CN215176880U - Cooling mechanism for preventing gas leakage of heat preservation furnace - Google Patents
Cooling mechanism for preventing gas leakage of heat preservation furnace Download PDFInfo
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- CN215176880U CN215176880U CN202120995256.6U CN202120995256U CN215176880U CN 215176880 U CN215176880 U CN 215176880U CN 202120995256 U CN202120995256 U CN 202120995256U CN 215176880 U CN215176880 U CN 215176880U
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Abstract
The utility model relates to a heat preservation stove cooling body technical field, concretely relates to a cooling body for preventing heat preservation stove gas leakage, it includes heat preservation stove, furnace cover board, the furnace cover board is installed in the top of heat preservation stove, the top fixedly connected with medium plate of furnace cover board the bottom in the medium plate is fixed in the top embedding of furnace cover board, the top of furnace cover board, bottom are equipped with the recess around furnace cover board a week distributes, the recess intussuseption is filled with the sealing washer, the inside of furnace cover board is equipped with circulation water cooling body, circulation water cooling body includes water inlet, delivery port, circulation runner, inside the furnace cover board is located to the circulation runner, just the circulation runner distributes along furnace cover board peripheral a week.
Description
Technical Field
The utility model relates to a heat preservation stove cooling body technical field especially relates to a cooling body for preventing heat preservation stove gas leakage.
Background
In the prior differential pressure casting equipment, a holding furnace is a carrier for containing alloy melt and keeping warm, and in the working state of the holding furnace, because the temperature of the metal melt is very high, for example, the temperature of the aluminum alloy melt is as high as 900 ℃, and much heat is radiated to the periphery, the temperature of peripheral parts, particularly parts close to a crucible opening and a liquid lifting pipe is higher, especially a furnace cover plate for sealing the holding furnace, the absorbed heat is much at the top of the holding furnace, the temperature rise is very large, the external temperature of the furnace cover plate reaches 90-100 ℃, so that the sealing cover plate is subjected to large thermal deformation at high temperature, a large gap is generated between the sealing cover plate and the upper surface of the holding furnace, and the sealing property is very poor.
The existing solution is to select a material with small thermal deformation for the sealing cover plate, but the manufacturing cost is high, and the effect is not ideal; the sealing ring is made of high-temperature-resistant fluororubber, but the fluororubber is quick in aging at high temperature, and the problem of gap leakage caused by thermal deformation of the sealing cover plate cannot be thoroughly solved.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cooling mechanism for preventing gas leakage of a holding furnace, which mainly solves the problem of gas leakage caused by uneven temperature change in the whole range of a furnace cover plate due to the absorption of heat dissipated by molten metal in the casting process of the holding furnace; meanwhile, the performance of the sealing ring is aged quickly in a high-temperature environment.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a cooling body for preventing heat preservation stove gas leakage, includes heat preservation stove, furnace cover board, the furnace cover board is installed in the top of heat preservation stove, the top fixedly connected with medium plate of furnace cover board, the bottom in the top embedding of furnace cover board is fixed in the medium plate, the top of furnace cover board, bottom are equipped with the recess that distributes around furnace cover board a week, the recess intussuseption is filled with the sealing washer, the inside of furnace cover board is equipped with circulation water cooling mechanism, circulation water cooling mechanism includes water inlet, delivery port, circulation runner, inside the furnace cover board is located to the circulation runner, just the circulation runner distributes along furnace cover board peripheral a week.
Furthermore, guide posts are arranged on the periphery of the furnace cover plate and the middle plate, the guide posts are fixedly connected to the outer portion of the heat preservation furnace, a crucible is fixedly connected to the inner portion of the heat preservation furnace, and resistance wires are distributed on the periphery of the crucible.
Furthermore, a liquid lifting pipe is arranged inside the middle plate, penetrates through the middle plate and the furnace cover plate from top to bottom, and the bottom of the liquid lifting pipe extends into the crucible.
Furthermore, a first sealing cushion layer is fixedly connected to the joint of the lift pipe and the middle plate.
Furthermore, a second sealing cushion layer is fixedly connected between the middle plate and the furnace cover plate.
To sum up, the utility model discloses following beneficial effect has:
the utility model makes full use of the conditions of the heat preservation furnace of the differential pressure casting equipment in working and non-working states, so that the structure is simple and reliable, the cooling system is automatically operated in the working state of the heat preservation furnace, most heat of the heat preservation furnace can be taken away by circulating cooling water, the temperature rise of the heat preservation furnace is in a reasonable range, the cover plate of the heat preservation furnace is ensured not to deform or deform less, and the sealing is ensured to be reliable;
the utility model discloses in, the cooling pore of furnace cover board is inside, and the outside only is equipped with one and advances one and go out two interfaces to cooling pump station system is linked to the hose, basically does not occupy equipment working space, and the operation is reliable, and the cooling effect is relatively good.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
fig. 1 is a front view of the present invention;
FIG. 2 is a top view of the cover plate of the middle furnace of the present invention;
fig. 3 is an enlarged schematic view of the present invention at I in fig. 1.
In the figure, 1, middle plate; 2. a furnace cover plate; 3. a riser tube; 4. a crucible; 5. a holding furnace; 6. a water inlet; 7. a water outlet; 8. a circulating flow passage; 9. a seal ring; 10. a guide post; 11. a resistance wire; 12. a first seal cushion layer; 13. a second gasket layer.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1 to 3, a cooling body for preventing heat preservation stove gas leakage, including heat preservation stove 5, stove apron 2 is installed in heat preservation stove 5's top, stove apron 2's top fixedly connected with medium plate 1, the bottom in medium plate 1 is fixed in stove apron 2's top embedding, stove apron 2's top, the bottom is equipped with the recess around 2 a week distributions of stove apron, the recess intussuseption is filled with sealing washer 9, stove apron 2's inside is equipped with circulation water cooling mechanism, circulation water cooling mechanism includes water inlet 6, delivery port 7, circulation runner 8, inside stove apron 2 is located to circulation runner 8, and circulation runner 8 distributes along 2 peripheral a week of stove apron.
A liquid lifting pipe 3 is arranged inside the middle plate 1, the liquid lifting pipe 3 penetrates through the middle plate 1 and the furnace cover plate 2 from top to bottom, and the bottom of the liquid lifting pipe 3 extends into the crucible 4.
The connection part of the riser pipe 3 and the middle plate 1 is fixedly connected with a first sealing cushion layer 12, a second sealing cushion layer 13 is fixedly connected between the middle plate 1 and the furnace cover plate 2, and the first sealing cushion layer 12 and the second sealing cushion layer 13 simultaneously form sealing protection for the middle plate 1.
The utility model discloses an among the embodiment, holding furnace 5 is when unoperated state, and furnace cover plate 2 shifts up under the drive of medium plate 1 and breaks away from holding furnace 5, and holding furnace 5 can leave or get into operating position this moment to change the molten metal, make casting preparation work.
The casting process adopts a differential pressure casting principle, namely high-pressure gas is introduced above the crucible 4 in the holding furnace 5, and the liquid is lifted by overcoming the gravity of molten metal by the pressure of the gas.
When the holding furnace 5 is in a working state, the middle plate 1 drives the furnace cover plate 2 to move downwards, and the two sealing rings 9 embedded at the bottom and the upper part of the furnace cover plate 2 are respectively sealed with the top surface of the holding furnace 5 and the bottom surface of the middle plate 1 under the action of certain pressure to prevent gas leakage.
The heat of the molten metal in the crucible 4 is continuously radiated outwards and absorbed by the furnace cover plate 2 to generate deformation, the whole absorbed heat of the furnace cover plate 2 is not uniform, the whole deformation generated is not uniform, and a gap is generated between the furnace cover plate 2 and the heat preservation furnace 5 and the middle plate 1 to cause gas leakage.
When the temperature of the furnace cover rises, cooling water enters the annular pore channel inside the furnace cover plate 2 from the water inlet 6 and forms single circulation, the cooling water is discharged from the water outlet 7 after absorbing heat, the speed of discharging hot water ensures that the heat and the cooling effect of the furnace cover are fully absorbed, and the cooling water can be recycled.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (5)
1. The utility model provides a cooling body for preventing heat preservation stove gas leakage, includes heat preservation stove (5), stove apron (2), the top in heat preservation stove (5), its characterized in that are installed in stove apron (2): the top fixedly connected with medium plate (1) of stove apron (2), the top embedding of stove apron (2) is fixed in the bottom in medium plate (1), the top, the bottom of stove apron (2) are equipped with the recess that distributes around stove apron (2) a week, the recess intussuseption is filled with sealing washer (9), the inside of stove apron (2) is equipped with circulation water cooling mechanism, circulation water cooling mechanism includes water inlet (6), delivery port (7), circulation runner (8), inside stove apron (2) is located in circulation runner (8), just circulation runner (8) distribute along the peripheral a week of stove apron (2).
2. The cooling mechanism for preventing a holding furnace gas from leaking according to claim 1, wherein: guide posts (10) are installed around the furnace cover plate (2) and the middle plate (1), the guide posts (10) are fixedly connected to the outer portion of the heat preservation furnace (5), a crucible (4) is fixedly connected to the inner portion of the heat preservation furnace (5), and resistance wires (11) are distributed on the periphery of the crucible (4).
3. A cooling mechanism for preventing a holding furnace gas from leaking according to claim 2, characterized in that: the crucible furnace is characterized in that a liquid lifting pipe (3) is arranged inside the middle plate (1), the liquid lifting pipe (3) penetrates through the middle plate (1) and the furnace cover plate (2) from top to bottom, and the bottom of the liquid lifting pipe (3) extends into the crucible (4).
4. A cooling mechanism for preventing a holding furnace gas from leaking according to claim 3, characterized in that: and a first sealing cushion layer (12) is fixedly connected at the joint of the liquid lifting pipe (3) and the middle plate (1).
5. The cooling mechanism for preventing a holding furnace gas from leaking according to claim 4, wherein: and a second sealing cushion layer (13) is fixedly connected between the middle plate (1) and the furnace cover plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120995256.6U CN215176880U (en) | 2021-05-11 | 2021-05-11 | Cooling mechanism for preventing gas leakage of heat preservation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120995256.6U CN215176880U (en) | 2021-05-11 | 2021-05-11 | Cooling mechanism for preventing gas leakage of heat preservation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215176880U true CN215176880U (en) | 2021-12-14 |
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ID=79368480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120995256.6U Active CN215176880U (en) | 2021-05-11 | 2021-05-11 | Cooling mechanism for preventing gas leakage of heat preservation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215176880U (en) |
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2021
- 2021-05-11 CN CN202120995256.6U patent/CN215176880U/en active Active
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