Vacuum filtering device for blocking sublimate of OLED (Organic Light Emitting Diode) material

Abstract

The utility model discloses a vacuum filter device for blocking OLED material sublimate, including upper flange joint (1), filter chamber (2) and lower flange joint (3), filter chamber (2) includes first perforated plate (21), barrel (22) and second perforated plate (23), first perforated plate (21) is provided in the upper part of barrel (22), second perforated plate (23) is provided in the lower part of barrel (22), and the lower flange joint (3) is provided in the lower flange joint (3). A filtering space is formed among the first perforated plate (21), the inner side surface of the cylinder body (22) and the second perforated plate (23), and a plurality of metal intercepting balls (4) with holes are arranged in the filtering space. When sublimated materials pass through the filtering device, gas overflows through the dense gaps to collide with the metal intercepting balls, and the sublimated materials are intercepted and condensed by the metal sheets in the process to be attached to the surfaces of the metal intercepting balls, so that the materials are prevented from entering the pump body to cause the blockage of the pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field, concretely relates to a vacuum filter device for blocking OLED material sublimate. BACKGROUND

[0002] The synthesis reaction process has OLED material high temperature sublimation, and the sublimated material is sucked into the vacuum pump in the vacuumizing process, so that the operation of the vacuum pump is slowed down, and the vacuum pump is blocked in severe cases, resulting in the vacuum pump being stuck and unable to operate, which consumes a lot of manpower, material resources, time and money in disassembly and repair, and further delays the production. There are several problems in this process:

[0003] (1) The existing vacuum pump filter device is easy to intercept all the sublimated material on the filter screen, resulting in the filter box being sucked in during vacuumizing, and thus increasing the failure rate of maintenance.

[0004] (2) Enlarging the filter screen filter diameter will cause the sublimated material to enter the vacuum, and long-time operation will also cause the sublimated material to enter the vacuum pump, resulting in the vacuum pump being stuck.

[0005] Chinese patent document CN 110538482A discloses a sublimation purification equipment, a vacuum filter device is arranged between the sublimation purification module and the vacuum pump, which includes at least one group of filter components, each group of filter components includes a first filter sheet and a second filter sheet, and a plurality of filter holes are arranged on the first filter sheet and the second filter sheet and are staggered with each other. In the above patent document, the gap between the stacked porous filter sheets is large, and part of the sublimated material cannot be intercepted into the vacuum pump body; since the stacked filter sheets are used for airway interception, when the sublimated material condenses, the airway may be blocked, and the stacked filter plate is inconvenient to clean.

[0006] Chinese patent document CN 221107416U discloses a vacuum filter device for vacuum induction furnace, which includes a filter body, a clean gas chamber is arranged on the upper segment of the filter body, a filter chamber is arranged on the middle segment, and an oil pool is arranged on the lower segment; the clean gas chamber and the filter chamber are cylindrical structures, the clean gas chamber and the filter chamber are separated by a chuck, a bag cage is connected to the lower part of the chuck and arranged in the filter chamber, and a cloth bag is arranged in the bag cage; a blowing pipe is connected to the upper part of the chuck and arranged in the clean gas chamber, the blowing pipe is arranged along the upper wall of the chuck, one end of the blowing pipe penetrates into the cloth bag downward, and the other end of the blowing pipe penetrates through the side wall of the clean gas chamber cylindrical body and is connected with a controller. The above patent document can effectively filter the oil-containing gas, but the interception effect of the material sublimation is poor, which may cause dirt in the filter, cloth bag failure and other technical problems. UTILITY MODEL CONTENTS

[0007] In order to overcome the above problems, prevent the abnormal situation of the material sublimation and the vacuum pump being stuck, the utility model provides a vacuum filtering device for blocking OLED material sublimation.

[0008] The utility model discloses the following technical scheme:

[0009] A vacuum filtering device for blocking OLED material sublimation, including upper flange joint, filter cavity and lower flange joint, the filter cavity includes first porous plate, cylinder and second porous plate, the first porous plate sets up in the cylinder upper part, the second porous plate sets up in the cylinder lower part, and the filter space is formed between the first porous plate, the inside of cylinder and the second porous plate, and a plurality of metal intercepting balls with eyelets are arranged in the filter space.

[0010] Preferably, the plurality of metal intercepting balls are in a disordered state and are filled in the filter space between the first porous plate and the second porous plate.

[0011] Preferably, the metal intercepting ball is a hollow cylindrical structure, a plurality of eyelets are arranged on the cylindrical surface of the metal intercepting ball, and the inside of each eyelet is provided with a baffle bent towards the axial direction of the metal intercepting ball.

[0012] Preferably, the filter cavity is a cylindrical structure.

[0013] Preferably, the first porous plate and the second porous plate are uniformly provided with a plurality of circular through holes.

[0014] Preferably, the first porous plate and the second porous plate are fixedly connected with the cylinder through a clamping connector.

[0015] Preferably, the upper flange joint and the lower flange joint are conical, and the large end of each is connected with the cylinder through a quick connector.

[0016] Further, at least one observation window is arranged on the outer wall surface of the cylinder, and an observation glass is arranged at the observation window.

[0017] The utility model technical scheme has the following advantages:

[0018] A. When the sublimated material passes through the filtering device, the gas overflow collides with the metal intercepting ball through the dense gap, and in this process, the sublimated material is intercepted and condensed by the metal sheet and adheres to the surface of the metal intercepting ball, so as to prevent the material from entering the inside of the pump body and causing the pump to be stuck.

[0019] B.Because the metal interception ball has large stacking density in the cylinder and the gaps are staggered, the gas collision condensation effect is better in the cylinder, meanwhile, the structure is easy to disassemble, and the metal interception ball can be cleaned after being poured out from the cylinder, and the cleaned metal interception ball is installed through clamping, which is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application, the following will briefly introduce the drawings needed to be used in the specific embodiments, obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0021] Figure 1 The main view of the filtering device provided by the present application is shown in the figure.

[0022] Figure 2 The main view of the filtering device provided by the present application is shown in the figure. Figure 1 The plane schematic view of the first porous plate and the second porous plate is shown in the figure.

[0023] Figure 3 The plane schematic view of the first porous plate and the second porous plate is shown in the figure. Figure 1 The structure schematic view of the metal interception ball is shown in the figure.

[0024] The figure is marked as follows:

[0025] 1-upper flange joint; 2-filtering cavity, 21-first porous plate, 22-cylinder, 23-second porous plate; 3-lower flange joint; 4-metal interception ball, 41-hole, 42-baffle; 5-observation window; 6-tightening connecting piece. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely in combination with the drawings, obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0027] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it is to explain, unless otherwise definite and limited, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal communication, for ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0029] As Figure 1 , Figure 2 And Figure 3 The utility model provides a kind of vacuum filter device for blocking OLED material sublimates, including upper flange joint 1, filter cavity 2 and lower flange joint 3, filter cavity 2 includes first porous plate 21, cylinder 22 and second porous plate 23, first porous plate 21 is set on the upper portion of cylinder 22, second porous plate 23 is set on the lower portion of cylinder 22, filter space is formed between first porous plate 21, cylinder 22 inner side and second porous plate 23, a plurality of metal intercepting balls 4 with eyelet 41 are equipped in filter space.The position of metal intercepting ball 4 set in filter space is in disorder state and is filled in the filter space between first porous plate 21 and second porous plate 23, so that air flow passage presents disorder state, sublimates enter cylinder, will cause impact to each metal intercepting ball, then pass through gap and eyelet, is attached to the surface of intercepting ball by metal intercepting ball interception and condensation, to prevent material from entering pump body interior and causing pump jam.

[0030] As Figure 3 Metal intercepting ball 4 is preferably hollow cylindrical structure, and a plurality of eyelets 41 are arranged on the cylindrical surface of the metal intercepting ball 4, and the inner side of each eyelet 41 is provided with a baffle 42 bent towards the axial direction of the metal intercepting ball 4, which can further intercept the sublimates. The baffle can be formed by cutting the cylindrical surface and then bending the cut panel inward. The filter cavity 2 is preferably a cylindrical structure. Of course, the end portions of the upper flange joint 1 and the lower flange joint 3 connected to the cylinder 22 are also circular. The preferred upper flange joint 1 and lower flange joint 2 are conical, and the large end portions thereof are connected to the cylinder 22 through quick clamping connectors. This is very convenient for disassembling and assembling the upper flange joint 1 and the lower flange joint 2. Meanwhile, the first porous plate 21 and the second porous plate 23 are fixedly connected to the cylinder 22 through a fastening connector 6. The fastening connector 6 can be arranged at the two ends of the cylinder 22, and the first porous plate 21 and the second porous plate 22 are buckled at the two ends of the cylinder 22 and fixedly connected to the fastening connector 6.

[0031] As Figure 2As shown, the first porous plate 21 and the second porous plate 23 are both distributed with a plurality of circular through holes, and in order to facilitate observation of the inside of the cylinder, as a further preferred embodiment of the utility model, at least one observation window 5 is arranged at the outer wall surface of the cylinder 22, and the observation window 5 is provided with an observation glass.

[0032] The utility model discloses a device which is divided into upper flange joint, cylinder, lower flange joint three parts and is composed, and the three parts are fast connected by fast card. Medium enters by upper flange joint, enters the cylinder after passing through first porous plate, is intercepted to sublimation material by metal intercepting ball, remains inside the cylinder, and clean gas source enters vacuum pump again by lower flange joint. When filtering to a certain degree, after observing the intercepting material in the cylinder 22 through the observation window 5 to a certain amount, the fast card of the upper and lower flange joints is opened, the cylinder 22 is taken out, the first porous plate 21 and the second porous plate 23 at both ends of the cylinder 22 are opened, and the metal intercepting ball 4 in the inside of the cylinder 22 is poured out. The metal intercepting ball 4, the cylinder 22 and the two porous plates are cleaned with relevant cleaning fluid, so that the device can be reused and long-term stable operation of the whole device can be ensured.

[0033] The utility model discloses the unmentioned place in the utility model is applicable to the prior art.

[0034] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the embodiments. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and cannot exhaust all the embodiments. The obvious changes or variations derived from still be within the protection scope of the utility model.

Claims

1. A vacuum filtration device for blocking sublimates of OLED materials, comprising an upper flange joint (1), a filtration cavity (2) and a lower flange joint (3), characterized in that, The filter cavity (2) comprises a first porous plate (21), a cylinder (22) and a second porous plate (23), the first porous plate (21) is arranged on the upper part of the cylinder (22), the second porous plate (23) is arranged on the lower part of the cylinder (22), the filter space is formed between the first porous plate (21), the inner side of the cylinder (22) and the second porous plate (23), and a plurality of metal interception balls (4) with holes are arranged in the filter space.

2. The vacuum filtration apparatus for blocking sublimates of OLED materials according to claim 1, wherein, A plurality of the metal interception balls (4) are stacked in the filter space between the first porous plate (21) and the second porous plate (23) in a disordered state.

3. The vacuum filtration apparatus for blocking sublimates of OLED materials according to claim 1, wherein, The metal interception ball (4) is a hollow cylindrical structure, a plurality of holes (41) are arranged on the cylindrical surface of the metal interception ball (4), and the inner side of each hole (41) is provided with a baffle (42) bent towards the axial direction of the metal interception ball (4).

4. The vacuum filtration apparatus for blocking sublimates of OLED materials according to claim 1, wherein, The filter cavity (2) is a cylindrical structure.

5. The vacuum filtration apparatus for blocking sublimates of OLED materials according to any one of claims 1 to 4, characterized in that, The first porous plate (21) and the second porous plate (23) are uniformly provided with a plurality of circular through holes.

6. The vacuum filtration apparatus for blocking sublimates of OLED materials according to claim 5, wherein, The first porous plate (21) and the second porous plate (23) are fixedly connected with the cylinder (22) through the tight connecting piece (6).

7. The vacuum filtration apparatus for blocking sublimates of OLED materials according to claim 5, wherein, The upper flange joint (1) and the lower flange joint (3) are respectively conical, and the large end of each is connected with the cylinder (22) through a quick clamping connecting piece.

8. The vacuum filter device for blocking the sublimates of OLED materials according to claim 1, characterized in that At least one observation window (5) is arranged on the outer wall surface of the cylinder (22), An observation glass is arranged at the observation window (5).

Images