JPH04290513A - Cooling device for pressure swing type gas separatior - Google Patents
Cooling device for pressure swing type gas separatiorInfo
- Publication number
- JPH04290513A JPH04290513A JP3054602A JP5460291A JPH04290513A JP H04290513 A JPH04290513 A JP H04290513A JP 3054602 A JP3054602 A JP 3054602A JP 5460291 A JP5460291 A JP 5460291A JP H04290513 A JPH04290513 A JP H04290513A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pressure swing
- swing type
- heat exchanger
- type gas
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 26
- 239000003463 adsorbent Substances 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、吸着塔内の吸着剤を均
一に冷却するようにした圧力スイング式ガス分離装置の
冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a pressure swing type gas separation device that uniformly cools an adsorbent in an adsorption tower.
【０００２】0002
【従来の技術】圧力スイング式ガス分離装置は、例えば
、図２に示すように、Ｎ２ （窒素）吸着剤１および脱
湿剤２を充填した吸着塔３に空気をブロワ４で加圧して
送り込み、空気中のＮ２ をＮ２ 吸着剤に吸着させ、
吸着されないＯ２ （酸素）ガスを吸着塔３上部より取
り出すことにより、Ｏ２ 富化ガスを得るものである。2. Description of the Related Art A pressure swing type gas separation apparatus, for example, as shown in FIG. , adsorb N2 in the air to a N2 adsorbent,
By taking out the unadsorbed O2 (oxygen) gas from the upper part of the adsorption tower 3, O2 enriched gas is obtained.
【０００３】一方、吸着剤１に吸着されたＮ２ は、真
空ポンプ５により吸着塔３内を減圧して吸着剤１より脱
着させ、系外へ放出するか又はＮ２富化ガスとして取り
出される。On the other hand, N2 adsorbed on the adsorbent 1 is depressurized in the adsorption tower 3 by a vacuum pump 5, and is desorbed from the adsorbent 1, and either released to the outside of the system or taken out as N2-enriched gas.
【０００４】このような圧力スイング式ガス分離装置に
おいて、低温域で前記吸脱着操作を行なう時に小さな量
で大きな吸着能力を発揮する吸着剤を使用する場合には
、図２に示すように、吸着塔３内に熱交換器６を配置し
てＮ２ 吸着剤１に入る前のガスを冷却している。[0004] In such a pressure swing type gas separation device, when using an adsorbent that exhibits a large adsorption capacity in a small amount when performing the adsorption/desorption operation in a low temperature range, as shown in FIG. A heat exchanger 6 is disposed within the column 3 to cool the gas before it enters the N2 adsorbent 1.
【０００５】この熱交換器６を含む冷却装置は、例えば
、図３に示すように構成される。図３は、１つの吸着塔
２３内に上下２段に熱交換器２６ａ，２６ｂを配置した
例を示す。この場合には、冷凍機２７を出た冷媒は、膨
張弁２８ａ，２８ｂを経て吸着塔２３内の熱交換器２６
ａ，２６ｂ内に入り、吸着剤２１及びガスを冷却したの
ち吸着塔２３外部で集合され、再び冷凍機２７に戻る。[0005] A cooling device including this heat exchanger 6 is constructed as shown in FIG. 3, for example. FIG. 3 shows an example in which heat exchangers 26a and 26b are arranged in two stages, upper and lower, in one adsorption tower 23. In this case, the refrigerant leaving the refrigerator 27 passes through the expansion valves 28a and 28b and enters the heat exchanger 26 in the adsorption tower 23.
a, 26b, cools the adsorbent 21 and the gas, collects it outside the adsorption tower 23, and returns to the refrigerator 27 again.
【０００６】[0006]
【発明が解決しようとする課題】前記のような従来の冷
却装置を備えた圧力スイング式ガス分離装置において、
装置が大型化してくると、図４に示すように、吸着塔３
３内に配置される熱交換器を製作上複数に分割せざるを
得なくなり、膨張弁３８を出た冷媒は複数の熱交換器３
６ａ，３６ｂ，３６ｃ，３６ｄに分配され、熱交換器を
出た後集合管３９にて集合されたのち冷凍機へ戻るよう
に構成される。[Problems to be Solved by the Invention] In a pressure swing type gas separation device equipped with a conventional cooling device as described above,
As the equipment becomes larger, as shown in Figure 4, the adsorption tower 3
The heat exchanger disposed in the heat exchanger 3 had to be divided into multiple parts due to manufacturing reasons, and the refrigerant that exited the expansion valve 38 was divided into multiple heat exchangers 3.
6a, 36b, 36c, and 36d, and after exiting the heat exchanger, they are collected in a collecting pipe 39, and then returned to the refrigerator.
【０００７】ところが、個々の熱交換器の製作精度，冷
媒分配，及び集合管の管路抵抗等により冷媒が各熱交換
器に均一に分配されず、吸着剤が均一に冷却されない不
具合がある。However, there is a problem in that the refrigerant is not evenly distributed to each heat exchanger due to manufacturing precision of each heat exchanger, refrigerant distribution, pipe resistance of the collecting pipe, etc., and the adsorbent is not uniformly cooled.
【０００８】本発明は、以上の問題点を解決することが
できる圧力スイング式ガス分離装置の冷却装置を提供し
ようとするものである。The present invention aims to provide a cooling device for a pressure swing type gas separation device that can solve the above problems.
【０００９】[0009]
【課題を解決するための手段】本発明は、吸着塔内に充
填された吸着剤を冷却して低温域で作動させる圧力スイ
ング式ガス分離装置において、吸着塔内に配置され冷媒
が分配されて流される分割された複数の熱交換器、及び
前記熱交換器を出た冷媒を集合する集合管と各熱交換器
の出口との間の連絡管の各々に設けられた冷媒均等分配
手段を備えた。[Means for Solving the Problems] The present invention provides a pressure swing type gas separation device that cools an adsorbent packed in an adsorption tower and operates in a low temperature range. A refrigerant equal distribution means is provided in each of a plurality of divided heat exchangers to be flowed, and a communication pipe between a collecting pipe that collects the refrigerant exiting the heat exchanger and an outlet of each heat exchanger. Ta.
【００１０】0010
【作用】本発明では、分割された複数の熱交換器を出た
冷媒を集合する集合管と各熱交換器の出口との間の連絡
管に設けられた冷媒均等分配手段により、各熱交換器へ
の冷媒分配が均一化され、これによって吸着塔内が均一
に冷却され、吸着剤の吸着能力が維持される。[Operation] In the present invention, the refrigerant uniform distribution means provided in the communication pipe between the collecting pipe that collects the refrigerant discharged from the plurality of divided heat exchangers and the outlet of each heat exchanger allows each heat exchanger to be The distribution of refrigerant to the vessels is made uniform, thereby uniformly cooling the interior of the adsorption tower and maintaining the adsorption capacity of the adsorbent.
【００１１】[0011]
【実施例】本発明の一実施例を、図１によって説明する
。本実施例は、図３に示すものと同様に、吸着塔内に分
割された複数の熱交換器をもつ圧力スイング式ガス分離
装置の冷却装置に係るものである。[Embodiment] An embodiment of the present invention will be explained with reference to FIG. This embodiment, like the one shown in FIG. 3, relates to a cooling device for a pressure swing type gas separation device having a plurality of divided heat exchangers within an adsorption tower.
【００１２】図１において、４３はＮ２ 吸着剤を充填
した吸着塔，４６ａ〜４６ｄは複数に分割され吸着塔４
３内に配置された熱交換器，４８は熱交換器４６ａ〜４
６ｄの上流側に設けられた膨張弁，５０ａ〜５０ｄは、
それぞれ各熱交換器４６ａ〜４６ｄの出口に連絡された
連絡管であり、連絡管５０ａ〜５０ｄは１本の冷媒集合
管４９に連絡され、同冷媒集合管４９は図示しない冷凍
機に連絡されている。５１ａ〜５１ｄは、それぞれ連絡
管５０ａ〜５０ｄに設けられた絞り弁である。In FIG. 1, 43 is an adsorption tower filled with N2 adsorbent, and 46a to 46d are divided into plural adsorption towers 4.
3, 48 is the heat exchanger 46a to 4.
The expansion valves 50a to 50d provided on the upstream side of 6d are
Each of the connecting pipes 50a to 50d is connected to an outlet of each of the heat exchangers 46a to 46d, and each of the connecting pipes 50a to 50d is connected to one refrigerant collecting pipe 49, which is connected to a refrigerator (not shown). There is. 51a to 51d are throttle valves provided in the communication pipes 50a to 50d, respectively.
【００１３】本実施例では、冷媒は冷凍機から膨張弁４
８を通って各熱交換器４６ａ〜４６ｄに分配され、熱交
換器４６ａ〜４６ｄを出たあと連絡管５０ａ〜５０ｄを
経て集合管４９によって集合され、再び冷凍機へ循環さ
れる。In this embodiment, the refrigerant is supplied from the refrigerator to the expansion valve 4.
8 and distributed to each heat exchanger 46a to 46d, and after exiting the heat exchangers 46a to 46d, it passes through communication pipes 50a to 50d, is collected by a collecting pipe 49, and is circulated again to the refrigerator.
【００１４】前記装置において、各熱交換器４６ａ〜４
６ｄを流れる冷媒の分配に不均一が生じたときには、絞
り弁５１ａ〜５１ｄの開度を調整して流れの悪い熱交換
器に対して開度を大きく、流れのよい熱交換器に対して
は開度を絞るようにして冷媒の分配を均一化する。[0014] In the above device, each heat exchanger 46a to 4
When uneven distribution of the refrigerant flowing through 6d occurs, the opening degrees of the throttle valves 51a to 51d are adjusted to increase the opening degree for heat exchangers with poor flow, and to increase the opening degree for heat exchangers with good flow. Equalize the distribution of refrigerant by narrowing the opening.
【００１５】このようにして、本実施例においては、各
熱交換器４６ａ〜４６ｄを流れる冷媒流量を均一化する
ことによって吸着塔４３内を均一に冷却することができ
、吸着剤の吸着能力を維持することができる。In this way, in this embodiment, by equalizing the flow rate of refrigerant flowing through each heat exchanger 46a to 46d, the inside of the adsorption tower 43 can be uniformly cooled, and the adsorption capacity of the adsorbent can be increased. can be maintained.
【００１６】なお、本実施例における絞り弁５１ａ〜５
１ｄの開度の調整は手動又は自動のいづれかによって行
なうことができる。また、前記絞り弁５１ａ〜５１ｄの
代わりに可変オリフィス，取替式固定オリフィスを装着
するようにしてもよい。Note that the throttle valves 51a to 5 in this embodiment
The opening degree of 1d can be adjusted either manually or automatically. Further, a variable orifice or a replaceable fixed orifice may be installed in place of the throttle valves 51a to 51d.
【００１７】[0017]
【発明の効果】本発明は、吸着塔内に配置され冷媒が分
配して流される分割された複数の熱交換器を出た冷媒を
集合する集合管と各熱交換の出口との間の連絡管の各々
に、冷媒均等分配手段を設けたことにより、各熱交換器
に均一に冷媒を分配して吸着剤の均一冷却を行なうこと
ができ、吸着剤の吸着性能を維持することができる。ま
た、これによって、装置の設計に自由度が大きくなり、
熱交換器の分割方法についても選択枝が多くなるととも
に配管設計上の制約も減少する効果がある。Effects of the Invention The present invention provides communication between a collecting pipe that collects refrigerant exiting from a plurality of divided heat exchangers arranged in an adsorption tower and in which the refrigerant is distributed and distributed, and the outlet of each heat exchanger. By providing the refrigerant equal distribution means in each of the tubes, the refrigerant can be uniformly distributed to each heat exchanger to uniformly cool the adsorbent, and the adsorption performance of the adsorbent can be maintained. This also allows greater freedom in device design,
This has the effect of increasing the number of options for dividing the heat exchanger and reducing restrictions on piping design.
【図１】本発明の一実施例の平面図である。FIG. 1 is a plan view of an embodiment of the present invention.
【図２】従来の圧力スイング式ガス分離装置の系統図で
ある。FIG. 2 is a system diagram of a conventional pressure swing type gas separation device.
【図３】従来の圧力スイング式ガス分離装置の冷却装置
の説明図である。FIG. 3 is an explanatory diagram of a cooling device of a conventional pressure swing type gas separation device.
【図４】複数に分割された熱交換器をもつ従来の圧力ス
イング式ガス分離装置の冷却装置の平面図である。FIG. 4 is a plan view of a cooling device for a conventional pressure swing type gas separation device having a plurality of divided heat exchangers.
４３ 吸着塔 ４６ａ〜４６ｄ 熱交換器 ４８ 膨張弁 ４９ 冷媒集合管 ５０ａ〜５０ｄ 連絡管 ５１ａ〜５１ｄ 絞り弁 43 Adsorption tower 46a-46d Heat exchanger 48 Expansion valve 49 Refrigerant collecting pipe 50a-50d Connecting pipe 51a-51d Throttle valve
Claims (1)
て低温域で作動させる圧力スイング式ガス分離装置にお
いて、吸着塔内に配置され冷媒が分配されて流される分
割された複数の熱交換器、及び熱交換器を出た冷媒を集
合する集合管と各熱交換器の出口との間の連絡管の各々
に設けられた冷媒均等分配手段を備えたことを特徴とす
る圧力スイング式ガス分離装置の冷却装置。Claim 1: In a pressure swing type gas separation device that cools an adsorbent packed in an adsorption tower and operates in a low temperature range, a plurality of divided heat sources are placed in the adsorption tower and a refrigerant is distributed and flowed. A pressure swing type, characterized in that it is equipped with a refrigerant equal distribution means provided in each of the exchanger and the communication pipe between the collecting pipe that collects the refrigerant exiting the heat exchanger and the outlet of each heat exchanger. Cooling device for gas separation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3054602A JPH04290513A (en) | 1991-03-19 | 1991-03-19 | Cooling device for pressure swing type gas separatior |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3054602A JPH04290513A (en) | 1991-03-19 | 1991-03-19 | Cooling device for pressure swing type gas separatior |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04290513A true JPH04290513A (en) | 1992-10-15 |
Family
ID=12975283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3054602A Withdrawn JPH04290513A (en) | 1991-03-19 | 1991-03-19 | Cooling device for pressure swing type gas separatior |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04290513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861050A (en) * | 1996-11-08 | 1999-01-19 | Store Heat And Produce Energy, Inc. | Thermally-managed fuel vapor recovery canister |
-
1991
- 1991-03-19 JP JP3054602A patent/JPH04290513A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861050A (en) * | 1996-11-08 | 1999-01-19 | Store Heat And Produce Energy, Inc. | Thermally-managed fuel vapor recovery canister |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980514 |