CN113731107B - Online regeneration system - Google Patents
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- CN113731107B CN113731107B CN202111180356.4A CN202111180356A CN113731107B CN 113731107 B CN113731107 B CN 113731107B CN 202111180356 A CN202111180356 A CN 202111180356A CN 113731107 B CN113731107 B CN 113731107B
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- 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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
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Abstract
The invention is suitable for the helium refrigeration field, and discloses an online regeneration system which comprises an adsorber bypass connected in parallel with an adsorber, an adsorber air inlet valve, an adsorber air outlet valve, a regeneration air inlet valve arranged between the adsorber and the adsorber air outlet valve, a rewarming heater arranged between the adsorber air inlet valve and the adsorber, a vacuum pump and a tail gas recovery device which are respectively connected with an air outlet of the rewarming heater, a regeneration air outlet valve, a tail gas recovery valve, a first pressure sensor for measuring the internal pressure of the adsorber, a second pressure sensor for measuring the pressure of an inlet side of the vacuum pump, a first temperature sensor for measuring the temperature of the adsorber and a second temperature sensor for measuring the temperature of the tail gas of an outlet side of the rewarming heater, wherein the adsorber air inlet valve, the adsorber air outlet valve and the adsorber bypass are arranged in a cold box, and other parts are arranged outside the cold box, so that the number of equipment in the cold box and the complexity of a pipeline system are reduced.
Description
Technical Field
The invention relates to the technical field of helium refrigeration, in particular to an online regeneration system of an absorber suitable for a helium refrigeration system.
Background
The boiling point of liquid helium is-269 c and at such low temperatures, the other various gases become not only liquid, but even mostly solid. In order to prevent the freezing blockage of the heat exchanger flow channel, pipeline and valve or the damage of solid impurities to the turbine caused by the solidification of other mediums under the low-temperature working condition, a helium liquefying or refrigerating system needs to be provided with one or more stages of adsorbers to purify helium, for example, the primary adsorbers usually remove most of impurity gases such as oxygen, nitrogen, hydrocarbon and the like, and the secondary adsorbers remove impurity gases such as hydrogen, neon and the like. Under long-time continuous operation, especially for helium liquefaction mode, the adsorber exists the adsorption saturation state, once adsorb the saturation, impurity gas can't continue to be got rid of again, leads to helium liquefaction pipe system to be frozen stifled easily, under this condition, helium liquefier can't provide qualified liquid helium or refrigerating output any more, and because freeze the pressure that stifled results in and rise, there is the risk of system superpressure, need whole set device rewarming, purify, carry out cooling process and start again, whole rewarming and restart process cause a large amount of waste and the high energy consumption of helium emission. In some helium liquefaction or helium refrigeration processes, the absorbers are arranged one by one to be two sets, and two sets of automatic switching valves are arranged, so that the online regeneration of the helium absorbers can be realized, and the process of recovering temperature and recovering temperature of the whole system is avoided. However, two sets of adsorbers are required to be arranged in each stage of adsorbers in the process, and each set of adsorber inlet and outlet is required to be matched with an automatic switching valve, so that the number of equipment in the cold box is increased, the number of low-temperature valves is increased, a pipeline system is complex, the size of the whole cold box is increased, and the equipment investment cost and the occupied area of the cold box are increased.
Disclosure of Invention
The invention aims to provide an online regeneration system, which aims to solve the technical problems that the equipment investment cost and the occupied area of a cold box are increased due to the fact that a standby adsorber and a plurality of low-temperature valves are needed to be added in the cold box in the existing online regeneration system.
In order to achieve the above purpose, the invention provides the following scheme:
an on-line regeneration system is applicable to an absorber of a helium refrigerating system, the absorber is arranged in a cold box, the on-line regeneration system comprises an absorber bypass connected with the absorber in parallel, an absorber air inlet valve arranged between an upper heat exchanger and the absorber, an absorber air outlet valve arranged between the absorber and a lower heat exchanger, a regenerated air inlet valve arranged between the absorber and the absorber air outlet valve, a rewarming heater arranged between the absorber air inlet valve and the absorber and used for heating tail gas, a vacuum pump connected with an air outlet of the rewarming heater, a tail gas recovery device arranged between the vacuum pump and the rewarming heater, a regenerated air exhaust valve arranged between the tail gas recovery device and the rewarming heater, a first pressure sensor used for measuring the internal pressure of the absorber, a second pressure sensor used for measuring the temperature of the absorber, a second temperature sensor used for measuring the temperature of an outlet side of the rewarming heater, a second temperature sensor used for measuring the temperature of the outlet side of the rewarming heater, a regenerated air exhaust valve arranged between the vacuum pump and the absorber air outlet valve, a first pressure sensor arranged between the exhaust valve and the rewarming heater, a second pressure sensor arranged between the exhaust valve and the absorber air inlet valve, a bypass connected with the absorber air inlet valve arranged in parallel, wherein the bypass is arranged at one end of the absorber air inlet valve and the bypass The rewarming heater, the vacuum pump and the tail gas recovery device are all arranged outside the cold box.
Preferably, the helium refrigeration system is provided with at least two stages of adsorbers, the vacuum pump, the second pressure sensor and the tail gas recovery device form a shared unit, the adsorber inlet valve, the adsorber outlet valve, the adsorber bypass, the regeneration gas inlet valve, the rewarming heater, the tail gas recovery valve, the regeneration gas outlet valve, the first pressure sensor, the first temperature sensor and the second temperature sensor form independent units, each stage of adsorber is provided with an independent unit, and at least two stages of adsorbers use a shared unit.
Preferably, the adsorber inlet valve, the adsorber outlet valve and the bypass valve are cryogenic valves.
Preferably, the regenerated gas inlet valve and the regenerated gas outlet valve are both normal temperature valves.
The online regeneration system provided by the invention has the following advantages:
firstly, the online regeneration system can realize online regeneration of the absorber under the condition that only an absorber bypass, an absorber air inlet valve and an absorber air outlet valve are added, thereby reducing the number of devices in the cold box and the complexity of a pipeline system, placing the regenerated gas air inlet valve, the regenerated gas air outlet valve, a vacuum pump and a rewarming heater in a normal temperature section, and reducing the investment cost of the devices and the design complexity of the cold box.
Secondly, the on-line regeneration system is provided with the vacuum pump, and the vacuum pump is used for vacuumizing the adsorber, so that the regeneration speed is increased, and the regeneration depth of the adsorbent is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an online regeneration system according to an embodiment of the present invention.
Reference numerals illustrate:
10. an adsorber inlet valve; 20. an adsorber outlet valve; 30. an adsorber bypass; 31. a bypass conduit; 32. a bypass valve; 40. a regeneration gas inlet valve; 50. a reheat heater; 60. a tail gas recovery valve; 70. a regeneration gas exhaust valve; 80. a vacuum pump; 90. a tail gas recovery device; 100. an adsorber; 110. a primary heat exchanger; 120. the next stage heat exchanger.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
As shown in fig. 1, an on-line regeneration system according to an embodiment of the present invention is applicable to an adsorber 100 of a helium refrigeration system, where the adsorber 100 of the helium refrigeration system is disposed inside a cold box, and the helium refrigeration system is provided with one-stage or two-stage or multi-stage adsorbers, and the on-line regeneration system can be used by the one-stage adsorber or the two-stage or multi-stage adsorber.
Referring to fig. 1, the on-line regeneration system according to the embodiment of the present invention includes an adsorber bypass 30 connected in parallel with an adsorber 100, an inlet valve 10 provided between an upper heat exchanger and the adsorber of the adsorber 100, an adsorber outlet valve 20 provided between the adsorber 100 and a lower heat exchanger, a regeneration gas inlet valve 40 provided between the adsorber 100 and the adsorber outlet valve 20, a reheat heater 50 provided between the adsorber inlet valve 10 and the adsorber 100 and used for heating exhaust gas, a vacuum pump 80 connected to an outlet of the reheat heater 50, an exhaust gas recovery device 90 connected to an outlet of the reheat heater 50, a regeneration gas exhaust valve 70 provided between the vacuum pump 80 and the reheat heater 50, an exhaust gas recovery valve 60 provided between the exhaust gas recovery device 90 and the reheat heater 50, a first pressure sensor (not shown) for measuring the pressure inside the adsorber 100, a first temperature sensor (not shown) for measuring the temperature of the adsorber 100 at an inlet side, and a second temperature sensor (not shown) for measuring the temperature of the exhaust gas at an outlet side of the reheat heater 50, the regenerated gas inlet valve 40 is used for connecting a regenerated gas supply device to supply regenerated helium gas to an online regeneration system, the adsorber bypass 30 comprises a bypass pipeline 31 connected with the adsorber 100 in parallel and a bypass valve 32 arranged on the bypass pipeline 31, one end of the bypass pipeline 31 is used for connecting a primary heat exchanger 110, the other end of the bypass pipeline 31 is used for connecting a next-stage heat exchanger 120, the adsorber bypass 30 is arranged in a cold box, and the regenerated gas inlet valve 40, the regenerated gas exhaust valve 70, the reheat heater 50, the vacuum pump 80 and the exhaust gas recovery apparatus 90 are all disposed outside the cold box.
Optionally, the adsorber inlet valve 10, adsorber outlet valve 20, and bypass valve 32 are cryogenic valves.
Optionally, the regenerated gas inlet valve and the regenerated gas outlet valve are both normal temperature valves.
The adsorber 100 generally considers an adsorption period of 4-6 months during design and calculation, and needs to realize online regeneration after adsorption saturation, so that normal operation of the device is not affected. The adsorber inlet valve 10 and adsorber outlet valve 20 are closed during regeneration and the adsorber bypass 30 is opened to ensure continuous production of helium refrigeration systems while the adsorber 100 is quickly regenerated on-line and the regeneration process can be completed in a short period of time (e.g., within 6 hours). Because the adsorber 100 mainly functions to desorb impurity gases (oxygen, nitrogen, hydrogen, neon, etc.), the desorption of adsorbed water vapor is not considered, so that the regeneration temperature is low, and the regeneration of the adsorber 100 can be realized by rewarming to room temperature and stabilizing for a certain time. And simultaneously, the deep regeneration is performed by adopting a vacuumizing method, so that the regeneration process of the adsorber 100 is quickened. The re-heating heater 50 is mainly used for re-heating the low-temperature helium gas released at the beginning of regeneration, and reaches the condition of recovering the helium gas by re-heating. After regeneration is completed, the adsorber 100 may be purged with a small flow of helium from the upstream heat exchanger to cool down, and after approaching the temperature zone corresponding to normal operation, the adsorber bypass 30 is closed, and the adsorber inlet valve 10 and the adsorber outlet valve 20 are opened, so that the adsorber 100 enters a continuous operation state. Helium gas discharged in the regeneration process can be recovered to a dirty helium recovery system through the tail gas recovery device 90, so that the waste of helium resources is reduced.
It will be appreciated that because the adsorber 100 is operated for a longer period of time before regeneration is required and the regeneration time is short, normal operation of the helium refrigeration system may be ensured by the adsorber bypass 30 operating in place of the adsorber 100 during on-line regeneration of the adsorber 100.
The working flow of the online regeneration system of the embodiment of the invention is specifically as follows:
step S10: if the upstream-downstream pressure difference of the adsorber 100 is detected to increase and the far delay exceeds the set value, the adsorber 100 is regenerated online, the adsorber inlet valve 10 and the adsorber outlet valve 20 are closed, and the bypass valve 32 is opened simultaneously.
Step S20: the high-pressure helium before entering the cold box is used as the regenerated gas, the regenerated gas inlet valve 40 and the tail gas recovery valve 60 are synchronously opened, normal-temperature helium purging regeneration is carried out, meanwhile, the rewarming heater 50 is started, the recovered tail gas is ensured to meet the temperature requirement, and when the second temperature sensor measures that the temperature of the tail gas at the outlet side of the rewarming heater 50 reaches the normal temperature, the rewarming heating of the tail gas is not needed.
Step S30: the temperature of the adsorber 100 is monitored during the purging process, and when the first temperature sensor measures that the temperature of the adsorber 100 reaches normal temperature, the regeneration gas inlet valve 40 is closed by a certain time (for example, 5 to 10 minutes) delay. The adsorber 100 continues to depressurize through the exhaust gas recovery system, and when the first pressure sensor measures that the pressure of the adsorber 100 reaches the micro positive pressure, the exhaust gas recovery valve 60 is closed, the regenerated gas exhaust valve 70 is opened, and the vacuum pump 80 is started at the same time, so that the adsorber 100 starts to be vacuumized and regenerated.
Step S40: when the second pressure sensor measures that the inlet pressure of the vacuum pump 80 reaches the negative pressure, the vacuum regeneration gas exhaust valve 70 is closed, the operation of the vacuum pump 80 is suspended, and meanwhile, the regeneration gas inlet valve 40 is opened, and the adsorber 100 is continuously pressurized.
The steps S30 and S40 are repeated, and in general, the helium gas adsorber 100 of the adsorption period of 4 to 6 months needs to repeat the steps S30 and S40 about 3 times. If the adsorber 100 is designed to have a longer adsorption period, the number of repetitions may be increased, and if the adsorber 100 is designed to have a shorter adsorption period, the number of regenerations may be reduced.
If there are other adsorbers in the helium liquefier or the helium refrigerator, a similar online regeneration process can be set, and the vacuum pump 80, the second pressure sensor and the tail gas recovery device 90 can be used in common.
In step S20, high purity helium in an independent high purity helium steel cylinder may be used as the regeneration gas, if high purity helium in an independent high purity helium steel cylinder is used as the regeneration gas, the exhaust gas recovery valve 60 is opened first, the exhaust gas rewarming heater 50 is started at the same time, the exhaust gas recovery is guaranteed to meet the recovery temperature requirement, and the adsorber 100 is decompressed at the same time until the first pressure sensor measures that the internal pressure of the adsorber 100 is not higher than the pressure of the regeneration gas, then the regeneration helium valve is opened for normal temperature helium purging regeneration, and when the second temperature sensor measures that the exhaust gas temperature at the outlet side of the rewarming heater 50 reaches normal temperature, the exhaust gas rewarming heating is not needed.
The use of high pressure helium prior to entering the cold box ensures that the regeneration gas pressure is higher than the adsorber 100 pressure without having to depressurize the adsorber 100 first. However, if the high-purity helium gas in the high-purity helium gas cylinder is used as the regeneration gas, the pressure in the cylinder cannot be ensured, and the pressure of the adsorber 100 needs to be released to a lower value before the cylinder is communicated, so that the pressure in the adsorber 100 is prevented from being higher than the pressure in the cylinder.
The online regeneration system of the embodiment of the invention has the following advantages:
first, the online regeneration system according to the embodiment of the present invention realizes online regeneration of the adsorber 100 with only the adsorber inlet valve 10, the adsorber outlet valve 20, and the adsorber bypass 30 added in the cold box, reduces the number of devices and complexity of the piping system in the cold box, and reduces the investment cost of the devices and the design complexity of the cold box by placing the vacuum pump 80 and the reheat heater 50 in the normal temperature section.
Second, the on-line regeneration system according to the embodiment of the present invention is provided with the vacuum pump 80, and the adsorber 100 is vacuumized by the vacuum pump 80, so that the regeneration speed is increased, and the regeneration depth of the adsorbent is enhanced.
When the helium refrigeration system includes multiple adsorbers, the vacuum pump 80, the second pressure sensor, and the tail gas recovery device 90 form a common unit, and the adsorber inlet valve 10, the adsorber outlet valve 20, the adsorber bypass 30, the regeneration gas inlet valve 40, the reheat heater 50, the tail gas recovery valve 60, the regeneration gas outlet valve 70, the first pressure sensor, the first temperature sensor, and the second temperature sensor form separate units, each adsorber is configured with one separate unit, and the multiple adsorbers use one common unit, i.e., the adsorbers in different stages of the same refrigeration system share the vacuum pump 80, the second pressure sensor, and the tail gas recovery device 90, so that investment cost and occupied size are reduced.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (4)
1. An on-line regeneration system is applicable to an absorber of a helium refrigerating system, and is arranged in a cold box, and is characterized in that the on-line regeneration system comprises an absorber bypass connected with the absorber in parallel, an absorber air inlet valve arranged between a superior heat exchanger and the absorber, an absorber air outlet valve arranged between the absorber and a subordinate heat exchanger, a regenerated air inlet valve arranged between the absorber and the absorber air outlet valve, a rewarming heater arranged between the absorber air inlet valve and the absorber and used for heating tail gas, a vacuum pump connected with an air outlet of the rewarming heater, a tail gas recovery device connected with an air outlet of the rewarming heater, a regenerated air exhaust valve arranged between the vacuum pump and the rewarming heater, a tail gas recovery valve arranged between the tail gas recovery device and the rewarming heater, a first pressure sensor used for measuring internal pressure of the absorber, a second pressure sensor used for measuring pressure on an inlet side of the vacuum pump, a first temperature sensor used for measuring temperature of the absorber, a second temperature sensor used for measuring temperature on an outlet side of the rewarming heater, a regenerated air exhaust valve connected with an air inlet valve arranged in parallel, an air inlet pipeline connected with the absorber air inlet pipeline, and a bypass arranged at one end of the bypass is arranged between the absorber air inlet valve and the bypass The rewarming heater, the vacuum pump and the tail gas recovery device are all arranged outside the cold box.
2. The on-line regeneration system of claim 1, wherein the adsorber is at least two stages of adsorbers, the vacuum pump, the second pressure sensor, and the exhaust gas recovery device comprise a common unit, the adsorber inlet valve, the adsorber outlet valve, the adsorber bypass, the regeneration gas inlet valve, the reheat heater, the exhaust gas recovery valve, the regeneration gas outlet valve, the first pressure sensor, the first temperature sensor, and the second temperature sensor comprise separate units, each stage of adsorber is configured with a separate unit, and at least two stages of adsorbers use a common unit.
3. The on-line regeneration system of claim 1, wherein the adsorber inlet valve, the adsorber outlet valve, and the bypass valve are cryogenic valves.
4. The on-line regeneration system of claim 1, wherein the regeneration gas inlet valve and the regeneration gas outlet valve are both ambient temperature valves.
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| CN114777411A (en) * | 2022-04-01 | 2022-07-22 | 中国科学院理化技术研究所 | Hydrogen liquefying device with regeneration pipeline |
| CN114791202B (en) * | 2022-05-07 | 2022-11-22 | 中国科学院理化技术研究所 | Super-flow helium refrigerator with adsorber regeneration pipeline |
| CN115193429A (en) * | 2022-08-01 | 2022-10-18 | 北京中科富海低温科技有限公司 | Helium adsorber regeneration system and method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297120A (en) * | 1988-05-25 | 1989-11-30 | Hitachi Ltd | Regeneration of adsorption device for refining helium gas |
| JPH05245329A (en) * | 1992-03-02 | 1993-09-24 | Nippon Sanso Kk | Gaseous helium purifier and operating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827480B2 (en) * | 1979-02-14 | 1983-06-09 | 株式会社日立製作所 | Dehumidification tower regeneration method for rare gas hold-up equipment |
| RU2239489C2 (en) * | 2002-10-21 | 2004-11-10 | Открытое акционерное общество криогенного машиностроения | Method and device for moisture removal from adsorber |
| CN103405989B (en) * | 2013-08-19 | 2017-02-08 | 上海启元空分技术发展股份有限公司 | Control cabinet device of air type purifier device and control method thereof |
| CN107569970A (en) * | 2017-10-19 | 2018-01-12 | 北京华福工程有限公司 | A kind of economic convenient molecular sieve adsorption separate pipeline device |
| CN111482164A (en) * | 2020-04-24 | 2020-08-04 | 武汉旭日华环保科技股份有限公司 | Online adsorption material activation device and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297120A (en) * | 1988-05-25 | 1989-11-30 | Hitachi Ltd | Regeneration of adsorption device for refining helium gas |
| JPH05245329A (en) * | 1992-03-02 | 1993-09-24 | Nippon Sanso Kk | Gaseous helium purifier and operating method thereof |
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