CN214932707U - Air bag type sealing device for tank opening of train tank car - Google Patents
Air bag type sealing device for tank opening of train tank car Download PDFInfo
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- CN214932707U CN214932707U CN202121322794.5U CN202121322794U CN214932707U CN 214932707 U CN214932707 U CN 214932707U CN 202121322794 U CN202121322794 U CN 202121322794U CN 214932707 U CN214932707 U CN 214932707U
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- air bag
- cover plate
- outer layer
- open end
- sealing device
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Abstract
The utility model relates to a train tank car jar mouthful gasbag type sealing device belongs to jar mouthful sealed field, has solved the poor problem of the sealed effect of jar mouthful sealing device among the prior art. The air bag type sealing device comprises a cover plate, a support frame, an air bag and a connecting base; the bracket is arranged at the bottom of the cover plate and is used for supporting the air bag; the air bag consists of an inner layer and an outer layer, and one ends of the inner layer and the outer layer are connected with each other to form a connecting end; the other ends of the inner layer and the outer layer are respectively an inner layer open end and an outer layer open end, and the inner layer open end and the outer layer open end are respectively fixed at the bottom of the cover plate; the air bag and the cover plate form a closed cavity together; the connecting base is used for fixing the connecting end on the supporting frame. The invention meets the sealing requirement of the train tank mouth.
Description
Technical Field
The utility model relates to a jar mouthful sealed field, in particular to train tank car jar mouthful gasbag type sealing device.
Background
When the oil tank truck of the train in China loads and unloads oil products and chemical materials or cleans the tank truck, the generated oil gas and other gases of the chemical materials are not allowed to be discharged into the atmosphere, the gases are treated, and the tail gas can be discharged after reaching the standard.
The current train tank mouth is of a welding type, the tank mouth is not round and flat, a common sealing cap (cover) is difficult to achieve the sealing effect, oil gas leaks from the tank mouth, an oil gas recovery device cannot achieve the good treatment effect, a novel tank mouth sealing device is needed, and the oil gas is prevented from leaking from the tank mouth.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the utility model aims at providing a train tank car jar mouthful gasbag type sealing device for solve among the prior art the poor problem of jar mouthful sealing device sealing effect, the utility model discloses sealing device seals the effect better, makes simple and conveniently, can cooperate oil filling riser or tank car cleaning equipment to seal train jar mouth.
The purpose of the utility model is mainly realized through the following technical scheme:
an air bag type sealing device for a tank opening of a train tank car comprises a cover plate, a support frame, an air bag and a connecting base;
the bracket is arranged at the bottom of the cover plate and is used for supporting the air bag;
the air bag consists of an inner layer and an outer layer, and one ends of the inner layer and the outer layer are connected with each other to form a connecting end; the other ends of the inner layer and the outer layer are respectively an inner layer open end and an outer layer open end, and the inner layer open end and the outer layer open end are respectively fixed at the bottom of the cover plate; the air bag and the cover plate form a closed cavity together;
the connecting base is used for fixing the connecting end on the supporting frame.
Further, the support frame is of an annular structure and comprises a top ring, a side face and a bottom ring.
Further, the inner layer open end is pressed at the bottom of the cover plate through the top ring; the top ring and the inner layer open end are fixed at the bottom of the cover plate by the first fixing piece.
The outer layer open end is pressed at the bottom of the cover plate through the annular plate, and the second fixing piece fixes the annular plate and the outer layer open end at the bottom of the cover plate.
Furthermore, the connecting end is pressed at the bottom of the bottom ring through the connecting base, and the connecting base and the connecting end are fixed on the bottom ring through a third fixing piece.
Further, an air inlet is formed in the cover plate and is arranged between the inner-layer open end and the outer-layer open end.
Further, the outer layer and the outer layer are made of rubber.
Further, the outer layer is arranged in an inward bending mode.
Further, the cover plate is made of aluminum alloy material.
Furthermore, the connecting base is made of aluminum alloy material.
Compared with the prior art, the utility model discloses can realize one of following technological effect at least:
1) the utility model discloses sealing device's gasbag is aerifyd the back, and the gasbag is outer sealed with jar mouthful inner wall laminating, can reach good sealing performance, prevents that oil gas from leaking from jar mouthful. The utility model discloses the gasbag is two-layer inside and outside the opening type, and one end is connected, one end is open, and the gasbag of this kind of type is more easily made than whole inclosed gasbag.
2) The top ring and the annular plate are adopted to press the inner layer open end and the outer layer open end at the bottom of the cover plate respectively, and then the fixing piece is adopted for fixing, so that the air tightness of the air bag can be ensured, and the phenomenon that compressed air enters the air bag only by adopting point fixing and then enters the tank car through gaps between the inner layer open end and the cover plate and gaps between the outer layer open end and the cover plate is avoided.
3) And sealant is arranged between the cover plate and the inner layer open end and the outer layer open end, so that the sealing property of the air bag can be further ensured.
4) The side surface of the support frame is a continuous surface, and a closed space is formed between the inner layer of the air bag and the side surface. The inner layer of the air bag and the support frame form two sealing lines together, and after compressed air enters the air bag, even if the inner layer of the air bag has a leak to cause the compressed air to leak out of the air bag, the support frame and the outer layer of the air bag form a closed space, so that the compressed air can be further prevented from entering a tank car after leaking.
5) In order to enable the air bag to have larger deformation when being inflated, the service life is longer under the condition of meeting the use requirement, the outer layer of the air bag is arranged in an inward bending mode, and the inward bending mode is compared with the outward bending mode, so that the problem of larger occupied space can be avoided.
6) The cover plate and the connecting base are made of aluminum alloy materials, and sparks generated by collision with the tank opening are avoided.
The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.
FIG. 1 is a train tank car tank opening air bag type sealing device;
fig. 2 is a sealing effect diagram of the train tank car tank opening air bag type sealing device after being inflated.
Reference numerals:
1-cover plate; 2-a support frame; 201-top ring; 202-side; 203-bottom ring; 3-air bag; 301-inner layer; 302-an outer layer; 4-connecting the base; 5-an air inlet; 6-annular plate; 7-material inlet; 8-oil gas outlet.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.
An air bag type sealing device for a tank opening of a train tank car is shown in figure 1 and comprises a cover plate 1, a support frame 2, an air bag 3 and a connecting base 4; the bracket 2 is arranged at the bottom of the cover plate 1, and the bracket 2 is used for supporting the air bag 3; the airbag 3 consists of an inner layer 301 and an outer layer 302, and one ends of the inner layer 301 and the outer layer 302 are connected with each other to form a connecting end; the other ends of the inner layer 301 and the outer layer 302 are respectively an open end of the inner layer 301 and an open end of the outer layer 302, and the open end of the inner layer 301 and the open end of the outer layer 302 are respectively fixed at the bottom of the cover plate 1; the air bag 3 and the cover plate 1 form a closed cavity together; the connecting base 4 is used for fixing the connecting end on the supporting frame 2.
As shown in FIG. 2, after the air bag 3 of the sealing device of the present invention is inflated, the outer layer 302 of the air bag is attached to the inner wall of the tank opening and sealed, so as to achieve good sealing performance and prevent oil gas from leaking from the tank opening. The utility model discloses gasbag 3 is two-layer inside and outside the opening type, and one end is connected, one end is open, and the gasbag 3 of this kind of type is more easily made than whole inclosed gasbag 3.
The support frame 2, the air bag 3 and the connecting base 4 are all of an annular structure, the air bag 3 is arranged on the outer side of the support frame 2 in a surrounding mode, and the inner layer 301 of the air bag 3 is arranged close to the support frame 2.
The strut 2 comprises a top ring 201, sides 202 and a bottom ring 203. The open end of the inner layer 301 is pressed at the bottom of the cover plate 1 through the top ring 201; the first fixing member fixes the top ring 201 and the open end of the inner layer 301 to the bottom of the cap plate 1.
The utility model discloses sealing device still includes annular plate 6, and outer 302 open end passes through annular plate 6 and presses in apron 1 bottom, and the second mounting is fixed in apron 1 bottom with annular plate 6 and outer 302 open end.
The top ring 201 and the annular plate 6 are adopted to press the open end of the inner layer 301 and the open end of the outer layer 302 at the bottom of the cover plate 1 respectively, and then the fixing piece is adopted for fixing, so that the air tightness of the air bag 3 can be ensured, and the phenomenon that compressed air enters the air bag 3 and then enters a tank car through gaps between the open ends of the inner layer 301 and the outer layer 302 and the cover plate 1 due to point fixing is avoided. Illustratively, a plurality of threaded holes are uniformly formed in the circumferential direction of the open end of the inner layer 301, threaded holes are also formed in the positions of the cover plate 1 and the top ring 201 corresponding to the open end of the inner layer 301, and the cover plate 1, the open end of the inner layer 301 and the threaded holes in the top ring 201 are sequentially aligned and then fixed by bolts.
In order to further secure the sealing property of the airbag 3, it is preferable that a sealing compound is provided between the open ends of the inner layer 301 and the outer layer 302 and the cover plate 1.
The connecting end at the bottom of the air bag 3 is pressed at the bottom of the bottom ring 203 through the connecting base 4, and the third fixing piece fixes the connecting base 4 and the connecting end on the bottom ring 203 of the support frame 2. Preferably, the side surface 202 of the bracket 2 is a continuous surface, and a closed space is formed between the airbag inner layer 301 and the side surface 202. The inner layer 301 and the support frame 2 of the air bag form two sealing lines together, and after compressed gas enters the air bag, even if the inner layer 301 of the air bag has a leak to cause the compressed gas to leak out of the inner layer 301 of the air bag, the support frame 2 and the outer layer 302 of the air bag form a closed space, so that the compressed gas can be further prevented from entering a tank car after leaking.
The cover plate 1 is provided with an air inlet 5, and the air inlet 5 is arranged between the open end of the inner layer 301 and the open end of the outer layer 302. Compressed gas is delivered through the gas inlet 5 like the inside of the airbag 3.
Preferably, the outer layer 302 and the outer layer 302 of the airbag are made of rubber. In order to make the airbag 3 have a larger deformation when being inflated, and have a longer service life when the service condition is satisfied, the airbag outer layer 302 is arranged in an inward bending manner, and the inward bending manner is compared with the outward bending manner, so that the problem of large occupied space can be avoided.
The cover plate 1 and the connecting base 4 are made of aluminum alloy materials, so that sparks generated by collision with a tank opening are avoided.
A material inlet 7 and an oil gas outlet 8 are formed in the cover plate 1, and the material inlet 7 and the oil gas outlet 8 are formed in the cover plate 1 corresponding to the inner space of the support frame 2. The material inlet 7 can be provided with a crane pipe or tank car cleaning device, and the oil gas outlet 8 is provided with a gas phase pipe connected with an oil gas treatment device.
When the tank truck air bag is used, compressed air or nitrogen is inflated into the air bag 3 from the air inlet 5 on the cover plate 1, the air bag 3 slowly expands under the action of the compressed air, the inflation is stopped after the air pressure reaches a set value, and at the moment, the outer layer 302 of the air bag is attached to and sealed with the inner wall of the tank opening of the tank truck. When the tank truck is loaded or cleaned, the materials enter the tank truck, the pressure of oil gas in the tank truck is raised, and the oil gas is guided out from the gas phase pipe and enters the oil gas treatment device. After the loading or cleaning operation is finished, the compressed gas in the air bag 3 is discharged from the air inlet 5 on the cover plate 1, the outer diameter of the air bag 3 is reduced and restored, the air bag type sealing device is taken out from the tank car opening, and the operation is finished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. An air bag type sealing device for a tank opening of a train tank car is characterized by comprising a cover plate, a support frame, an air bag and a connecting base;
the bracket is arranged at the bottom of the cover plate and is used for supporting the air bag;
the air bag consists of an inner layer and an outer layer, and one ends of the inner layer and the outer layer are connected with each other to form a connecting end; the other ends of the inner layer and the outer layer are respectively an inner layer open end and an outer layer open end, and the inner layer open end and the outer layer open end are respectively fixed at the bottom of the cover plate; the air bag and the cover plate form a closed cavity together;
the connecting base is used for fixing the connecting end on the supporting frame.
2. The train tank car tank opening air bag type sealing device according to claim 1, wherein the strut is of an annular structure and comprises a top ring, a side face and a bottom ring.
3. The train tank car tank opening air bag type sealing device as claimed in claim 2, wherein the inner layer open end is pressed against the bottom of the cover plate through the top ring; the top ring and the inner layer open end are fixed at the bottom of the cover plate by the first fixing piece.
4. The train tank truck tank opening air bag type sealing device as claimed in claim 2, further comprising an annular plate, wherein the outer layer open end is pressed against the bottom of the cover plate through the annular plate, and the second fixing member fixes the annular plate and the outer layer open end to the bottom of the cover plate.
5. The train tank car tank opening air bag type sealing device as claimed in claim 3, wherein the connecting end is pressed on the bottom of the bottom ring through the connecting base, and a third fixing member fixes the connecting base and the connecting end on the bottom ring.
6. The train tank car tank opening air bag type sealing device as claimed in claim 4, wherein an air inlet is arranged on the cover plate, and the air inlet is arranged between the inner layer open end and the outer layer open end.
7. The train tank car tank opening air bag type sealing device as claimed in claim 1, wherein the outer layer and the outer layer are made of rubber.
8. The train tank car tank mouth airbag type sealing device according to claim 1, wherein the outer layer is bent inward.
9. The train tank car tank opening airbag type sealing device as claimed in any one of claims 1 to 8, wherein the cover plate is made of aluminum alloy material.
10. The train tank car tank opening air bag type sealing device as claimed in any one of claims 1 to 8, wherein the connecting base is made of aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121322794.5U CN214932707U (en) | 2021-06-11 | 2021-06-11 | Air bag type sealing device for tank opening of train tank car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121322794.5U CN214932707U (en) | 2021-06-11 | 2021-06-11 | Air bag type sealing device for tank opening of train tank car |
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| Publication Number | Publication Date |
|---|---|
| CN214932707U true CN214932707U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121322794.5U Active CN214932707U (en) | 2021-06-11 | 2021-06-11 | Air bag type sealing device for tank opening of train tank car |
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| CN (1) | CN214932707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11975958B2 (en) | 2022-08-31 | 2024-05-07 | Industrial Technology Research Institute | Automatic fluid replacement device and fluid convey joint |
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2021
- 2021-06-11 CN CN202121322794.5U patent/CN214932707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11975958B2 (en) | 2022-08-31 | 2024-05-07 | Industrial Technology Research Institute | Automatic fluid replacement device and fluid convey joint |
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