CN210287578U - Guide cylinder - Google Patents
Guide cylinder Download PDFInfo
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- CN210287578U CN210287578U CN201921181567.8U CN201921181567U CN210287578U CN 210287578 U CN210287578 U CN 210287578U CN 201921181567 U CN201921181567 U CN 201921181567U CN 210287578 U CN210287578 U CN 210287578U
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- draft tube
- stainless steel
- guide cylinder
- steel pipe
- hollow stainless
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Abstract
The utility model discloses a draft tube in the technical field of photovoltaic equipment, including outer draft tube and inner draft tube, the lateral wall of outer draft tube is through welded fastening with solid stainless steel pipe, the lateral wall of outer draft tube is pegged graft and is had hollow stainless steel pipe, the inner chamber of outer draft tube is filled with soft felt, the inner draft tube is located in the inner chamber of outer draft tube, the inside wall of inner draft tube is opened has the dovetail groove, it has the air-cooled screen to inlay in the dovetail groove, the lateral wall of air-cooled screen contacts with the inside wall of outer draft tube, the hollow stainless steel pipe runs through outer draft tube, soft felt and outer draft tube and the air-cooled screen inner chamber intercommunication in proper order; the guide cylinder is reasonable in structural design, the combination of the outer guide cylinder and the inner guide cylinder is adopted, the strength of the single crystal furnace can be effectively increased by the combined use of the outer guide cylinder and the inner guide cylinder, and then safety accidents of the boiler in the crystal pulling process can be prevented.
Description
Technical Field
The utility model relates to a photovoltaic equipment technical field specifically is a draft tube.
Background
The photovoltaic power generation converts sunlight into electric energy, has the characteristics of cleanness and no pollution, and can play a role in protecting the environment. But the production cost is higher than that of the traditional thermal power at present, the development of the industry is hindered, and the cost reduction is urgent. The photovoltaic industry chain comprises polycrystalline silicon, single crystal drawing/polycrystalline casting, single/polycrystalline square rods, a solar cell, a photovoltaic module and a photovoltaic system, and in the single crystal drawing process, the cost can be greatly reduced by increasing the drawing speed. The existing guide cylinder has a serious problem that cooling water is adopted to cool the single crystal furnace in the crystal pulling process, once the crucible of the single crystal furnace rises abnormally, liquid water becomes gaseous water, and the single crystal furnace is exploded by increased air pressure in the single crystal furnace, so that safety accidents occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a draft tube to the draft tube that provides in solving above-mentioned background art adopts the cooling water to cool down the single crystal growing furnace at the in-process of crystal pulling, in case the single crystal growing furnace crucible rises unusually, liquid water becomes gaseous state water, and the atmospheric pressure that increases in the single crystal growing furnace can make the single crystal growing furnace explode, and then takes place the problem of incident.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a guide cylinder, includes outer guide cylinder and interior guide cylinder, the lateral wall of outer guide cylinder has solid nonrust steel pipe through welded fastening, the lateral wall of outer guide cylinder is pegged graft and is had hollow nonrust steel pipe, the inner chamber packing of outer guide cylinder has soft felt, interior guide cylinder is located in the inner chamber of outer guide cylinder, the inside wall of interior guide cylinder is opened has the dovetail groove, it has the air-cooled screen to inlay in the dovetail groove, the lateral wall of air-cooled screen with the inside wall contact of outer guide cylinder, hollow nonrust steel pipe runs through in proper order outer guide cylinder, soft felt with outer guide cylinder with the air-cooled screen inner chamber intercommunication.
Preferably, the hollow stainless steel tube and the solid stainless steel tube are fixed on the middle furnace barrel.
Preferably, the top of the outer guide cylinder is connected with the top of the inner guide cylinder through a bolt.
Preferably, the number of the hollow stainless steel tubes and the number of the solid stainless steel tubes are two, and the hollow stainless steel tubes on the left side are communicated with a compressed air machine.
Compared with the prior art, the beneficial effects of the utility model are that: the guide cylinder is reasonable in structural design, the combination of the outer guide cylinder and the inner guide cylinder is adopted, the strength of the single crystal furnace can be effectively increased by the combined use of the outer guide cylinder and the inner guide cylinder, and then safety accidents of the boiler in the crystal pulling process can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the air cooling device comprises an outer guide cylinder 100, a soft felt 110, a hollow stainless steel pipe 120, a solid stainless steel pipe 130, an inner guide cylinder 200 and an air cooling screen 210.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a draft tube, which is used for improving the strength of a single crystal furnace and avoiding safety accidents of a boiler in the crystal pulling process, and please refer to figure 1, and comprises an outer draft tube 100 and an inner draft tube 200.
Referring to fig. 1 again, the outer side wall of the outer draft tube 100 is fixedly provided with a solid stainless steel tube 130 by welding, the outer side wall of the outer draft tube 100 is inserted with a hollow stainless steel tube 120, the inner cavity of the outer draft tube 100 is filled with a soft felt 110, the solid stainless steel tube 100 is used for installation 200, the soft felt 110 is used for preventing energy loss and reducing energy consumption loss, and the hollow stainless steel tube 120 and the solid stainless steel tube 130 are used for installing the solid stainless steel tube 100.
Referring to fig. 1 again, the inner draft tube 200 is located in the inner cavity of the outer draft tube 100, the inner side wall of the inner draft tube 200 is provided with a trapezoidal groove, an air cooling screen 210 is embedded in the trapezoidal groove, the outer side wall of the air cooling screen 210 contacts with the inner side wall of the outer draft tube 200, the hollow stainless steel tube 120 sequentially penetrates through the outer draft tube 100, the soft felt 110 and the outer draft tube 200 and is communicated with the inner cavity of the air cooling screen 210, the inner draft tube 200 is used for installing the air cooling screen 210, and the air cooling screen 210 is used for crystal pulling.
Referring to fig. 1 again, in order to mount and fix the outer draft tube 100, the hollow stainless steel tube 120 and the solid stainless steel tube 130 are fixed on the middle furnace tube, and the ends of the hollow stainless steel tube 120 and the solid stainless steel tube 130 are used to be fixed in the middle furnace tube.
Referring to fig. 1 again, in order to improve the connection stability of the outer guide cylinder 100 to the inner guide cylinder 200, the top of the outer guide cylinder 100 is connected to the top of the inner guide cylinder 200 by a bolt, thread grooves are formed at the tops of the outer guide cylinder 100 and the inner guide cylinder 200, the bolt is connected to the thread grooves by a thread, and the bolt is used for stably connecting the outer guide cylinder 100 and the inner guide cylinder 200.
Referring to fig. 1 again, in order to form a flowing air flow in the inner cavity of the air cooling panel 210, the number of the hollow stainless steel tubes 120 and the number of the solid stainless steel tubes 130 are two, the left hollow stainless steel tube 120 is not shown in the figure in communication with the compressed air machine, the air flow is guided into the air cooling panel 210 by the left hollow stainless steel tube 120, the guided air flow is guided out through the other hollow stainless steel tube 120, and the air flow formed in the inner cavity of the air cooling panel 210 takes away heat in the inner cavity of the air cooling panel 210.
The hollow stainless steel tubes 120 and the solid stainless steel tubes 130 are not limited to the specific number described in the embodiment, and those skilled in the art can increase or decrease the number as required on the premise that the device can complete the function of preventing explosion of the single crystal furnace.
The working principle is as follows: the hollow stainless steel tube 120 and the solid stainless steel tube 130 are installed on the middle furnace barrel, high-temperature silicon is poured into the air cooling screen 210, the hollow stainless steel tube 120 at the left end is communicated with the air compressor, air flow generated in the air compressor is guided into an inner cavity of the air cooling screen 210 through the hollow stainless steel tube 120, the air flow is guided out through the other hollow stainless steel tube 120, heat emitted by a crystal is taken away by the air flow, and therefore safety accidents of a single crystal furnace are avoided.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. The utility model provides a draft tube, its characterized in that, includes outer draft tube (100) and interior draft tube (200), the lateral wall of outer draft tube (100) has solid stainless steel pipe (130) through welded fastening, the lateral wall of outer draft tube (100) is pegged graft and is had hollow stainless steel pipe (120), the inner chamber packing of outer draft tube (100) has soft felt (110), interior draft tube (200) are located in the inner chamber of outer draft tube (100), the inside wall of interior draft tube (200) is opened there is the dovetail groove, it has air cooling screen (210) to inlay in the dovetail groove, the lateral wall of air cooling screen (210) with the inside wall contact of outer draft tube (100), hollow stainless steel pipe (120) run through in proper order outer draft tube (100), soft felt (110) with outer draft tube (100) with air cooling screen (210) inner chamber intercommunication.
2. The draft tube of claim 1, wherein: the hollow stainless steel pipe (120) and the solid stainless steel pipe (130) are fixed on the middle furnace barrel.
3. The draft tube of claim 1, wherein: the top of the outer guide cylinder (100) is connected with the top of the inner guide cylinder (200) through bolts.
4. The draft tube of claim 1, wherein: the number of the hollow stainless steel tubes (120) and the number of the solid stainless steel tubes (130) are two, and the hollow stainless steel tubes (120) on the left side are communicated with a compressed air machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181567.8U CN210287578U (en) | 2019-07-25 | 2019-07-25 | Guide cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181567.8U CN210287578U (en) | 2019-07-25 | 2019-07-25 | Guide cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210287578U true CN210287578U (en) | 2020-04-10 |
Family
ID=70104350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921181567.8U Active CN210287578U (en) | 2019-07-25 | 2019-07-25 | Guide cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210287578U (en) |
-
2019
- 2019-07-25 CN CN201921181567.8U patent/CN210287578U/en active Active
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