KR102153704B1 - Sublimation purifying apparatus and trap unit thereof - Google Patents

Abstract

According to an embodiment of the present invention, provided is a sublimation purifying apparatus comprising: a main body unit in which a first internal space is formed in a longitudinal direction wherein a vaporization member for receiving an object to be purified and a sublimation member, to which a gaseous object to be purified is attached, are disposed in the first internal space; a heater unit located on an outer circumferential surface of the main body unit, and including a first heating member for heating the vaporization member and a second heating member for heating the sublimation member; a vacuum pump unit connected to the main body unit and controlling a vacuum state of the first internal space; and a trap unit provided between the main body unit and the vacuum pump unit, and including a frame member having a second internal space in communication with the first internal space and a plurality of perforated plates detachably coupled to an inner circumferential surface of the frame member. In one of the perforated plates, a position of a hollow part does not overlap that of an adjacent perforated plate. According to the present invention, the movement of a material is physically blocked to prevent a sublimated material from being introduced into the vacuum pump.

Description

Sublimation purification apparatus and trap unit provided therein TECHNICAL FIELD [SUBLIMATION PURIFYING APPARATUS AND TRAP UNIT THEREOF}

The present invention relates to a sublimation purification apparatus and a trap unit provided therein, and more particularly, to a sublimation purification apparatus for separating organic substances and impurities from an object to be purified, and a trap unit provided thereto.

Various organic materials are used for organic light emitting devices (OLEDs). When impurities are mixed in such an organic material, luminous intensity and luminous efficiency may be greatly reduced due to the impurities. That is, the purity of the organic material can have a great influence on the light emitting characteristics of the organic light emitting device.

Therefore, in the manufacture of an organic light emitting device, etc., a process of purifying an organic material is essentially required. As a method of purifying organic substances, a vacuum sublimation purification method in which organic substances and impurities are separated using a difference in sublimation point is widely used. In such a vacuum sublimation purification method, it is necessary to block the movement of the sublimated substances so that they do not enter the vacuum pump. To this end, a cold trap unit has been used for condensing a material flowing into a vacuum pump by heat exchange using a refrigerant.

However, the conventional cold trap unit has a problem that the refrigerant must be periodically replenished. In addition, when the refrigerant provided for heat exchange of the cold trap unit is exposed to the atmosphere in an enclosed space, there is a problem in that the concentration of oxygen in the air drops sharply and the worker may be suffocated.

Accordingly, there is a need for a more efficient and economical sublimation purification apparatus capable of physically blocking the movement of the material so that the sublimated material does not flow into the vacuum pump.

The technical problem to be achieved by the present invention is to provide a sublimation purification apparatus and a trap unit provided thereto to physically block the movement of substances so that sublimated substances do not flow into a vacuum pump.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention is a first internal space is formed along the longitudinal direction, a vaporization member in which a purification object is accommodated in the first internal space, and a sublimation member to which a gaseous purification object is attached A heater unit including a main body on which is disposed, a first heating member for heating the vaporizing member and a second heating member for heating the sublimation member, and a first internal space located on the outer circumferential surface of the main body. A vacuum pump unit for controlling the vacuum state of the frame member and a frame member provided between the body unit and the vacuum pump unit and forming a second inner space communicating with the first inner space, and a plurality of detachably coupled to the inner peripheral surface of the frame member Including a trap unit including a perforated plate of, any one perforated plate provides a sublimation purification apparatus in which positions of adjacent perforated plates and hollows do not overlap.

In one embodiment of the present invention, the perforated plate may be coupled to form an inclined side surface of the frame member.

In one embodiment of the present invention, the frame member may be formed with an opening and closing door on one side, and a coupling member to which a perforated plate is fitted and coupled to an inner peripheral surface of a pair of side surfaces perpendicular to the one surface.

In order to achieve the above technical problem, an embodiment of the present invention is coupled to the main body, a frame member having a second inner space communicating with the first inner space of the main body, and detachably coupled to the inner peripheral surface of the frame member A plurality of perforated plates are provided, and any one perforated plate provides a trap unit in which positions of adjacent perforated plates and hollows do not overlap.

According to an embodiment of the present invention, a separate refrigerant is not used, and a perforated plate may be used to physically block gaseous organic substances or impurities from entering the vacuum pump unit. In addition, according to the present invention, the amount of organic matter or impurities attached to the perforated plate can be easily checked through the viewing window, and the perforated plate can be easily replaced through the opening and closing door, so that user convenience can be improved.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a diagram showing a sublimation purification apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a cross section AA′ of FIG. 1.
3 is a view showing a trap unit unit with an open surface of the sublimation purification apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of a trap unit of the sublimation purification apparatus according to the first embodiment of the present invention.
5 is a cross-sectional view of a trap unit of a sublimation purification apparatus according to a second embodiment of the present invention.
6 is a view showing a perforated plate of the sublimation stagnation device according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and therefore is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, bonded)" with another part, it is not only "directly connected", but also "indirectly connected" with another member in the middle. "Including the case. In addition, when a part "includes" a certain component, it means that other components may be further provided, rather than excluding other components unless specifically stated to the contrary.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

1 is a view showing a sublimation purification apparatus according to an embodiment of the present invention, FIG. 2 is a view showing a cross-section AA′ of FIG. 1, and FIG. 3 is a view of a sublimation purification apparatus according to an embodiment of the present invention. It is a diagram showing the trap unit part with one side open.

The sublimation purification apparatus 1 is an apparatus for separating organic substances and impurities from a purification object using a difference in sublimation point, and obtaining purified organic substances, and includes a main body 10, a heater 20, and a vacuum pump. 30 and a trap unit part 40 may be included, and a support part 50 may be further included.

The body portion 10 is a component that accommodates the vaporizing member 120 and the sublimation member 130, and a first inner space 110 may be formed, and a purification object to be heated in the first inner space 110 ( A vaporizing member 120 in which O) is accommodated and a sublimation member 130 to which a purification object O'in a gaseous state vaporized or sublimated by heating is attached may be disposed. In this case, the main body 10 may be formed of a quartz material.

The main body 10 is coupled at one end with an inlet device (not shown) for continuously inflowing the object to be purified into the main body 10, or the opening door 140 for closing the first internal space 110 is hinged. I can. That is, when the opening/closing door 140 is formed, the user can open the first internal space 110 by rotating the opening/closing door 140, and then easily seat the object for purification.

The vaporizing member 120 is a component that accommodates a purification object O in a solid or liquid state, and has an open receiving space at one end and the other end along the longitudinal direction, and protrudes inward along the inner circumferential surface of one end and the other end. It may be formed in a shape having an edge portion 121.

The solid or liquid purification object O located in the receiving space is not separated from the receiving space by the rim portion 121 and may be vaporized or sublimated by the heater unit 20 to change to a gaseous state. In this case, the object to be purified is changed to a gaseous state, and may be separated into a gaseous organic substance and a gaseous impurity.

The gaseous organic substances and impurities (O', hereinafter, gaseous substances) may be induced to move toward the vacuum pump unit 30 by the airflow formed by the vacuum pump unit 30.

The sublimation member 130 is a component to which a gaseous substance (O') is sublimated and attached to the inner circumferential surface, and may be detachably disposed inside the body portion 10, and the object to be purified by the heater unit 20 It can be heated below the sublimation point of organic substances and impurities contained in (O). At this time, the sublimation member 130 may be made of a quartz material, and may be formed to have a sufficient length to form a temperature gradient by the heater unit 20.

In more detail, the sublimation member 130 may have a third inner space 134 that provides a movement path of the gaseous substance O', formed along the longitudinal direction, and gaseous organic substances and impurities are formed on the inner circumferential surface thereof. Can be attached. At this time, so that there is no difficulty in being inserted into the first inner space 110, the sublimation member 130 may be formed to have an outer diameter smaller than that of the first inner space 110.

Meanwhile, the sublimation member 130 may be heated at different temperatures depending on the region so that the gaseous organic material and impurities adhere to different regions. For example, a first region of the sublimation member 130 may be heated to a first sublimation point to attach impurities, and a second region of the sublimation member 130 may be heated to a second sublimation point to attach an organic substance. have. That is, the user can collect only the material attached to the second area to obtain the purified organic material.

On the other hand, the above-described example is only an example, and it goes without saying that the sublimation member 130 may be divided into two or more regions according to the number of gaseous impurities contained in the object O and the sublimation point thereof.

At this time, the sublimation member 130 has a lower temperature as it approaches the trap unit 40 so that the gaseous substance O'moving along the inside does not adhere to an area other than the original attachment area during movement. The area heated to can be located. In other words, the temperature may gradually decrease as it moves toward the moving direction.

According to an embodiment of the present invention, the sublimation member 130 may be formed to be separable according to regions having different heating temperatures. For example, when the sublimation member 130 is heated to three different temperatures, the sublimation member 130 may be divided into a first region 131, a second region 132, and a third region 133. And each area is separable.

Meanwhile, although the sublimation member 130 divided into three regions has been described as an example, the number of regions is not limited thereto.

The heater unit 20 is a component that heats the vaporization member 120 and the sublimation member 130, is formed to surround the body unit 10, and has a plurality of heating members 210. The vaporizing member 120 and the sublimation member 130 are heated by the heating member 210, so that organic substances located therein may be vaporized or sublimated. In this case, the vaporizing member 120 and the sublimation member 130 may be heated at different temperatures, and the sublimation member 130 may be heated at different temperatures for each region.

At this time, the shape and arrangement of the heating member 210 may be provided in various ways. For example, the heating member 210 may be formed in a vertically separated structure, and in this case, the heating members 210 separated vertically may be respectively controlled.

The vacuum pump unit 30 is a component that makes the first inner space 110 of the main body 10 and the second inner space 412 of the trap unit 40 to be described later into a vacuum state. The gaseous material O'located in the first inner space 110 and the second inner space 412 by the vacuum pump unit 30 may freely move.

At this time, the vacuum pump unit 30 includes a dry pump, a diffusion pump, a turbo molecular pump, an ion pump, a cryo pump, and a rotary pump ( Rotary pump).

The trap unit 40 is a component that physically blocks the movement of the gaseous material O'to prevent the gaseous material O'from entering the vacuum pump unit 30, and the vacuum pump unit 30 ) And may be formed between the body portion 10 (see FIG. 1).

3, the trap unit 40 is a frame in which a second inner space 412 communicating with the first inner space 110 is formed, and the vacuum pump unit 30 and the main body 10 are combined. A member 410 and a plurality of perforated plates 420 detachably coupled to the inside of the frame member 410 may be included.

The frame member 410 may be formed with an opening and closing door 411 on one side for ease of coupling and separation of the perforated plate 420, and the opening and closing door 411 may be formed with a viewing window 4111 made of a transparent material. (See Fig. 1) That is, the user can easily replace the perforated plate 420 located in the second inner space 412 by opening the opening and closing door 411, and attached to the perforated plate 420 through the viewing window 4111 The amount of impurities can be checked with the naked eye. In this case, the see-through window 4111 may be formed in a region corresponding to the perforated plate 420. That is, it may be formed so that only the perforated plate 420 can be observed.

In addition, a coupling member 413 having a groove into which the perforated plate 420 is fitted may be formed on the inner circumferential surface of the pair of side surfaces of the frame member 410. Accordingly, the user can easily couple the perforated plate 420 to the frame member 410 by inserting the perforated plate 420 into the groove of the coupling member 413.

When the perforated plate 420 is described with reference to FIG. 6, the perforated plate 420 is a plate in which one or more hollows 421 are formed, and the hollow 421 may be formed in a circular, square, or polygonal shape. At this time, the perforated plate 420 may be coupled to the frame member 410 so that the positions of the adjacent perforated plate 420 and the hollow 421 do not overlap. On the other hand, Figure 6 shows a perforated plate 420 having the same shape with each other hollow 421, but is not limited to this, as long as the hollows between adjacent perforated plates 420 do not overlap, it does not matter if they are formed in different shapes.

Here, the fact that the positions of the hollows are not overlapped means that the hollows provided in one perforated plate do not overlap each other with the hollows provided in the adjacent perforated plates, so that the gaseous material forms a straight flow path without being resisted by the perforated plate. It means no work.

In other words, the trap unit part 40 may have a gas flow path formed in a zigzag shape therein. The gaseous substance (O') introduced into the trap unit part 40 may be attached to the perforated plate 420 by contacting the perforated plate 420 while moving in a zigzag moving flow path.

As described above, the present invention forms a zigzag-shaped moving passage inside the frame member 410 using the perforated plate 420, thereby forming a wide attachment portion with a small volume, and the vacuum pump portion in the main body 10 Up to (30), a sufficient travel distance can be formed to recover gaseous substances.

In addition, the perforated plate 420 may be vertically coupled to the side surface of the frame member 410 as shown in FIGS. 3 and 4, or be coupled to form an inclination with the side surface of the frame member 410 as shown in FIG. I can.

In more detail, any one perforated plate 420 is coupled so that one surface is inclined with the side surface of the frame member 410 at a predetermined angle (A), and the other surface of the adjacent perforated plate has a side surface of the frame member 410 and a predetermined It may be combined to form an inclination at an angle A'. Through this, a plurality of perforated plates 420 may be arranged in a zigzag shape as viewed from a side cross-section as shown in FIG. 5. In FIG. 5, the hollow 421 provided in the perforated plate 420 is disposed at a position close to the adjacent perforated plate 420, but the hollow 421 may be formed to have the opposite arrangement.

Referring back to FIG. 1, the support part 50 is a component that supports the heater part 20 and the trap unit part 40, and the heater part 20 and the trap unit part 40 may be coupled to one surface. . In addition, a moving member such as a wheel may be coupled to one surface of the support part 50.

That is, when the user wants to move the sublimation purification apparatus 1, the user can push and move the sublimation purification apparatus 1.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains can understand that it is possible to easily transform it into other specific forms without changing the technical spirit or essential features of the present invention. will be.

Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

1: sublimation purification device
10: main body
20: heater part
30: vacuum pump unit
40: trap unit part

Claims (4)

A first internal space is formed along the longitudinal direction, and a vaporizing member in which a purification object is accommodated in the first internal space, and a sublimation member to which a gaseous substance in which the purification object is vaporized or sublimated is attached is disposed therein, The sublimation member includes a body portion that is separably disposed into a plurality of regions along a length direction,
It is located on the outer circumferential surface of the main body and includes a first heating member for heating the vaporizing member and a second heating member for heating the sublimation member, wherein the second heating member heats the plurality of regions to different temperatures. The configured heater unit,
A vacuum pump part connected to the body part to control a vacuum state of the first inner space,
A frame member provided between the body portion and the vacuum pump portion and having a second inner space communicating with the first inner space, an opening and closing door formed on one surface of the frame member, and a pair of inner side surfaces of the frame member A plurality of perforated plates to which the gaseous material is attached, and formed of a transparent material in a region corresponding to the plurality of perforated plates. Including a trap unit having a viewing window,
Any one perforated plate is characterized in that the position of the adjacent perforated plate and the hollow do not overlap.
The method of claim 1,
The perforated plate is characterized in that coupled to form an inclined inner surface of the frame member, sublimation purification apparatus. delete delete

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