CN112726126A - Scale-inhibiting washing drum for clothes treatment device, preparation method and washing machine - Google Patents
Scale-inhibiting washing drum for clothes treatment device, preparation method and washing machine Download PDFInfo
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- CN112726126A CN112726126A CN202011552009.5A CN202011552009A CN112726126A CN 112726126 A CN112726126 A CN 112726126A CN 202011552009 A CN202011552009 A CN 202011552009A CN 112726126 A CN112726126 A CN 112726126A
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/227—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of containers, cans or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/007—Arrangements of water softeners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention provides a scale-inhibiting washing drum for a clothes treatment device, which comprises a drum body rotationally arranged in the clothes treatment device, wherein the drum body is provided with a containing cavity for containing clothes; one side of the cavity is opened for putting clothes; the surface of the cylinder body is provided with a scale inhibiting part which is of a layered structure, so that the cylinder body forms a cylinder body surface structure containing scale inhibitor molecules; the water contacts the barrel structure containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the level of scale ions in the water stream. The invention also provides a preparation method of the scale-inhibiting washing drum and a washing machine. The scale inhibiting part is arranged on the surface of the cylinder body, and the water flow contacts the scale inhibiting part on the surface of the cylinder body and reacts with the scale inhibitor in the scale inhibiting part to reduce the content of scale ions in the water flow, thereby reducing the generation of scale in the flowing process of the water flow contacting the scale inhibiting part in the clothes treatment device and prolonging the service life of the clothes treatment device.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a scale-inhibiting washing drum for a clothes treatment device, a preparation method and a washing machine.
Background
In daily life, many clothes treating apparatuses use water, and occasionally or frequently, the water is heated first and then the subsequent operation is performed, such as a washing machine. And the water can gradually precipitate calcium ions and magnesium ions in the water in the heating process to form scale taking calcium carbonate and magnesium hydroxide as main components. The washing drum of the clothes treatment device is used for cleaning, dehydrating and the like clothes, water in the washing drum scales due to heating and deposits on the surface of the washing drum to cause pollution, and water in the washing drum is easy to accumulate scale on the surfaces of other parts of the clothes treatment device in the discharge process, so that the cleaning difficulty and cost are increased, and the service life of the clothes treatment device is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a scale inhibiting washing drum for a clothes treatment device, wherein a scale inhibiting part is arranged on the surface of the drum body, and the generation of scale in the flowing process of water flow contacting with the scale inhibiting part in the clothes treatment device is reduced.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The invention provides a scale-inhibiting washing drum for a clothes treatment device, which comprises a drum body rotationally arranged in the clothes treatment device, wherein the drum body is provided with a containing cavity for containing clothes; one side of the cavity is opened for putting clothes; wherein the content of the first and second substances,
the surface of the cylinder body is provided with a scale inhibiting part which is of a layered structure, so that the cylinder body forms a cylinder body surface structure containing scale inhibitor molecules;
the water contacts the barrel structure containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the level of scale ions in the water stream.
Preferably, the scale inhibitor comprises a first scale inhibitor part arranged on the inner wall of the cylinder body, so that the cylinder body forms an inner wall structure containing scale inhibitor molecules to reduce the content of scale ions in the water flow after entering the cavity.
Preferably, the bottom of the inner wall of the cylinder body is provided with a first scale inhibiting part.
Preferably, the scale inhibitor includes a second scale inhibitor disposed on an outer wall of the drum such that the drum forms an outer wall structure containing scale inhibitor molecules to reduce a content of scale-forming ions in the water flow in a water flow passage formed by the drum and an outer tub of the laundry treating apparatus.
Preferably, the second scale inhibiting portion is provided on a side of the cylinder facing the outer tub.
Preferably, the number of scale inhibiting portions is at least two.
Preferably, any longitudinal section of the cylinder wall of the cylinder body is attached with a scale inhibiting part, so that the lowest part of the cylinder wall is provided with scale inhibiting molecules for the reaction of the scale inhibitor.
Preferably, the scale inhibiting parts are uniformly distributed along the rotation direction of the cylinder so that the center of gravity is not changed when the cylinder rotates.
Preferably, the thickness of the scale inhibition part is 10-200 μm.
The second purpose of the invention is to provide a method for preparing a scale inhibition washing drum, which comprises the following steps:
s1, dissolving the film forming agent in the solvent, adding the scale inhibitor, and uniformly mixing to obtain the scale inhibiting coating;
s2, uniformly coating the scale inhibiting coating prepared in the step S1 on the surface of the cylinder body, drying and curing to prepare the scale inhibiting washing cylinder for the clothes treatment device as claimed in claim 1.
Preferably, in the step S1, the weight parts of the film forming agent and the solvent are respectively 60-70 and 20-35; the scale inhibitor accounts for 1-10% of the weight of the scale inhibiting coating.
Preferably, the step S2 further includes cleaning the surface of the barrel body before coating.
Preferably, in step S2, spraying the scale inhibiting paint on the surface of the cylinder body by using a spray gun; the spraying distance is 15-35 cm; the gun moving speed is 2-3 cm/s; the paint yield of the scale inhibiting coating is 35-350 ml/min.
A third object of the present invention is to provide a laundry machine comprising a dirt-restraining washing drum for a laundry treating device as described above.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a dirt-inhibiting washing drum for a clothes treatment device, which comprises a drum body for containing clothes, wherein a dirt-inhibiting part is arranged on the surface of the drum body, and water flow contacts the dirt-inhibiting part on the surface of the drum body and reacts with a dirt-inhibiting agent in the dirt-inhibiting part to reduce the content of dirt ions in the water flow, so that the generation of water scales in the flowing process of the water flow contacting the dirt-inhibiting part in the clothes treatment device is reduced, for example, the probability of forming the water scales on the surface of the drum body is reduced, the clothes contained in the drum body or the drum body are prevented from being polluted, namely, the pollution of the water flow to the clothes treatment device is reduced, and the service life; in addition, the water after scale inhibition contacts with the detergent, so that the probability that the detergent is consumed due to the fact that scale forming ions in the water react with the detergent to generate insoluble matters is reduced, and the washing effect of the detergent is not influenced.
In a preferred scheme, the inner wall of the cylinder body is provided with a first scale inhibiting part, and the outer wall of the cylinder body is provided with a second scale inhibiting part; when the clothes processing device is a drum type, the second scale inhibiting part is used for reducing the content of scale formation ions in water flow entering a water flow channel between the drum body and the outer drum, the first scale inhibiting part is used for reducing the content of scale formation ions in the water flow entering the containing cavity of the drum body, and multi-stage multi-position scale inhibition is carried out so as to further reduce the probability of scale formation.
The foregoing description is only an overview of the technical solutions of the present invention, and some embodiments are described in detail below in order to make the technical solutions of the present invention more clearly understood and to implement the technical solutions according to the content of the description. Specific embodiments of the present invention are given in detail by the following examples.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic perspective view of a cartridge according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a flow chart of a method of making the scale inhibiting inner barrel of the present invention.
In the figure: 100. a barrel; 10. a cavity; 20. and a through hole.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example 1
The invention provides a dirt-inhibiting washing drum for a clothes treatment device, which comprises a drum body 100 rotationally arranged in the clothes treatment device, wherein the drum body 100 is provided with a cavity 10 for accommodating clothes; one side of the cavity 10 is open for putting clothes; clothes to be treated are put into the cavity 10, water flow is introduced into the cavity 10, and the drum 100 rotates to treat the clothes in the cavity 10, such as washing, rinsing, dewatering and other clothes treatment; wherein the content of the first and second substances,
a scale inhibiting part (not shown in the figure) is arranged on the surface of the cylinder body 100, and the scale inhibiting part is of a layered structure, so that the cylinder body 100 forms a cylinder body surface structure containing scale inhibitor molecules;
the water contacts the barrel structure of the barrel 100 containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the level of scale ions in the water stream. The scaling ions refer to metal ions which are easy to form scale after being heated, and include but are not limited to calcium ions and magnesium ions which are easy to scale. The principle of scale inhibitor for inhibiting water scale includes chelation, adsorption and dispersion. When the scale inhibitor is used for chelating, the scale inhibitor is complexed with metal ions which are easy to scale, such as calcium ions, magnesium ions and the like in water to form stable water-soluble chelate, reactants are dissolved in the water, the concentration of the free metal ions which are easy to scale, such as calcium ions, magnesium ions and the like in the water is reduced, and the amount of precipitated calcium carbonate, magnesium carbonate and other precipitates is further reduced; when the scale inhibitor plays a role in adsorption and dispersion, the scale inhibitor is an anionic organic compound, adsorbs ions which are easy to scale, such as calcium ions, magnesium ions and the like in water or scale molecules, such as calcium carbonate molecules, magnesium carbonate molecules and the like formed in water, and then stably disperses in the water; and the probability of scale deposit such as calcium carbonate or magnesium carbonate formed by heating water is reduced by the scale inhibitor. It will be appreciated that magnesium carbonate is a sparingly soluble substance and that heating tends to react with water to form a more stable magnesium hydroxide precipitate, with a reduced magnesium carbonate content meaning a reduced magnesium hydroxide precipitate.
Further, the barrel 100 is a plastic or metal member. When the cylinder 100 is a plastic part, the curing temperature of the scale inhibiting coating for forming the scale inhibiting part should not be too high so as to prevent the plastic cylinder 100 from deforming. When the cylinder 100 is a metal part, the requirement on the curing temperature of the scale inhibiting coating is reduced due to the higher heat-resistant temperature of the metal part. Generally, the washing cylinder 100 is a stainless steel member, which is resistant to high temperature and has a wide range of applicable scale-inhibiting coatings.
In one embodiment, the laundry treating apparatus is a pulsator type, and the drum 100 is connected with a motor to rotate. Since only the inner wall of the cylinder 100 is contacted with the water flow, in order to save cost, the inner wall of the cylinder 100 is provided with a first scale inhibiting part to form a cylinder body inner surface structure of the cylinder 100 containing scale inhibitor molecules, so as to inhibit scale of the water flow entering the cavity 10 of the cylinder 100 and reduce the content of scale forming ions in the water flow in the cavity 10. Further, a first scale inhibiting part is arranged at the bottom of the inner wall of the cylinder 100; specifically, since the bottom of the drum 100 of the pulsator type laundry treating device is at the lower side, the water entering into the drum 100 covers the bottom of the inner wall of the drum 100, and the first scale inhibiting portion covers the entire bottom surface of the inner wall of the drum 100 to increase the area of the first scale inhibiting portion contacted by the water current in the drum 100. In another embodiment, the laundry treating apparatus is a drum type, the drum 100 is rotatably disposed in the outer drum, and the first scale inhibiting portion is disposed on the inner wall of the drum 100 to inhibit the scale of the water flowing into the cavity 10 of the drum 100, so as to reduce the content of scale-forming ions in the water flowing in the cavity 10. That is, the scale inhibiting part includes a first scale inhibiting part disposed on the inner wall of the cylinder 100, so that the cylinder 100 forms an inner wall structure containing scale inhibitor molecules to reduce the content of scale ions in the water flow after entering the cavity 10. Further, a first scale inhibiting part is arranged at the bottom of the inner wall of the cylinder 100; specifically, since the bottom of the drum 100 of the drum-type laundry treating apparatus is at the side, the first scale inhibiting portion disposed at the bottom of the inner wall of the drum 100 is annular and close to the bottom edge of the inner wall of the drum 100, and when the drum 100 rotates, the water in the drum 100 contacts the bottom of the inner wall of the drum 100 at the position close to the edge, thereby saving the amount of the scale inhibiting paint and ensuring the scale inhibiting effect.
Further, when the laundry treating apparatus is of a pulsator type, the scale inhibiting portion is disposed on the inner wall of the tub 100, and water entering the tub 100 can contact the entire bottom surface of the inner wall of the tub 100 or a large area of the bottom surface due to the pulsator type laundry treating apparatus, and the scale inhibiting portion covers the entire bottom surface of the inner wall of the tub 100. Furthermore, the scale inhibiting parts are also distributed on the periphery of the inner wall of the cylinder 100 close to the bottom, so that the scale inhibiting effect of the scale inhibiting parts on the inner wall of the cylinder 100 on water flow in the cylinder 100 is ensured while the using amount of the scale inhibiting paint is saved. When the clothes treatment device is a drum type, when the water consumption for treating clothes in the drum body 100 is not much, the water flow contacts the lower part of the surface of the bottom of the inner wall of the drum body 100, and then the scale inhibiting part is arranged on the circumferential side of the inner wall of the drum body 100 or the scale inhibiting part is arranged on the circumferential side surface of the inner wall of the drum body and is also arranged at the position close to the edge of the bottom of the inner wall of the drum body 100, so that the area of the scale inhibiting part contacted by the water flow.
In one embodiment, the laundry treating apparatus is a drum type, and the water flow enters the water flow channel formed between the drum 100 and the outer drum of the laundry treating apparatus and then is guided into the cavity 10 of the drum 100. The scale inhibiting part includes a second scale inhibiting part disposed on the outer wall of the drum 100 so that the drum 100 forms an outer wall structure containing scale inhibitor molecules, and the water flow contacts the second scale inhibiting part on the outer wall of the drum 100 after entering the water flow passage between the drum 100 and the outer tub and reacts with the scale inhibitor molecules in the second scale inhibiting part to reduce the content of scale forming ions in the water flow passage formed by the drum 100 and the outer tub of the laundry treating apparatus.
In one embodiment, the second scale inhibiting portion is disposed on the side of the cylinder 100 facing the outer cylinder, i.e. the second scale inhibiting portion is disposed on the peripheral side surface of the outer wall of the cylinder 100, and the bottom of the outer wall of the cylinder 100 is not provided with the scale inhibiting portion, so as to save the amount of the scale inhibiting paint. The water in the water flow passage between the cylinder 100 and the outer cylinder usually contacts only the peripheral outer wall of the cylinder 100, and does not contact the bottom and top outer walls of the cylinder 100, and in order to save the use of the scale inhibiting paint and simplify the scale inhibiting paint process, the second scale inhibiting part is disposed on the side of the cylinder 100 facing the outer cylinder, i.e., the peripheral outer wall of the cylinder 100.
In one embodiment, the number of scale inhibiting portions is at least two. For the first scale inhibiting part arranged on the inner wall of the cylinder body 100, because the cylinder body 100 repeatedly rotates forwards and backwards during operation, water flow in the containing cavity 10 of the cylinder body 100 can contact the whole surface or the large-amplitude surface of the inner wall of the cylinder body 100, and according to the scale inhibiting effect of the scale inhibiting part and the limitation of the cylinder body 100 on water hardness, a plurality of scale inhibiting parts are arranged to meet the demand of the water flow in the containing cavity 10 on scale inhibitor molecules, meanwhile, the application amount of scale inhibiting paint on the inner wall of the cylinder body 100 is reduced, and the cost is saved. For the second scale inhibiting part arranged on the outer wall of the cylinder body 100, because the cylinder body 100 repeatedly rotates forwards and backwards during operation, water flow in the water flow channel between the cylinder body 100 and the outer cylinder can contact the whole surface or the large-amplitude surface of the outer wall of the cylinder body 100, and according to the scale inhibiting effect of the scale inhibiting part and the limitation of the cylinder body 100 on water hardness, a plurality of scale inhibiting parts are arranged to meet the demand of water in the water flow channel on scale inhibitor molecules, and meanwhile, the application amount of scale inhibiting paint on the outer wall of the cylinder body 100 is reduced, and the cost is saved.
Further, the scale inhibiting layer is distributed along the rotation direction of the drum 100. When the cylinder body 100 rotates, the scale inhibiting part rotates along with the rotation, part of water flow is attached to the surface of the cylinder body 100 and rotates along with the rotation, and part of water flow cannot rotate along with the cylinder body 100 due to the self-gravity limitation, and the scale inhibiting layer is distributed along the rotation direction of the cylinder body 100, so that the water flow can be ensured to contact with more layered structures of the scale inhibiting part when the scale inhibiting layer rotates, and the scale inhibiting effect on the water flow is ensured.
Further, a scale inhibitor is attached to any longitudinal section of the wall of the cylinder 100, so that the lowest part of the wall has scale inhibitor molecules for the reaction of the scale inhibitor. The drum 100 for the laundry treating apparatus to treat laundry is generally cylindrical. When the number of the scale inhibiting parts on the inner wall or the outer wall of the cylinder body 100 is one, the scale inhibiting parts surround the surface of the cylinder body 100 where the scale inhibiting parts are located for a circle; further, the scale inhibiting layer arranged on the inner wall or the outer wall of the cylinder 100 is annular; when the number of the scale inhibiting parts on the inner wall or the outer wall of the cylinder body 100 is at least two, the at least two scale inhibiting parts distributed on the surface of the cylinder body 100 cover the inner wall or the outer wall of the cylinder body 100, so that the scale inhibiting parts are attached to any longitudinal section of the cylinder wall of the cylinder body 100, water flows move along the circumferential direction of the surface of the cylinder body 100 provided with the scale inhibiting parts along the rotation of the cylinder body 100, most of the water flows are contacted with the bottom of the inner wall or the outer wall of the cylinder body 100, and the scale inhibiting agent molecules for scale inhibiting reaction are arranged at the lowest part of the cylinder wall of the cylinder body 100 in the rotation process of the cylinder body 100, so that the water flow in the space at one side of the cylinder body 100 provided with the scale inhibiting. Specifically, in one embodiment, the number of the scale inhibiting parts is two, the two scale inhibiting parts are semicircular, the two scale inhibiting parts are distributed on the inner wall or the outer wall of the cylinder 100 in an end-to-end or staggered manner, the two scale inhibiting parts are distributed on the surface of the same side of the cylinder 100, the cross sections of the two scale inhibiting parts can form a circular ring structure, so that the scale inhibiting parts are attached to any longitudinal section of the cylinder wall of the cylinder 100, when the cylinder 100 rotates, water flow contacts different longitudinal parts of the surface of the cylinder 100 provided with the scale inhibiting parts, the water flow can contact the scale inhibiting parts, and further contact scale inhibitor molecules in the scale inhibiting parts, so as to inhibit scale.
In one embodiment, the scale inhibitor covers a local portion of the surface of the cylinder 100, and the scale inhibitor is wavy or zigzag, so as to increase the surface area of the scale inhibitor and ensure the scale inhibiting effect. Specifically, in one embodiment, when the scale inhibiting part is the second scale inhibiting part arranged on the outer wall of the cylinder 100, part of the water entering the water flow channel between the cylinder 100 and the outer cylinder flows downwards along the outer wall of the cylinder 100 under the self-gravity, and part of the water does not contact the outer wall of the cylinder 100; when the water flow contacting the outer wall of the cylinder body 100 flows downwards, the outer wall of the cylinder body 100 is uneven due to the wavy or saw-toothed shape of the scale inhibiting part, and the water contacting the outer wall of the cylinder body 100 is stirred, so that the flowing water flow is fully contacted with the scale inhibiting part. In another embodiment, the scale inhibitor is the first scale inhibitor disposed on the inner wall of the cylinder 100, the wavy or saw-toothed scale inhibitor on the inner wall of the cylinder 100 makes the inner wall surface of the cylinder 100 uneven, and the water flow entering the cavity 10 of the cylinder 100 contacts the uneven inner wall surface of the cylinder 100, so that the flow is more turbulent, the water flow is fully contacted with the scale inhibitor, and the scale inhibiting effect is improved.
In one embodiment, the scale inhibiting portions are uniformly distributed along the rotation direction of the cylinder 100, so that the center of gravity is not changed when the cylinder 100 rotates, and the dynamic balance of the cylinder 100 is not affected by the change of the center of gravity when the cylinder 100 rotates due to the arrangement of the scale inhibiting portions. Specifically, in one embodiment, the scale inhibitor is uniformly disposed on the entire surface of the inner wall of the cylinder 100 and/or the outer wall of the cylinder 100, and the arrangement of the scale inhibitor does not affect the dynamic balance of the cylinder 100. In another embodiment, the scale inhibitor is annularly distributed on the inner wall or the outer wall of the cylinder 100, and the central axis of the scale inhibitor coincides with the central axis of the cylinder 100. In another embodiment, the inner wall or the outer wall of the cylinder 100 is provided with a plurality of scale inhibiting parts, the plurality of scale inhibiting parts form an annular structure, and the central axis of the annular structure is coincident with the central axis of the cylinder 100.
In one embodiment, the scale inhibitor is a thin film structure. Specifically, the scale inhibiting part is a film structure formed by curing a scale inhibiting coating, and the scale inhibiting coating comprises a film forming agent, a scale inhibitor and a solvent. In the process of curing the scale inhibiting coating, the solvent is volatilized, the film forming agent is cured to form a film structure, and the scale inhibiting agent is dispersed in and on the film structure formed by the film forming agent. Film formers include, but are not limited to, natural resins, phenolic resins, olefinic resins, acrylic resins. The scale inhibitor comprises a solid scale inhibitor and a liquid scale inhibitor; furthermore, the solid scale inhibitor is powdery so as to be mixed with the film forming agent and the solvent uniformly. The scale inhibitor comprises but is not limited to polyphosphate scale inhibitor, phosphate scale inhibitor, amino compound scale inhibitor, polycarboxylic acid scale inhibitor, organic phosphine scale inhibitor and compound inorganic salt scale inhibitor. Further, the scale inhibiting coating for curing to form the scale inhibiting part includes at least two kinds of scale inhibiting agents to improve the scale inhibiting effect on water quality.
In one embodiment, the scale inhibiting portion is formed in a thin film structure by coating a scale inhibiting coating on the surface of the barrel 100. Further, the coating process is realized by spray gun spraying. Further, spray gun spraying includes air spraying, high pressure airless spraying. Specifically, compressed air for air spraying is sprayed from a center hole of the air cap, a negative pressure area is formed at the front end of the paint spray nozzle, so that the scale inhibiting paint in the paint container is sprayed from the spray nozzle, the paint is dispersed into particles, the particles fly to the surface of the cylinder body 100 in a mist shape and adhere to the surface of the cylinder body, and the particles are gathered, cured and dried to form a continuous film structure. The high-pressure airless spraying adopts a booster pump to increase the value and the high pressure of the coating (generally 120-390 kg/cm)2) The scale inhibiting paint is sprayed through the fine spray holes to form a fan-shaped fog shape, air is not mixed in the scale inhibiting paint, and the scale inhibiting paint is favorably attached to the surface of the cylinder body 100 to form a flat bubble-free film structure.
In one embodiment, the thickness of the scale inhibitor is 10 to 200 μm. The scale inhibiting part is not too thin so as to ensure that the scale inhibiting part contains a certain amount of scale inhibiting agent, thereby ensuring the scale inhibiting effect on water flow contacting the scale inhibiting part continuously and effectively and reducing the content of scale ions in the water flow. In addition, the scale inhibiting part is not too thick, so that when the thickness of the scale inhibiting part is increased to a certain degree, the scale inhibiting effect is not obviously improved, the cost is increased, and the time of the scale inhibiting part forming process is prolonged.
In one embodiment, the scale inhibitor is a slow-release scale inhibitor or the scale inhibiting coating further comprises a corrosion inhibitor, so that the scale inhibitor in the scale inhibiting portion releases scale inhibitor molecules at a certain rate, and the space where the water flow is located is filled with the scale inhibitor molecules, and the water flow can react with the scale inhibitor in the scale inhibiting portion on the cylinder body 100 in contact with the scale inhibitor molecules and can also react with the scale inhibitor molecules in the space where the water flow is located, so as to reduce the content of ions which are easy to scale, such as calcium ions and magnesium ions, in water or scale molecules, such as calcium carbonate and magnesium carbonate molecules, which are formed in the water, and accelerate the scale inhibiting speed. Further, the scale inhibition principle of the slow release scale inhibitor includes chelation, adsorption and dispersion as described above, and also includes lattice distortion. When the scale inhibitor plays a role of lattice distortion, the scale inhibitor molecules filled in the space of the water flow are adsorbed on the lattice point needles of the active growth points of the crystals in the scale forming process, so that the scale crystals can not be normally produced according to lattice arrangement, the scale crystals are distorted, and further the internal stress of the scale crystals is increased to cause the scale crystals to break, thereby preventing the microcrystals from being deposited and scaled and realizing the scale inhibition.
In one embodiment, as shown in fig. 1 and 2, the barrel 100 has a plurality of through holes 20 formed in the barrel for water to pass through. When the clothes treatment device is a drum type, when the drum 100 needs to treat clothes and needs water flow, water of the water supply part enters the water flow channel between the drum 100 and the outer drum and then enters the cavity 10 of the drum 100 from the through hole 20; when the water stream from the laundry within the drum 100 needs to be discharged, the drum 100 is discharged from the through-hole 20. When the laundry treating apparatus is of a pulsator type, the drum 100 is discharged from the through-hole 20 when the water flow of the laundry treated in the drum 100 needs to be discharged. Further, in order to prevent the scale inhibiting portion from blocking the through-hole 20, the through-hole 20 is formed after the scale inhibiting portion is applied to the body of the cylinder 100 when the cylinder 100 is prepared.
Example 2
The invention provides a preparation method of a scale inhibiting washing drum, which comprises the following steps as shown in figure 3:
s1, weighing the film forming agent, the solvent and the scale inhibitor with required components; uniformly mixing a film forming agent and a solvent to dissolve the film forming agent in the solvent, adding a scale inhibitor into the mixture of the film forming agent and the solvent, and stirring to uniformly mix to obtain a scale inhibiting coating;
s2, uniformly coating the scale inhibiting coating prepared in the step S1 on the surface of the cylinder body 100, drying and curing to prepare the scale inhibiting washing cylinder for the clothes treatment device.
In one embodiment, in step S1, the weight parts of the film forming agent and the solvent are 60 to 70 and 20 to 35, respectively; the scale inhibitor accounts for 1-10% of the weight of the scale inhibiting coating. The solvent is used for dissolving the film forming agent, the type of the solvent is determined according to the type of the film forming agent, and the amount of the solvent is determined according to the dosage. Film formers include, but are not limited to, natural resins, phenolic resins, vinyl resins, acrylic resins. The scale inhibitor comprises a solid scale inhibitor and a liquid scale inhibitor; furthermore, the solid scale inhibitor is powdery so as to be mixed with the film forming agent and the solvent uniformly. The scale inhibitor includes but is not limited to polyphosphate scale inhibitor, phosphonate scale inhibitor, amino compound scale inhibitor, polycarboxylic acid scale inhibitor, organic phosphine scale inhibitor and compound inorganic salt scale inhibitor. Further, the scale inhibiting coating comprises at least two scale inhibitors to improve the scale inhibiting effect on water quality. Further, the polyphosphate scale inhibitor comprises sodium hexametaphosphate and sodium tripolyphosphate; the phosphonate scale inhibitor comprises ethylene diamine tetra methylene tetraphosphonic acid and amino trimethylene phosphonic acid; the amino compound scale inhibitor comprises diethylenetriamine, triethylenetetramine and polyacrylamide; the polycarboxylic acid scale inhibitor comprises sodium polyacrylate and polyaspartic acid.
In an embodiment, before coating in step S2, the method further includes cleaning the surface of the barrel 100. Specifically, the cleaning agent is used to clean the surface of the cylinder body 100 by mechanical, physical or chemical methods, so that the surface of the cylinder body 100 is clean, and the subsequent coating of the scale inhibiting coating is facilitated, so that the scale inhibiting coating can form a uniform and compact film structure on the surface of the cylinder body 100 and the scale inhibiting coating is firmly attached.
In one embodiment, in step S2, a spray gun is used to spray the scale inhibiting paint on the surface of the barrel 100; the spraying distance is 15-35 cm; the gun moving speed is 2-3 cm/s; the paint yield of the scale inhibiting coating is 35-350 ml/min, so that a uniform and compact film structure containing scale inhibitor molecules is formed on the surface of the cylinder body 100.
In one embodiment, step S2 further includes adding an auxiliary agent to the mixture of film former and solvent. Furthermore, the auxiliary agent comprises a bacteriostatic agent, a defoaming agent, a wetting agent and a preservative. Furthermore, the total weight of the auxiliary agent accounts for 0.5-2.5% of the weight of the scale inhibiting coating. In one embodiment, the auxiliary comprises (1.2-1.3) a bacteriostatic agent, a defoaming agent, a wetting agent and a preservative in parts by weight: (0.5-0.7): (0.3-0.4): (0.2-0.5). The bacteriostatic agent is used for leading the scale inhibition part to have bacteriostatic effect on water in the water flow channel, inhibiting the growth of bacteria and preventing the excessive breeding of the bacteria. The defoaming agent inhibits bubbles generated in the process of forming the scale inhibiting part and discharges the generated bubbles out of the film structure to break the bubbles. The wetting agent improves the wetting property of the scale inhibiting coating on the surface of the cylinder body 100 and improves the leveling property of the scale inhibiting coating so as to increase the adhesion of the scale inhibiting coating on the surface of the cylinder body 100. The preservative prevents the scale-inhibiting paint from deteriorating during storage.
The preparation processes provided herein are illustrated below in various specific examples. It should be understood that these examples are for illustrative purposes only and are not to be construed as limiting the invention in any way.
Example 3
Weighing 60 parts by weight of acrylic resin, 25 parts by weight of solvent and 9 parts by weight of sodium hexametaphosphate; wherein the solvent is n-butanol; and (2) uniformly mixing acrylic resin and n-butyl alcohol to dissolve the acrylic resin in the n-butyl alcohol, adding sodium hexametaphosphate into the mixture of the acrylic resin and the n-butyl alcohol, and stirring to obtain the scale inhibition coating. And spraying the scale inhibiting coating on the inner wall surface of the cylinder body 100 by a spray gun, wherein the spraying distance of the spray gun is 35cm, the gun moving speed is 3cm/s, the paint output of the scale inhibiting coating is 40ml/min, drying and curing are carried out, a scale inhibiting part is formed, and the scale inhibiting part covers the whole inner wall surface of the cylinder body 100.
Example 4
Weighing 70 parts by weight of acrylic resin, 30 parts by weight of solvent and 11 parts by weight of sodium hexametaphosphate; wherein the solvent is n-butanol; and (2) uniformly mixing acrylic resin and n-butyl alcohol to dissolve the acrylic resin in the n-butyl alcohol, adding sodium hexametaphosphate into the mixture of the acrylic resin and the n-butyl alcohol, and stirring to obtain the scale inhibition coating. And spraying the scale inhibiting coating on the inner wall surface of the cylinder body 100 by a spray gun, wherein the spraying distance of the spray gun is 35cm, the gun moving speed is 3cm/s, the paint output of the scale inhibiting coating is 40ml/min, drying and curing are carried out, a scale inhibiting part is formed, and the scale inhibiting part covers the whole inner wall surface of the cylinder body 100.
Example 5
Weighing 60 parts by weight of acrylic resin, 25 parts by weight of solvent and 9 parts by weight of sodium hexametaphosphate; wherein the solvent is n-butanol; and (2) uniformly mixing acrylic resin and n-butyl alcohol to dissolve the acrylic resin in the n-butyl alcohol, adding sodium hexametaphosphate into the mixture of the acrylic resin and the n-butyl alcohol, and stirring to obtain the scale inhibition coating. And spraying the scale inhibiting coating on the peripheral side surface of the outer wall of the cylinder body 100 by a spray gun, wherein the spraying distance of the spray gun is 35cm, the gun moving speed is 3cm/s, the paint discharging amount of the scale inhibiting coating is 40ml/min, drying and curing are carried out, a scale inhibiting part is formed, and the scale inhibiting part covers the whole peripheral side surface of the outer wall of the cylinder body 100.
Example 6
Weighing 70 parts by weight of acrylic resin, 30 parts by weight of solvent and 11 parts by weight of sodium hexametaphosphate; wherein the solvent is n-butanol; and (2) uniformly mixing acrylic resin and n-butyl alcohol to dissolve the acrylic resin in the n-butyl alcohol, adding sodium hexametaphosphate into the mixture of the acrylic resin and the n-butyl alcohol, and stirring to obtain the scale inhibition coating. And spraying the scale inhibiting coating on the peripheral side surface of the outer wall of the cylinder body 100 by a spray gun, wherein the spraying distance of the spray gun is 35cm, the gun moving speed is 3cm/s, the paint discharging amount of the scale inhibiting coating is 40ml/min, drying and curing are carried out, a scale inhibiting part is formed, and the scale inhibiting part covers the whole peripheral side surface of the outer wall of the cylinder body 100.
Comparative example 1
Neither the inner nor outer walls of the cylinder 100 are coated.
Example 7
Five groups of experimental water are respectively prepared, and calcium chloride and magnesium chloride are dissolved by deionized water, so that the concentrations of calcium ions and magnesium ions in the prepared experimental water are respectively 500mg/L and 300 mg/L. The cylinders 100 of examples 3, 4, 5, 6 and 1 were completely immersed in the test water, left to stand for 10min, and five groups of cylinders 100 were taken out to test the concentrations of calcium ions and magnesium ions in the test water for immersion in examples 3, 4, 5, 6 and 1, as shown in table one.
Watch 1
It can be seen from the table that, compared to comparative example 1, the scale inhibiting parts provided on the inner wall or outer wall of the cylinder 100 can reduce the content of calcium ions and magnesium ions in the water body contacting the scale inhibiting parts, and in examples 3 and 4, since the bottom of the inner wall of the cylinder 100 is also coated with the scale inhibiting parts, the surface areas of the scale inhibiting parts in examples 3 and 4 are respectively larger than those of the scale inhibiting parts in examples 5 and 6, and the scale inhibiting effect of the cylinder 100 in examples 3 and 4 soaked in the corresponding test water on the test water is respectively larger than that of the scale inhibiting parts in examples 5 and 6.
Example 8
The invention provides a washing machine, comprising the scale inhibiting washing drum for the clothes treatment device. Specifically, the washing machine includes a cabinet, a motor, the drum 100 and the motor are disposed in the cabinet, and the drum 100 is connected to the motor to realize rotation. In one embodiment, the washing machine is a pulsator washing machine, and the inner wall of the tub 100 is provided with a scale inhibiting portion to reduce the content of scale ions in the water flowing into the tub 100. In a further embodiment, the washing machine is a drum type washing machine, and the inner and/or outer walls of the tub 100 are provided with scale inhibiting parts to reduce the content of scale ions in the water stream contacting the outer surface of the tub 100 provided with the scale inhibiting parts.
The invention provides a scale inhibiting washing drum for a clothes treatment device, wherein a scale inhibiting part is arranged on the surface of a drum body of the drum body to reduce the content of scale formation ions in water flow contacting the scale inhibiting part on the surface of the drum body, the probability of scale formation on the surface of a contacted part is reduced in the flowing process of the water flow with the reduced content of the scale formation ions in the clothes treatment device, and the cleanness of the surface of the corresponding part is improved.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of adaptation of the invention, and further modifications can be easily implemented by those skilled in the art, so that the invention is not limited to the specific details and the examples shown herein, without departing from the general concept defined by the claims and the scope of equivalents.
Claims (14)
1. A dirt-inhibiting washing drum for a clothes treatment device comprises a drum body (100) rotatably arranged in the clothes treatment device, and is characterized in that the drum body (100) is provided with a cavity (10) for accommodating clothes; one side of the cavity (10) is opened for putting clothes; wherein the content of the first and second substances,
the surface of the cylinder body (100) is provided with a scale inhibiting part which is of a layered structure, so that the cylinder body (100) forms a cylinder body surface structure containing scale inhibitor molecules;
water contacts the barrel (100) structure containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the level of scale ions in the water stream.
2. A dirt suppressing washing drum for a laundry treating apparatus according to claim 1, characterized in that the dirt suppressing part comprises a first dirt suppressing part disposed on the inner wall of the drum (100) so that the drum (100) forms an inner wall structure containing dirt suppressing agent molecules to reduce the content of scale forming ions in the water flow after entering the cavity (10).
3. A soil inhibiting washing drum for a clothes treating apparatus according to claim 2, wherein the bottom of the inner wall of the drum body (100) is provided with a first soil inhibiting portion.
4. A scale inhibiting washing drum for a laundry treating apparatus according to claim 1, wherein the scale inhibiting portion includes a second scale inhibiting portion disposed on an outer wall of the drum (100) such that the drum (100) forms an outer wall structure containing scale inhibiting agent molecules to reduce a content of scale forming ions in a water flow passage formed by the drum (100) and an outer tub of the laundry treating apparatus.
5. A soil inhibiting washing drum for a laundry treating apparatus according to claim 4, wherein the second soil inhibiting portion is provided at a side of the drum body (100) facing the tub.
6. A soil inhibiting washing drum for a laundry treating device according to claim 1, wherein the number of soil inhibiting portions is at least two.
7. A scale inhibiting washing drum for a clothes treating apparatus according to claim 1, wherein a scale inhibiting portion is attached to any longitudinal section of the drum wall of the drum body (100) so that the lowest portion of the drum wall has scale inhibiting molecules for a scale inhibitor to react.
8. A soil inhibiting washing drum for a laundry treating apparatus according to claim 1, wherein the soil inhibiting portion is uniformly distributed along a rotation direction of the drum (100) such that a center of gravity of the drum (100) is not changed when the drum rotates.
9. A soil inhibiting washing drum for a clothes treating apparatus according to claim 1 wherein the soil inhibiting portion has a thickness of 10 to 200 μm.
10. A method for preparing a scale inhibiting washing drum is characterized by comprising the following steps:
s1, dissolving the film forming agent in the solvent, adding the scale inhibitor, and uniformly mixing to obtain the scale inhibiting coating;
s2, uniformly coating the scale inhibiting coating prepared in the step S1 on the surface of the cylinder body (100), drying and curing to prepare the scale inhibiting washing cylinder for the clothes treatment device as claimed in claim 1.
11. The method for preparing a scale inhibiting washing drum according to claim 10, wherein in step S1, the weight parts of the film forming agent and the solvent are 60-70 and 20-35 respectively; the scale inhibitor accounts for 1-10% of the weight of the scale inhibiting coating.
12. The method of claim 10, further comprising cleaning the surface of the body (100) prior to coating in step S2.
13. The method as claimed in claim 10, wherein the step S2 is performed by spraying the scale inhibiting paint on the surface of the barrel body (100) with a spray gun; the spraying distance is 15-35 cm; the gun moving speed is 2-3 cm/s; the paint yield of the scale inhibiting coating is 35-350 ml/min.
14. A washing machine comprising a dirt-inhibiting washing drum for a laundry treatment apparatus as claimed in any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115678358A (en) * | 2021-07-27 | 2023-02-03 | 青岛胶南海尔洗衣机有限公司 | Washing machine impeller, preparation method of washing machine impeller and washing machine |
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