JP5072028B2 - Waste heat utilization device for continuous washing machine and waste heat utilization method - Google Patents

Waste heat utilization device for continuous washing machine and waste heat utilization method Download PDF

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JP5072028B2
JP5072028B2 JP2008039573A JP2008039573A JP5072028B2 JP 5072028 B2 JP5072028 B2 JP 5072028B2 JP 2008039573 A JP2008039573 A JP 2008039573A JP 2008039573 A JP2008039573 A JP 2008039573A JP 5072028 B2 JP5072028 B2 JP 5072028B2
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隆 三科
康典 渥美
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株式会社東京洗染機械製作所
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Description

本発明は、連続洗濯機を備えたリネン工場において、排水に含まれている熱エネルギーを回収して有効に利用するように改良した技術に関するものである。   The present invention relates to an improved technique for recovering and effectively using thermal energy contained in wastewater in a linen factory equipped with a continuous washing machine.

エネルギー資源に恵まれない我が国においては、古来、各種の形で廃熱利用が研究され実用化されてきた。
特に最近、石油の輸入が困難になってエネルギー単価が上昇したので、廃熱利用の研究がいっそう活発になっている。
廃熱回収は、今後とも重要な研究課題であるが、一口に廃熱と言うものの、その種類は非常に多い。
本発明はリネン工場における高温廃水を適用の対象とするものであるが、後に詳述するごとく、リネン工場における熱サイクルは非常に複雑である。
In Japan, which is not blessed with energy resources, the use of waste heat has been studied and put into practical use in various forms since ancient times.
In particular, recently, the import of oil has become difficult and the unit price of energy has risen, so research on the use of waste heat has become more active.
Waste heat recovery will continue to be an important research topic, but there are many types of waste heat.
Although the present invention is applied to high-temperature wastewater in a linen factory, as will be described in detail later, the heat cycle in a linen factory is very complicated.

リネン工場における熱サイクル及び熱バランスに関する研究工夫は、
イ.後に示す[非特許文献1]に代表されるような熱効率の改善と、
ロ.後に示す[非特許文献1]に代表されるような熱バランスの改善と、において行われ、特に過熱防止を勘案して追及されていた。
(注)リネン工場における「過熱」とは、機械装置が焼損するような高熱のみでなく、蛋白系の汚れを落ちにくくさせる温度(40℃以上)も問題とされる。
Research ingenuity regarding thermal cycle and thermal balance in linen factory
A. Improvement of thermal efficiency as typified by [Non-Patent Document 1] shown later,
B. The improvement was made in the heat balance improvement as represented by [Non-Patent Document 1] described later, and was pursued in particular in consideration of prevention of overheating.
(Note) “Overheating” in a linen factory is not only a high heat that burns out mechanical equipment, but also a temperature (40 ° C. or higher) that makes it difficult to remove protein stains.

図2は公知の廃熱回収技術(熱エネルギーの節減)を示す。これは、非特許文献1として挙げた株式会社ミヤワキ編集頒布の技術資料、第5章第3節「廃熱の回収利用」に掲載されている配管系統図である。
(A)はボイラプラントでの低圧蒸気回収装置であって、低圧蒸気が高温熱交換器8Hの熱交換パイプを流通した後、スチームトラップ9を経てフラッシュタンクTに送り込まれる。該高温熱交換器8Hでは図示のごとく冷風が熱交換パイプに接触して熱風となり、図外のボイラへ送給される。
フラッシュタンクT内へ送入されたドレンは該フラッシュタンクの下半部に溜まって水室を形成し、該ドレンから発生した蒸気はフラッシュタンクTの上半部を満たして蒸気室を形成する。
高温熱交換器8Hの空気流路出口付近には温度センサ7が設けられていて、電磁弁9を介してボイラ燃焼用空気の温度制御が行なわれる。
フラッシュタンクTの上半部に当たる蒸気室内の蒸気は低温熱交換器8Lへ送られ、保有熱量を熱交換して回収される。
水室内のドレン(熱水)は低温給水加熱器6へ送られ、保有熱量を熱交換して回収される。
FIG. 2 shows a known waste heat recovery technique (thermal energy savings). This is a piping system diagram published in the technical data of Miyawaki Co., Ltd., distributed as Non-Patent Document 1, Chapter 5, Section 3, “Recovery and Use of Waste Heat”.
(A) is a low-pressure steam recovery apparatus in a boiler plant, and after low-pressure steam circulates through a heat exchange pipe of a high-temperature heat exchanger 8H, it is sent to a flash tank T through a steam trap 9. In the high-temperature heat exchanger 8H, as shown in the drawing, the cold air contacts the heat exchange pipe to become hot air and is supplied to a boiler outside the figure.
The drain fed into the flash tank T accumulates in the lower half of the flash tank to form a water chamber, and the steam generated from the drain fills the upper half of the flash tank T to form a steam chamber.
A temperature sensor 7 is provided in the vicinity of the air flow path outlet of the high-temperature heat exchanger 8H, and the temperature of the boiler combustion air is controlled via the electromagnetic valve 9.
The steam in the steam chamber corresponding to the upper half of the flash tank T is sent to the low-temperature heat exchanger 8L, and the retained heat amount is recovered by heat exchange.
The drain (hot water) in the water chamber is sent to the low-temperature feed water heater 6 and is recovered by exchanging the amount of retained heat.

図2(B)は蒸気式空気予熱器での再蒸発蒸気の利用装置であって、高温熱交換器8Hの熱交換パイプ8aを流通した蒸気は空気と熱交換して凝縮し、フラッシュタンクTへ送り込まれる。
フラッシュタンクT内で発生した蒸気は、高温熱交換器8Hの予熱パイプ8bを流通させて保有熱量を空気流に与えた後、低温熱交換器8Lに送給される。
フラッシュタンク下半部の水室に溜まったドレン(熱水)は、低温給水加熱器6へ送られ、保有熱量を熱交換して回収される。
高温熱交換器8Hの空気流路出口付近には温度センサ7が設けられていて、電磁弁9を介してボイラ燃焼用空気の温度制御が行なわれる。
フラッシュタンクT内の圧力を圧力センサ10で検出し、該フラッシュタンクの耐圧強度に応じ、電磁弁9を介して圧力制御が行なわれている。
FIG. 2 (B) shows a re-evaporated steam utilization device in a steam type air preheater. The steam circulated through the heat exchange pipe 8a of the high-temperature heat exchanger 8H exchanges heat with air to condense, and the flash tank T It is sent to.
The steam generated in the flash tank T is supplied to the low-temperature heat exchanger 8L after flowing through the preheating pipe 8b of the high-temperature heat exchanger 8H to give the retained heat amount to the air flow.
The drain (hot water) collected in the water chamber in the lower half of the flash tank is sent to the low-temperature feed water heater 6 and recovered by exchanging the amount of heat held.
A temperature sensor 7 is provided in the vicinity of the air flow path outlet of the high-temperature heat exchanger 8H, and the temperature of the boiler combustion air is controlled via the electromagnetic valve 9.
The pressure in the flash tank T is detected by the pressure sensor 10 and pressure control is performed via the electromagnetic valve 9 in accordance with the pressure resistance of the flash tank.

図3は、連続洗濯機を備えたリネン工場における熱バランス、特に過熱の防止を図った公知技術(特開2006−141786「連続式洗濯機、および連続式洗濯方法」)を描いた模式的な系統図である。
符号1を付して示したのは、リネン工場の主力機器であるカウンターフロー型の連続洗濯機であって、本例は8槽式である。
リネン工場へ搬入された洗濯物は、図の左端の予洗槽に投入され、順次に図の右方へ移動せしめられる。
すなわち、予洗槽→第1洗濯槽→第2洗濯槽→第3洗濯槽→第4洗濯槽を経て第1すすぎ槽→第2すすぎ槽へ進み、最後に仕上槽で仕上処理(例えば糊づけ)された後、脱水機2へ送られる。
FIG. 3 is a schematic diagram illustrating a known technique (Japanese Patent Laid-Open No. 2006-141786, “Continuous Washing Machine and Continuous Washing Method”) that aims to prevent heat balance, particularly overheating, in a linen factory equipped with a continuous washing machine. It is a systematic diagram.
Reference numeral 1 indicates a counter flow type continuous washing machine which is a main equipment of a linen factory, and this example is an eight-tank type.
Laundry carried into the linen factory is put into the pre-washing tub at the left end of the figure and sequentially moved to the right side of the figure.
That is, the pre-washing tank → the first washing tank → the second washing tank → the third washing tank → the fourth washing tank and then the first rinsing tank → the second rinsing tank, and finally the finishing treatment (for example, gluing) in the finishing tank. Then, it is sent to the dehydrator 2.

前記連続洗濯機1の中で洗濯液類は、洗濯物と反対に、主として図の右方から左方へ流される。
この公知発明の目的は、前記の第1すすぎ槽ですすぎ終えたすすぎ水が殆ど清浄であるから、これを予洗槽へ戻して水資源を節約しようとするものである。
しかし、すすぎ終えたすすぎ水は比較的高温(60℃〜80℃の間で変動)であるから、これを適温(例えば35℃)まで冷却しなければ、蛋白系の汚れを熱変質させて洗い落ちを悪くしてしまう。
そこで、次に述べるようにして熱交換が行われる。
In the continuous washing machine 1, the washing liquid is flowed mainly from the right side to the left side in the figure, opposite to the laundry.
The purpose of this known invention is to save water resources by returning the rinse water that has been rinsed in the first rinse tank to the prewash tank.
However, since the rinse water after rinsing is relatively high temperature (varies between 60 ° C. and 80 ° C.), if it is not cooled to an appropriate temperature (for example, 35 ° C.), it is washed by changing the quality of protein stains. It makes the fall worse.
Therefore, heat exchange is performed as described below.

図の右下から矢印aのように供給された新水は矢印b,矢印cのようにすすぎ水冷却用熱交換器13を流通する。
一方、第1すすぎ槽から排出されたすすぎ水(矢印g)はすすぎ水回収タンク11に収容され、その1部は前記すすぎ水冷却用熱交換器13を流通して矢印jのように予洗水タンク12に蓄えられ、脱水機2からの脱水(矢印k)と混合されて予洗槽へ送られる(矢印n)。
上述のごとく、新水が冷却側の流体であり、すすぎ済みのすすぎ水が被冷却側の流体である。
The fresh water supplied from the lower right of the figure as indicated by arrow a flows through the rinse water cooling heat exchanger 13 as indicated by arrows b and c.
On the other hand, the rinsing water (arrow g) discharged from the first rinsing tank is accommodated in the rinsing water recovery tank 11, and a part of the rinsing water is circulated through the rinsing water cooling heat exchanger 13 and prewashed water as indicated by arrow j. It is stored in the tank 12, mixed with the dehydration from the dehydrator 2 (arrow k), and sent to the prewash tank (arrow n).
As described above, the fresh water is the cooling side fluid, and the rinse water that has been rinsed is the cooled side fluid.

前記すすぎ水冷却用熱交換器13ですすぎ済み水を冷却した新水は温められ、図の点dで分流して1部は仕上槽へ供給(矢印f)され、1部は第2すすぎ槽へ供給(矢印e)される。
仕上槽の廃液は、仕上げ処理用の薬剤を含んでいるので再利用に困難が有り、排水(矢印α)される。
すすぎ水回収タンク11に導かれた第1すすぎ槽からの排水(矢印g)は、その1部が前述のごとくすすぎ水冷却用熱交換器13を経て脱水(矢印k)と合流し、予洗槽へ戻される。脱水機2で絞り取られた水は脱水処理中に降温していて30℃を超えないので、これを予洗槽へ戻しても熱的な不具合は生じない。
The fresh water that has cooled the rinsed water by the heat exchanger 13 for cooling the rinse water is warmed, diverted at a point d in the figure, one part is supplied to the finishing tank (arrow f), and one part is the second rinse tank. (Arrow e).
Since the waste liquid in the finishing tank contains a chemical for finishing treatment, it is difficult to reuse, and is drained (arrow α).
The drainage from the first rinsing tank (arrow g) led to the rinsing water recovery tank 11 merges with dehydration (arrow k) via the rinsing water cooling heat exchanger 13 as described above, and the prewash tank Returned to Since the water squeezed out by the dehydrator 2 is cooled during the dehydration process and does not exceed 30 ° C., no thermal malfunction occurs even if the water is returned to the prewash tank.

すすぎ水回収タンク11に導かれた第1すすぎ槽からの排水(矢印g)の残部は、最終段の第4洗濯槽へ戻され(矢印h)、洗剤(矢印i)と一緒に投入される。
この公知発明においては、第1洗濯槽で洗い終わった洗濯液は汚れているので排水(矢印β)される。
また、予洗槽で洗い終えた洗濯液も汚いので排水(矢印γ)される。
The remaining portion of the drainage (arrow g) from the first rinse tank led to the rinse water recovery tank 11 is returned to the fourth washing tank at the final stage (arrow h) and put together with the detergent (arrow i). .
In this publicly known invention, the washing liquid that has been washed in the first washing tub is contaminated and thus drained (arrow β).
Further, the washing liquid that has been washed in the pre-washing tank is also dirty and drained (arrow γ).

本発明が適用の対象とする「リネン工場における排水の熱エネルギー回収・再利用」に限定すると、別段の公知技術が見当たらない。
特開2006−141786 株式会社ミヤワキ編集頒布の技術資料、第5章第3節「廃熱の回収利用」
When it is limited to “thermal energy recovery / reuse of wastewater in a linen factory” to which the present invention is applied, no other known technique is found.
JP 2006-141786 A Technical document of Miyawaki Editorial Distribution Co., Ltd., Chapter 5 Section 3 “Recovery and Use of Waste Heat”

前掲の図2に示した廃熱回収技術は先人の技術的思想の遺産であって、その「ドレンをフラッシュタンクに収容して、発生する蒸気の保有熱量を回収する」という基本は大いに尊重する。しかしながら、これをリネン工場に適用するには、次の2点について改良の必要が有る。
イ.基本的にフラッシュタンクを設けなければならない。ところが、該フラッシュタンクの内部は目視が容易でなく、清掃も困難であるから、蒸発残渣を生じるようなドレンは使用できず、清浄なドレンのみが熱源として利用できる。このため、汚損した廃水を熱源とすることはできない。
ロ.発生した蒸気を、再度、低温給水加熱器に供給して該蒸気の保有熱量を回収しているので、高温熱交換器と低温熱交換器との両方を設置しなければならず、設備全体を大形大重量化させている。
The waste heat recovery technology shown in Fig. 2 above is a legacy of the technical ideas of the predecessors, and the basic principle of "containing drain in a flash tank and recovering the amount of heat stored in the generated steam" is greatly respected. To do. However, in order to apply this to a linen factory, the following two points need to be improved.
A. Basically a flash tank must be provided. However, since the inside of the flash tank is not easy to see and is difficult to clean, it is not possible to use a drain that generates evaporation residue, and only a clean drain can be used as a heat source. For this reason, the polluted waste water cannot be used as a heat source.
B. Since the generated steam is supplied again to the low-temperature feed water heater and the amount of heat retained by the steam is recovered, both the high-temperature heat exchanger and the low-temperature heat exchanger must be installed. Large and heavy.

前掲の図3に示したリネン工場における熱バランスの改善は、連続洗濯機における予洗水の過熱防止が主眼であって、第2すすぎ槽へ注入される新水が昇温するという副次的な効果を奏するが、省エネ量は僅少である。
この公知技術は予洗水の温度管理に有効であって大いに尊重すべきであるが、省エネという立場から見れば、なお一層の改善が望まれる。
The improvement of the heat balance in the linen factory shown in FIG. 3 is mainly intended to prevent the prewash water from overheating in the continuous washing machine, and the secondary water that is poured into the second rinsing tank is heated. Although effective, energy saving is very small.
This known technique is effective for temperature control of prewash water and should be greatly respected, but further improvement is desired from the standpoint of energy saving.

本発明は以上に述べた事情に鑑みて為されたものであって、その目的は、
前掲の図3に示した公知発明の連続洗濯機に適用することもでき、該公知発明以前の従来例の連続洗濯機に適用することもでき、
清浄な蒸気やドレン、若しくは清浄な排水に限らず、汚濁した排水であっても比較的高温(60℃〜80℃の間で変動)であるから、熱源として利用することができ、
簡単な熱交換機と付属配管とを追加設置するだけで実施できる、連続洗濯機における廃熱の回収利用技術を提供することである。
The present invention has been made in view of the circumstances described above, and its purpose is as follows.
It can also be applied to the continuous washing machine of the known invention shown in FIG. 3 above, and can also be applied to the continuous washing machine of the conventional example before the known invention,
Not only clean steam and drain, or clean wastewater, but even polluted wastewater is relatively hot (varies between 60 ° C and 80 ° C), so it can be used as a heat source,
It is to provide a technology for recovering and using waste heat in a continuous washing machine, which can be implemented by simply installing a simple heat exchanger and attached piping.

従来例の廃熱回収技術における努力が、主として熱エネルギーの回収に集中していたことに比して、本発明はリネン工場の設備機器全体を検討の対象とした。このように視野を広げた考察の結果、回収した熱エネルギーの供給対象機器を洗濯脱水機に特定するとともに、熱エネルギーを回収する熱源を洗濯槽の廃水に特定した。
次に、リネン工場の機器配列について概説する。
図4は、典型的なリネン工場の模式的な機器配列平面図である。
符号1を付して示したのは主力機械の連続洗濯機であって、矢印pのように投入された洗濯物を矢印q方向へ移送しつつ、順次に予洗→洗濯(本洗)→すすぎ洗い→仕上げ処理が行われる。
In contrast to the fact that the efforts in the waste heat recovery technology of the conventional example are mainly concentrated on the recovery of thermal energy, the present invention considered the entire equipment of the linen factory. As a result of widening the field of view in this way, the recovered heat energy supply target device was specified as a washing dehydrator, and the heat source for recovering the heat energy was specified as wastewater in the washing tub.
Next, the equipment arrangement of the linen factory will be outlined.
FIG. 4 is a schematic equipment arrangement plan view of a typical linen factory.
Reference numeral 1 indicates a continuous washing machine of the main machine, which sequentially carries out pre-washing → washing (main washing) → rinsing while transferring the laundry loaded in the direction of arrow q. Washing → Finishing process is performed.

1基の連続洗濯機1に対応して、1基の脱水機2が配置されており、洗濯を済ませた洗濯物は矢印rのように脱水機2へ移送される。
脱水機2で脱水された洗濯物の一部は矢印c1,矢印c2のようにタオル用乾燥機3A1,3A2へ、その他は矢印c3のようにシーツ用乾燥機3Bへ分配される。
上記のタオル用乾燥機3A1,3A2は、洗濯物を完全に乾燥させる機能を有しており、このタオル用乾燥機で完全に乾燥された洗濯物は、製品として矢印e1,e2のように搬出される。
前記のシーツ用乾燥機は洗濯物をほぐして、適宜の湿り気を残した状態まで乾燥させる機能を有している。このシーツ乾燥機でほぐされた洗濯物は、矢印d1,d2のように仕上ロール4A,4Bに移送され、ロール仕上げ処理を終えた洗濯物は製品として搬出される(矢印e3,e4)。
Corresponding to one continuous washing machine 1, one dehydrator 2 is arranged, and the laundry after washing is transferred to the dehydrator 2 as indicated by an arrow r.
A part of the laundry dehydrated by the dehydrator 2 is distributed to the towel dryers 3A1 and 3A2 as indicated by arrows c1 and c2, and the others are distributed to the sheet dryer 3B as indicated by arrows c3.
The towel dryers 3A1 and 3A2 have a function of completely drying the laundry, and the laundry completely dried by the towel dryer is carried out as products as indicated by arrows e1 and e2. Is done.
The sheet dryer has a function of loosening the laundry and drying it to a state where appropriate moisture remains. The laundry loosened by the sheet dryer is transferred to the finishing rolls 4A and 4B as indicated by arrows d1 and d2, and the finished laundry is carried out as products (arrows e3 and e4).

上記の各機器の中で、連続洗濯機1、乾燥機3、及び仕上げロール4は加熱用の蒸気を供給されて消費する。これに伴って必然的にドレンを排出する。
従来例の省エネ技術においては、上記のドレンが保有している熱エネルギーを回収する努力が為され、それぞれ相応の効果を奏していた。しかし、ドレンの発生量には限度が有り、この意味においてドレンの廃熱回収には限界が有った。
そこで本発明者は、以下に述べるように、リネン工場内におけるドレン以外の廃熱源を探求した。
Among the above devices, the continuous washing machine 1, the dryer 3, and the finishing roll 4 are supplied with steam for heating and consumed. Along with this, drainage is inevitably discharged.
In the conventional energy-saving technology, efforts were made to recover the thermal energy possessed by the above-mentioned drains, and each had a corresponding effect. However, there is a limit to the amount of drain generated, and in this sense, there is a limit to the recovery of waste heat from drain.
Therefore, the present inventor searched for a waste heat source other than drain in the linen factory as described below.

通常のリネン工場においては、特殊な汚れ方をしていたり特殊なボタンが付いていたりして連続洗濯機に投入することの出来ない洗濯物を処理するため、工場の一隅に数基の洗濯脱水機5A、5B が設置されている。
通常の洗濯物が矢印pのように連続洗濯機1へ投入される際、特殊な洗濯物は矢印u1,u2のように選別され、矢印v1,v2のように前記の洗濯脱水機5A,洗濯脱水機5Bへ投入される。
洗濯脱水機5Aで洗濯とすすぎ,仕上げを済ませた特殊な洗濯物は矢印w1のようにタオル乾燥機3A2に投入され、又は矢印w2のようにシーツ乾燥機3Bに投入され、その後は通常の洗濯物の流れ作業に合流する。
上記の洗濯脱水機5A,5Bでは、予洗・本洗・すすぎ・仕上げが行なわれるので、前記の連続洗濯機1とは別途に洗濯液や加熱蒸気が供給される。
In a normal linen factory, a number of laundry dehydrators are placed in one corner of the factory to handle laundry that cannot be thrown into a continuous washing machine due to special soiling or special buttons. Machines 5A and 5B are installed.
When normal laundry is put into the continuous washing machine 1 as indicated by the arrow p, the special laundry is selected as indicated by the arrows u1 and u2, and the laundry dehydrator 5A and the laundry as indicated by the arrows v1 and v2. The dehydrator 5B is charged.
The special laundry that has been washed and rinsed and finished by the laundry dehydrator 5A is put into the towel dryer 3A2 as shown by the arrow w1, or into the sheet dryer 3B as shown by the arrow w2, and thereafter the normal laundry Join the work flow.
In the washing and dehydrating machines 5A and 5B, pre-washing, main washing, rinsing, and finishing are performed, and thus washing liquid and heating steam are supplied separately from the continuous washing machine 1.

本発明の基本的な原理は(図1参照)、連続洗濯機1における洗濯(第1洗濯槽における本洗)の廃水(矢印β)を熱源とし、回収した熱エネルギーを温水の形で洗濯脱水機5A,5B(図4参照)に与える。
従来技術においては、「本洗の廃液は汚濁しているので、水資源としての価値が無い」と考えて捨てられていた。
本発明は、この本洗廃液に着目して、その熱エネルギーを回収する。
さらに、図4において主系列を形成している脱水機、タオルやシーツの乾燥機、及び仕上ロールの中には、本洗廃液の熱エネルギーを与えるに適切な機器が無いことが確認された。
そこで本発明者は、図4に描かれている洗濯脱水機5A,5Bを回収熱の利用対象として選定した。
The basic principle of the present invention (see FIG. 1) is that the waste water (arrow β) of washing in the continuous washing machine 1 (main washing in the first washing tub) is used as a heat source, and the recovered thermal energy is washed and dehydrated in the form of warm water. To the machines 5A and 5B (see FIG. 4).
In the prior art, the waste liquid of the main washing is polluted and discarded because it is not valuable as a water resource.
The present invention focuses on this main washing waste liquid and recovers its thermal energy.
Furthermore, it was confirmed that there is no device suitable for applying the thermal energy of the main washing waste liquid in the dehydrator, towel and sheet dryer, and finishing roll forming the main series in FIG.
Therefore, the present inventor has selected the laundry dehydrators 5A and 5B depicted in FIG.

請求項1に係る発明の構成は、
(図1参照)予洗槽と洗濯槽とすすぎ槽とを備えたカウンターフロー式連続洗濯機(1)を有するリネン工場において、
洗濯脱水機用熱交換器(14)と、洗濯脱水機(5)とが設けられるとともに、
前記洗濯槽における使用済み洗濯液の出口(本洗廃液の出口)と、前記洗濯脱水機用熱交換器の加熱側液体流路の入口とを連通する管路が設けられており、
かつ、前記洗濯脱水機用熱交換器の被加熱側液体流路の入口に新水を送給する管路と、該洗濯脱水機用熱交換器の被加熱側液体を前記洗濯脱水機に送給する管路とが設けられていることを特徴とする。
(注)図1においては、前掲の図4に示した2基の洗濯脱水機5A,5Bを模式的に統合し、1基の洗濯脱水機5として描いてある。
The configuration of the invention according to claim 1 is:
(See FIG. 1) In a linen factory having a counterflow type continuous washing machine (1) provided with a pre-washing tank, a washing tank and a rinsing tank,
A heat exchanger (14) for a laundry dehydrator and a laundry dehydrator (5) are provided,
A conduit that communicates the outlet of the used washing liquid in the washing tub (the outlet of the main washing waste liquid) and the inlet of the heating-side liquid channel of the heat exchanger for the washing dehydrator is provided;
In addition, a pipe for supplying fresh water to the inlet of the heated side liquid flow path of the heat exchanger for the laundry dehydrator, and the heated liquid of the heat exchanger for the laundry dehydrator are sent to the laundry dehydrator. And a conduit for feeding.
(Note) In FIG. 1, the two washing dehydrators 5 </ b> A and 5 </ b> B shown in FIG. 4 are schematically integrated and depicted as one washing dehydrator 5.

請求項2の発明に係る連続洗濯機の廃熱利用装置の構成は、前記請求項1の発明装置の構成要件に加えて、
(図1参照)前記洗濯脱水機用熱交換器(14)の被加熱側液体流路の出口と洗濯脱水機(5)との間に、温水タンク(15)が配設されていることを特徴とする。
The configuration of the waste heat utilization device of the continuous washing machine according to the invention of claim 2 is in addition to the configuration requirements of the device of the invention of claim 1,
(See FIG. 1) A hot water tank (15) is disposed between the outlet of the heated liquid passage on the heat exchanger (14) for the laundry dehydrator and the laundry dehydrator (5). Features.

請求項3の発明に係る連続洗濯機の廃熱利用方法は、
(図1参照)予洗槽と洗濯槽とすすぎ槽とを備えたカウンターフロー式の連続洗濯機を有するリネン工場において、
当該リネン工場に洗濯脱水機(5)、及び洗濯脱水機用熱交換器(14)を設置し、
前記連続洗濯機の洗濯槽における使用済み洗濯液を、前記洗濯脱水機用熱交換器の加熱側液体流路に流通せしめるとともに、
該洗濯脱水機用熱交換器の被加熱側液体流路に新水を流通せしめ、
使用済み洗濯液との熱交換によって昇温した新水を前記洗濯脱水機に送給することを特徴とする。
The waste heat utilization method of the continuous washing machine according to the invention of claim 3 is:
(See FIG. 1) In a linen factory having a counter-flow type continuous washing machine equipped with a pre-washing tank, a washing tank and a rinsing tank,
Installed a laundry dehydrator (5) and a heat exchanger (14) for the laundry dehydrator in the linen factory,
While circulating the used washing liquid in the washing tub of the continuous washing machine to the heating-side liquid flow path of the heat exchanger for the washing and dehydrating machine,
Distribute fresh water to the heated liquid passage in the heat exchanger for the washing and dehydrating machine,
It is characterized in that fresh water heated by heat exchange with the used washing liquid is supplied to the washing and dehydrating machine.

請求項4の発明に係る連続洗濯機の廃熱利用方法は、前記請求項3に記載した発明方法の構成要件に加えて、
(図1参照)前記洗濯脱水機用熱交換器(14)によって昇温した新水を、温水タンク(15)に貯溜し、必要に応じて洗濯脱水機(5)に送給することを特徴とする。
The waste heat utilization method of the continuous washing machine according to the invention of claim 4, in addition to the constituent requirements of the invention method of claim 3,
(See FIG. 1) The fresh water heated by the heat exchanger (14) for the washing and dehydrating machine is stored in the hot water tank (15) and fed to the washing and dehydrating machine (5) as necessary. And

請求項5の発明に係る連続洗濯機の廃熱利用方法は、前記請求項4に記載した発明方法の構成要件に加えて、
(図1参照)前記温水タンク(15)に貯溜された温水を、洗濯脱水機(5)以外の機器に供給することを特徴とする。
The waste heat utilization method of the continuous washing machine according to the invention of claim 5 is in addition to the structural requirements of the invention method of claim 4,
(See FIG. 1) The hot water stored in the hot water tank (15) is supplied to equipment other than the washing and dehydrating machine (5).

請求項1の発明装置を適用すると、
従来の技術においては廃棄されていたところの、使用済み洗濯液が保有している比較的高温(60℃〜80℃の間で変動)の熱量を回収し、洗濯脱水機の熱源として有効に利用することができるので、リネン工場全体としての熱効率が改善される。
これによってリネン工場のランニングコストが低減されて経済的に有利であるのみならず、
石油資源の節約という国家的な要請に応え得るものである。
更に、二酸化炭素の排出を減少させて地球温暖化を防止するという国際的な貢献も少なくない。
When the invention apparatus of claim 1 is applied,
Recovers the heat of the relatively high temperature (fluctuated between 60 ° C and 80 ° C) held by the used laundry liquid, which was discarded in the conventional technology, and effectively uses it as a heat source for the laundry dehydrator As a result, the overall thermal efficiency of the linen plant is improved.
This not only reduces the running cost of the linen factory and is economically advantageous,
It can meet the national demand for saving oil resources.
In addition, there are many international contributions that reduce carbon dioxide emissions and prevent global warming.

請求項2の発明装置を適用すれば、洗濯槽からの廃液発生と洗濯脱水機の稼働とのタイミングが合わなくても、回収した熱エネルギーを温水の形で一時的に蓄えておき、必要に応じて洗濯脱水機に与えることができる。
これにより、リネン工場稼働の設計的自由度が増大する。
If the invention device of claim 2 is applied, the recovered thermal energy is temporarily stored in the form of hot water even if the timing of the generation of the waste liquid from the washing tub and the operation of the laundry dehydrator do not match. Depending on the situation, it can be given to the laundry dehydrator.
This increases the degree of design freedom for linen plant operation.

請求項3の発明方法を適用すると、
従来の技術においては廃棄されていたところの、使用済み洗濯液が保有している熱量を簡単な熱交換器によって回収し、水源から供給された新水の温度上昇という形で有効に利用することができる。
その結果、リネン工場全体としての熱効率が改善され、リネン工場のランニングコストが低減されて経済的に有利である。
のみならず、石油資源の節約という国家的な要請に応え得るものである。
更に、二酸化炭素の排出を減少させて地球温暖化を防止するという国際的な貢献も少なくない。
When the invention method of claim 3 is applied,
The amount of heat stored in the used washing liquid, which was discarded in the conventional technology, is collected by a simple heat exchanger and used effectively in the form of a rise in the temperature of fresh water supplied from the water source. Can do.
As a result, the thermal efficiency of the entire linen factory is improved, and the running cost of the linen factory is reduced, which is economically advantageous.
Not only can it meet the national demand for saving oil resources.
In addition, there are many international contributions that reduce carbon dioxide emissions and prevent global warming.

請求項4の発明方法を適用すると、洗濯槽からの廃液発生タイミングと洗濯脱水機の稼働タイミングとが合わなくても、廃液から回収した熱エネルギーを温水の形で一時的に蓄えておき、必要に応じて洗濯脱水機に与えることができる。
これにより、リネン工場稼働の設計的自由度が増大する。
When the invention method of claim 4 is applied, the thermal energy recovered from the waste liquid is temporarily stored in the form of hot water, even if the waste liquid generation timing from the washing tub and the operation timing of the washing dehydrator do not match. Can be given to the laundry dehydrator.
This increases the degree of design freedom for linen plant operation.

請求項5の発明方法を適用すると、リネン工場における被洗濯物の種類の変化によって洗濯脱水機の稼働率が低くなった場合、余剰に回収された熱エネルギーを有効に利用することができる。   When the method of the invention of claim 5 is applied, when the operation rate of the laundry dehydrator becomes low due to a change in the type of the laundry in the linen factory, it is possible to effectively use the excessively recovered thermal energy.

図1は、本願発明を、前掲の図3に示した公知発明の連続洗濯機に適用した実施形態である。
図3(従来例)に比して図1(本発明)の異なる点、すなわち本発明を適用して改良した事項を抽出して以下に説明する。
従来例(図3)においては、第1洗濯槽から排出される使用済み洗濯液(矢印β)を下水に流して廃棄していた。
本実施形態(図1)では、洗濯脱水機用熱交換器14を設けて、前記の使用済み洗濯液(矢印β)を、該熱交換器の加熱側流体として流通せしめた後、予洗廃水(矢印γ)と一緒に排水(矢印δ)する。
FIG. 1 shows an embodiment in which the present invention is applied to the continuous washing machine of the known invention shown in FIG.
Differences from FIG. 1 (present invention) compared to FIG. 3 (conventional example), that is, items improved by applying the present invention are extracted and described below.
In the conventional example (FIG. 3), the used washing liquid (arrow β) discharged from the first washing tub is poured into sewage and discarded.
In this embodiment (FIG. 1), a heat exchanger 14 for a laundry dehydrator is provided, and the used washing liquid (arrow β) is circulated as a heating-side fluid of the heat exchanger, and then prewash waste water ( Drain (arrow δ) together with arrow γ).

前記洗濯脱水機用熱交換器14の被加熱側流体として、新水(矢印a)を流通させる。
これにより、前記の新水が熱交換により昇温して温水となり、温水タンク15に蓄えられる。
蓄えられた温水は、必要に応じて洗濯脱水機5に供給される。
洗濯脱水機5は、1基の機器の中で予洗→洗濯(本洗)→すすぎ洗い→仕上げ処理を行なうので、加熱用の熱エネルギー供給を必要とする。
このため、常温の新水でなく温水を供給されることは、本来的な加熱蒸気の必要量を減少させ、省エネに有効である。
Fresh water (arrow a) is circulated as the heated fluid of the heat exchanger 14 for the washing and dehydrating machine.
As a result, the new water is heated by heat exchange to become warm water, and is stored in the warm water tank 15.
The stored warm water is supplied to the laundry dehydrator 5 as necessary.
Since the laundry dehydrator 5 performs pre-washing → laundry (main washing) → rinse washing → finishing processing in one device, it needs to supply heat energy for heating.
For this reason, supplying hot water instead of fresh water at normal temperature reduces the necessary amount of essential heating steam and is effective for energy saving.

連続洗濯機1の稼働状態と洗濯脱水機5の運転とは必ずしも連動しないので、両者の作動タイミングが一致しない場合も有る。
しかし、新水が洗濯脱水機用熱交換器14で昇温した温水が、温水タンク15に蓄えられるので、連続洗濯機1の稼働タイミングと洗濯脱水機5の運転タイミングとが一致しなくても温水の保有熱量が無駄になる虞れが無く、有効に利用される。
また、洗濯脱水機5の所要温水量が少ない場合は、温水タンク15に蓄えられている温水を洗濯脱水機以外の機器に転用することも容易に可能である。このように実施しても、省エネ効果が得られる。
Since the operation state of the continuous washing machine 1 and the operation of the laundry dehydrator 5 are not necessarily linked, the operation timings of both may not match.
However, since the hot water whose fresh water has been heated by the heat exchanger 14 for the washing dehydrator is stored in the hot water tank 15, the operation timing of the continuous washing machine 1 and the operation timing of the washing dehydrator 5 do not coincide with each other. There is no fear that the amount of heat stored in the hot water is wasted, and it is used effectively.
Further, when the required amount of hot water for the washing and dehydrating machine 5 is small, the hot water stored in the hot water tank 15 can be easily diverted to equipment other than the washing and dehydrating machine. Even if it implements in this way, the energy-saving effect is acquired.

図1を参照して以上に説明した実施形態は、図3に示した公知発明に本発明を適用して改良したものであった。
しかし本発明は、前記公知発明の連続洗濯機に限らず、該公知発明以前の従来例に係るリネン工場に適用することもできる。
図3の公知発明(特開2006−141786号公報)以前の従来例は概要的に、図3からすすぎ水冷却用熱交換器13を削除した構造である。
The embodiment described above with reference to FIG. 1 has been improved by applying the present invention to the known invention shown in FIG.
However, the present invention is not limited to the continuous washing machine of the known invention, but can be applied to a linen factory according to a conventional example before the known invention.
The prior art prior to the known invention (Japanese Patent Laid-Open No. 2006-141786) in FIG. 3 generally has a structure in which the rinse water cooling heat exchanger 13 is omitted from FIG.

すなわち、従来例においては、新水(矢印a)が、すすぎ水冷却用熱交換器13を流通することなく、流路矢印bと流路矢印cとの間を短絡されて分岐点dに到達して、以降は同様に流動し、
すすぎ水回収タンク11内の水はすすぎ水冷却用熱交換器13を経由することなく、直接的に予洗水タンク12へ流入(矢印j)する。
脱水回収タンク10内の脱水が予洗水タンク12に流入(矢印k)することは同様である。予洗水タンク12内で混合した水は,少し汚れてはいるがほぼ清浄であるから、連続洗濯機1の予洗槽へ注入(矢印n)される。
このような従来例の連続洗濯機に本発明を適用した構成について、前記実施形態を描いた図1を援用して説明すると次のごとくである。
That is, in the conventional example, the fresh water (arrow a) reaches the branch point d by being short-circuited between the flow path arrow b and the flow path arrow c without flowing through the rinse water cooling heat exchanger 13. After that, it flows in the same way,
The water in the rinse water recovery tank 11 flows directly into the prewash water tank 12 (arrow j) without going through the rinse water cooling heat exchanger 13.
It is the same that dehydration in the dehydration recovery tank 10 flows into the prewash water tank 12 (arrow k). Since the water mixed in the prewash water tank 12 is a little dirty but almost clean, it is injected into the prewash tank of the continuous washing machine 1 (arrow n).
A configuration in which the present invention is applied to such a conventional continuous washing machine will be described with reference to FIG. 1 depicting the embodiment.

前記実施形態(図1)からすすぎ水冷却用熱交換器13を削除して考える。
新水(矢印a)は、すすぎ水冷却用熱交換器13を流通することなく、流路矢印bと流路矢印cとの間を短絡された形で分岐点dに到達し、以降は同様に流動する。
すすぎ水回収タンク11内の水はすすぎ水冷却用熱交換器13を経由することなく、直接的に予洗水タンク12へ流入(矢印j)する。
脱水回収タンク10内の脱水が予洗水タンク12に流入(矢印k)することは同様であり、予洗水タンク12内で混合した水は連続洗濯機1の予洗槽へ注入(矢印n)して再利用される。
The rinse water cooling heat exchanger 13 is deleted from the embodiment (FIG. 1).
The fresh water (arrow a) reaches the branch point d in such a manner that the flow path arrow b and the flow path arrow c are short-circuited without flowing through the rinse water cooling heat exchanger 13. To flow.
The water in the rinse water recovery tank 11 flows directly into the prewash water tank 12 (arrow j) without going through the rinse water cooling heat exchanger 13.
It is the same that dehydration in the dewatering recovery tank 10 flows into the prewash water tank 12 (arrow k), and the water mixed in the prewash water tank 12 is injected into the prewash tank of the continuous washing machine 1 (arrow n). Reused.

本段落0035で以上に説明した基本的構成を有するリネン工場であっても、
連続洗濯機1の第1洗濯槽からの排水(矢印β)を洗濯脱水機用熱交換器14に流通させて加熱側流体として作用させるとともに、水源(例えば上水道)から供給される新水(矢印a)を上記洗濯脱水機用熱交換器14で加熱して温水にすると、洗濯脱水機5に供給するに適し、省エネに有効である。
洗濯脱水機用熱交換器14で加熱された温水を温水タンク15に蓄えておくと、任意のタイミングで洗濯脱水機5に供給することができる。
Even a linen factory having the basic structure described above in this paragraph 0035,
The waste water (arrow β) from the first washing tub of the continuous washing machine 1 is circulated to the heat exchanger 14 for washing and dehydrating machine to act as a heating side fluid, and new water (arrow) supplied from a water source (for example, water supply). If a) is heated with the said heat exchanger 14 for washing and dehydrating machines and it is made warm water, it is suitable for supplying to the washing dehydrating machine 5, and is effective in energy saving.
If the hot water heated by the heat exchanger 14 for the washing and dehydrating machine is stored in the hot water tank 15, it can be supplied to the washing and dehydrating machine 5 at an arbitrary timing.

以上に説明したように本発明は、前掲の図3に示した公知発明の連続洗濯機に適用することもでき、該公知発明以前の従来例の連続洗濯機に適用することもでき、いずれの場合も省エネに有効である。
また本願発明は、廃熱回収の対象が清浄な蒸気やドレン、若しくは清浄な排水に限られることなく、汚濁した排水や薬剤で汚損された排水であっても熱源として利用することができ、
しかも、本願発明は簡単な熱交換機(14)と付属配管とを追加設置するだけで実施できる。
前述の構成と作動原理から明らかなように、本発明を前記の公知発明(特開2006−141786号公報)に併せて実施した場合、該公知発明の「予洗水の温度を適正(40℃以下)に制御する」という効果を妨げない。
As described above, the present invention can be applied to the continuous washing machine of the known invention shown in FIG. 3 described above, and can also be applied to the continuous washing machine of the conventional example before the known invention. It is also effective for energy saving.
In addition, the present invention is not limited to waste steam or drain or clean wastewater, and can be used as a heat source even for wastewater contaminated with wastewater contaminated with chemicals,
Moreover, the present invention can be carried out by simply installing a simple heat exchanger (14) and attached piping.
As is apparent from the above-described configuration and operation principle, when the present invention is carried out in combination with the above-described known invention (Japanese Patent Laid-Open No. 2006-141786), the temperature of the pre-wash water of the known invention is ) Is not disturbed.

本発明に係る連続洗濯機の廃熱利用方法を実施するために構成した連続洗濯機の廃熱利用装置の1実施形態を示し、模式的な断面図に配管系統のシンボルマークを付記した図である。1 is a diagram showing an embodiment of a waste heat utilization device for a continuous washing machine configured to carry out a waste heat utilization method for a continuous washing machine according to the present invention, and is a schematic sectional view with a symbol mark of a piping system added thereto. is there. 廃熱回収の公知技術を説明するために示したもので、(A)は高温熱交換器で発生したドレンから取り出した蒸気を低温熱交換器に供給する方式の模式図、(B)は高温熱交換器で発生したドレンから取り出した蒸気を再度高温熱交換器に循環させた後、低温熱交換器に供給する方式の模式図である。It is shown in order to explain the publicly known technique of waste heat recovery. (A) is a schematic diagram of a system for supplying steam extracted from drain generated in a high-temperature heat exchanger to a low-temperature heat exchanger, and (B) is a high-level diagram. It is a schematic diagram of a system in which the steam taken out from the drain generated in the hot heat exchanger is circulated again to the high temperature heat exchanger and then supplied to the low temperature heat exchanger. 連続洗濯機における熱交換に関する公知発明(特開2006−141786号公報)を説明するために示したもので、模式的な断面図に配管系統のシンボルマークを付記した図である。It is shown in order to demonstrate the well-known invention (Unexamined-Japanese-Patent No. 2006-141786) regarding the heat exchange in a continuous washing machine, and is the figure which added the symbol mark of the piping system to typical sectional drawing. リネン工場に設置されている多数の機器の配列と、洗濯物の経路とを示す模式的な平面図である。It is a typical top view which shows the arrangement | sequence of many apparatuses installed in the linen factory, and the path | route of the laundry.

符号の説明Explanation of symbols

1…連続洗濯機
2…脱水機
2A,2B…脱水機
3…乾燥機
3A…タオル乾燥機
3B…シーツ乾燥機
4…仕上げロール
4A,4B…仕上げロール
5…洗濯脱水機
5A,B…洗濯脱水機
6…低温給水加熱器
7…温度センサ
8H…高温熱交換器
8L…低温熱交換器
8a…熱交換パイプ
8b…予熱パイプ
9…電磁弁
10…脱水回収タンク
11…すすぎ水回収タンク
12…予洗水タンク
13…すすぎ水冷却用熱交換器
14…洗濯脱水機用熱交換器
15…温水タンク
a…新水の流動を表す矢印
b…すすぎ水冷却用熱交換器への流入を表す矢印
c…すすぎ水冷却用熱交換器からの流出を表す矢印
c1,c2…脱水機から乾燥機に至る洗濯物の経路を表す矢印
d…水の流動分岐点
d1,d2…乾燥機から仕上げロールに至る洗濯物の経路を表す矢印
e…第2すすぎ槽への流入を表す矢印
e1〜e4…製品の搬出を表す矢印
f…仕上槽への流入を表す矢印
g…すすぎ水回収タンクへの流入を表す矢印
h…第4洗濯槽への流入を表す矢印
i…洗剤の投入を表す矢印
j…予洗水タンク12への流入を表す矢印
p…洗濯物の送給を表す矢印
k…予洗水タンク12への流入を表す矢印
u1,u2,u3…分別した洗濯物の経路を表す矢印
v1,v2,v3…洗濯脱水機に投入される洗濯物の経路を表す矢印
w1,w2,w3…乾燥機に投入される洗濯物の経路を表す矢印
α…仕上げ処理水の排水を表す矢印
β…第1洗濯槽からの流出を表す矢印
γ…予洗槽からの流出を表す矢印
DESCRIPTION OF SYMBOLS 1 ... Continuous washing machine 2 ... Dehydrator 2A, 2B ... Dehydrator 3 ... Dryer 3A ... Towel dryer 3B ... Sheet dryer 4 ... Finishing roll 4A, 4B ... Finishing roll 5 ... Washing dehydrator 5A, B ... Washing dehydration Machine 6 ... Low temperature feed water heater 7 ... Temperature sensor 8H ... High temperature heat exchanger 8L ... Low temperature heat exchanger 8a ... Heat exchange pipe 8b ... Preheating pipe 9 ... Solenoid valve 10 ... Dehydration recovery tank 11 ... Rinsing water recovery tank 12 ... Prewashing Water tank 13 ... Rinsing water cooling heat exchanger 14 ... Washer / dehydrator heat exchanger 15 ... Warm water tank a ... Arrow representing the flow of fresh water b ... Arrow representing the flow into the rinsing water cooling heat exchanger c ... Arrows representing the outflow from the heat exchanger for rinsing water cooling c1, c2 ... Arrows representing the path of the laundry from the dehydrator to the dryer d ... Water flow branch point d1, d2 ... Laundry from the dryer to the finishing roll The path of things Arrow e ... arrow representing the inflow to the second rinsing tank e1 to e4 ... arrow representing the delivery of the product f ... arrow representing the inflow to the finishing tank g ... arrow representing the inflow to the rinsing water recovery tank h ... fourth Arrow indicating the inflow into the washing tub i: Arrow indicating the introduction of the detergent j: Arrow indicating the inflow to the prewash water tank 12 p: Arrow indicating the supply of the laundry k: Arrow indicating the inflow to the prewash water tank 12
u1, u2, u3 ... Arrows indicating sorted laundry paths
v1, v2, v3 ... Arrows indicating the path of the laundry put into the laundry dehydrator
w1, w2, w3 ... Arrows representing the path of the laundry to be put into the dryer α ... Arrows representing the drainage of the finishing treatment water β ... Arrows representing the outflow from the first washing tub γ ... Represents the outflow from the pre-washing tub Arrow

Claims (5)

予洗槽と洗濯槽とすすぎ槽とを備えたカウンターフロー式の連続洗濯機を有するリネン工場において、
洗濯脱水機用熱交換器と、洗濯脱水機とが設けられるとともに、
前記連続洗濯機の洗濯槽における使用済み洗濯液の出口と、前記洗濯脱水機用熱交換器の加熱側液体流路の入口とを連通する管路が設けられており、
かつ、前記洗濯脱水機用熱交換器の被加熱側液体流路の入口に新水を送給する管路と、該洗濯脱水機用熱交換器の被加熱側液体を前記洗濯脱水機に送給する管路とが設けられていることを特徴とする、連続洗濯機の廃熱利用装置。
In a linen factory having a counter-flow type continuous washing machine equipped with a pre-washing tank, a washing tank and a rinsing tank,
A heat exchanger for a laundry dehydrator and a laundry dehydrator are provided.
A conduit that communicates the outlet of the used washing liquid in the washing tub of the continuous washing machine and the inlet of the heating-side liquid channel of the heat exchanger for the washing and dehydrating machine is provided;
In addition, a pipe for supplying fresh water to the inlet of the heated side liquid flow path of the heat exchanger for the laundry dehydrator, and the heated liquid of the heat exchanger for the laundry dehydrator are sent to the laundry dehydrator. A waste heat utilization apparatus for a continuous washing machine, characterized in that a supply pipe is provided.
前記洗濯脱水機用熱交換器の被加熱側液体流路の出口と洗濯脱水機との間に、温水タンクが配設されていることを特徴とする、請求項1に記載した連続洗濯機の廃熱利用装置。   2. The continuous washing machine according to claim 1, wherein a hot water tank is disposed between an outlet of the heated liquid channel of the heat exchanger for the washing and dehydrating machine and the washing and dehydrating machine. Waste heat utilization equipment. 予洗槽と洗濯槽とすすぎ槽とを備えたカウンターフロー式の連続洗濯機を有するリネン工場において、
当該リネン工場に洗濯脱水機、及び洗濯脱水機用熱交換器を設置し、
前記洗濯槽における使用済み洗濯液を、前記洗濯脱水機用熱交換器の加熱側液体流路に流通せしめるとともに、
該洗濯脱水機用熱交換器の被加熱側液体流路に新水を流通せしめ、
使用済み洗濯液との熱交換によって昇温した新水を前記洗濯脱水機に送給することを特徴とする、連続洗濯機の廃熱利用方法。
In a linen factory having a counter-flow type continuous washing machine equipped with a pre-washing tank, a washing tank and a rinsing tank,
A laundry dehydrator and a heat exchanger for the laundry dehydrator were installed in the linen factory.
The used washing liquid in the washing tub is circulated through the heating-side liquid flow path of the heat exchanger for the washing and dehydrating machine,
Distribute fresh water to the heated liquid passage in the heat exchanger for the washing and dehydrating machine,
A method for using waste heat of a continuous washing machine, characterized in that fresh water heated by heat exchange with a used washing liquid is supplied to the washing dehydrator.
前記洗濯脱水機用熱交換器によって昇温した新水を、温水タンクに貯溜し、必要に応じて洗濯脱水機に送給することを特徴とする、請求項3に記載した連続洗濯機の廃熱利用方法。   The waste water of the continuous washing machine according to claim 3, wherein the fresh water heated by the heat exchanger for the washing and dehydrating machine is stored in a hot water tank and fed to the washing and dehydrating machine as necessary. Heat utilization method. 前記温水タンクに貯溜された温水を、洗濯脱水機以外の機器に供給することを特徴とする、請求項4に記載した連続洗濯機の廃熱利用方法。   The method for using waste heat of a continuous washing machine according to claim 4, wherein the hot water stored in the hot water tank is supplied to a device other than a washing dehydrator.
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