JP4895497B2 - Continuous washing machine and continuous washing method - Google Patents

Continuous washing machine and continuous washing method Download PDF

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JP4895497B2
JP4895497B2 JP2004337396A JP2004337396A JP4895497B2 JP 4895497 B2 JP4895497 B2 JP 4895497B2 JP 2004337396 A JP2004337396 A JP 2004337396A JP 2004337396 A JP2004337396 A JP 2004337396A JP 4895497 B2 JP4895497 B2 JP 4895497B2
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prewash
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JP2006141786A (en
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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、カウンターフロー型の連続式洗濯機、および同じく連続式洗濯方法に係り、特に、予洗工程において適正な水温が得られるように改良した技術に関するものである。   The present invention relates to a counterflow type continuous washing machine and a continuous washing method, and more particularly to a technique improved so as to obtain an appropriate water temperature in a prewashing process.

カウンターフロー型の連続式洗濯機に関しては、特開2001−137590号公報に記載された技術が公知である。
図3は、従来例のカウンターフロー型連続式洗濯機を示し、水の流動方向を表す矢印を付記した系統図である。
この例の連続式洗濯機は、1個の予洗槽1と、4個の洗濯槽2〜5と、2個のすすぎ槽6,7とを備えている。符号8を付して示した仕上槽は、のりづけ等の仕上げ操作を行なう槽である。
Regarding a counterflow type continuous washing machine, a technique described in Japanese Patent Application Laid-Open No. 2001-137590 is known.
FIG. 3 is a system diagram showing a conventional counterflow type continuous washing machine, with an arrow indicating the direction of water flow.
The continuous washing machine of this example includes one prewash tank 1, four wash tanks 2 to 5, and two rinse tanks 6 and 7. A finishing tank denoted by reference numeral 8 is a tank for performing a finishing operation such as gluing.

一連の処理を終えた洗濯物は脱水機9で脱水処理された後、図外の乾燥・プレス工程に送られる。
新水は、手動弁10ー1および自動弁21−1介してすすぎ槽7に給水される。
仕上槽8で使い終わった水は排水(矢印c)されるが、
すすぎ槽7で使い終わった水はカウンターフローパイプを経てすすぎ槽6に送給され、すすぎ槽6で使い終わった水はすすぎ水回収タンク11に溜められる(矢印g)。
前記脱水機9の排水は脱水回収タンク12に溜められる(矢印f)。
The laundry after a series of treatments is dehydrated by the dehydrator 9 and then sent to a drying / pressing process outside the figure.
Fresh water is supplied to the rinsing tank 7 through the manual valve 10-1 and the automatic valve 21-1.
Water that has been used in the finishing tank 8 is drained (arrow c).
The water that has been used in the rinsing tank 7 is fed to the rinsing tank 6 through the counter flow pipe, and the water that has been used in the rinsing tank 6 is stored in the rinsing water recovery tank 11 (arrow g).
The drainage of the dehydrator 9 is stored in a dehydration recovery tank 12 (arrow f).

洗濯物は予洗槽1に投入された後、洗濯槽2に送られ、洗濯槽3→洗濯槽4→洗濯槽5というように順次に図の右方へ移動して行く。
一方、洗濯用の水は、図の右方から左方へ流動する。すなわち、すすぎ水回収タンク11内の水がポンプ17に吸入・吐出され、手動弁10を経て最終段の洗濯槽5に供給される(矢印b)。
After the laundry is put into the pre-washing tub 1, it is sent to the washing tub 2, and sequentially moves to the right in the drawing in the order of the washing tub 3 → the washing tub 4 → the washing tub 5.
On the other hand, washing water flows from the right to the left in the figure. That is, the water in the rinsing water recovery tank 11 is sucked and discharged into the pump 17 and supplied to the final-stage washing tub 5 through the manual valve 10 (arrow b).

洗濯槽5で使われた水は、カウンターフローパイプを介して洗濯槽4へ、さらに洗濯槽3→洗濯槽2へと送られた後に排水(矢印d)される。
予洗槽1で使われた水は排水(矢印e)される。
この予洗槽1で使われる水は、予洗水タンク18からポンプ20により、自動弁21および手動弁16を介して供給される(矢印i)。
The water used in the washing tub 5 is drained (arrow d) after being sent to the washing tub 4 through the counter flow pipe and further from the washing tub 3 to the washing tub 2.
The water used in the prewash tank 1 is drained (arrow e).
Water used in the prewash tank 1 is supplied from the prewash water tank 18 by the pump 20 through the automatic valve 21 and the manual valve 16 (arrow i).

上記予洗水タンク18には、すすぎ槽で使い終わった水、および脱水回収タンク12に回収された水が再利用される。
すなわち、前記すすぎ水回収タンク11内に溜まっている水がポンプ13で予洗水タンク18に送られる(矢印h)とともに、
脱水回収タンク12内に溜まっている水がポンプ15で予洗水タンク18に送られる(矢印i)。
以上に説明したように、予洗に必要な水は、すすぎ作業で使い終わった水や脱水作業で回収した水を循環させて再利用している。
特開2001−137590号公報
In the prewash water tank 18, water that has been used in the rinse tank and water collected in the dehydration collection tank 12 are reused.
That is, the water accumulated in the rinse water recovery tank 11 is sent to the prewash water tank 18 by the pump 13 (arrow h),
The water accumulated in the dehydration recovery tank 12 is sent to the prewash water tank 18 by the pump 15 (arrow i).
As described above, the water necessary for the pre-washing is reused by circulating the water that has been used in the rinsing operation or the water collected in the dehydration operation.
JP 2001-137590 A

図3(従来例)において、すすぎ水回収タンク11に回収される水は比較的に高温で、通常45℃〜60℃である。
これに比して、脱水回収タンク12に回収される水は比較的に低温で、通常20℃〜30℃である。しかし、脱水回収水量は一般に、すすぎ回収水量よりも少ないので、これらが混合された予洗水タンク14内の水温は40℃を超える場合が多い。
In FIG. 3 (conventional example), the water recovered in the rinse water recovery tank 11 is relatively high in temperature, usually 45 ° C. to 60 ° C.
Compared to this, the water recovered in the dehydration recovery tank 12 is relatively low in temperature, usually 20 ° C to 30 ° C. However, since the amount of dewatered recovered water is generally smaller than the amount of rinse recovered water, the water temperature in the prewash water tank 14 in which these are mixed often exceeds 40 ° C.

予洗の洗濯温度は、蛋白系の汚れの洗濯効果を上げるために、40℃以下であること、
望ましくは35℃以下であることを要する。
このため、従来技術においては、予洗水タンク18内の水温が上がり過ぎると新水を注入して温度調節を行なっていた。
The washing temperature for pre-washing should be 40 ° C. or lower in order to increase the washing effect of protein-based dirt.
Desirably, it needs to be 35 degrees C or less.
For this reason, in the prior art, when the water temperature in the prewash water tank 18 rises too much, fresh water is injected to adjust the temperature.

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、その目的とするところは、予洗水温調節のために新水を浪費することを節約し、しかも予洗水タンク内の水温を適正に制御し得る技術を提供するにある。
なお、本発明の副次的な効果として、すすぎ後の洗濯物の温度が上がるため乾燥作業が容易になるとともに、エネルギー消費が節減され、
さらに、すすぎ工程におけるサーマルショックを緩和してシワの発生を防止することができた。
The present invention has been made in view of the circumstances described above, and the object of the present invention is to save waste of fresh water for adjusting the prewash water temperature, and to reduce the water temperature in the prewash water tank. It is to provide a technology that can be appropriately controlled.
As a secondary effect of the present invention, the temperature of the laundry after rinsing is increased, so that the drying operation is facilitated and energy consumption is reduced.
Furthermore, the thermal shock in the rinsing process was alleviated and wrinkles could be prevented.

上記の目的を達成するために創作した本発明の基本的な原理を、その1実施形態に係る図1を参照して略述すると次のとおりである。
予洗水タンク18内の水温が過熱するのは、すすぎ水回収タンク11内の水温が高すぎるからである。
従来技術においては、この高温の水に「比較的低温の新水」を注入・混合していた。
しかし、必ずしも注入・混合しなくても、熱交換を行なわせることによって同様の効果が得られる。
The basic principle of the present invention created in order to achieve the above object is briefly described as follows with reference to FIG. 1 according to one embodiment.
The water temperature in the prewash water tank 18 is overheated because the water temperature in the rinse water recovery tank 11 is too high.
In the prior art, “relatively low temperature fresh water” is injected and mixed into this high temperature water.
However, the same effect can be obtained by performing heat exchange without necessarily injecting and mixing.

前述の原理に基づく具体的な構成として、第1の発明に係る連続式洗濯機の構成は(図1参照)、少なくとも1つの予洗槽(1)、複数の洗濯槽(2,3,4,5)、少なくとも1つのすすぎ槽(6,7)、および仕上げ槽(8)と、すすぎ槽から排水されるすすぎ水を溜めるすすぎ水回収タンク(11)と、脱水機から排出される水を溜める脱水回収タンク(12)と、前記すすぎ水回収タンク内の水および脱水回収タンク内の水を送給されて、これらを混合して溜め、前記予洗槽に供給する予洗水タンク(18)とを具備するカウンタフロー式の連続洗濯機において、「すすぎ槽に供給される新水」を冷却水とし、「すすぎ水回収タンクから予洗水タンクへ供給される水の全て,かつ、当該水のみ」を被冷却水とする熱交換器(19)であって、前記被冷却水に含まれるリントが堆積しないような形状に形成され、前記熱交換器を経由した前記被冷却水の全てが、前記予洗水タンク(18)に供給され、浪費しないように供給された前記冷却水との熱交換で、前記被冷却水の温度を下降させ、かつ、当該被冷却水との熱交換で、当該冷却水の温度を洗濯物のサーマルショック緩和となるように上昇させる熱交換器(19)が設けられ、前記予洗水タンク(18)内の水の温度を40℃とするように、当該予洗水タンク(18)に供給される前記被冷却水の水量を制御する制御手段が設けられていることを特徴とする。 As a specific configuration based on the above-described principle, the configuration of the continuous washing machine according to the first invention (see FIG. 1) includes at least one pre-washing tub (1) and a plurality of washing tubs (2, 3, 4, 5) At least one rinsing tank (6, 7) and finishing tank (8), a rinsing water recovery tank (11) for storing rinsing water drained from the rinsing tank, and water discharged from the dehydrator A dewatering recovery tank (12) and a prewash water tank (18) to which water in the rinse water recovery tank and water in the dewatering recovery tank are fed, mixed and stored, and supplied to the prewash tank. In the counter-flow type continuous washing machine provided, "new water supplied to the rinsing tank" is used as cooling water, and " all water supplied from the rinse water recovery tank to the pre-wash water tank , and only that water " is used. in the heat exchanger to the cooling water (19) Thus, the lint contained in the water to be cooled is formed so as not to accumulate, and all of the water to be cooled via the heat exchanger is supplied to the prewash water tank (18) so as not to be wasted. The temperature of the cooling water is lowered by heat exchange with the cooling water supplied to the water, and the temperature of the cooling water is reduced by the heat exchange with the cooling water. heat exchanger to increase (19) is provided, the temperature of water in the pre-wash water tank (18) to the 40 ° C., the amount of water of the target cooling water supplied to the pre-wash water tank (18) Control means for controlling is provided .

以上に説明した請求項1の発明を適用すると「すすぎ水回収タンクから予洗水タンクへ供給される水」が、「すすぎ槽に供給される水」によって冷却されるので、予洗水タンク内の水温が低下し、蛋白系の汚れの洗濯効果が維持される。
「予洗槽に供給される水」を冷却した「すすぎ槽に供給される水」は昇温するが、すすぎ水の温度が上がることは、(イ)次工程である乾燥作業を容易にし、かつエネルギー消費を節減するので望ましく、かつ、(ロ)すすぎ水温が低すぎると洗濯物にサーマルショックを与えてシワを発生させる虞れが有るが、すすぎ水が熱交換で昇温することによってサーマルショックが防止される。
When the invention of claim 1 described above is applied, the “water supplied from the rinse water recovery tank to the prewash water tank” is cooled by the “water supplied to the rinse tank”, so that the water temperature in the prewash water tank is And the washing effect of protein stains is maintained.
The “water supplied to the rinsing tank” that has cooled the “water supplied to the pre-washing tank” rises in temperature, but the temperature of the rinsing water increases (i) facilitates the drying process as the next step, and (B) If the rinse water temperature is too low, there is a risk of causing a thermal shock to the laundry, which may cause wrinkles. Is prevented.

請求項2の発明に係る連続式洗濯機の構成は、前記請求項1の発明の構成要件に加えて、(図2参照)
前記の熱交換器(19)は、直管もしくはこれに類似する形状の、著しい屈曲の無い、ほぼ一定太さの被冷却水管(19a)と、
上記被冷却水管を取り巻くウォータージャケット(19b)とから成るものであることを特徴とする。
The configuration of the continuous washing machine according to the invention of claim 2 is in addition to the configuration requirements of the invention of claim 1 (see FIG. 2).
The heat exchanger (19) includes a straight pipe or a similar shape to a cooled water pipe (19a) having a substantially constant thickness without significant bending,
It is characterized by comprising a water jacket (19b) surrounding the cooled water pipe.

以上に説明した請求項2の発明を適用すると、熱交換器内にリント(糸くず)が堆積しない。
すなわち、すすぎ水の中にはリントが含まれている。リント除去装置が設けられるが、完全な除去は保証し難い。
本請求項2によれば、すすぎ水回収タンクに溜まった水が流通する被冷却水管が直管状であって、ほとんど屈曲が無く、太さ変化もほとんど無いから、リントが堆積する虞れが無い上に、点検・手入れが容易である。
When the invention of claim 2 described above is applied, lint (lint) does not accumulate in the heat exchanger.
That is, the rinse water contains lint. A lint removal device is provided, but complete removal is difficult to guarantee.
According to the second aspect of the present invention, the cooled water pipe through which the water accumulated in the rinsing water recovery tank flows is straight, has almost no bending, and has almost no change in thickness, so there is no possibility that lint accumulates. In addition, it is easy to inspect and care.

請求項3に係る発明の構成は、前記請求項1または請求項2の発明の構成要件に加えて、(図2参照)前記予洗水タンク(18)もしくはその付近に温度計(23)が設けられており、
かつ、前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給する管路の途中に電磁弁(27)が設けられ、
前記温度計(23)の出力信号を入力されて、前記電磁弁(27)を開閉制御する自動制御装置(28)が設けられていることを特徴とする。
According to the third aspect of the invention, in addition to the constituent features of the first or second aspect of the invention (see FIG. 2), a thermometer (23) is provided in or near the prewash water tank (18). And
And the solenoid valve (27) is provided in the middle of the pipeline which supplies the water in the rinse water recovery tank (11) to the prewash water tank (18),
An automatic control device (28) for controlling opening / closing of the solenoid valve (27) by receiving an output signal of the thermometer (23) is provided.

以上に説明した請求項3の発明によると、熱交換量を自動的に制御して、予洗水タンクに供給される水の温度を適温ならしめることができる。
予洗水タンクに注入される新水の流量を自動制御して予洗水温を適正化することは公知技術であるが、本請求項3の構成は上記の公知例と全く異なり、新水による熱交換量(冷却熱量)を制御して予洗水温を適正化するものである。これにより、新水を1滴も浪費せずに適正水温を得ることができる。
According to the invention of claim 3 described above, the amount of heat exchange can be automatically controlled, and the temperature of the water supplied to the prewash water tank can be adjusted to an appropriate temperature.
Although it is a well-known technique to automatically control the flow rate of fresh water injected into the pre-wash water tank to optimize the pre-wash water temperature, the structure of claim 3 is completely different from the above-mentioned known example, and heat exchange with fresh water is performed. The amount of cooling (heat amount) is controlled to optimize the prewash water temperature. Thereby, an appropriate water temperature can be obtained without wasting a single drop of fresh water.

第4の発明に係る連続洗濯方法の構成は(図1参照)、少なくとも1つの予洗槽(1)、複数の洗濯槽(2,3,4,5)、少なくとも1つのすすぎ槽(6,7)、および仕上げ槽(8)と、すすぎ槽から排水されるすすぎ水を溜めるすすぎ水回収タンク(11)と、脱水機から排出される水を溜める脱水回収タンク(12)と、前記すすぎ水回収タンク内の水および脱水回収タンク内の水を送給されて、これらを混合して溜め、前記予洗槽に供給する予洗水タンク(18)とを具備するカウンタフロー式の連続洗濯機を用いて洗濯する連続洗濯方法において、すすぎ槽に供給される新水を冷却水とし「すすぎ水回収タンクから予洗水タンクへ供給される水の全て,かつ、当該水のみ」を被冷却水として、浪費しないように供給された前記冷却水との熱交換で、前記被冷却水の温度を下降させ、かつ、当該被冷却水との熱交換で、当該冷却水の温度を洗濯物のサーマルショック緩和となるように上昇させる、熱交換を行ない、前記熱交換された前記被冷却水の全てが、前記予洗水タンク(18)に供給され、前記予洗水タンク(18)内の水の温度を40℃とするように、当該予洗水タンク(18)に供給される前記被冷却水の水量を制御することを特徴とする。

The configuration of the continuous washing method according to the fourth invention (see FIG. 1) is that at least one pre-washing tub (1), a plurality of washing tubs (2, 3, 4, 5), and at least one rinsing tub (6, 7). ), A finishing tank (8), a rinse water recovery tank (11) for storing rinse water drained from the rinse tank, a dehydration recovery tank (12) for storing water discharged from the dehydrator, and the rinse water recovery Using a counter flow type continuous washing machine comprising a prewash water tank (18) which is fed with water in the tank and water in the dehydration recovery tank, mixes and stores them, and supplies the prewash water tank (18). In the continuous washing method for washing , new water supplied to the rinsing tank is used as cooling water, and “ all the water supplied from the rinsing water recovery tank to the pre-wash water tank , and only that water ” is used as cooling water and is not wasted. The cold supplied By heat exchange with water, the lowers the temperature of the cooling water, and, in heat exchange with the object to be cooled water, raising the temperature of the cooling water so that the thermal shock relaxation of the laundry, heat exchanger The pre-wash water is adjusted so that all of the heat-exchanged water subjected to the heat exchange is supplied to the pre-wash water tank (18) and the temperature of the water in the pre-wash water tank (18) is 40 ° C. The amount of the water to be cooled supplied to the tank (18) is controlled .

以上に説明した請求項4の発明方法によると、新水を無駄に消費することなく予洗水温が高すぎないように調節することができる。
予洗水タンク内の水温を40℃以下に維持することによって、蛋白系の汚れの洗濯効果が維持される。
上記の予洗水冷却に伴って「予洗槽に供給される水」を冷却した「すすぎ槽に供給される水」は昇温するが、すすぎ水が温度上昇することは、(イ)次工程である乾燥作業を容易にし、かつエネルギー消費を節減するので望ましく、かつ、(ロ)すすぎ水温が低すぎると洗濯物にサーマルショックを与えてシワを発生させる虞れが有るが、すすぎ水が熱交換で昇温することによってサーマルショックが防止される。
According to the method of the invention of claim 4 described above, the prewash water temperature can be adjusted so as not to be too high without wasteful consumption of fresh water.
By maintaining the water temperature in the prewash water tank at 40 ° C. or less, the washing effect of protein-based dirt is maintained.
Although the “water supplied to the rinsing tank” that has cooled the “water supplied to the pre-washing tank” rises with the cooling of the pre-washing water, the temperature of the rinsing water rises in the next step. This is desirable because it facilitates certain drying operations and reduces energy consumption. (B) If the rinsing water temperature is too low, there is a risk of causing thermal shock to the laundry and causing wrinkles. Thermal shock is prevented by raising the temperature at.

請求項5に係る発明の構成は、前記請求項4の発明の構成要件に加えて、(図2参照)前記予洗水タンク(18)もしくはその付近に予め温度計(23)を設けるとともに、
前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給する管路の途中に電磁弁(27)を設けておき、
前記温度計(23)で計測された温度に基づいて、前記電磁弁(27)を開閉制御することを特徴とする。
In addition to the constituent features of the invention of claim 4, the configuration of the invention according to claim 5 (see FIG. 2) is provided with a thermometer (23) in advance in or near the prewash water tank (18),
An electromagnetic valve (27) is provided in the middle of a pipeline for supplying water in the rinse water recovery tank (11) to the prewash water tank (18),
The solenoid valve (27) is controlled to open and close based on the temperature measured by the thermometer (23).

以上に説明した請求項5の発明方法によると、熱交換量を自動的に制御して予洗水温を適正ならしめることができる。
予洗水に混合される新水の流量を自動的に制御して該予洗水温を適正ならしめる技術は公知であるが、本請求項5の構成は上記公知技術とは全く異なり、1滴の新水も注入混合することなく、熱交換量を制御することによって予洗水温を適正に維持するものである。
According to the invention method of the fifth aspect described above, the pre-wash water temperature can be made appropriate by automatically controlling the heat exchange amount.
A technique for automatically controlling the flow rate of fresh water mixed with the prewash water to make the prewash water temperature appropriate is known. However, the structure of claim 5 is completely different from the known technique, and one drop of new water is used. The prewash water temperature is appropriately maintained by controlling the heat exchange amount without injecting and mixing water.

請求項6に係る発明の構成は、前記請求項4の発明の構成要件に加えて、(図2参照)前記予洗水タンク(18)もしくはその付近に予め温度計(23)を設け、
かつ、前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給するポンプ(13)を設けておき、
前記温度計(23)で計測された温度に基づいて、前記ポンプ(13)をON,OFF制御することを特徴とする。
In the configuration of the invention according to claim 6, in addition to the constituent features of the invention of claim 4, a thermometer (23) is provided in advance in the prewash water tank (18) or in the vicinity thereof (see FIG. 2),
And the pump (13) which supplies the water in the said rinse water collection tank (11) to the prewash water tank (18) is provided,
The pump (13) is ON / OFF controlled based on the temperature measured by the thermometer (23).

以上に説明した請求項6の発明方法によっても、前記請求項5におけると同様に、熱交換量を自動的に制御して予洗水温を適正ならしめることができる。
予洗水に混合される新水の流量を自動的に制御して該予洗水温を適正ならしめる技術は公知であるが、本請求項6の構成は上記公知技術とは全く異なり、1滴の新水も注入混合することなく、熱交換器の通水流量を制御することによって熱交換量を制御し、予洗水温を適正に維持するものである。
Also according to the method of the invention of claim 6 described above, as in the case of claim 5, the heat exchange amount can be automatically controlled to make the prewash water temperature appropriate.
A technique for automatically controlling the flow rate of fresh water mixed with the prewash water to make the prewash water temperature appropriate is known. However, the configuration of claim 6 is completely different from the known technique, and one drop of new water is used. The amount of heat exchange is controlled by controlling the water flow rate of the heat exchanger without injecting and mixing water, and the prewash water temperature is appropriately maintained.

請求項1の発明を適用すると「すすぎ水回収タンクから予洗水タンクへ供給される水」が、「すすぎ槽に供給される水」によって冷却されるので、予洗水タンク内の水温が低下し、蛋白系の汚れの洗濯効果が維持される。
「予洗槽に供給される水」を冷却した「すすぎ槽に供給される水」は昇温するが、すすぎ水が温度上昇することは、(イ)次工程である乾燥作業を容易にし、かつエネルギー消費を節減するので望ましく、かつ、(ロ)すすぎ水温が低すぎると洗濯物にサーマルショックを与えてシワを発生させる虞れが有るが、すすぎ水が熱交換で昇温することによってサーマルショックが防止される。
When the invention of claim 1 is applied, “water supplied from the rinse water recovery tank to the prewash water tank” is cooled by “water supplied to the rinse tank”, so that the water temperature in the prewash water tank decreases, The washing effect of protein stains is maintained.
The temperature of the “water supplied to the rinsing tank” that has cooled the “water supplied to the pre-washing tank” rises, but the temperature of the rinsing water increases (i) facilitates the drying operation as the next step, and (B) If the rinse water temperature is too low, there is a risk of causing a thermal shock to the laundry, which may cause wrinkles. Is prevented.

請求項2の発明を適用すると、熱交換器内にリント(糸くず)が堆積しない。
すなわち、すすぎ水の中にはリントが含まれている。リント除去装置が設けられるが、完全な除去は保証し難い。
本請求項2によれば、すすぎ水回収タンクに溜まった水が流通する被冷却水管が直管状であって、著しい屈曲が無く、太さ変化もほとんど無いから、リントが堆積する虞れが無い上に、点検・手入れが容易である。
When the invention of claim 2 is applied, lint (lint) does not accumulate in the heat exchanger.
That is, the rinse water contains lint. A lint removal device is provided, but complete removal is difficult to guarantee.
According to the second aspect of the present invention, the cooled water pipe through which the water accumulated in the rinsing water recovery tank flows is straight, has no significant bending, and has almost no change in thickness, so there is no possibility of lint accumulation. In addition, it is easy to inspect and care.

請求項3の発明によると、熱交換量を自動的に制御して、予洗水タンクに供給される水の温度を適温ならしめることができる。
予洗水タンクに注入される新水の流量を自動制御して予洗水温を適正化することは公知技術であるが、本請求項3の構成は上記の公知例と全く異なり、新水による熱交換量(冷却熱量)を制御して予洗水温を適正化するものである。これにより、新水を1滴も浪費せずに適正水温を得ることができる。
According to invention of Claim 3, the amount of heat exchange can be controlled automatically, and the temperature of the water supplied to a prewash water tank can be made suitable temperature.
Although it is a well-known technique to automatically control the flow rate of fresh water injected into the pre-wash water tank to optimize the pre-wash water temperature, the structure of claim 3 is completely different from the above-mentioned known example, and heat exchange with fresh water is performed. The amount of cooling (heat amount) is controlled to optimize the prewash water temperature. Thereby, an appropriate water temperature can be obtained without wasting a single drop of fresh water.

請求項4の発明方法によると、新水を無駄に消費することなく予洗水温が高すぎないように調節することができる。
予洗水タンク内の水温を40℃以下に維持することによって、蛋白系の汚れの洗濯効果が維持される。
上記の予洗水冷却に伴って「予洗槽に供給される水」を冷却した「すすぎ槽に供給される水」は昇温するが、すすぎ水が温度上昇することは、(イ)次工程である乾燥作業を容易にし、かつエネルギー消費を節減するので望ましく、かつ、(ロ)すすぎ水温が低すぎると洗濯物にサーマルショックを与えてシワを発生させる虞れが有るが、すすぎ水が熱交換で昇温することによってサーマルショックが防止される。
According to the method of the invention of claim 4, the prewash water temperature can be adjusted so as not to be too high without wastefully consuming fresh water.
By maintaining the water temperature in the prewash water tank at 40 ° C. or less, the washing effect of protein-based dirt is maintained.
Although the “water supplied to the rinsing tank” that has cooled the “water supplied to the pre-washing tank” rises with the cooling of the pre-washing water, the temperature of the rinsing water rises in the next step. This is desirable because it facilitates certain drying operations and reduces energy consumption. (B) If the rinsing water temperature is too low, there is a risk of causing thermal shock to the laundry and causing wrinkles. Thermal shock is prevented by raising the temperature at.

請求項5の発明方法によると、熱交換量を自動的に制御して予洗水温を適正ならしめることができる。
予洗水に混合される新水の流量を自動的に制御して該予洗水温を適正ならしめる技術は公知であるが、本請求項5の構成は上記公知技術とは全く異なり、1滴の新水も注入混合することなく、熱交換量を制御することによって予洗水温を適正に維持するものである。
According to the invention method of claim 5, the amount of heat exchange can be automatically controlled to make the prewash water temperature appropriate.
A technique for automatically controlling the flow rate of fresh water mixed with the prewash water to make the prewash water temperature appropriate is known. However, the structure of claim 5 is completely different from the known technique, and one drop of new water is used. The prewash water temperature is appropriately maintained by controlling the heat exchange amount without injecting and mixing water.

図1は、本発明に係る連続式洗濯機の1実施形態を示す模式的な系統図である。
この実施形態は、前掲の図3に示した従来例に本発明を適用して改良した一例であって、図3におけると同一の符号を付したものは、前記従来例におけると同様ないし類似の構成部分である。
以下に、本図1の構成が図3(従来例)に比して異なる点を抽出して説明する。
FIG. 1 is a schematic system diagram showing an embodiment of a continuous washing machine according to the present invention.
This embodiment is an example in which the present invention is improved by applying the present invention to the conventional example shown in FIG. 3. The same reference numerals as those in FIG. It is a component part.
In the following, a description will be given by extracting points in which the configuration of FIG. 1 is different from that of FIG.

図3(従来例)においては、すすぎ水回収タンク11に溜まった水をポンプ13で予洗水タンク14に直送した。
しかし、図1(実施例)においては熱交換器19を経由して送給する。符号22の部材は逆止弁である。
この熱交換器19の構造については図2を参照して後に詳しく述べるが、「すすぎ水回収タンク11から予洗水タンク18に送給される水流」を「すすぎ槽7に供給される新水」で冷却するようになっている。
これにより、比較的高温の「すすぎ水回収タンク11から予洗水タンク18に送給される水流」が、比較的低温の「すすぎ槽7に供給される新水」と熱交換して冷却され、予洗水タンク18内の水温が低下する。
In FIG. 3 (conventional example), the water accumulated in the rinse water recovery tank 11 was directly sent to the prewash water tank 14 by the pump 13.
However, in FIG. 1 (Example), it feeds via the heat exchanger 19. The member of the code | symbol 22 is a check valve.
The structure of the heat exchanger 19 will be described in detail later with reference to FIG. 2, but “the water flow fed from the rinse water recovery tank 11 to the prewash water tank 18” is “new water supplied to the rinse tank 7”. It is designed to cool down.
Thereby, the relatively high-temperature “water stream fed from the rinse water recovery tank 11 to the prewash water tank 18” is cooled by exchanging heat with the relatively low-temperature “new water supplied to the rinse tank 7”. The water temperature in the prewash water tank 18 falls.

図3(従来例)においては、前記すすぎ槽7へ供給される新水が、手動弁10ー1および自動弁21−1を介して直送された。
しかし、図1(実施例)における新水の供給は、熱交換器19に向かい(矢印m)、該熱交換器19を流通した後(矢印n)、分岐点yで分かれた管路の片方は手動弁10−2および自動弁21ー2を介して仕上槽8に供給され、
分かれた管路の他方は手動弁10−1および自動弁21ー1を経由してすすぎ槽7に連通されている。
In FIG. 3 (conventional example), fresh water supplied to the rinsing tank 7 was directly sent via the manual valve 10-1 and the automatic valve 21-1.
However, the supply of fresh water in FIG. 1 (Example) is directed to the heat exchanger 19 (arrow m), and after flowing through the heat exchanger 19 (arrow n), one side of the pipe divided at the branch point y Is supplied to the finishing tank 8 via the manual valve 10-2 and the automatic valve 21-2.
The other of the divided pipe lines communicates with the rinsing tank 7 via the manual valve 10-1 and the automatic valve 21-1.

図1(実施例)において、脱水回収タンク12内の水がポンプ15によって予洗水タンク18へ送られることは、図3(従来例)におけると同様である。符号22の部材は逆止弁である。
脱水回収タンク12内の水温は、本発明の適用によって温度が上昇するが、すすぎ水回収タンク11内の水が熱交換器19で冷却されて予洗水タンク18に送給されるので、該予洗水タンク18内の水温は低くなる。
In FIG. 1 (Example), the water in the dehydration recovery tank 12 is sent to the prewash water tank 18 by the pump 15 as in FIG. 3 (conventional example). The member of the code | symbol 22 is a check valve.
Although the temperature of the water in the dehydration recovery tank 12 increases due to the application of the present invention, the water in the rinse water recovery tank 11 is cooled by the heat exchanger 19 and fed to the prewash water tank 18. The water temperature in the water tank 18 is lowered.

熱交換によって、予洗槽1へ供給される予洗水の温度が低下するとともに、すすぎ槽7へ供給される新水の温度が上昇する。
すすぎ水温が上昇すると、その後工程である脱水作業および乾燥作業が高能率で遂行される。
その上、乾燥作業に要するエネルギー量が節減される。
さらに、すすぎ槽に注入される新水の温度が上がると、サーマルショックに因るシワの発生が防止される。
By the heat exchange, the temperature of the prewash water supplied to the prewash tank 1 is lowered and the temperature of the fresh water supplied to the rinse tank 7 is raised.
When the rinse water temperature rises, the subsequent dewatering and drying operations are performed with high efficiency.
In addition, the amount of energy required for the drying operation is saved.
Furthermore, when the temperature of the fresh water injected into the rinsing tank rises, generation of wrinkles due to thermal shock is prevented.

図2は、前掲の図1に示した実施形態の変形例における要部を抽出して描いた模式的な系統図である。
符号19を付して示した熱交換器は、直管状の被冷却水管19aの周囲をウォータージャケット19bで囲んだ構造である。
上記直管状の被冷却水管19aには、すすぎ水回収タンク11内の水が導かれて流通せしめられる。
回収されたすすぎ水にはリント(糸くず)が含まれているが、被冷却水管19aが直管状であるから、内壁にリントが付着して堆積する虞れが無い。
FIG. 2 is a schematic system diagram in which the main part in the modified example of the embodiment shown in FIG. 1 is extracted and drawn.
The heat exchanger indicated by reference numeral 19 has a structure in which a periphery of a straight pipe to be cooled 19a is surrounded by a water jacket 19b.
The water in the rinse water recovery tank 11 is guided and circulated through the straight tubular cooled water pipe 19a.
The recovered rinse water contains lint (waste thread), but since the cooled water pipe 19a is straight, there is no possibility that lint adheres to the inner wall and accumulates.

前記被冷却水管19aが直管状であることの作用効果から理解されるように、本発明において「直管状」とは、リントが付着堆積する虞れの無い構造をいい、立体幾何学的に厳密な直管であることを要しない。
すなわち、曲管であっても曲率半径が大きくて著しい屈曲が無く、内径寸法がほぼ一定であって著しい「くびれ」や段差が無ければ、本発明においては直管と見做す。
前記ウォータージャケット19bには新水が導かれ(矢印n)、該ウォータージャケット19bを流通した水はすすぎ槽へ導かれる(矢印m)。
As understood from the effect of the fact that the cooled water pipe 19a is a straight tube, in the present invention, the “straight tube” means a structure in which there is no possibility that lint adheres and accumulates, and is strictly three-dimensional geometrically. It is not necessary to be a straight pipe.
That is, even if it is a curved pipe, if it has a large radius of curvature and no significant bending, the inner diameter dimension is substantially constant, and there is no significant “necking” or step difference, it is regarded as a straight pipe in the present invention.
Fresh water is guided to the water jacket 19b (arrow n), and the water flowing through the water jacket 19b is guided to the rinsing tank (arrow m).

予洗水タンク18の中に温度計23が設置されるとともに、
前記被冷却水管19aから予洗水タンク18に至る管路の途中に電磁弁27が介挿接続されている。
前記温度計23の検出信号は自動制御装置28に入力される。該自動制御装置は前記の電磁弁27を開閉制御して、予洗水タンク18内の水温が所定の値(例えば35℃)となるように制御する。
A thermometer 23 is installed in the prewash water tank 18, and
An electromagnetic valve 27 is inserted and connected in the middle of a pipe line from the cooled water pipe 19a to the prewash water tank 18.
The detection signal of the thermometer 23 is input to the automatic control device 28. The automatic controller controls the opening and closing of the electromagnetic valve 27 so that the water temperature in the prewash water tank 18 becomes a predetermined value (for example, 35 ° C.).

予洗水タンク18の中に温度計を設けて、該予洗水タンクに流入する新水の流量を制御した公知例は有るが、予洗水タンクに流入するすすぎ回収水の熱交換量(冷却熱量)を調節するという構成は、本発明によって初めて創作され、新水の浪費を節減するという新規な効果を奏し得た。   Although there is a known example in which a thermometer is provided in the prewash water tank 18 to control the flow rate of fresh water flowing into the prewash water tank, the heat exchange amount (cooling heat amount) of the rinse-recovered water flowing into the prewash water tank The configuration of adjusting the pressure was created for the first time by the present invention, and has a novel effect of saving waste of new water.

前記自動制御装置28による電磁弁27の制御は、要するに熱交換器19による交換熱量を増減調節するものである。本発明を実施する場合、自動制御装置28で開閉制御する電磁弁の設置箇所は、必ずしも「すすぎ水回収タンク11と予洗水タンク18とを接続する管路の途中」でなくても良い。
熱交換器19による熱交換量、すなわち、予洗水の冷却熱量に影響をあたえる管路の途中に設けられた電磁弁を、予洗水タンク18内の水温に基づいて開閉制御する構造、及び同方法は本発明の技術的範囲に属するものである。
The control of the electromagnetic valve 27 by the automatic control device 28 is basically to increase or decrease the amount of heat exchanged by the heat exchanger 19. When carrying out the present invention, the installation location of the solenoid valve that is controlled to open and close by the automatic control device 28 does not necessarily have to be “in the middle of the pipeline connecting the rinse water recovery tank 11 and the prewash water tank 18”.
Structure and method for controlling opening and closing of a solenoid valve provided in the middle of a pipeline that affects the amount of heat exchange by the heat exchanger 19, that is, the amount of cooling heat of the prewash water, based on the water temperature in the prewash water tank 18 Belongs to the technical scope of the present invention.

前掲の図2に示した実施形態の変形例として、矢印mの管路、もしくは矢印nの管路に電磁弁(図示省略)を設けて、自動制御装置28で制御しても本発明の技術的範囲に属するものである。
また、電磁弁は、必ずしも管路の途中に介挿するとは限らず、電磁弁を有するバイパス管路(図示省略)を設けても、本発明の技術的範囲に属するものである。
また、ポンプ13のON,OFFを自動制御装置28で制御しても、請求項6として本発明の技術的範囲に属するものである。
As a modification of the embodiment shown in FIG. 2 described above, even if an electromagnetic valve (not shown) is provided in the pipeline indicated by the arrow m or the pipeline indicated by the arrow n and controlled by the automatic control device 28, Belongs to the target scope.
Further, the electromagnetic valve is not necessarily inserted in the middle of the pipeline, and even if a bypass pipeline (not shown) having an electromagnetic valve is provided, it belongs to the technical scope of the present invention.
Further, even if the ON / OFF of the pump 13 is controlled by the automatic control device 28, it belongs to the technical scope of the present invention as claim 6.

本発明に係る連続式洗濯機の1実施形態を示す模式的な系統図1 is a schematic system diagram showing an embodiment of a continuous washing machine according to the present invention. 前掲の図1と異なる実施形態の要部を描いた模式的な系統図Schematic system diagram showing the main part of the embodiment different from FIG. 従来例の連続式洗濯機を描いた系統図System diagram depicting a conventional continuous washing machine

符号の説明Explanation of symbols

1…予洗槽
2,3,4,5…洗濯槽
6,7…すすぎ槽
8…仕上槽
9…脱水機
10…手動弁
11…すすぎ水回収タンク
12…脱水回収タンク
13…ポンプ
15…ポンプ
16…手動弁
17…ポンプ
18…予洗水タンク
19…熱交換器
19a…被冷却水管
19b…ウォータージャケット
20…ポンプ
21…自動弁
22…逆止弁
23…温度計
27…電磁弁
28…自動制御装置
DESCRIPTION OF SYMBOLS 1 ... Pre-wash tank 2,3,4,5 ... Washing tank 6,7 ... Rinse tank 8 ... Finish tank 9 ... Dehydrator 10 ... Manual valve 11 ... Rinsing water collection tank 12 ... Dehydration collection tank
13 ... Pump
15 ... Pump
16 ... Manual valve
17 ... Pump
18 ... Pre-wash water tank
19 ... heat exchanger
19a ... Cooled water pipe 19b ... Water jacket 20 ... Pump
21 ... Automatic valve
22 ... Check valve
23 ... Thermometer
27 ... Solenoid valve 28 ... Automatic control device

Claims (6)

少なくとも1つの予洗槽(1)、複数の洗濯槽(2,3,4,5)、少なくとも1つのすすぎ槽(6,7)、および仕上げ槽(8)と、
すすぎ槽から排水されるすすぎ水を溜めるすすぎ水回収タンク(11)と、
脱水機から排出される水を溜める脱水回収タンク(12)と、
前記すすぎ水回収タンク内の水および脱水回収タンク内の水を送給されて、これらを混合して溜め、前記予洗槽に供給する予洗水タンク(18)とを具備するカウンタフロー式の連続洗濯機において、
「すすぎ槽に供給される新水」を冷却水とし、「すすぎ水回収タンクから予洗水タンクへ供給される水の全て,かつ、当該水のみ」を被冷却水とする熱交換器(19)であって、
前記被冷却水に含まれるリントが堆積しないような形状に形成され、
浪費しないように供給された前記冷却水との熱交換で、前記被冷却水の温度を下降させ、かつ、当該被冷却水との熱交換で、当該冷却水の温度を洗濯物のサーマルショック緩和となるように上昇させる熱交換器(19)が設けられ、
前記熱交換器を経由した前記被冷却水の全てが、前記予洗水タンク(18)に供給され、
前記予洗水タンク(18)内の水の温度を40℃とするように、当該予洗水タンク(18)に供給される前記被冷却水の水量を制御する制御手段が設けられていることを特徴とする連続式洗濯機。
At least one pre-washing tub (1), a plurality of washing tubs (2, 3, 4, 5), at least one rinsing tub (6, 7), and a finishing tub (8);
A rinse water recovery tank (11) for storing rinse water drained from the rinse tank;
A dehydration recovery tank (12) for collecting water discharged from the dehydrator;
Counterflow type continuous washing comprising a prewash water tank (18) that is fed with water in the rinse water collection tank and water in the dewatering collection tank, mixes and stores them, and supplies them to the prewash tank. In the machine
Heat exchanger (19) with “new water supplied to the rinsing tank” as cooling water and “ all water supplied from the rinsing water recovery tank to the pre-wash water tank and only that water ” as cooling water Because
It is formed in a shape such that lint contained in the water to be cooled does not accumulate,
The temperature of the water to be cooled is lowered by heat exchange with the cooling water supplied so as not to be wasted, and the temperature of the water to be cooled is reduced by heat exchange with the water to be cooled. A heat exchanger (19) for raising so that
All of the water to be cooled via the heat exchanger is supplied to the prewash water tank (18),
Control means is provided for controlling the amount of water to be cooled supplied to the prewash water tank (18) so that the temperature of the water in the prewash water tank (18) is 40 ° C. A continuous washing machine.
前記リントが堆積しないような形状は、
直管もしくはこれに類似する形状の、著しい屈曲の無い、ほぼ一定太さの被冷却水管(19a)と、上記被冷却水管を取り巻くウォータージャケット(19b)とから成るものであることを特徴とする、請求項1に記載した連続式洗濯機。
The shape that the lint does not accumulate is
It consists of a straight pipe or a similar shape, a water pipe (19a) having a substantially constant thickness without any significant bending, and a water jacket (19b) surrounding the water pipe to be cooled. The continuous washing machine according to claim 1.
前記制御手段は、
前記予洗水タンク(18)もしくはその付近に温度計(23)が設けられており、かつ、前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給する管路の途中に電磁弁(27)が設けられ、前記温度計(23)の出力信号を入力されて、前記電磁弁(27)を開閉制御する自動制御装置(28)が設けられていることを特徴とする、請求項1または請求項2に記載した連続式洗濯機。
The control means includes
A thermometer (23) is provided at or near the prewash water tank (18), and in the middle of a pipeline for supplying water in the rinse water recovery tank (11) to the prewash water tank (18) Is provided with an electromagnetic valve (27), and an automatic control device (28) for controlling the opening and closing of the electromagnetic valve (27) in response to an output signal of the thermometer (23) is provided. The continuous washing machine according to claim 1 or 2.
少なくとも1つの予洗槽(1)、複数の洗濯槽(2,3,4,5)、少なくとも1つのすすぎ槽(6,7)、および仕上げ槽(8)と、
すすぎ槽から排水されるすすぎ水を溜めるすすぎ水回収タンク(11)と、
脱水機から排出される水を溜める脱水回収タンク(12)と、
前記すすぎ水回収タンク内の水および脱水回収タンク内の水を送給されて、これらを混合して溜め、前記予洗槽に供給する予洗水タンク(18)とを具備するカウンタフロー式の連続洗濯機を用いて洗濯する連続式洗濯方法において、
すすぎ槽に供給される新水を冷却水とし「すすぎ水回収タンクから予洗水タンクへ供給される水の全て,かつ、当該水のみ」を被冷却水として、
浪費しないように供給された前記冷却水との熱交換で、前記被冷却水の温度を下降させ、かつ、当該被冷却水との熱交換で、当該冷却水の温度を洗濯物のサーマルショック緩和となるように上昇させる、熱交換を行ない、
前記熱交換された前記被冷却水の全てが、前記予洗水タンク(18)に供給され、
前記予洗水タンク(18)内の水の温度を40℃とするように、当該予洗水タンク(18)に供給される前記被冷却水の水量を制御することを特徴とする連続式洗濯方法。
At least one pre-washing tub (1), a plurality of washing tubs (2, 3, 4, 5), at least one rinsing tub (6, 7), and a finishing tub (8);
A rinse water recovery tank (11) for storing rinse water drained from the rinse tank;
A dehydration recovery tank (12) for collecting water discharged from the dehydrator;
Counterflow type continuous washing comprising a prewash water tank (18) that is fed with water in the rinse water collection tank and water in the dewatering collection tank, mixes and stores them, and supplies them to the prewash tank. In the continuous washing method of washing using a machine,
New water supplied to the rinsing tank is used as cooling water, and " all water supplied from the rinsing water recovery tank to the pre-wash water tank and only the relevant water " is used as cooling water.
The temperature of the water to be cooled is lowered by heat exchange with the cooling water supplied so as not to be wasted, and the temperature of the water to be cooled is reduced by heat exchange with the water to be cooled. To raise, to perform heat exchange,
All of the water to be cooled subjected to the heat exchange is supplied to the prewash water tank (18),
A continuous washing method characterized in that the amount of water to be cooled supplied to the prewash water tank (18) is controlled so that the temperature of the water in the prewash water tank (18) is 40 ° C.
前記制御は、
前記予洗水タンク(18)もしくはその付近に予め温度計(23)を設けておき、
かつ、前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給する管路の途中に電磁弁(27)を設け、
前記温度計(23)で計測された温度に基づいて、前記電磁弁(27)を開閉制御することを特徴とする、請求項4に記載した連続式洗濯方法。
The control is
A thermometer (23) is provided in advance in or near the prewash water tank (18),
In addition, a solenoid valve (27) is provided in the middle of the pipeline for supplying water in the rinse water recovery tank (11) to the prewash water tank (18),
The continuous washing method according to claim 4, wherein the solenoid valve (27) is controlled to open and close based on the temperature measured by the thermometer (23).
前記制御は、
前記予洗水タンク(18)もしくはその付近に予め温度計(23)を設け、
かつ、前記すすぎ水回収タンク(11)内の水を予洗水タンク(18)へ送給するポンプ(13)を設けておき、
前記温度計(23)で計測された温度に基づいて、前記ポンプ(13)をON,OFF制御することを特徴とする、請求項4に記載した連続式洗濯方法。
The control is
A thermometer (23) is provided in advance in or near the prewash water tank (18),
And the pump (13) which supplies the water in the said rinse water collection tank (11) to the prewash water tank (18) is provided,
The continuous washing method according to claim 4, wherein the pump (13) is controlled to be turned on and off based on the temperature measured by the thermometer (23).
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