CN218665735U - Sealing structure for crucible forming device and crucible forming device - Google Patents
Sealing structure for crucible forming device and crucible forming device Download PDFInfo
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- CN218665735U CN218665735U CN202223386082.7U CN202223386082U CN218665735U CN 218665735 U CN218665735 U CN 218665735U CN 202223386082 U CN202223386082 U CN 202223386082U CN 218665735 U CN218665735 U CN 218665735U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The utility model discloses a sealing structure for a crucible forming device and the crucible forming device, the sealing structure for the crucible forming device comprises a mould and a water cooling jacket sleeved in the mould, a vacuum cavity is arranged between the mould and the water cooling jacket, the sealing structure also comprises a liquid sealing runner positioned at the contact position of the mould and the water cooling jacket and a liquid injection runner for injecting sealing liquid into the liquid sealing runner, and the liquid sealing runner is communicated with the liquid injection runner to form a liquid storage cavity; and a sealing piece is arranged at a contact gap between the mold and the water cooling jacket. The joint of the mold and the water cooling sleeve is sealed by liquid and hard seals to realize double-layer sealing, and gas in the vacuum cavity is effectively sealed when the vacuum cavity is pumped so as to ensure that the gas in the vacuum cavity is completely pumped out, thereby ensuring the vacuum degree of the inner wall of the crucible mold and improving the production quality of the crucible.
Description
Technical Field
The utility model relates to a quartz crucible processing technology field, more specifically say, relate to a seal structure and a crucible forming device for crucible forming device.
Background
The quartz crucible is a processing tool used in the monocrystalline silicon industry, and is usually manufactured by an arc method. Generally, a water cooling jacket is arranged outside a crucible mold, quartz sand is laid on the inner wall of the mold, a vacuum cavity is formed between the inner wall of the water cooling jacket and the outer wall of the mold, the vacuum cavity is communicated with the inner wall of the mold through a through hole in the mold, vacuumizing equipment evacuates gas in the vacuum cavity, the vacuum degree of the inner wall of the mold is further improved, air in the quartz sand is evacuated, and a graphite sealing gasket is arranged between the water cooling jacket and the mold and used for preventing air leakage during vacuumizing of the vacuum cavity.
However, the contact gap between the water cooling sleeve and the mold is only sealed by the graphite sealing washer, and the mold and the water cooling sleeve are large in size, the graphite sealing washer is large in corresponding size, not easy to install, and often has the air leakage condition, the sealing effect is poor, so that in the crucible forming process, gas in a vacuum cavity cannot be effectively sealed when the vacuum cavity is pumped, and the gas leaks from the contact gap between the water cooling sleeve and the mold, so that the vacuum degree of the inner wall of the crucible mold is influenced, the crucible forming is influenced, and the crucible production quality is poor.
In summary, how to provide a sealing structure for a crucible forming device, which can effectively seal gas in a vacuum cavity and improve crucible production quality, is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a seal structure for crucible forming device, this seal structure can effectively seal the gaseous in the vacuum chamber, and gaseous from mould and water-cooling jacket clearance leakage when avoiding the vacuum chamber to bleed to improve crucible production quality.
Furthermore, the utility model aims at providing a crucible forming device of including above-mentioned seal structure for crucible forming device.
In order to achieve the above object, the present invention provides the following technical solutions:
a sealing structure for a crucible forming device comprises a mold and a water cooling sleeve sleeved in the mold, wherein a vacuum cavity is arranged between the mold and the water cooling sleeve, the sealing structure also comprises a liquid sealing runner positioned at the contact position of the mold and the water cooling sleeve and a liquid injection runner used for injecting sealing liquid into the liquid sealing runner, and the liquid sealing runner is communicated with the liquid injection runner to form a liquid storage cavity; and a sealing piece is arranged at a contact gap between the mold and the water cooling jacket.
Preferably, the sealing device further comprises an overflow runner for discharging redundant sealing liquid in the liquid sealing runner, the overflow runner is arranged in the mold and is communicated with the liquid sealing runner, an overflow port of the overflow runner is positioned on the side wall of the mold, and a cock is arranged at the overflow port of the overflow runner.
Preferably, the sealing device further comprises a liquid drainage channel for discharging sealing liquid in the liquid seal channel, the liquid drainage channel is arranged in the water cooling jacket and is communicated with the liquid seal channel, a liquid drainage port of the liquid drainage channel is located on the side wall of the water cooling jacket, and a cock is arranged at the liquid drainage port of the liquid drainage channel.
Preferably, the liquid injection runner is arranged in the die, a liquid injection port of the liquid injection runner is positioned at the top end of the die, and a cock is arranged at the liquid injection port of the liquid injection runner.
Preferably, an upper sealing groove is formed in the die, a lower sealing groove corresponding to the upper sealing groove is sleeved on the water cooling sleeve, and the upper sealing groove is communicated with the lower sealing groove to form the liquid sealing runner.
Preferably, a liquid blocking table is arranged at a position, close to the vacuum cavity, of the notch of the upper sealing groove, so that sealing liquid in the liquid sealing flow channel is prevented from flowing into the vacuum cavity.
Preferably, the medium of the sealing liquid is high-temperature heat conduction oil.
Preferably, the seal is a graphite gasket.
A crucible forming device comprises the sealing structure for the crucible forming device.
The utility model provides a sealing structure for a crucible forming device, which is used for preventing gas leakage in a vacuum cavity arranged between a mould and a water cooling jacket, and comprises the mould, the water cooling jacket, a liquid seal flow passage arranged on the mould and the water cooling jacket, and a liquid injection flow passage used for injecting sealing liquid into the liquid seal flow passage, wherein the liquid seal flow passage is communicated with the liquid injection flow passage to form a liquid storage cavity; and a sealing element is arranged at a contact gap between the die and the water cooling jacket.
In the structure, the liquid injection runner injects sealing liquid into the liquid seal runner, the liquid seal runner is communicated with the mould and the water cooling jacket to form a liquid storage cavity, the sealing liquid is arranged in the liquid storage cavity, when the crucible forming device operates, the mould and the water cooling jacket rotate at a certain angular speed, and the sealing liquid in the liquid storage cavity is attached to the side wall of the liquid seal runner under the action of centrifugal force so as to form liquid seal through the joint of the liquid seal mould and the water cooling jacket; in addition, sealing elements are arranged on two sides of the liquid seal flow channel and at the contact gap between the mold and the water cooling sleeve so as to further seal the joint of the mold and the water cooling sleeve, namely hard seal is formed, and meanwhile, the sealing elements are also used for sealing the liquid seal flow channel so as to prevent sealing liquid in the liquid seal flow channel from leaking. Therefore, the joint of the mold and the water cooling sleeve is sealed in a double-layer mode through liquid sealing and hard sealing, when the vacuum cavity is pumped, gas in the vacuum cavity cannot leak from the joint of the mold and the water cooling sleeve, the gas in the vacuum cavity is effectively sealed, so that the gas in the vacuum cavity is completely pumped out, the vacuum degree of the inner wall of the crucible mold is guaranteed, and the production quality of the crucible is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a sealing structure for a crucible forming device provided by the present invention before rotation and centrifugation;
fig. 2 is a schematic structural view of the sealing structure for the crucible forming device provided by the present invention after rotation and centrifugation;
fig. 3 is a schematic structural view of the crucible forming device provided by the present invention.
In the figures, the reference numerals include:
1 is a mould, 2 is a water cooling jacket, 3 is a vacuum cavity, 4 is a liquid sealing flow passage, 5 is a liquid injection flow passage, 6 is an overflow flow passage, 7 is a liquid drainage flow passage, 8 is a sealing element, and 9 is a liquid blocking platform.
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 core of the utility model is to provide a seal structure for crucible forming device, this seal structure can effectively seal the vacuum cavity intracavity gas, and gas leaks from mould and water-cooling jacket clearance when avoiding the vacuum cavity to bleed to improve crucible production quality.
In addition, the utility model also provides a crucible forming device comprising the sealing structure for the crucible forming device.
Referring to fig. 1 to 3, the present application provides a sealing structure for a crucible forming device, including a mold 1 and a water cooling jacket 2, which can prevent gas leakage in a vacuum cavity 3 between the mold 1 and the water cooling jacket 2, the sealing structure further including a liquid sealing flow channel 4 and a liquid injection flow channel 5 for injecting sealing liquid into the liquid sealing flow channel 4, the liquid sealing flow channel 4 being communicated with the liquid injection flow channel 5 to form a liquid storage cavity; and a sealing piece 8 is arranged at the contact gap between the mold 1 and the water cooling jacket 2 and used for sealing the contact gap between the mold 1 and the water cooling jacket 2 at two sides of the liquid seal flow channel 4.
Specifically, the crucible forming device comprises a mold 1 for placing quartz sand, a cold water jacket 2 for cooling and forming a crucible and a vacuum cavity 3 for pumping the quartz sand, wherein the water jacket 2 is sleeved outside the mold 1, the vacuum cavity 3 is arranged between the mold 1 and the water jacket 2, a sealing structure is arranged at the joint of the water jacket 2 and the mold 1, and when the vacuum cavity 3 pumps the air, the sealing structure is used for preventing the air in the vacuum cavity 3 from leaking from the joint of the water jacket 2 and the mold 1; seal structure includes liquid seal runner 4 and notes liquid runner 5, and liquid seal runner 4 and notes liquid runner 5 intercommunication, and liquid seal runner 4 intercommunication mould 1 forms the stock solution chamber with cold water cover 2, annotates liquid runner 5 and pours into sealed liquid and arrange the stock solution chamber in through liquid seal runner 4 into, and liquid seal runner 4 both sides and lie in mould 1 and cold water cover 2 contact gap department and be equipped with sealing member 8.
When the structure is used, the liquid injection runner 5 injects sealing liquid into the liquid seal runner 4, the sealing liquid is placed in the liquid storage cavity, when the crucible forming device operates, the mold 1 and the water cooling jacket 2 rotate at a certain angular speed, the sealing liquid in the liquid storage cavity is attached to the side wall of the liquid seal runner 4 under the action of centrifugal force, and liquid seal is formed at the joint of the liquid seal mold 1 and the water cooling jacket 2; in addition, sealing elements 8 are arranged on two sides of the liquid seal flow channel 4 and located at a contact gap between the mold 1 and the water cooling jacket 2 so as to further seal the joint between the mold 1 and the water cooling jacket 2, namely hard seal is formed, and meanwhile, the sealing elements 8 are also used for sealing the liquid seal flow channel 4 to prevent sealing liquid in the liquid seal flow channel 4 from leaking. Therefore, the joint of the mold 1 and the water cooling sleeve 2 is sealed in a double-layer mode through liquid sealing and hard sealing, when the vacuum cavity 3 is exhausted, gas in the vacuum cavity 3 cannot leak from the joint of the mold 1 and the water cooling sleeve 2, the gas in the vacuum cavity 3 is effectively sealed, all the gas in the vacuum cavity 3 is guaranteed to be exhausted, the vacuum degree of the inner wall of the crucible mold is further guaranteed, and the production quality of the crucible is improved.
On the basis of the embodiment, the sealing structure further comprises an overflow flow channel 6 used for discharging redundant sealing liquid in the liquid sealing flow channel 4, the overflow flow channel 6 is arranged in the mold 1 and is communicated with the liquid sealing flow channel 4, an overflow port of the overflow flow channel 6 is positioned on the side wall of the mold 1, and a cock is arranged at the overflow port of the overflow flow channel 6.
Specifically, the sealing structure further comprises an overflow flow passage 6 and is arranged in the mold 1, the overflow flow passage 6 is communicated with the liquid seal flow passage 4 and is used for discharging redundant sealing liquid in the liquid seal flow passage 4, the using amount of the sealing liquid in the liquid seal flow passage 4 can be controlled, and the sealing effect of the joint of the mold 1 and the water cooling jacket 2 is prevented from being influenced by the redundant sealing liquid in the liquid seal flow passage 4; the overflow mouth of the overflow runner 6 is arranged on the side wall of the mould 1 so as to facilitate the overflow of the sealing liquid in the liquid sealing runner 4, and the overflow mouth is provided with a cock, so that when the crucible forming device works, the sealing liquid is prevented from flowing out from the overflow mouth to influence the sealing effect.
On the basis of the above embodiment, the sealing structure further comprises a liquid drainage flow channel 7 for discharging sealing liquid in the liquid seal flow channel 4, the liquid drainage flow channel 7 is arranged in the water cooling jacket 2 and is communicated with the liquid seal flow channel 4, a liquid drainage port of the liquid drainage flow channel 7 is positioned on the side wall of the water cooling jacket 2, and a cock is arranged on the liquid drainage port.
Specifically, the sealing structure further comprises a liquid drainage flow channel 7, the liquid drainage flow channel 7 is arranged in the water cooling jacket 2 and is communicated with the liquid seal flow channel 4, the water cooling jacket 2 is sleeved outside the mold 1, and the water cooling jacket 2 is positioned below the mold 1 at the joint with the mold 1, so that a liquid drainage port of the liquid drainage circulation 6 is arranged on the side wall of the water cooling jacket 2, sealing liquid in the liquid seal flow channel 4 can be conveniently drained, and when the liquid seal flow channel 4 needs to be completely drained, the liquid drainage circulation 6 can ensure that the sealing liquid in the liquid seal flow channel 4 is completely drained according to the flowing characteristic of liquid to the lower part; and a cock is arranged at the liquid discharge port of the liquid discharge flow channel 7, so that when the crucible forming device works, sealing liquid is prevented from flowing out of the liquid discharge port to influence the sealing effect.
In addition to the above embodiment, the liquid injection runner 5 is disposed in the mold 1, and the liquid injection port of the liquid injection runner 5 is located at the top end of the mold 1, and the liquid injection port of the liquid injection runner 5 is provided with a cock.
Specifically, 1 top department of mould is equipped with the notes liquid mouth of annotating liquid runner 5 to sealed liquid flows in according to the action of gravity and annotates liquid runner 5, because liquid seal runner 4 intercommunication mould 1 and water-cooling jacket 2, so annotate liquid runner 5 and set up in mould 1, conveniently annotate in liquid runner 5 sealed liquid flows in liquid seal runner 4, and annotate the liquid mouth of liquid runner 5 and be equipped with the cock, in the crucible forming device during operation, avoid sealed liquid to flow from the leakage fluid dram and influence sealed effect.
On the basis of the above embodiment, an upper sealing groove is arranged in the die 1, the water cooling jacket 2 is provided with a lower sealing groove corresponding to the upper sealing groove, and the upper sealing groove is communicated with the lower sealing groove to form a liquid sealing flow passage 4.
Specifically, the sealing structure is arranged at the joint of the die 1 and the water cooling jacket 2, so that the liquid sealing runner 4 is communicated with the die 1 and the water cooling jacket 2 at the joint of the die 1 and the water cooling jacket 2, an upper sealing groove is arranged in the die 1, a lower sealing groove is arranged at the position of the water cooling jacket 2 corresponding to the upper sealing groove, a notch of the upper sealing groove is communicated with a notch of the lower sealing groove, and the upper position and the lower position of the notch correspond to form the liquid sealing runner 4, namely the liquid sealing runner 4 is a vertical runner, and after sealing liquid flows into the liquid sealing runner 4 from the liquid injection runner 5, the sealing liquid can be rapidly stored in the lower sealing groove, namely a liquid storage cavity; in addition, the vertical liquid seal flow channel 4 can ensure that the sealing liquid is fully attached to the side wall of the liquid seal flow channel 4 under the action of centrifugal force.
On the basis of the above embodiment, a liquid blocking table 9 is arranged at the notch of the upper sealing groove and near the vacuum cavity 3 to prevent the sealing liquid in the liquid sealing flow passage 4 from flowing into the vacuum cavity 3.
Specifically, the notch of the upper sealing groove is provided with a liquid blocking platform 9, the liquid blocking platform is positioned above the notch of the lower sealing groove, the liquid blocking platform 9 is arranged at a position close to the vacuum cavity 3, and sealing liquid in the liquid sealing flow channel 4 is prevented from flowing into the vacuum cavity 3 due to overlarge centrifugal force.
On the basis of the above embodiment, the medium of the sealing liquid is high-temperature heat conduction oil. When the crucible forming device operates, the temperature of the mold 1 and the cooling jacket 2 is high, the oil seal is relatively to the water seal, the gas tightness is higher, the friction between the mold 1 and the cooling jacket 2 can be reduced, and therefore the sealing medium is selected as high-temperature heat conduction oil.
Optionally, the type of the sealing liquid of this application is not unique, can choose other types of sealing liquid according to actual demand to effectively seal the mould 1 and the cooling jacket 2 junction is the target.
On the basis of the above embodiment, the sealing member 8 is a graphite gasket. On the basis of liquid sealing, the sealing performance of the joint of the die 1 and the cooling jacket 2 is further enhanced, and the graphite gasket which is commonly applied and convenient to install is selected as the sealing element 8.
Optionally, the type of the sealing member 8 of the present application is not unique, and can be selected according to actual needs.
In addition, the utility model also provides a crucible forming device of seal structure including above-mentioned being used for crucible forming device. The crucible forming device comprises the sealing structure for the crucible forming device provided in any one of the above embodiments, and other parts of the crucible forming device refer to the prior art.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sealing structure and the crucible forming device for the crucible forming device provided by the utility model are introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. The sealing structure for the crucible forming device is characterized by comprising a mold (1), a water cooling sleeve (2) sleeved in the mold (1), a vacuum cavity (3) arranged between the mold (1) and the water cooling sleeve (2), a liquid sealing runner (4) positioned at the contact position of the mold (1) and the water cooling sleeve (2) and a liquid injection runner (5) used for injecting sealing liquid into the liquid sealing runner (4), wherein the liquid sealing runner (4) is communicated with the liquid injection runner (5) to form a liquid storage cavity; and a sealing element (8) is arranged at a contact gap between the die (1) and the water cooling jacket (2).
2. The sealing structure for the crucible forming device according to claim 1, further comprising an overflow runner (6) for discharging an excess sealing liquid in the liquid sealing runner (4), wherein the overflow runner (6) is provided in the mold (1) and is communicated with the liquid sealing runner (4), an overflow port of the overflow runner (6) is located on a side wall of the mold (1), and an overflow port of the overflow runner (6) is provided with a cock.
3. The sealing structure for the crucible forming device according to claim 1, further comprising a liquid drainage flow channel (7) for discharging the sealing liquid in the liquid sealing flow channel (4), wherein the liquid drainage flow channel (7) is arranged in the water cooling jacket (2) and is communicated with the liquid sealing flow channel (4), a liquid drainage port of the liquid drainage flow channel (7) is positioned at the side wall of the water cooling jacket (2), and a cock is arranged at the liquid drainage port of the liquid drainage flow channel (7).
4. A sealing structure for a crucible forming device according to any one of claims 1 to 3, characterized in that the liquid injection runner (5) is provided in the mold (1), and a liquid injection port of the liquid injection runner (5) is located at the top end of the mold (1), and the liquid injection port of the liquid injection runner (5) is provided with a cock.
5. The sealing structure for the crucible forming device as claimed in claim 4, wherein an upper sealing groove is provided in the mold (1), and the water cooling jacket (2) is provided with a lower sealing groove corresponding to the upper sealing groove, and the upper sealing groove is communicated with the lower sealing groove to form the liquid sealing runner (4).
6. The sealing structure for the crucible forming device as claimed in claim 5, wherein a liquid blocking table (9) is provided at the notch of the upper sealing groove and near the vacuum chamber (3) to prevent the sealing liquid in the liquid sealing flow passage (4) from flowing into the vacuum chamber (3).
7. A sealing structure for a crucible forming device according to any one of claims 1 to 3, wherein the medium of the sealing liquid is high temperature heat transfer oil.
8. A sealing structure for a crucible forming apparatus according to any one of claims 1 to 3, characterized in that the sealing member (8) is a graphite gasket.
9. A crucible forming apparatus, characterized by comprising the sealing structure for a crucible forming apparatus as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386082.7U CN218665735U (en) | 2022-12-16 | 2022-12-16 | Sealing structure for crucible forming device and crucible forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386082.7U CN218665735U (en) | 2022-12-16 | 2022-12-16 | Sealing structure for crucible forming device and crucible forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218665735U true CN218665735U (en) | 2023-03-21 |
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ID=85549912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223386082.7U Active CN218665735U (en) | 2022-12-16 | 2022-12-16 | Sealing structure for crucible forming device and crucible forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218665735U (en) |
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2022
- 2022-12-16 CN CN202223386082.7U patent/CN218665735U/en active Active
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