CN113440011B - Oil filter utensil and cooking utensil - Google Patents
Oil filter utensil and cooking utensil Download PDFInfo
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- CN113440011B CN113440011B CN202010216847.9A CN202010216847A CN113440011B CN 113440011 B CN113440011 B CN 113440011B CN 202010216847 A CN202010216847 A CN 202010216847A CN 113440011 B CN113440011 B CN 113440011B
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- oil
- water separation
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- separation membrane
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
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- Food Science & Technology (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an oil filtering appliance and a cooking appliance. The oil filter apparatus comprises: the solid framework is provided with a hollow part; the oil-water separation membrane covers the hollow part and is provided with a penetration hole, and grease or water in the oil-water mixture passes through the penetration hole so as to separate the grease and the water on two sides of the oil-water separation membrane. The oil-water separation membrane provided by the invention is provided with the penetration holes, and only one of grease and water can pass through the oil-water separation membrane due to the fact that grease or water in an oil-water mixture can selectively pass through the penetration holes, so that the grease and water can be separated on two sides of the oil-water separation membrane, the purpose of oil-water separation is achieved, the oil filtering function is realized, the phenomenon that the ingestion of grease by a consumer is too high is avoided, and the health of the consumer is facilitated.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to an oil filtering appliance and a cooking appliance.
Background
At present, a large amount of grease can be separated out from meat food materials in the liquid phase heating process, and health problems such as three highs and the like can be caused when the intake of the grease by consumers is higher.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide an oil filtering apparatus.
Another object of the present invention is to provide a cooking appliance including the oil filtering appliance.
In order to achieve the above object, a first aspect of the present invention provides an oil filtering apparatus, comprising: the solid framework is provided with a hollow part; and the oil-water separation membrane covers the hollow part and is provided with a penetration hole, and grease or water in the oil-water mixture passes through the penetration hole so as to separate the grease and the water on two sides of the oil-water separation membrane.
The oil filtering appliance provided by the technical scheme of the first aspect of the invention comprises an entity framework and an oil-water separation membrane. The solid framework is used as a carrier of the oil-water separation membrane, and ensures that the oil filter can be assembled in containers such as a heating container and the like, and then contacts an oil-water mixture in the container to carry out oil-water separation on the oil-water mixture. The oil-water separation membrane covers the hollow part of the solid framework and is provided with the penetration hole, and because the penetration hole is used for oil or water in an oil-water mixture to selectively pass through, only one of the oil and the water can pass through the oil-water separation membrane, so that the oil and the water can be separated on two sides of the oil-water separation membrane, the purpose of oil-water separation is achieved, the oil filtering function is realized, the phenomenon that the intake of oil by a consumer is too high is favorably avoided, and the health of the consumer is favorably realized.
In addition, the oil filtering apparatus in the above technical scheme provided by the invention can also have the following additional technical features:
in the above technical scheme, the oil-water separation membrane is a hydrophilic oleophobic membrane.
The oil-water separation membrane is a hydrophilic oleophobic membrane and shows the characteristics of hydrophilicity and oleophobicity, namely: exhibits affinity for water and non-affinity for oil, the water contact angle of the hydrophilic oleophobic membrane is in the range of 0 DEG to 90 DEG, and the oil contact angle is in the range of more than 90 DEG and not more than 180 deg. The hydrophilic oleophobic membrane has opposite affinity to oil and water, so that water can be induced to selectively pass through the permeation holes on the oil-water separation membrane, and grease cannot pass through the permeation holes on the oil-water separation membrane, so that grease is separated, and oil-water separation is realized.
In the technical scheme, the water contact angle of the hydrophilic oleophobic membrane is in the range of 0.5-30 ℃ in the range of 0-110 ℃; and/or the pore size of the permeation pores of the hydrophilic oleophobic membrane is in the range of 0.01mm to 0.1 mm; and/or the hydrophilic oleophobic membrane comprises a hydrophilic silica or a hydrophilic ceramic metal oxide.
In the process of cooking food, the temperature of liquid in the container is generally in the range of 0 ℃ to 110 ℃, such as 0 ℃, 10 ℃, 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃ and the like, so that the water contact angle of the hydrophilic oleophobic membrane in the temperature range is limited in the range of 0.5-30 degrees, such as 0.5 degrees, 1 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees and the like, and the hydrophilic oleophobic membrane in the cooking process is ensured to have very good hydrophilic performance, thereby being beneficial to water to rapidly and smoothly pass through the permeation hole of the hydrophilic oleophobic membrane and being beneficial to rapidly realizing oil-water separation. The temperature of the soup when boiling is generally in the range of 80 ℃ to 100 ℃, so that the water contact angle of the hydrophilic oleophobic membrane in the temperature range is further limited to be in the range of 0.5 DEG to 30 deg.
The aperture (diameter) of the penetration hole of the hydrophilic oleophobic membrane is limited within the range of 0.01mm to 0.1mm, such as 0.01mm, 0.03mm, 0.05mm, 0.07mm, 0.09mm, 0.1mm and the like, so that the problem that the preparation process of the hydrophilic oleophobic membrane is too complex due to too small aperture is avoided, the production cost is favorably reduced, the oil filtering efficiency is improved due to the fact that water rapidly passes through the membrane, the problem that the oil-water separation effect is influenced due to the fact that part of grease penetrates through the membrane due to too large aperture is avoided, and meanwhile, the oil-water separation effect is better under the impact action of boiling soup.
Furthermore, the water contact angle of the hydrophilic oleophobic membrane and the aperture of the permeation hole are limited in the range, so that the hydrophilic performance of the hydrophilic oleophobic membrane can be improved, water can rapidly pass through the hydrophilic oleophobic membrane, and the permeation of partial grease is avoided or reduced.
The components of the hydrophilic oleophobic membrane can comprise hydrophilic silicon dioxide, and can also comprise ceramic metal oxides such as titanium dioxide and zirconium oxide, the oil-water separation membrane containing the components has very good hydrophilic performance, oil is oleophobic, the processing technology is mature, harmful substances cannot be generated due to decomposition when the oil is heated in the cooking process, and the health of consumers is facilitated.
In the technical scheme, the oil-water separation membrane is a hydrophobic lipophilic membrane.
The oil-water separation membrane is a hydrophobic lipophilic membrane and is characterized by oleophylic and hydrophobic properties, namely: exhibits affinity for oil and non-affinity for water, and has an oil contact angle in the range of 0 DEG to 90 DEG and a water contact angle in the range of greater than 90 DEG and equal to or less than 180 deg. The hydrophobic lipophilic film has opposite affinity to oil and water, so that oil can be induced to selectively pass through the permeation holes on the oil-water separation film, and water cannot pass through the permeation holes on the oil-water separation film, so that oil and fat are separated, and oil-water separation is realized.
In the above technical solution, the oil contact angle of the hydrophobic oleophilic film is in the range of 1 ° to 50 ° in the range of 0 ℃ to 110 ℃; and/or the pore diameter of the permeation pores of the hydrophobic oleophilic film is in the range of 0.02mm to 0.15 mm; and/or the hydrophobic lipophilic film comprises a hydrophobic polyfluoro polymer or a hydrophobic polysiloxane polymer.
In the process of cooking food, the temperature of liquid in the container is generally in the range of 0 ℃ to 110 ℃, such as 0 ℃, 10 ℃, 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃ and the like, so that the oil contact angle of the hydrophobic lipophilic film in the temperature range is limited in the range of 1-50 degrees, such as 1 degree, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees and the like, the hydrophobic lipophilic film is ensured to have very good lipophilic performance, grease can rapidly and smoothly pass through the permeation hole of the hydrophobic lipophilic film, and oil-water separation can be rapidly realized. The temperature at which the broth boils is typically in the range of 80 ℃ to 100 ℃, thus further defining the oil contact angle of the hydrophobic oleophilic film in this temperature interval in the range of 1 ° to 50 °.
The aperture (diameter) of the penetration hole of the hydrophobic oleophilic film is limited within the range of 0.02mm to 0.15mm, such as 0.02mm, 0.04mm, 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.12mm, 0.15mm and the like, so that the preparation process of the hydrophobic oleophilic film is prevented from being too complex due to too small aperture, the production cost is reduced, the oil filtering efficiency is improved due to the rapid passing of the oil, the oil-water separation effect is prevented from being influenced due to the penetration of part of water due to too large aperture, and the oil-water separation effect can be ensured to be better under the impact action of boiling soup.
Furthermore, the oil contact angle of the hydrophobic lipophilic film and the aperture of the permeation hole are limited in the range, so that the oleophilic property of the hydrophobic lipophilic film can be improved, oil can rapidly pass through, and the permeation of part of water is avoided or reduced.
The hydrophobic lipophilic film can be made of hydrophobic polyfluoro polymers or hydrophobic polysilane polymers, the oil-water separation film containing the hydrophobic polyfluoro polymers or hydrophobic polysilane polymers has very good oleophilic property, is hydrophobic to water, has mature processing technology, cannot be decomposed to generate harmful substances when being heated in the cooking process, and is beneficial to the health of consumers.
In any one of the above technical schemes, the oil-water separation membrane is attached to the solid framework; or the oil-water separation membrane is sprayed on the solid framework; or the oil-water separation membrane is prepared on the solid framework by adopting a liquid-phase self-assembly process.
The oil-water separation membrane can be connected with the solid framework by adopting a pasting process, namely: respectively processing an entity framework and an oil-water separation membrane, and then pasting the oil-water separation membrane on the entity framework to ensure that the oil-water separation membrane covers the hollow part of the entity framework. The scheme is convenient for reasonably selecting the components and the forming process of the oil-water separation membrane according to the needs.
The oil-water separation membrane can also adopt a spraying mode, so that the hollow part of the solid framework is covered by the oil-water separation membrane formed by the coating. The oil-water separation membrane is tightly connected with the solid framework by the scheme, so that the connection strength of the oil-water separation membrane and the solid framework is favorably improved, and the use reliability of the oil filter is improved.
Self-assembly refers to a technique in which basic building blocks (molecules, nanomaterials, substances of micron or larger scale) spontaneously form ordered structures. During the self-assembly process, the basic building blocks spontaneously organize or aggregate into a stable structure with a certain regular geometric appearance under the interaction based on non-covalent bonds. Most of the studies of self-assembled systems are carried out in solution, namely: and (4) liquid phase self-assembly. Therefore, the solid skeleton can be placed in the liquid phase for preparing the oil-water separation membrane, and substances in the solution can spontaneously form the oil-water separation membrane and cover the hollow part of the solid skeleton, namely: the oil-water separation membrane is prepared on the solid framework by adopting a liquid-phase self-assembly process. The scheme is simple and easy to implement and is suitable for popularization.
In any one of the above technical solutions, the oil-water separation membrane and the solid skeleton form an oil-water separation surface, the oil-water separation membrane is suitable for separating oil and water on two sides of the oil-water separation surface, and the area of the hollow portion accounts for 10% to 50% of the area of the oil-water separation surface.
The oil-water separation membrane and the solid framework form an oil-water separation surface, and in the using process, the oil-water separation membrane induces grease or water to pass through the permeation holes, so that the grease and the water are separated on two sides of the oil-water separation membrane, and the grease and the water are also separated on two sides of the oil-water separation surface. The proportion of the area of the hollow part to the area of the oil-water separation surface is limited in the range of 10-50%, such as 10%, 20%, 30%, 40%, 50% and the like, so that the oil filtering efficiency is low due to too few hollow parts, the oil filtering efficiency of an oil filtering appliance is improved, the strength of the oil filtering appliance is low due to too many hollow parts, the use reliability of the oil filtering appliance is improved, the impact force of boiling soup on an oil-water separation membrane on the hollow part is reduced, and the combination strength and the service life of the oil-water separation membrane are ensured.
In any of the above technical solutions, the solid skeleton is a metal member, a glass member, a ceramic member, or a polymer member.
The solid skeleton may be, but is not limited to, a metal, glass, ceramic, or polymer article. The metal piece, the glass piece and the ceramic piece have good temperature resistance and corrosion resistance, and no harmful substance is generated when the metal piece, the glass piece and the ceramic piece are heated in the cooking process, so that the health of consumers is facilitated. The polymer can be processed into various shapes according to requirements, and is favorable for reducing the weight of an oil filter appliance and reducing the production cost of products.
In any one of the above technical solutions, the solid skeleton encloses a containing cavity, and the hollow portion is disposed on the side wall and/or the bottom wall of the containing cavity.
The solid framework is enclosed to form the accommodating cavity, so that the oil filtering appliance has the function of containing materials such as food materials and oil-water mixtures, the oil filtering appliance is convenient to store grease or water in the accommodating cavity after separating the grease, and the grease or water is prevented from leaking from the oil filtering appliance. In this case, the oil-water separation surface is an inner wall surface of the accommodating chamber.
In the above technical scheme, a liquid level line is arranged on the side wall of the accommodating cavity, and the hollow part is located on the upper side of the liquid level line.
A liquid level line is provided on the side wall of the receiving chamber, which liquid level line defines the maximum level of the liquid in the container which cooperates with the oil filter apparatus in the use state, namely: when the oil filter apparatus is assembled with the container, the liquid level of the liquid added in the container cannot exceed the liquid level of the oil filter apparatus. And the part of the lower side of the liquid level line is formed into a storage cavity for storing the liquid which cannot pass through the oil-water separation membrane in the accommodating cavity, so that the phenomenon that the residual liquid phase separated in the accommodating cavity blocks the permeation hole of the oil-water separation membrane to reduce the oil filtering efficiency is favorably prevented. In addition, the scheme also reduces the range of the hollow part, facilitates the cleaning of an oil filter appliance, correspondingly reduces the size of the oil-water separation membrane and is beneficial to reducing the product cost.
Further, the oil-water separation membrane adopts a hydrophobic oleophilic membrane, at least a part of the oil filtering device can be suspended in the heating container, food materials and water are placed in the heating container, and the liquid level is positioned below the oil filtering device before the liquid in the heating container is boiled. In the process of heating food materials, grease in the food is gradually dispersed in water and floats to the liquid level. Under the boiling state, the grease floating on the upper layer forms a certain tide rolling phenomenon along with water, and the rolling grease and the water repeatedly scour the oil-water separation membrane. Due to the oleophilic and hydrophobic properties of the hydrophobic oleophilic film, grease can pass through the hydrophobic oleophilic film to enter the containing cavity, while water is isolated outside and then returns to the liquid phase in the container, thereby separating out excess grease during cooking. And establish the upside at the liquid level line with fretwork portion for oil water separating membrane is not contact liquid when the liquid level is static, and receives the contact of washing away repeatedly of oil water mixture when boiling, and such structural design does benefit to and improves oil strain efficiency, reduces the fretwork portion quantity in the part simultaneously, convenient washing. If the oil-water separation membrane is directly immersed below the liquid level, the probability that grease floating on the water surface contacts the oil-water separation membrane is reduced, and the risk of water seepage exists. Simultaneously, this kind of design makes the grease that has filtered out can not hinder further filtration process because the filterable grease will flow into oil filter utensil bottom along with the effect of gravity to keep the smoothness of oil water separating membrane's infiltration hole.
In any one of the above aspects, the hollow portion includes a plurality of flow holes provided at intervals, the oil-water separation film covers the flow holes, and the flow holes include a plurality of the penetration holes.
The hollow part is provided with a plurality of circulation holes arranged at intervals, and the circulation holes are covered by the oil-water separation film, so that the circulation holes are provided with a plurality of permeation holes of the oil-water separation film. The impact of the boiling soup on the oil-water separation membrane can be dispersed, so that the damage to the oil-water separation membrane is reduced; and the boiled soup can be dispersed and contacted with the oil-water separation membrane, so that water or oil in the soup can be dispersed and infiltrated into the penetration holes, thereby improving the water/oil penetration capability and improving the utilization rate of the oil-water separation membrane. Simultaneously, compare in directly covering whole fretwork portion with oil-water separation membrane, the entity skeleton that has the opening of a plurality of intervals setting can provide bigger holding power for oil-water separation membrane, is favorable to improving oil-water separation membrane's use reliability, is favorable to prolonging oil-water separation membrane's life.
In any of the above technical solutions, the solid skeleton is provided with a support portion, and the support portion is used for being matched with a container so that the oil filtering apparatus is supported by the container; and/or the solid skeleton is provided with a hanging part for cooperating with a container for hanging the oil filtering apparatus at least partially in the container.
The entity skeleton is equipped with the supporting part, and the supporting part can cooperate with the container for oil strain utensil can be supported by the container, realizes the equipment cooperation of oil strain utensil and container. Wherein, the supporting portion can be, but is not limited to: the supporting device comprises an annular supporting edge, a plurality of supporting lugs arranged at intervals along the circumferential direction of the solid framework, supporting blocks arranged at the bottom of the solid framework and the like.
The solid framework is provided with a hanging part which can be matched with the container, so that the oil filtering apparatus can be at least partially hung in the container, and the assembly and matching of the oil filtering apparatus and the container are realized. Wherein, the hanging part can be but is not limited to: a plurality of hooks or hangers arranged along the circumferential direction of the solid framework at intervals are matched with the upper edge hooks of the container or matched with the hanging holes arranged on the container.
An aspect of the second aspect of the present invention provides a cooking appliance, including: a container; and an oil filtering apparatus as claimed in any one of the preceding claims configured to be at least partially adapted for placement within the container.
The cooking appliance provided by the technical scheme of the second aspect of the invention comprises the oil filtering appliance in any one of the technical schemes of the first aspect, so that all the beneficial effects of any one of the technical schemes are achieved, and the description is omitted.
In the above technical scheme, the container is a heating container.
In the above technical solution, the cooking appliance may be, but is not limited to: the container is correspondingly an inner pot of the electric cooker, an inner pot of the electric pressure cooker, a pot body of the saucepan, a pot body of the steamer, a cup body of the soybean milk maker, a pot body of the saucepan and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of an oil filtering apparatus according to one embodiment of the present invention;
fig. 2 is a schematic view of a cooking appliance according to an embodiment of the present invention;
FIG. 3 is a schematic view of a cooking appliance according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a first state of the cooking appliance according to the embodiment of the present invention;
fig. 5 is a schematic view of the cooking appliance of fig. 4 in a second state.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
1 entity skeleton, 11 hold the chamber, 111 lateral walls, 112 diapire, 113 storage chamber, 12 liquid level lines, 2 oil water separating membrane, 21 hydrophilic oleophobic membrane, 22 hydrophobic oleophilic membrane, 3 containers, 31 liquid, 311 water, 312 grease, 32 edible material.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
An oil filtering appliance and a cooking appliance according to some embodiments of the present invention will be described below with reference to fig. 1 to 5.
An embodiment of the first aspect of the invention provides an oil filtering apparatus, as shown in fig. 1, comprising: an entity framework 1 and an oil-water separation membrane 2.
Specifically, the solid skeleton 1 is provided with a hollow portion. The oil-water separation membrane 2 covers the hollow part, and the oil-water separation membrane 2 has a penetration hole through which the grease 312 or the water 311 in the oil-water mixture passes to separate the grease 312 and the water 311 on both sides of the oil-water separation membrane 2.
An embodiment of the first aspect of the invention provides an oil filtering apparatus, which comprises a solid framework 1 and an oil-water separation membrane 2. The solid framework 1 is used as a carrier of the oil-water separation membrane 2, and ensures that an oil filter appliance can be assembled in a container 3 such as a heating container and the like, and then contacts an oil-water mixture in the container 3 to carry out oil-water separation on the oil-water mixture. The oil-water separation membrane 2 covers the hollow part of the solid framework 1 and is provided with a penetration hole, and as the penetration hole is used for selectively passing the grease 312 or the water 311 in the oil-water mixture, only one of the grease 312 and the water 311 can pass through the oil-water separation membrane 2, so that the grease 312 and the water 311 can be separated on two sides of the oil-water separation membrane 2, the purpose of oil-water separation is achieved, the oil filtering function is realized, the phenomenon that the ingestion of a consumer to the grease 312 is too high is avoided, and the health of the consumer is facilitated.
In some embodiments of the present invention, the oil-water separation membrane 2 is a hydrophilic oleophobic membrane 21, as shown in fig. 3.
The oil-water separation membrane 2 is a hydrophilic oleophobic membrane 21, and shows the characteristics of hydrophilicity and oleophobicity, namely: and exhibits affinity for water 311 and non-affinity for oil, the water contact angle of the hydrophilic oleophobic membrane 21 is in the range of 0 ° to 90 °, and the oil contact angle is in the range of greater than 90 ° and equal to or less than 180 °. Since the hydrophilic oleophobic membrane 21 has diametrically opposite affinities for oil and water 311, water 311 can be induced to selectively pass through the permeation holes of the oil-water separation membrane 2, and grease 312 cannot pass through the permeation holes of the oil-water separation membrane 2, so that the grease 312 is separated, and oil-water separation is realized.
Further, in the range of 0 ℃ to 110 ℃, the water contact angle of the hydrophilic oleophobic membrane 21 is in the range of 0.5 ° to 30 °.
Further, in the range of 80 ℃ to 100 ℃, the water contact angle of the hydrophilic oleophobic membrane 21 is in the range of 0.5 ° to 30 °.
In the cooking process of food, the temperature of the liquid 31 in the container 3 is generally in the range of 0 ℃ to 110 ℃, such as 0 ℃, 10 ℃, 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃ and the like, so that the water contact angle of the hydrophilic oleophobic membrane 21 in the temperature range is limited to the range of 0.5 DEG to 30 DEG, such as 0.5 DEG, 1 DEG, 5 DEG, 10 DEG, 15 DEG, 20 DEG, 25 DEG, 30 DEG and the like, and the hydrophilic oleophobic membrane 21 is ensured to have very good hydrophilic performance in the cooking process, thereby being beneficial to the water 311 to rapidly and smoothly pass through the permeation hole of the hydrophilic oleophobic membrane 21 and being beneficial to rapidly realizing oil-water separation.
The temperature at which the broth boils is generally in the range of 80 ℃ to 100 ℃, and thus the water contact angle of the hydrophilic oleophobic membrane 21 in this temperature range is further defined to be in the range of 0.5 ° to 30 °.
Of course, the water contact angle of the hydrophilic oil-repellent membrane 21 in the above temperature range is not limited to the above range, and may be adjusted as needed in the actual production process, such as 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, and the like.
Wherein the pore diameter of the penetration hole of the hydrophilic oleophobic membrane 21 is in the range of 0.01mm to 0.1 mm.
The aperture (diameter) of the penetration hole of the hydrophilic oleophobic membrane 21 is limited within the range of 0.01mm to 0.1mm, such as 0.01mm, 0.03mm, 0.05mm, 0.07mm, 0.09mm, 0.1mm and the like, so that the problem that the preparation process of the hydrophilic oleophobic membrane 21 is too complicated due to too small aperture is avoided, the production cost is favorably reduced, the rapid passing of water 311 is also facilitated to improve the oil filtering efficiency, the problem that the oil-water separation effect is influenced due to the fact that part of grease 312 penetrates through due to too large aperture is avoided, and meanwhile, the oil-water separation effect is better under the impact action of boiling soup.
Of course, the pore diameter of the penetration hole of the hydrophilic oleophobic membrane 21 is not limited to the above range, and can be adjusted as required in the actual production process, such as 0.15mm, 0.2mm, and the like.
Further, by limiting the water contact angle of the hydrophilic oil-repellent film 21 and the pore diameter of the permeation pores to the above ranges, it is possible to improve the hydrophilic performance of the hydrophilic oil-repellent film 21, allow water to rapidly pass therethrough, and prevent or reduce permeation of a part of grease.
Specifically, the composition of the hydrophilic oleophobic membrane 21 includes hydrophilic silica or hydrophilic ceramic metal oxide.
The hydrophilic oleophobic membrane 21 can be made of hydrophilic silicon dioxide or ceramic metal oxides such as titanium dioxide and zirconium oxide, the oil-water separation membrane 2 containing the components has very good hydrophilic performance, but is oleophobic to oil, the processing technology is mature, harmful substances cannot be generated due to decomposition when the oil-water separation membrane is heated in the cooking process, and the health of consumers is facilitated.
Of course, the composition of the hydrophilic oil-repellent film 21 is not limited to the above range, and may be adjusted as needed in an actual production process.
In other embodiments of the present invention, the oil-water separation membrane 2 is a hydrophobic oleophilic membrane 22, as shown in fig. 2, 4 and 5.
The oil-water separation membrane 2 is a hydrophobic lipophilic membrane 22 and is characterized by oleophylic and hydrophobic properties, namely: exhibits affinity for oil and non-affinity for water 311, the oil contact angle is in the range of 0 ° to 90 ° and the water contact angle is in the range of greater than 90 ° and equal to or less than 180 °. Since the hydrophobic lipophilic film 22 has diametrically opposite affinities for oil and water 311, oil can be induced to selectively pass through the permeation pores of the oil-water separation film 2, while water 311 cannot pass through the permeation pores of the oil-water separation film 2, so that the grease 312 is separated, and oil-water separation is realized.
Further, in the range of 0 ℃ to 110 ℃, the oil contact angle of the hydrophobic oleophilic film 22 is in the range of 1 ° to 50 °.
Further, in the range of 80 ℃ to 100 ℃, the oil contact angle of the hydrophobic oleophilic film 22 is in the range of 1 ° to 50 °.
In the process of cooking food, the temperature of the liquid 31 in the container 3 is generally in the range of 0 ℃ to 110 ℃, such as 0 ℃, 10 ℃, 20 ℃, 30 ℃, 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃ and the like, so that the oil contact angle of the hydrophobic oleophilic film 22 in the temperature range is limited in the range of 1-50 ℃, such as 1 °, 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 ° and the like, and the hydrophobic oleophilic film 22 is ensured to have very good oleophilic performance, thereby being beneficial to the grease 312 to rapidly and smoothly pass through the permeation hole of the hydrophobic oleophilic film 22, and being beneficial to rapidly realizing oil-water separation. The temperature at which the broth boils is typically in the range of 80 ℃ to 100 ℃, thus further defining the oil contact angle of the hydrophobic oleophilic film 22 in this temperature interval in the range of 1 ° to 50 °.
Of course, the oil contact angle of the hydrophobic oleophilic film 22 in the above temperature range is not limited to the above range, and can be adjusted as required in the actual production process, such as 55 °, 60 °, and the like.
Wherein the pore diameter of the penetration hole of the hydrophobic lipophilic film 22 is in the range of 0.02mm to 0.15 mm.
The aperture (diameter) of the penetration hole of the hydrophobic oleophilic film 22 is limited within the range of 0.02mm to 0.15mm, such as 0.02mm, 0.04mm, 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.12mm, 0.15mm and the like, so that the problem that the preparation process of the hydrophobic oleophilic film 22 is too complicated due to too small aperture is avoided, the production cost is reduced, the oil 312 can pass through quickly to improve the oil filtering efficiency, the problem that the oil-water separation effect is influenced due to the penetration of part of water 311 due to too large aperture is avoided, and the oil-water separation effect can be better under the impact action of boiling soup.
Of course, the pore diameter of the penetration hole of the hydrophobic lipophilic film 22 is not limited to the above range, and may be adjusted as needed in the actual production process, such as 0.18mm, 0.2mm, etc.
Further, the oil contact angle of the hydrophobic oleophilic film 22 and the pore diameter of the permeation hole are limited within the above range, which can improve the oleophilic property of the hydrophobic oleophilic film 22, enable oil to pass quickly, and avoid or reduce the permeation of part of water.
Specifically, the ingredient of the hydrophobic lipophilic film 22 includes a hydrophobic polyfluoro polymer or a hydrophobic polysilane-based polymer.
The hydrophobic lipophilic film 22 may include hydrophobic polyfluoro polymer or hydrophobic polysiloxane polymer, and the oil-water separation film 2 containing the hydrophobic polyfluoro polymer or hydrophobic polysiloxane polymer has good lipophilic property, is hydrophobic to water 311, has mature processing technology, does not decompose to generate harmful substances when heated in the cooking process, and is beneficial to the health of consumers.
Of course, the composition of the hydrophobic lipophilic film 22 is not limited to the above range, and may be adjusted as needed in an actual production process.
In one embodiment of the invention, the oil-water separation membrane 2 is attached to the solid skeleton 1.
The oil-water separation membrane 2 can be connected with the solid framework 1 by adopting a pasting process, namely: respectively processing the solid framework 1 and the oil-water separation membrane 2, and then attaching the oil-water separation membrane 2 on the solid framework 1 to ensure that the oil-water separation membrane 2 covers the hollow part of the solid framework 1. The scheme is convenient for reasonably selecting the components and the forming process of the oil-water separation membrane 2 according to the requirement.
In another embodiment of the invention, the oil-water separation membrane 2 is sprayed on the solid skeleton 1.
The oil-water separation membrane 2 can also adopt a spraying mode, so that the hollow part of the solid framework 1 is covered by the oil-water separation membrane 2 formed by coating. This scheme makes oil water separating membrane 2 closely link to each other with entity skeleton 1, is favorable to improving the joint strength of oil water separating membrane 2 and entity skeleton 1 to improve the use reliability of oil strain utensil.
In another embodiment of the present invention, the oil-water separation membrane 2 is prepared on the solid skeleton 1 by a liquid-phase self-assembly process.
Self-assembly refers to a technique in which basic building blocks (molecules, nanomaterials, substances of micron or larger scale) spontaneously form ordered structures. During the self-assembly process, the basic building blocks spontaneously organize or aggregate into a stable structure with a certain regular geometric appearance under the interaction based on non-covalent bonds. Most of the studies of self-assembled systems are carried out in solution, namely: and (4) liquid phase self-assembly. Therefore, the solid skeleton 1 can be placed in the liquid phase for preparing the oil-water separation membrane 2, and the substance in the solution will spontaneously form the oil-water separation membrane 2 and cover the hollow part of the solid skeleton 1, namely: the oil-water separation membrane 2 is prepared on the solid framework 1 by adopting a liquid-phase self-assembly process. The scheme is simple and easy to implement and is suitable for popularization.
Of course, the preparation process of the oil filtering apparatus is not limited to the above manner, and can be adjusted as required in the actual production process.
In some embodiments of the present invention, the oil-water separation membrane 2 and the solid skeleton 1 form an oil-water separation surface, the oil-water separation membrane 2 is adapted to separate the grease 312 and the water 311 on two sides of the oil-water separation surface, and an area of the hollow portion accounts for 10% to 50% of an area of the oil-water separation surface.
The oil-water separation membrane 2 and the solid skeleton 1 form an oil-water separation surface, and in the using process, the oil-water separation membrane 2 induces the grease 312 or the water 311 to penetrate through the penetration holes, so that the grease 312 and the water 311 are separated on two sides of the oil-water separation membrane 2, and meanwhile, the grease 312 and the water 311 are separated on two sides of the oil-water separation surface.
The proportion of the area of the hollow part to the area of the oil-water separation surface is limited in the range of 10-50%, such as 10%, 20%, 30%, 40%, 50% and the like, so that the oil filtering efficiency is low due to too few hollow parts, the oil filtering efficiency of an oil filtering appliance is improved, the strength of the oil filtering appliance is low due to too many hollow parts, the use reliability of the oil filtering appliance is improved, the impact force of boiling soup on the oil-water separation membrane 2 on the hollow part is reduced, and the combination strength and the service life of the oil-water separation membrane 2 are ensured.
Of course, the ratio of the area of the hollow portion to the area of the oil-water separation surface is not limited to the above range, and can be adjusted as required in the actual production process.
In some embodiments of the present invention, the solid skeleton 1 is a metal, glass, ceramic or polymer member.
The solid skeleton 1 may be, but is not limited to, a metal member, a glass member, a ceramic member, or a polymer member. The metal piece, the glass piece and the ceramic piece have good temperature resistance and corrosion resistance, and no harmful substance is generated when the metal piece, the glass piece and the ceramic piece are heated in the cooking process, so that the health of consumers is facilitated. The polymer can be processed into various shapes according to requirements, and is favorable for reducing the weight of an oil filter appliance and reducing the production cost of products.
Further, for the scheme that the oil-water separation membrane 2 is the hydrophilic oleophobic membrane 21, the entity framework 1 adopts a metal piece, a glass piece or a ceramic piece, so that the microstructure of the oil-water separation membrane 2 is close to that of the entity framework 1, the bonding strength between the hydrophilic oleophobic membrane 21 and the entity framework 1 is favorably improved, and the use reliability of the oil filtering apparatus is improved.
For the scheme that the oil-water separation membrane 2 is the hydrophobic lipophilic film 22, the solid framework 1 is made of polymer, so that the microstructure of the oil-water separation membrane 2 is close to that of the solid framework 1, the bonding strength of the hydrophobic lipophilic film 22 and the solid framework 1 is improved, and the use reliability of the oil filtering apparatus is improved.
In some embodiments of the present invention, further, the solid skeleton 1 encloses a containing cavity 11, as shown in fig. 2 to 5. The hollow-out part is arranged on the side wall 111 and/or the bottom wall 112 of the accommodating cavity 11.
The solid framework 1 is enclosed with the accommodating cavity 11, so that the oil filtering device has the function of accommodating materials such as food materials 32 and oil-water mixtures, the oil filtering device is convenient to store the grease 312 or the water 311 in the accommodating cavity 11 after separating the grease 312, and the grease 312 or the water 311 is prevented from leaking from the oil filtering device. In this case, the oil-water separation surface is an inner wall surface of the accommodation chamber 11.
Specifically, the hollow portion may be only disposed on the side wall 111 of the accommodating chamber 11, or only disposed on the bottom wall 112 of the accommodating chamber 11, which is beneficial to reducing the number of the hollow portions, facilitating cleaning, reducing the size of the oil-water separation membrane 2, and reducing the production cost. The hollowed-out portion may also be provided on the bottom wall 112 and the side wall 111 of the accommodating chamber 11 at the same time, which is beneficial to improve the oil filtering efficiency.
Moreover, when the sidewall 111 of the accommodating cavity 11 is provided with the hollow portion, the hollow portion may be only disposed in a certain area of the sidewall 111, such as the middle portion of the sidewall 111, as shown in fig. 4 and 5, which is beneficial to further reducing the number of the hollow portions, facilitating the cleaning, further reducing the size of the oil-water separation membrane 2, and reducing the production cost. The hollowed-out portions may also be disposed in the whole area of the side wall 111, for example, the hollowed-out portions are uniformly disposed on the upper portion, the middle portion, and the lower portion of the side wall 111, as shown in fig. 2 and fig. 3, which is beneficial to improving the oil filtering efficiency.
Similarly, when the bottom wall 112 of the accommodating cavity 11 is provided with the hollow portion, the hollow portion may be only arranged in a certain area of the bottom wall 112, such as the middle portion of the bottom wall 112, which is beneficial to further reducing the number of the hollow portions, is convenient for cleaning, and is also beneficial to further reducing the size of the oil-water separation membrane 2, and is beneficial to reducing the production cost. The cutout may also be provided in the entire area of the bottom wall 112, as shown in fig. 1, which is advantageous for increasing the oil filtering efficiency.
Of course, the solid framework 1 may also be flat, and may be formed into a shape similar to a steaming grid or a grate, and the oil filter apparatus with such a design may be placed in the container 3, so as to achieve the purpose of oil-water separation, and also fall within the protection scope of the present invention. In this case, the oil-water separation surface is the area of the surface surrounded by the outer periphery of the solid skeleton 1.
In an embodiment of the present invention, further, a liquid level line 12 is disposed on the sidewall 111 of the accommodating chamber 11, as shown in fig. 4 and 5, the hollow portion is located on the upper side of the liquid level line 12.
A level line 12 is provided on the side wall 111 of the receiving chamber 11, which level line 12 defines the maximum level of the liquid 31 in the container 3 which is engaged by the oil filter apparatus in the use state, namely: when the oil filter apparatus is assembled with the container 3, the level of the liquid 31 added to the container 3 cannot exceed the level line 12 of the oil filter apparatus. If the hollow portion is provided above the liquid level line 12, the grease 312 or the water 311 can pass through the oil-water separation membrane 2 only from the upper side of the liquid level line 12, thereby achieving oil-water separation. And the part below the liquid level line 12 is formed as a storage chamber 113 for storing the liquid 31 in the accommodating chamber 11, which cannot pass through the oil-water separation membrane 2, which is beneficial to preventing the residual liquid phase separated in the accommodating chamber 11 from blocking the permeation hole of the oil-water separation membrane 2 and reducing the oil filtering efficiency. In addition, the scheme also reduces the range of the hollow part, facilitates the cleaning of an oil filter appliance, correspondingly reduces the size of the oil-water separation membrane 2 and is beneficial to reducing the product cost.
Further, in the case of the oil-water separation membrane 2 adopting the hydrophobic oleophilic membrane 22, at least a part of the oil filtering device may be suspended in the heating container 3, the food 32 and the water 311 are placed in the heating container 3, and the liquid level is below the oil filtering device before the liquid 31 in the heating container 3 boils, as shown in fig. 4.
During the heating of the food material 32, the grease 312 in the food is gradually dispersed in the water 311 and floats up to the liquid surface. In the boiling state, the grease 312 floating on the upper layer forms a certain tidal rolling phenomenon with the water 311, and as shown in fig. 5, the rolling grease 312 and the water 311 repeatedly wash the oil-water separation membrane 2. Due to the oleophilic and hydrophobic properties of the hydrophobic oleophilic film 22, grease 312 may pass through the hydrophobic oleophilic film 22 into the receiving chamber 11, while water 311 is kept out and returned to the liquid phase in the container 3, thereby separating excess grease 312 during cooking.
And, establish the fretwork portion in the upside of liquid level line 12 for oil water separating membrane 2 is not contact with liquid 31 when the liquid level is static, and receives the contact of washing away repeatedly of oil water mixture when boiling, and such structural design is favorable to improving oil strain efficiency, reduces the fretwork portion quantity in the part simultaneously, convenient washing. If the oil-water separation membrane 2 is directly immersed below the liquid surface, the probability that the grease 312 floating on the water surface contacts the oil-water separation membrane 2 is rather reduced, and there is a risk of water seepage. At the same time, this design makes the filtered grease 312 not hinder further filtering process, because the filtered grease 312 will flow into the bottom of the oil filter apparatus with gravity, thus keeping the smoothness of the permeation hole of the oil-water separation membrane 2.
In some technical solutions of the present invention, the hollow portion further includes a plurality of flow holes arranged at intervals, the oil-water separation membrane 2 covers the flow holes, and the flow holes have a plurality of penetration holes therein.
The hollow part is provided with a plurality of circulation holes which are arranged at intervals, and the circulation holes are covered by the oil-water separation membrane 2, so that a plurality of penetration holes of the oil-water separation membrane 2 are arranged in the circulation holes. The impact of the boiled soup on the oil-water separation membrane 2 can be dispersed, so that the damage to the oil-water separation membrane 2 is reduced; and the boiled soup can be dispersed and contacted with the oil-water separation membrane 2, so that the water or oil in the soup can be dispersed and infiltrated into the penetration holes, thereby improving the water/oil penetration capability and the utilization rate of the oil-water separation membrane 2. Meanwhile, compared with the method that the oil-water separation membrane 2 directly covers the whole hollow part, the solid framework 1 with the plurality of flow holes arranged at intervals can provide larger supporting force for the oil-water separation membrane 2, so that the use reliability of the oil-water separation membrane 2 is improved, and the service life of the oil-water separation membrane 2 is prolonged.
In some embodiments of the invention, the skeleton 1 is further provided with a support (not shown) for cooperating with the container 3 to support the oil filtering apparatus by the container 3.
The solid framework 1 is provided with a supporting part which can be matched with the container 3, so that the oil filtering appliance can be supported by the container 3, and the assembly and matching of the oil filtering appliance and the container 3 are realized. Wherein, the supporting portion can be, but is not limited to: the supporting device comprises an annular supporting edge, a plurality of supporting lugs arranged at intervals along the circumferential direction of the solid framework 1, supporting blocks arranged at the bottom of the solid framework 1 and the like. The supporting edge and the supporting lug can be in supporting fit with the upper edge of the container 3 or supporting fit with a supporting step arranged on the inner side wall of the container 3; the support block may be in direct supporting engagement with the bottom wall 112 of the container 3.
In some embodiments of the invention, further, the solid skeleton 1 is provided with a hanging portion (not shown in the figures) for cooperating with the container 3 to at least partially suspend the oil filter device in the container 3.
The solid framework 1 is provided with a hanging part which can be matched with the container 3, so that the oil filtering apparatus can be at least partially hung in the container 3, and the assembly matching of the oil filtering apparatus and the container 3 is realized. Wherein, the hanging part can be but is not limited to: a plurality of couples or hangers that the circumference interval of edge entity skeleton 1 set up cooperate with the last border hook of container 3, perhaps cooperate with the hanging hole hook that sets up on the container 3.
An embodiment of the second aspect of the present invention provides a cooking appliance, as shown in fig. 2 to 5, including: a container 3 and an oil filtering apparatus as in any of the embodiments of the first aspect. Wherein the oil filtering apparatus is configured to be at least partly adapted to be placed inside the container 3.
The cooking appliance provided by the embodiment of the second aspect of the invention comprises the oil filter appliance of any one of the embodiments of the first aspect, so that all the beneficial effects of any one of the embodiments are achieved, and the description is omitted.
Wherein the oil filtering apparatus may be located entirely within the container 3 as shown in figures 2 to 5. The oil filtering apparatus may also be located partly within the vessel 3, for example with the oil filtering apparatus being located in the vessel 3 in the middle and lower part and above the vessel 3.
In particular, support steps may be provided inside the container 3, such as: the annular step or a plurality of point-like steps arranged at intervals in the circumferential direction of the container 3 are in supporting fit with the support part of the oil filtering appliance.
Further, during use, the food material 32 may be placed in the container 3 (as shown in fig. 2, 4 and 5) or on the oil filtering appliance (as shown in fig. 3) as desired.
In the above embodiment, the container 3 is the heating container 3.
In the above embodiments, the cooking appliance may be, but is not limited to: the container 3 is correspondingly an inner pot of the electric cooker, an inner pot of the electric pressure cooker, a pot body of the saucepan, a pot body of the steamer, a cup body of the soybean milk maker, a pot body of the saucepan and the like.
Some embodiments are described below with reference to the accompanying drawings.
An oil filter device capable of filtering oil, which is an inner sleeve of a heating container 3 and can be suspended inside the heating container 3, and the overall size of the oil filter device varies depending on the size of the heating container 3, without limitation.
The oil filter appliance comprises an entity framework 1 and an oil-water separation (permeation) membrane.
The solid framework 1 is made of structural materials such as metal, glass, ceramics or polymers and the like, and has a certain hollow structure, and the area of the hollow part accounts for 10% -50% of the inner surface of the appliance.
The oil-water separation membrane 2 covers the hollow part in the solid framework 1. The oil-water separation membrane 2 is a hydrophilic oleophobic membrane 21 or a hydrophobic oleophilic membrane 22. The food material 32 is placed at different positions, and in the cooking process, the grease 312 penetrates through one side of the hydrophobic oleophilic film 22 or is isolated at one side of the hydrophilic oleophobic film 21, so that the purpose of oil-water separation is achieved.
For a cooking scene, in the oil-water separation membrane 2, the water contact angle of the hydrophilic oleophobic membrane 21 material is 0.5-30 degrees within the range of 0-110 ℃, and the aperture of the penetration hole is 0.01-0.1 mm; the oil contact angle of the hydrophobic lipophilic film 22 material is 1-50 degrees, and the aperture of the penetration hole is 0.02-0.15 mm.
The preparation method of the oil-water separation membrane 2 can be obtained by sticking, spraying, liquid-phase self-assembly and the like on the solid framework 1. The main component of the material can be hydrophilic ceramic metal oxide such as titanium dioxide, silicon dioxide or zirconium oxide, or hydrophobic polyfluoro or polysilane polymer.
Specific example 1:
an oil filtering device, as shown in fig. 2, comprises a solid framework 1 and a hydrophobic oleophilic film 22, wherein the solid framework 1 is provided with a hollow-out part, and the hydrophobic oleophilic film 22 covers the hollow-out part. The solid framework 1 encloses a containing cavity 11. Wherein, the area occupied by the hollow part accounts for 20% of the area of the inner surface of the oil filtering appliance, and the solid framework 1 is made of 304 stainless steel. Polytetrafluoroethylene is self-assembled on the framework through a liquid phase to form a hydrophobic oleophilic film 22 with an oil contact angle of 20 degrees and an average pore diameter of 0.05mm, and the hydrophobic oleophilic film covers the hollow part.
The oil filter apparatus is suspended in the heating vessel 3. The food material 32 is in the liquid phase, on the underside (or outside) of the oil filter appliance. The oil-water mixture that occurs during cooking will reach under the oil filter under the heat flow, and under the action of the oil-water separation membrane 2, the oil will pass through the oil filter to the upper side (or inner side) of the oil filter, while the water 311 is isolated at the lower side (or outer side) of the oil filter, achieving the purpose of removing the grease 312 during cooking.
Specific example 2:
an oil filtering device, as shown in fig. 3, comprises a solid skeleton 1 and a hydrophilic oleophobic membrane 21, wherein the solid skeleton 1 is provided with a hollow part, and the hydrophilic oleophobic membrane 21 covers the hollow part. The solid framework 1 encloses a containing cavity 11. Wherein, the area occupied by the hollow part accounts for 10 percent of the area of the inner surface of the oil filtering appliance and is made of zirconia ceramics. And spraying a silicon dioxide-doped polyester material on the framework through a liquid phase to form a hydrophilic oleophobic membrane 21 with a water contact angle of 5 degrees and an average pore diameter of 0.05mm, and covering the hollow part.
The oil filter apparatus is suspended in the heating vessel 3. The food material 32 is in the liquid phase, on the upper side (or inner side) of the oil filter appliance. Oil-water mixture generated in the cooking process repeatedly flushes the oil filtering appliance under the heat flow, under the action of the hydrophilic oleophobic membrane 21, water 311 can carry substances released by food materials and dissolved in the water to the lower side (or the outer side) of the oil filtering appliance through the assembly, oil is isolated at the upper side (or the inner side), the purpose of removing the grease 312 in the cooking process is achieved, and soup obtained in the container is filtered by the grease, and the soup is eaten by consumers.
In other words, the oil and fat released from the food material cannot pass through the hydrophilic and oleophobic membrane 21, and other water-soluble substances released from the food material can pass through the hydrophilic and oleophobic membrane 21, so that soup with oil and fat filtered is obtained in the container.
Specific example 3:
an oil filtering device, as shown in fig. 4 and 5, comprises a solid framework 1 and a hydrophobic oleophilic oil film 22, wherein the solid framework 1 is provided with a hollow-out part, and the hydrophobic oleophilic oil film 22 covers the hollow-out part. The solid framework 1 encloses a containing cavity 11. In other words, the solid skeleton 1 is partially perforated, and the positions of the through holes are subjected to local spraying or self-assembly or other physical and chemical treatment to form oleophylic hydrophobic layer substances (i.e. oleophylic hydrophobic films) coating the inner and outer surfaces of the through holes, so as to form an oil filtering channel. The oil filtering channel has the characteristics of oleophylicity and hydrophobicity, the oil contact angle is 0-90 degrees, and the water contact angle is 100-180 degrees. The solid skeleton 1 has a highest water level line (i.e. a liquid level line 12), and the oil filtering channel is positioned above the line. Below the highest water level is the reservoir (i.e., oil reservoir) for storing the filtered grease 312.
During the heating of the food material 32, the grease 312 in the food will gradually disperse in the water 311. In the boiling state, the grease 312 floating on the water layer will form a certain tidal rolling phenomenon with the water 311. The tumbling grease 312 and water 311 will repeatedly flush the oil filter passage for which the oil filter appliance is designed. Because the inner and outer surfaces of the channel have oleophilic and hydrophobic characteristics, the grease 312 can reach the bottom of the oil filtering appliance through the channel; while the water 311 will be kept out and returned to the liquid phase of the container 3, thereby separating excess grease 312 during cooking.
The oil filter channel is designed above the highest possible level of water that can be added to the vessel 3, and does not contact the liquid 31 when the bottom surface level is static, but repeatedly flushes contact when it boils. The structural design aims to increase the oil filtering efficiency, reduce the number of oil filtering channels in the component and facilitate cleaning. If the oil filter passage is immersed directly below the surface of the liquid, the chance of grease 312 floating above the water contacting the passage is reduced and there is a risk of water seepage. At the same time, this design allows the filtered grease 312 to not impede further filtration because the filtered grease 312 will flow by gravity into the bottom of the component, thereby maintaining the smoothness of the oil filter passage.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present specification, the description of "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An oil filtering apparatus, comprising:
the solid framework is provided with a hollow part;
the oil-water separation membrane covers the hollow part and is provided with a penetration hole, and grease or water in the oil-water mixture passes through the penetration hole so as to be separated on two sides of the oil-water separation membrane;
the hollow part comprises a plurality of flow holes arranged at intervals, the oil-water separation film covers the flow holes, and the flow holes are provided with a plurality of permeation holes.
2. An oil filtering apparatus according to claim 1,
the oil-water separation membrane is a hydrophilic oleophobic membrane.
3. An oil filtering apparatus according to claim 2,
in the range of 0 ℃ to 110 ℃, the water contact angle of the hydrophilic oleophobic membrane is in the range of 0.5 DEG to 30 DEG; and/or
The pore diameter of the permeation pore of the hydrophilic oleophobic membrane is in the range of 0.01mm to 0.1 mm; and/or
The hydrophilic oleophobic membrane comprises hydrophilic silicon dioxide or hydrophilic ceramic metal oxide.
4. An oil filter apparatus according to claim 1,
the oil-water separation membrane is a hydrophobic lipophilic membrane.
5. An oil filtering apparatus according to claim 4,
(ii) the oil contact angle of the hydrophobic oleophilic film is in the range of 1 ° to 50 ° in the range of 0 ℃ to 110 ℃; and/or
The aperture of the penetration hole of the hydrophobic lipophilic film is in the range of 0.02mm to 0.15 mm; and/or
The hydrophobic lipophilic film comprises hydrophobic polyfluoro polymer or hydrophobic polysilane polymer.
6. An oil filter appliance according to any one of the claims 1 to 5,
the oil-water separation membrane is attached to the solid framework; or
The oil-water separation membrane is sprayed on the solid framework; or alternatively
The oil-water separation membrane is prepared on the solid framework by adopting a liquid-phase self-assembly process.
7. An oil filtering apparatus according to any one of claims 1 to 5,
the oil-water separation membrane and the entity skeleton form an oil-water separation surface, the oil-water separation membrane is suitable for separating grease and water on two sides of the oil-water separation surface, and the area of the hollow part accounts for 10-50% of the area of the oil-water separation surface.
8. An oil filtering apparatus according to any one of claims 1 to 5,
the solid framework is a metal piece, a glass piece, a ceramic piece or a polymer piece.
9. An oil filtering apparatus according to any one of claims 1 to 5,
the solid framework is enclosed to form a containing cavity, and the hollow part is arranged on the side wall and/or the bottom wall of the containing cavity.
10. An oil filtering apparatus according to claim 9,
and a liquid level line is arranged on the side wall of the accommodating cavity, and the hollow part is positioned on the upper side of the liquid level line.
11. An oil filtering apparatus according to any one of claims 1 to 5,
the solid framework is provided with a supporting part, and the supporting part is used for being matched with a container so that the oil filtering appliance is supported by the container; and/or
The solid framework is provided with a hanging part which is used for being matched with a container so that the oil filtering apparatus is at least partially hung in the container.
12. A cooking appliance, comprising:
a container; and
an oil filtering apparatus as claimed in any of claims 1 to 11 configured to be at least partially adapted for placement within the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010216847.9A CN113440011B (en) | 2020-03-25 | 2020-03-25 | Oil filter utensil and cooking utensil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010216847.9A CN113440011B (en) | 2020-03-25 | 2020-03-25 | Oil filter utensil and cooking utensil |
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| CN113440011B true CN113440011B (en) | 2022-05-17 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5247878A (en) * | 1992-01-03 | 1993-09-28 | Anderson William H | Device for absorbing liquid lipids from an aqueous food mixture |
| CN201668261U (en) * | 2010-02-11 | 2010-12-15 | 范纲峻 | Oil-soup separation pot |
| JP5627909B2 (en) * | 2010-03-25 | 2014-11-19 | 秀順 鹿野 | Cooking oil deterioration prevention tool and cooking method |
| CN202043984U (en) * | 2011-04-18 | 2011-11-23 | 门立雷 | Oil-control bowl |
| ES2570877B1 (en) * | 2014-11-17 | 2017-03-03 | Bonesil Expansion, S.L. | Procedure of elaboration and conservation of olive paste |
| JP2017018280A (en) * | 2015-07-09 | 2017-01-26 | 谷電機工業株式会社 | Constitution of food frying device oil tank |
| CN204982827U (en) * | 2015-08-16 | 2016-01-20 | 大连理工大学 | Self -adjusting unpowered oil skimming ware of gesture |
| TWM543653U (en) * | 2017-01-19 | 2017-06-21 | Chung Chou Univ Of Science And Tech | Low pressure filter |
| CN209153124U (en) * | 2018-09-26 | 2019-07-26 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking utensil |
| CN112971537B (en) * | 2019-12-17 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Cooking utensil and oil filter device |
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