JPH06272668A - Drain discharge for multistage reciprocating air compressor and no-load operation device - Google Patents
Drain discharge for multistage reciprocating air compressor and no-load operation deviceInfo
- Publication number
- JPH06272668A JPH06272668A JP8807193A JP8807193A JPH06272668A JP H06272668 A JPH06272668 A JP H06272668A JP 8807193 A JP8807193 A JP 8807193A JP 8807193 A JP8807193 A JP 8807193A JP H06272668 A JPH06272668 A JP H06272668A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- stage cylinder
- drain discharge
- load operation
- pressure air
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、多段往復動空気圧縮機
の各段シリンダから吐出した圧力空気中の凝縮油水分
(以下、ドレンという。)の排出装置及び圧縮機の無負
荷運転装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for discharging condensed oil moisture (hereinafter referred to as "drain") in compressed air discharged from each stage cylinder of a multistage reciprocating air compressor and a no-load operating device for the compressor. .
【0002】[0002]
【従来の技術】従来の多段往復動空気圧縮機では、各段
シリンダから吐出した圧力空気中のドレンの排出は、各
段シリンダの吐出管から冷却器及び水分離器を経て圧力
空気で開閉するピストン弁を介して行い、また、圧縮機
の始動時には、圧力空気で作動するアンローダ弁装置を
介して行つていたが、前記ピストン弁及びアンローダ弁
装置の圧力空気源は、減圧弁を通さずに、圧縮機の最終
段シリンダーから吐出される高圧空気溜を使用する場合
は、前記ピストン弁装置及び前記アンローダ弁装置は、
コスト高になるほか、高圧空気に対する厳しい安全管理
を行わねばならない欠点があった。また、前記ピストン
弁や前記アンローダ弁装置の圧力空気源を、最終段のシ
リンダの吐出管から減圧弁を経て一定圧力に減圧した空
気から得る場合は、次の欠点が生じた。2. Description of the Related Art In a conventional multi-stage reciprocating air compressor, drainage in the pressure air discharged from each stage cylinder is opened and closed with pressure air from a discharge pipe of each stage cylinder through a cooler and a water separator. Although it was done via a piston valve, and at the time of starting the compressor, it was done via an unloader valve device that operates with pressure air, but the pressure air source of the piston valve and unloader valve device does not pass through the pressure reducing valve. In the case of using a high pressure air reservoir discharged from the final stage cylinder of the compressor, the piston valve device and the unloader valve device,
In addition to the high cost, there is a drawback that strict safety control for high pressure air must be performed. Further, when the pressure air source of the piston valve or the unloader valve device is obtained from the air whose pressure is reduced to a constant pressure from the discharge pipe of the final stage cylinder through the pressure reducing valve, the following drawbacks occur.
【0003】すなわち、圧縮機運転時に、圧縮機から吐
出される高圧空気溜に圧力空気がないときは、別に備え
た小型空気圧縮機から前記ピストン弁作動用の圧力空気
の供給を受けないかぎり、最終段シリンダの吐出空気に
依存することになるが、この吐出空気を所定圧力に上げ
るには、数分の時間を要し、その間、各段シリンダのド
レンの排出を制御することができない欠点があり、ま
た、その間は、圧縮機の無負荷運転を行うアンローダ弁
装置の作動もできない欠点があつた。That is, when there is no pressurized air in the high-pressure air reservoir discharged from the compressor during operation of the compressor, unless a small air compressor provided separately supplies the pressurized air for operating the piston valve, Although it depends on the discharge air of the final stage cylinder, it takes several minutes to raise the discharge air to a predetermined pressure, and the drain discharge of each stage cylinder cannot be controlled during that time. However, during that time, there is a drawback that the unloader valve device for performing no-load operation of the compressor cannot be operated.
【0004】[0004]
【発明が解決しようとする課題】本発明は、圧縮機運転
時のドレン排出弁の開閉制御及び圧縮機の無負荷運転に
必要な圧力空気源を常時自蔵できるようにすると共に、
低圧の圧力空気でドレン排出のピストン弁を常時作動で
きるようにした多段往復動空気圧縮機のドレン排出を提
供するものである。DISCLOSURE OF THE INVENTION The present invention makes it possible to constantly self-store the pressure air source required for the opening / closing control of the drain discharge valve during the operation of the compressor and the no-load operation of the compressor.
(EN) A drain discharge of a multi-stage reciprocating air compressor in which a drain discharge piston valve can always be operated by low pressure air.
【0005】また、本発明は、一定時間毎にドレンを自
動的に外部に排出できるようにした多段往復動空気圧縮
機のドレン排出を提供するものである。The present invention also provides drain discharge of a multi-stage reciprocating air compressor in which the drain can be automatically discharged to the outside at regular intervals.
【0006】[0006]
【課題を解決するための手段】本発明は上記の目的を達
成するため、図示するように、1段シリンダ11の吐出
圧力空気を、冷却器111及び水分離器112を通した
のち、2段シリンダ12に吸入させると共に、前記水分
離器112から出た圧力空気を逆止弁21を経て、制御
レシーバタンク22に流出できるようにし、前記制御レ
シーバタンク22内の圧力空気を、並列においた三方口
電磁弁31及び四方弁32を通つて各段シリンダのドレ
ン排出用ピストン弁41,42,43に流入できるよう
にしたものである。In order to achieve the above-mentioned object, the present invention, as shown in the figure, passes the discharge pressure air of the first-stage cylinder 11 through a cooler 111 and a water separator 112, and then a second stage. The pressure air in the control receiver tank 22 is allowed to flow into the control receiver tank 22 through the check valve 21 while being sucked into the cylinder 12, and the pressure air in the control receiver tank 22 is arranged in parallel. The inlet solenoid valve 31 and the four-way valve 32 are allowed to flow into the drain discharge piston valves 41, 42, 43 of each stage cylinder.
【0007】また、本発明は、前記発明において、前記
三方口電磁弁31を一定時間毎に開閉できるようにした
ものである。Further, in the present invention, in the above invention, the three-way solenoid valve 31 can be opened and closed at regular intervals.
【0008】更に、本発明は、前記発明において、前記
制御レシーバタンク22から各段シリンダのドレン排出
用ピストン弁41,42,43に流入させる圧力空気と
は別に、前記制御レシーバタンク22内の圧力空気を、
並列におかれた三方口電磁弁33及び三方弁34を通つ
て各段シリンダのアンローダ弁装置51,52,53に
流入できるようにしたものである。Further, in the present invention, in addition to the pressure air flowing from the control receiver tank 22 to the drain discharge piston valves 41, 42, 43 of the respective stage cylinders, the pressure in the control receiver tank 22 is different. The air
The three-way solenoid valve 33 and the three-way valve 34 arranged in parallel are allowed to flow into the unloader valve device 51, 52, 53 of each stage cylinder.
【0009】[0009]
【実施例】10は多段往復動空気圧縮機で、11は1段
シリンダ、12は2段シリンダ、13は3段シリンダで
ある。111,112は1段シリンダ11の冷却器及び
水分離器、121,122は2段シリンダ12の冷却器
及び水分離器、131,132は3段シリンダ13の冷
却器及び水分離器である。EXAMPLE 10 is a multi-stage reciprocating air compressor, 11 is a 1-stage cylinder, 12 is a 2-stage cylinder, and 13 is a 3-stage cylinder. 111 and 112 are coolers and water separators for the first-stage cylinder 11, 121 and 122 are coolers and water separators for the second-stage cylinder 12, and 131 and 132 are coolers and water separators for the third-stage cylinder 13.
【0010】また、51は1段シリンダ11のアンロー
ダ弁装置、52は2段シリンダ12のアンローダ弁装
置、53は3段シリンダ13のアンローダ弁装置であ
る。Reference numeral 51 is an unloader valve device for the first stage cylinder 11, 52 is an unloader valve device for the second stage cylinder 12, and 53 is an unloader valve device for the third stage cylinder 13.
【0011】22は、1段シリンダ11から冷却器11
1、水分離器112及び逆止弁21を経て圧力空気を流
入できるようにした制御レシーバタンクである。Reference numeral 22 denotes the first stage cylinder 11 to the cooler 11
1, a control receiver tank that allows pressurized air to flow in through the water separator 112 and the check valve 21.
【0012】31,32はタンク22から流出する圧力
空気を流入できるようにした、並列配置の三方口電磁弁
及び四方弁で、各段シリンダのドレン排出用ピストン弁
41,42,43に圧力空気を流入できるようにしてい
る。Numerals 31 and 32 are three-way solenoid valves and four-way valves arranged in parallel so that the pressure air flowing out from the tank 22 can flow in, and pressure air is applied to the drain discharge piston valves 41, 42, 43 of each stage cylinder. To allow inflow.
【0013】33,34は、タンク22からドレン排出
用ピストン弁41,42,43に流出させる圧力空気と
は別に、タンク22から流出させる圧力空気を流入でき
るようにした並列配置の三方口電磁弁及び三方弁で、各
段シリンダのアンローダ弁装置51,52,53に圧力
空気を流入できるようにしている。33 and 34 are three-way solenoid valves arranged in parallel so that pressure air flowing out from the tank 22 can be introduced in addition to pressure air flowing out from the tank 22 to the drain discharge piston valves 41, 42, 43. The three-way valve allows pressurized air to flow into the unloader valve device 51, 52, 53 of each stage cylinder.
【0014】ドレン排出用ピストン弁41,42,43
は、前述した制御レシーバタンク22から圧力空気源を
得て作動すると共に、各段シリンダの水分離器112,
122,132から排出するドレンをドレン排出口70
に流出できるようにしたものである。なお、411は二
方口電磁弁である。Drain discharge piston valves 41, 42, 43
Is operated by obtaining a pressure air source from the control receiver tank 22 described above, and also the water separator 112,
Drain discharge port 70
It was made possible to be leaked to. 411 is a two-way solenoid valve.
【0015】電磁弁31,33は、通電により「開」、
電磁弁411は、通電で「閉」となるが、数秒後には
「開」となるものである。なお、電磁弁31は、タイマ
ー(図示しない)により、一定時間毎に通電、非通電を
繰り返すことができる。The solenoid valves 31 and 33 are "opened" when energized,
The solenoid valve 411 is “closed” when energized, but is “open” after a few seconds. The solenoid valve 31 can be repeatedly energized and de-energized at regular intervals by a timer (not shown).
【0016】四方弁32は、電磁弁31の動作に関係な
く、手動で、ピストン弁の開閉を行うことができる、手
動ドレン排出弁である。三方弁34は、電磁弁33の動
作に関係なく、手動で、アンローダ弁の開閉を行うこと
ができる、手動アンロード起動弁である。The four-way valve 32 is a manual drain discharge valve capable of manually opening and closing the piston valve regardless of the operation of the solenoid valve 31. The three-way valve 34 is a manual unload start valve that can open and close the unloader valve manually regardless of the operation of the solenoid valve 33.
【0017】611,612,613,614はストツ
プ弁(閉)、621,622,623はストツプ弁
(開)である。また、133,134は逆止弁及びスト
ツプ弁(開)、135は高圧空気溜である。Reference numerals 611, 612, 613, and 614 are stop valves (closed), and reference numerals 621, 622, and 623 are stop valves (open). Further, 133 and 134 are check valves and stop valves (open), and 135 is a high pressure air reservoir.
【0018】[0018]
【作用】従って、電磁弁31,33,411に通電すれ
ば、タンク22の圧力空気は、電磁弁31を通ってピス
トン弁41,42,43を閉じ各段シリンダからドレン
排出口を閉じる。また、タンク22の圧力空気は、電磁
弁33を通ってアンローダ弁51,52,53を開く。
また、タンク22の圧力空気は、電磁弁411を数秒間
閉じたのち開いて、電磁弁31が開いている間、ドレン
を排出する。なお、タンク22に圧力空気がない場合
は、電磁弁411は一時的に閉じており、圧縮機始動と
共に、1段吐出圧力をタンク22に数秒間で蓄圧する。
また、別に設置された操作盤のタイマ信号によって、電
磁弁31は通電、非通電を時間毎に繰り返し、ピストン
弁41,42,43を開閉し、ドレンを間欠的に排出す
る。また、電磁弁33の通電により、アンローダ弁5
1,52,53は作動して無負荷運転を行い、非通電で
負荷運転に変る。Therefore, when the solenoid valves 31, 33, 411 are energized, the pressurized air in the tank 22 passes through the solenoid valve 31, closes the piston valves 41, 42, 43, and closes the drain discharge port from each stage cylinder. Further, the pressurized air in the tank 22 passes through the solenoid valve 33 and opens the unloader valves 51, 52, 53.
Further, the pressurized air in the tank 22 closes the solenoid valve 411 for a few seconds and then opens it, and drains the drain while the solenoid valve 31 is open. When there is no pressurized air in the tank 22, the solenoid valve 411 is temporarily closed, and the first-stage discharge pressure is accumulated in the tank 22 for several seconds when the compressor is started.
In addition, the solenoid valve 31 repeats energization and non-energization for each time by a timer signal of a separately installed operation panel, opens and closes the piston valves 41, 42, 43 to intermittently discharge the drain. Further, by energizing the solenoid valve 33, the unloader valve 5
1, 52 and 53 operate to perform no-load operation, and change to load operation when de-energized.
【0019】[0019]
【発明の効果】本発明は、以上のように、従来、空気圧
縮機と別に設けた吐出高圧空気溜135に高圧空気がな
い場合や、別に備えた小型空気圧縮機(図示しない)が
ない場合でも、多段往復動空気圧縮機10を直ちに始動
して各段シリンダ11,12,13のドレン排出制御を
行うことができ、また、本発明は、ドレン排出及び圧縮
機の無負荷運転のため、圧力空気源に低圧空気を使用で
きるので、それだけドレン排出用ピストン弁装置やアン
ローダ弁装置をコスト安にできる。更に本発明は、圧縮
機の運転停止中でも必要に応じ、ドレン排出ができるよ
うになった。As described above, according to the present invention, there is no high pressure air in the discharge high pressure air reservoir 135 which is conventionally provided separately from the air compressor, or when there is no separately provided small air compressor (not shown). However, the multistage reciprocating air compressor 10 can be immediately started to control the drain discharge of the cylinders 11, 12, and 13 of each stage. Further, the present invention, because of drain discharge and no-load operation of the compressor, Since low pressure air can be used as the pressure air source, the cost of the drain discharge piston valve device and the unloader valve device can be reduced accordingly. Further, according to the present invention, the drain can be discharged as needed even when the compressor is not operating.
【図1】本発明装置の概略を示すブロツク線図である。FIG. 1 is a block diagram showing an outline of a device of the present invention.
11,12,13 各段シリンダ 111,121,131 冷却器 112,122,123 水分離器 21 逆止弁 22 制御レシーバタンク 31,33 三方口電磁弁 32 四方弁 34 三方弁 41,42,43 ドレン排出用ピストン弁 51,52,53 アンローダ弁装置 11, 12, 13 Stage cylinders 111, 121, 131 Cooler 112, 122, 123 Water separator 21 Check valve 22 Control receiver tank 31, 33 Three-way solenoid valve 32 Four-way valve 34 Three-way valve 41, 42, 43 Drain Discharge piston valve 51, 52, 53 Unloader valve device
Claims (3)
及び水分離器を通したのち、2段シリンダに吸入させる
と共に、前記水分離器を通した圧力空気を逆止弁を経
て、制御レシーバタンクに流出できるようにし、前記制
御レシーバタンク内の圧力空気を、並列においた三方口
電磁弁及び四方弁を通つて各段シリンダのドレン排出用
ピストン弁に流入できるようにしたことを特徴とする多
段往復動空気圧縮機のドレン排出及び無負荷運転装置。1. The discharge pressure air of a first stage cylinder is sucked into a second stage cylinder after passing through a cooler and a water separator, and the pressure air passing through said water separator is controlled via a check valve. The pressure air in the control receiver tank is allowed to flow into a drain discharge piston valve of each stage cylinder through a three-way solenoid valve and a four-way valve arranged in parallel. Drain discharge and no-load operation device for multi-stage reciprocating air compressor.
きるように装置した請求項1記載の多段往復動空気圧縮
機のドレン排出及び無負荷運転装置。2. The drainage and no-load operation device for a multistage reciprocating air compressor according to claim 1, wherein the three-way solenoid valve is opened / closed at regular intervals.
ダのドレン排出用ピストン弁に流入させる圧力空気の流
出回路とは別に、前記制御レシーバタンク内の圧力空気
を、並列におかれた三方口電磁弁及び三方弁を通つて各
段シリンダのアンローダ弁に流入できるようにした請求
項1記載の多段往復動空気圧縮機のドレン排出及び無負
荷運転装置。3. A three-way solenoid valve in which the pressure air in the control receiver tank is arranged in parallel, separately from the pressure air outflow circuit which flows from the control receiver tank into the drain valve of the drain cylinder of each stage cylinder. 2. A drain discharge and no-load operation device for a multi-stage reciprocating air compressor according to claim 1, wherein the three-way valve is allowed to flow into the unloader valve of each stage cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5088071A JP2602163B2 (en) | 1993-03-22 | 1993-03-22 | Multi-stage reciprocating air compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5088071A JP2602163B2 (en) | 1993-03-22 | 1993-03-22 | Multi-stage reciprocating air compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06272668A true JPH06272668A (en) | 1994-09-27 |
JP2602163B2 JP2602163B2 (en) | 1997-04-23 |
Family
ID=13932628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5088071A Expired - Fee Related JP2602163B2 (en) | 1993-03-22 | 1993-03-22 | Multi-stage reciprocating air compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2602163B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001044712A1 (en) * | 1999-12-17 | 2001-06-21 | Beko Technologies Gmbh | Method for draining a condensate and a condensate drain |
WO2007025357A1 (en) * | 2005-09-02 | 2007-03-08 | Atlas Copco Crepelle S.A.S. | Installation for high pressure compression with several stages |
JP2019044607A (en) * | 2017-08-30 | 2019-03-22 | 株式会社日立産機システム | Compression device |
-
1993
- 1993-03-22 JP JP5088071A patent/JP2602163B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001044712A1 (en) * | 1999-12-17 | 2001-06-21 | Beko Technologies Gmbh | Method for draining a condensate and a condensate drain |
US6588443B2 (en) | 1999-12-17 | 2003-07-08 | Beko Technologies Gmbh | Method of draining condensate and condensate drain device |
WO2007025357A1 (en) * | 2005-09-02 | 2007-03-08 | Atlas Copco Crepelle S.A.S. | Installation for high pressure compression with several stages |
FR2890418A1 (en) * | 2005-09-02 | 2007-03-09 | Atlas Copco Crepelle S A S | HIGH PRESSURE COMPRESSION INSTALLATION WITH MULTIPLE FLOORS |
KR101012783B1 (en) * | 2005-09-02 | 2011-02-08 | 아뜰라스 꼬쁘꼬 크레뻴르 에스.아.에스. | Installation for high pressure compression with several stages |
US8277197B2 (en) | 2005-09-02 | 2012-10-02 | Atlas Copco Crepelle S.A.S. | Installation for high pressure compression with several stages |
JP2019044607A (en) * | 2017-08-30 | 2019-03-22 | 株式会社日立産機システム | Compression device |
Also Published As
Publication number | Publication date |
---|---|
JP2602163B2 (en) | 1997-04-23 |
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