CN220149709U

CN220149709U - Spiral air guide cylinder capable of changing thermal field air flow

Info

Publication number: CN220149709U
Application number: CN202320962131.2U
Authority: CN
Inventors: 刘重阳; 王军磊; 王艺澄
Original assignee: Yunnan Meike New Energy Development Co ltd; Baotou Meike Silicon Energy Co Ltd
Current assignee: Yunnan Meike New Energy Development Co ltd; Baotou Meike Silicon Energy Co Ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-12-08
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to the technical field of single crystal furnaces, in particular to a spiral air guide cylinder for changing the air flow of a thermal field, which comprises a first cylinder body arranged at an air outlet of a single crystal furnace, wherein the inner wall of the first cylinder body is fixedly connected with a second cylinder body, the inner wall of the second cylinder body is spiral, and the lower end of the first cylinder body is fixedly connected with an air outlet cylinder.

Description

Spiral air guide cylinder capable of changing thermal field air flow

Technical Field

The utility model relates to the technical field of single crystal furnaces, in particular to a spiral air guide cylinder for changing hot field air flow.

Background

The conversion efficiency of the solar cell has a great relation with impurities in the silicon wafer, while oxygen is the most main impurity which is introduced unintentionally in the Czochralski silicon and has a destructive effect on the performance of silicon materials and devices, so that changing the generation of oxygen in the single crystal furnace has great significance for producing high-quality single crystal silicon.

The current gas cylinder has lower impurity gas discharging efficiency, and along with the increase of the operation time of the hearth, the oxygen content in the single crystal furnace is increased, so that the production quality is poor.

Disclosure of Invention

In view of the above, the present utility model is directed to a spiral air guide cylinder for changing the air flow in a thermal field, so as to solve the problems of low efficiency of the air guide cylinder for discharging impurity gas and poor production quality caused by increased oxygen content.

Based on the above purpose, the utility model provides a spiral air guide cylinder for changing the air flow of a thermal field, which comprises a first cylinder body arranged at the position of a single crystal furnace, wherein the inner wall of the first cylinder body is fixedly connected with a second cylinder body, the inner wall of the second cylinder body is spiral, and the lower end of the first cylinder body is fixedly connected with an air outlet cylinder.

Optionally, a section of the second cylinder body far away from the air outlet cylinder is a smooth surface.

Optionally, the first cylinder and the second cylinder are coaxially arranged.

Optionally, an insulation layer is arranged in the first cylinder.

Optionally, one end of the air outlet tube is inclined in a direction away from the axis.

The utility model has the beneficial effects that: through the second barrel that sets up, the inner wall of second barrel heliciform makes the waste gas in the single crystal growing furnace discharge with spiral mode, makes the air current velocity in the gas cylinder increase, and the faster discharge of waste gas, the oxygen content in the stove reduces, improves production quality, and spiral air current's mobility is strong simultaneously, will stir the volatile, prevents that the volatile from piling up in gas vent department and influencing exhaust efficiency.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of a spiral air guide cylinder for changing the air flow of a thermal field according to an embodiment of the present utility model;

FIG. 2 is a front view of a spiral gas cartridge that alters the flow of a thermal field in accordance with an embodiment of the present utility model;

fig. 3 is a cross-sectional view at A-A in fig. 2.

Marked in the figure as:

1. a first cylinder; 2. a second cylinder; 3. and an air outlet cylinder.

Detailed Description

The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.

It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1 to 3, a spiral air guide cylinder for changing the airflow of a thermal field comprises a first cylinder body 1 arranged at the position of a single crystal furnace, wherein the inner wall of the first cylinder body 1 is fixedly connected with a second cylinder body 2, the inner wall of the second cylinder body 2 is spiral, and the lower end of the first cylinder body 1 is fixedly connected with an air outlet cylinder 3.

The inner wall of the second cylinder body 2 in a spiral shape enables waste gas in the single crystal furnace to be discharged in a spiral mode, so that the air flow speed in the air guide cylinder is increased, the waste gas is discharged faster, the oxygen content in the furnace is reduced, the production quality is improved, meanwhile, the mobility of spiral air flow is high, volatile matters are stirred, and the volatile matters are prevented from accumulating at an exhaust port to influence the exhaust efficiency.

In one embodiment, as shown in fig. 3, a section of the second cylinder 2 away from the air outlet 3 is a smooth surface, so as to be convenient for installation with a single crystal furnace air outlet.

In one embodiment, as shown in fig. 3, the first cylinder 1 and the second cylinder 2 are coaxially arranged.

In one embodiment, an insulation layer is disposed in the first cylinder 1, so as to avoid the attachment of volatiles to the inner wall of the second cylinder 2 caused by sudden temperature drop.

In one embodiment, as shown in fig. 3, one end of the air outlet 3 is inclined away from the axis, so as to prevent the volatile matters blown out from the second cylinder 2 from adhering to the inner wall of the air outlet 3.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as above, which are not provided in detail for the sake of brevity.

The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a change spiral air guide cylinder of thermal field air current, includes first barrel (1) of setting up in monocrystalline gas exhaust mouth department, its characterized in that, first barrel (1) inner wall fixedly connected with second barrel (2), second barrel (2) inner wall is the heliciform, the lower extreme fixedly connected with air outlet cylinder (3) of first barrel (1).

2. A spiral gas cylinder for modifying a thermal field gas flow according to claim 1, wherein a section of the second cylinder (2) remote from the gas outlet (3) is smooth.

3. A spiral gas cylinder for varying the flow of a thermal field according to claim 1, characterized in that the first cylinder (1) and the second cylinder (2) are coaxially arranged.

4. A spiral gas cylinder for varying the flow of a thermal field according to claim 1, characterized in that a heat insulating layer is provided in the first cylinder (1).

5. A spiral gas cylinder for modifying the flow of a thermal field according to claim 1, wherein one end of the gas cylinder (3) is inclined away from the axis.