Exhaust device of single crystal furnace

Abstract

The utility model relates to an exhaust device of a single crystal furnace, which comprises a support, a branch exhaust pipe, a main exhaust pipe, a screw and a fan cover, the branch exhaust pipe is mounted on the upper side of the support, one end of the branch exhaust pipe is connected with a vertically arranged hose, and the other end of the branch exhaust pipe is connected to the main exhaust pipe; the fan cover is installed on the lower side of the hose, a cross beam is arranged in the fan cover, the screw rod coincides with the axis of the hose, the screw rod is in threaded connection with the branch exhaust pipe, the screw rod is rotationally connected with the cross beam, two limiting bosses are further arranged on the screw rod, and the cross beam is clamped between the two limiting bosses. The height of the fan cover is adjusted through the screw rod, so that a reasonable gap is kept between the fan cover and the upper opening of the single crystal furnace, and thorough exhaust is facilitated; meanwhile, scratching between the sealing surface of the upper opening of the single crystal furnace and the fan cover is avoided, the maintenance frequency of the single crystal furnace is reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of single crystal rod production technology, specifically to a single crystal furnace exhaust device. Background Technology

[0002] After the single crystal rod is pulled in the single crystal furnace, the cooling process requires the exhaust system to remove the remaining gas and fine dust from the equipment, thereby quickly removing heat from the furnace, purifying the workshop environment, and improving the cooling process.

[0003] During the furnace cooling process, the exhaust port of the exhaust system needs to be moved above the top of the single crystal furnace. Currently, the exhaust port height of the exhaust system is fixed, and there are differences in the height of the upper edge of the furnace cylinder on different furnace platforms. On the one hand, the exhaust system is prone to friction with the top of some single crystal furnaces during the movement, damaging the sealing surface; on the other hand, the distance between the exhaust system and the top of some single crystal furnaces is too far, making the furnace cooling process time-consuming. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a single crystal furnace exhaust device, the specific technical solution of which is as follows:

[0005] A single crystal furnace exhaust device includes a support, branch exhaust pipes, a main exhaust pipe, a screw, and a hood. The branch exhaust pipes are installed on the upper side of the support, with one end connected to a vertically arranged flexible hose and the other end connected to the main exhaust pipe. The hood is installed on the lower side of the flexible hose and has a crossbeam inside. The screw and the flexible hose have their axes aligned. The screw is threaded to the branch exhaust pipe and rotatably connected to the crossbeam. The screw also has two limiting bosses that clamp the crossbeam in the middle.

[0006] Furthermore, the hose is a corrugated pipe.

[0007] Furthermore, the lower side of the bracket is equipped with casters, and the casters are fitted with brake pads.

[0008] Furthermore, a rotating handle is connected to the upper end of the screw.

[0009] Furthermore, the branch exhaust pipe has a through hole, and a nut is provided above the through hole. The screw passes through the nut and the through hole and is connected to the crossbeam.

[0010] The beneficial effects of this utility model are as follows:

[0011] Adjusting the height of the hood by using a screw ensures a reasonable gap between the hood and the top of the single crystal furnace, facilitating thorough air exhaust. This also prevents the sealing surface of the single crystal furnace from rubbing against the hood, reducing the frequency of furnace maintenance, thus lowering production costs and increasing production efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the single crystal furnace exhaust device described in this utility model;

[0014] Figure 2 This is a cross-sectional view of the hose described in this utility model;

[0015] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0016] In the diagram: 1. Fan cover; 2. Hose; 3. Branch exhaust pipe; 4. Screw; 5. Rotary handle; 6. Nut; 7. Bracket; 8. Crossbeam; 9. Limiting boss. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] The present invention provides the following specific implementation scheme:

[0019] like Figure 1-3As shown, this utility model provides a single crystal furnace exhaust device, including a support 7, a branch exhaust pipe 3, a main exhaust pipe, a screw 4, and an exhaust hood 1. The branch exhaust pipe 3 is installed on the upper side of the support 7. One end of the branch exhaust pipe 3 is connected to a vertically arranged flexible hose 2, and the other end of the branch exhaust pipe 3 is connected to the main exhaust pipe. The branch exhaust pipe 3 is connected to the exhaust system through the main exhaust pipe. The exhaust hood 1 is installed on the lower side of the flexible hose 2. A crossbeam 8 is provided inside the exhaust hood 1. The axis of the screw 4 coincides with that of the flexible hose 2. The screw 4 is threadedly connected to the branch exhaust pipe 3. The screw 4 is rotatably connected to the crossbeam 8. The screw 4 is also provided with two limiting bosses 9, which clamp the crossbeam 8 in the middle. In use, the exhaust hood 1 is located at the upper opening of the single crystal furnace.

[0020] Furthermore, hose 2 is a corrugated hose, which facilitates extension and retraction.

[0021] Furthermore, the lower side of the bracket 7 is equipped with casters, which are fitted with brake pads to facilitate the movement of the entire device, thereby enabling the cooling operation of each single crystal furnace.

[0022] Furthermore, a rotating handle 5 is connected to the upper end of the screw 4, which is used to facilitate the rotation of the screw 4.

[0023] Furthermore, the branch exhaust pipe 3 has a through hole, and a nut 6 is provided above the through hole. The nut 6 is welded to the branch exhaust pipe 3, and the screw 4 passes through the nut 6 and the through hole and is connected to the crossbeam 8.

[0024] In addition, the main exhaust duct is also a corrugated pipe; the exhaust system includes a fan, exhaust gas treatment components, etc.

[0025] When in use, move the exhaust device to the single crystal furnace that needs to be cooled, rotate the screw 4 to raise the hood 1 and then move it again so that the hood 1 is above the top of the single crystal furnace. Then rotate the screw 4 again to lower the hood 1 until the gap between the hood 1 and the top of the single crystal furnace reaches the required level. Finally, start the exhaust system.

[0026] Adjusting the height of the hood 1 by screw 4 ensures a reasonable gap between the hood 1 and the top of the single crystal furnace, which facilitates thorough exhaust. At the same time, it prevents the sealing surface of the top of the single crystal furnace from rubbing against the hood 1, which helps reduce the maintenance frequency of the single crystal furnace, thereby reducing production costs and improving production efficiency.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A single crystal furnace exhaust device, characterized in that: The system includes a bracket, branch exhaust ducts, a main exhaust duct, a screw, and a fan cover. The branch exhaust duct is installed on the upper side of the bracket, with one end connected to a vertically arranged flexible hose and the other end connected to the main exhaust duct. The fan cover is installed on the lower side of the flexible hose and has a crossbeam inside. The screw and the flexible hose have their axes aligned, and the screw is threaded to the branch exhaust duct and rotatably connected to the crossbeam. The screw also has two limiting bosses that clamp the crossbeam in the middle.

2. The exhaust device for a single crystal furnace according to claim 1, characterized in that: The hose is a corrugated pipe.

3. The exhaust device for a single crystal furnace according to claim 1, characterized in that: The bracket has casters on the underside, and brake pads are installed on the casters.

4. The exhaust device for a single crystal furnace according to claim 1, characterized in that: The upper end of the screw is also connected to a rotating handle.

5. The exhaust device for a single crystal furnace according to claim 1, characterized in that: The branch exhaust pipe has a through hole, and a nut is installed above the through hole. The screw passes through the nut and the through hole and is connected to the crossbeam.

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