CN219829517U - Airtight structure in oxidation furnace body - Google Patents
Airtight structure in oxidation furnace body Download PDFInfo
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- CN219829517U CN219829517U CN202320949868.0U CN202320949868U CN219829517U CN 219829517 U CN219829517 U CN 219829517U CN 202320949868 U CN202320949868 U CN 202320949868U CN 219829517 U CN219829517 U CN 219829517U
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- Prior art keywords
- pipe
- airtight
- gas
- vent hole
- air
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- 230000003647 oxidation Effects 0.000 title claims abstract description 48
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 description 9
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Abstract
The utility model relates to the field of oxidizing furnaces and discloses an airtight structure in an oxidizing furnace body, which comprises an oxidizing furnace body and an airtight pipe, wherein the airtight pipe is fixedly arranged on the oxidizing furnace body, a fixed seat is fixedly arranged in the airtight pipe, a vent hole is formed in the fixed seat, the front side of the fixed seat is arranged on a movable seat, an air cavity is formed in the movable seat, an air pipe is fixedly arranged on the rear side wall of the movable seat, the air pipe is communicated with the air cavity, the rear end of the air pipe extends into the vent hole, an air outlet hole positioned on the front side of the fixed seat is formed in the bottom of the airtight pipe, an air outlet pipe is fixedly arranged in the air outlet hole, the top end of the air outlet pipe extends out of the air outlet hole, and a round hole is formed in the inner wall of the bottom of the air cavity. The utility model has the following advantages and effects: when the airtight pipe is used for conveying gas, the phenomenon that the gas flows back in the airtight pipe can be effectively prevented, and the sealing performance of the oxidation furnace body during use is improved.
Description
Technical Field
The utility model relates to the technical field of oxidation furnaces, in particular to an airtight structure in a furnace body of an oxidation furnace.
Background
In the whole process flow for preparing the high-performance carbon fiber, the pre-oxidation process is an important and key step, and the pre-oxidation equipment is used as a device for realizing the pre-oxidation process and is the basis of the whole carbon fiber preparation process. In the whole carbon fiber preparation process, the pre-oxidation time is longest, so that the processing efficiency of the process is improved, and the method plays a vital role in improving the processing efficiency of the process and the production efficiency of the whole carbon fiber preparation.
The oxidation furnace mainly completes the oxidation of the semiconductor components, so that the surfaces of the components form a required oxidation film under the reaction of certain temperature and atmosphere, and meanwhile, the oxidation furnace can be used as processes of sintering, annealing, brazing and the like of the components, and has the characteristics of wide application, safety, reliability, high control precision and the like. When the oxidation furnace is used, the airtight structure in the furnace body is particularly important, and the airtight structure is used for preventing hot air in the middle furnace body from being dissipated and external cold air from being leaked into the furnace body.
When the conventional oxidation furnace is used, when the airtight pipe is used for conveying gas into the oxidation furnace body, the airtight pipe has poor non-return effect on the gas flowing, and the phenomenon that the gas flows back in the airtight pipe easily occurs, so that the sealing performance of the oxidation furnace is not ideal when the oxidation furnace is used.
Therefore, it is necessary to design an airtight structure in the oxidation oven body which can effectively prevent the backflow phenomenon of gas in the airtight tube and improve the sealing performance of the oxidation oven body when in use.
Disclosure of Invention
The utility model aims to provide an airtight structure in an oxidation furnace body, which has the effects of effectively preventing gas from flowing back in an airtight pipe and effectively improving sealing performance.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides an airtight structure in oxidation oven furnace body, includes oxidation oven body and airtight pipe, airtight pipe fixed mounting is on oxidation oven body, airtight intraductal fixed mounting has the fixing base, the air vent has been seted up on the fixing base, the front side setting of fixing base is at the removal seat, the air cavity has been seted up in the removal seat, fixed mounting has the gas-supply pipe on the back lateral wall of removal seat, the gas-supply pipe is linked together with the air cavity, the rear end of gas-supply pipe extends to in the air vent, the venthole that is located the fixing base front side has been seted up on the bottom inside of airtight pipe, fixed mounting has the outlet duct in the venthole, the top of outlet duct extends to outside the venthole, the round hole has been seted up on the bottom inner wall of air cavity, the round hole is located between fixing base and the venthole, be provided with reset assembly on the fixing base, reset assembly is used for controlling and removes seat self return.
Through adopting above-mentioned technical scheme, set up air vent and gas-supply pipe and can carry the gas in the airtight pipe to the air cavity in, the round hole is used for discharging the air in the air cavity, utilizes the outlet duct, can discharge the gas into the oxidation stove is originally internal, utilizes reset assembly, steerable movable seat is automatic to return to normal position and fixing base contact.
The utility model is further provided with: the reset assembly comprises two guide rods and two springs, wherein the two guide grooves are formed in the front side of the fixed seat, the vent holes are located between the two guide grooves, the two guide rods are respectively and slidably installed in the corresponding guide grooves, the front ends of the two guide rods are fixedly connected with the rear side wall of the movable seat, the rear ends of the two springs are respectively and fixedly connected with the rear side inner wall of the corresponding guide groove, and the front ends of the two springs are respectively and fixedly connected with the rear ends of the corresponding guide rods.
Through adopting above-mentioned technical scheme, utilize the sliding connection cooperation of guide bar in the guide way, play the effect of guiding the direction of movement to remove the seat for remove the seat and can steadily carry out horizontal migration, utilize the elasticity effect of spring, steerable guide bar returns to the guide way in and resets, and then control removes the seat and reset.
The utility model is further provided with: the inner wall of the vent hole is fixedly provided with a first sealing ring, and the gas pipe is in sliding sealing contact with the vent hole through the first sealing ring.
By adopting the technical scheme, the gap between the vent hole and the outer pipe wall of the gas pipe can be sealed by utilizing the first sealing ring.
The utility model is further provided with: the gas pipe is fixedly sleeved with a circular ring positioned behind the first sealing ring, the top inner wall and the bottom inner wall of the vent hole are fixedly provided with stop blocks, and the stop blocks are positioned between the first sealing ring and the circular ring.
Through adopting above-mentioned technical scheme, utilize the cooperation of ring and dog to use, can carry out spacingly to the travel of gas-supply pipe, and then inject the travel of moving the seat.
The utility model is further provided with: the front side fixed mounting of fixing base has the shielding plate that is located the removal seat below, and the top of shielding plate and the bottom sliding contact who removes the seat, and the preceding lateral wall of shielding plate contacts with the outlet duct.
By adopting the technical scheme, the round hole can be plugged by using the shielding plate.
The utility model is further provided with: the top of the air outlet pipe is fixedly provided with a second sealing ring, and the top of the second sealing ring is in sliding sealing contact with the bottom of the movable seat.
By adopting the technical scheme, the gap between the air outlet pipe and the movable seat can be sealed by utilizing the second sealing ring.
The beneficial effects of the utility model are as follows:
1. according to the utility model, through the arrangement of the vent holes and the air delivery pipe, the air flowing in the airtight pipe can be controlled to enter the air cavity, the air pressure in the air cavity is gradually increased along with the increasing of the air entering the air cavity, the movable seat can be pushed to drive the air delivery pipe, the circular ring and the two guide rods to horizontally move forwards, at the moment, the two springs are subjected to stretching deformation, when the circular ring moves forwards to be in contact with the stop block, at the moment, the circular hole moves to the position right above the air outlet pipe, and the air in the cavity enters the furnace body of the oxidation furnace body through the air outlet pipe, so that the purpose of supplying air into the furnace body of the oxidation furnace body is realized.
2. According to the utility model, the reset assembly formed by combining the two guide rods and the two springs is utilized, when the gas stops flowing in the airtight pipe, the movable seat can be controlled to drive the gas pipe, the circular ring and the two guide rods to horizontally retract to the original position, so that the gas in the furnace body of the oxidation furnace body cannot flow back into the airtight pipe, the purpose that the gas can flow in the airtight pipe in a unidirectional way is realized, the hot air in the furnace body can be effectively prevented from being dissipated, the external cold air can be effectively prevented from being leaked into the furnace body, and the sealing performance of the oxidation furnace body in use is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present embodiment.
Fig. 2 is a schematic view of a partially sectional structure in front view of the present embodiment.
Fig. 3 is an enlarged schematic view of the portion a in fig. 2.
Fig. 4 is a schematic side sectional structure of the airtight tube.
In the figure, 1, an oxidation furnace body; 2. an airtight tube; 3. a fixing seat; 4. a vent hole; 5. a movable seat; 6. an air cavity; 7. a gas pipe; 8. an air outlet hole; 9. an air outlet pipe; 10. a round hole; 11. a guide groove; 12. a guide rod; 13. a spring; 14. a first seal ring; 15. a circular ring; 16. a stop block; 17. a shielding plate; 18. and a second seal ring.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Referring to fig. 1, 2, 3 and 4, the present utility model provides an airtight structure in an oxidation oven body, comprising: oxidation oven body 1 and airtight pipe 2, airtight pipe 2 fixed mounting is on oxidation oven body 1, wherein:
the airtight pipe 2 is fixedly provided with the fixing seat 3, the vent hole 4 is formed in the fixing seat 3, the front side of the fixing seat 3 is arranged between the fixing seat 3 and the vent hole 8, the fixing seat 3 is provided with the air cavity 6, the rear side wall of the moving seat 5 is fixedly provided with the air pipe 7, the air pipe 7 is communicated with the air cavity 6, the rear end of the air pipe 7 extends into the vent hole 4, the bottom inside of the airtight pipe 2 is provided with the vent hole 8 positioned at the front side of the fixing seat 3, the air outlet pipe 8 is fixedly provided with the air outlet pipe 9, the top end of the air outlet pipe 9 extends out of the air outlet hole 8, the bottom inner wall of the air cavity 6 is provided with the round hole 10, the round hole 10 is positioned between the fixing seat 3 and the air outlet hole 8, the fixing seat 3 is provided with the reset component, the reset component is used for controlling the moving seat 5 to automatically reset, the reset component comprises two guide rods 12 and two springs 13, the front side of the fixing seat 3 is provided with two guide grooves 11, the vent hole 4 is positioned between the two guide grooves 11, the two guide rods 12 are respectively and slidably mounted in the corresponding guide grooves 11, the front ends of the two guide rods 12 are respectively connected with the rear side walls of the corresponding guide grooves 13 fixedly connected with the rear side walls of the two guide rods 13 respectively.
Specifically, a first sealing ring 14 is fixedly installed on the inner wall of the vent hole 4, and the air pipe 7 is in sliding sealing contact with the vent hole 4 through the first sealing ring.
Specifically, the gas pipe 7 is fixedly sleeved with a circular ring 15 located behind the first sealing ring 14, the top inner wall and the bottom inner wall of the vent hole 4 are fixedly provided with a stop block 16, the stop block 16 is located between the first sealing ring 14 and the circular ring 15, the vertical distance between the stop block 16 and the circular ring 15 is identical to the horizontal vertical distance between the round hole 10 and the gas outlet pipe 9, and when the circular ring 15 moves to be in contact with the stop block 16, the round hole 10 is located right above the gas outlet pipe 9.
Specifically, the front side of the fixed seat 3 is fixedly provided with a shielding plate 17 positioned below the movable seat 5, the top of the shielding plate 17 is in sliding contact with the bottom of the movable seat 5, and the front side wall of the shielding plate 17 is in contact with the air outlet pipe 9.
Specifically, a second sealing ring 18 is fixedly arranged at the top of the air outlet pipe 9, and the top of the second sealing ring 18 is in sliding sealing contact with the bottom of the movable seat 5.
Through the structure, when the airtight pipe 2 is utilized to convey gas, the airtight structure in the oxidation furnace body can effectively prevent the gas from flowing back in the airtight pipe 2, the sealing performance of the oxidation furnace body is improved when the oxidation furnace body is used, in particular operation, when the oxidation furnace body 1 is used, during the process of controlling the gas to flow in the airtight pipe 2, the gas enters the air cavity 6 through the vent holes 4 and the gas pipe 7, the gas pressure in the air cavity 6 is gradually increased along with the increasing of the gas entering the air cavity 6, the gas pressure of the gas can be utilized to push the movable seat 5 to drive the gas pipe 7, the circular ring 15 and the two guide rods 12 to horizontally move forwards, at the moment, the two springs 13 are stretched and deformed, when the circular ring 15 moves forwards to be in contact with the stop block 16, the movable seat 5 does not move forwards any more, at this moment, the round hole 10 moves to the position right above the air outlet pipe 9, at this moment, air in the air cavity 6 enters the furnace body of the oxidation furnace body 1 through the air outlet pipe 9, when the air stops flowing in the airtight pipe 2, the air pressure in the air cavity 6 disappears, under the elastic force of the two springs 13, the movable seat 5 can be controlled to drive the air conveying pipe 7, the circular ring 15 and the two guide rods 12 to horizontally retract to the original position, at this moment, the movable seat 5 is in contact with the fixed seat 3, the round hole 10 is blocked by the shielding plate 17, the air outlet pipe 9 is blocked by the bottom of the movable seat 5 through the second sealing ring 18, and then the air in the furnace body of the oxidation furnace body 1 can not flow back into the airtight pipe 2, so that the air can only flow in one direction in the airtight pipe 2 is realized, and the dissipation of hot air in the furnace body and the leakage of external cold air into the furnace body can be effectively prevented.
The airtight structure in the oxidation oven body provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (6)
1. The utility model provides an airtight structure in oxidation oven furnace body, its characterized in that, is in including oxidation oven body (1) and airtight pipe (2), airtight pipe (2) fixed mounting is in on oxidation oven body (1), fixed mounting has fixing base (3) in airtight pipe (2), vent hole (4) have been seted up on fixing base (3), the front side setting of fixing base (3) is outside moving seat (5), air cavity (6) have been seted up in moving seat (5), fixed mounting has gas-supply pipe (7) on the back lateral wall of moving seat (5), gas-supply pipe (7) with air cavity (6) are linked together, the rear end of gas-supply pipe (7) extends to in vent hole (4), set up on the bottom inside of airtight pipe (2) and be located vent hole (8) of fixing base (3), fixed mounting has outlet duct (9) in vent hole (8), the top of outlet duct (9) extends to outside vent hole (8), set up on the bottom inner wall of moving seat (6) has gas-supply pipe (10) be linked together, reset and be used for setting up between fixing base (3) and reset assembly (5).
2. The airtight structure in an oxidation oven body according to claim 1, wherein: the reset assembly comprises two guide rods (12) and two springs (13), wherein two guide grooves (11) are formed in the front side of the fixed seat (3), the vent holes (4) are formed in the two guide grooves (11), the two guide rods (12) are respectively and slidably mounted in the corresponding guide grooves (11), the front ends of the two guide rods (12) are fixedly connected with the rear side wall of the movable seat (5), the rear ends of the two springs (13) are respectively and fixedly connected with the rear side inner walls of the corresponding guide grooves (11), and the front ends of the two springs (13) are respectively and fixedly connected with the rear ends of the corresponding guide rods (12).
3. The airtight structure in an oxidation oven body according to claim 1, wherein: the inner wall of the vent hole (4) is fixedly provided with a first sealing ring (14), and the gas transmission pipe (7) is in sliding sealing contact with the vent hole (4) through the first sealing ring (14).
4. A gas-tight structure in an oxidation oven body according to claim 3, characterized in that: the gas pipe (7) is fixedly sleeved with a circular ring (15) positioned behind the first sealing ring (14), the top inner wall and the bottom inner wall of the vent hole (4) are fixedly provided with stop blocks (16), and the stop blocks (16) are positioned between the first sealing ring (14) and the circular ring (15).
5. The airtight structure in an oxidation oven body according to claim 1, wherein: the front side of the fixed seat (3) is fixedly provided with a shielding plate (17) positioned below the movable seat (5), the top of the shielding plate (17) is in sliding contact with the bottom of the movable seat (5), and the front side wall of the shielding plate (17) is in contact with the air outlet pipe (9).
6. The airtight structure in an oxidation oven body according to claim 1, wherein: the top of the air outlet pipe (9) is fixedly provided with a second sealing ring (18), and the top of the second sealing ring (18) is in sliding sealing contact with the bottom of the movable seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949868.0U CN219829517U (en) | 2023-04-25 | 2023-04-25 | Airtight structure in oxidation furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949868.0U CN219829517U (en) | 2023-04-25 | 2023-04-25 | Airtight structure in oxidation furnace body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829517U true CN219829517U (en) | 2023-10-13 |
Family
ID=88248371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320949868.0U Active CN219829517U (en) | 2023-04-25 | 2023-04-25 | Airtight structure in oxidation furnace body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829517U (en) |
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2023
- 2023-04-25 CN CN202320949868.0U patent/CN219829517U/en active Active
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