JP2009216099A - Cooling device for working fluid - Google Patents

Cooling device for working fluid Download PDF

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Publication number
JP2009216099A
JP2009216099A JP2009090495A JP2009090495A JP2009216099A JP 2009216099 A JP2009216099 A JP 2009216099A JP 2009090495 A JP2009090495 A JP 2009090495A JP 2009090495 A JP2009090495 A JP 2009090495A JP 2009216099 A JP2009216099 A JP 2009216099A
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Prior art keywords
working fluid
cooling device
cooling
heat exchanger
pressure pump
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JP2009090495A
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Japanese (ja)
Inventor
Franz Trieb
フランツ・トリープ
Gerald Retschnik
ゲラルト・レツチユニク
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BHDT GmbH
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BHDT GmbH
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    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/11—Outlet temperature

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Compressor (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To securely set temperature of working fluid by re-cooling with high economic efficiency in a cooling device. <P>SOLUTION: The cooling device 1 is for working fluid A for a high pressure pump including a booster, provided with a feeder for the working fluid A and heat exchangers 2 and 3. The cooling device 1 includes at least two heat exchangers 2 and 3 which are serially connected in a cooling circuit 4. The cooling circuit 4 properly receives action by at least one pump 5. Control devices 8, 8', and 8" are also provided to change action or stop of the heat exchangers 2 and 3 respectively at set temperature as desired through changing means 6 and 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、動作流体用送り装置及び熱交換器を含む、昇圧機を持つ高圧ポンプの動作流体用冷却装置に関する。  The present invention relates to a cooling device for working fluid of a high-pressure pump having a booster, including a feeding device for working fluid and a heat exchanger.

例えば噴射水切断装置に使用されるような高圧ポンプは、大抵の場合動作流体を持つ昇圧機として構成されている。作動中に動作流体が熱くなるので、なるべく準備タンクへの戻し又は循環でその冷却が行われる。例えば上述した種類の高圧ポンプの３７ｋＷの供給される駆動動力では、動作流体において約１１ｋＷが熱エネルギとして放出される。しかし動作流体の温度は、機能及び摩耗の理由から５５℃〜６６℃の範囲にあるようにする。  For example, high-pressure pumps such as those used in spray water cutting devices are usually configured as boosters with working fluid. Since the working fluid becomes hot during operation, it is cooled as much as possible by returning or circulating to the preparation tank. For example, in the case of 37 kW of driving power supplied from a high-pressure pump of the type described above, about 11 kW is released as thermal energy in the working fluid. However, the temperature of the working fluid should be in the range of 55 ° C. to 66 ° C. for functional and wear reasons.

空気で作動せしめられる熱交換器により動作流体の冷却を行うことは公知であり、送風機のオン／オフの切換えにより、予定される流体温度の設定を行うことができる。しかし場合によっては３５℃の冷却温度を一時的でも超過する危険があると、安全上の理由から空気による再冷却が止められ、水の作用を受ける熱交換器が用いられる。  It is known to cool the working fluid by means of a heat exchanger operated by air, and a predetermined fluid temperature can be set by switching the blower on / off. However, in some cases, if there is a danger of exceeding the cooling temperature of 35 ° C. even temporarily, the recooling by air is stopped for safety reasons, and a heat exchanger that receives the action of water is used.

冷却水で作動せしめられるこのような熱交換器は、これが必要な冷却出力で小さく構成されるか、又は僅かな場所しかとらないが、冷却水量の費用はしばしば相当なものとなる。  While such heat exchangers that are operated with cooling water are either configured small with the required cooling power or take up little space, the cost of the cooling water volume is often substantial.

ここで本発明は、最初にあげた種類の動作流体用冷却装置の上述した欠点を除去し、昇圧機を持つ高圧ポンプの作動の際最高の経済性及び安全性をもって動作流体の所望の温度の制御を行う冷却装置を提供することを目的とする。  The present invention eliminates the above-mentioned drawbacks of the first kind of cooling device for working fluid, and achieves the desired temperature of the working fluid with the highest economy and safety when operating a high pressure pump with a booster. It aims at providing the cooling device which controls.

最初にあげた冷却装置においてこの目的は、冷却装置が冷却回路において直列接続される少なくとも２つの熱交換器を持ち、この冷却回路が少なくとも１つのポンプにより適当に作用を受け、かつ制御装置を持ち、これらの制御装置によりそれぞれの熱交換器の動作又は停止が、切換え手段により所望のように設定可能な温度で切換え可能であることによって、達せられる。  The purpose of the first mentioned cooling device is to have at least two heat exchangers connected in series in the cooling circuit, which is appropriately acted on by at least one pump and has a control device. By means of these control devices, the operation or deactivation of the respective heat exchanger can be achieved by switching at a temperature that can be set as desired by the switching means.

本発明により得られる利点は、大体において、それぞれ接続可能な熱交換器により、簡単で特に安価なやり方で動作流体の所望の温度を設定できることである。  The advantage gained by the present invention is that, for the most part, the desired temperature of the working fluid can be set in a simple and particularly inexpensive manner by means of each connectable heat exchanger.

熱交換器に作用する周囲空気も、長時間の間に高まる外部温度により、動作流体の充分な再冷却には充分でなくなり、従って高圧ポンプの出力の中断を行わねばならない場合、本発明による装置によって、付加的な水冷却装置を接続する際、必要なポンプ出力を維持することができる。実験の結果驚くべきことに、高い装置費用にもかかわらず、昇圧機を持つ高圧ポンプの長時間作動における冷却媒体の費用を、高い冷却容量を持つ単独の水冷却又は空気冷却より、著しく少なくできることがわかった。  If the ambient air acting on the heat exchanger is also not sufficient for sufficient recooling of the working fluid due to the external temperature that rises over time, the device according to the invention is therefore subject to interruption of the output of the high-pressure pump. Thus, the required pump power can be maintained when connecting an additional water cooling device. Surprisingly, the result of the experiment is that despite the high equipment costs, the cost of the cooling medium in the long-time operation of the high-pressure pump with the booster can be significantly less than single water cooling or air cooling with a high cooling capacity. I understood.

１つの熱交換器が流れ通る空気により動作可能であり、別の熱交換器が流れ通る水により動作可能であると、動作流体の所望の温度を特に効率よく制御することができる。  The desired temperature of the working fluid can be controlled particularly efficiently if one heat exchanger is operable with flowing air and another heat exchanger is operable with flowing water.

本発明の好ましい実施形態によれば、動作流体／空気熱交換器が電動機又は液圧モータにより動作可能であり、液圧モータは冷却回路において直列接続されている。それにより簡単かつ確実で経済的な接続が可能である。  According to a preferred embodiment of the present invention, the working fluid / air heat exchanger can be operated by an electric motor or a hydraulic motor, which are connected in series in a cooling circuit. Thereby, a simple, reliable and economical connection is possible.

更に動作流体／水熱交換器が切換え手段を介して水を作用させることにより動作可能であると、冷却のために最小の費用で、動作流体の所望の温度制御のための効果的な付加冷却が保証される。  In addition, if the working fluid / water heat exchanger is operable by applying water through the switching means, effective additional cooling for the desired temperature control of the working fluid with minimal cost for cooling. Is guaranteed.

切換え手段がオン／オフ機能を持っているのが好ましい。なぜならば、明らかになったようにこれにより、特に簡単かつ確実であるが十分な所望の限度内における温度の制御回路が可能になるからである。  The switching means preferably has an on / off function. This is because, as will become apparent, this enables a particularly simple and reliable temperature control circuit within sufficient desired limits.

最後に動作流体の送り装置用ポンプが昇圧機を持つ高圧ポンプ用の駆動電動機に作用結合していると、特に標準から離れている電圧範囲にあるエネルギ供給に関して、特に有利なことがわかった。このように動作流体の冷却が昇圧機を持つ高圧ポンプの作動と同時に行われ、冷却系統の供給による出力減少が起こることはないようにすることができる。  Finally, it has been found that it is particularly advantageous when the working fluid feed pump is operatively coupled to a drive motor for a high pressure pump with a booster, especially for energy supply in a voltage range that is far from the standard. In this way, the working fluid is cooled at the same time as the operation of the high-pressure pump having the booster, and it is possible to prevent the output from decreasing due to the supply of the cooling system.

本発明による冷却装置を原理的に示す。  1 shows in principle a cooling device according to the invention.

図１には動作流体Ａを収容する容器が概略的に示されている。動作流体用導管及びポンプ５を持つ冷却回路４が、冷却装置１を通る流体Ａの循環及び流通を確実にする。冷却回路４に、例えば５μｍより大きい直径を持つ粒子用のフィルタ装置１０を有利に挿入することもできる。  FIG. 1 schematically shows a container for containing a working fluid A. A cooling circuit 4 with a working fluid conduit and a pump 5 ensures the circulation and flow of the fluid A through the cooling device 1. It is also possible to advantageously insert a filter device 10 for particles having a diameter of, for example, greater than 5 μm in the cooling circuit 4.

温度センサ８１′を持つ制御装置８′及び温度センサ８１を持つ制御装置８は、一方では動作流体／空気熱交換器２用切換え手段６を、他方では動作流体／水熱交換器３用切換え手段７を動作及び停止させることができる。  The control device 8 'having the temperature sensor 81' and the control device 8 having the temperature sensor 81 are on the one hand the switching means 6 for the working fluid / air heat exchanger 2 and on the other hand the switching means for the working fluid / water heat exchanger 3. 7 can be activated and deactivated.

温度センサ８１″を持つ制御装置８″は上限温度を超過する際高圧ポンプ５の停止用安全装置として設けられている。  The control device 8 ″ having the temperature sensor 81 ″ is provided as a safety device for stopping the high-pressure pump 5 when the upper limit temperature is exceeded.

昇圧機を持つ高圧ポンプの作動の際、例えば動作流体Ａが冷却回路４内に導かれ、フィルタ１０で連続して浄化される。容器内の動作流体が温度センサ８１，８１′，８１″により検出される例えば５０℃の温度に達すると、切換え手段６が、送風電動機９による熱交換器２の冷却空気作用を停止する。この冷却空気作用は、動作流体Ａの例えば４５℃の温度で停止される。制御装置８′によるこのようなオン／オフ切換えにより、通常の場合簡単に、動作流体Ａの有利な温度の一定保持従って高圧ポンプの安全な継続全負荷運転を行うことができる。  When the high pressure pump having the booster is operated, for example, the working fluid A is guided into the cooling circuit 4 and continuously purified by the filter 10. When the working fluid in the container reaches a temperature of, for example, 50 ° C. detected by the temperature sensors 81, 81 ′, 81 ″, the switching means 6 stops the cooling air action of the heat exchanger 2 by the blower motor 9. The cooling air action is stopped, for example, at a temperature of 45 ° C. of the working fluid A. Such an on / off switching by the control device 8 ′ usually makes it easy to keep the advantageous temperature of the working fluid A constant. Safe and continuous full-load operation of the high-pressure pump can be performed.

しかし高い冷却空気温度又は少ない冷却空気量のため、動作流体Ａの温度が例えば６０℃以上の温度に上昇すると、温度センサ８１又は制御装置８により水用の切換え手段７の動作がおこなわれ、それにより動作流体／水熱交換器３を介して付加冷却が開始され、動作流体Ａから冷却回路４への後続の別の又は付加的な放熱が行われる。  However, because of the high cooling air temperature or the small amount of cooling air, when the temperature of the working fluid A rises to a temperature of, for example, 60 ° C. or higher, the temperature switching device 7 is operated by the temperature sensor 81 or the control device 8. As a result, additional cooling is initiated via the working fluid / water heat exchanger 3 and subsequent further or additional heat dissipation from the working fluid A to the cooling circuit 4 takes place.

熱交換器３による動作流体／水冷却は、制御装置８のオン／オフ機能によっても簡単に制御されて、動作流体／空気冷却に合わされる。  The working fluid / water cooling by the heat exchanger 3 is also easily controlled by the on / off function of the control device 8 and matched with the working fluid / air cooling.

Ａ 動作流体
１ 冷却装置
２ 動作流体／空気熱交換器
３ 動作流体／水熱交換器
４ 動作流体用冷却回路
５ ポンプ
６ 空器用切換え手段
１７ 水用切換え手段
８，８′，８″ 制御装置
９ 送風機用電動機
１０ フィルタA Working fluid 1 Cooling device 2 Working fluid / air heat exchanger 3 Working fluid / water heat exchanger 4 Working fluid cooling circuit 5 Pump 6 Emptying switching means 17 Water switching means 8, 8 ′, 8 ″ Controller 9 Blower motor 10 Filter

Claims (8)

動作流体（Ａ）用送り装置及び熱交換器（２，３）を含む、昇圧機を持つ高圧ポンプの動作流体（Ａ）用冷却装置（１）において、冷却装置（１）が冷却回路（４）において直列接続される少なくとも２つの熱交換器（２，３）を持ち、この冷却回路（４）が少なくとも１つのポンプ（５）により適当に作用を受け、かつ制御装置（８，８′，８″）を持ち、これらの制御装置によりそれぞれの熱交換器（２，３）の動作又は停止が、切換え手段（６，７）により所望のように設定可能な温度で切換え可能であることを特徴とする、冷却装置。  In the cooling device (1) for the working fluid (A) of the high-pressure pump having the booster, including the feeding device for the working fluid (A) and the heat exchanger (2, 3), the cooling device (1) includes a cooling circuit (4). ) In which at least two heat exchangers (2, 3) are connected in series, this cooling circuit (4) is suitably acted on by at least one pump (5), and the control devices (8, 8 ', 8 ″), and by these control devices, the operation or stoppage of the respective heat exchangers (2, 3) can be switched at a temperature that can be set as desired by the switching means (6, 7). A cooling device. １つの熱交換器（２）が流れ通る空気により動作可能であり、別の熱交換器（３）が流れ通る水により動作可能であることを特徴とする、請求項１に記載の冷却装置。  2. Cooling device according to claim 1, characterized in that one heat exchanger (2) is operable with flowing air and another heat exchanger (3) is operable with flowing water. 動作流体／空気熱交換器（２）が電動機又は液圧モータ（９）により動作可能であり、液圧モータは冷却回路（４）において直列接続されていることを特徴とする、請求項１又は２に記載の冷却装置。  2. The working fluid / air heat exchanger (2) is operable by an electric motor or a hydraulic motor (9), the hydraulic motor being connected in series in a cooling circuit (4). 2. The cooling device according to 2. 動作流体／水熱交換器（３）が切換え手段（７）を介して水を作用させることにより動作可能であることを特徴とする、請求項１又は２に記載の冷却装置。  3. Cooling device according to claim 1 or 2, characterized in that the working fluid / water heat exchanger (3) is operable by applying water via the switching means (7). 切換え手段がオン／オフ機能を持っていることを特徴とする、請求項１〜４の１つに記載の冷却装置。  The cooling device according to claim 1, wherein the switching means has an on / off function. 動作流体（Ａ）の送り装置用ポンプ（５）が昇圧機を持つ高圧ポンプ用の駆動電動機に作用結合していることを特徴とする、請求項１〜５の１つに記載の冷却装置。  6. The cooling device according to claim 1, wherein the pump (5) for the working fluid (A) is operatively coupled to a drive motor for a high-pressure pump having a booster. 昇圧機を持つ高圧ポンプ用の請求項１〜６の１つに記載の冷却装置。  The cooling device according to claim 1 for a high-pressure pump having a booster. 請求項１〜６の１つに記載の冷却装置を持つ、圧力変換器を持つ高圧ポンプ。  A high-pressure pump having a pressure transducer, comprising the cooling device according to claim 1.
JP2009090495A 2008-03-11 2009-03-11 Cooling device for working fluid Pending JP2009216099A (en)

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AT0038408A AT506086B1 (en) 2008-03-11 2008-03-11 COOLING DEVICE FOR A WORKFLUID

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EP (1) EP2101064B1 (en)
JP (1) JP2009216099A (en)
AT (2) AT506086B1 (en)
CA (1) CA2657166C (en)
DE (1) DE502009000563D1 (en)
DK (1) DK2101064T3 (en)
ES (1) ES2365835T3 (en)
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CA2657166A1 (en) 2009-09-11
DK2101064T3 (en) 2011-08-15
EP2101064B1 (en) 2011-04-27
AT506086A4 (en) 2009-06-15
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ES2365835T3 (en) 2011-10-11
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CA2657166C (en) 2011-11-29
RU2400648C1 (en) 2010-09-27

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