JPS59188076A - Slide valve type screw compressor - Google Patents
Slide valve type screw compressorInfo
- Publication number
- JPS59188076A JPS59188076A JP5713984A JP5713984A JPS59188076A JP S59188076 A JPS59188076 A JP S59188076A JP 5713984 A JP5713984 A JP 5713984A JP 5713984 A JP5713984 A JP 5713984A JP S59188076 A JPS59188076 A JP S59188076A
- Authority
- JP
- Japan
- Prior art keywords
- slide valve
- suction
- face
- gas
- rotor
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 101100346154 Caenorhabditis elegans oma-1 gene Proteins 0.000 description 1
- 244000201986 Cassia tora Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NCAIGTHBQTXTLR-UHFFFAOYSA-N phentermine hydrochloride Chemical compound [Cl-].CC(C)([NH3+])CC1=CC=CC=C1 NCAIGTHBQTXTLR-UHFFFAOYSA-N 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary-Type Compressors (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、スライド弁式スクリュ圧縮磯に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slide valve type screw compression rock.
、二のスクリュ圧縮融は、ｆｊＳ１図、第２図に示１に
つに、ｊ１゛いに噛合いながら回転する雌に１［−月の
スクリュロータ（以下、ロータといつ。）Ｓ、Ｂをケー
シング７のび−タ室８（第１図中、ロータｊ３と重複し
て表われるためカッコを（；ｔ して示す。）内に有す
るとともに、ロータ室８の一方の端面は、ロータ５，６
の歯溝９の位置に１応させて部分的に切欠いて形成した
開−１］部（アキシャルボート）１（１により吸込ケー
シング７ａ内を経て吸込１１１１ ｔこ連通し、また池
力の端面においては、開（］部の形状は異なるものの同
様にして吐出１１１２に連通している。さらに、ロータ
室８の下部には、ロータ室８と一部重複しが−ノ」二記
吸込［」１１に連通する円柱状空隙部か形成してあり、
この中にロータ室８の壁面の一部を形成する断１ｆ萌１
１形でがっ山形の各辺か円弧からなる曲面２を有するス
ライド弁（長さり、）３］かロータ軸力向に摺動自在に
嵌挿してあり、その前方側に設けた固定弁；）１ａに、
上り前進限の位置決めがなされでいる。, the compression melting of the second screw is shown in Fig. fjS1 and Fig. The casing 7 has an elongated rotor chamber 8 (shown in parentheses (;t) because it appears overlapping with the rotor j3 in FIG. 1), and one end surface of the rotor chamber 8 has the rotor 5, 6
The opening (1) part (axial boat) 1 (1) formed by partially notching the tooth groove 9 of Although the shape of the opening ( ) is different, it communicates with the discharge 1112 in the same way.Furthermore, in the lower part of the rotor chamber 8, there is a suction ['11] which partially overlaps with the rotor chamber 8. A cylindrical cavity is formed that communicates with the
A section 1f moe 1 forming a part of the wall surface of the rotor chamber 8 in this
A slide valve (length, ) 3 of type 1 having a curved surface 2 consisting of each side of a chevron-shaped arc or a circular arc, or a fixed valve fitted on the front side of the slide valve so as to be slidable in the direction of the rotor's axial force; ) 1a,
The positioning of the upward advance limit has been completed.
そして、このスクリュ圧縮機は、吸込口１１より吸込ん
だ気体を、ロータ５，６とケーシング７との間のロータ
室８内に閉込めて圧縮した後、吐７１’、ｌ Ｉ １２
−＼吐出する一力、スライド弁３１を進退させることに
よりロータ室ン）の壁面部において、ロータ室８と吸込
１−１１ ｉとを連通させる開口部である７ノ゛Ｉ′ル
ホー１１：（（第１図中・点鎖線で小Ｖように、スライ
ド弁：）１が固定弁３１ａがら離れた状態の時に形成さ
れる。）を面積調節可能に形成し、ロータ５，６による
閉込み開始位置を調節することによ１）容量制御が行え
るようになって・、）る。This screw compressor traps the gas sucked in through the suction port 11 in the rotor chamber 8 between the rotors 5, 6 and the casing 7, compresses it, and then discharges the gas through the discharge port 71', l I 12
- ＼By moving the slide valve 31 forward and backward to discharge the force, the 7-hole hole 11, which is an opening that connects the rotor chamber 8 and the suction 1-11i: ( (The slide valve 1 is formed when the fixed valve 31a is separated from the fixed valve 31a, as indicated by the small V indicated by the dotted chain line in FIG. By adjusting the position, 1) Capacity can be controlled.
しかしながら、第３し１．第・・１図に示すように、従
来のスライド弁３１は、１ｙｉ込口側の端部３３が摺動
方向に東直な平面により形成されているため、゛ピメ蓋
制御開始時では、ラジアルポート１３の開［］部面積を
いかに僅かずつ変化させ′ζも、閉込み開始時における
閉込み空間の体積（以下、吸込容量という。）の急激が
０４・連続的な変化を避けることかでｂなかった。However, 3rd and 1. As shown in Fig. 1, in the conventional slide valve 31, the end 33 on the 1yi inlet side is formed by a plane perpendicular to the east in the sliding direction. No matter how little the area of the open part of the radial port 13 is changed, it is possible to avoid sudden and continuous changes in the volume of the confined space (hereinafter referred to as suction capacity) at the start of confinement. It wasn't.
、二の１一連続的な変化を、第５ａ図〜第５１図、第Ｌ
ｉａ図・・第６［図にしたがって、さらに詳述する。, 2-1 Continuous changes are shown in Figures 5a to 51, L
Fig. ia... This will be explained in further detail according to Fig. 6.
第５ａ図〜第５ｒ図は、スクリュ圧縮機の吸込［丁［１
１側の端部部における回転の進行に伴う状態の変化を示
すもので、第５ａ図がし、第５［図へと移るにしたかっ
て、ロータ５，６が矢印方向に順次回転上これとともに
斜線１１１ｓで小４− 閉込み空間１４か閉込み開始直
後の第５ａ図より徐々に圧縮されてゆく状態を示してい
る。なお、この閉込み空間１４は、上記ラジアルポート
１３が閉鎖状態（こある（したか′って、ラジアルポー
ト１３は、第５ａ図〜第５ｆ図中には現われない。）場
合に形成されるものを示しまた、説明をＩ’ｉｉ：＋単
にするため、−Ｊｌｌ開開１部１０を形成する端面１７
の１７方突出部１８すなわちロータ５，６の歯溝端部を
閉しる部シナ（第２図中、点３１ Ｌｌ ｕ＋ Ｖで囲
まれる部分で、第５ａ図以下において便宜上太線で表わ
しである。）の幅Ｗと、スライド弁３１の曲面２の幅田
とは等しいものとする（第２図参照）。Figures 5a to 5r show the suction of the screw compressor.
This figure shows changes in the state as the rotation progresses at the end portion of the 1 side, and as Fig. 5a shows and moves to Fig. 5[, the rotors 5 and 6 sequentially rotate in the direction of the arrow. A diagonal line 111s indicates a state in which the small confined space 14 is gradually compressed from that in FIG. 5a immediately after the confinement starts. Note that this confined space 14 is formed when the radial port 13 is in a closed state (the radial port 13 does not appear in FIGS. 5a to 5f). I'ii: + For simplicity, - the end face 17 forming the Jll opening 1 part 10.
The 17-direction protrusion 18, that is, the part that closes the end of the tooth groove of the rotors 5, 6 (the part surrounded by the point 31 Llu+V in FIG. 2, and is shown by a thick line for convenience in FIGS. 5a and below). ) is equal to the width W of the curved surface 2 of the slide valve 31 (see FIG. 2).
第６ａ図〜第６ｆ図は、第５ａ図へ第５ｆ図のＸ−Ｘ線
断面部分（ただし、第５１１図〜第５ｒ図についてはＸ
−Ｘ断面の表示は省略しである。）を平面に展開して表
わしたもので、第６ａ図−第６ｆ図の（５々は、ｆｉ！
ｉａ図・・・第５ｆ図の同しアルファベットのものにヌ
・）応する。図示するように、スライド弁：）１の端部
３３は、固定弁３１ｇに当接した状態、′ｒなわち端部
１゛７と−・致した（１′ｌ置にあり、曲面２によりラ
ジアルポート１：）は閑しられている（したかって、ラ
ジアルポート）３は第６ａ図〜第６［図中には現われな
い。）１． また、第６ａ図〜第６ｒＭＪ付１線部は
（ｆ已ａ図・−第５１図中の斜線部に対応Ｙる閉込み′
空間１・１をボし、第６ａ図〜第６Ｆ図へと移る）こし
たかって、図中、Ｆ方に向って徐々に移動し′ζいる。Figures 6a to 6f are cross-sectional portions taken along the line X-X of Figure 5a to Figure 5f (however, Figures 511 to 5r are
-X cross section is not shown. ) is shown expanded on a plane, and (5 is fi!) in Figures 6a to 6f.
Figure ia...corresponds to those with the same alphabet in Figure 5f. As shown in the figure, the end 33 of the slide valve 1 is in contact with the fixed valve 31g; The radial port 1:) is idle (and therefore the radial port) 3 does not appear in Figures 6a-6[. )1. In addition, the 1-lined portion in Figures 6a to 6rMJ corresponds to the shaded area in Figure 51.
(We leave space 1.1 and move on to Figures 6a to 6F) Therefore, it gradually moves towards F in the figure.
−ノＪ、この閑込み空間１４の図示しないｌｌｌ’、：
Ｉ’ｌｌ ｌ側の端部は端部１５ｊ（こ至っており、所
定角度回転「る間１、−の端部１！Ｊにより吐出１１１
１１１の端部か閉しられているため、第６ａ図より第に
［図に移るにしたかって、閉込み空間１４の容積か減少
し、気体の圧縮か行われるのである。-J, Ill', not shown, of this empty space 14:
The end on the I'll l side is connected to the end 15j, and during the predetermined angle rotation 1, the - end 1!
Since the end of the confinement space 111 is closed, the volume of the confined space 14 decreases from FIG. 6a to FIG.
ついで、第’７ａ図・〜第′７ｆし１は、第６ａ図〜第
６ｆ図の状態よりスライド弁；（１を、その端部３３か
゛ロータ室８の端部１７より若干吐出口側（図中、１・
力）に位置［るように少したけ移動させて、ラノアルポ
−１・１３をごく僅かだけ開いた状態と腰この時の気体
閉込み状態の変化を、１−、配向様第５ａ図〜第５ｆ図
の同アルファベントの図に対応させて表わしたものであ
る。この場合、１ｏ記閉込み空間］４に対応する部分は
、第’７ａ図〜第７ｒ図においては、ドツト部分２（）
で示すように、ラジアルポート１３により吸込］」１１
に連通しているため、気体の閉込みは行われす、第７ｅ
図以降においてのみ斜線部で示すように閉込み空間１５
か形成され、すなわち、雌雄ロータ５，６の接触部分で
あるＶ形の斜線部の最下点Ｍ（閉込み点）かロータ室８
の端部】７側より移動してスライド弁３１の端部３３の
位置に達して、はしめて閉込み空間１５か′形成される
。Next, the slide valve 1 from the state shown in Figs. In the figure, 1.
The changes in the gas confinement state at this time are shown in Figs. 5a to 5f. This is a representation corresponding to the same Alphavent diagram in the figure. In this case, the part corresponding to 1o confinement space] 4 is the dot part 2 () in Figures 7a to 7r.
As shown in , suction through radial port 13 ] 11
Since the gas is in communication with the
Confined space 15 as shown by the shaded area only in the following figures
is formed, that is, the lowest point M (confinement point) of the diagonally shaded part of the V shape, which is the contact area between the male and female rotors 5 and 6, or the rotor chamber 8.
It moves from the end [7] side and reaches the position of the end 33 of the slide valve 31, where it is tightened to form a confined space 15'.
したがって、上記吸込容量は、第６ａ図〜第６ｒ図の場
合は、第６ａ図の閉込み空間１・・１の容積となるのに
則して、第７ａ図〜第７ｆ図の場合は、第７ｅ図の閉込
み空間１５の容積となり、ラジアルポート１３を僅かに
開くだけで、吸込容量１ま第６ａ図の状態から第’？ｅ
図の状態（第Ｇ ０図の閉込み空１１１＝［と同容積で
ある。）まで、急激かつ不連続的に変化している。この
ラジアルポート１３をさらに小おくしてら、閉込み開始
時の最下点Ｍの位置か端面１°ｊ・＼より近つくたけで
図中端面１７よ１） ｌ−刀（こあり、閉込み空間１５
か第７ｄ図を過ぎてからで゛ないと形成されない以上、
やはり吸込容量は１−記１−羽］Ｙｏ百〜（Ｓａ図の状
態から不連続的に変化する。Therefore, in the case of Figs. 6a to 6r, the above-mentioned suction capacity becomes the volume of the confined space 1...1 in Fig. 6a, and in the case of Figs. 7a to 7f, The volume of the confined space 15 becomes as shown in Fig. 7e, and by opening the radial port 13 slightly, the suction capacity increases from the state shown in Fig. 6a to ''? e
It rapidly and discontinuously changes to the state shown in the figure (the volume is the same as the confined space 111 in Figure G0). By making this radial port 13 smaller, the position of the lowest point M at the start of confinement is as close as possible to the end face 1°j・\ (end face 17 in the figure) space 15
Since it is not formed until after Figure 7d,
As expected, the suction capacity changes discontinuously from the state shown in Figure Sa.
なお、スライＩ・弁：（１を吐出＋１側へ移動させてラ
ンアルボ−１１ｊ）を拡大して１Φくと、そＪ’Ｌとと
ち）二閉込み開始時の最Ｉ・“５【、“、１．ｌＶｌの
泣置力弓二肩し′ζゆト、吸込容量は連続的に小さくな
ってゆく。In addition, Sly I valve: (If you move 1 to the discharge +1 side and enlarge Run Albo-11j and reduce it by 1Φ, it will become J'L) 2) The most I valve at the start of confinement will be ", 1. As the displacement force of lVl increases, the suction capacity becomes smaller continuously.
以Ｌ」ニリ、スライド弁：）１の移動とともに吸込容Ｈ
１７，は、第）；１メ１曲線１１に示すよう１こ変化す
る。、−二で、ｌｉｔ： Ｉ＋ｌはスライド弁の移動Ｗ
（ｉ離４゛、本例の場ＩＦは！し本釣には、端面１’？
、：（３間の距離を、縦軸は第５ａ図へ・第１１［図、
第Ｇａし〜第６ｒ図の状態（ラジアルポート１：（か閉
じた状態）における吸込゛在箪に月ｒる１−記移動距離
（゛の位置での吸込容量の比率（％）を小１゜
図示するように、曲線１１は垂直部ＡＢと（Ｉｊ斜部Ｂ
Ｃとからなっている。点Ａは端面１７と端面３３とか同
一平面上に位置しく移動ｄ１１離ｐ ＝ｏ ）、ラジア
ルポート１３か閉じている状態、点Ｂはラジアルポート
１３を閣外始めた時の状態、すなわち第７ｅ図の距離Ｃ
を無限小にした時の状態、点０はランアルポート１３を
引続外拡大した時の状態を示し、ラジアルポート１３の
開口時において、曲線１１は上記のように点Ａから点Ｂ
まで不連続的（こ変化している。The suction capacity H increases with the movement of the slide valve:)1.
17, changes by 1 as shown in curve 11. , -2, lit: I+l is the movement W of the slide valve
(i distance is 4゛, in this example, IF is! And for main fishing, the end face is 1'?
, :(The distance between 3 and the vertical axis is shown in Figure 5a. Figure 11 [Fig.
In the states of No. Ga to No. 6 R (radial port 1: (closed state)), the suction capacity should be reduced to 1 - the moving distance (%) at the position of 1.゜As shown, the curve 11 has a vertical part AB and (Ij oblique part B
It consists of C. Point A is located on the same plane as the end face 17 and end face 33, and the radial port 13 is closed (d11 distance p = o), and point B is the state when the radial port 13 is opened, that is, Fig. 7e. distance C
Point 0 shows the state when the radial port 13 is expanded outward, and when the radial port 13 is opened, the curve 11 changes from point A to point B as described above.
It changes discontinuously.
斯る不連続的な変化に月して、圧析ｉ′Ａ木とＬ′ζ空
気のように比較的重い気体を用いている場合は、気体の
摩擦抵抗が大きく、上記変化に対する気体の吸込み量の
変化の追随性か悪いため、見かけトは、第８図中、曲線
１１１（破線）（こより示すよう（こ、スライド弁３１
の移動に則して吸込容量は連続的に変化する。すなわち
、現頁にはスライド弁３１を徐々に移動させることによ
り、吸込容量の最大値から連続的に容量制御を行うこと
かできる。In order to prevent such discontinuous changes, when a relatively heavy gas is used, such as compressed i'A wood and L'ζ air, the frictional resistance of the gas is large, and the suction of the gas against the above changes is large. Due to the poor ability to follow changes in the amount, the apparent torque is as shown by the curve 111 (broken line) in FIG.
The suction capacity changes continuously according to the movement of. That is, by gradually moving the slide valve 31 on the current page, the suction capacity can be continuously controlled from the maximum value.
しカルながら、圧縮気体として水素、ヘリウムのような
軽い気体を用いた場合は、その摩擦抵抗か小さく、１−
記追随性が良いため、見かけ上の吸込￥ｉ、′猜ち略曲
線１１と同様な変化をする。この結果、この種の気体を
用いた場合は、容量制御の開始時に連続的な制御を行う
ことかできないとり）う欠点を有している１、
本番１１）１は、１４記従来の欠ぷ島こ鑑みてなされた
もので、スライド弁の一１４部曲面の吸込口側を、」−
記１１１形のｌ（ｉ部が曲面の外縁側の角部より吸込１
０側にｉ＋）置ｒる上つ１こ形成することにより、理論
的にら吠込容１ｉＹの変化を連続的ならのとして、圧縮
気体：二軽い気体を用いた場合で・ら、容量制御の開始
時より連続的；二１１り御することを可能としたスライ
ド弁式スクリュ圧お泪幾を提供しようとするものであろ
５
次に、本イａ明を一実施例である図面にしたがって説明
する。However, when a light gas such as hydrogen or helium is used as the compressed gas, the frictional resistance is small and 1-
Since the tracking performance is good, the apparent suction ￥i changes in the same way as the approximate curve 11. As a result, when this type of gas is used, it has the disadvantage that continuous control cannot be performed at the start of capacity control. This was done in consideration of the island, and the suction port side of the curved part of the slide valve.
111 type (I part is suction 1 from the corner on the outer edge side of the curved surface)
By forming an upper layer of i+) on the 0 side, theoretically the change in the filling volume 1iY can be assumed to be continuous, and the capacity can be controlled using a compressed gas: 2 light gas. The present invention is intended to provide a slide valve type screw pressure control that can be controlled continuously from the start of the process. explain.
第９．ｉｔ１図は、本発明に係るスクリュ圧縮機のスラ
イド弁（長さｌ、）１ を示し、第３，４図にボ１ス
ライド弁３１と、吸込しＩ側の端面３３の形状を除いて
、池は実質的に同様である。9th. Fig. 1 shows the slide valve (length l,) 1 of the screw compressor according to the present invention, and Figs. 3 and 4 show the slide valve 31 and the shape of the end face 33 on the suction I side. Ponds are substantially similar.
すなわち、スライド弁１は上記のようにロータ室８の壁
面の一部を形成する断面山形でか−）山形の各辺か円弧
からなる曲面２を有する一力、その吸込口側の端面３は
、これと曲面ンとの交線・１かロータ５，６の歯すし方
向と一致するように１頃斜させて形成してあり、山形の
頂部２６か曲面２の外縁＋１ｔｌｌ角部２７より吸込Ｄ
１ｌｔ１１に位置している。また、端面３１が吸込ケ
ーシング７ａ内に突入可能なようにスＩ・ンパン３か吸
込ケーシング７ａ内に固定しである。That is, the slide valve 1 has a chevron-shaped cross section forming a part of the wall surface of the rotor chamber 8 as described above, and has a curved surface 2 consisting of each side of the chevron or a circular arc, and its end surface 3 on the suction port side is , is formed obliquely around 1 so that the intersection line between this and the curved surface 1 coincides with the tooth alignment direction of the rotors 5 and 6, and suction is drawn from the chevron-shaped top 26 or the outer edge of the curved surface 2 + 1tll corner 27. D
It is located at 1lt11. Further, the I/span 3 is fixed within the suction casing 7a so that the end face 31 can be inserted into the suction casing 7a.
第１１図は、本発明に係るスライド弁式スクリュ圧縮を
幾を示し、スライド弁３１かスライド弁１（こ、固定弁
３１ａがストρ続３に代る点を除いて、飢は実質的に第
１図、第２図に示す又フリユ圧縮を幾と同一であり、対
応する部分には同一番号を付し説明を省略する。また、
第２図は、スライド弁１の番号をカンフ内に併記するこ
とにより、第１１図の側面図として共用しである。FIG. 11 shows the slide valve type screw compression according to the present invention, and shows that the slide valve 31 or the slide valve 1 (in this case, the starvation is substantially The Furyu compression shown in FIGS. 1 and 2 is the same, and corresponding parts are given the same numbers and explanations are omitted.
FIG. 2 is also used as a side view of FIG. 11 by writing the number of the slide valve 1 in the emblem.
つづいて、スライド弁１の移動にヌ・ｊ針る吸込容１１
」の変化を第１２ａ図〜第１２ｒ図にしたか′って説明
する。Next, as the slide valve 1 moves, the suction volume 11
12a to 12r.'
１、記のように交線１・［（図面上、端面３と重複して
表われる。）はロータ５，６の歯すじ方向に傾斜してい
ることにより、第１２ａ図〜第］２ｆ図では、χ７線・
［と歯「しを示す線２２ （展開図であるから直線とな
る。）とは平行となる。この結果、入うイト゛弁１を、
図中」１方へ徐々に移動させてＶ）（と、端面］°７を
示１線七におけるロータ５，６の歯溝の位置かこの線−
１−―を外側から中央部に向って（矢ｌＴｈ［バ刀向に
）移動してゆくのと同様に、スライド弁１の両側からラ
ジアルボート１；）は開い′〔ゆ＜、。1. As shown, the intersection line 1 [(which appears overlapping with the end surface 3 in the drawing) is inclined in the tooth trace direction of the rotors 5 and 6, so that the intersection line 1. Then, the χ7 line
[and the line 22 (which is a straight line because it is a developed view) indicating the tooth position are parallel to each other.As a result, the input valve 1 is
In the figure, the position of the tooth grooves of the rotors 5 and 6 at line 7 is indicated by gradually moving V) (and end face) to 7. This line -
The radial boat 1 opens from both sides of the slide valve 1 in the same way as the slide valve 1 moves from the outside toward the center (in the direction of the arrow lTh).
第１；（ｕ図・第１３（、し１は、このランアルポート
１；（の変化する状態の一例を示すもので、例えは第１
２（−図の状態において、スライド弁またけを１動させ
た場合の変化を示す。図より明らかなよ・）にラジアル
ボート１３は第１．３ａ図では全閉状態にあり図中には
表われておらず、第１３１〕図かう第１ｊ３（し１・＼
と移るにつれて初１，１．．シている。この結果、第］
３ａ図、第１３１）図の閉込み空間１６は第１３ｃ図で
は閉込み開始前の状態となっ・ζいる。Fig. 1; (u Figure 13);
2 (- This shows the change when the slide valve straddle is moved once in the state shown in the figure. It is clear from the figure.) The radial boat 13 is in the fully closed state in Figure 1.3a, and in the figure It does not appear, and the 131st] figure 1j3 (shi1
As you move on, the first 1, 1. ．． It's happening. As a result,
The confined space 16 in Figures 3a and 131) is in a state before the start of confinement in Figure 13c.
したかって、ラジアルボート］：３の開ぎ始めの状態を
示す第１２ａ図〜第１２Ｆ図において、第５ａ図〜第５
ｒ図、第６ａｌメト・・第６ｆ図の閉込み空間１４に対
応する部分は、第１２ａし１では、ｌ” ン）部分２１
で示してあり、ラジアルボート１３により吸込口］１に
連通し、気体の閉込みは開始されていないか、第１２１
〕図以降では、斜線部で示す部分力佳記中央部に向って
ラジアルボート１３の部分を通１）越して閉込み空間１
６となっ・ζいる。Therefore, in Figures 12a to 12F showing the opening state of Radial Boat]:3, Figures 5a to 5
The part corresponding to the confined space 14 in Fig.
The radial boat 13 communicates with the suction port] 1, and whether gas entrapment has started or whether the 121st
] From the figure onwards, the partial force indicated by the diagonal line is 1) passed through the part of the radial boat 13 toward the center of the confined space 1.
It becomes 6 and there is ζ.
閉込み開始時の状態を示す第１２１〕図の閉込み空間１
Ｇの容積（吸込容量でもある。月よ、ラジアルボート１
３を小さくしてゆけば、いくらでも第５ａ図、第６ａ図
の閉込み空１用１１１の容積（すなわち、吸込容量の最
大値）に近つけることがでδる。Confined space 1 in Figure 121 showing the state at the start of confinement
Volume of G (also suction capacity. Moon, radial boat 1
3 can be made as close as possible to the volume of the confinement space 1 111 shown in FIGS. 5a and 6a (that is, the maximum value of the suction capacity).
つまり、スライド弁１をラジアルボート１３か全閉とな
る位置（第１３ａ図参照、ラジアルボート１３は全閉ゆ
え図中に表われない。）から図中」ニガへ移動させてラ
ジアルボート１３を開いてゆくととらに（第１３ｂ図、
第１３ｃ図参照）、吸込容量は、その最大値である」−
記全開時の値（第５ａ図、第６ａ図における値と同じ。In other words, the slide valve 1 is moved from the position where the radial boat 13 is fully closed (see Figure 13a, the radial boat 13 is not shown in the figure because it is fully closed) to the position shown in the figure, and the radial boat 13 is opened. Toyoku and Tora (Fig. 13b,
(see Figure 13c), the suction capacity is at its maximum value.
The value when fully open (same as the value in Figures 5a and 6a).
）から連続的に減少してｔΦく。) continuously decreases to tΦ.
このスライド弁１を用いた場合の吸込容量の変化を、１
−記第；；図のグラフ（ご表わすと曲線ＩＶのよう（ご
な１）、スライド弁１の移動距離（′の増加とともに、
（“天、＼より滑らが（コ杵調減少する状態を示し゛〔
いる。、二、二て′、Ｃ二〇（土うンアルポート１３が
゛開く直ｉｉす（第１３ａ図の状！′８１ご対応する。The change in suction capacity when using this slide valve 1 is 1
- The graph in the figure (represented by curve IV (Gona 1) shows that as the moving distance of slide valve 1 (' increases),
(“Heaven, ＼ more slippery (ko) indicates a state of decrease.”
There is. , 2, 2', C20 (corresponds to the state shown in Figure 13a!'81).
）のスライド弁１の位置を意１床している。), the position of the slide valve 1 is set to 1.
なお、１−記実施例では、スライド弁１の曲面２の幅１
１Ｉを端面１７の子方突出部１８の幅Ｗと等しくしたか
、本発明はこスジに限るものでなく、例えば１ｌｌｉ、
′…の力をよりに外＜ してちよく、この場合は、’！
’痔、’制御開始時のスライド弁の位置か変わる以外は
、実質的に１−記実施例と変わらない。一方、幅ｕ１の
ｈをより小さくすると、容量制御開始時に若１−１ミ連
続的な変化を生しるか、変化の大きさは第８図の不連続
部ＡＢに比べて小さい。In addition, in the embodiment 1-, the width 1 of the curved surface 2 of the slide valve 1 is
1I is made equal to the width W of the child protrusion 18 of the end face 17. The present invention is not limited to this; for example, 1lli,
In this case, it is better to remove the power of '...'!
``Hemorrhoid'' is substantially the same as the embodiment 1-, except that the position of the slide valve at the start of the control is changed. On the other hand, if h of the width u1 is made smaller, a continuous change will occur at the start of the capacity control, or the magnitude of the change will be smaller than the discontinuous portion AB in FIG.
また、」１記実施例におけるスライド弁１は端面３を全
本釣に、かつ、ロータ５，６の南すし方向に傾斜させて
形成したちのであったか、この数種々の形状のものがあ
り、以下池の実施例を示すとともに、」−記実施例と共
通する部分には同一番号を１；１シて説明を省略する。In addition, the slide valve 1 in the embodiment 1 was formed with the end face 3 fully lined and inclined in the direction south of the rotors 5 and 6, and there are several different shapes. In the following, embodiments of the pond will be shown, and parts common to the embodiments marked with "-" will be designated by the same numbers and their explanation will be omitted.
第１４図、第１５図に示すスライド弁ＩＡはスライド弁
１と共通の支線・１を有するものであるか、ここから垂
直方向に切除せずに適宜勾配をつけて略三角錐状に切除
して形成したちのである。The slide valve IA shown in FIGS. 14 and 15 has a common branch line 1 with the slide valve 1, or it can be cut out into a substantially triangular pyramid shape with an appropriate slope instead of being cut vertically. This is how it was formed.
第１６図、第１７図に示すスライド弁ＩＢもスライド弁
１と共通の交線４を有するものであるか、ここから垂直
方向にスライド弁ＩＩ３の下面まで切除せずに、途中ま
で切除したちのである。本発明は、ロータ室壁面の一部
を形成する曲面２の頂部２Ｇを角部２７より吸込ＩＩ側
に位置させるものであるか呟スライド弁ＩＢ先端の上記
切除部の１ζ方あるいは油力（図中左側）に続く延設部
２８の形状は、適宜吸込ケーシング７ａの形状、取扱い
〃スの種類等を考慮して決めればよい。The slide valve IB shown in FIGS. 16 and 17 also has a common line of intersection 4 with the slide valve 1, or is it possible to cut it out halfway from here in the vertical direction without cutting down to the lower surface of the slide valve II3? It is. In the present invention, the top part 2G of the curved surface 2 forming a part of the rotor chamber wall surface is located on the suction II side from the corner part 27. The shape of the extending portion 28 continuing to the middle left side) may be determined by appropriately considering the shape of the suction casing 7a, the type of handling space, etc.
したかって、延設部２８の前部はスライド弁１１３の本
体部分（切除部以外の部分）と同一断面形状であっても
よい。Therefore, the front portion of the extension portion 28 may have the same cross-sectional shape as the main body portion (other than the cutout portion) of the slide valve 113.
この例か、第１）（図、第１１３図に示すスライド弁１
（：で、第１１図中の長さ第２より若千長く形成したス
ライド弁ＩＣの材料の上面中間部に略Ｖ形の切除部２４
Ｊを加工して形成したものである。In this example, slide valve 1 shown in Fig. 113
(:) A substantially V-shaped cutout 24 is formed at the middle part of the upper surface of the material of the slide valve IC, which is formed to be slightly longer than the second length in FIG. 11.
It is formed by processing J.
図小するように、１−記スライド弁１と共通の曲面ンを
有Ｃるとともに、その前方に２点鎖線で示すように切除
部ン９を介して、スライド弁ＩＣの本体部分の同一断面
形状の延設部２８を一体的に形成し′ζある。As shown in the figure, the slide valve IC has a common curved surface C with the slide valve 1 shown in 1-, and the same cross section of the main body of the slide valve IC is inserted through the cutout part 9 in front of it as shown by the two-dot chain line. The extending portion 28 having the shape of `ζ is integrally formed.
なお、第１ｊ；図、第１５〕図では曲面２の部分と延設
部ン；；とを区別するため、便宜り実線と２直針■とを
（史って表現しである。In addition, in Figures 1j and 15, in order to distinguish between the curved surface 2 part and the extension part, the solid line and the two straight needles are expressed as (hi) for convenience.
第２（）図、第２１図に示すスライド弁ＩＤは、端面３
の外縁側の一部分だけ歯すし方向に傾斜させて形成した
ものである。The slide valve ID shown in FIG. 2() and FIG.
It is formed so that only a part of the outer edge side of the tooth is inclined in the direction of the teeth.
第２２図・−第２５図に示すスライド弁ＩＥ、］Ｆは交
線４がジグザグ状になるように形成したものであり、全
体として歯すし方向に傾斜している。The slide valves IE and ]F shown in FIGS. 22 and 25 are formed so that the intersection lines 4 are in a zigzag shape, and the slide valves IE and ]F shown in FIGS.
以上の実施例では、いずれも端面３、したかって交線４
の傾斜が歯すし方向に一致しているものを示したが、曲
面２の頂部２６か角部２７より吸込口側に位置している
限り、一致させなくてもよい。両者の不一致の結果、吸
込容量の変化に若干の不連続部が生しるのは、−に記幅
田とＷとの関係の場合と同様である。In each of the above embodiments, the end face 3, therefore the intersection line 4
Although the inclination of the curved surface 2 is shown to match the direction of the teeth, as long as the slope is located closer to the suction port than the top 26 or the corner 27 of the curved surface 2, it is not necessary to match the slope. As a result of the mismatch between the two, a slight discontinuity occurs in the change in suction capacity, as in the case of the relationship between the width field and W described in -.
また、曲面２はスライド弁１（ＩＡ、・・・、１ドも同
様）の軸心に関して対称で゛ある必要はなく、ロータ室
８に対してスライド弁１を偏心させて設けた場合は、頂
部２６は軸心からずれることになる。In addition, the curved surface 2 does not need to be symmetrical with respect to the axis of the slide valve 1 (the same applies to IA, . . . , 1D), and if the slide valve 1 is provided eccentrically with respect to the rotor chamber 8, The top portion 26 will be offset from the axis.
以上の説明より明らかなよう（ご、本発明によれば、ス
ライド弁の上部曲面の吸込１）側を、山形の頂部が曲面
の外縁側の角部より吸込口側に位置［るように形成しで
ある。このため、閉込み空間の形成か始まる位置あるい
はその近傍よりラジアルボートか開き、ロータの回転に
つれて閉込み空間か移動してゆく方向にラジアルボート
の開口部は拡大してゆく。この結果、スライド弁の移動
ととも（二、吸込容量をその最大値から連続的にある（
・は適宜そ２１に近い変化で減少させてゆくことかでｂ
る。したかって、圧縮気体として、水素、ヘリウムのよ
うな軽し・気体を用ν・でも、容量制御を開始時より連
続的に滑らかに行うことか可能となる−・ｉの効果を有
し′ζいる。As is clear from the above explanation (According to the present invention, the suction 1) side of the upper curved surface of the slide valve is formed so that the top of the chevron is located closer to the suction port than the corner on the outer edge side of the curved surface. It is. Therefore, the radial boat opens at or near the position where formation of the confined space begins, and as the rotor rotates, the opening of the radial boat expands in the direction in which the confined space moves. As a result, as the slide valve moves (2), the suction capacity is continuously increased from its maximum value (
・Is it possible to decrease it with a change close to that of 21 as appropriate?
Ru. Therefore, even if a light gas such as hydrogen or helium is used as the compressed gas, it is possible to control the capacity continuously and smoothly from the beginning, with the effect of -i. There is.
第１図は従来のスライド弁式スクリュ圧縮（幾の縦断面
図、第２図は第１図のＩ−Ｉ線断面図、第：）図、第・
１図は従来のスライド弁の平面図、正面図、第５ａ図・
第５ｒ図は第１図のスクリュ圧縮機の１νに込ｌ ｌ
１１１１Ｉ Ｍｉｌ’４部を示゛Ｌ１、第５ａ図から第
５「図に行（：二したかってロータか回転してゆく状態
を示す説１り団Ｉ １ｌｌｌｉ面図（たたし、便宜１一
端面１７部分の〕１ノナ／グは省略Ｙる。）、第（’ｒ
ｈ図〜第６１図は第５６１図〜第５１し１の×−Ｘ線断
面（断面円ｆｆ１ｉは第５ａ図にの１外表ボする９、）
の概略展開図、第７ａ図〜第゛７［図は従来のスライド
弁を移動させた時の第６ａ図〜第６ｒ図に対応する概略
展開図、第８図は吸込容量の変化を示すグラフ、第０図
、第１（）Ｍは本発明に係るスライド弁式スクリュ圧縮
機のスライド弁の平面図、正面図、第１１図は本発明に
係るスライド弁式スクリュ圧縮機の縦１０１面図、第］
２ａ図〜第１２ｆ図は本発明に係るスライド弁式スクリ
ュ圧縮機の第６ａ図〜第６ｆ図に対応する概略展開図、
第１３ａ図〜第１３ｃ図はスライド弁の位置とラジアル
ボートの開口状態との関係を示す」−記×−Ｘ線断面部
に対応する）軌路展開図、第１・１図〜第２５図はスラ
イド弁の池の実施例を示す部分平面図９部分圧面図であ
る。
１・・・スライド弁、２・・・曲面、３・・・スライド
弁の端面、５，６・・・スクリュロータ、’？ａ・・・
吸込ケーシング、８・・・ロータ室、１１・・・吸込１
１．１３・ラジアルボート、２６・・・頂部、２°７・
・角部。
特 許 出 願 人 株式会社神ノｊ製鋼所代 理
人 弁理士 野山 葆 はか２名第６ｄ図 第６ｅ図
第６ｆ図
第７ｄ図 第７ｅ図 第７ｆ図Figure 1 is a vertical cross-sectional view of a conventional slide valve type screw compression system, Figure 2 is a cross-sectional view taken along line I-I in Figure 1,
Figure 1 is a plan view, front view, and Figure 5a of a conventional slide valve.
Figure 5r is included in 1ν of the screw compressor in Figure 1.
1111I Show part 4 of Mil'. The 1st number/g of the end face 17 portion is omitted.), the 1st ('r
Figures h to 61 are x-X cross sections of Figures 561 to 51 (the cross-sectional circle ff1i is 9, which is the outer surface of Figure 5a)
Figures 7a to 7 are schematic developed diagrams corresponding to Figures 6a to 6r when the conventional slide valve is moved, and Figure 8 is a graph showing changes in suction capacity. , FIG. 0, and FIG. 1()M are plan views and front views of the slide valve of the slide valve type screw compressor according to the present invention, and FIG. 11 is a vertical 101 side view of the slide valve type screw compressor according to the present invention. , No.]
2a to 12f are schematic developed views corresponding to FIGS. 6a to 6f of the slide valve type screw compressor according to the present invention,
Figures 13a to 13c show the relationship between the position of the slide valve and the opening state of the radial boat (corresponding to the X-ray cross-section section) Track development diagrams, Figures 1 and 1 to 25 FIG. 9 is a partial plan view and a partial pressure surface view showing an embodiment of a slide valve pond. 1... Slide valve, 2... Curved surface, 3... End face of slide valve, 5, 6... Screw rotor, '? a...
Suction casing, 8... Rotor chamber, 11... Suction 1
1.13・Radial boat, 26...Top, 2°7・
・Corner. Patent applicant: Kannoj Steel Works Co., Ltd. Agent
Person Patent Attorney Noyama Aka 2 people Figure 6d Figure 6e Figure 6f Figure 7d Figure 7e Figure 7f
Claims (1)
面山形でかつ１１１形の各辺か円弧からなる曲面を有す
るとともに、ロータ軸方向に摺動１＝」イロこ設け＆）
Ｊｔ、ロータ室と吸込１］とを開口部面積調節’ｌｌ
’ｉｉヒに連進企ぜ′ζ容ｊｊｌ、ＩＩ、ｊ制御するス
ライド弁を備えたスクリュ圧縮ｉ敗において、スライド
弁の上記曲面の吸込［）側を、１−記１１１形の１１１
部か曲面の外縁側の角部１１）１吸込１１側に位置する
ように形成上かつ、このＩ！１：’ｒ１１を吸込ケーシ
ング内に突入ｎｆ ｆｉしに形１＆した、ことを′ｌ征
徴とするスライド弁式スクリュ）下階ｆｉｌ：箋６(1) The rotor between the male and female rotors has a chevron-shaped cross section that forms a part of the wall surface of the rotor chamber, each side of the 111 shape has a curved surface consisting of an arc, and the rotor is slidable in the axial direction.
Jt, rotor chamber and suction 1] by adjusting the opening area.
In a screw compression screw equipped with a slide valve to control the slide valve, the suction [) side of the curved surface of the slide valve is
The corner 11) on the outer edge side of the curved surface is formed so as to be located on the suction 11 side, and this I! 1: Slide valve type screw that plunges 'r11 into the suction casing and forms 1&, which is defined as 'l control) Lower floor fil: note 6
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5713984A JPS59188076A (en) | 1984-03-23 | 1984-03-23 | Slide valve type screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5713984A JPS59188076A (en) | 1984-03-23 | 1984-03-23 | Slide valve type screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59188076A true JPS59188076A (en) | 1984-10-25 |
| JPS6147993B2 JPS6147993B2 (en) | 1986-10-22 |
Family
ID=13047234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5713984A Granted JPS59188076A (en) | 1984-03-23 | 1984-03-23 | Slide valve type screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59188076A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61130785U (en) * | 1985-02-01 | 1986-08-15 | ||
| CN102656367A (en) * | 2009-12-22 | 2012-09-05 | 大金工业株式会社 | Single-screw compressor |
| WO2017174130A1 (en) * | 2016-04-06 | 2017-10-12 | Bitzer Kühlmaschinenbau Gmbh | Screw compressor |
-
1984
- 1984-03-23 JP JP5713984A patent/JPS59188076A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61130785U (en) * | 1985-02-01 | 1986-08-15 | ||
| CN102656367A (en) * | 2009-12-22 | 2012-09-05 | 大金工业株式会社 | Single-screw compressor |
| WO2017174130A1 (en) * | 2016-04-06 | 2017-10-12 | Bitzer Kühlmaschinenbau Gmbh | Screw compressor |
| CN109072919A (en) * | 2016-04-06 | 2018-12-21 | 比泽尔制冷设备有限公司 | Screw compressor |
| RU2713784C1 (en) * | 2016-04-06 | 2020-02-07 | Битцер Кюльмашиненбау Гмбх | Screw compressor (versions) |
| EP3859159A1 (en) * | 2016-04-06 | 2021-08-04 | BITZER Kühlmaschinenbau GmbH | Screw compressor |
| US11286935B2 (en) | 2016-04-06 | 2022-03-29 | Bitzer Kuehlmaschinenbau Gmbh | Screw compressor including control sliders that cooperate to form an inflow chamber for inflow from a compression chamber and with one slider provided with an outflow outlet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6147993B2 (en) | 1986-10-22 |
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