JP2002035525A

JP2002035525A - Psa gas separation apparatus

Info

Publication number: JP2002035525A
Application number: JP2000227436A
Authority: JP
Inventors: Kazukiyo Takano; 和潔高野
Original assignee: Sanyo Electronic Industries Co Ltd
Current assignee: Sanyo Electronic Industries Co Ltd
Priority date: 2000-07-27
Filing date: 2000-07-27
Publication date: 2002-02-05

Abstract

PROBLEM TO BE SOLVED: To reduce the number of constitutent parts to reduce the number of assembling processes and to also form principal constituent parts into an integrated structure, in a PSA gas separation apparatus. SOLUTION: The principal constituent parts are processed using a resin by a blow molding method so as to become integrated constitution and the predetermined places (A, B, C) of the processed product are bent to form a three-dimensional structure to provide the function of the gas separation apparatus.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は樹脂による複数種類の
機能用構造部品を用いた装置の製造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the manufacture of an apparatus using a plurality of types of functional structural parts made of resin.

【０００２】[0002]

【従来の技術】装置はいろいろな機能を持つ部品を組
合せて架体に組付け、それを筐体内に収納して出来上が
っている。そして装置を構成するいろいろな機能用構造
部品の中には樹脂材料に変更し得るものも多い。いまま
でそれ等の部品は個別にその機能用に設計,製作されて
いた。そしてそれを架体に取付けるために各々専用の取
付（支持）金具なども必要であった。具体的例として、
空気を原料として窒素ガスあるいは酸素ガスを分離して
使用するＰＳＡ( Pressure Swing Adsorption）ガス分
離装置は吸着筒という容器に特定ガスのみ吸着して分離
除去する吸着剤を充填して吸着床を構成し、その吸着床
に空気を送り込み、目的ガスを濃縮する装置がある。こ
の場合、窒素ガスを濃縮するか、酸素ガスを濃縮するか
は、その目的ガスにより吸着剤を選択する必要がある。2. Description of the Related Art An apparatus is assembled by assembling parts having various functions into a frame, and storing it in a housing. In addition, among various functional structural parts constituting the apparatus, many can be changed to resin materials. Until now, these parts were individually designed and manufactured for their functions. In order to attach it to the frame, dedicated mounting (supporting) fittings were required. As a specific example,
PSA (Pressure Swing Adsorption) gas separation equipment that separates nitrogen gas or oxygen gas using air as a raw material is used to construct an adsorption bed by filling a vessel called an adsorption cylinder with an adsorbent that adsorbs only a specific gas and separates and removes it. There is a device that feeds air into the adsorption bed to concentrate the target gas. In this case, it is necessary to select an adsorbent depending on the target gas whether to concentrate the nitrogen gas or the oxygen gas.

【０００３】これ等吸着床で濃縮した、例えば酸素ガス
はバッファタンクに貯留して、そのガスを使用に供して
いる。現在、小型のＰＳＡガス分離装置の吸着筒とバッ
ファタンクはアルミの容器が多く使われている。これと
空気ポンプや電磁弁、制御用電気機器とともに組合わさ
れる。これを構造架体が別に製作されて取付金具等で取
付けて組立られ、ナイロン管又は金属配管で配管、又は
配線されて装置が完成する。吸着筒やバッファタンクは
樹脂化構造物にする事は可能であるが、今まではそれぞ
れ独立に製作され組付けられていた。このため、架体が
必要であり、組付工数が必要であり、取付又は支持構造
物が必要であった。そのため部品類が増え、原価高とな
り、装置が重く、大きくなるという問題があった。[0003] For example, oxygen gas concentrated in these adsorption beds, for example, is stored in a buffer tank and is used for use. At present, aluminum containers are often used for the adsorption cylinder and the buffer tank of a small PSA gas separation device. This is combined with an air pump, solenoid valve, and control electronics. This is separately assembled into a structural frame, attached with a mounting bracket or the like, assembled, and then piped or wired with a nylon pipe or metal pipe to complete the device. Although the adsorption cylinder and buffer tank can be made of resinous structure, they have been manufactured and assembled independently until now. For this reason, a frame is required, assembling man-hours are required, and an attachment or support structure is required. Therefore, there is a problem that the number of parts increases, the cost increases, and the device becomes heavy and large.

【０００４】[0004]

【発明が解決しようとする課題】本発明の目的は、従来
技術が有していた前述の複数の欠点を除き、部品点数の
削減と、組立の容易化、装置の小型軽量化を図ろうとす
るものである。SUMMARY OF THE INVENTION An object of the present invention is to reduce the number of parts, facilitate assembly, and reduce the size and weight of the apparatus, except for the above-mentioned disadvantages of the prior art. Things.

【０００５】[0005]

【課題を解決するための手段】本発明は構成する各機能
部品のうち、樹脂化可能な複数種類の機能用構造部品と
それ等部品を装置内で支持する構造部をひとつの工程で
製造した樹脂構造物を含む構成の装置とする。例えば、
吸着筒容器とバッファタンクなど複数種類の機能用部品
を部品の支持構造物や架体も含めて、ブロー成形により
樹脂構成して製造し、これに空気ポンプや電磁弁等、樹
脂化できない部品を組付け、配管で接続するなどしてＰ
ＳＡガス分離装置を完成させる。According to the present invention, a plurality of types of functional structural parts which can be made of resin and structural parts for supporting the structural parts in an apparatus are manufactured in a single step. The device is configured to include a resin structure. For example,
Parts of various functions, such as adsorption cylinder containers and buffer tanks, including the supporting structure and frame of the parts, are made of resin by blow molding, and parts that cannot be resinized, such as air pumps and solenoid valves, are manufactured. Assembling, connecting with piping, etc.
Complete the SA gas separation device.

【０００６】[0006]

【実施例】以下、図面を参照して本発明を更に詳細に説
明する。図１に本発明の１実施例を示す。これは図２の
フローシートで示す酸素濃縮器に応用したもので酸素濃
縮器は２本の吸着筒３及び４に窒素ガスを吸着するゼオ
ライトという吸着剤を吸着筒３及び４にそれぞれ１３、
１４として充填し、これに空気ポンプ２により外気を吸
入フィルター１より取入れて吐出口２１より圧縮空気を
送り出し、３方電磁弁５及び６を介して吸着筒３及び４
の入口３１,４１に接続されている。いま３方電磁弁５
は圧縮空気を吸着筒３に送り込んでいる。このとき、吸
着筒３の中の吸着剤１３は空気中の窒素ガスを吸着し、
取除き出口３２より酸素ガスが濃縮されて取出され、オ
リフィス８を通ってバッファタンク９に入口９２を通っ
て貯留される。この工程を吸着工程という。この濃縮さ
れた酸素は減圧弁１０によって一定圧力に調圧された
後、必要量を絞り弁１１により調節されて取出口１２よ
り外部に取出される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings. FIG. 1 shows an embodiment of the present invention. This is applied to the oxygen concentrator shown in the flow sheet of FIG. 2, and the oxygen concentrator uses an adsorbent called zeolite, which adsorbs nitrogen gas on the two adsorption tubes 3 and 4, into the adsorption tubes 3 and 4, respectively.
14, the outside air is taken in from the suction filter 1 by the air pump 2, compressed air is sent out from the discharge port 21, and the adsorption cylinders 3 and 4 are passed through the three-way solenoid valves 5 and 6.
Are connected to the entrances 31 and 41 of the main body. Now 3-way solenoid valve 5
Is sending compressed air to the adsorption column 3. At this time, the adsorbent 13 in the adsorption column 3 adsorbs nitrogen gas in the air,
Oxygen gas is condensed and taken out from the removal outlet 32, passes through the orifice 8, and is stored in the buffer tank 9 through the inlet 92. This step is called an adsorption step. After the concentrated oxygen is regulated to a constant pressure by the pressure reducing valve 10, the required amount is adjusted by the throttle valve 11, and is taken out from the outlet 12.

【０００７】吸着筒４の吸着剤１４が窒素ガスを吸着除
去し、前と同じく酸素ガスを濃縮して、オリフィス８´
を通ってバッファタンク９に取出す。そして前の工程で
吸着筒３の吸着剤１３に吸着された窒素ガスは３方電磁
弁５か吸着筒３とサイレンサー７とが導通するように切
替り、吸着筒３の圧力がサイレンサー７を介して大気に
開放されるので大気圧まで減圧し、吸着剤１３に吸着さ
れた窒素ガスが吸着剤より離脱し、放出される。The adsorbent 14 of the adsorption column 4 adsorbs and removes nitrogen gas, concentrates oxygen gas as before, and forms an orifice 8 '.
Through the buffer tank 9. Then, the nitrogen gas adsorbed by the adsorbent 13 of the adsorption cylinder 3 in the previous step is switched so that the three-way solenoid valve 5 or the adsorption cylinder 3 and the silencer 7 are conducted, and the pressure of the adsorption cylinder 3 is passed through the silencer 7. The pressure is reduced to the atmospheric pressure, and the nitrogen gas adsorbed by the adsorbent 13 is released from the adsorbent and released.

【０００８】このことにより吸着剤の吸着性能が回復さ
れる。これを再生工程という。この２本の吸着筒を交互
に吸着工程、再生工程とを繰り返し、連続して酸素ガス
を濃縮する装置である。図２の一点鎖線でかこんだ部分
の機能用構造部をブロー成形で製造し、図１の（イ）で
示す。これは図２の同一機能部と同一番号を付してあ
る。（イ）の点線Ａ，Ｂ，Ｃより折り曲げて構造体とし
て図１の（ロ）で示すよう構成し、各々の部品が架体に
組付けられた形とする。吸着筒３，４には入口３１，４
１より吸着剤を１３，１４をそれぞれ入れ、充填した
後、密栓３１´及び４１´を取付ける。そしてこの口に
電磁弁５及び６をそれぞれに結合し、空気ポンプ２の吐
出口２１より圧縮空気を電磁弁５，６を介して取り込
む。空気ポンプ２の空気取入口２２は図１（イ）の１で
示す吸入フィルター１に接続され外気が取り入れられ
る。尚、吸入フィルター１部はブロー成形で吸入フィル
ター外枠のみ形成されるので、成形後、加工して内部に
フィルターエレメントを挿入し、外気を濾過して取込め
るようになっている。As a result, the adsorption performance of the adsorbent is restored. This is called a regeneration step. This is an apparatus for continuously concentrating oxygen gas by alternately repeating the adsorption step and the regeneration step with these two adsorption columns. The functional structure portion surrounded by the dashed line in FIG. 2 is manufactured by blow molding, and is shown in FIG. This is given the same number as the same function unit in FIG. It is bent from the dotted lines A, B, and C in (a) to form a structure as shown in (b) of FIG. 1 and each part is assembled into a frame. The inlets 31 and 4 are connected to the adsorption tubes 3 and 4,
After filling and filling the adsorbents 13 and 14 respectively from 1, the hermetic plugs 31 'and 41' are attached. Then, electromagnetic valves 5 and 6 are respectively connected to the ports, and compressed air is taken in from the discharge port 21 of the air pump 2 through the electromagnetic valves 5 and 6. The air inlet 22 of the air pump 2 is connected to the suction filter 1 shown at 1 in FIG. In addition, since only the suction filter outer frame is formed by blow molding of the suction filter 1 part, after molding, it is processed and a filter element is inserted inside, so that the outside air can be filtered and taken in.

【０００９】同じく電磁弁５，６と接続されるサイレン
サー７は膨張消音構造及び共鳴消音構造を用いた構造と
し、ブロー成形後に外気へ排気が放出できる加工を施
す。図中では省略しているが、吸着筒３の出口３２及び
吸着筒４の出口４２はオリフィス８，８´を介して、バ
ッファタンク９の入口９２に導管で接続される。バッフ
ァタンク９の導出口９３より減圧弁１０及び絞り弁１１
を介して取出口１２に接続される。尚、電磁弁や空気ポ
ンプ、減圧弁を取付ける座も一体構成樹脂構造物の中に
含めることが出来る。更に外部筐体も含めて組合せるこ
ともできる。Similarly, the silencer 7 connected to the solenoid valves 5 and 6 has a structure using an expansion noise reduction structure and a resonance noise reduction structure, and is subjected to processing capable of releasing exhaust gas to the outside air after blow molding. Although not shown in the drawing, the outlet 32 of the suction tube 3 and the outlet 42 of the suction tube 4 are connected to the inlet 92 of the buffer tank 9 via orifices 8 and 8 '. From the outlet 93 of the buffer tank 9, the pressure reducing valve 10 and the throttle valve 11
To the outlet 12 via It should be noted that a seat for mounting an electromagnetic valve, an air pump, and a pressure reducing valve can also be included in the integrated resin structure. Furthermore, it can also be combined including the external housing.

【００１０】[0010]

【発明の効果】複数種類の機能用構造部品とそれを支持
する構造部品を含めてひとつの工程で製造した樹脂構造
物とすることにより、その部品点数の削除、組付工数の
削減、製造原価の著しい低減が可能となり量産性が向上
する。According to the present invention, a resin structure including a plurality of types of functional structural components and a structural component supporting the functional components is manufactured in a single process, thereby reducing the number of components, reducing the number of assembly steps, and reducing manufacturing costs. Is remarkably reduced, and mass productivity is improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の１実施例を示す図である。図１
（イ）は、ブロー成形法で製造した製品の仕上り説明図
で、図１（ロ）は、この製品の具体的使用例を示す説明
図である。FIG. 1 is a diagram showing one embodiment of the present invention. Figure 1
(A) is an explanatory view of a finished product manufactured by the blow molding method, and FIG. 1 (B) is an explanatory view showing a specific usage example of the product.

【図２】本発明の１実施例である酸素濃縮器のフロー
図である。FIG. 2 is a flow chart of an oxygen concentrator according to one embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１吸入フィルター２空気ポンプ３，４吸着筒５，６三方電磁弁７サイレンサー８，８´ オリフィス９バッファタンク１０減圧弁１１絞り弁１２取出口１３，１４吸着剤２１取出口２２空気取入口３１入口３１´，４１´ 密栓３２出口４１入口４２出口９２入口９３出口７１入口１００ブロー成形部 REFERENCE SIGNS LIST 1 suction filter 2 air pump 3,4 adsorption cylinder 5,6 three-way solenoid valve 7 silencer 8,8 'orifice 9 buffer tank 10 pressure reducing valve 11 throttle valve 12 outlet 13,14 adsorbent 21 outlet 22 air inlet 31 inlet 31 ', 41' Sealing plug 32 Outlet 41 Inlet 42 Outlet 92 Inlet 93 Outlet 71 Inlet 100 Blow molding part

Claims

【特許請求の範囲】[Claims]

【請求項１】複数種類の機能用構造部品とそれ等部品
を支持する構造部をひとつの工程で製造した樹脂構造物
を含む構成の装置。An apparatus having a structure including a resin structure in which a plurality of types of functional structural components and a structural portion supporting the components are manufactured in one process.

【請求項２】複数種類の機能用構造部品とそれ等部品
を支持する構造部をブロー成型法により製造した樹脂構
造物を含む構成の装置。2. An apparatus including a resin structure in which a plurality of types of functional structural parts and a structural part supporting the functional parts are manufactured by a blow molding method.

【請求項３】吸着筒容器とバッファタンクなど複数種
類の機能用部品とそれ等部品を支持する構造部をブロー
成形法によ製造した樹脂構造物を含む構造のＰＳＡガス
分離装置。3. A PSA gas separation apparatus having a structure including a resin structure in which a plurality of types of functional parts such as an adsorption cylinder container and a buffer tank and a structural part supporting the parts are manufactured by a blow molding method.