JPH057323U - Pressure swing type gas separation device - Google Patents
Pressure swing type gas separation deviceInfo
- Publication number
- JPH057323U JPH057323U JP5252691U JP5252691U JPH057323U JP H057323 U JPH057323 U JP H057323U JP 5252691 U JP5252691 U JP 5252691U JP 5252691 U JP5252691 U JP 5252691U JP H057323 U JPH057323 U JP H057323U
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- Prior art keywords
- adsorption tower
- raw material
- valve
- valves
- gas separation
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Abstract
(57)【要約】
【目的】 圧力スイング式ガス分離装置における吸着塔
への原料ガス供給系のバルブ数を少させ、これに伴って
配管を簡単化する。
【構成】 圧力スイング式ガス分離装置において、原料
ガスを吸着塔１，２，３又は４へ供給するバルブ１１，
２１，３１，４１を各吸着塔毎に１個設け、自然吸気配
管８とブロワ空気配管９を前記バルブに交互に切換えて
接続する手段（切換バルブ１２１，１２２，３４１，３
４２）を設けた。
(57) [Summary] [Objective] To reduce the number of valves in the feed gas supply system to the adsorption tower in the pressure swing gas separation device, and to simplify the piping accordingly. [Structure] In a pressure swing gas separation apparatus, a valve 11 for supplying a raw material gas to an adsorption tower 1, 2, 3 or 4
One means 21, 31, 41 is provided for each adsorption tower, and means for alternately connecting and connecting the naturally aspirating pipe 8 and the blower air pipe 9 to the above valves (switching valves 121, 122, 341, 3)
42) was provided.
Description
【０００１】[0001]
本考案は、圧力スイング式（以下ＰＳＡという）ガス分離装置に関する。 The present invention relates to a pressure swing type (hereinafter referred to as PSA) gas separation device.
【０００２】[0002]
図２に示す空気中から酸素を分離濃縮して酸素富化ガスを製造する従来のＰＳ Ａガス分離装置は、窒素の吸着剤を内蔵し並列に配置された４塔の吸着塔１〜４ を具え、各吸着塔においては、図３に示すように、均圧（Ｅ）、自然吸気（ＮＡ ）、ブロワ吸気（Ａ）、均圧（Ｅ）、脱着（Ｄ）の工程を順次、かつ互いに位相 を異らせてくり返えし、連続的に酸素富化ガスを製造するようにしている。 The conventional PSA gas separation apparatus for producing oxygen-enriched gas by separating and concentrating oxygen from the air shown in FIG. 2 has four adsorbing towers 1 to 4 arranged in parallel and containing a nitrogen adsorbent. In each adsorption tower, as shown in FIG. 3, the steps of pressure equalization (E), natural suction (NA), blower suction (A), pressure equalization (E), desorption (D) are sequentially and mutually performed. The phase is repeated and the oxygen-enriched gas is continuously produced.
【０００３】 即ち、吸着塔の自然吸気工程では、減圧状態の吸着塔内に原料空気が吸引され る。That is, in the natural suction process of the adsorption tower, the raw material air is sucked into the adsorption tower in a depressurized state.
【０００４】 吸着塔のブロワ吸気工程では、ブロワ５によって原料空気を吸気塔内へ送って 加圧状態にし、吸着剤に空気中の窒素ガスを吸着させると共に、吸着塔頂部のバ ルブを開いて吸着剤を流過した酸素富化ガスが製品ガスとして取出される。In the blower intake process of the adsorption tower, the blower 5 sends the raw material air into the intake tower to make it under pressure, adsorb the nitrogen gas in the air to the adsorbent, and open the valve at the top of the adsorption tower. The oxygen-enriched gas that has passed through the adsorbent is taken out as product gas.
【０００５】 吸着塔の脱着工程では、吸着塔内を真空ポンプ６又は７によって減圧（真空） 状態にして、吸着剤より吸着されていた窒素ガスを脱着して、吸着剤の再生が行 なわれる。In the adsorption column desorption process, the adsorption column is depressurized (vacuum) by a vacuum pump 6 or 7 to desorb the nitrogen gas adsorbed from the adsorbent, thereby regenerating the adsorbent. .
【０００６】 吸着塔の均圧工程では、吸着塔１，２又は吸着塔３，４の塔頂部をバルブを介 して連通し、一方の塔頂部に残留する酸素富化ガスを他方の塔に回収する。In the pressure equalization step of the adsorption tower, the tower tops of the adsorption towers 1 and 2 or the adsorption towers 3 and 4 are communicated with each other through a valve, and the oxygen-enriched gas remaining at one tower top is fed to the other tower. to recover.
【０００７】 前記の各吸着塔においては、塔下方に自然吸気用バルブ、ブロワ吸気用バルブ 及び脱着用バルブが設けられ、原料空気を各吸着塔の下部へ供給し、また脱着剤 から脱着された窒素ガスを各吸着塔の下部から排出するようになっている。In each of the adsorption towers, a natural intake valve, a blower intake valve, and a desorption valve are provided below the tower to supply raw material air to the lower part of each adsorption tower and desorb from the desorbent. Nitrogen gas is discharged from the lower part of each adsorption tower.
【０００８】 図２において前記の各吸着塔の自然吸気用バルブをａ、ブロワ吸気用バルブを ｂ、脱着用バルブをｃでそれぞれ示し、それぞれのバルブに接続される自然吸気 配管をｄ、ブロワ吸気配管をｅ、脱着配管をｆでそれぞれ示す。In FIG. 2, a natural intake valve of each adsorption tower is shown by a, a blower intake valve is shown by b, a desorption valve is shown by c, and a natural intake pipe connected to each valve is shown by d and a blower intake is shown. The piping is indicated by e, and the desorption piping is indicated by f.
【０００９】[0009]
以上のような従来のＰＳＡガス分離装置では、各吸着塔の下方の部分において は、死容積を少なくするためにできるだけ吸着塔に近い位置にそれぞれ自然吸気 用バルブ、ブロワ吸気用バルブ、及び脱着用バルブを配置しなければならず、ま たそれぞれのバルブと接続する自然吸気配管、ブロワ吸気配管及び脱着配管を吸 着塔下部まで導く必要があった。 In the conventional PSA gas separation device as described above, in the lower part of each adsorption tower, a natural intake valve, a blower intake valve, and a desorption valve are installed as close to the adsorption tower as possible in order to reduce the dead volume. It was necessary to arrange valves, and it was necessary to guide the natural intake pipe, blower intake pipe and desorption pipe connected to each valve to the lower part of the adsorption tower.
【００１０】 従って、各吸着塔の下方の部分において、バルブ及び配管が非常に輻湊し、設 計上及び製作上多くの手間を要する不具合があった。Therefore, in the lower part of each adsorption tower, there was a problem that valves and pipes were extremely congested, which required a lot of time and labor for designing and manufacturing.
【００１１】 本考案は、前記の不具合点を解消することができるＰＳＡガス分離装置を提供 しようとするものである。The present invention is intended to provide a PSA gas separation device capable of solving the above-mentioned problems.
【００１２】[0012]
本考案は、吸着塔内の減圧により吸着塔内の吸着剤を再生した後、吸着塔内の 減圧のエネルギを利用して原料ガスを吸着塔内に吸引する第１の工程と、ブロワ により原料ガスを吸着塔に供給する第２の工程とを行なうＰＳＡガス分離装置に おいて、吸着塔に原料ガスを供給する１つのバルブと、同バルブに、前記第１の 工程で原料ガスを供給する配管を、前記第２の工程で原料ガスを供給する配管を 、交互に切換え接続する手段を設けている。 In the present invention, after the adsorbent in the adsorption tower is regenerated by the reduced pressure in the adsorption tower, the first step of sucking the raw material gas into the adsorption tower by utilizing the energy of the reduced pressure in the adsorption tower and the raw material by the blower In the PSA gas separation apparatus that performs the second step of supplying gas to the adsorption tower, one valve that supplies the raw material gas to the adsorption tower and the raw material gas that is supplied to the same valve in the first step A means for alternately connecting and connecting the piping to supply the raw material gas in the second step is provided.
【００１３】[0013]
本考案では、吸着塔内の減圧のエネルギを利用して原料ガスを吸引する第１の 工程においては、原料ガスを供給する配管が吸着塔の原料ガスを供給するバルブ に接続される。また、ブロワによって原料ガスを吸着塔に供給する第２の工程に おいては、ブロワを経て原料ガスを供給する配管に、前記の吸着塔の原料ガスを 供給するバルブが接続される。 In the present invention, in the first step of sucking the raw material gas by utilizing the energy of the decompression in the adsorption tower, the pipe for supplying the raw material gas is connected to the valve for supplying the raw material gas in the adsorption tower. Further, in the second step of supplying the raw material gas to the adsorption tower by the blower, the valve for supplying the raw material gas of the adsorption tower is connected to the pipe for supplying the raw material gas through the blower.
【００１４】 このように、吸着塔に原料ガスを供給するバルブを１つにしたことによって、 吸着塔におけるバルブ及び原料ガスを供給する配管が簡素化され、設計・製作上 の手間が減少し、かつ、バルブの数を減らすことができると共にメインテナンス 費用が節減される。As described above, by providing one valve for supplying the raw material gas to the adsorption tower, the valve in the adsorption tower and the piping for supplying the raw material gas are simplified, and the labor for designing and manufacturing is reduced. In addition, the number of valves can be reduced and maintenance costs can be reduced.
【００１５】[0015]
本考案の一実施例を、図１によって説明する。１〜４は、図２に示す従来のＰ ＳＡガス分離装置と同様に並列に配置され、窒素吸着剤を内蔵した４塔の吸着塔 である。１１，２１，３１，４１は、各吸着塔の下方に設けられ各吸着塔に原料 空気を供給するバルブ、１３，２３，３３，４３は、各吸着塔の下方に設けられ た各吸着塔の脱着用のバルブである。 One embodiment of the present invention will be described with reference to FIG. 1 to 4 are four adsorption towers arranged in parallel as in the conventional PSA gas separation apparatus shown in FIG. 2 and having a nitrogen adsorbent incorporated therein. 11, 21, 31, 41 are valves provided below the respective adsorption towers to supply the raw material air to the respective adsorption towers, and 13, 23, 33, 43 are the respective adsorption towers provided under the respective adsorption towers. It is a detachable valve.
【００１６】 自然吸気配管８は分岐して配管８−１，８−２となり、同配管８−１，８−２ にはそれぞれ切換バルブ１２１，３４１が設けられている。ブロワをもつブロワ 吸気配管９は分岐して配管９−１，９−２となり、同配管９−１，９−２にはそ れぞれ切換バルブ１２２，３４２が設けられている。前記配管８−１，９−１は 切換バルブ１２１，１２２の下流側で合流して配管５０となり、同配管５０はバ ルブ１１，２１を介して前記吸着塔１，２の下部に接続されている。また、前記 配管８−２，９−２は切換バルブ３４１，３４２の下流側で合流して配管５１と なり、同配管５１はバルブ３１，４１を介して前記吸着塔３，４の下部に接続さ れている。以上の構成によって、前記切換バルブ１２１，３４１及び切換バルブ １２２，３４２は、これらを開閉することによって、前記自然吸気配管８とブロ ワ吸気配管９が配管５０，５１に選択的に接続される。The natural intake pipe 8 is branched into pipes 8-1 and 8-2, and switching pipes 121 and 341 are provided in the pipes 8-1 and 8-2, respectively. The blower intake pipe 9 having a blower is branched into pipes 9-1 and 9-2, and switching pipes 122 and 342 are provided in the pipes 9-1 and 9-2, respectively. The pipes 8-1 and 9-1 join together on the downstream side of the switching valves 121 and 122 to form a pipe 50. The pipe 50 is connected to the lower portions of the adsorption towers 1 and 2 via valves 11 and 21. There is. Further, the pipes 8-2 and 9-2 join together on the downstream side of the switching valves 341 and 342 to form a pipe 51, which is connected to the lower part of the adsorption towers 3 and 4 via the valves 31 and 41. It is being touched. With the above configuration, the switching valves 121 and 341 and the switching valves 122 and 342 are selectively opened and closed to connect the natural intake pipe 8 and the blower intake pipe 9 to the pipes 50 and 51.
【００１７】 吸着塔１，２の下部に接続された脱着バルブ１３，２３は真空ポンプ６をもつ 脱着配管５２に接続され、吸着塔３，４の下部に接続された脱着バルブ３３，４ ３は真空ポンプ７をもつ脱着配管５３に接続されている。The desorption valves 13 and 23 connected to the lower parts of the adsorption towers 1 and 2 are connected to the desorption pipe 52 having the vacuum pump 6, and the desorption valves 33 and 43 connected to the lower parts of the adsorption towers 3 and 4 are It is connected to a desorption pipe 53 having a vacuum pump 7.
【００１８】 本実施例では、４塔の吸着塔１〜４内において、図２に示す従来のＰＳＡガス 分離装置と同様に、図３に示す各工程が順次互いに位相を異らせて繰り返して行 なわれ、各吸着塔１〜４内において吸着剤による窒素ガスの吸着・脱着が行なわ れ、原料ガス中の窒素ガスを分離した酸素富化ガスが連続的に得られる。In this embodiment, in each of the four adsorption towers 1 to 4, as in the conventional PSA gas separation apparatus shown in FIG. 2, each step shown in FIG. In each of the adsorption towers 1 to 4, the adsorbent adsorbs and desorbs the nitrogen gas, and the oxygen gas enriched from the nitrogen gas in the raw material gas is continuously obtained.
【００１９】 本実施例において、図３に示される０〜１／４工程の間においては、吸着塔１ が自然吸気工程（ＮＡ），吸着塔４がブロワ吸気工程（Ａ）であるので、この間 切換バルブ１２１及び３４２を開、切換バルブ３４１，１２２を閉とし、自然吸 気配管８より吸着塔１へ原料空気を供給し、ブロワ吸気配管９より吸着塔４へ原 料空気を供給する。同様に１／４〜２／４工程においては、切換弁１２２，３４ １を開、切換弁１２１，３４２を閉として、自然吸気工程（ＮＡ）にある吸着塔 ３に自然吸気配管８より原料空気を供給し、ブロワ吸気工程（Ａ）にある吸着塔 １にブロワ吸気配管９から原料空気を供給する。以後、同様に２／４〜３／４工 程においては切換弁１２１，３４２を開、切換弁１２２，３４１を閉とし、３／ ４〜４／４工程においては、切換弁１２２，３４１を開、切換弁１２１，３４２ を閉とする。In the present embodiment, the adsorption tower 1 is the natural suction step (NA) and the adsorption tower 4 is the blower suction step (A) during the 0 to 1/4 step shown in FIG. The switching valves 121 and 342 are opened, the switching valves 341 and 122 are closed, and the raw air is supplied to the adsorption tower 1 through the natural suction pipe 8 and the raw air is supplied to the adsorption tower 4 through the blower suction pipe 9. Similarly, in the 1/4 to 2/4 steps, the switching valves 122 and 341 are opened and the switching valves 121 and 342 are closed, and the raw air is supplied from the natural intake pipe 8 to the adsorption tower 3 in the natural intake step (NA). And the raw material air is supplied from the blower intake pipe 9 to the adsorption tower 1 in the blower intake step (A). Thereafter, similarly, the switching valves 121 and 342 are opened and the switching valves 122 and 341 are closed in the 2/4 to 3/4 process, and the switching valves 122 and 341 are opened in the 3/4 to 4/4 process. , The switching valves 121 and 342 are closed.
【００２０】 なお、各吸着塔１〜４の脱着時には、該当する脱着バルブ１３，２３，３３， ４３をそれぞれ該当する期間開とする。When desorbing each of the adsorption towers 1 to 4, the corresponding desorption valves 13, 23, 33, 43 are opened for the corresponding period.
【００２１】 以上説明したように、本実施例では、前記のように、切換バルブ１２１，１２ ２，３４１，３４２を設けて、吸着塔１〜４の各々をそれぞれ１つのバルブ１１ ，２１，３１，４１を介して自然吸気配管８又はブロワ吸気配管９に選択的に接 続して、必要な原料空気の供給を行なうことができる。As described above, in this embodiment, as described above, the switching valves 121, 122, 341 and 342 are provided, and each of the adsorption towers 1 to 4 is provided with one valve 11, 21, 31 respectively. , 41 to selectively connect to the natural intake pipe 8 or the blower intake pipe 9 to supply the necessary raw material air.
【００２２】 従って、本実施例では、原料空気の供給用として各吸着塔に１つのバルブ１１ ，２１，３１，４１が設置されるに止まり、バルブの数が減少し、またこれに伴 って吸着塔下部の配管を簡単化することができる。これによって、設計・製作上 の手間が減少すると共にメインテナンス費用を節減することができる。Therefore, in the present embodiment, only one valve 11, 21, 31, 41 is installed in each adsorption tower for supplying the raw material air, and the number of valves is reduced. The piping under the adsorption tower can be simplified. As a result, the design and manufacturing labor can be reduced and maintenance costs can be reduced.
【００２３】 特に、吸着塔に接続されるバルブ１１，２１，３１，４１は、耐久性の大きい 高価なバルブ（年間２０〜３０万回開閉してもリークゼロ）を使用しなければな らず、かつ定期的なパッキン交換等のメンテナンスを要するが、本実施例では、 以上のように、高耐久性バルブの数を減らすことができるので製造コスト上有利 であり、またメンテナンス費用を著しく節減することができる。In particular, the valves 11, 21, 31 and 41 connected to the adsorption tower must use expensive and highly durable valves (zero leak even if they are opened and closed 200,000 to 300,000 times a year). Moreover, maintenance such as periodical packing replacement is required, but in this embodiment, as described above, the number of highly durable valves can be reduced, which is advantageous in manufacturing cost, and maintenance cost can be significantly reduced. You can
【００２４】 また更に、本実施例における自然吸気配管とブロワ吸気配管とを切換える切換 バルブは、どちらも原料空気を扱うものであるので、多少のリークの発生は実質 上問題にならない。従って安価な（リークに対して耐久性を要しない）バルブを 採用することができ、製造コスト上有利である。Furthermore, since the switching valve for switching between the natural intake pipe and the blower intake pipe in this embodiment handles the raw material air, the occurrence of some leakage does not substantially pose a problem. Therefore, an inexpensive valve (which does not require durability against leaks) can be adopted, which is advantageous in manufacturing cost.
【００２５】 なお、前記実施例は、４塔の吸着塔を備えているが、本考案は単塔の吸着塔又 は４塔以外の複数の吸着塔をもつＰＳＡガス分離装置に適用することができるこ とはいう迄もない。Although the above-mentioned embodiment has four adsorption towers, the present invention can be applied to a single adsorption tower or a PSA gas separation apparatus having a plurality of adsorption towers other than four. It goes without saying that you can do it.
【００２６】[0026]
本考案においては、吸着塔に原料ガスを供給する１つのバルブを設け、同バル ブと自然吸気配管とブロワ吸気配管とを交互に切換接続する手段を設けたことに より、吸着塔における配管およびバルブの配置が簡素化されると共に、高耐久性 バルブの数量を減少することができ、設計・製作上の手間を減少し、コスト及び メインテナンス費用を節減することができる。 In the present invention, one valve for supplying the raw material gas to the adsorption tower is provided, and means for alternately switching and connecting the valve, the natural intake pipe, and the blower intake pipe is provided. The valve arrangement can be simplified and the number of highly durable valves can be reduced, which reduces the design and manufacturing effort and saves cost and maintenance costs.
【図１】本考案の一実施例の系統図である。FIG. 1 is a system diagram 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】ガス分離の各工程を示す説明図である。FIG. 3 is an explanatory diagram showing each step of gas separation.
１，２，３，４ 吸着塔 ５ ブロワ ６，７ 真空ポンプ ８ 自然吸気配管 ９ ブロワ吸気配管 １１，２１，３１，４１ バルブ １３，２３，３３，４３ 脱着バルブ １２１，１２２，３４１，３４２ 切換バルブ 1, 2, 3, 4 Adsorption tower 5 Blower 6,7 Vacuum pump 8 Natural intake pipe 9 Blower intake pipe 11,21,31,41 Valve 13,23,33,43 Desorption valve 121,122,341,342 Switching valve
Claims (1)
を再生した後、吸着塔内の減圧のエネルギを利用して原
料ガスを吸着塔内に吸引する第１の工程と、ブロワによ
り原料ガスを吸着塔に供給する第２の工程とを行なう圧
力スイング式ガス分離装置において、吸着塔に原料ガス
を供給する１つのバルブと、同バルブに、前記第１の工
程で原料ガスを供給する配管を、前記第２の工程で原料
ガスを供給する配管を、交互に切換え接続する手段を設
けたことを特徴とする圧力スイング式ガス分離装置。[Claims for utility model registration] [Claim 1] After regenerating the adsorbent in the adsorption tower by reducing the pressure in the adsorption tower, the raw material gas is sucked into the adsorption tower by utilizing the energy of the reduced pressure in the adsorption tower. In a pressure swing type gas separation apparatus that performs a first step and a second step of supplying a raw material gas to an adsorption tower by a blower, one valve for supplying the raw material gas to the adsorption tower and the above A pressure swing gas separation apparatus comprising means for alternately connecting and connecting the pipe for supplying the raw material gas in the step 1 and the pipe for supplying the raw material gas in the second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5252691U JPH057323U (en) | 1991-07-08 | 1991-07-08 | Pressure swing type gas separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5252691U JPH057323U (en) | 1991-07-08 | 1991-07-08 | Pressure swing type gas separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH057323U true JPH057323U (en) | 1993-02-02 |
Family
ID=12917195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5252691U Withdrawn JPH057323U (en) | 1991-07-08 | 1991-07-08 | Pressure swing type gas separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148399A (en) * | 1987-12-02 | 1989-06-09 | Osaka Prefecture | Cooker |
| WO1995033681A1 (en) * | 1994-06-02 | 1995-12-14 | Nippon Sanso Corporation | Oxygen generating method based on pressure variation adsorption separation |
-
1991
- 1991-07-08 JP JP5252691U patent/JPH057323U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148399A (en) * | 1987-12-02 | 1989-06-09 | Osaka Prefecture | Cooker |
| WO1995033681A1 (en) * | 1994-06-02 | 1995-12-14 | Nippon Sanso Corporation | Oxygen generating method based on pressure variation adsorption separation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19951102 |