JPS5893981A - Control apparatus of compressor - Google Patents
Control apparatus of compressorInfo
- Publication number
- JPS5893981A JPS5893981A JP57203828A JP20382882A JPS5893981A JP S5893981 A JPS5893981 A JP S5893981A JP 57203828 A JP57203828 A JP 57203828A JP 20382882 A JP20382882 A JP 20382882A JP S5893981 A JPS5893981 A JP S5893981A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- pressure
- valve
- valve body
- supply line
- 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.)
- Pending
Links
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
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary-Type Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、コンプレッサの制御装置に関するもので、コ
ンプレッサの圧力供給ラインに最小圧力弁を設け、コン
プレッサがスイツチOFF されたとき、瞬間的にも
圧縮空気が圧力供給ラインに入れないようにしたもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressor control device, in which a minimum pressure valve is provided in the pressure supply line of the compressor, so that when the compressor is turned off, compressed air can be instantly supplied to the pressure supply line. It was made so that it could not be entered.
オイルの注入によるスクリュータイプのコンプレッサに
おいて、公知のものは圧力供給ラインに最小圧力弁又は
圧力保持弁を設け、コンプレッサ内に最小圧力を蓄積維
持し、コンプレッサが始動したときのオイルの発泡を阻
止している。この種の弁は構造が簡単で、弁体が設けら
れ、弁体はコンプレッサによる圧縮空気の流れ方向に抗
してバネに押圧され。A known screw type compressor with oil injection is equipped with a minimum pressure valve or pressure holding valve in the pressure supply line to accumulate and maintain a minimum pressure in the compressor and prevent oil from foaming when the compressor starts. ing. This type of valve has a simple structure and is provided with a valve body, which is pressed by a spring against the direction of flow of compressed air by the compressor.
コンプレッサ側が予め決定された最小圧力になると圧力
供給ラインf、遮断する。コンプレッサが小容量供給ラ
インに接続され、しかもOFFにスイッチされるか又は
アイドリンク状態にスイッチされた場合に、例えばドイ
ツ公開公報2938557号に記載されているような問
題が、特にコンパクトな設計であったり、高性能なもの
に生じる。コンプレッサがOFFになっても、コンプレ
ッサ内に圧力があるので、オイルが発泡し、この発泡と
同時に圧縮空気が圧力供給ラインに逃は込む。When the compressor side reaches a predetermined minimum pressure, the pressure supply line f is shut off. Problems such as those described in DE 29 38 557, particularly in a compact design, arise when the compressor is connected to a small capacity supply line and is switched OFF or switched into an idle state. or occur in high-performance products. Even when the compressor is turned off, there is pressure inside the compressor, so the oil foams, and at the same time as the foaming, compressed air escapes into the pressure supply line.
この発明の目的は、コンプレッサがOFFにスイッチさ
れても、圧縮空気が瞬時と言えども圧力供給ラインに逃
げ込まないような、上記タイプの制御装置を得ることに
ある。The object of the invention is to provide a control device of the above type in which compressed air does not escape into the pressure supply line even momentarily even when the compressor is switched off.
本発明によれば、この目的は特許請求の範囲(1)の特
徴によυ達成できる。最小圧力弁に直接制御圧力を当て
れば、コンプレッサがOFFにスイッチされるか、又は
アイドリンクの状態にスイッチされると同時に、極めて
簡易な手段で圧力供給ラインが遮断され、それによって
圧縮空気は決してコンプレッサから逃げることはない、
また、オイルが泡立つこともなく、圧力供給ラインに侵
入していくこともない。圧力は最小圧力弁によってコン
プレッサ内に維持され、これを継続して一定としたり、
連続的に変化させることができる。According to the invention, this object is achieved by the features of claim (1). By applying a direct control pressure to the minimum pressure valve, the pressure supply line is shut off in a very simple way as soon as the compressor is switched OFF or switched to idle link, so that the compressed air is never There is no escape from the compressor,
Also, the oil does not bubble up or enter the pressure supply line. Pressure is maintained in the compressor by a minimum pressure valve and can be kept constant or
It can be changed continuously.
最小圧力弁は遮断機能以外に、当該弁が開くまでの間の
コンプレッサの始動期間に蓄積スベき圧力を完全“に制
御することになる。本発明による有利な実施例は特許請
求の範囲(2)以下に記載されている。In addition to its shutoff function, the minimum pressure valve provides complete control over the accumulated pressure during the start-up period of the compressor until the valve opens. ) are listed below.
以下、本発明の一実施例を図面を参照して詳述する。Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
図において、コンプレッサ(1) ’に模式的に示す。In the figure, the compressor (1)' is schematically shown.
このコンプレッサ(1)の構成は、例えばドイツ公開公
報293557号に記載されているものでよい。最小圧
力弁(3)はコンプレッサの圧力供給ライン(2)上に
位置している。弁体(A)は、弁内で弁閉じ方向への制
御圧力を受けるピストンとして構成され、この実施例で
は、中間ピストン部材(6)と弁体部材(7)とからな
っている。The configuration of this compressor (1) may be, for example, that described in DE 293,557. The minimum pressure valve (3) is located on the pressure supply line (2) of the compressor. The valve body (A) is configured as a piston that receives control pressure in the valve closing direction within the valve, and in this embodiment, consists of an intermediate piston member (6) and a valve body member (7).
案内部(5)は環状の弁体収納部(4)中央に放射状の
ウェブによって保持され、弁体を構成する中間ピストン
部材(6)は案内部(5)内で移動可能である。弁体部
材(7)は図示する位置の圧力供給ライン(2> ff
i m断するもので、中間ピストン部材(6)内に案内
されている。この中間ピストン部材(6) rd長さ方
向において容器状に形成されている。案内部(5)の軸
方向に圧縮バネ(8)が設けられ、中間ピストン部材(
6)全弁閉じ方向に押圧している。中間ピストン部材(
6)内には圧縮バネ(9)が設けられ、弁体部材(7)
を閉じ方向に押圧している。The guide (5) is held in the center of the annular valve body housing (4) by a radial web, and the intermediate piston member (6) constituting the valve body is movable within the guide (5). The valve body member (7) is connected to the pressure supply line (2>ff
It is guided in the intermediate piston member (6). This intermediate piston member (6) is formed into a container shape in the rd length direction. A compression spring (8) is provided in the axial direction of the guide part (5), and the intermediate piston member (
6) All valves are pressed in the direction of closing. Intermediate piston member (
A compression spring (9) is provided inside the valve body member (7).
is pressed in the closing direction.
中間ピストン部材(6)は図では異なった2ケ所の位置
に示され、シールリングが設けられている。シールリン
グは案内部(5)と中間ピストン部材(6)との間の円
筒スペースαOからパル゛ブチヤンネルをシールしてい
る。ウェブ全弁して弁体収納部(4)に設けられた孔a
1)は、その一端が円筒スペースaQ内に連通し、オた
他端が制御圧力供給ライン(イ)に接続している。中間
ピストン部材(6)の反対側受圧面はバルブ内において
自由端面となっている。The intermediate piston member (6) is shown in two different positions in the figure and is provided with a sealing ring. The sealing ring seals the valve channel from the cylindrical space αO between the guide (5) and the intermediate piston member (6). Hole a provided in the valve body housing part (4) for the entire web valve
1) has one end communicating with the cylindrical space aQ, and the other end connected to the control pressure supply line (a). The opposite pressure receiving surface of the intermediate piston member (6) is a free end surface within the valve.
alは弁体部材(7)の圧力補償ラインであし、弁体部
材(7)の圧縮バネ(9) vcよって押圧される個含
バルブチャンネルに連通させる。C141は圧力測定孔
で、弁の押圧側に開口している。Al is a pressure compensating line of the valve body member (7) and communicates with the valve channel containing the valve body pressed by the compression spring (9) VC of the valve body member (7). C141 is a pressure measurement hole that opens on the pressure side of the valve.
最小圧力弁(3)はもどり工程機構を備えており、例え
ば3 barの圧力差で開き始めるよう設計されている
。3 barの圧力がコンプレッサの始動期間中に圧力
供給側に蓄積すると、圧力消費@lは圧力がゼロである
ため、弁体部材(7)はバルブシートα0から離れはじ
める。その時甘だ弁は圧力供給ライン(2)の絞り作用
全1〜でおり、その結果充分な操業圧力が圧力供給側に
急速に得られることとなる、中間ピストン部材(6)の
端面に当たる圧力が増大すると、中間ピストン部材(6
)は圧縮バネ(8)の力に抗して案内部(5)内に押圧
され、未だ圧力差があるため、弁体部材(7)はその環
状の肩で中間ピストン部材(6)に保持される。The minimum pressure valve (3) is equipped with a return stroke mechanism and is designed to start opening at a pressure difference of, for example, 3 bar. When a pressure of 3 bar accumulates on the pressure supply side during the start-up period of the compressor, the valve body member (7) begins to move away from the valve seat α0, since the pressure consumption @l is zero pressure. At that time, the amada valve has a throttling effect on the pressure supply line (2), so that the pressure impinging on the end face of the intermediate piston member (6) is increased so that sufficient operating pressure is quickly obtained on the pressure supply side. When increased, the intermediate piston member (6
) is pressed into the guide (5) against the force of the compression spring (8), and since there is still a pressure difference, the valve body member (7) is held by its annular shoulder in the intermediate piston member (6). be done.
弁は、例えば圧力供給側の7 barの圧力で全断面域
が開き、圧力供給側と圧力消費側との間のバルブ圧力差
がなくなるよう設計されている。The valve is designed such that at a pressure of, for example, 7 bar on the pressure supply side, the entire cross-sectional area opens and there is no valve pressure difference between the pressure supply side and the pressure consumption side.
この作用状態において、弁体部材(7)の両側に圧力差
がなくなると直ちに圧縮バネ(9)が働いて弁体部材(
7)全閉鎖位置に押圧する。圧力供給ライン(2)が大
気に通じると弁体部材(7)の背面上の圧力は円筒スペ
ースα1内に中間ピストン部材(6)全保持するに充分
なものとなる。In this operating state, as soon as there is no pressure difference on both sides of the valve body member (7), the compression spring (9) works to act on the valve body member (7).
7) Press to fully closed position. When the pressure supply line (2) opens to the atmosphere, the pressure on the back side of the valve body member (7) is sufficient to hold the intermediate piston member (6) entirely within the cylindrical space α1.
一方、圧縮バネ(9)は図の上半側に示すように弁体部
材(7)全閉鎖位置に保持している。On the other hand, the compression spring (9) holds the valve body member (7) in the fully closed position as shown in the upper half of the figure.
圧力消費側の圧力が小である場合、例えばコン7 L/
ツサが圧力槽にでは々〈単にラインに接続されていて、
その際にコンプレッサがOFFにスイッチされるか又は
アイドリンクの状態にスイッチされると、圧力消費側の
圧力はコンプレッサ内の圧力よりも早く減圧する。If the pressure on the pressure consumption side is small, for example, con 7 L/
The shank is not connected to the pressure tank (simply connected to the line).
If the compressor is then switched OFF or switched to an idle state, the pressure on the pressure consumer side decreases faster than the pressure in the compressor.
この場合、コンプレッサがOFFになっても弁はすぐに
は閉じず、圧縮空気がコンプレッサから圧力供給ライン
に逃げ、コンプレッサ内のオイルを発泡させる。これを
避ける友め、制御圧力供給ライン02には反転弁00が
設けられ、模式的に図示するように圧力放出下のコンプ
レッサと接続しでいる、反転弁aQはコンプレッサのコ
ントロールユニット(図示せず)と連結しているから、
コンプレッサが始動すると、弁の円筒スペースへりに通
じている制御圧力供給ラインθ2が大気に通じることに
なる。In this case, even when the compressor is turned off, the valve does not close immediately, and compressed air escapes from the compressor into the pressure supply line, causing the oil in the compressor to foam. To avoid this, the control pressure supply line 02 is provided with a reversing valve 00, which is connected to the compressor under pressure release as schematically shown, and the reversing valve aQ is connected to the compressor control unit (not shown). ), so
When the compressor starts, the control pressure supply line θ2 leading to the cylindrical space edge of the valve opens to the atmosphere.
コンプレッサがOFF又はアイドリンクの状態に切換え
られると、同時に円筒スペース01は反転弁(l→金全
弁て圧力供給側−またはコンプレッサ内の圧力と接続す
るとともに、円筒スペース00内の圧力は、弁体部材(
7)の端面上の圧力と同じ圧力となり、弁は圧縮バネ(
s) (9)によって11ちに閉鎖される。When the compressor is switched to OFF or idle link state, at the same time, the cylindrical space 01 is connected to the reversing valve (l→gold valve) to the pressure supply side or the pressure in the compressor, and the pressure in the cylindrical space 00 is connected to the valve Body members (
The pressure becomes the same as the pressure on the end face of 7), and the valve is compressed by the compression spring (
s) Closed immediately by (9).
特定の圧力を円筒スペース0q内に蓄積したシ、コンプ
レッサの始動期間中であっても特別な方法で圧力を変化
させるコントロールユニットヲ、制御圧力供給ラインα
埠に連結することも可能である。A control unit that accumulates a specific pressure in the cylindrical space 0q, changes the pressure in a special way even during the start-up period of the compressor, and a control pressure supply line α.
It is also possible to connect to a wharf.
最小圧力弁を閉じ方向に圧力制御すれば、コンプレッサ
内のオイルの発泡について有利であるばかシでなく、圧
力供給ライン(2)′t−粉状媒体などのために移送ラ
インに連結する場合においても有利である。そのような
場合、粉状物を移送ラインに添加するためにコンプレッ
サ(1)ケアイド11ングの状態にスイッチすると、円
筒スペース(1(車内のコントロール圧力は、圧力供給
ライン(2)を遮断状態にし、しかも移送システムi
OFFにしたとぎに粉状物に渦流が生じたシ、吹き飛ば
されたりすることがないよう保障する。Pressure control in the closing direction of the minimum pressure valve is advantageous in preventing oil foaming in the compressor, and in connection with the pressure supply line (2)'t-transfer line for powdered media, etc. is also advantageous. In such a case, when switching the compressor (1) to the care-aided condition for adding powder to the transfer line, the control pressure in the cylindrical space (1) will switch off the pressure supply line (2). , and the transfer system i
This ensures that the powder does not create a whirlpool or be blown away when it is turned off.
上記した最小圧力弁の代わりに他の弁構造のものを用い
てもよい。その弁体はピストンそのものとして構成され
るか、或tま実″ 質的なピストンVこ連結されるので
、制御圧力を圧縮バネが押圧している4JAI+に当て
ることによって、弁体は1211展に閉じ位置に移動す
る。Other valve structures may be used in place of the minimum pressure valve described above. The valve body is configured as a piston itself or is connected to a real piston, so that by applying control pressure to the 4JAI+ pressed by the compression spring, the valve body can be Move to closed position.
反転ヲ[08はコンプレッサの電気コントロールユニッ
トに連結されたソレノイドバルブであることが好ましい
。Preferably, the inverter 08 is a solenoid valve connected to the compressor's electrical control unit.
図面は本発明の装置の縦断面図である。 図において、(A)は弁体である。 The drawing is a longitudinal sectional view of the device according to the invention. In the figure, (A) is a valve body.
Claims (6)
レッサ用の制御装置であって、圧力供給ラインに最小圧
力弁を設け、その弁体が圧縮バネによシ圧力消費fll
lを押圧されている装置において、弁体が、弁閉じ方向
への制御圧力管受けるピストンとして構成されているこ
とを特徴とするコンプレッサの制御装置。(1) A control device for an oil-injected screw type compressor, in which a minimum pressure valve is provided in the pressure supply line, and the valve body uses a compression spring to consume pressure.
1. A control device for a compressor, wherein the valve body is configured as a piston that receives a control pressure pipe in the valve closing direction.
介して圧力供給側に連絡せしめられ、前記制御圧力供給
ラインに反転弁が位置している特許請求の範囲(1)記
載のコンプレッサの制御装置。(2) The control of the compressor according to claim (1), wherein the valve body that holds the piston is connected to the pressure supply side via a control pressure supply line, and a reversing valve is located in the control pressure supply line. Device.
ントロールユニットに接続されている特許請求の範囲(
2)記載のコンプレッサの制御装置。(3) Claims in which the reversing valve is connected to a control unit that turns the compressor on and off (
2) A control device for the compressor described above.
形成した案内を有し、この円筒スペース内には、弁閉じ
方向にピストンたる弁体全押圧する圧縮バネが設けられ
、円筒スペースが制御圧力供給ラインに接続している特
許請求の範囲(1)、 (2)又は(3)記載のコンプ
レッサの制御装置。(4) The minimum pressure valve has a guide that forms a cylindrical space for the piston, and within this cylindrical space is provided a compression spring that fully presses the valve body, which is the piston, in the valve closing direction, and the cylindrical space has a guide that forms a cylindrical space for the piston. A compressor control device according to claim (1), (2) or (3), which is connected to a supply line.
部材と該ピストン部材に接続される弁体部材とから構成
されている特許請求の範囲(1)、(2)、(3)又は
(4)記載のコンプレッサの制御装置。(5) Claims (1), (2), and (3), in which the valve body is composed of a piston member receiving control pressure in the valve closing direction and a valve body member connected to the piston member; (4) A control device for a compressor as described.
ストン部材と弁体部材間に別の圧縮バネが位置している
特許請求の範囲(5)記載のコンプレッサの制御装置。(6) The compressor control device according to claim (5), wherein the valve body member is movable within the piston member, and another compression spring is located between the piston member and the valve body member.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813146535 DE3146535A1 (en) | 1981-11-24 | 1981-11-24 | "CONTROL DEVICE FOR A COMPRESSOR" |
DE31465358 | 1981-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5893981A true JPS5893981A (en) | 1983-06-03 |
Family
ID=6147071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57203828A Pending JPS5893981A (en) | 1981-11-24 | 1982-11-22 | Control apparatus of compressor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0081711A1 (en) |
JP (1) | JPS5893981A (en) |
AU (1) | AU9082682A (en) |
BR (1) | BR8206781A (en) |
DD (1) | DD207560A5 (en) |
DE (1) | DE3146535A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5803715A (en) * | 1991-10-14 | 1998-09-08 | Cash Engineering Research Pty. Ltd. | Inlet control combination for a compressor system |
JPH07500167A (en) * | 1991-10-14 | 1995-01-05 | キャッシュ・エンジニアリング・リサーチ・プロプライエタリ・リミテッド | Inlet control complex for compressor systems |
BR112019005050A2 (en) | 2016-09-21 | 2019-06-18 | Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh | minimum pressure valve for a screw compressor for a vehicle, especially a utility vehicle |
CN110307142B (en) * | 2019-06-28 | 2020-09-29 | 大唐半导体科技有限公司 | Control method of air compressor and air compressor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123093A (en) * | 1964-03-03 | Minimum pressure delivery valve assembly | ||
IT1103276B (en) * | 1977-05-25 | 1985-10-14 | Hydrovane Compressor | OIL SEAL CAPSULISING COMPRESSOR |
DE2938557A1 (en) * | 1979-09-24 | 1981-04-23 | Isartaler Schraubenkompressoren Gmbh, 8192 Gertsried | Motor driven twin screw rotor compressor - is liquid cooled and lubricated by injection into compression chamber |
-
1981
- 1981-11-24 DE DE19813146535 patent/DE3146535A1/en not_active Withdrawn
-
1982
- 1982-11-22 DD DD24513582A patent/DD207560A5/en unknown
- 1982-11-22 JP JP57203828A patent/JPS5893981A/en active Pending
- 1982-11-23 BR BR8206781A patent/BR8206781A/en unknown
- 1982-11-23 AU AU90826/82A patent/AU9082682A/en not_active Abandoned
- 1982-11-24 EP EP82110874A patent/EP0081711A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DD207560A5 (en) | 1984-03-07 |
EP0081711A1 (en) | 1983-06-22 |
BR8206781A (en) | 1983-10-04 |
DE3146535A1 (en) | 1983-06-01 |
AU9082682A (en) | 1983-06-02 |
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