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 device

Info

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
Application number
JP8807193A
Other languages
Japanese (ja)
Other versions
JP2602163B2 (en
Inventor
Takashi Kondo
高士 近藤
Yoshimi Hori
良美 堀
Yuji Kataoka
雄二 片岡
Keiji Yamada
啓治 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MIKUNI JUKOGYO
MIKUNI JUKOGYO KK
Original Assignee
MIKUNI JUKOGYO
MIKUNI JUKOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MIKUNI JUKOGYO, MIKUNI JUKOGYO KK filed Critical MIKUNI JUKOGYO
Priority to JP5088071A priority Critical patent/JP2602163B2/en
Publication of JPH06272668A publication Critical patent/JPH06272668A/en
Application granted granted Critical
Publication of JP2602163B2 publication Critical patent/JP2602163B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

PURPOSE:To always ensure the self-contained state of a compressed air source necessary for the open and close control of a drain discharge valve during the operation of a compressor and the no-load operation thereof, and enable a piston valve for drain discharge and an unloader valve for the no-load operation of the compressor to operate at all times under the low pressure of the ressed air. CONSTITUTION:Thecompressed air delivered from the first-stage cylinder 11 is made to pass through a cooler 111 and a water separator 112 and, then, absorbed into the second-stage cylinder 12. At the same time, the compressed air from the separator 112 is made to flow into a control receiver tank 22 via a nonreturn valve 21. Also, the compressed air in the tank 22 is made to flow into drain discharge piston valves 41, 42 and 43 of each-stage cylinder via a three-way electromagnetic valve 31 and four-way valve 32 laid in parallel to each other.

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、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.

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

【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.

【符合の説明】[Explanation of sign]

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)

【特許請求の範囲】[Claims] 【請求項１】 １段シリンダの吐出圧力空気を、冷却器
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. 【請求項２】 前記三方口電磁弁を一定時間毎に開閉で
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. 【請求項３】 前記制御レシーバタンクから各段シリン
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.
JP5088071A 1993-03-22 1993-03-22 Multi-stage reciprocating air compressor Expired - Fee Related JP2602163B2 (en)

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

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Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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

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