WO2014044178A1 - 干洗机的溶剂再生方法 - Google Patents

干洗机的溶剂再生方法 Download PDF

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Publication number
WO2014044178A1
WO2014044178A1 PCT/CN2013/083720 CN2013083720W WO2014044178A1 WO 2014044178 A1 WO2014044178 A1 WO 2014044178A1 CN 2013083720 W CN2013083720 W CN 2013083720W WO 2014044178 A1 WO2014044178 A1 WO 2014044178A1
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WIPO (PCT)
Prior art keywords
solvent
liquid
cleaning machine
dry cleaning
spraying
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Ceased
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PCT/CN2013/083720
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English (en)
French (fr)
Inventor
劳春峰
何政保
武凤玲
李以民
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Haier Group Corp
Haier Group Technology Research and Development Center
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Haier Group Corp
Haier Group Technology Research and Development Center
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Publication of WO2014044178A1 publication Critical patent/WO2014044178A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D06F43/083—Condensing arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
    • D06L1/10—Regeneration of used chemical baths

Definitions

  • the invention relates to the field of washing machines, and in particular to a solvent regeneration method of a dry cleaning machine.
  • a primary object of the present invention is to provide a solvent regeneration method for a dry cleaning machine having a high solvent recovery rate.
  • the present invention provides a solvent regeneration method for a dry cleaning machine, including Loop through the following steps:
  • Spraying step spraying a dirty liquid mixed with a solvent and a stain
  • Vaporization step vaporizing the solvent in the ejected sewage to change the solvent in the dirty liquid into steam to separate the solvent and the stain in the dirty liquid;
  • Liquefaction step liquefying steam to obtain a liquid solvent
  • Recovery step Recover liquid solvent.
  • the solvent regeneration method of the dry cleaning machine of the present invention can enhance the treatment area when the sewage liquid is treated in the vaporization step by spraying the sewage liquid, so as to accelerate and homogenize the vaporization rate of the solvent in the sewage liquid, and then carry out the vaporization solvent. Condensation, recovery, with good solvent recovery efficiency.
  • FIG. 1 is a flow chart showing an embodiment of a solvent regeneration method of a dry cleaning machine according to an embodiment of the present invention.
  • Fig. 2 is a schematic view showing the structure of an embodiment of the dry type.
  • Figure 3 is a schematic view showing the structure of another embodiment of the dry cleaning machine.
  • Embodiments of the present invention provide a solvent regeneration method for a dry cleaning machine, including:
  • Spraying step spraying a dirty liquid mixed with a solvent and a stain
  • Vaporization step vaporizing the solvent in the ejected sewage to cause the solvent in the dirty liquid to become steam to separate the solvent and the stain;
  • Liquefaction step liquefying steam to obtain a liquid solvent
  • Recovery step Recover liquid solvent.
  • the vaporizing step vaporizes the solvent in the dirty liquid by heating the sprayed dirty liquid, and liquefying the steam to condense the liquid solvent
  • the solvent regeneration method of the dry cleaning machine includes a cycle of performing the spraying step, the vaporizing step, the liquefaction step, and the recovery step, and the sewage liquid sprayed by the spraying step is mixed with the solvent and the stain which are not separated in the vaporization step.
  • the dry cleaning machine is provided with an inner cylinder, an outer cylinder and a drying air duct, and a passage is formed between the inner cylinder and the outer cylinder, and the outer cylinder is provided with an air inlet, an air outlet, a liquid inlet and a liquid outlet, The air inlet and the air outlet are respectively connected with the two ends of the drying air duct, the drying air duct is provided with a condensing device that communicates with the air outlet, the drying air duct is used for conveying the hot air to the air inlet; the spraying step passes the sewage liquid through the liquid inlet Spraying into the outer cylinder, the vaporization step turns the solvent in the dirty liquid into steam by the hot air flowing through the passage, the liquefaction step condenses the steam into a liquid solvent through the condensing device, and the undissolved stains and solutions in the vaporization step pass through the outer cylinder The liquid port flows out and is mixed into the unsprayed liquid for the next injection.
  • the dry cleaning machine is provided with a heating box and a condensing device in communication with the heating box.
  • the spraying step includes: spraying the dirty liquid into the heating tank; the vaporizing step includes: heating the sprayed dirty liquid through the heating tank to change the solvent in the dirty liquid into steam; and the condensing step comprises: the condensing device Steam is collected from the heating chamber and condensed into a liquid solvent.
  • the recovering step includes mixing the liquid solvent in the condensing device into the unsprayed dirty liquid to form a turbidity-reduced dirty liquid; and the spraying step includes spraying the turbidity-reduced dirty liquid.
  • the recovering step includes collecting the liquid solvent from the condensing device.
  • the method further comprises: extracting step: extracting the dirty liquid generated by the dry cleaning machine to wash the laundry.
  • the dirty liquid sprayed by the spraying step is in a mist shape.
  • stopping the performing the vaporization step includes performing the spraying step again to clean the stains that were separated in the vaporization step.
  • an embodiment of the solvent regeneration method of the dry cleaning machine of the present invention comprises: Step S11 (spraying step): spraying a dirty liquid mixed with a solvent and a stain.
  • Step S13 vaporization step: The solvent in the ejected sewage is vaporized so that a part of the solvent in the dirty liquid becomes steam, and a part of the stain in the dirty liquid is separated from the solvent.
  • Step S 15 (liquefaction step): The vapor is liquefied to obtain a liquid solvent.
  • Step S 17 (recovery step): The liquid solvent is recovered.
  • steps S11, S13, S15, and S17 may be cyclically performed to perform solvent regeneration.
  • the above embodiment of the solvent regeneration method of the dry cleaning machine of the present invention can be applied to the solvent regeneration and the stain separation using the dry cleaning machine shown in Fig. 2.
  • the dry cleaning machine of Fig. 2 includes a heating tank 110, a drum 120, a dirty liquid tank 130, and a condensing device.
  • the heating tank 110 may include an inner wall and an outer wall (not shown).
  • a heating means may be provided between the inner wall and the outer wall for heating the inner wall of the heating box 110, and the inside of the hot box 110 reaches a high temperature of the vaporizable solvent.
  • the inner wall is preferably made of a heat conductive material such as a metal material.
  • the heating means between the inner wall and the outer wall of the heating box 110 may include an electric heating wire and a liquid oil.
  • the electric heating wire can be connected to the power supply device through a wire extending out of the heating box 110.
  • the electric heating wire can heat the liquid oil when the liquid is energized, and the liquid oil contacts the inner wall of the heating box 110 to conduct heat to the inner wall to open the inner wall.
  • the temperature is raised to a temperature at which the solvent is sufficiently vaporized.
  • the liquid oil has a lower boiling point, so it can generate heat more quickly and heat the inner wall to a high temperature.
  • the heating device may further include a heating jacket, and the heating wire and the liquid oil may be disposed in the heating jacket to improve safety and protect the inner and outer walls.
  • the heating tank 110 is provided with a liquid inlet that communicates inside and outside the tank, and an air outlet that communicates with the inside and the outside of the tank, and an injection device 115 is connected to the inlet.
  • the sewage tank 130 communicates with the injection device 115 through a pipe, and further communicates with the inlet port of the heating tank 110, on which the liquid suction pump 131 is disposed.
  • the sump tank 130 is in communication with the drum 120 through a circulation duct.
  • the circulation pipe includes an inlet pipe 151 and an outlet pipe 152.
  • the drum 120 removes stains of the laundry by reciprocating motion, and after completion of the laundry washing, the dirt mixed with the stain and the solvent in the drum 120 flows into the dirty tank 130 through the discharge conduit 152.
  • the condensing device 140 communicates with the air outlet of the heating box through the air pipe 160.
  • step S11 injection step
  • the dirty liquid in the dirty liquid tank 130 can be pumped to the injection device 115 by the liquid suction pump 131.
  • the spray device 115 sprays the dirty liquid into the heating tank 110.
  • the heating tank 110 vaporizes the solvent in the injected dirty liquid into steam by the high temperature inside thereof, and the stain in the injected dirty liquid is deposited on the inner wall of the heating tank 110.
  • the solvent vaporized into steam is passed through the air outlet condensing unit 140 of the heating tank 110.
  • step S15 the condensing device condenses the steam entering it into a liquid solvent.
  • step S17 the liquid solvent generated in the condensing device 140 can be re-introduced into the sump tank 130 through the liquid outlet 142 to be mixed with the smudging liquid in the sump tank, at which time the smudging liquid in the sump tank 130 The turbidity is reduced; at this time, in step S11, the spraying device 115 can spray the turbidity-reduced sewage liquid until the turbidity of the dirty liquid in the dirty liquid tank 130 is reduced to a preset value, of course Whether or not to stop the injection can be determined according to the time or the number of times of the cycle injection.
  • a turbidity sensor 132 may be disposed in the dirty liquid tank 130, the turbidity sensor 133 having signal transmission between the controller of the dry cleaning machine, and the turbidity sensor 132 detecting the turbidity of the dirty liquid in the dirty liquid tank 130
  • the controller controls the pumping pump 131 to stop pumping, so that the spray device 115 stops spraying the dirty liquid.
  • the step S11 may be performed again to clean the stain in the heating tank, and the drain pipe is set in the heating tank 110. Road to drain the stain inside the heating box.
  • the dirty liquid sprayed in step S11 is misty, and the misty liquid is more easily vaporized. It can increase the vaporization rate of the solvent. That is, the injection aperture of the ejection device 115 can be designed to be very small so that the ejected sewage is foggy.
  • step S15 the condensing device 140 absorbs steam from the heating tank 110 to condense and liquefy the steam, and by actively absorbing the steam, the liquefaction speed and the liquefaction amount of the steam can be further increased, and the solvent recovery efficiency is improved.
  • the condensing device 140 may be provided with a suction device 145 communicating with the inside thereof for sucking the steam generated in the heating tank 110 into the condensing device 140 for condensation.
  • the getter device is preferably a vacuum pump.
  • an embodiment of the solvent regeneration method of the dry cleaning machine of the present invention can also be applied to the solvent regeneration and stain separation using the dry cleaning machine shown in Fig. 3.
  • the dry cleaning machine of Fig. 3 includes a heating tank 210, a drum 220, a dirty liquid tank 230, and a condensing unit 240.
  • the drum 220 is connected to the dirty liquid tank 230 through a circulation pipe. After the laundry washing is completed, the dirty liquid in the drum 220 flows into the dirty liquid tank 230 through the liquid discharge pipe 252 of the circulation pipe.
  • the heating tank 210 includes an inlet port and an outlet port, and the injection port 215 is connected to the inlet port of the heating tank 210.
  • the dirty liquid tank 230 communicates with the injection device 215 through a pipe, and further communicates with the liquid inlet of the heating tank 210.
  • a suction pump 231 is provided on the pipe.
  • the condensing device 240 communicates with the air outlet of the heating tank 210 through the air pipe 260.
  • the condensing device 240 is provided with a liquid outlet 242, and the condensing device 240 is provided with a suction device 244 communicating with the interior thereof.
  • the dry cleaning machine of FIG. 3 is similar in structure and operation to the dry cleaning machine of FIG. 2, except that the dry, FIG. 3 includes a solvent tank 280, and the liquid outlet 242 of the condensing unit 240 is not associated with the dirty liquid tank 230. Connected to the solvent tank 280; the heating tank 210 is further provided with a liquid outlet 217 communicating with the dirty liquid tank 230. The drum 220 communicates with the solvent tank 280 through the inlet pipe 251 of the circulation pipe.
  • step S13 vaporization step
  • the solvent injected into the heating tank 210 is not completely vaporized
  • the remaining dirty liquid flows back to the dirty liquid tank 230 through the liquid outlet 217 of the heating tank 210.
  • step S17 recovery step
  • the liquid solvent generated in the condensing unit 240 can flow into the solvent tank 280 through the liquid outlet 242 to recover the solvent.
  • step S11 may be performed again to clean the stain in the remaining dirty liquid.
  • a liquid level sensor 232 can be disposed in the dirty liquid tank 230 for detecting the liquid level value in the dirty liquid tank 230, and the liquid level sensor 230 is connected to the controller of the dry cleaning machine, and the liquid level in the dirty liquid tank 230 When the value is reduced to the preset value, the controller of the dry cleaning machine controls the pump 231 disposed between the injection device 215 and the dirty liquid tank 230 to stop pumping, so that the spray device stops spraying the dirty liquid.
  • an embodiment of the solvent regeneration method of the dry cleaning machine of the present invention can also perform solvent regeneration and stain separation using the dry cleaning machine shown in Fig. 4.
  • the dry cleaning machine of Fig. 4 includes an inner cylinder 31, an outer cylinder 32, a clothes drying duct 37, a dirty liquid tank 33, a solvent tank 34, and a spraying device 35.
  • the inner cylinder 31 is disposed in the outer cylinder 32 and is formed with a passage through which the outer cylinder 32 can pass.
  • the outer cylinder 32 is provided with a liquid inlet port 321, a liquid outlet port 323, an air inlet port 325, and an air outlet port 327.
  • the air inlet 325 and the air outlet 327 are respectively communicated with the two ends of the clothes duct, the clothes duct 37 is for conveying hot air to the air inlet 325, and the drying duct 37 is provided with a condensing device for connecting the air outlet 327.
  • a fan 371 is provided at the air inlet 325, and a heating device 373 is provided on the drying duct 37 between the fan 371 and the condensing unit 375.
  • the fan 371 is configured to supply hot air to the air inlet 325.
  • the hot air is output from the air outlet 327 through the passage between the inner cylinder 31 and the outer cylinder 32.
  • the hot air output by the fan 371 is changed into cold air by the condensing device 375, and the heating device 373 changes the cold air.
  • the blower 371 can continuously deliver hot air to the air inlet 325.
  • the inner cylinder 31 is used for rolling laundry, and after the washing is completed, the clothes drying process is carried out in conjunction with the clothes drying duct 37.
  • the dirty liquid tank 33 communicates with the liquid inlet port 321, of the outer cylinder 32 through the spraying device 35, and communicates with the liquid outlet 323 of the outer cylinder 32 through the liquid discharge conduit 39. After the washing of the laundry is completed, the dirty liquid generated in the inner cylinder 31 enters the dirty liquid tank 33 through the liquid outlet 323 of the outer cylinder 12 and the liquid discharge conduit 39.
  • a liquid suction pipe 36 is connected between the dirty liquid tank 33 and the injection device 35, and a liquid suction pump 361 is provided on the liquid suction pipe 36.
  • the condensing unit 375 and the solvent tank 34 are connected by a recovery line 38.
  • step S11 injection step
  • the dirty liquid in the dirty liquid tank 33 can be pumped to the injection device 35 by the liquid suction pump 361.
  • the spraying device 35 sprays the dirty liquid into the outer cylinder 32.
  • step S13 the hot air generated by the clothes drying duct flows through the passage between the inner cylinder 31 and the outer cylinder 32, and the hot air can heat the sewage liquid injected into the outer cylinder to be sprayed.
  • the solvent in the dirty liquid becomes steam.
  • the stain in the sprayed dirt can be deposited on the outer wall of the inner cylinder.
  • step S11 sprayying step
  • step S13 vaporization step
  • the stain will flow into the dirty liquid tank 33 through the liquid outlet 323 along with the unvaporized dirty liquid to be mixed into the unsprayed dirty liquid for supply. Secondary injection.
  • the solvent that becomes steam enters the condensing unit 375 through the air outlet 327.
  • a filter may be provided on the drain conduit 39 to filter stains in the dirty liquid.
  • step S15 the condensing unit 375 condenses the steam entering the liquid into a liquid solvent.
  • step S17 recovery step
  • the liquid solvent generated in the condensing unit 375 is collected into the solvent tank 34 through the recovery pipe 38, thereby realizing the recovery and recovery of the solvent.
  • a liquid level sensor may be provided in the dirty liquid tank 33 to detect the liquid level value in the dirty liquid tank 33, and it is judged based on the liquid level value whether or not the execution of the spraying step is stopped.
  • the dirty liquid sprayed in the step S11 is in the form of a mist, and the misty liquid is more easily vaporized, thereby increasing the vaporization rate of the solvent. That is, the ejection orifice of the ejection device 35 can be designed to be very small so that the ejected liquid is foggy.
  • the solvent regeneration method of the dry cleaning machine of the present invention can enhance the treatment area when the sewage liquid is treated in the vaporization step by spraying the sewage liquid.
  • the sewage liquid and the vaporization tank can be increased by spraying the sewage liquid. The heat in the heat or the contact area of the hot air in the channel, thereby rapidly and uniformly vaporizing the solvent in the sewage, and condensing and recovering with the solvent vaporized, and having better solvent recovery efficiency.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps:
  • the foregoing storage medium includes: a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Description

干洗机的溶剂再生方法
本发明要求 2012年 09月 21 日向中国国家知识产? i提交的、 申请 号为 201210355305.5、名称为 "干洗机的溶剂再生方法"的中国专利申请 的优先权。
技术领域
本发明涉及洗衣机领域， 尤其涉及一种干洗机的溶剂再生方法。
背景技术
目前， 许多家电产品对应用于其中的材料都要求具有较好的回收利用 率， 才能满足市场需求。 干洗洗衣以其较强的清洁能力以及对衣物伤害少 的特点而普及至广大用户。 溶剂的再生是干洗洗衣技术的一个重要环节， 如何达到较好的溶剂回收效率是业界不断在研究的课题。
发明内容
在下文中给出了关于本发明的简要概述，以便提供关于本发明的某些 方面的基本理解。 应当理解， 这个概述并不是关于本发明的穷举性概述。 它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范 围。其目的仅仅是以简化的形式给出某些概念， 以此作为稍后论述的更详 细描述的前序。
在下文中给出关于本发明的简要概述，以便提供关于本发明的某些 方面的基本理解。应当理解，这个概述并不是关于本发明的穷举性概述。 它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的 范围。其目的仅仅是以简化的形式给出某些概念， 以此作为稍后论述的 更详细描述的前序。
本发明的一个主要目的在于提供一种溶剂回收率高的干洗机的溶 剂再生方法。
为实现上述目的，本发明提供了一种干洗机的溶剂再生方法， 包括 循环执行以下步骤：
喷射步骤： 喷射混合有溶剂和污渍的污液；
汽化步骤： 汽化喷射出的污液中的溶剂以使污液中的溶剂变为蒸 汽， 使污液中的溶剂和污渍分离；
液化步骤： 液化蒸汽以得到液体溶剂； 以及
回收步骤： 回收液体溶剂。
本发明的干洗机的溶剂再生方法通过对污液进行喷射，可增强汽化步 骤中处理污液时的处理面积， 以加快、 匀化污液中溶剂的汽化率， 并随之 对汽化的溶剂进行冷凝、 回收， 具有较好的溶剂回收效率。
通过以下结合附图对本发明的最佳实施例的详细说明，本发明的这些 以及其它的优点将更加明显。
附图说明
本发明可以通过参考下文中结合附图所给出的描述而得到更好的理 解，其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似 的部件。所述附图连同下面的详细说明一起包含在本说明书中并且形成本 说明书的一部分，而且用来进一步举例说明本发明的优选实施例和解释本 发明的原理和优点。 在附图中：
图 1 为本发明实施例的干洗机的溶剂再生方法的一种实施例的流程 图。
图 2为干¾^凡的一种实施例的结构示意图。
图 3为干洗机的另一种实施例的结构示意图。
本领域技术人员应当理解，附图中的元件仅仅是为了简单和清楚起见 而示出的， 而且不一定是按比例绘制的。 例如， 附图中某些元件的尺寸可 能相对于其他元件放大了， 以便有助于提高对本发明实施例的理解。
具体实施方式
在下文中将结合附图对本发明的示范性实施例进行详细描述。为了清 楚和简明起见， 在说明书中并未描述实际实施方式的所有特征。 然而， 应 该了解，在开发任何这种实际实施例的过程中必须做出很多特定于实施方 式的决定， 以便实现开发人员的具体目标， 例如， 符合与系统及业务相关 的那些限制条件，并且这些限制条件可能会随着实施方式的不同而有所改 变。 此外， 还应该了解， 虽然开发工作有可能是非常复杂和费时的， 但对 得益于^开内容的本领域技术人员来说，这种开发工作仅仅是例行的任 务。
在此，还需要说明的一点是，为了避免因不必要的细节而模糊了本发 明，在附图和说明中仅仅描述了与根据本发明的方案密切相关的装置结构 和 /或处理步骤， 而省略了对与本发明关系不大的、 本领域普通技术人员 已知的部件和处理的表示和描述。
本发明实施例提供了一种干洗机的溶剂再生方法， 包括：
喷射步骤： 喷射混合有溶剂和污渍的污液；
汽化步骤： 汽化喷射出的污液中的溶剂以使污液中的溶剂变为蒸汽， 使溶剂和污渍分离；
液化步骤： 液化蒸汽以得到液体溶剂； 以及
回收步骤： 回收液体溶剂。
可选地， 汽化步骤通过对喷射的污液进行加热以汽化污液中的溶剂， 液化步骤将蒸汽冷凝液体溶剂
可选地， 干洗机的溶剂再生方法包括循环执行喷射步骤、 汽化步骤、 液化步骤和回收步骤，喷射步骤喷射的污液中混合有在汽化步骤中未被分 离的溶剂和污渍。
可选地， 干洗机中设有内筒、外筒和干衣风道， 内筒和外筒之间形成 有通道， 外筒上设有进风口、 出风口、 进液口和出液口， 进风口和出风口 分别与干衣风道的两端连通，干衣风道上设有连通出风口的冷凝装置，干 衣风道用于向进风口输送热风； 喷射步骤将污液经进液口喷射至外筒中， 汽化步骤通过流经通道的热风将污液中的溶剂变为蒸汽，液化步骤通过冷 凝装置将蒸汽冷凝为液体溶剂，汽化步骤中未被分离的污渍和溶液经外筒 的出液口流出并混合至未经喷射的污液中供下次喷射。
可选地， 干洗机中设有加热箱和与加热箱连通的冷凝装置，
喷射步骤包括： 将污液喷射至加热箱中； 汽化步骤包括： 通过所述加 热箱对喷射的污液进行加热以将污液中的溶剂变为蒸汽；所述冷凝步骤包 括： 所述冷凝装置从所述加热箱中收集蒸汽并将其冷凝为液体溶剂。 可选地，回收步骤包括将冷凝装置中的液体溶剂混合至未经喷射的污 液中形成浊度减小的污液； 喷射步骤包括对浊度减小的污液进行喷射。
可选地， 回收步骤包括从所述冷凝装置中收集所述液体溶剂。
可选地， 喷射步骤之前还包括： 抽取步骤： 抽取干洗机洗涤衣物所产 生的污液。
可选地， 所述喷射步骤喷射的污液为雾状。
可选地，停止执行汽化步骤之后包括再次执行所述喷射步骤以清理在 汽化步骤中被分离的污渍。
参考图 1， 本发明的干洗机的溶剂再生方法的一种实施例包括： 步骤 Sll (喷射步骤）： 喷射混合有溶剂和污渍的污液。
步骤 S13 (汽化步骤）： 汽化喷射出的污液中的溶剂以使污液中的部 分溶剂变为蒸汽， 使污液中的部分污渍和溶剂分离。
步骤 S 15 (液化步骤 )： 液化蒸汽以得到液体溶剂。
步骤 S 17 (回收步骤）： 回收液体溶剂。
可选地， 可循环执行上述步骤 Sll、 S13 、 S15、 S17以进行溶剂再 生。
参考图 2, 本发明的干洗机的溶剂再生方法的上述实施例可应用图 2 所示的干洗机进行溶剂再生和污渍分离。
图 2中的干洗机包括加热箱 110、 滚筒 120、 污液箱 130和冷凝装置 该加热箱 110可包括内壁和外壁（图中未示出）。 可在内壁和外壁之 间设置加热装置， 用于对加热箱 110的内壁进行加热， 热箱 110内部 达到可汽化溶剂的高温。 内壁较佳材质为导热材料， 例如金属材料。
具体地，加热箱 110内壁和外壁之间的加热装置可包括电加热丝和液 体油。 电加热丝可通过延伸出加热箱 110的导线连接至供电装置，通电时 电加热丝可对液体油进行加热， 液体油与加热箱 110的内壁接触，将其热 量传导至内壁上以将内壁的温度升至可将溶剂充分汽化的温度。液体油沸 点较低， 因此可更快速地产生热量并将内壁加热至高温。
在其它实施例中，加热装置还可包括加热套，加热丝和液体油可设置 在加热套中， 以提高安全性并对内、 外壁起保护作用。 加热箱 110上设有连通箱体内部和外部的进液口，还设有连通箱体内 部和外部的出气口， 进液口处连接有喷射装置 115。
污液箱 130通过管道连通喷射装置 115， 进而连通加热箱 110的进液 口， 该管道上设有抽液泵 131。
污液箱 130通过循环管道与滚筒 120连通。 循环管道包括进液管道 151和出液管道 152。 滚筒 120通过往复运动去除衣物的污渍， 在完成衣 物洗涤后，滚筒 120中的混合有污渍和溶剂的污液经出液管道 152流入污 液箱 130中。
冷凝装置 140通过气管 160连通加热箱的出气口。
具体的， 当本发明的溶剂再生方法应用于图 2所示的干洗机中，在步 骤 S11 (喷射步骤） 中， 可通过抽液泵 131将污液箱 130中的污液抽至喷 射装置 115处， 喷射装置 115将污液喷射至加热箱 110内。
步骤 S13 (汽化步骤）中， 加热箱 110利用其内部的高温将喷射进来 的污液中的溶剂汽化为蒸汽， 而喷射进来的污液中的污渍沉积在加热箱 110的内壁上。 被汽化为蒸汽的溶剂经加热箱 110的出气口 冷凝装置 140中。
步骤 S15 (液化步骤） 中， 冷凝装置将进入其中的蒸汽冷凝为液体 溶剂。
步骤 S17 (回收步骤）中， 冷凝装置 140中产生的液体溶剂可经出液 口 142重新流入污液箱 130 中与污液箱中的污液进行混合， 此时污液箱 130中的污液的浊度减小； 此时， 在步骤 S11中， 喷射装置 115可对该浊 度减小的污液进行喷射， 直至污液箱 130中的污液浊度减小到预设值， 当 然也可以根据循环喷射的时间或次数确定是否停止喷射。
具体地， 可在污液箱 130中设置浊度传感器 132， 该浊度传感器 133 与干洗机的控制器之间具有信号传递， 当浊度传感器 132检测到污液箱 130中的污液浊度减少到预设值时， 控制器控制抽液泵 131停止抽液， 使 喷射装置 115停止喷射污液。
可选地， 为了进一步清除污液中的污渍， 可在步骤 S13 (汽化步骤） 停止工作之后， 再次执行步骤 S11 (喷射步骤） 以清理加热箱内的污渍， 并在加热箱 110中设置排污管路， 以排出加热箱内的污渍。
本实施例中，在步骤 S11中喷射的污液为雾状， 雾状液体更容易被汽 化， 能够提升溶剂的汽化率。 也就是说， 喷射装置 115的喷射孔径可设计 地非常小， 以使喷射出的污液为雾状。
可选地， 步骤 S15 (液化步骤） 中， 冷凝装置 140从加热箱 110中吸 收蒸汽以对蒸汽进行冷凝液化，通过主动吸收蒸汽可进一步提高蒸汽的液 化速度和液化量， 提升溶剂回收效率。
具体地， 冷凝装置 140上可设置连通其内部的吸气装置 145， 用以将 在加热箱 110中产生的蒸汽吸至冷凝装置 140中进行冷凝。该吸气装置优 选为真空泵。
参考图 3， 本发明的干洗机的溶剂再生方法的实施例还可应用图 3所 示的干洗机进行溶剂再生和污渍分离。 图 3中的干洗机包括加热箱 210、 滚筒 220、 污液箱 230、 冷凝装置 240。
与图 2中的干洗机类似， 滚筒 220通过循环管道连通污液箱 230。 在 完成衣物洗涤后，滚筒 220中的污液经循环管道的出液管道 252流入污液 箱 230中。
加热箱 210包括进液口和出气口，加热箱 210的进液口处连接有喷射 装置 215。 污液箱 230通过管道连通喷射装置 215， 进而连通加热箱 210 的进液口。 该管道上设有抽液泵 231。
冷凝装置 240通过气管 260连通加热箱 210的出气口， 冷凝装置 240 上设有出液口 242， 冷凝装置 240上设有与其内部连通的吸气装置 244。
图 3中的干洗机与图 2中的干洗机结构和工作方式相似， 区别在于： 图 3中的干、^1^包括溶剂箱 280， 冷凝装置 240的出液口 242不与污液 箱 230连通， 而与溶剂箱 280连通；加热箱 210上还设有与污液箱 230连 通的出液口 217。滚筒 220通过循环管道的进液管道 251连通溶剂箱 280。
当本发明的干洗机的溶剂再生方法的实施例应用图 3 中的干洗机进 行溶剂再生和污渍分离时，步骤 S13 (汽化步骤）中， 当喷射至加热箱 210 内的溶剂没有被完全汽化时，剩余的污液经加热箱 210的出液口 217流回 污液箱 230。
在步骤 S17 (回收步骤）中， 冷凝装置 240中产生的液体溶剂可经出 液口 242流入溶剂箱 280中， 以进行溶剂的回收。
可选地， 为了进一步清除污液中的污渍， 可在步骤 S13 (汽化步骤） 停止工作之后，再次执行步骤 S11 (喷射步骤）以清理剩余污液中的污渍。 可选地， 污液箱 230中可设置液位传感器 232， 用于检测污液箱 230 中的液位值， 液位传感器 230与干洗机的控制器连接， 当污液箱 230中的 液位值减少至预设值时，干洗机的控制器控制设置在喷射装置 215和污液 箱 230之间的抽液泵 231停止抽液， 使喷射装置停止喷射污液。
参考图 4， 本发明的干洗机的溶剂再生方法的实施例还可应用图 4所 示的干洗机进行溶剂再生和污渍分离。
图 4中的干洗机包括内筒 31、 外筒 32、 干衣风道 37、 污液箱 33、 溶 剂箱 34、 喷射装置 35。
内筒 31设于外筒 32之中并与外筒 32之间形成有能够^ 通过的通 道。 外筒 32上设有进液口 321、 出液口 323、 进风口 325和出风口 327。
进风口 325和出风口 327分别与干衣风道的两端连通， 干衣风道 37 用于向进风口 325输送热风， 干衣风道 37上设有连通出风口 327的冷凝 装置 375
干衣风道 37上在进风口 325处设有风机 371 , 干衣风道 37上还设有 加热装置 373位于风机 371和冷凝装置 375之间。风机 371用于向进风口 325输送热风，热风经内筒 31和外筒 32之间的通道后从出风口 327输出， 风机 371输出的热风经冷凝装置 375变为冷风，加热装置 373将冷风变为 热风供给风机 371， 则风机 371可不断地向进风口 325输送热风。
内筒 31用于滚动洗涤衣物，并在洗涤完成后配合干衣风道 37进行衣 物的烘干过程。
污液箱 33通过喷射装置 35连通外筒 32的进液口 321， 并通过排液 管道 39连通外筒 32的出液口 323。 完成衣物洗涤后， 在内筒 31中产生 的污液经外筒 12的出液口 323和排液管道 39进入污液箱 33。
污液箱 33和喷射装置 35之间连通有抽液管道 36,抽液管道 36上设 有抽液泵 361。
冷凝装置 375和溶剂箱 34之间通过回收管道 38连通。
具体的， 当本发明的溶剂再生方法应用于图 3所示的干洗机中， 步骤 S11 (喷射步骤）中， 可通过抽液泵 361将污液箱 33中的污液抽至喷射装 置 35处， 喷射装置 35将污液喷射至外筒 32中。
步骤 S13 (汽化步骤） 中， 干衣风道产生的热风流经内筒 31、 外筒 32之间的通道， 该热风可对喷射进入外筒的污液进行加热， 以将喷射的 污液中的溶剂变为蒸汽。 而喷射的污液中的污渍可沉积在内筒的外壁上。 可选地，为了进一步清除沉积在内筒上的污渍，可在步骤 S13 (汽化步骤） 停止工作之后， 再次执行步骤 S11 (喷射步骤） 以清理内筒上的污渍。
在其他实施例中，若喷射的污液只是部分被汽化，则污渍会随着未汽 化的污液经出液口 323流入污液箱 33中， 以混合至未经喷射的污液中供 下次喷射。 变为蒸汽的溶剂经出风口 327进入冷凝装置 375中。 可选地， 可在排液管道 39上设置过滤器以过滤污液里的污渍。
步骤 S15 (液化步骤） 中， 冷凝装置 375将进入其中的蒸汽冷凝为 液体溶剂
步骤 S17 (回收步骤）中， 冷凝装置 375中产生的液体溶剂经回收管 道 38收集进入溶剂箱 34中， 实现了溶剂的再生回收。
可选地， 与图 3中的干洗机类似， 污液箱 33中可设置液位传感器来 检测污液箱 33中的液位值， 并根据液位值判断是否停止执行喷射步骤。
本实施例中，在步骤 S11中喷射的污液为雾状， 雾状液体更容易被汽 化， 能够提升溶剂的汽化率。 也就是说， 喷射装置 35的喷射孔径可设计 地非常小， 以使喷射出的污液为雾状。
本发明的干洗机的溶剂再生方法通过对污液进行喷射，可增强汽化步 骤中处理污液时的处理面积，例如在上述实施例中，采用喷射污液的方式 可增大污液与汽化箱中的热量或通道中的热风的接触面积，从而快速、均 匀地汽化污液中的溶剂， 并随^†汽化的溶剂进行冷凝、 回收， 具有较好 的溶剂回收效率。
虽然已经详细说明了本发明及其优点，但是应当理解在不脱离由所附 的权利要求所限定的本发明的精神和范围的情况下可以进行各种改变、替 代和变换。
最后， 还需要说明的是， 在本文中， 诸如第一和第二等之类的关系术 语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定 要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而 且， 术语"包括"、 "包含"或者其任何其他变体意在涵盖非排他性的包含， 从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素， 而且还包括没有明确列出的其他要素， 或者是还包括为这种过程、 方法、 物品或者设备所固有的要素。 在没有更多限制的情况下， 由语句 "包括一 个 ...... "限定的要素， 并不排除在包括所述要素的过程、 方法、 物品或者 设备中还存在另外的相同要素。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机 可读取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： 只读存储器（Read-Only Memory, 简称 ROM )、 随才 "储器（Random Access Memory, 简称 RAM )、 磁碟或者光盘 等各种可以存储程序代码的介质。
以上虽然结合附图详细描述了本发明的实施例，但^ ί当明白，上面 所描述的实施方式只是用于说明本发明， 而并不构成对本发明的限制。对 于本领域的技术人员来说，可以在不偏离本发明的精神和范围的情况下对 上述实施方式作出各种修改和变更。 因此，本发明的范围仅由所附的权利 要求及其等效内容来限定。

Claims

权利 要求 书
1. 一种干洗机的溶剂再生方法， 其特征在于， 包括：
喷射步骤： 喷射混合有溶剂和污渍的污液；
汽化步骤： 汽化喷射出的污液中的溶剂以使污液中的溶剂变为蒸汽， 使溶剂和污渍分离；
液化步骤： 液化所述蒸汽以得到液体溶剂； 以及
回收步骤： 回收所述液体溶剂。
2.根据权利要求 1所述的干洗机的溶剂再生方法， 其特征在于， 所 述汽化步骤通过对喷射的污液进行加热以汽化污液中的溶剂，所述液化步 骤将所述蒸汽冷凝所述液体溶剂。
3.根据权利要求 2所述的干洗机的溶剂再生方法， 其特征在于， 所 述干洗机的溶剂再生方法包括循环执行所述喷射步骤、汽化步骤、液化步 骤和回收步骤，所述喷射步骤喷射的污液中混合有在所述汽化步骤中未被 分离的溶剂和污渍。
4.根据权利要求 2所述的干洗机的溶剂再生方法， 其特征在于， 所 述干洗机中设有内筒、外筒和干衣风道，所述内筒和外筒之间形成有通道， 所述外筒上设有进风口、 出风口、 进液口和出液口， 所述进风口和出风口 分别与所述干衣风道的两端连通，所述干衣风道上设有连通所述出风口的 冷凝装置，所述干衣风道用于向所述进风口输送热风； 所述喷射步骤将污 液经所述进液口喷射至所述外筒中，所述汽化步骤通过流经所述通道的热 风将污液中的溶剂变为蒸汽，所述液化步骤通过所述冷凝装置将所述蒸汽 冷凝为所述液体溶剂，所述汽化步骤中未被分离的污渍和溶液经所述外筒 的出液口流出并混合至未经喷射的污液中供下次喷射。
5.根据权利要求 2所述的干洗机的溶剂再生方法， 其特征在于， 所 述干洗机中设有加热箱和与所述加热箱连通的冷凝装置，
所述喷射步骤包括： 将所述污液喷射至所述加热箱中；
所述汽化步骤包括：通过所述加热箱对喷射的污液进行加热以将污液 中的溶剂变为蒸汽；
所述冷凝步骤包括：所述冷凝装置从所述加热箱中收集蒸汽并将其冷 凝为液体溶剂。
6.根据权利 5所述的干洗机的溶剂再生方法， 其特征在于，
所述回收步骤包括将所述冷凝装置中的液体溶剂混合至未经喷射的 污液中形成浊度减小的污液；
所述喷射步骤包括对所述浊度减小的污液进行喷射。
7.根据权利要求 4或 5所述的干洗机的溶剂再生方法， 其特征在于， 所述回收步骤包括从所述冷凝装置中收集所述液体溶剂。
8.根据权利要求 1-6任一项所述的干洗机的溶剂再生方法，其特征在 于， 喷射步骤之前还包括：
抽取步骤： 抽取干洗机洗涤衣物所产生的污液。
9.根据权利要求 1-6任一项所述的干洗机的溶剂再生方法，其特征在 于， 所述喷射步骤喷射的污液为雾状。
10.根据权利要求 1-6任一项所述的干洗机的溶剂再生方法， 其特征 在于，停止执行所述汽化步骤之后包括：再次执行所述喷射步骤以清理在 所述汽化步骤中被分离的污渍。
PCT/CN2013/083720 2012-09-21 2013-09-18 干洗机的溶剂再生方法 Ceased WO2014044178A1 (zh)

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