CN104153163A - Dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation - Google Patents
Dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation Download PDFInfo
- Publication number
- CN104153163A CN104153163A CN201410441066.4A CN201410441066A CN104153163A CN 104153163 A CN104153163 A CN 104153163A CN 201410441066 A CN201410441066 A CN 201410441066A CN 104153163 A CN104153163 A CN 104153163A
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- Prior art keywords
- distillation
- solvent
- pipeline
- tetrachloro
- ethylene
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention belongs to the field of washing equipment, and discloses a dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation. In order to solve the problem that solvent distillation recycling efficiency is low in the prior art, the improved scheme is provided, an air outlet of an air outlet pipe is formed in the top of a distillation box, inlet pipe openings, connected with a machine body, of flow distribution pipelines are arranged in a downwind port of a built-in cooler, a feedback pipeline and a connecting end of the machine body are arranged on the lower portion of a draught fan, a refrigeration compressor is adopted by the built-in cooler for refrigeration, the distillation recycling structure of the dry cleaning machine is optimized, the purpose of zero emission of tetrachloroethylene distillation is achieved through N time recycling processes of distillation and clothes washing and drying, the comfort of a using environment is improved, and used economic benefits are increased, and environment pollution is avoided.
Description
Technical field
The present invention relates to a kind of washing facility, more particularly, relate to a kind of N Distillation recovery tetrachloro-ethylene and reach the dry cleaner that distills zero-emission.
Background technology
Along with the improvement of people's life, the quality of wearing clothing improves a lot, simple cotton clothes was washed by hand, and was just washed and can meet in the past, the method that modern wool washes with water just may be out of shape after washing, and is a kind of brand-new mode from the dry cleaner of external introduction, and various clothings are had to adaptability widely, it is to clean with tetrachloro-ethylene organic solvent, it can dissolve the various oil stain dirts that are attached to surface of cloth get rid of, and can recover the former state of clothing after washing, and nondiscolouring is also indeformable.Tetrachloro-ethylene is a kind of liquid flux, it and clothing stir in the cylinder rotating, the each several part of clothing can fully be contacted with liquid flux, and dirt and clothing are departed from, liquid flux with dirt after washing is discharged, clothing in cylinder is heated to 40 to 60 degrees Celsius of liquid flux vaporizations of drying and make on clothes after drying, the tetrachloro-ethylene of vaporization can be reduced into original liquid condition after cooling.This liquid flux is a kind of extremely toxic substance and expensive, and the solvent therefore using must reclaim, and after cleaning, prepares against and uses.This dry cleaner should seal, to reduce gas or the injury of liquid flux to human body of evaporating, emitting, dripping or leaking of liquid or gas, the less pollution to environment of also trying one's best.Dry cleaner in prior art, because structural design is unreasonable, causes the rate of recovery of solvent lower, and has the solvent gas of part to discharge, staff is had to very major injury, in addition, older models distillation is halfway to be discharged from containing the partially liq solvent containing in the residue of dirt, because of the proportion of tetrachloro-ethylene more much bigger than water, this part refuse is in sewer inflow stream, and sink to river bed, its pollution spreads day by day, forever can not get rid of, therefore the requirement of, old-fashioned dry cleaner being improved is very urgent.
The applicant has proposed the application for a patent for invention of " follow-on closed dry washing machine " that application number is 200520104388.6 in 2005, and the application for a patent for invention of " modified double condenser double pressure relay closed type dry cleaning machine " that application number is 200620025447.5 proposed in 2006, and all obtain the authorization, it is that dry cleaner has been made to technical transformation, improve significantly the organic efficiency to solvent, leakage and the discharge of organic solvent are reduced, fundamentally having improved operator's working environment, is a kind of more satisfactory structure.But, find through process for a long time on probation, do not reach the effect reclaiming completely and realize zero-emission for the Distillation recovery of organic solvent tetrachloro-ethylene, need to be further improved existing machine, to realize Distillation recovery recycle and to realize zero-emission.The solid waste that contains tetrachloro-ethylene belongs to the dangerous solid waste of national regulation, belongs to global problem, is arbitrarily discharged in environment environment is caused to great injury.
Therefore, owing to existing the above-mentioned unrealized distillation of organic solvent tetrachloro-ethylene to reclaim completely and the problem of zero-emission in prior art, be, those skilled in that art's technical problems urgently to be resolved hurrily.
Summary of the invention
Object of the present invention is for providing a kind of N Distillation recovery tetrachloro-ethylene to reach the dry cleaner of distillation zero-emission, new improvement project is proposed, do not changing on the basis of the original pressure of thermal source evaporimeter, solvent recirculation system to dry cleaner is made structural change, overcome the defect in the dry cleaner of prior art, made the Distillation recovery rate of dry cleaner reach 100%.The present invention is more succinct in structural design, and efficiency is higher, has reached the object of distillation zero-emission, makes operating personnel no longer be subject to the harm of toxic gas, and soil is no longer polluted.
For achieving the above object, the invention provides following technical scheme:
N Distillation recovery tetrachloro-ethylene reaches a dry cleaner for distillation zero-emission, mainly comprises laundry wheel, the blower fan that in machine, gas circulation is used, the machine intercooler that makes solvent condenses use when oven dry, dry and make the radiator of solvent vaporization, the circulating pump that makes solvent circulate in machine in cleaning process or make solvent distillation circulate in purification process, distillation case, distillation case cooler, reclaim the liquid separator of solvent, the thermal source evaporimeter of distillation and oven dry use, be located at the pressure switch on thermal source evaporimeter, the pipeline of delivery solvent when work, the pipeline of solvent refluxing, conveyance conduit when cleaning solvent, after distillation, condense into the reflux line of solvent, the circulating line of thermal source steam, in machine and between distillation case, be provided with a gas distribution pipeline, first end at it is provided with the first automatic valve, after the first automatic valve, be provided with a whirlpool air pump, after described whirlpool air pump, be connected with discharge pipe, described discharge pipe is provided with the second automatic valve, and the air outlet of described discharge pipe is located at the top of described distillation case, between the top, side of liquid separator and fuselage, be provided with cryogenic gas feedback pipeline.
Preferably, the inlet pipe mouth that described gas distribution pipeline is connected with body is located at the lower air port of radiator.
Preferably, described feedback pipeline one end is located at the top, side of liquid separator, and its other end is located at the bottom of blower fan.
Preferably, described machine intercooler adopts refrigerant compression mechanism cold.
Beneficial effect of the present invention is:
1) in the further improvement of this programme, for ensure solvent recovery in distillation case thoroughly, the air outlet of discharge pipe is located to the top of distillation case, by the control of whirlpool air pump, the first automatic valve and the second automatic valve, make the hot-air that derives from internal body enter into distillation case by gas distribution pipeline, increase the air pressure in distillation case, promote tetrachloro-ethylene steam and enter into distillation case cooler, tetrachloro-ethylene is recycled; And prior art is directly located at the air outlet of discharge pipe on the sidewall of distillation case, only play the effect of carrying gas.And the air outlet of discharge pipe is located at top by this programme, its usefulness is: can be in conveying high-temperature gas, play the effect of impacting distillation case internal high temperature organic gas, increase pressure, the tetrachloro-ethylene gas that promotes to form after the heating of thermal source evaporimeter upwards impacts, and through being located at another pipeline of distillation box top, enters into cooler, high-temperature solvent gas enters into liquid separator through the cooling liquid that becomes, and tetrachloro-ethylene is separated.
2) the inlet pipe mouth that gas distribution pipeline is connected with body is located at the lower air port of machine intercooler, the gas that contains tetrachloro-ethylene this opportunity is cooling through machine intercooler, tetrachloro-ethylene wherein becomes liquid, pipeline through peripheral hardware enters into liquid separator, in remaining gas, do not contain tetrachloro-ethylene composition, reduce tetrachloro-ethylene enters distiller probability through whirlpool air pump, save circulation step, alleviate circulation power consumption, also can reduce to a certain extent the loss of tetrachloro-ethylene to whirlpool air pump.
3) feedback pipeline one end is located at the top, side of liquid separator, can make the tetrachloro-ethylene gas that enters into liquid separator again enter in body through feedback pipeline, carries out recirculation, plays the effect that feeds back tetrachloro-ethylene; Hot gas is transported in distillation case cooler from distillation case, due to cooling effect, can produce negative pressure, the other end of feedback pipeline is located at the bottom of blower fan, can be in the time opening blower fan, by the getter action of blower fan, reduce the negative pressure due to cooling generation in distillation case cooler, accelerate to absorb gas in feedback pipeline, accelerate the process of circulation, feedback pipeline plays the effect that feeds back and reduce negative pressure simultaneously.
4) refrigeration plant in machine intercooler changes refrigerant compression mechanism cold into by the water circulation refrigeration of original machine, has not only improved the performance of refrigeration, makes recovery more thorough, has also saved the utilization of water resource simultaneously.
Whirlpool air pump of the present invention attracts from the air in body, by being located at the air outlet of the discharge pipe that distills box top, to the bottom blowing of distillation case, it is cooling that the tetrachloro-ethylene steam in powerful promotion distillation case enters into distillation case cooler, become liquid state, enter into liquid separator and separate; When tetrachloroethylene solvent in distillation case reduces, distilling effect declines, now open blower fan, attract the gas from liquid separator in feedback pipeline, thereby pulling the tetrachloro-ethylene gas distilling in case to enter distillation case cooler carries out cooling, alleviate the negative pressure of distillation case cooler to retort gas, improved distillation speed, can have been reclaimed fast at distillation later stage raffinate.While distillation, liquid is not reclaimed thoroughly, reclaiming for N time of drying by laundry again (distilled and done washing and dry as same thermal source, in the time that drying, laundry opens thermal source evaporimeter, give the heating of distillation case simultaneously, make to distill the raffinate heat volatilization in case, obtaining N time reclaims), raffinate is thoroughly reclaimed, obtain the object of distillation zero-emission.This programme is mainly by the position of the air outlet of simple change discharge pipe, accelerates the circulation of tetrachloro-ethylene gas and reclaims, though improved cost is humble, but the working effect after improving is outstanding, solvent recovery efficiency improves greatly, has realized the zero-emission of solvent, reaches a qualitative leap.The present invention has significant economic benefit, has improved working environment, has ensured that operating personnel's is healthy.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention;
In figure: 1 is cylinder; 2 is blower fan; 3 is machine intercooler; 4 is radiator; 5 is circulating pump; 6 is distillation case; 7 is distillation case cooler; 8 is liquid separator; 9 is thermal source evaporimeter; 10 is the pipeline of delivery solvent; 11 is the pipeline of solvent refluxing; 12 is conveyance conduit; 13 is reflux line; 14 is circulation pipe; 15 is gas distribution pipeline; 16 is the first automatic valve; 17 is whirlpool air pump; 18 is discharge pipe; 19 is the second automatic valve; 20 is feedback pipeline; 21 is pressure switch.
Detailed description of the invention
The invention provides the dry cleaner that a kind of N Distillation recovery tetrachloro-ethylene reaches distillation zero-emission, prior art is simply transformed, having realized the distillation of tetrachloroethylene solvent reclaims completely, reach the object of zero-emission, significantly improve economic benefit, for operator provides a nontoxic comfortable working environment.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is known and detailed description, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
A kind of N Distillation recovery tetrachloro-ethylene as shown in Figure 1 reaches the dry cleaner of distillation zero-emission, mainly comprises laundry wheel (1), the blower fan (2) that in machine, gas circulation is used, the machine intercooler (3) that makes solvent condenses use when oven dry, dry and make the radiator (4) of solvent vaporization, the circulating pump (5) that makes solvent circulate in machine in cleaning process or make solvent distillation circulate in purification process, distillation case (6), distillation case cooler (7), reclaim the liquid separator (8) of solvent, the thermal source evaporimeter (9) of distillation and oven dry use, be located at the pressure switch (21) on thermal source evaporimeter, the pipeline of delivery solvent (10) when work, the pipeline (11) of solvent refluxing, conveyance conduit (12) when cleaning solvent, after distillation, condense into the reflux line (13) of solvent, the circulating line (14) of thermal source steam, in machine and between distillation case, be provided with a gas distribution pipeline (15), be provided with the first automatic valve (16) at its first end, after the first automatic valve (16), be provided with a whirlpool air pump (17), after described whirlpool air pump (17), be connected with discharge pipe (18), described discharge pipe (18) is provided with the second automatic valve (19), and the air outlet of described discharge pipe (18) is located at the top of described distillation case (6), between the top, side of liquid separator (8) and fuselage, be provided with cryogenic gas feedback pipeline (20).
Further, the inlet pipe mouth that described gas distribution pipeline (15) is connected with body is located at the lower air port of radiator (4).
Further, described feedback pipeline (20) one end is located at the top, side of liquid separator (8), and its other end is located at the bottom of blower fan (2).
Further, described machine intercooler (3) adopts refrigerant compression mechanism cold.
Use procedure of the present invention is: when work, clothing rolls in cylinder, clean cycle pump work, from solvent cell, extracting liquid solvent is in pipeline is sent into machine, when liquid flux collection in cylinder is deposited the value of regulation, close the valve of drawing liquid pipeline, now circulating pump makes the liquid flux in machine become recurrent state, clothing mutual agitation solvent is contacted evenly with the each several part of clothing under cylinder effect, time in accordance with regulations cleans after stirring, close circulating pump and open valve, liquid flux is back in solvent cell; Cylinder High Rotation Speed starts to dry, and simultaneously to heating in machine, evaporates solvent residual on clothing, and the solvent gas being evaporated condenses into liquid at machine intercooler place, flows in liquid separator, and then flow in solvent cell along pipeline; Used solvent contains the dirt on a lot of clothings, now open the valve on pipeline, start circulating pump solvent from extracting out and send into distillation case in solvent cell, give the heating of distillation case by thermal source evaporimeter, make tetrachloro-ethylene become gaseous state, enter into distillation case cooler cooling, flow back in solvent cell through liquid separator, the solvent of Distillation recovery is the most clean solvent, and dirt is because boiling point is left compared with high can not evaporation.Solvent is through the evaporation in distillation case, its liquid level can significantly decline, and in remainder, contain dirt and oil stain etc., cause the heating of thermal source evaporimeter to decline to the solvent evaporation in distillation case, and the negative pressure in distillate cooler is now serious, Distillation recovery successful declines.Be located at pressure switch controlled pressure on thermal source evaporimeter in 0.4 MPa left and right, when the liquid level in distillation case declines, the tetrachloro-ethylene gas of evaporation reduces, recovery ability reduces, pressure switch control of heat source evaporator stops operation, now first open the blower fan of being located on body, feedback gas in feedback pipeline is had to the wind action of drawing, also can reduce the negative pressure in distillate cooler simultaneously, again by opening the first automatic valve, the second automatic valve and whirlpool air pump, the air outlet of discharge pipe is located to the top of distillation case, by the air in body by shunt conduit and discharge pipe, be transported to vertically downward in distillation case, because being dries vertically downward, can be to the tetrachloroethylene solvent gas through heating evaporation with powerful thrust, make it enter into distillate cooler by pipeline fast and carry out condensation, be located at the side of distillation case than the mouth of pipe by discharge pipe of prior art, have the larger motive force of tetrachloro-ethylene gas after evaporation, accelerate the process of circulating condensing.While distillation, tetrachloro-ethylene liquid is not by Distillation recovery thoroughly, reclaiming for N time of drying by laundry again (distilled and done washing and dry as same thermal source, in the time that drying, laundry opens thermal source evaporimeter, give the heating of distillation case simultaneously, make to distill the raffinate heat volatilization in case, carry out condensation recovery, obtain N time and reclaim), raffinate is thoroughly reclaimed, obtained the object of distillation zero-emission.The improved prototype of this programme proves in the operation of trial employment period: the dry cleaner after improvements over the prior art, and have that work quality is high, solvent zero-emission, saved operating cost, improve economic benefit, improve working environment, ensure workman's health.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. N Distillation recovery tetrachloro-ethylene reaches a dry cleaner that distills zero-emission, mainly comprises laundry wheel (1), the blower fan (2) that in machine, gas circulation is used, the machine intercooler (3) that makes solvent condenses use when oven dry, dry and make the radiator (4) of solvent vaporization, the circulating pump (5) that makes solvent circulate in machine in cleaning process or make solvent distillation circulate in purification process, distillation case (6), distillation case cooler (7), reclaim the liquid separator (8) of solvent, the thermal source evaporimeter (9) of distillation and oven dry use, be located at the pressure switch (21) on thermal source evaporimeter, the pipeline of delivery solvent (10) when work, the pipeline (11) of solvent refluxing, conveyance conduit (12) when cleaning solvent, after distillation, condense into the reflux line (13) of solvent, the circulating line (14) of thermal source steam, it is characterized in that: in machine and between distillation case, be provided with a gas distribution pipeline (15), be provided with the first automatic valve (16) at its first end, after the first automatic valve (16), be provided with a whirlpool air pump (17), after described whirlpool air pump (17), be connected with discharge pipe (18), described discharge pipe (18) is provided with the second automatic valve (19), and the air outlet of described discharge pipe (18) is located at the top of described distillation case (6), between the top, side of liquid separator (8) and fuselage, be provided with cryogenic gas feedback pipeline (20).
2. N Distillation recovery tetrachloro-ethylene as claimed in claim 1 reaches the dry cleaner of distillation zero-emission, it is characterized in that: the inlet pipe mouth that described gas distribution pipeline (15) is connected with body is located at the lower air port of radiator (4).
3. N Distillation recovery tetrachloro-ethylene as claimed in claim 1 or 2 reaches the dry cleaner of distillation zero-emission, it is characterized in that: described feedback pipeline (20) one end is located at the top, side of liquid separator (8), and its other end is located at the bottom of blower fan (2).
4. N Distillation recovery tetrachloro-ethylene as claimed in claim 3 reaches the dry cleaner of distillation zero-emission, it is characterized in that: described machine intercooler (3) adopts refrigerant compression mechanism cold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441066.4A CN104153163A (en) | 2014-09-01 | 2014-09-01 | Dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410441066.4A CN104153163A (en) | 2014-09-01 | 2014-09-01 | Dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation |
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| CN104153163A true CN104153163A (en) | 2014-11-19 |
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| CN201410441066.4A Pending CN104153163A (en) | 2014-09-01 | 2014-09-01 | Dry cleaning machine achieving zero emission of distillation by recycling tetrachloroethylene through N time distillation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106988091A (en) * | 2017-05-31 | 2017-07-28 | 江苏海狮机械股份有限公司 | The supporting distilling machinery with dry cleaner |
| CN108502956A (en) * | 2018-05-29 | 2018-09-07 | 洛阳理工学院 | A kind of raffinate clean and reuse equipment |
| CN115403444A (en) * | 2022-09-08 | 2022-11-29 | 嘉兴学院 | Low-temperature recovery method of tetrachloroethylene in fur dry-cleaning waste |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106988091A (en) * | 2017-05-31 | 2017-07-28 | 江苏海狮机械股份有限公司 | The supporting distilling machinery with dry cleaner |
| CN108502956A (en) * | 2018-05-29 | 2018-09-07 | 洛阳理工学院 | A kind of raffinate clean and reuse equipment |
| CN108502956B (en) * | 2018-05-29 | 2024-01-19 | 洛阳理工学院 | Residual liquid cleaning and recycling equipment |
| CN115403444A (en) * | 2022-09-08 | 2022-11-29 | 嘉兴学院 | Low-temperature recovery method of tetrachloroethylene in fur dry-cleaning waste |
| CN115403444B (en) * | 2022-09-08 | 2023-12-22 | 嘉兴学院 | Low-temperature recovery method of tetrachloroethylene in fur dry-cleaning waste |
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Application publication date: 20141119 |
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