CN218834058U - Convenient PSA voltage-sharing system - Google Patents
Convenient PSA voltage-sharing system Download PDFInfo
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- CN218834058U CN218834058U CN202223342477.7U CN202223342477U CN218834058U CN 218834058 U CN218834058 U CN 218834058U CN 202223342477 U CN202223342477 U CN 202223342477U CN 218834058 U CN218834058 U CN 218834058U
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Abstract
The utility model discloses a convenient PSA voltage-sharing system, include: the cavity A is communicated with a first branch pipe and a second branch pipe; the cavity B is communicated with a third branch pipe and a fourth branch pipe; the first branch pipe is communicated with the third branch pipe and is communicated with the air inlet pipe, and the second branch pipe is communicated with the fourth branch pipe and is communicated with the air outlet pipe; the two ends of the bottom pressure equalizing pipe are respectively communicated with the first branch pipe and the third branch pipe; the bottom pressure equalizing pipe is provided with two check valves M and N which are arranged at intervals; the two ends of the connecting pipe are respectively communicated with the bottom pressure equalizing pipe and the air outlet pipe, and the communication position of the connecting pipe and the bottom pressure equalizing pipe is positioned between the one-way valve M and the one-way valve N; the connecting pipe is provided with a control valve six. According to the utility model discloses a PSA voltage-sharing system can greatly promote voltage-sharing efficiency, promotes the gaseous rate of recovery of end finished product of giving vent to anger, and simple structure, good reliability and control mode are simple simultaneously, and low in manufacturing cost can realize rapid Assembly.
Description
Technical Field
The utility model relates to an adsorption tower pressure adjustment technical field, in particular to convenient PSA voltage-sharing system.
Background
In a typical PSA gas path diagram, referring to fig. 3, a gas source enters a cavity a through a solenoid valve 1, the cavity is filled with an adsorbent, most of the purified gas enters a downstream and is provided to gas-consuming equipment, a small amount (about 16% to 20%) of the purified gas enters a cavity B through a throttle valve (the pressure of the gas passing through the throttle valve is about equal to atmospheric pressure), and the gas is intercepted in the adsorbent in the last cycle, and the tail gas is exhausted through a solenoid valve 4 after the blowback gas passes through the cavity B. As can be seen from fig. 3, the solenoid valve 1 and the solenoid valve 4 cooperate with each other to form an air circuit, and the solenoid valve 2 and the solenoid valve 3 cooperate with each other in pairs to cyclically operate.
In order to avoid the influence of pressure mutation on downstream gas equipment and slow down the pulverization phenomenon of the adsorbent in the cavities A and B caused by the pressure mutation, a pressure equalizing stage is added before the air inlet switching: after the cavity B is fully regenerated, the electromagnetic valve 4 is closed in advance, so that the pressure in the cavity B is gradually increased from the normal pressure to the working pressure, then the electromagnetic valve 1 is closed, and the electromagnetic valve 2 and the electromagnetic valve 3 are opened at the same time. However, the pressure equalizing method is not only low in efficiency, but also consumes more gas at the gas outlet end, so that the recovery rate of the gas at the gas outlet end is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a convenient PSA voltage-sharing system can greatly promote voltage-sharing efficiency, promotes the end off-the-shelf rate of recovery of giving vent to anger, and simple structure, good reliability and control mode are simple simultaneously, and low in manufacturing cost can realize rapid Assembly.
According to the utility model discloses convenient PSA voltage-sharing system, include: the cavity A is communicated with a first branch pipe and a second branch pipe; the cavity B is communicated with a third branch pipe and a fourth branch pipe; the first branch pipe is communicated with the third branch pipe and is connected with an air inlet pipe, and the second branch pipe is communicated with the fourth branch pipe and is connected with an air outlet pipe; the two ends of the bottom pressure equalizing pipe are respectively communicated with the first branch pipe and the third branch pipe; the bottom pressure equalizing pipe is provided with two check valves M and N which are arranged at intervals; the two ends of the connecting pipe are respectively communicated with the bottom pressure equalizing pipe and the air outlet pipe, and the communication position of the connecting pipe and the bottom pressure equalizing pipe is positioned between the one-way valve M and the one-way valve N; the connecting pipe is provided with a control valve six.
According to the utility model discloses PSA voltage-sharing system has following beneficial effect at least:
the bottom pressure equalizing pipe and the connecting pipe are communicated with the cavity A or the cavity B, so that the pressure equalizing efficiency and the recovery rate of finished gas at the gas outlet end are greatly improved; the bottom pressure equalizing pipe is provided with a one-way valve M and a one-way valve N, and the connecting pipe is connected between the one-way valve M and the one-way valve N; one end of the connecting pipe, which is far away from the bottom pressure equalizing pipe, is communicated with the air outlet pipe, so that the connecting mode is optimized, and the manufacturing cost is reduced.
According to the utility model discloses a some embodiments, check valve M is used for restricting the gas in the first feeder line to the one-way inflow of bottom equalizer tube, check valve N is used for restricting the gas in the third feeder line to the one-way inflow of bottom equalizer tube.
According to some embodiments of the present invention, the second branch pipe is provided with a check valve X for restricting the gas of the second branch pipe from flowing in one direction to the gas outlet pipe; the fourth branch pipe is provided with a one-way valve Y, and the one-way valve Y is used for limiting the gas of the fourth branch pipe to flow towards the gas outlet pipe in a one-way mode.
According to the utility model discloses a some embodiments, the second lateral line pipe the junction of fourth lateral line pipe and outlet duct is the junction, the junction set up in check valve X with between the check valve Y.
According to the utility model discloses a some embodiments, the connecting pipe is kept away from the one end of bottom equalizer pipe with the junction is connected.
According to the utility model discloses a some embodiments, be provided with top equalizer tube and blowback pipe between second branch spool and the fourth branch spool, the top equalizer tube is provided with control valve five, the blowback pipe is provided with the choke valve.
According to the utility model discloses a some embodiments, first branch spool with still be provided with the fifth branch spool between the third branch spool, the fifth branch spool is provided with the control valve three and the control valve four that two intervals set up, communicate with the atmosphere between the control valve three and the control valve four.
According to the utility model discloses a some embodiments, first branch spool is provided with control valve one, the third branch spool is provided with control valve two, and intake-tube connection is between control valve one and control valve two.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an operation table of each control valve when the pressure equalizing system of the embodiment of the present invention is operated;
fig. 3 is a schematic diagram of a typical PSA gas circuit in the prior art.
Reference numerals:
the valve comprises a cavity A100, a first branch pipe 110, a first control valve 111, a second branch pipe 120 and a one-way valve X121;
a cavity B200, a third branch pipe 210, a second control valve 211, a fourth branch pipe 220 and a one-way valve Y221;
a bottom pressure equalizing pipe 300, a check valve M310 and a check valve N320;
a connecting pipe 400 and a control valve six 410;
the air inlet pipe 510, the air outlet pipe 520, the top pressure equalizing pipe 530, the control valve five 531, the blowback pipe 540, the fifth branch pipe 550, the control valve three 551 and the control valve four 552.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1, a convenient PSA pressure equalizing system according to an embodiment of the present invention includes a cavity a100 and a cavity B200 that are substantially the same as those in the prior art shown in fig. 3, where the cavity a100 is communicated with a first branch pipe 110 and a second branch pipe 120; the cavity B200 is communicated with a third branch pipe 210 and a fourth branch pipe 220; the first branch pipe 110 is connected to the third branch pipe 210 via an inlet pipe 510, and the second branch pipe 120 is connected to the fourth branch pipe 220 via an outlet pipe 520.
Further, in some embodiments of the present invention, a top pressure equalizing pipe 530 and a back-flushing pipe 540 are disposed between the second branch pipe 120 and the fourth branch pipe 220, the top pressure equalizing pipe 530 is provided with a fifth control valve 531, and the back-flushing pipe 540 is provided with a throttle valve. A fifth branch pipe 550 is further arranged between the first branch pipe 110 and the third branch pipe 210, the fifth branch pipe 550 is provided with a third control valve 551 and a fourth control valve 552 which are arranged at intervals, and the third control valve 551 and the fourth control valve 552 are communicated with the atmosphere. The first branch pipe 110 is provided with a first control valve 111, the third branch pipe 210 is provided with a second control valve 211, and the air inlet pipe 510 is connected between the first control valve 111 and the second control valve 211.
In some embodiments of the present invention, the present invention further comprises a bottom pressure equalizing tube 300 and a connecting tube 400, two ends of the bottom pressure equalizing tube 300 are respectively communicated with the first branch tube 110 and the third branch tube 210; the bottom pressure equalizing pipe 300 is provided with two check valves M310 and N320 which are arranged at intervals; two ends of the connecting pipe 400 are respectively communicated with the bottom pressure equalizing pipe 300 and the air outlet pipe 520, and the communication position of the connecting pipe 400 and the bottom pressure equalizing pipe 300 is positioned between the one-way valve M310 and the one-way valve N320; the connection pipe 400 is provided with a control valve six 410.
It should be understood that the control valves 1 to 6 are all solenoid valves, and the actions thereof can be controlled remotely.
In some embodiments of the present invention, the check valve M310 is used to limit the unidirectional inflow of the gas in the first branch pipe 110 to the bottom equalizing tube 300, and the check valve N320 is used to limit the unidirectional inflow of the gas in the third branch pipe 210 to the bottom equalizing tube 300.
In some embodiments of the present invention, the second branch pipe 120 is provided with a check valve X121, and the check valve X121 is used for limiting the gas of the second branch pipe 120 to flow to the gas outlet pipe 520 in one direction; the fourth branch pipe 220 is provided with a check valve Y221, and the check valve Y221 is used for limiting the unidirectional flow of the gas of the fourth branch pipe 220 to the gas outlet pipe 520. The junction of the second branch pipe 120, the fourth branch pipe 220 and the air outlet pipe 520 is a junction point, and the junction point is arranged between the check valve X121 and the check valve Y221.
In some embodiments of the present invention, the end of the connecting pipe 400 away from the bottom pressure equalizing pipe 300 is connected to the junction.
The operation sequence of the embodiment of the utility model is shown with reference to fig. 2 (note: "+" shows power on and "negative" shows power off and closes):
s1; adsorbing the cavity A100, and regenerating the cavity B200; the first control valve 111 and the fourth control valve 552 are opened, the second control valve 211 and the third control valve 551 are closed, gas enters the cavity A100 from the gas inlet pipe 510 through the first branch pipe 110, then enters the second branch pipe 120, most of the gas flows out of the gas outlet pipe 520 after passing through the one-way valve X121, a small part of the gas enters the fourth branch pipe 220 through the blowback pipe 540, then enters the cavity B200 to blow back the cavity B200, finally enters the fifth branch pipe 550 from the third branch pipe 210, and is discharged into the atmosphere after passing through the fourth control valve 552;
s2: the top of the cavity A100 and the top of the cavity B200 are pressure-equalized; opening a control valve five 531, closing the control valves one 111 to four 552 and a control valve six 410, and equalizing the pressure of the top of the cavity A100 and the top of the cavity B200 through a top pressure equalizing tube 530;
s3: the top of the cavity A100 and the bottom of the cavity B200 are pressure-equalized; opening a control valve six 410, closing a control valve one 111 to a control valve five 531, enabling gas in the cavity A100 to enter the connecting pipe 400 through the second branch pipe 120, then entering the bottom pressure equalizing pipe 300, and enabling the gas in the pressure equalizing pipe to enter the third branch pipe 210;
s4: adsorbing the cavity B200, and regenerating the cavity A100; the second control valve 211 and the third control valve 551 are opened, the first control valve 111 and the fourth control valve 552 are closed, the gas enters the cavity B200 from the gas inlet pipe 510 through the third branch pipe 210, then enters the fourth branch pipe 220, most of the gas flows out of the gas outlet pipe 520 after passing through the one-way valve Y221, a small part of the gas enters the second branch pipe 120 through the back flushing pipe 540, then enters the cavity A100 to back flush the cavity A100, finally enters the fifth branch pipe 550 from the first branch pipe 110, and is exhausted into the atmosphere after passing through the third control valve 551;
s5: the top of the cavity B200 and the top of the cavity A100 are pressure-equalized, and the steps are consistent with those of S2;
s6: the pressure equalizing is performed between the top of the cavity B200 and the bottom of the cavity A100, the step is the same as S3, but the gas entering the bottom pressure equalizing pipe 300 enters the first branch pipe 110:
repeating S1 to S6.
According to the PSA pressure equalizing system provided by the embodiment of the utility model, the pressure equalizing efficiency and the recovery rate of the finished gas at the gas outlet end are greatly improved by arranging the bottom pressure equalizing pipe 300 and the connecting pipe 400 to be communicated with the cavity A100 or the cavity B200; the bottom pressure equalizing pipe 300 is provided with a one-way valve M310 and a one-way valve N320, and the connecting pipe 400 is connected between the one-way valve M310 and the one-way valve N320, so that compared with the control by adopting an electromagnetic valve, the one-way valve is simpler and more reliable, has lower cost and can effectively reduce the installation cost and the maintenance cost; one end of the connecting pipe 400 far away from the bottom pressure equalizing pipe 300 is communicated with the air outlet pipe 520, so that the connecting mode is optimized, and the manufacturing cost is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A convenient PSA pressure equalization system, comprising:
the cavity A (100) is communicated with a first branch pipe (110) and a second branch pipe (120);
a cavity B (200) which is communicated with a third branch pipe (210) and a fourth branch pipe (220); the first branch pipe (110) is communicated with the third branch pipe (210) and is connected with an air inlet pipe (510); the second branch pipe (120) is communicated with the fourth branch pipe (220) and is connected with an air outlet pipe (520);
a bottom pressure equalizing pipe (300), two ends of which are respectively communicated with the first branch pipe (110) and the third branch pipe (210); the bottom pressure equalizing pipe (300) is provided with two check valves M (310) and N (320) which are arranged at intervals;
the two ends of the connecting pipe (400) are respectively communicated with the bottom pressure equalizing pipe (300) and the air outlet pipe (520), and the communication position of the connecting pipe (400) and the bottom pressure equalizing pipe (300) is positioned between the one-way valve M (310) and the one-way valve N (320); the connecting pipe (400) is provided with a control valve six (410).
2. The convenient PSA pressure equalization system of claim 1, wherein: the check valve M (310) is used for limiting the gas in the first branch pipe (110) to flow into the bottom pressure equalizing pipe (300) in a one-way mode, and the check valve N (320) is used for limiting the gas in the third branch pipe (210) to flow into the bottom pressure equalizing pipe (300) in a one-way mode.
3. The convenient PSA pressure equalization system of claim 1, wherein: the second branch pipe (120) is provided with a one-way valve X (121), and the one-way valve X (121) is used for limiting the gas of the second branch pipe (120) to flow to the gas outlet pipe (520) in one way; the fourth branch pipe (220) is provided with check valve Y (221), check valve Y (221) are used for limiting the gas of fourth branch pipe (220) to outlet duct (520) one-way flow.
4. A convenient PSA pressure equalization system according to claim 3, wherein: the junction of second branch pipe (120) fourth branch pipe (220) and outlet duct (520) is the junction, the junction set up in check valve X (121) with between check valve Y (221).
5. The convenient PSA pressure equalization system of claim 4, wherein: one end of the connecting pipe (400) far away from the bottom pressure equalizing pipe (300) is connected with the junction.
6. A convenient PSA pressure equalization system according to claim 1, wherein: be provided with top equalizer (530) and blowback pipe (540) between second branch spool (120) and fourth branch spool (220), top equalizer (530) are provided with control valve five (531), blowback pipe (540) are provided with the choke valve.
7. A convenient PSA pressure equalization system according to claim 1, wherein: a fifth branch pipe (550) is further arranged between the first branch pipe (110) and the third branch pipe (210), the fifth branch pipe (550) is provided with a third control valve (551) and a fourth control valve (552) which are arranged at intervals, and the third control valve (551) and the fourth control valve (552) are communicated with the atmosphere.
8. A convenient PSA pressure equalization system according to claim 1, wherein: first branch pipe (110) are provided with control valve (111), third branch pipe (210) are provided with control valve two (211), and intake pipe (510) are connected between control valve one (111) and control valve two (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223342477.7U CN218834058U (en) | 2022-12-13 | 2022-12-13 | Convenient PSA voltage-sharing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223342477.7U CN218834058U (en) | 2022-12-13 | 2022-12-13 | Convenient PSA voltage-sharing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218834058U true CN218834058U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223342477.7U Active CN218834058U (en) | 2022-12-13 | 2022-12-13 | Convenient PSA voltage-sharing system |
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| CN (1) | CN218834058U (en) |
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