阅读说明：本技术 一种超声波雾化浓缩装置 (Ultrasonic atomization concentration device ) 是由 张志昂 于 2021-09-28 设计创作，主要内容包括：一种超声波雾化浓缩装置,属于制药装置技术领域。本发明包括外壳体、超声波雾化片、除雾器和一级分离罩,外壳体内上下分别为分离腔和雾化腔,雾化腔和分离腔通过一级分离罩连通,分离腔底部与雾化腔连通,雾化腔内部设有超声波雾化片,分离腔顶部设置有除雾器,待浓缩液体置于雾化腔内。本发明研发目的是为了解决液体浓缩的问题,本发明通过超声波雾化片,利用水雾和药液自身重力质量进行物理分离,不破坏药液自身组成成分和药性,分离效果更好。(An ultrasonic atomization concentration device belongs to the technical field of pharmaceutical devices. The invention comprises an outer shell, an ultrasonic atomization sheet, a demister and a primary separation cover, wherein a separation cavity and an atomization cavity are respectively arranged at the upper part and the lower part in the outer shell, the atomization cavity and the separation cavity are communicated through the primary separation cover, the bottom of the separation cavity is communicated with the atomization cavity, the ultrasonic atomization sheet is arranged in the atomization cavity, the demister is arranged at the top of the separation cavity, and a liquid to be concentrated is placed in the atomization cavity. The invention aims to solve the problem of liquid concentration, and the invention uses the self gravity mass of water mist and liquid medicine to carry out physical separation through the ultrasonic atomization sheet, so that the self composition and the medicine property of the liquid medicine are not damaged, and the separation effect is better.)

1. An ultrasonic atomization enrichment facility which characterized in that: the atomizing device comprises an outer shell (1), atomizing sheets (2), a demister (3) and a primary separation cover (4), wherein a separation chamber (12) and an atomizing chamber (11) are arranged in the outer shell (1) from top to bottom respectively, the bottom of the separation chamber (12) is communicated with the atomizing chamber (11), the primary separation cover (4) is arranged at the joint of the atomizing chamber (11) and the separation chamber (12), the atomizing sheets (2) are arranged in the atomizing chamber (11), the demister (3) is arranged at the top of the separation chamber (12), and concentrated liquid is arranged in the atomizing chamber (11).

2. The ultrasonic atomization and concentration device of claim 2, wherein: the one-level separation cover (4) is an umbrella-shaped cover, the one-level separation cover (4) covers the bottom of the separation cavity (12), a one-level through hole (41) is formed between the one-level separation cover (4) and the separation cavity (12), the top of the atomization cavity (11) is provided with a sharp opening (11-1), and the sharp opening (11-1) is arranged inside the one-level separation cover (4).

3. An ultrasonic atomizing concentrator as set forth in claim 1 or 2, wherein: the atomization cavity (11) is divided into a liquid reaction chamber (111) and an air chamber (112), an ultrasonic atomization sheet (2) is arranged in the liquid reaction chamber (111), liquid to be concentrated is placed in the liquid reaction chamber (111), a fan (5) is arranged in the air chamber (112), an air inlet (1121) communicated with the outside is processed at the bottom of the air chamber (112), and an air outlet (1122) communicated with the liquid reaction chamber (111) is processed at the top of the air chamber (112).

4. The ultrasonic atomization and concentration device of claim 3, wherein: the position of the air outlet (1122) is higher than the highest liquid level of the liquid to be concentrated in the liquid reaction chamber (111);

the separation chamber (12) is of a spherical cavity structure, and the bottom of the separation chamber (12) is communicated with the atomization chamber (11) through the guide pipe (6).

5. The ultrasonic atomization and concentration device of claim 4, wherein: the novel separation device is characterized by further comprising a secondary separation group (7) in the middle of the separation cavity (12), wherein the secondary separation group (7) comprises a separation interlayer (71) and a secondary separation cover (72), the separation interlayer (71) divides the separation cavity (12) into an upper part and a lower part of a secondary separation chamber (121) and a primary separation chamber (122), a steam inlet (711) and a secondary flow guide port (712) are processed on the separation interlayer (71), and the secondary separation cover (72) is arranged at the tops of the steam inlet (711) and the secondary flow guide port (712) of the separation interlayer (71).

6. The ultrasonic atomization and concentration device of claim 5, wherein: the second-stage separation cover (72) is an umbrella-shaped cover, the second-stage flow guide opening (712) is formed in the inner side of the second-stage separation cover (72), and a second-stage through hole (721) is formed between the second-stage separation cover (72) and the separation interlayer (71).

7. The ultrasonic atomization and concentration device of claim 6, wherein: the middle part of the separation interlayer (71) is provided with a sharp opening part (71-1), the top end of the sharp opening part (71-1) is arranged in the secondary separation cover (72), and the periphery of the separation interlayer (71) is sunken towards the sharp opening part (71-1) in the middle part.

8. The ultrasonic atomization and concentration device of claim 7, wherein: still include atomizing baffle (8), atomizing baffle (8) set up in atomizing chamber (11) top opening part through spliced pole (81).

9. The ultrasonic atomization and concentration device of claim 3, wherein: the ultrasonic atomization device is characterized by further comprising an operation control panel (9), wherein the operation control panel (9) is electrically connected with the ultrasonic atomization sheet (2) and the fan (5) respectively.

10. An ultrasonic atomization concentration method is realized based on the ultrasonic atomization concentration device of claim 8, and is characterized in that:

step 1, atomizing a liquid to be concentrated into water mist through an atomizing sheet (2), enabling the water mist to enter a separation cavity (12), wherein the small molecular water mist in the water mist passes through a primary separation cover (4) and is discharged from a demister (3) at the top of the separation cavity (12), and the large molecular water mist falls after gathering into water drops at the bottom of the primary separation cover (4) and flows back to an atomizing cavity (11) from the bottom of the separation cavity (12);

and 2, discharging one part of the small molecular water mist from a demister (3) at the top of the separation cavity (12) after passing through the separation partition layer (71) and the secondary separation cover (72), and enabling the other part of the small molecular water mist to fall after gathering into water drops at the bottom of the secondary separation cover (72), flow into the primary separation chamber (122) from the secondary flow guide port (712) and finally flow back to the atomization cavity (11).

Technical Field

The invention relates to a liquid concentration device, and belongs to the technical field of pharmaceutical devices.

Background

The traditional industrial concentration technology is evaporation concentration, reverse osmosis concentration, adsorption separation concentration, ultrafiltration concentration and nanofiltration concentration, and when the concentration technology is applied to liquid medicine concentration, a plurality of problems exist, and the method specifically comprises the following steps:

and (3) evaporation and concentration: particularly, water vapor is evaporated by high-temperature heating, but the components of a liquid to be concentrated are easily changed by the high temperature, particularly the pharmaceutical industry, the drug effect is easily influenced, and the liquid needs to be continuously stirred when the high temperature is higher, otherwise, the phenomenon of bottom pasting of a local liquid medicine can be generated;

reverse osmosis concentration: the method specifically comprises the steps that a solution enters a reverse osmosis membrane, solvent water molecules are seeped under the action of pressure, the purpose of concentration is achieved, however, reverse osmosis concentration is low in permeation efficiency of thick liquid, particularly in the pharmaceutical industry, different liquid medicines are different in thickness, the processing effect of reverse osmosis concentration is poor, the reverse osmosis membrane needs to be cleaned and replaced frequently, and the cost is high; the ultrafiltration concentration and the nanofiltration concentration are similar to the reverse osmosis concentration principle, and both need liquid to permeate a membrane to achieve the concentration purpose, and have the same problems;

adsorption separation and concentration: specifically, the solution relies on the medium to separate out substances and liquid, but in the pharmaceutical industry, the components of different liquid medicines are different, the material of the required intermediate medium is different, a large number of experiments are required to be consumed by the separation method to match the experiments, and the intermediate medium needs to be replaced in time, so that the separation method is high in cost, time-consuming and labor-consuming.

Therefore, it is desirable to provide a novel ultrasonic atomization and concentration device to solve the above-mentioned technical problems.

Disclosure of Invention

The present invention has been developed in order to solve the problems of achieving a better concentration effect in a very short time without affecting and destroying the own composition and properties of a liquid medicine to be concentrated, and a brief summary of the present invention is given below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.

The technical scheme of the invention is as follows:

the utility model provides an ultrasonic atomization enrichment facility, includes shell body, atomizing piece, defroster and one-level separation cover, is separating chamber and atomizing chamber respectively from top to bottom in the shell body, and atomizing chamber and separating chamber pass through one-level separation cover intercommunication, and separating chamber bottom and atomizing chamber intercommunication, atomizing intracavity portion are equipped with the atomizing piece, and the separating chamber top is provided with the defroster, treats concentrated liquid and arranges the atomizing intracavity in.

Preferably: the first-stage separation cover is an umbrella-shaped cover, the first-stage separation cover covers the bottom of the separation cavity, a first-stage through hole is formed between the first-stage separation cover and the separation cavity, a sharp opening is formed in the top of the atomization cavity, and the sharp opening is arranged inside the first-stage separation cover.

An ultrasonic atomization concentration method is realized based on an ultrasonic atomization concentration device, and is characterized in that:

step 1, scattering liquid water molecules in a liquid to be concentrated into elegant water mist through high-frequency resonance of an atomizing sheet, enabling the elegant water mist to enter a separation cavity, enabling small-molecule water mist in the water mist to pass through a primary separation cover and be discharged from a demister at the top of the separation cavity, enabling large-molecule water mist to fall after gathering into water drops at the bottom of the primary separation cover, and enabling the water drops to flow back to the atomizing cavity from a primary flow guide port at the bottom of the separation cavity;

and 2, allowing one part of the small molecular water mist to pass through the separation interlayer and the secondary separation cover and be discharged from a demister at the top of the separation cavity, and allowing the other part of the small molecular water mist to gather at the bottom of the secondary separation cover to form water drops and fall down, and flowing into the primary separation chamber from the secondary flow guide port and finally flowing back to the atomization cavity.

In order to solve the problem that the water mist in the auxiliary atomizing cavity smoothly enters the separating cavity, the invention provides the technical scheme that:

preferably: the atomization cavity is divided into a liquid reaction chamber and an air chamber, an ultrasonic atomization sheet is arranged in the liquid reaction chamber, liquid to be concentrated is placed in the liquid reaction chamber, a fan is installed in the air chamber, an air inlet communicated with the outside is formed in the bottom of the air chamber, and an air outlet communicated with the liquid reaction chamber is formed in the top of the air chamber.

Preferably: the air outlet is higher than the highest liquid level of the liquid to be concentrated in the liquid reaction chamber.

In order to solve the problem that liquid condensed in the separation cavity at the later stage flows back to the atomization cavity, the technical scheme is as follows:

preferably: the bottom of the separation cavity is communicated with the atomization cavity through a guide pipe.

In order to solve the problems that the primary classification of the liquid to be concentrated is insufficient and secondary separation is carried out, the invention provides the technical scheme that:

preferably: the separation chamber is of a spherical cavity structure, and a first-stage flow guide port at the bottom of the separation chamber is communicated with the atomization chamber through a flow guide pipe.

Preferably: the secondary separation group comprises a separation interlayer and a secondary separation cover, the separation interlayer divides the separation cavity into an upper part and a lower part of a secondary separation chamber and a primary separation chamber, a steam inlet and a secondary flow guide port are processed on the separation interlayer, and the secondary separation cover is arranged at the tops of the steam inlet and the secondary flow guide port of the separation interlayer.

Preferably: the second-stage separation cover is an umbrella-shaped cover, the second-stage flow guide opening is formed in the inner side of the second-stage separation cover, and a second-stage through hole is formed between the second-stage separation cover and the separation interlayer.

Preferably: the middle part of the separation interlayer is provided with a sharp opening part, the top end of the sharp opening part is arranged inside the secondary separation cover, and the periphery of the separation interlayer is sunken towards the sharp opening part at the middle part

In order to solve the problem of reducing the loss of main components when the liquid to be concentrated is concentrated, the invention provides the technical scheme that:

preferably: still include atomizing baffle, atomizing baffle sets up at atomizing chamber top opening part.

In order to solve the problems of the switch adjustment of the ultrasonic atomization sheet and the demister in the concentration device and the wind power adjustment of the fan, the invention provides the technical scheme that:

preferably: still include operation control panel, operation control panel respectively with ultrasonic atomization piece and fan electric connection.

The invention has the following beneficial effects:

1. according to the ultrasonic atomization concentration device, the water mist and the self-gravity mass of the liquid medicine are physically separated through the ultrasonic atomization sheet, so that the self-composition components and the medicine property of the liquid medicine are not damaged, and the separation effect is better;

2. compared with evaporation concentration, the ultrasonic atomization concentration device provided by the invention has the advantages that the concentration effect is good, long-term manual supervision is not needed, only concentration time is needed to be set according to the dosage, both hands are liberated, and time and labor are saved;

3. the invention relates to an ultrasonic atomization concentration device; compared with reverse osmosis concentration, adsorption separation concentration, ultrafiltration concentration and nanofiltration concentration, the membrane or an intermediate medium is not required to be replaced for a long time, so that the cost is saved, and the operation is simple;

4. the ultrasonic atomization concentration device is ingenious in design, convenient to disassemble and assemble, flexible in structure, changeable in size, high in concentration efficiency and suitable for popularization and application.

Drawings

FIG. 1 is a perspective view of an ultrasonic atomizing concentrator;

FIG. 2 is a front view of an ultrasonic atomizing concentrator;

FIG. 3 is a cross-sectional view of an ultrasonic atomizing concentrator;

FIG. 4 is a schematic diagram of a first embodiment;

FIG. 5 is a bottom view of an ultrasonic atomizing concentrator;

FIG. 6 is a cross-sectional view A-A of FIG. 2;

FIG. 7 is a schematic structural view of a second embodiment;

in the figure, 1-outer shell, 2-ultrasonic atomization sheet, 3-demister, 4-primary separation cover, 5-fan, 6-draft tube, 7-secondary separation group, 8-atomization baffle, 9-operation control panel, 11-atomization cavity, 12-separation cavity, 111-liquid reaction chamber, 112-air chamber, 121-secondary separation chamber, 122-primary separation chamber, 1121-air inlet, 1122-air outlet, 71-separation interlayer, 72-secondary separation cover, 711-steam inlet, 712-secondary flow guide port, 721-secondary through hole, 11-1-sharp opening, 41-primary through hole, 71-1-sharp opening and 81-connecting column.

Detailed Description

In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The connection mentioned in the invention is divided into fixed connection and detachable connection, the fixed connection is non-detachable connection and includes but is not limited to folding edge connection, rivet connection, bonding connection, welding connection and other conventional fixed connection modes, the detachable connection includes but is not limited to threaded connection, snap connection, pin connection, hinge connection and other conventional detachment modes, when the specific connection mode is not clearly limited, at least one connection mode can be found in the existing connection modes by default to realize the function, and the skilled person can select according to the needs. For example: the fixed connection selects welding connection, and the detachable connection selects hinge connection.

The first embodiment is as follows: the embodiment is described by combining fig. 1 to fig. 6, and the ultrasonic atomization concentration device of the embodiment comprises an outer shell 1, ultrasonic atomization pieces 2, a demister 3 and a primary separation cover 4, wherein a separation chamber 12 and an atomization chamber 11 are respectively arranged in the outer shell 1 from top to bottom, the atomization chamber 11 is communicated with the separation chamber 12 through the primary separation cover 4, the bottom of the separation chamber 12 is communicated with the atomization chamber 11, the ultrasonic atomization pieces 2 are arranged in the atomization chamber 11, the demister 3 is arranged at the top of the separation chamber 12, and a liquid to be concentrated is arranged in the atomization chamber 11.

Treat concentrated liquid and atomize into water smoke through ultrasonic atomization piece 2 and get into separation chamber 12, wherein the micromolecule water smoke in the water smoke passes one-level separation cover 4 and discharges from defroster 3 at 12 tops of separation chamber, and macromolecule water smoke falls after gathering into the drop of water in 4 bottoms of one-level separation cover, flows back to atomization chamber 11 from 12 bottoms of separation chamber, atomizes the evaporation once more, and ultrasonic atomization piece 2 is the ultrasonic atomization piece.

The primary separation cover 4 is an umbrella-shaped cover, the primary separation cover 4 covers the bottom of the separation cavity 12, a primary through hole 41 is formed between the primary separation cover 4 and the separation cavity 12, the top of the atomization cavity 11 is provided with a sharp opening 11-1, and the sharp opening 11-1 is arranged in the primary separation cover 4.

The atomization cavity 11 is divided into a liquid reaction chamber 111 and an air chamber 112, the ultrasonic atomization sheet 2 is arranged in the liquid reaction chamber 111, the liquid to be concentrated is arranged in the liquid reaction chamber 111, a fan 5 is arranged in the air chamber 112, an air inlet 1121 communicated with the outside is processed at the bottom of the air chamber 112, an air outlet 1122 communicated with the liquid reaction chamber 111 is processed at the top of the air chamber 112, the fan 5 rotates to generate air flow, and the air flow flows out from the air outlet 1122, because the air outlet is positioned at the top of the air chamber 112, the air flow direction is upward, the water mist is driven to the top, the water vapor can be conveniently removed by the demister, the bottom of the liquid reaction chamber 111 is provided with a plurality of mounting through holes, the ultrasonic atomization sheet 2 is arranged in the mounting through holes, and ultrasonic atomization piece 2 is provided with sealing silica gel with the installation through-hole junction, and 5 amount of wind of fan can be adjusted, and the quantity of ultrasonic atomization piece 2 is a plurality of, constitutes atomizing module.

The air outlet 1122 is higher than the highest liquid level of the liquid to be concentrated in the liquid reaction chamber 111, so as to prevent the liquid from flowing back.

The separation chamber 12 is the sphere cavity structure, separation chamber 12 bottom and atomizing chamber 11 pass through honeycomb duct 6 intercommunication, and the liquid that condenses at separation chamber 12 bottom flows back to the atomizing chamber through honeycomb duct 6 and handles in unison.

Still include the secondary separation group 7 in separation chamber 12 middle part, secondary separation group 7 is including separating interlayer 71 and second grade separation cover 72, and separation interlayer 71 divide into second grade separation chamber 121 and first order separation chamber 122 with separation chamber 12 two parts from top to bottom, and processing has steam inlet 711 and second grade water conservancy diversion mouth 712 on the separation interlayer 71, and steam inlet 711 and second grade water conservancy diversion mouth 712 top of separation interlayer 71 are provided with second grade separation cover 72, and second grade water conservancy diversion mouth 712 is provided with the step that sinks to there is 5 inclination, does benefit to the liquid medicine collection of atomizing agglutination.

The second-stage separation cover 72 is an umbrella-shaped cover, the second-stage flow guide opening 712 is arranged on the inner side of the second-stage separation cover 72, and a second-stage through hole 721 is formed between the second-stage separation cover 72 and the separation interlayer 71.

One part of the small molecular water mist passes through the separation interlayer 71 and the secondary separation cover 72 and is discharged from the demister 3 at the top of the separation cavity 12, the other part of the small molecular water mist is gathered at the bottom of the secondary separation cover 72 into water drops and then falls down, flows into the primary separation chamber 122 from the secondary flow guide port 712, and finally flows back to the atomization cavity 11 through the flow guide pipe 6 at the bottom of the separation cavity 12.

The middle part of the separation interlayer 71 is provided with a sharp opening part 71-1, the top end of the sharp opening part 71-1 is arranged in the secondary separation cover 72, the periphery of the separation interlayer 71 is sunken towards the sharp opening part 71-1 in the middle part, so that condensed liquid flows down from the secondary flow guide opening 712 in a strand, and the sharp opening part 71-1 is beneficial to the collection of water mist.

Still include atomizing baffle 8, atomizing baffle 8 sets up at 11 top openings of atomizing chamber through spliced pole 81, partly entering separation chamber 12 after passing atomizing baffle 8 of water smoke, partly flow back to after 8 bottom aggregations of atomizing baffle in treating concentrated liquid, avoid the ultrasonic atomization in the water smoke contain too much active ingredient, the liquid medicine promptly, the liquid medicine molecule is great, can directly be kept apart by atomizing baffle, the aggregation drips back atomizing chamber 11, reduces concentrated extravagant, practices thrift the cost.

Still include operation control panel 9, operation control panel 9 respectively with ultrasonic atomization piece 2 and fan 5 electric connection, operation control panel 9 passes through circuit board vary voltage, manual regulation control, the quantity and the operating duration of 2 work of ultrasonic atomization pieces can be adjusted.

The second embodiment is as follows: combine figure 1, 2, 5, this embodiment is explained in 6 and 7, this embodiment's an ultrasonic atomization enrichment facility, including shell body 1, ultrasonic atomization piece 2, defroster 3 and one-level separation cover 4, be separation chamber 12 and atomizing chamber 11 from top to bottom in the shell body 1 respectively, atomizing chamber 11 and separation chamber 12 pass through 4 intercommunications of one-level separation cover, separation chamber 12 bottom and atomizing chamber 11 intercommunication, atomizing chamber 11 inside is equipped with ultrasonic atomization piece 2, separation chamber 12 top is provided with defroster 3, treat that concentrated liquid arranges atomizing chamber 11 in, shell body 1 is the stainless steel, plastics, corrosion-resistant smooth surface materials such as ya keli, condensate water adhesive force is little, easily clean.

Treat concentrated liquid and atomize into water smoke through ultrasonic atomization piece 2 and get into separation chamber 12, wherein the micromolecule water smoke in the water smoke passes one-level separation cover 4 and discharges from defroster 3 at 12 tops of separation chamber, and macromolecule water smoke falls after gathering into the drop of water in 4 bottoms of one-level separation cover, flows back to atomization chamber 11 from 12 bottoms of separation chamber, atomizes the evaporation once more, and ultrasonic atomization piece 2 is the ultrasonic atomization piece.

The atomization cavity 11 is divided into a liquid reaction chamber 111 and an air chamber 112, the ultrasonic atomization sheet 2 is arranged in the liquid reaction chamber 111, the liquid to be concentrated is arranged in the liquid reaction chamber 111, a fan 5 is arranged in the air chamber 112, an air inlet 1121 communicated with the outside is processed at the bottom of the air chamber 112, an air outlet 1122 communicated with the liquid reaction chamber 111 is processed at the top of the air chamber 112, the fan 5 rotates to generate air flow, and the air flow flows out from the air outlet 1122, because the air outlet is positioned at the top of the air chamber 112, the air flow direction is upward, the water mist is driven to the top, the water vapor can be conveniently removed by the demister, the bottom of the liquid reaction chamber 111 is provided with a plurality of mounting through holes, the ultrasonic atomization sheet 2 is arranged in the mounting through holes, and ultrasonic atomization piece 2 is provided with sealing silica gel with the installation through-hole junction, and 5 amount of wind of fan can be adjusted, and the quantity of ultrasonic atomization piece 2 is a plurality of, constitutes atomizing module.

The air outlet 1122 is higher than the highest liquid level of the liquid to be concentrated in the liquid reaction chamber 111, so as to prevent the liquid from flowing back.

The bottom of the separation cavity 12 is communicated with the atomization cavity 11 through the draft tube 6, and the condensed liquid at the bottom of the separation cavity 12 flows back to the atomization cavity through the draft tube 6 for uniform treatment.

Still include atomizing baffle 8, atomizing baffle 8 sets up at 11 top opening parts in atomizing chamber, the water smoke is partly to pass and to enter separation chamber 12 behind atomizing baffle 8, and partly flows back to after 8 bottom aggregations of atomizing baffle in treating concentrated liquid, avoids containing too much active ingredient in the atomizing water smoke of ultrasonic wave, and the liquid medicine promptly, the liquid medicine molecule is great, can directly be kept apart by atomizing baffle, and the aggregation drips back atomizing chamber 11, reduces concentrated extravagant, practices thrift the cost.

Still include operation control panel 9, operation control panel 9 respectively with ultrasonic atomization piece 2 and fan 5 electric connection, operation control panel 9 passes through circuit board vary voltage, manual regulation control, the quantity and the operating duration of 2 work of ultrasonic atomization pieces can be adjusted.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

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.