WO2023060689A1 - Dispositif de séparation de vapeur d'eau et machine de lavage de tapis associée - Google Patents

Dispositif de séparation de vapeur d'eau et machine de lavage de tapis associée Download PDF

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Publication number
WO2023060689A1
WO2023060689A1 PCT/CN2021/131335 CN2021131335W WO2023060689A1 WO 2023060689 A1 WO2023060689 A1 WO 2023060689A1 CN 2021131335 W CN2021131335 W CN 2021131335W WO 2023060689 A1 WO2023060689 A1 WO 2023060689A1
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WO
WIPO (PCT)
Prior art keywords
cylinder
shaft
guide
water vapor
left end
Prior art date
Application number
PCT/CN2021/131335
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English (en)
Chinese (zh)
Inventor
宁建强
高铭
Original Assignee
广东维尔科技股份有限公司
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Application filed by 广东维尔科技股份有限公司 filed Critical 广东维尔科技股份有限公司
Publication of WO2023060689A1 publication Critical patent/WO2023060689A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/32—Carpet-sweepers
    • A47L11/33—Carpet-sweepers having means for storing dirt
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/266—Drying gases or vapours by filtration

Definitions

  • the invention relates to the technical field of carpet washing machines, in particular to a water vapor separation device and a carpet washing machine thereof.
  • the structure of the sewage tank of the hand-held floor washing machine on the market does not have the function of the valve to lock the water. It just prints the scale mark of the water level outside the sewage tank. When the user uses too much water, it will soon be The pump was full and passed the warning line, and when the water level reached the warning line, there was no alarm sound. This just causes the user to be unable to judge and continue to clean the work of the ground. When the water level exceeds the warning line of the sewage tank, as long as the machine tilts, the water in the sewage tank will leak out.
  • the object of the present invention is to provide a water vapor separation device to solve the technical problem that the water vapor separation effect of the water vapor separation device in the prior art is poor.
  • the technical solution of the present invention provides a water vapor separation device, which includes an outer cylinder body, and the left and right ends of the outer cylinder body are respectively provided with a first water inlet and a first exhaust port.
  • the interior of the outer cylinder is provided with PVC filters, medium density sponges, and middle cylinders distributed in sequence from left to right, the left end of the middle cylinder is set as a closed end, and the right end of the middle cylinder is set as an opening;
  • the right end of the outer cylinder body is provided with an inner cylinder body, the left end of the inner cylinder body is set as an opening, the inner cylinder body is inserted into the inside of the middle cylinder body to the left, and the first exhaust
  • the outlet is located at the right end of the inner cylinder, and the first exhaust port is connected to the air extraction device outside the outer cylinder;
  • the bottom of the outer cylinder is provided with several drainage holes, and the drainage holes Located on the left side of the PVC filter.
  • the axial directions of the outer cylinder, the PVC filter, the medium density sponge, the middle cylinder, and the inner cylinder extend along the left and right directions, and the outer cylinder and the The PVC filter, the medium-density sponge, the middle cylinder, and the inner cylinder are arranged coaxially.
  • the side wall of the middle cylinder and the side wall of the outer cylinder are connected and fixed through several connecting plates, and the several connecting plates are sequentially distributed along the circumference of the middle cylinder , there is an included angle between the extending direction of the connecting plate and the axial direction of the middle cylinder.
  • the left end of the middle cylinder is in close contact with the right end of the medium density sponge
  • the left end of the middle cylinder is provided with a first shaft fixing cover
  • the left end of the first shaft fixing cover is provided with a guide cylinder
  • the guide cylinder passes through the medium-density sponge and the middle part of the PVC filter in sequence to the left
  • the left end of the guide cylinder is provided with a guide pipe extending in the left and right directions
  • the right end of the guide cylinder is provided with It is an opening
  • the inside of the guide pipe is provided with a first valve top shaft that can slide left and right, and the left end of the first valve top shaft passes through the guide pipe to the left and is connected with the first silica gel part.
  • the right end of the top shaft of the valve passes through the guide pipe to the right and is connected and fixed to the left end of the first shaft fixing cover through the first spring, and the first silicone part can move to the left under the elastic action of the first spring. Block the first water inlet.
  • the width of the first silica gel part is larger than the inner diameter of the guide pipe
  • the inside of the top shaft of the first valve is provided with a first installation hole penetrating to the right
  • the left end of the first shaft fixing cover is provided with The first fixed shaft;
  • the inner diameter of the first mounting hole is greater than the outer diameter of the first fixed shaft, the first fixed shaft can be inserted into the first mounting hole to the left, and the left and right sides of the first spring
  • the two ends are respectively fixed on the inner wall of the first installation hole and the outer wall of the first fixed shaft.
  • the inside of the inner cylinder body is provided with annular steps and guide columns distributed sequentially from left to right, the middle part of the annular steps is provided with a valve port penetrating in the left and right direction, and the middle part of the guide column is provided with A guide hole penetrating in the left and right direction, the edge of the guide column is provided with an air guide hole penetrating in the left and right direction;
  • the inside of the guide hole is provided with a second valve top shaft that can slide left and right, and the top shaft of the second valve
  • the left end passes through the guide hole to the left and is connected to the second silicone part;
  • the right end of the inner cylinder is provided with a second shaft fixing cover, and the first exhaust port is located on the second shaft fixing cover.
  • the right end of the top shaft of the second valve passes through the guide hole to the right and is connected and fixed to the left end of the second shaft fixing cover through a second spring. Block the valve port to the left under the action.
  • the width of the second silica gel part is greater than the inner diameter of the guide hole
  • the inside of the top shaft of the second valve is provided with a second installation hole penetrating to the right
  • the left end of the second shaft fixing cover is provided with a The second fixed shaft;
  • the inner diameter of the second mounting hole is greater than the outer diameter of the second fixed shaft, the second fixed shaft can be inserted into the second mounting hole to the left, and the left and right sides of the second spring
  • the two ends are respectively fixed to the inner wall of the second mounting hole and the outer wall of the second fixed shaft.
  • the present invention also provides a carpet washing machine, which includes a sewage tank and the water vapor separation device described in any one of the above technical solutions.
  • the left and right ends of the sewage tank are respectively provided with a second water inlet, a second exhaust port;
  • the outer cylinder is installed inside the sewage tank, the first water inlet is connected to the second water inlet, and the first exhaust port is connected to the second exhaust port;
  • the The air extraction device is a dry and wet fan, and the dry and wet fan is installed at the right end of the sewage tank.
  • the sewage tank is translucent, and a circuit board is provided outside the sewage tank, and a water level sensor switch and a dump switch are provided on the circuit board, and the water level sensor switch can visually detect the waste water in the sewage tank.
  • the water level height, the dump switch can sense the inclination angle of the waste water tank; the water level sensor switch and the dump switch are both electrically connected to the wet and dry fan.
  • the structural design of the present invention is reasonable, (1) through the inside of the outer cylinder body, there are PVC filter discs and medium-density filters distributed sequentially from left to right. Sponge, the middle cylinder, so that most of the water can be blocked by the PCV filter and the medium density sponge, and the gas can pass through the PVC filter and the medium density sponge to the right; (2) through the middle cylinder
  • the left end is set as a closed end
  • the right end of the middle cylinder is set as an opening
  • the right end of the outer cylinder is provided with an inner cylinder
  • the left end of the inner cylinder is set as an opening
  • the inner cylinder is inserted into the middle cylinder to the left inside, so that the left end opening of the inner cylinder is hidden inside the middle cylinder, and because the water will have a great inertia when it moves to the right under the action of suction, this design can prevent the water flow from passing through The medium-density sponge pours directly into the
  • the opening enters the inside of the inner cylinder; (3) the first exhaust port is located at the right end of the inner cylinder, and the first exhaust port is connected with the suction device outside the outer cylinder, so that the inner cylinder The gas can be extracted from the first exhaust port under the suction of the air extraction device; (4) There are several drainage holes through the bottom of the outer cylinder, and the drainage holes are located on the left side of the PVC filter, so that the gas can be quickly drained.
  • the present invention uses the cooperation of the PCV filter sheet, the medium density sponge and the middle cylinder body and the inner cylinder body, so that water can be drained from the The drain hole is discharged, while the gas can be drawn out from the first exhaust port, thereby realizing the separation of water and gas, thereby greatly improving the water vapor separation effect.
  • Fig. 1 is the three-dimensional cross-sectional structural representation of the water vapor separation device of the present invention when the valve is closed;
  • Fig. 2 is the sectional structure schematic diagram of the rear view of the water vapor separation device of the present invention when the valve is closed;
  • Fig. 3 is the sectional structure schematic diagram of the rear view of the water vapor separation device of the present invention when the valve is opened;
  • Fig. 4 is a partial three-dimensional cross-sectional structural schematic diagram of the carpet washing machine of the present invention when the valve is closed;
  • Fig. 5 is a three-dimensional schematic diagram of the carpet washing machine of the present invention.
  • the observer faces the accompanying drawing 1 to observe, the left side of the observer is defined as left, the right side of the observer is defined as right, the front of the observer is defined as front, and the observer's left side is defined as the front.
  • this embodiment provides a water-steam separation device, including an outer cylinder 1.
  • the outer cylinder is mainly used as the main support of the entire water-steam separation device, and all parts are carried on this main support. , in order to carry out effective work and play a role.
  • the left and right ends of the outer cylinder 1 are respectively provided with a first water inlet 101 and a first exhaust port 102, and the inside of the outer cylinder 1 is provided with a PVC filter 2 and a medium density sponge 3 distributed from left to right.
  • PVC filter as the first filter layer can preliminarily filter the inhaled water and steam mixture, so that most of the water can be blocked on the left side of the PVC filter by using the small pores of the PVC filter ;
  • the medium density sponge is used as the second filter layer to filter a small amount of water and steam mixture entering this layer, so as to block the water from being transported forward, but in fact there will still be part of the water and steam mixture passing through the medium.
  • the density of the sponge flows to the right, so this part of the water also needs to be removed.
  • the left end of the middle cylinder 4 is set as a closed end, and the right end of the middle cylinder 4 is set as an opening; the right end of the outer cylinder 1 is provided with an inner cylinder 5, and the left end of the inner cylinder 5 is set as an opening, and the inner cylinder
  • the body 5 is inserted into the inside of the middle cylinder 4 to the left, the first exhaust port 102 is located at the right end of the inner cylinder 5, and the first exhaust port 102 is connected with the air extraction device outside the outer cylinder 1; the outer cylinder
  • the bottom of 1 is provided with several drainage holes 103, and the drainage holes 103 are located on the left side of the PVC filter sheet 2.
  • the reason for such setting is that the left side of the PVC filter sheet has most of the blocked water, so the drainage holes are arranged on the PVC filter sheet
  • the left side of the PVC filter can realize rapid drainage, while the water on the right side of the PVC filter can flow to the left after the water on the left side of the PVC filter is drained, and then be discharged from the drain hole.
  • the left end of the middle cylinder is set as a closed end
  • the right end of the middle cylinder is set as an opening
  • the right end of the outer cylinder is provided with
  • the inner cylinder the left end of the inner cylinder is set as an opening
  • the inner cylinder is inserted into the inside of the middle cylinder to the left, so that the left end opening of the inner cylinder is hidden inside the middle cylinder, and due to When the water moves to the right under the action of suction, there will be a lot of inertia, so this design can prevent the water flow from directly pouring into the inner cylinder after passing through the medium density sponge, so that the water flow is in contact with the outer cylinder.
  • the first exhaust port located in the inner cylinder At the right end of the body, the first exhaust port is connected to the air extraction device outside the outer cylinder, so that the gas in the inner cylinder can be extracted from the first exhaust port under the suction of the air extraction device; (4) through the outer cylinder There are several drainage holes at the bottom of the cylinder, and the drainage holes are located on the left side of the PVC filter, so that most of the water in the outer cylinder can be quickly discharged through the drainage holes; (5) From the above analysis, In the present invention, through the cooperation of the PCV filter, the medium-density sponge, the middle cylinder and the inner cylinder, the water can be discharged from the drainage hole, and the gas can be drawn out from the first exhaust port, thereby realizing the separation of water and gas. Separation, thus greatly improving the water
  • the axial directions of the outer cylinder 1, the PVC filter 2, the medium density sponge 3, the middle cylinder 4, and the inner cylinder 5 extend along the left and right directions, and the outer cylinder 1 and the PVC filter 2, medium density
  • the sponge 3, the middle cylinder body 4, and the inner cylinder body 5 are coaxially arranged, and the function: the coaxial arrangement can make the force distribution among various positions in the outer cylinder body more balanced.
  • this distance can provide space for temporary storage of water, and on the other hand, the gas can quickly flow to the right. Thereby improving work efficiency.
  • this distance allows the gas to quickly enter the inside of the middle cylinder from the right opening of the middle cylinder, thereby improving work efficiency.
  • the high-density sponge 6 can further transport gas The moisture in the filter is dried, thereby further improving the water vapor separation effect.
  • the side walls of the middle cylinder 4 and the side walls of the outer cylinder 1 are connected and fixed through several connecting plates 7, and the several connecting plates 7 are distributed sequentially along the circumferential direction of the middle cylinder 4, and the connecting plates There is an included angle between the extension direction of 7 and the axial direction of the middle cylinder body 4.
  • the left end of the middle cylinder 4 is in close contact with the right end of the medium-density sponge 3, the left end of the middle cylinder 4 is provided with a first shaft fixing cover 401, and the left end of the first shaft fixing cover 401 is provided with a guide cylinder 8 to guide
  • the cylinder body 8 passes through the middle part of the medium density sponge 3 and the PVC filter disc 2 successively to the left, the left end of the guide cylinder body 8 is provided with a guide pipe 801 extending in the left and right direction, and the right end of the guide cylinder body 8 is set as an opening; the guide pipe 801 There is a first valve top shaft 9 that can slide left and right.
  • the left end of the first valve top shaft 9 passes through the guide pipe 801 to the left and connects with the first silica gel part 10.
  • the right end of the first valve top shaft 9 passes rightward. After going out of the guide pipe 801, it is connected and fixed with the left end of the first shaft fixing cover 401 through the first spring 11.
  • the first silicone part 10 can block the first water inlet 101 to the left under the elastic action of the first spring 11.
  • the suction device in When the suction device generates suction, the force generated by the suction overcomes the elastic force of the first spring, so that the first silica gel part is separated from the first water inlet, so that the sewage can be sucked into the outer cylinder, and the pumping
  • the first silica gel part blocks the first water inlet to the left under the elastic force of the first spring, thereby preventing water leakage from the first water inlet when it is toppled over or the like.
  • the width of the first silicone part 10 is larger than the inner diameter of the guide pipe 801
  • the first valve top shaft 9 is provided with a first mounting hole 901 penetrating to the right
  • the left end of the first shaft fixing cover 401 is provided with a first fixing hole.
  • the inner diameter of the first mounting hole 901 is greater than the outer diameter of the first fixed shaft 402, the first fixed shaft 402 can be inserted into the inside of the first mounting hole 901 to the left, and the left and right ends of the first spring 11 are respectively fixed on the first
  • the inner wall of the mounting hole 901 and the outer wall of the first fixed shaft 402 have functions: when the suction device generates suction, the force generated by the suction overcomes the elastic force of the first spring, so the top shaft of the first valve moves to the right, Then the first spring is elastically compressed, and the first fixing shaft is inserted leftward into the first installation hole, thereby improving the compactness of the structure while ensuring that the first spring has a sufficient length.
  • the interior of the inner cylinder 5 is provided with annular steps 12 and guide posts 13 distributed sequentially from left to right.
  • the guide hole 1301 penetrating in the left and right direction, the edge of the guide column 13 is provided with the air guide hole 1302 penetrating in the left and right direction;
  • the inside of the guide hole 1301 is provided with a second valve top shaft 14 which can slide left and right, and the second valve top shaft 14
  • the left end passes through the guide hole 1301 to the left and is connected with the second silica gel part 15;
  • the right end of the inner cylinder body 5 is provided with a second shaft fixing cover 501, and the first exhaust port 102 is located on the second shaft fixing cover 501.
  • Valve port 1201 function: when the suction device generates suction, the force generated by the suction overcomes the elastic force of the second spring, so that the second silicone part is separated from the valve port, so that the gas can flow from the valve port, guide The air hole and the first exhaust port are discharged, and when the suction device does not generate suction, the second silicone part blocks the valve port to the left under the elastic action of the second spring, so as to prevent the first row from being dumped. Air leaks outward.
  • the width of the second silicone part 15 is greater than the inner diameter of the guide hole 1301
  • the second valve top shaft 14 is provided with a second installation hole 1401 penetrating to the right
  • the left end of the second shaft fixing cover 501 is provided with a second fixing hole.
  • the inner diameter of the second mounting hole 1401 is greater than the outer diameter of the second fixed shaft 502, the second fixed shaft 502 can be inserted into the second mounting hole 1401 to the left, and the left and right ends of the second spring 16 are respectively fixed with the second
  • the inner wall of the mounting hole 1401 and the outer wall of the second fixed shaft 502 have functions: when the suction device generates suction, the force generated by the suction overcomes the elastic force of the second spring, so the top shaft of the second valve moves to the right, Then the second spring is elastically compressed, and the second fixing shaft is inserted leftward into the second mounting hole, thereby improving the compactness of the structure while ensuring that the second spring has sufficient length.
  • this embodiment also provides a carpet washing machine, including a sewage tank 17, and a water vapor separation device according to any one of the above-mentioned technical solutions.
  • the left and right ends of the sewage tank 17 are respectively provided with a second water inlet 1701, The second exhaust port 1702; the outer cylinder body 1 is installed inside the sewage tank 17, the first water inlet 101 is connected to the second water inlet 1701, and the first exhaust port 102 is connected to the second exhaust port 1702.
  • the air extraction device is a dry and wet blower, and the dry and wet blower is installed on the right end of the sewage tank 17.
  • the effect: the dry and wet blower can be installed on the sewage tank very conveniently, and is also convenient to carry, thus improving the portability of the carpet washing machine. Since the wet and dry air blower is an existing technology, it will not be described in detail here.
  • the sewage tank 17 is translucent, and a circuit board is also provided outside the sewage tank 17.
  • the circuit board is provided with a water level sensor switch and a dump switch.
  • the water level sensor switch can visually detect the water level in the sewage tank 17.
  • the dump switch can The inclination angle of the sewage tank 17 is sensed; the water level sensing switch and the dumping switch are electrically connected with the wet and dry fan. Function: When the water level sensor switch visually detects that the water level reaches the warning scale, first the water level sensor switch will control the dry and wet fan to cut off the power, so that the negative pressure in the outer cylinder will be reduced.
  • the first silica gel part and the second silica gel part bear against the first water inlet and the valve port to the left, so that the water in the waste water tank is locked inside.
  • the water level sensor switch fails (that is, the water level is below the warning line), as long as the carpet washing machine tilts to a certain angle, it will also control the dry and wet fan to cut off the power, so that the outer cylinder body negative pressure reduction.
  • the technical achievements of the present invention are transformed into practical applications, such as being applied to a hand-held carpet washing machine, it will resolve the troubles of users during use, solve the main pain points of the hand-held carpet washing machine, make users feel good experience, and increase life. Do chores for fun.
  • the carpet washing machine also includes a main casing 18, and the left and right ends of the main casing 18 are respectively provided with a left casing 19 and a right casing 20, wherein the sewage tank 17 is installed inside the main casing 18, and the sewage
  • the second water inlet 1701 of the box 17 communicates with the inside of the left casing 19, and the left end of the left casing 19 is provided with an auxiliary water absorbing device 23, so that the moisture on the carpet can be sucked in order from the auxiliary water absorbing device 23 and the left casing 19
  • the upper right end of the main casing 18 is also provided with a control button 21, and the control button 21 passes through the main casing 18 inwardly and is installed on the circuit board
  • the top of the right casing 20 is provided with a handle bar 22, and the handle bar 22 is convenient for people to carry out the hand-held carpet washing machine.
  • the application of the water vapor separation device is not limited to the carpet washing machine, it can also be a floor washing machine, and it can be applied to various dry and wet sea washing products.
  • the position of the water vapor separation device in the product can be adjusted according to the shape of the product.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Dispositif de séparation de vapeur d'eau et machine de lavage de tapis. Le dispositif de séparation de vapeur d'eau comprend un cylindre externe (1), les extrémités gauche et droite du cylindre externe (1) étant dotées d'une première entrée d'eau (101) et d'un premier orifice d'évacuation (102), respectivement ; un disque filtrant en PVC (2), une éponge à densité moyenne (3) et un cylindre intermédiaire (4) sont répartis consécutivement de gauche à droite dans le cylindre externe (1) ; une extrémité gauche du cylindre intermédiaire (4) est conçue pour être une extrémité fermée, et une extrémité droite du cylindre intermédiaire (4) est conçue pour être ouverte ; une extrémité droite du cylindre externe (1) est pourvue d'un cylindre interne (5), une extrémité gauche du cylindre interne (5) est conçue pour être ouverte, le cylindre interne (5) est inséré dans le cylindre intermédiaire (4) vers la gauche, le premier orifice d'échappement (102) est situé sur une extrémité droite du cylindre interne (5), et le premier orifice d'évacuation (102) est raccordé à un extracteur d'air qui est situé à l'extérieur du cylindre externe (1) ; et la partie inférieure du cylindre externe (1) est pourvue d'une pluralité de trous de drainage (103), et les trous de drainage (103) sont situés sur la gauche du disque filtrant en PVC (2). Le dispositif de séparation de vapeur d'eau présente une conception structurale raisonnable, un effet de séparation de vapeur d'eau est amélioré et une fuite d'eau est évitée lorsque le dispositif s'incline.
PCT/CN2021/131335 2021-10-12 2021-11-17 Dispositif de séparation de vapeur d'eau et machine de lavage de tapis associée WO2023060689A1 (fr)

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CN202111186789.0 2021-10-12
CN202111186789.0A CN113975920B (zh) 2021-10-12 2021-10-12 一种水汽分离装置及其洗地毯机

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WO2023060689A1 true WO2023060689A1 (fr) 2023-04-20

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