CN103097602A - Condensation dryer with integrated heat-exchanger cleaning, and method for operating the same - Google Patents
Condensation dryer with integrated heat-exchanger cleaning, and method for operating the same Download PDFInfo
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- CN103097602A CN103097602A CN2011800284417A CN201180028441A CN103097602A CN 103097602 A CN103097602 A CN 103097602A CN 2011800284417 A CN2011800284417 A CN 2011800284417A CN 201180028441 A CN201180028441 A CN 201180028441A CN 103097602 A CN103097602 A CN 103097602A
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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
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/22—Lint collecting arrangements
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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
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/45—Cleaning or disinfection of machine parts, e.g. of heat exchangers or filters
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/34—Filtering, e.g. control of lint removal devices
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- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a condensation dryer 1 having a drying chamber 3 for articles which are to be dried, having a process-air channel 2, in which are located a heating means 4 for heating the process air, a heat exchanger 5, 39 for cooling the process air, following passage through the drying chamber 3, and a fan 6 for delivering the process air, having a cleaning device 7, which operates with an aqueous liquid 26 and generates at least one liquid jet, and having a control device 8, wherein the cleaning device 7, during operation thereof, changes the direction and/or intensity of the at least one liquid jet. The cleaning device 7 has an arrangement which is in a fixed location relative to the heat exchanger 5, 39 and has at least one nozzle 13 for generating the at least one liquid jet, and the cleaning device 7 also has at least one movable body 10, which makes it possible to change the direction and/or intensity of the at least one liquid jet. The invention also relates to a preferred method for operating this condensation dryer.
Description
Technical field
The present invention relates to a kind of a kind of condensation dryer and method be used to moving described condensation dryer with integrated heat exchanger cleaning device.
Background technology
The operation principle of condensation dryer does not need exhaust hose and very welcome, because can use it in the laundry of indoor bathroom or large-scale apartment based on carrying out condensation to utilizing the heat treatment air to evaporate moisture from washings.(following also referred to as " drying machine ") carries air (being so-called processing air) to enter in the drying drum that comprises moist washings via heater by blower fan in condensation dryer.Moist washings to be dried is all in cylinder.Hot-air absorbs the moisture in washings to be dried.To process air by the humidity after cylinder now and be transported in heat exchanger, usually a lint filter will be arranged on the heat exchanger front.(for example air/air heat exchanger, perhaps heat pump is heat sink) cools down the processing air of humidity in this heat exchanger, thereby makes the moist contained water condensation in air of processing.Then usually condensate is collected in a suitable container, then will again be supplied to heater and cylinder through supercooling and dry air.
Process air and take away fine hair contained in washings to be dried by hothouse the time, these fine hair are very little suspended fabric particle.Larger tomentum is trapped in lint screen.But still some trickle fine hair passes lint screen and is deposited in the process air channel of filter screen back.Fine hair especially easily is deposited in heat exchanger, and the condensate of the cooling rear generation of humid heat treatment air is arranged here, and fine hair all is dampened, and therefore usually can adhere to.The fine hair that is deposited on heat exchanger can hinder processing air stream over-heat-exchanger and affect heat exchange, thereby makes the decrease in efficiency of condensation dryer, and easily breaks down.
Usually can pull down especially air/air heat exchanger of heat exchanger, therefore can from condensation dryer, its taking-up be cleaned, the flushing liquor of water and so on is rinsed remove the fine hair that adheres to, then it can be reloaded in drying machine.If but using the heat sink as heat exchanger of heat pump, not necessarily must do like this.The part of heat pump all is fixedly linked usually, can't it be taken out from condensation dryer with reversible manner.For example the parts of compressor heat pump are exactly this situation, because these parts all are incorporated in a sealing refrigerant circulation loop that is not easy to take apart.The parts of thermoelectric heat pump are also so, and the thermoelectric heat pump consists of the cramped construction unit that almost can't take apart, is included in the peltier-element that paltie effect wherein occurs, and paltie effect can cause the heat pumping.May be so same for other heat pump, for example adsorption type heat pump and the heat pump that utilizes the regeneration gas circulation.
Therefore, for the user, need to carry out determining and cleaning of requirement for cleaning to expend significantly for the heat exchanger of condensation dryer.If untimely cleaning heat exchanger may cause the condensation dryer deterioration of efficiency, even may cause condensation dryer to break down, thereby may need to place under repair.Therefore especially the measure of cleaning inside heat exchanger is known for more existing cleaning inside drying machines, usually uses the condensate that produces in condensation dryer to clean.
DE 199 43 125 A1 have described and a kind of processing air stream boot segment in household clothes dryer have been carried out Clean method, utilizing blower fan produce to process air stream and it is sent in hothouse with washings to be dried in drying stage contacts, close blower fan in cleaning stage outside drying stage, make cleaning solution at least part of flooding in certain duration scope process the air boot segment, remove this liquid when cleaning stage finishes from covered processing air boot segment.Preferably will be arranged in the condensate that the hothouse back is used for carrying out processing airborne moisture the heat exchanger of condensation and be used for flooding processing air-flow direction at cleaning stage.
DE 37 38 031 C2 have described a kind of method and a kind of device of removing fine hair from the condensate trap that is designed to heat exchanger.At least one process air channel can be used it for the discharge condensate with respect to coolant seals, and condensate is collected in the collection container that is arranged in the heat exchanger below until emptying.Described according to the method, the condensate of collecting with a part at least within the program segment of a free restriction rinses the inner surface of process air channel.The heat exchanger of described device is furnished with a flusher, and described flusher has at least one nozzle that points at least one inner surface of process air channel.
WO 2008/077708 A1 has described a kind of household electrical appliance and a kind of method of removing fine hair from the heat exchanger of these household electrical appliance.Especially with the condensate that produces in the dry run flushing liquor as cleaning stage, make flushing liquor deflection according to the air strength of flow, and flushing liquor can flow through according to deflection amplitude the zones of different of heat exchanger in household electrical appliance.But only have when volume fully large and/or the flow velocity of flushing liquor enough fast the time, could effective cleaning heat exchanger.How explanation is not achieved.
WO 2008/119611 A1 has described a kind of method and a kind of device that utilizes condensate that the parts within the processing air circulation loop that the is arranged in clothes washer-dryer especially evaporimeter of condensing unit are cleaned, in obtaining condensate and it is collected in the condensate water leg in processing air circulation loop from the washings of humidity, from water leg, condensate is transported to the eluant container of evaporimeter top.From its outlet side, condensate is exported to described parts in the mode that bursts open relevant eluant container.
DE 10 2,006 018 469 A1 have described a kind of dryer for washings, by the condensation on cooler with the air dewetting of carrying under the circulated air pattern, described cooler is the part of heat pump, described drying machine has one and is used for flooding, spray, flow through and/or the device of overflow evaporimeter and/or compressor, and filter is to being used for flooding, spray, flow through and/or the water of overflow filters.
DE 37 38 033 A1 have described a kind of device that gathers degree for monitoring fine hair.May be due to washings to be dried when the heat exchanger in drying machine is cleaned moisture in less and/or washings less, thereby have condensate very little and the situation that can't fully rinse heat exchanger.Utilize another shortcoming that the condensate in the dry cycle process repeatedly rinses to be, must leach and dispose before rinsing heat exchanger next time and contain fine hair impurity in the water that comes back to when those rinse heat exchangers in the condensate catch tray, although can solve in the mode that the alternative condensate of running water rinses, namely be equipped with a water swivel to drying machine, but thing followed problem is, because the hydraulic pressure of many countries is usually lower, therefore can't adjust the required water yield realizes optimum cleaning result.DE 10 2,008 040 846 A1 have described a kind of condensation dryer, comprise a hothouse that is used for holding article to be dried, process air channel (be used for the heat treated air heater, be used for carrying out cooling heat exchanger by the processing air after hothouse and all being positioned at wherein for delivery of the blower fan of processing air), a controller and the first member of being used for the identification requirement for cleaning.Condensation dryer can have the second component that utilizes the flushing liquor cleaning heat exchanger, and described second component preferably includes a flushing liquor storage tank especially condensate reservoir vessel, a lower vessel port and the cleaning channels between heat exchanger and storage tank.
DE 10 2,007 049 061 A1 have described a kind of condensate that utilizes the evaporimeter of the parts within the processing air circulation loop that is arranged in clothes washer-dryer especially condensing unit have been carried out Clean method, obtain condensate from the dry run of washings, it is collected in water-collecting tray, from the collection container that is transported to the evaporimeter top here, then be transported to relevant evaporimeter from its outlet side.In the mode that bursts open developing room, condensate is poured into parts.Describe in one embodiment a kind of device, can be in the process of gushing out that discharges water made flooding nozzle and/or downpipe process the beginning zone that air enters the evaporimeter of condensing unit and deflect into stub area from being positioned at by machinery, fluid power, arrangement for deflecting pneumatic or the motor machine operation.
WO 2009/031812 A2 has described a kind of dehydrating unit for drying machine, having a shell, one is arranged in the cylinder that is used for holding object to be dried in shell and one and is used for providing dry unit with hot-air, described dehydrating unit comprises the heat exchanger and the nozzle that are used for carrying out with the air from cylinder heat exchange, this arrangement of nozzles provides between unit and heat exchanger in hot-air, in order to for example spray into water.For example can utilize nozzle to remove the fine hair on dehydrating unit surface.In order to control the direction of spraying towards heat exchanger, can utilize drive motors with predetermined angular turn nozzle according to the embodiment shown in accompanying drawing 8, and can make the nozzle for injection move within certain scope according to the embodiment shown in accompanying drawing 9.
WO 2009/015919 A1 has described a kind of device for automated cleaning dryer air cleaner, have nozzle and at least one air filter unit (filter element) that at least one is used for spraying into liquid, described nozzle and filter element are installed through suitable, thereby it can be moved with respect to fixing infrastructural frame.A kind of embodiment shown in the drawings comprises a storage tank that be used for to collect stores liquid, be fixed on nozzle on framework, filter element and executing agency.Filter element is connected with framework by a swivel joint, makes the executing agency can be so that filter element moves with respect to framework and nozzle, thus the surface of progressive washing and filtering unit.Executing agency also can be so that nozzle rotates, and it is motionless that filter element keeps.
Summary of the invention
Under this background, task of the present invention be to provide a kind of can be with improved procedure to being arranged in the parts condensation dryer that cleans of heat exchanger especially in process air channel.
According to the present invention, adopt drying machine and the described method of corresponding independent claims with the described feature of corresponding independent claims, can solve this task.The described preferred embodiment that is drying machine of the present invention of dependent claims.The preferred embodiment of the method for the invention is corresponding to the preferred embodiment of drying machine of the present invention, and vice versa, even here not to this clear.
The present invention relates to a kind of condensation dryer, comprising: a hothouse that is used for article to be dried; A process air channel is for the heater of heat treated air, for making the heat exchanger that cools down by the processing air after hothouse and all being positioned at this process air channel for delivery of the blower fan of processing air; A cleaning device that utilizes liquid, aqueous work, described cleaning device produce at least one liquid beam; And control device; Wherein, described cleaning device can change direction and/or the intensity of at least one liquid beam in its course of work.Described cleaning device has one with respect to fixing arrangement and at least one mobile in heat exchanger position, described arrangement has at least one for generation of the nozzle of at least one liquid beam, and described mobile can change direction and/or the intensity of at least one liquid beam.
In a kind of preferred embodiment of condensation dryer, cleaning device comprises a liquid guiding channel with channel outlet, a mobile automatically controlled or fluid power is controlled is arranged in channel outlet, this mobile can change its position in the cleaning device course of work, so that the variable part liquid, aqueous to allow (following also referred to as " liquid ") of the cross section of release channel outlet flows through.The d/d cross section of channel outlet preferably its position and big or small aspect change in time.
According to of the present invention, mobile automatically controlled or that fluid power is controlled is unrestricted, as long as can change in time liquid, aqueous the flowing through of channel outlet cross section confession.For example mobile can be platelet or ball.
Mobile hides the zones of different in channel outlet cross section usually in the cleaning device course of work, thereby the liquid beam that can make at least one fixing nozzle of position is towards different direction deflection.Because the channel outlet cross section that can flow through for liquid reduces, liquid will improve flow velocity and flow through.Therefore the liquid beam is usually with the parts to be cleaned of high fast direction drying machine, thereby can bring into play better cleaning action.
Thus, cleaning device has at least one automatically controlled or fluid power is controlled mobile, and this mobile can change direction and/or the intensity (flow velocity and/or cross section) of at least one liquid beam.At this, preferably fluid power ground moves by means of the liquid, aqueous mobile that makes.
Yet also can realize in the following manner the temporal change in channel outlet cross section, that is, an individuality is configured to be provided with the disk of cut-out in passage, for example can make it around the longitudinal axis rotation of passage by electric driver.
If utilize liquid, aqueously to make mobile motion with fluid power, so also can affect in the mode of the material of selecting certain density and certain buoyancy the motion of mobile.
Cleaning device preferably has at least one passage, and described passage has a channel outlet, connects a nozzle on described channel outlet.Shape by nozzle can deflect into drying machine parts to be cleaned targetedly with described at least one liquid beam.And then cleaning device preferably is used for guiding liquid, aqueous passage to have a nozzle, and the cross section of described nozzle is along with become large with the increase of channel distance.
Mobile under static state preferably separates passage at channel exit and nozzle.Admission passage when if liquid is worked at cleaning device, will make mobile's appropriate exercise under liquid effects according to density and the mobility status in passage of mobile and liquid, thereby export the part of cross section away from the position under inactive state and open channel.
In a kind of particularly preferred embodiment of drying machine, there is a bypass inlet and bypass outlet to be arranged in passage, thereby can make the liquid, aqueous liquid, aqueous middle turbulization around mobile of a part that flows in the bypass between bypass inlet and bypass outlet, and make mobile's motion with this.
Can use one or more bypasses.Can suitably adjust in addition the especially angle that forms of bypass outlet and passage of the position of bypass inlet and bypass outlet and bypass, be conducive to thereby produce the flow that mobile moves most.Can cause that flow fluctuation helps the device of turbulization around mobile thereby can also adopt in passage and/or bypass.
In addition, passage is also preferred directly to have one in the channel outlet front and can at least part ofly hold the ledge of mobile, makes the d/d cross section of channel outlet to change in the cleaning device course of work.The cross section part of the channel outlet that " d/d cross section " expression described here can be flow through for liquid." directly in the channel outlet front " expression is enough to make the motion of mobile can cause the spatial neighbor that can supply the liquid, aqueous channel outlet changes of section of passing through.
In drying machine of the present invention, cleaning device utilizes the liquid, aqueous work of carrying out, and available various mode provides liquid, aqueous.Preferably cleaning device is connected with eluant container, water supply installation and/or condensate catch tray for this reason.
Water supply installation described here is often referred to the water supply installation of household tap water, and tap water hydraulic is at least 3 bar usually, but sometimes also can provide pressure ratio higher running water, for example 6 bar.
Be connected with water supply installation and just can use fresh water free from foreign meter to clean.Be connected with the condensate catch tray and just can use the condensate that produces in drying machine.Because the condensate in the condensate catch tray contains villous usually, therefore want filter freezing thing and/or blending from the fresh water of water supply installation in cleaning device before the use condensate.
Water supply installation and/or condensate catch tray can directly be connected with cleaning device, can connect in the centre pump and/or filter in case of necessity.Certainly come in the fresh water and/or at first condensate also can enter with cleaning device is connected eluant container of self-water-supplying device.
Eluant container comprises a kind of liquid, aqueous (following also referred to as " flushing liquor ") that cleans for the parts to process air channel usually.Flushing liquor generally includes condensate and/or from the running water of water supply installation.In order to improve cleaning action, can add the additive of other solvent (for example alcohol) or surfactant and so in flushing liquor.Eluant container can be also the part for liquid, aqueous larger collection container, then also the collection container that contains flushing liquor partly can be called developing room.Eluant container discussed below comprises this two kinds of possibilities.Eluant container can be arranged in condensation dryer in mode fixing or that can take out.
Drying machine of the present invention selectively comprises be used to the eluant container that contains aqueous rinse solution, and a lower vessel port and a tube connector are arranged between heat exchanger and eluant container.
Preferably after finishing, the dry run of moist washings to be dried cleans immediately or in the near future, even especially fine hair is moist or loose because at this moment be attached to impurity on parts or heat exchanger, is easy to by the flushing liquor of discharging, it be removed.In addition, at this moment condensate catch tray or eluant container have been full of condensate usually, it can be used for cleaning member, for example are used for cleaning heat exchanger.Usually also will just can begin dry run next time through the long time after each dry run finishes, therefore leaving time enough can be used for removing flushing liquor.
Cleaning device can be used for the different parts of cleaning drying machine, preferably those surfaces be contacted with the processing air parts that especially contact with the processing air that has been mingled with fine hair and clean.Therefore parts to be cleaned preferably the cylinder back process air channel and be arranged in heat exchanger in process air channel.
Therefore in a kind of particularly preferred embodiment of condensation dryer, with at least one liquid beacon alignment heat exchanger.Heat exchanger is a kind of air/air heat exchanger or heat pump heat sink preferably.
The user of drying machine can be manually or is automatically started cleaning device.In both cases, condensation dryer preferably has to identify the member that heat exchanger need to clean.
In a kind of preferred embodiment, condensation dryer has to identify the member that heat exchanger need to clean, and these are used for identifying the member that heat exchanger need to clean can determine access times U, with itself and setting value U
limCompare, when reaching U
limThe time, U namely satisfies condition
lim=U need to determine cleaning.
In a kind of preferred embodiment, counter is arranged as being used for identifying the member that needs cleaning, this counter can be determined completed dry run frequency n and with itself and the limit frequency n of setting
limCompare.When completing cleaning heat exchanger, this counter preferably can reset.
In another kind of preferred embodiment, a clock is arranged as being used for identifying the member that needs cleaning, the total duration t of completed dry run before this clock can be determined
sumAnd with itself and the limit duration t that sets
limCompare.When completing cleaning heat exchanger, this clock preferably can reset.
In another kind of preferred embodiment, condensation dryer of the present invention also comprises analytic unit in case of necessity as the member that is used for identification needs cleaning, and this analytic unit can be measured the total amount M of dry washing material and with its limit total amount M with setting
limCompare.When completing cleaning heat exchanger, the value of the total amount M that preferably can reset.
In addition, condensation dryer also preferably has volume flow measuring sensor as the member that needing in the identifying processing air duct to be used for cleaning.Analytic unit is measured total volumetric flow rate V and with itself and limiting volume flow V
limCompare, then just can start cleaning device, then preferably will be worth V and reset.
In another kind of preferred embodiment, analytic unit can observe at the processing air-flow direction temperature sensor measurement thermograde Δ T that is arranged in the heater back by one, with this thermograde and limiting temperature gradient delta T at last
limCompare.If the thermograde of overstepping the extreme limit starts cleaning course.
According to of the present invention, condensation dryer preferably has the acoustics and/or the optics display member that show requirement for cleaning and/or be used for showing the cleaning device duty.
After the requirement for cleaning of determining heat exchanger, preferably utilize cleaning device that heat exchanger is cleaned.Can be automatically or the mode controlled of the user by condensation dryer use liquid, aqueous the cleaning.Whether can arrange on condensation dryer wants automatic or manual to clean for this reason.
Condensation dryer of the present invention pure drying machine can be designed to, but also clothes washer-dryer can be designed to.Clothes washer-dryer described here refers to a kind of unit equipment, has the washing function that washings is washed and moist washings is carried out dry functions/drying.The benefit of washing dryer is to be connected on water supply installation.
The invention still further relates in addition a kind of method that makes condensation dryer work, described condensation dryer comprises: a hothouse that is used for article to be dried; A process air channel is for the heater of heat treated air, for making the heat exchanger that cools down by the processing air after hothouse and all being positioned at this process air channel for delivery of the blower fan of processing air; One is utilized liquid, aqueous work to produce the cleaning device of at least one liquid beam, described cleaning device has one with respect to fixing arrangement and at least one mobile in heat exchanger position, described arrangement has at least one for generation of the nozzle of at least one liquid beam, and described mobile can change direction and/or the intensity of at least one liquid beam; And comprise a control device.According to described method, cleaning device can change direction and/or the intensity of at least one liquid beam in its course of work, and loads described heat exchanger with described at least one liquid beam.
Can with default quantitative liquid, aqueous parts to be cleaned especially heat exchanger are cleaned, can consumption be set according to the requirement for cleaning degree of measuring.
The method that makes condensation dryer work of the present invention is preferably utilized a kind of condensation dryer that has to identify the member that heat exchanger need to clean, and describedly is used for measuring the member that heat exchanger need to clean and can determines access times U, with itself and setting value U
limCompare, when reaching U
limThe time, U namely satisfies condition
lim=U need to determine cleaning.
Access times U and setting value U
limType and size depend on the type of member used.If this member is a counter, access times U normally can increase its value one natural number at every turn when completing drying program.Setting value U
limIn the situation that usage counter is equally also a natural number usually.If U=U
lim, define requirement for cleaning, and usually can begin to carry out method of the present invention.
Measured value U and setting value U
limBe respectively a period of time Δ t in the situation of clock in use, the total amount M of dry washing material is respectively weight in the situation that use.
According to the method described in the present invention, the requirement for cleaning that preferably shows heat exchanger to be cleaned with acoustics and/or optical mode.Because the user who makes like this condensation dryer can identify requirement for cleaning, therefore except automated cleaning, acoustics and/or optics show that the mode of requirement for cleaning also makes the user can control cleaning.
According to the method described in the present invention, the liquid, aqueous condensate that preferably includes preferably is transported to heat exchanger from eluant container with liquid, aqueous at this, with in after crossing, it being collected in the condensate catch tray, and again is pumped back to eluant container.More than can carrying out this circulation once in the method.
If the user does not use drying machine anyway, control device also can be carried out at night automated cleaning.Under any circumstance drying machine all can show cleaning stage on the horizon, and can point out where necessary the user will be not emptying as the condensate that eluant container uses, in order to there are enough condensates to clean for cleaning device.
According to a kind of preferred embodiment of the method for the invention, cleaned by the user of condensation dryer, for example from water supply installation, running water is joined eluant container, until reach certain water yield (for example 3 liters).Whether the water yield of adding depends on deposits condensate with eluant container or whether eluant container contains condensate.Then use this just can for example select a cleaning procedure on condensation dryer.Then begin to carry out one or more cleanings by control device.Show beginning and the end of cleaning to the user with acoustics and/or optical mode.If the eluant container that can take out, after the flushing liquor that be through with cleaning and blowback were in case of necessity used, the user can take out eluant container and turned letter flushing liquor by hand according to the pollution condition of flushing liquor used.Also can select automatically to dispose flushing liquor by the discharging hose of condensation dryer.
The invention has the advantages that, can use in condensation dryer and liquid, aqueously clean with high cleaning effect.Can use the water of capacity that the zone used of parts to be cleaned in process air channel in dryer is cleaned, can improve hydraulic pressure in addition.The heat exchanger of the mode high-efficiency cleaning condensation dryer of therefore can be automatically or exerting one's influence by the user.In embodiments of the present invention can also be in the situation that do not open the requirement for cleaning that condensation dryer is measured heat exchanger.The present invention cleans because usually can take out the heat sink of heat pump from condensation dryer in the situation that use heat pump particularly preferably.Also the heat exchanger of condensation dryer can be cleaned simply and easily, mechanical intervention need to be do not carried out in equipment.Neither need writing brush, filter, also do not need brush to clean.Because the present invention can realize cleaned at regular intervals heat exchanger as required, therefore can improve the efficient of drying machine and obviously reduce failure prone.
Description of drawings
About more details of the present invention, can consult followingly about condensation dryer of the present invention and the embodiment that makes the method for condensation dryer work of the present invention, but the present invention is not limited to these embodiment.Examine accompanying drawing 1～4 at this.
The vertical section of the accompanying drawing 1 described condensation dryer of the first embodiment, described condensation dryer is designed to exhaust air dryer.
The vertical section of the accompanying drawing 2 described condensation dryers of the second embodiment, described condensation dryer is designed to circulation dryer.
Accompanying drawing 3 can produce four liquid beams and the section of the cleaning device that can use in the third embodiment of condensation dryer of the present invention.
The amplification profile of cleaning device shown in accompanying drawing 4 accompanying drawings 3, the generation that shows in detail the liquid beam.
The specific embodiment
Filled arrows in accompanying drawing 1～4 represents to process the flow direction of air, and hollow arrow represents liquid, aqueous flow direction.
Drying machine 1 shown in accompanying drawing 1 has one can be around the cylinder of horizontal rotational shaft as hothouse 3, will be for make the taking within moving part 25 is fixed on cylinder of the washings motion of not drawing in figure at roller rotating process.The air that utilizes blower fan 6 to make in process air channel 2 to send into passes cylinder 3 from air inlet entrance 23 via air/air heat exchanger 5 and electric heater unit 4.At this, the side that the air after electric heater unit 4 heating is arranged in door 22 opposites from cylinder 3 is transported to cylinder 3 via the aperture bottom of cylinder.
After discharging from cylinder 3, the processing air that has absorbed moisture is delivered to air exit 24 via air/air heat exchanger 5 in process air channel 2.Process air and at first flow to lint screen 38 within the door 22 of sealing dispensing port via the dispensing port of cylinder 3, then in door 22, it deflected down and continue transported to air/air heat exchanger 5.The moisture that absorbs from the processing air of washings is through supercooling condensation here, and is collected in condensate catch tray 17.
Condensate catch tray 17 is connected with the eluant container 19 that wherein has liquid, aqueous 26 by the condensate passage 18 that a pump 28 is wherein arranged.Eluant container 19 also is connected to water supply installation 27 by joint 33 with for controlling the two-way valve 29 that supplies water in addition.Liquid, aqueous 26 can enter cleaning device 7 via lower vessel port 21 and tube connector 20 from eluant container 19.In embodiment shown here, cleaning device 7 comprises a passage 9 that is connected with eluant container 19 by tube connector 20.A bypass 16 and a ledge 11 are arranged in this passage, and the mobile 10 of design balling-up is arranged in this ledge.Mobile 10 separates passage 9 and nozzle 13 under the inactive state of cleaning device 7.If liquid, aqueous through passage 9 and bypass 16, will surround mobile 10 liquid, aqueous 26 in turbulization, make ball 10 move back and forth in ledge 11, thereby expose the different cross section part of the channel outlet of not drawing here.Result will temporarily change from flow velocity and the direction of the liquid beam of nozzle 13 ejaculations, although nozzle 13 position maintenance own immobilizes.Described nozzle makes its cross section along with the distance with channel outlet increases and becomes large through suitably design.In embodiment shown here, point to the inner surface of air/air heat exchanger 5 from the liquid beam of nozzle 13.Due to the direction that can change the liquid beam, therefore can effectively remove the fine hair that is attached on air/air heat exchanger 5 inner surface different pieces.
That uses in cleaning device 7 in this embodiment, liquid, aqueous 26 can be from as taking out the eluant container 19 of storage device.Add from the fresh water of water supply installation 27 and/or from the condensate of condensate catch tray 17 for eluant container 19, can utilize pump 28 to pump condensate via condensate passage 18 from the condensate catch tray.When cleaning, lower vessel port 21 is opened, be transported in cleaning device 7 liquid, aqueous 26 by tube connector 20, in air/air heat exchanger 5, fix with respect to this heat exchanger position by nozzle 13 with liquid, aqueous Clean-liquid beam delivery as changing its direction and intensity for cleaning device.
After having cleaned heat exchanger 5, can will used liquid, aqueous 26 for example be collected in as shown in the figure in condensate catch tray 17 in cleaning device, and it can be pumped in eluant container 19 and reuse, perhaps dispose in the mode that there is no expression in scheming.
The drying machine of embodiment shown in figure can automatically or manually boot cleaning device 7 and method of the present invention.
According to the first embodiment shown in here, can in the hope of requirement for cleaning for startup automatically or in the situation of manually booting as drying machine user's information.
For this reason, in this embodiment, a sensor 34 that is used for measuring volume flow is arranged in heater 4 back in process air channel 2.The total volumetric flow rate V that analytic unit 37 can utilize this sensor to measure to process air and with itself and limiting volume flow V
limCompare.Because the volume flow of processing air can descend when heat exchanger 5 is dirty, if total volumetric flow rate V is lower than limiting volume flow V
lim, will start cleaning course by analytic unit 37.The sensor 34 that is designed to volume flow measurement sensor 34 is placed on to process there is no greatly in air loop and hinder, but still preferably be placed on heater 4 back, there is no fine hair and similar pollutant here because process air stream, thereby can carry out for a long time reliable measurements.
Also can consider a sensor for measuring temperature that is placed on described position is come substituted volume flow measuring sensor 34, analytic unit 37 utilizes sensor for measuring temperature measure to process the thermograde Δ T of air and with itself and limiting temperature gradient delta T
limCompare.Because the volume flow of processing air can descend when heat exchanger 5 is dirty, the temperature of heater 4 back will raise, the thermograde Δ T if thermograde Δ T oversteps the extreme limit
lim, analytic unit 37 will start cleaning course.
In the embodiment shown in accompanying drawing 1, the analytic unit 37 that also has counter 33, a clock 34 and a corresponding programming of process that is used for counting dry run number of times is as the complementarity member of the requirement for cleaning that is used for determining air/air heat exchanger 5, these members or be the part of control device 8 of condensation dryer 1 or corresponding with it.
In the embodiment shown in accompanying drawing 1, when finding requirement for cleaning is arranged, will start cleaning course by control device 8 or analytic unit 37, utilize as mentioned above cleaning device 7 clean airs/air heat exchanger 5.Can repeat this operation in case of necessity.
In the embodiment shown in accompanying drawing 1, utilize gantry post idler pulley 3 and utilize end cap to support its front on rear base plate, the flange of cylinder 3 lies low on draw runner 31 on end cap 32, goes up in front thereby be fixed.Control drying machine by control device 8, the user can be led to operating unit 36 control set for adjusting.
In the embodiment shown in accompanying drawing 1, drive blower fan 6 and cylinder 3 by motor 30.
Accompanying drawing 2 is depicted as the vertical section of the described condensation dryer 1 of the second embodiment of the present invention, and described drying machine is designed to circulation dryer.Therefore this embodiment lacks an air inlet and an exhaust passage.Be with the difference of accompanying drawing 1 illustrated embodiment, the heat treatment air that has been mingled with moisture from cylinder 3 is carried out coolingly in the evaporimeter 39 of heat pump, described heat pump also comprises a liquefier 40, a compressor 41 and a choke valve 42.
Drying machine 1 shown in accompanying drawing 2 has one can be around the cylinder of horizontal rotational shaft as hothouse 3, will be for make the taking within moving part 25 is fixed on cylinder of washings motion at roller rotating process.Utilize blower fan 6 transport process air through electric heater unit 4 in the process air channel 2 of sealing.Then heated processing air enters in cylinder 3, takes out the moisture of the washings of not drawing in figure here.Processing air after electric heater unit 4 heating namely is transported to cylinder 3 bottom the porous of cylinder from cylinder 3 one sides on one of them 22 opposite from behind.Damp and hot processing air leaves cylinder 3 via lint screen 38, and flows to the evaporimeter 39 of heat pump in process air channel 2.Cooling damp and hot processing air in evaporimeter 39, and by compressor 41, the heat pump refrigerant that evaporates is delivered to liquefier 40.Cold-producing medium liquefies in liquefier 40, and with thermal release to the processing air through supercooling and dehumidifying that flows in process air channel.Then liquid refrigerant is delivered to evaporimeter 39 again via choke valve 42, so refrigerant circulation loop is closed.
The condensate that produces in evaporimeter 39 is collected in condensate catch tray 17, and utilize condensate pump 28 in condensate passage 18 with its pumping to cleaning device 7.Can be used for according to the described cleaning evaporimeter 39 of this embodiment with this condensate and/or from the fresh water of water supply installation 27 in cleaning device 7.
Here the condensate that produced in evaporimeter 39 can utilize that pump 28 will use in case of necessity in cleaning device 7 before from condensate catch tray 17 via 18 pumpings of condensate passage to cleaning device 7.Completing after cleaning can be with liquid, aqueous being collected in condensate catch tray 17 of crossing, and can with its again pumping to cleaning device 7.Can repeat this circulation in case of necessity.Here a filter that is used for isolating from condensate fine hair of not drawing can be arranged in condensate passage 18.
Also can use in addition direct fresh water from water supply installation 27 to clean in the cleaning device 7 of the second embodiment.
Can reuse as shown in Figure 1 or dispose liquid, aqueous for what clean.
In the second embodiment of drying machine shown in accompanying drawing 2, there is no to adopt the member of determining requirement for cleaning.Therefore control device 8 designs through suitable, thereby can automatically use cleaning device 7 to clean after the one or many dry run.
About the implication of other Reference numeral, can consult Fig. 1, described Reference numeral has identical function in described Fig. 1.
Accompanying drawing 3 is depicted as the section of the cleaning device 7 that uses in the third embodiment of condensation dryer.The part section of the third embodiment of drying machine that cleaning device 7 is shown here comprises a liquid distributor 43, this liquid distributor will be from the moisture dispensing of the fresh water of not drawing in detail here and/or condensate water supply pipe four shower nozzles 44～47 shown in here.Cleaning device 7 shown in can utilizing here produces four liquid beams.Can separate or these liquid beams of generation that interdepend.In order to explain in detail the cleaning device 7 that uses in drying machine of the present invention, can find out have four shower nozzles 44～47 to be in different duties from the liquid beam of different intensity and different directions.Certainly only have when there is no when perhaps by the mechanism that does not draw in figure, liquid distributor 43 being separated with shower nozzle 47, could to realize the duty (inactive state) of shower nozzle 47 when liquid, aqueous in liquid distributor 43.
Each in shower nozzle 44～47 all has a passage 9, a bypass 16 and a ledge 11 is arranged in this passage between bypass inlet 14 and bypass outlet 15.The mobile 10 of design balling-up is arranged in ledge 11, and this mobile (with reference to duty of shower nozzle 47) under the inactive state of cleaning device 7 separates passage 9 and nozzle 13.If liquid, aqueous through passage 9 and bypass 16, will in the liquid, aqueous middle turbulization of surrounding mobile 10, make ball 10 move back and forth in ledge 11, thereby expose the different cross section part of channel outlet 12.Can make ball 10 motions with fluid power by liquid, aqueous like this, result just can temporarily change from flow velocity, cross section and the direction of the liquid beam of nozzle 13 ejections.Described nozzle 13 makes its cross section along with the distance with channel outlet increases and becomes large through suitably design.
Under the duty of shower nozzle 44 shown here, ball 10 is positioned near the right side at passage 9 centers bypass outlet 15, and the bypass that has so just reduced to pass through for liquid exports 15 cross section.In bypass, the liquid, aqueous pressure that causes raises, thereby again oppresses ball 11 left, especially can oppress the center that ball 10 is crossed passage 9 left.Duty by shower nozzle 45 represents the duty of existence afterwards.Ball 10 then comes back to the center of passage 9.Under the duty shown in foundation shower nozzle 46, liquid, aqueously flow through from ball 10 surroundings, and ball opens channel outlet 12 and makes liquid, aqueous outflow, wherein, described liquid, aqueously here discharge from nozzle 13 as the liquid beam of the central authorities of boundling.
Accompanying drawing 4 is depicted as the amplification profile of cleaning device 7 shown in accompanying drawing 3, can find out significantly in the shower nozzle 46 shown in accompanying drawing 3 to have produced the liquid beam.
List of numerals
Claims (14)
1. condensation dryer (1), comprising: a hothouse (3) that is used for article to be dried; A process air channel (2), be used for the heat treated air heater (4), be used for making by the air cooled heat exchanger of hothouse (3) processing afterwards (5,39) and for delivery of the blower fan (6) of processing air and be arranged in described process air channel; A cleaning device (7) that utilizes liquid, aqueous (26) work, described cleaning device produces at least one liquid beam in order to described heat exchanger (5,39) is cleaned; An and control device (8), wherein, described cleaning device (7) changes direction and/or the intensity of described at least one liquid beam at its run duration, it is characterized in that, described cleaning device (7) has one with respect to heat exchanger (5,39) fixing arrangement and at least one mobile (10) in position, described arrangement has at least one nozzle for generation of described at least one liquid beam (13), and described mobile allows the direction of described at least one liquid beam and/or intensity to change.
2. condensation dryer according to claim 1 (1), it is characterized in that, described cleaning device (7) has the passage (9) of a guiding described liquid, aqueous (26), described passage has at least one channel outlet (12) that is positioned at described at least one nozzle (13) front, mobile (10) automatically controlled or that fluid power is controlled is arranged in described channel outlet, described mobile (10) is arranged at described cleaning device (7) run duration and changes its position, so that discharge described channel outlet (12) cross section variable part so that liquid, aqueous (26) flow through.
3. condensation dryer according to claim 2 (1), is characterized in that, the d/d cross section of described channel outlet (12) is changing aspect its position and size in time.
4. condensation dryer according to claim 3 (1), is characterized in that, described mobile (10) fluid power ground moves by means of described liquid, aqueous (26).
5. the described condensation dryer of any one (1) according to claim 1～4, it is characterized in that, described cleaning device (7) has at least one passage (9), described passage has a channel outlet (12), connects a nozzle (13) on described channel outlet.
6. condensation dryer according to claim 5 (1), is characterized in that, described mobile (10) under static state locates described passage (9) to separate with nozzle (13) in described channel outlet (12).
7. according to claim 5 or 6 described condensation dryers (1), it is characterized in that, a bypass inlet (14) and bypass outlet (15) are arranged in described passage (9), thereby can make a part that flows in the bypass (16) between bypass inlet (14) and bypass outlet (15) of liquid, aqueous (26) surround in liquid, aqueous (26) of described mobile (10) turbulization and with this, described mobile (10) is being moved.
8. the described condensation dryer of any one (1) according to claim 5～7, it is characterized in that, described passage directly has a ledge (11) that can hold at least in part described mobile (10) in described channel outlet (12) front, thereby makes the d/d cross section of described channel outlet (12) change at described cleaning device (7) run duration.
9. the described condensation dryer of any one (1) according to claim 1～8, it is characterized in that, described cleaning device (7) and then one be used for guiding the passage (9) of liquid, aqueous (26) to have a nozzle (13), the cross section of described nozzle is along with becoming large with the increase of described passage (9) distance.
10. the described condensation dryer of any one (1) according to claim 1～9, is characterized in that, described cleaning device (7) is connected with eluant container (19), water supply installation (27) and/or condensate catch tray (17).
11. according to claim 1～10, the described condensation dryer of any one (1), is characterized in that, described at least one liquid beam points to towards described heat exchanger (5,39).
12. according to claim 1～11, the described condensation dryer of any one (1), is characterized in that, described heat exchanger is heat sink (39) of air/air heat exchanger (5) or heat pump (39,40,41,42).
13. according to claim 1～12, the described condensation dryer of any one (1), is characterized in that, described condensation dryer has the device (33,34,35,37) of the requirement for cleaning of the heat exchanger of identification (5,39).
14. a method that is used for operation condensation dryer (1), described condensation dryer comprises: a hothouse (3) that is used for article to be dried, a process air channel (2), be used for the heat treated air heater (4), be used for making by the air cooled heat exchanger of hothouse (3) processing afterwards (5,39) and for delivery of the blower fan (6) of processing air and be arranged in described process air channel, a cleaning device (7) that utilizes liquid, aqueous (26) work, described cleaning device produces at least one liquid beam in order to described heat exchanger (5,39) is cleaned, an and control device (8), wherein, described cleaning device (7) has one with respect to heat exchanger (5, 39) fixing arrangement and at least one mobile (10) in position, described arrangement has at least one nozzle for generation of described at least one liquid beam (13), described mobile allows the direction of described at least one liquid beam and/or intensity to change, it is characterized in that, described cleaning device (7) changes direction and/or intensity and the described heat exchanger (5 of described at least one liquid beam at its run duration, 39) be loaded described at least one liquid beam.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010029892.1 | 2010-06-09 | ||
| DE102010029892A DE102010029892A1 (en) | 2010-06-09 | 2010-06-09 | Condensation dryer with integrated heat exchanger cleaning and process for its operation |
| PCT/EP2011/058533 WO2011154252A1 (en) | 2010-06-09 | 2011-05-25 | Condensation dryer with integrated heat-exchanger cleaning, and method for operating the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103097602A true CN103097602A (en) | 2013-05-08 |
Family
ID=44119242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800284417A Pending CN103097602A (en) | 2010-06-09 | 2011-05-25 | Condensation dryer with integrated heat-exchanger cleaning, and method for operating the same |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2580386A1 (en) |
| CN (1) | CN103097602A (en) |
| DE (1) | DE102010029892A1 (en) |
| WO (1) | WO2011154252A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017205A (en) * | 2016-06-30 | 2016-10-12 | 无锡小天鹅股份有限公司 | Cleaning device of heat exchanger for clothes dryer and clothes dryer with cleaning device |
| CN106017204A (en) * | 2016-06-30 | 2016-10-12 | 无锡小天鹅股份有限公司 | Cleaning device for heat exchanger for clothes dryer and clothes dryer with cleaning device |
| CN107460704A (en) * | 2016-06-03 | 2017-12-12 | 无锡小天鹅股份有限公司 | Heat exchanger cleaning sprayer and there is its heat pump clothes dryer cleaning device |
| CN111163674A (en) * | 2017-09-29 | 2020-05-15 | 迈科清洗科技集团公司 | Cleaning device and method for cleaning an article to be cleaned |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2628843B1 (en) * | 2012-02-20 | 2020-04-08 | Electrolux Home Products Corporation N.V. | Laundry treatment apparatus with heat exchanger cleaning |
| EP2628846B1 (en) * | 2012-02-20 | 2018-11-14 | Electrolux Home Products Corporation N.V. | Laundry treatment apparatus with heat exchanger cleaning |
| US20130255095A1 (en) * | 2012-03-27 | 2013-10-03 | Bsh Bosch Und Siemens Hausgerate Gmbh | Clothes treatment appliance with condenser and cleaning device |
| DE102012209826A1 (en) * | 2012-06-12 | 2013-12-12 | BSH Bosch und Siemens Hausgeräte GmbH | Condensation dryer with a pump and method for its operation |
| EP2746455A1 (en) * | 2012-12-20 | 2014-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Process for operating a washer dryer with a heat pump, and a suitable washer dryer |
| DE102016200845A1 (en) * | 2016-01-21 | 2017-07-27 | BSH Hausgeräte GmbH | Method for operating a dryer with a heat pump and flushing a heat exchanger and dryer suitable for this purpose |
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| CN107460704A (en) * | 2016-06-03 | 2017-12-12 | 无锡小天鹅股份有限公司 | Heat exchanger cleaning sprayer and there is its heat pump clothes dryer cleaning device |
| CN106017205A (en) * | 2016-06-30 | 2016-10-12 | 无锡小天鹅股份有限公司 | Cleaning device of heat exchanger for clothes dryer and clothes dryer with cleaning device |
| CN106017204A (en) * | 2016-06-30 | 2016-10-12 | 无锡小天鹅股份有限公司 | Cleaning device for heat exchanger for clothes dryer and clothes dryer with cleaning device |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102010029892A1 (en) | 2011-12-15 |
| EP2580386A1 (en) | 2013-04-17 |
| WO2011154252A1 (en) | 2011-12-15 |
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Application publication date: 20130508 |