening to the top wall is reduced, the pulverization or failure of the adsorbent close to the air inlet is slowed down, the replacement frequency of the adsorbent is reduced, and the production cost is reduced.
3. The constant-pressure current limiting assembly has the beneficial effects that the constant-pressure current limiting assembly comprises a plurality of circular plates and limiting rings, the circular plates are fixedly arranged on the inner wall of the flow dividing cylinder, the limiting rings are fixedly arranged on the inner wall of the flow dividing cylinder, two adjacent circular plates are matched with the flow dividing cylinder to form an exhaust cavity, lifting plates are slidably arranged in the plurality of exhaust cavities of the flow dividing cylinder, the lifting plates are positioned between the adjacent circular plates and the limiting rings, springs are arranged at the top ends of the lifting plates, the lifting plates penetrate through and are fixedly provided with drainage tubes, and the drainage tubes penetrate through and are slidably connected with the adjacent circular plates;
When the conveying pressure of the gas is improved, the exhaust chambers are communicated, the internal pressure is synchronously increased, the lifting plate slides to the top end of the flow dividing cylinder due to pressure difference, the springs are compressed, the effective drainage length of the drainage channel is increased, the multi-point equal-pressure conveying structure of the gas is provided, and the effect of leading the gas to the adsorbent is improved.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a diagram showing the installation structure of the tower and support tube according to the present invention;
FIG. 3 is a mounting block diagram of a reinforcing structure of the present invention;
FIG. 4 is an exploded view of the filter divider assembly of the present invention;
FIG. 5 is a cross-sectional view of the tower of the present invention;
FIG. 6 is a mounting structure diagram of the splitter box and the flow equalization plates in the present invention;
FIG. 7 is a block diagram of the installation of the isopiestic flow restriction assembly of the present invention;
FIG. 8 is a diagram showing the installation construction of a spring and lifter plate in the present invention;
FIG. 9 is a view showing the construction of the installation of the lifter plate and draft tube in the present invention.
Reference numerals illustrate:
In the figure, 1, a tower body; 11, a bottom cover, 12, a top cover, 13, supporting legs, 14, an air inlet, 15, an air outlet, 2, a filtering separation component, 21, a supporting tube, 22, a rib ring, 23, a molecular sieve, 24, a flow equalizing plate, 25, a fastener, 31, a first supporting ring, 32, a second supporting ring, 33, a first reinforcing rib, 34, a second reinforcing rib, 4, a flow dividing cylinder, 41, a drainage channel, 51, a circular plate, 52, a limiting ring, 53, a lifting plate, 54, a spring, 55, a drainage tube, 56 and a limiting column.
Detailed Description
In order to further illustrate the technical means and effects adopted by the present invention for achieving the intended purpose, the following description of the specific embodiments, structures, features and effects according to the present invention will be clearly and completely described with reference to the accompanying drawings and preferred embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present application, it should be understood that the orientation or positional relationship indicated by "inner", "outer", etc. is the orientation or position described based on the drawings, and is merely for convenience of description and simplification of the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, a specific orientation configuration and operation, and therefore should not be construed as limiting the present application.
Referring to fig. 1-9, a pressure swing adsorption tower with a gas uniform distribution filtering mechanism disclosed by the invention comprises a tower body 1, wherein a tower bottom cover 11 is arranged at the bottom end of the tower body 1, a tower top cover 12 is arranged at the top end of the tower body 1, three supporting feet 13 are arranged at the bottom end of the tower body 1 through the tower bottom cover 11, a communicated air inlet 14 is arranged at the bottom end of the tower bottom cover 11, the air inlet 14 is connected with a high-pressure conveying component for conveying gas to be purified, and a communicated air outlet 15 is arranged at the top end of the tower top cover 12;
the filtering separation assembly 2, three filtering separation assemblies 2 are arranged on the inner wall of the tower body 1, an adsorbent is arranged between two adjacent filtering separation assemblies 2, the filtering separation assembly 2 comprises a supporting pipe 21, the supporting pipe 21 is fixedly arranged on the inner wall of the tower body 1, a rib ring 22 is arranged on the inner wall of the supporting pipe 21, a molecular sieve 23 and a flow equalizing plate 24 are respectively arranged on two sides of the rib ring 22, a plurality of fasteners 25 are arranged between the rib ring 22, the molecular sieve 23 and the flow equalizing plate 24, a reinforcing structure is arranged in the filtering separation assembly 2, the reinforcing structure comprises a first supporting ring 31 and a second supporting ring 32, the outer diameter of the second supporting ring 32 is smaller than the inner diameter of the first supporting ring 31, the outer diameter of the first supporting ring 31 is smaller than the inner diameter of the rib ring 22, the first supporting ring 31, the second supporting ring 32 and the supporting pipe 21 are coaxially arranged, a plurality of first reinforcing ribs 33 are arranged between the first supporting ring 31 and the second supporting ring 32, and a plurality of second reinforcing ribs 34 are arranged between the first supporting ring 31 and the rib ring 22;
The flow dividing barrels 4 are distributed in an array, the flow dividing barrels 4 are positioned between two adjacent filtering separation assemblies 2 and inserted into the adsorbent, the bottom ends of the flow dividing barrels 4 are installed in through holes of the flow equalizing plates 24, a plurality of drainage channels 41 are arranged on the side walls of the flow dividing barrels 4, and the drainage channels 41 are used for exhausting;
the isobaric flow limiting assembly comprises a plurality of circular plates 51 and limiting rings 52, the circular plates 51 are fixedly arranged on the inner wall of the flow distribution cylinder 4, the limiting rings 52 are fixedly arranged on the inner wall of the flow distribution cylinder 4, the adjacent two circular plates 51 are matched with the flow distribution cylinder 4 to form exhaust chambers, the flow distribution cylinder 4 is arranged in a linear array along a plurality of exhaust chambers in the direction of opening to the top wall, the number of the circumferential arrays of the drainage channels 41 in the plurality of exhaust chambers in the direction of opening to the top wall of the flow distribution cylinder 4 is reduced, lifting plates 53 are slidably arranged in the plurality of exhaust chambers of the flow distribution cylinder 4, the lifting plates 53 are positioned between the adjacent circular plates 51 and the limiting rings 52, the top ends of the lifting plates 53 are provided with springs 54, the top ends of the springs 54 are rotatably connected with the adjacent circular plates 51 through columns, the original length of the springs 54 is smaller than the length of the drainage channels 41, the lifting plates 53 penetrate through and are fixedly provided with drainage tubes 55, the drainage tubes 55 are in penetrating and slidably connected with the adjacent circular plates 51, the inner wall of the exhaust chambers of the flow distribution cylinder 4 are provided with two limiting columns 56, and the side walls of the lifting plates 53 are provided with grooves matched with the limiting columns 56.
The invention has the working principle and the use flow, the gas to be purified is conveyed into the tower body 1 through the high-pressure conveying component, the high-pressure conveying component comprises gas conveying equipment (such as a blower, a compressor or a vacuum pump), a filter, a pressure regulating and controlling device and an automatic control system, the gas enters the tower bottom cover 11 through the gas inlet 14, after the gas is preliminarily filtered through the molecular sieve 23 close to the tower bottom cover 11, the gas flows into the plurality of diversion cylinders 4 after flow equalization through the flow equalization plates 24, the gas flows into the adsorbent gaps through the plurality of drainage channels 41 in the air exhaust chambers, the gas after adsorbent treatment is filtered through the molecular sieve 23 positioned in the middle part of the tower body 1, then flows into the plurality of diversion cylinders 4 positioned at the upper part of the tower body 1 through the flow equalization plates 24, and is filtered and discharged from the filtering and separating component 2 close to the tower top cover 12 through the adsorbent treatment, the plurality of the air exhaust chambers 4 are arranged in a linear array along the direction of the top wall, the number of the drainage channels 41 in the air exhaust chambers along the direction of the top wall is reduced, the number of the drainage channels 41 in the circumference array along the direction of the top wall is reduced, or the frequency of the adsorption chambers is reduced, the pressure of the adsorbent is reduced, the pressure of the adsorption channels is reduced, and the pressure is increased, and the pressure is simultaneously is increased due to the pressure difference is increased when the pressure is increased, and the pressure is synchronously discharged due to the pressure equalization plate is increased.
The present invention is not limited in any way by the above-described preferred embodiments, but is not limited to the above-described preferred embodiments, and any person skilled in the art will appreciate that the present invention can be embodied in the form of a program for carrying out the method of the present invention, while the above disclosure may be used to make various changes or modifications to the equivalent embodiments, any brief description of the modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention will still fall within the scope of the technical aspects of the present invention.
Claims (7)
1. A pressure swing adsorption tower with gas equipartition filtering mechanism, characterized in that includes:
the tower body, the bottom of the said tower body has tower bottom covers, the top of the said tower body has tower top covers;
The filtering separation assemblies are arranged on the inner wall of the tower body, adsorbents are arranged between two adjacent filtering separation assemblies, and reinforcing structures are arranged in the filtering separation assemblies;
The flow distribution cylinders are distributed in an array, the flow distribution cylinders are open towards the air inlet end and closed away from the air inlet end to form a top wall, the flow distribution cylinders are positioned between two adjacent filtering separation assemblies and inserted into the adsorbent, the bottom ends of the flow distribution cylinders are arranged in through holes of the flow equalization plates, the side walls of the flow distribution cylinders are provided with a plurality of drainage channels, and the drainage channels are used for exhausting air;
The constant-pressure flow limiting assembly comprises a plurality of circular plates and limiting rings, the circular plates are fixedly arranged on the inner wall of the flow dividing cylinder, the limiting rings are fixedly arranged on the inner wall of the flow dividing cylinder, two adjacent circular plates are matched with the flow dividing cylinder to form an exhaust cavity, lifting plates are slidably arranged in the plurality of exhaust cavities of the flow dividing cylinder, the lifting plates are positioned between the adjacent circular plates and the limiting rings, springs are arranged at the top ends of the lifting plates, the lifting plates penetrate through and are fixedly provided with drainage tubes, and the drainage tubes penetrate through and are slidably connected with the adjacent circular plates;
The filtering separation assembly comprises a supporting tube, the supporting tube is fixedly arranged on the inner wall of the tower body, rib rings are arranged on the inner wall of the supporting tube, and a molecular sieve and a flow equalizing plate are respectively arranged on two sides of each rib ring;
the flow dividing cylinder is arranged in a linear array along a plurality of exhaust chambers in the direction of the opening to the top wall, and the number of the circumferential arrays of the drainage channels in the flow dividing cylinder along the direction of the opening to the top wall is reduced;
The inner wall of the exhaust cavity of the diversion cylinder is provided with two limit posts, and the side wall of the lifting plate is provided with grooves matched with the limit posts.
2. The pressure swing adsorption tower with the gas uniform distribution filtering mechanism according to claim 1, wherein three supporting feet are arranged at the bottom end of the tower body through a tower bottom cover, and a communicated gas outlet is arranged at the top end of the tower top cover.
3. The pressure swing adsorption tower with the gas uniform distribution filtering mechanism according to claim 1, wherein the bottom end of the tower bottom cover is provided with a communicated gas inlet, and the gas inlet is connected with a high-pressure conveying assembly for conveying gas to be purified.
4. The pressure swing adsorption tower with gas uniform distribution filtering mechanism according to claim 1, wherein a plurality of fasteners are arranged among the rib ring, the molecular sieve and the flow equalizing plate.
5. The pressure swing adsorption tower with gas uniform distribution filtering mechanism according to claim 1, wherein the reinforcing structure comprises a first supporting ring and a second supporting ring, the first supporting ring, the second supporting ring and the supporting tube are coaxially arranged, a plurality of first reinforcing ribs are arranged between the first supporting ring and the second supporting ring, and a plurality of second reinforcing ribs are arranged between the first supporting ring and the rib ring.
6. The pressure swing adsorption column with gas uniform distribution filtering mechanism according to claim 5, wherein the outer diameter of said second support ring is smaller than the inner diameter of said first support ring, and the outer diameter of said first support ring is smaller than the inner diameter of said rib ring.
7. The pressure swing adsorption tower with gas uniform distribution filtering mechanism according to claim 1, wherein the top end of the spring is rotatably connected with the adjacent circular plate through a cylinder, and the original length of the spring is smaller than the length of the drainage channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510059504.9A CN119455599B (en) | 2025-01-15 | 2025-01-15 | Pressure swing adsorption tower with gaseous equipartition filtering mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510059504.9A CN119455599B (en) | 2025-01-15 | 2025-01-15 | Pressure swing adsorption tower with gaseous equipartition filtering mechanism |
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| CN119455599A CN119455599A (en) | 2025-02-18 |
| CN119455599B true CN119455599B (en) | 2025-05-23 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841244A (en) * | 2020-07-22 | 2020-10-30 | 山东津挚环保科技有限公司 | Pressure swing adsorption hydrogen purification system |
| CN116351202A (en) * | 2023-02-03 | 2023-06-30 | 山东百特机械设备有限公司 | Radial flow equalizing pressure swing adsorption tower |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2320551C (en) * | 2000-09-25 | 2005-12-13 | Questair Technologies Inc. | Compact pressure swing adsorption apparatus |
| CN116617813B (en) * | 2023-06-26 | 2025-08-22 | 北京北大先锋科技股份有限公司 | A pressure swing adsorption oxygen production system and oxygen production process |
| CN221637722U (en) * | 2023-12-12 | 2024-09-03 | 江苏鼎嘉机械设备科技有限公司 | Oxygen-making adsorption tower for pressure swing adsorption station |
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- 2025-01-15 CN CN202510059504.9A patent/CN119455599B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841244A (en) * | 2020-07-22 | 2020-10-30 | 山东津挚环保科技有限公司 | Pressure swing adsorption hydrogen purification system |
| CN116351202A (en) * | 2023-02-03 | 2023-06-30 | 山东百特机械设备有限公司 | Radial flow equalizing pressure swing adsorption tower |
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