CN115898613A - High-temperature pipeline sealing structure - Google Patents
High-temperature pipeline sealing structure Download PDFInfo
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- CN115898613A CN115898613A CN202211684500.2A CN202211684500A CN115898613A CN 115898613 A CN115898613 A CN 115898613A CN 202211684500 A CN202211684500 A CN 202211684500A CN 115898613 A CN115898613 A CN 115898613A
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Abstract
The application discloses high temperature pipeline seal structure for reduce the probability that the high temperature caused the sealing member to become invalid when the exhaust, make it can keep normal elastic deformation to realize the sealed effect to the pipeline, improve the exhaust effect of engine. The structure of the application comprises a first pipeline, a second pipeline, a first cooling water jacket, a second cooling water jacket and an elastic sealing piece; the first pipeline is provided with a first connecting section, and the second pipeline is provided with a second connecting section; the first connecting section is inserted into the second connecting section so as to connect the first pipeline with the second pipeline; an elastic sealing element is arranged between the first connecting section and the second connecting section and used for sealing the connecting part of the first pipeline and the second pipeline; the first connecting section is provided with a first cooling water jacket, the second connecting section is provided with a second cooling water jacket, and cooling liquid is arranged in the first cooling water jacket and the second cooling water jacket and used for cooling the connecting part of the first pipeline and the second pipeline through the cooling liquid arranged in the first cooling water jacket and the second cooling water jacket.
Description
Technical Field
The application relates to the field of industrial equipment, in particular to a high-temperature pipeline sealing structure.
Background
Internal combustion engine exhaust emissions are typically vented through a conduit. In order to make the pipeline have a telescopic function and adapt to different working environments, the pipeline is usually connected to one piece through a plurality of sections of segmented pipes to form a complete pipeline. Therefore, the sealing of the connection point of the segmented exhaust line is very important.
At present, the connecting part of the sectional exhaust pipeline is usually sealed by using an elastic sealing ring. However, due to the continuous updating of the technology, the emission of the engine is upgraded, the temperature of the exhaust gas of the engine is higher and higher, and the sealing ring of the sectional exhaust pipe is easily subjected to plastic deformation due to the influence of high temperature for a long time, so that the original elasticity is lost. The sealing performance of the sealing ring fails, so that air leakage occurs at the connecting part of the sectional type exhaust pipe, and the exhaust efficiency of the engine is influenced.
Disclosure of Invention
In order to solve the problem, the application provides a high-temperature pipeline sealing structure for reducing the probability of sealing element failure caused by overhigh temperature during exhaust, so that the sealing element can keep normal elastic deformation to realize the sealing effect of the pipeline, and further the exhaust effect of an engine is improved.
The application provides a high temperature pipeline seal structure, includes:
the cooling device comprises a first pipeline, a second pipeline, a first cooling water jacket, a second cooling water jacket and an elastic sealing piece;
the first pipeline is provided with a first connecting section, and the second pipeline is provided with a second connecting section;
the first connecting section is spliced with the second connecting section so as to connect the first pipeline with the second pipeline;
the elastic sealing element is arranged between the first connecting section and the second connecting section and is used for sealing the connecting part of the first pipeline and the second pipeline;
the first connecting section is provided with the first cooling water jacket, the second connecting section is provided with the second cooling water jacket, and cooling liquid is arranged in the first cooling water jacket and the second cooling water jacket and used for cooling the connecting part of the first pipeline and the second pipeline through the cooling liquid arranged in the first cooling water jacket and the second cooling water jacket.
Optionally, the first cooling water jacket and the second cooling water jacket are both annular water jackets.
Optionally, the first connecting section is provided with a first annular groove, and the first cooling water jacket comprises a first cooling liquid inlet, a first cooling water jacket and a first cooling liquid outlet;
the first coolant jacket is embedded in the first annular groove, the first coolant inlet is located on a first side of the first pipe, the first coolant outlet is located on a second side of the first pipe, and the first side and the second side are axially symmetrical with respect to the first pipe.
Optionally, the first coolant water jacket comprises a first stage water jacket and a second stage water jacket;
the second section of water jacket is positioned below the elastic sealing piece, and the diameter of the second section of water jacket is larger than that of the first section of water jacket.
Optionally, the second connecting section is provided with a second annular groove, and the second cooling water jacket comprises a second cooling liquid inlet, a second cooling water jacket and a second cooling liquid outlet;
the second coolant jacket is embedded in the second annular groove, the second coolant inlet is located on a first side of the second pipeline, the second coolant outlet is located on a second side of the second pipeline, and the first side and the second side are axially symmetrical with respect to the second pipeline.
Optionally, the first cooling water jacket and the second cooling water jacket are respectively located on two sides of the elastic sealing member, and are used for performing double-side temperature cooling on the elastic sealing member.
Optionally, a third annular groove is formed in the outer side of the first pipeline;
the elastic sealing element is arranged in the third annular groove, and part of the elastic sealing element protrudes out of the third annular groove.
Optionally, the first connecting section is in clearance fit with the second connecting section, and the elastic sealing element is an elastic sealing ring or an elastic sealing rope.
Optionally, the first cooling water jacket and the second cooling water jacket are respectively connected with an external coolant tank for providing circulating coolant in the first cooling water jacket and the second cooling water jacket through the external coolant tank.
Optionally, the external coolant tank is a cooling system of the engine.
According to the technical scheme, the method has the following advantages:
the structure of the application comprises a first pipeline, a second pipeline, a first cooling water jacket, a second cooling water jacket and an elastic sealing piece; the first pipeline is provided with a first connecting section, and the second pipeline is provided with a second connecting section; the first connecting section is inserted into the second connecting section so as to connect the first pipeline with the second pipeline; an elastic sealing element is arranged between the first connecting section and the second connecting section and used for sealing the connecting part of the pipeline; the first connecting section is provided with a first cooling water jacket, the second connecting section is provided with a second cooling water jacket, cooling liquid is arranged in the first cooling water jacket and the second cooling water jacket, and the cooling liquid is used for cooling the connecting part of the first pipeline and the second pipeline. Therefore, the cooling water jacket is arranged at the connecting section of the first pipeline and the second pipeline, the pipeline connecting part is cooled by using the cooling liquid in the cooling water jacket, the temperature of the pipeline connecting section and the temperature of the elastic sealing element are reduced, the elastic sealing element works in a relatively low temperature environment, the failure of pipeline sealing caused by plastic deformation of the elastic sealing element due to overhigh temperature is reduced, the elastic sealing element can keep normal elastic deformation to realize the sealing effect of the pipeline, and the exhaust effect of the engine is improved.
Drawings
Fig. 1 is a schematic structural cross-sectional view of an embodiment of a high-temperature pipeline sealing structure provided in the present application;
FIG. 2 is a schematic cross-sectional structural view of an embodiment of a first cooling water jacket in a high-temperature pipeline sealing structure provided by the present application;
fig. 3 is a schematic sectional structural view of an embodiment of a second cooling water jacket in a high-temperature pipeline sealing structure provided by the present application.
Detailed Description
The application provides a high temperature pipeline seal structure for reduce the probability that the high temperature caused the sealing member to become invalid when exhausting, make the sealing member can keep normal elastic deformation and realize the sealed effect of pipeline, and then improve the exhaust effect of engine.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for explaining relative positional relationships between the respective components or constituent parts, and do not particularly limit specific mounting orientations of the respective components or constituent parts.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the structures, the proportions, the sizes, and the like, which are illustrated in the accompanying drawings and described in the present application, are intended to be considered illustrative and not restrictive, and therefore, not limiting, since those skilled in the art will understand and read the present application, it is understood that any modifications of the structures, changes in the proportions, or adjustments in the sizes, which are not necessarily essential to the practice of the present application, are intended to be within the scope of the present disclosure without affecting the efficacy and attainment of the same.
Furthermore, the terms "first," "second," "third," and the like (if any) may be used herein to distinguish one element from another, and not necessarily to describe a particular order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in other sequences than described or illustrated herein.
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Referring to fig. 1 to 3, the present application provides a high temperature pipeline sealing structure, which includes:
the cooling device comprises a first pipeline 1, a second pipeline 2, a first cooling water jacket 3, a second cooling water jacket 4 and an elastic sealing piece 5; the first pipeline 1 is provided with a first connecting section 11, and the second pipeline 2 is provided with a second connecting section 22; the first connecting section 11 is plugged into the second connecting section 22 so as to connect the first pipeline 1 with the second pipeline 2; an elastic sealing element 5 is arranged between the first connecting section 11 and the second connecting section 22, and the elastic sealing element 5 is used for sealing the connecting part of the first pipeline 1 and the second pipeline 2; the first connecting section 11 is provided with a first cooling water jacket 3, the second connecting section 22 is provided with a second cooling water jacket 4, and cooling liquid is arranged in the first cooling water jacket 3 and the second cooling water jacket 4 respectively and used for cooling the connecting part of the first pipeline 1 and the second pipeline 2 through the cooling liquid arranged in the first cooling water jacket 3 and the second cooling water jacket 4.
Wherein, the first pipeline 1 and the second pipeline 2 are exhaust conveying pipelines for exhausting exhaust gas of an engine. In particular, it may be a segmented exhaust pipe in the exhaust delivery line of the exhaust gas. The first pipeline 1 and the second pipeline 2 may be made of a high temperature resistant material, such as a high temperature resistant steel pipe or a high temperature resistant plastic pipe. The details are not limited herein.
The elastic sealing member 5 is a sealing member having elastic deformation capability, and may be made of rubber, plastic, or other materials having elastic deformation capability. In particular, the elastic sealing element 5 may be an elastic sealing ring or an elastic sealing rope or the like, such as a rubber sealing ring, adapted to the size of the first and second pipelines 1, 2. Alternatively, other sealing elements may be used, and are not limited herein.
Referring to fig. 1, the high-temperature exhaust gas discharged from the engine is mainly discharged from the first pipeline 1 toward the second pipeline 2, wherein a part of the discharged high-temperature exhaust gas may be discharged to the outside from a connection portion of the first pipeline 1 and the second pipeline 2, that is, a portion where the first connection section 11 is inserted into the second connection section 22, and a flow direction of the high-temperature exhaust gas may specifically refer to an arrow direction in fig. 1. At this time, since the elastic sealing member 5 is disposed at the portion where the first connection section 11 and the second connection section 22 are inserted, the elastic sealing member 5 maintains tension by elasticity, and is attached to the outer surface and the inner surface of the first pipeline 1 and the second pipeline 2 to seal the connection portion, so that high-temperature exhaust gas is not discharged. However, because the exhaust gas temperature of the engine is very high at present, and the temperature can reach more than 200 ℃, the first pipeline 1, the second pipeline 2 and the elastic sealing element 5 for transmitting the exhaust gas work in a high-temperature environment, and the elastic sealing element 5 at the connecting part is easily subjected to plastic deformation and loses elasticity after being influenced by high temperature for a long time, so that exhaust leakage is easily caused.
Therefore, in the present embodiment, the cooling water jackets are provided at the connecting portions of the pipelines, i.e., the first cooling water jacket 3 is provided at the first connecting section 11 of the first pipeline 1, and the second cooling water jacket 4 is provided at the second connecting section 22 of the second pipeline 2. The heat transfer is accelerated by the coolant in the first cooling water jacket 3 and the second cooling water jacket 4, the temperature of the connecting part is reduced by the coolant, and the temperature of the elastic sealing piece 5 at the connecting part is reduced at the same time, so that the elastic sealing piece 5 works in a relatively low temperature environment, for example, the temperature environment is controlled below 200 ℃, the probability of elastic failure of the elastic sealing piece 5 caused by a long-time high-temperature environment is reduced, the elastic sealing piece 5 can keep normal elastic tension to seal the connecting part of the first pipeline 1 and the second pipeline 2, the sealing effect is improved, and further the exhaust effect of the engine is improved.
Alternatively, the first cooling water jacket 3 and the second cooling water jacket 4 are both annular water jackets. Since the elastic sealing member 5 is installed at the connection portion of the first pipeline 1 and the second pipeline 2, and is a ring-shaped elastic sealing member 5 so as to seal all the connection portions. Therefore, in the present embodiment, the first cooling water jacket 3 and the second cooling water jacket 4 are provided as annular water jackets, which can be adapted to the annular shape of the elastic sealing member 5 installed in the pipeline, so that uniform cooling of the elastic sealing member 5 is achieved, and cooling efficiency is improved. Alternatively, the water jacket may have other shapes, and is not limited herein.
Alternatively, the first cooling water jacket 3 and the second cooling water jacket 4 are connected with an external coolant tank, respectively, for supplying circulating coolant in the first cooling water jacket 3 and the second cooling water jacket 4 through the external coolant tank. The circulating cooling liquid may be water or other liquid medium, and is not limited herein.
Optionally, the external coolant tank is a cooling system of the engine. By using the cooling system of the engine directly, the cost is reduced. Alternatively, the external coolant tank may be a cooling system added independently, and is not limited herein.
Optionally, the first connecting section 11 is provided with a first annular groove, and the first cooling water jacket 3 includes a first cooling liquid inlet 31, a first cooling water jacket 32 and a first cooling liquid outlet 33; the first coolant jacket 32 is embedded in the first annular groove, the first coolant inlet 31 is located on a first side of the first pipe 1, and the first coolant outlet 33 is located on a second side of the first pipe 1, the first and second sides being axially symmetrical with respect to the first pipe 1.
Wherein the first annular groove comprises a first inlet, a first annular inner groove and a first outlet, wherein the first annular inner groove is located inside the housing of the first pipeline 1 and opens into the environment outside the housing of the first pipeline 1 via the first inlet and the first outlet. Further, the first inlet and the first outlet are symmetrical with respect to the axial direction of the first pipeline 1. Further, the first inlet and the first outlet are respectively bosses led out from the radial shell of the first pipeline 1, and through holes for connecting the external environment and the first annular inner groove are formed in the bosses. The first coolant inlet 31 and the first coolant outlet 33 are led out from the respective through holes, respectively. Thus, the first coolant jacket 32 of the first coolant jacket 3 is built in the first annular inner groove, the first coolant inlet 31 is drawn from the first inlet, the first coolant outlet 33 is drawn from the first outlet, and the first coolant inlet 31 and the first coolant outlet 33 are symmetrical with respect to the axial direction of the first pipe 1. Meanwhile, the first coolant inlet 31 and the first coolant outlet 33 communicate with an external coolant tank. Therefore, a coolant circulation path of the external coolant tank, the first coolant inlet 31, the first coolant jacket 32, the first coolant outlet 33, and the external coolant tank is formed, so that coolant circulates in the coolant circulation path, heat transfer of the first pipeline 1 is accelerated, and temperature reduction is rapidly achieved.
Further, plugs may be respectively disposed at the first coolant inlet 31 and the first coolant outlet 33, so that when the first cooling water jacket 3 does not need to operate and an external coolant tank does not need to be connected, the first coolant inlet 31 and the first coolant outlet 33 may be plugged by the plugs, thereby reducing leakage of the first cooling water jacket 32.
Alternatively, the first coolant water jacket 32 includes a first-stage water jacket 321 and a second-stage water jacket 322; the second-stage water jacket 322 is located below the elastic seal 5, and the diameter of the second-stage water jacket 322 is larger than that of the first-stage water jacket 321.
In this embodiment, the first water jacket 321 in which the first coolant water jacket 32 is provided is small, and the second water jacket 322 located below the elastic sealing member 5 is large, so that the flow rate of the coolant at a position other than the elastic sealing member 5 is reduced, and the flow rate of the coolant at the position of the elastic sealing member 5 is increased, thereby not only relatively reducing the usage amount of the coolant, but also increasing the cooling effect of the coolant on the elastic sealing member 5 as much as possible.
Alternatively, the second connection section 22 is provided with a second annular groove, and the second cooling water jacket 4 includes a second cooling water inlet 41, a second cooling water jacket 42, and a second cooling water outlet 43; the second coolant jacket 42 is embedded in the second annular groove, the second coolant inlet 41 is located on a first side of the second pipe 2, and the second coolant outlet 43 is located on a second side of the second pipe 2, the first and second sides being axially symmetric with respect to the second pipe 2.
Wherein the second annular groove comprises a second inlet, a second annular inner groove and a second outlet, wherein the second annular inner groove is located inside the housing of the second pipeline 2, leading to the environment outside the housing of the second pipeline 2 through the second inlet and the second outlet. Further, the second inlet and the second outlet are symmetrical with respect to the axial direction of the second pipe 2. Thus, the second coolant jacket 42 of the second coolant jacket 4 is built in the second annular inner groove, the second coolant inlet 41 is led out from the second inlet, the second coolant outlet 43 is led out from the second outlet, and the second coolant inlet 41 and the second coolant outlet 43 are symmetrical with respect to the axial direction of the second pipe 2. Meanwhile, the second coolant inlet 41 and the second coolant outlet 43 communicate with an external coolant tank. Therefore, a cooling liquid circulation passage of the external cooling liquid tank, the second cooling liquid inlet 41, the second cooling liquid water jacket 42, the second cooling liquid outlet 43 and the external cooling liquid tank is formed, so that the cooling liquid circulates in the cooling liquid circulation passage, the heat transfer of the second pipeline 2 is accelerated, and the temperature is quickly reduced.
Further, plugs can be respectively arranged at the second cooling liquid inlet 41 and the second cooling liquid outlet 43, and when the second cooling water jacket 4 does not need to work and is not connected with an external cooling liquid tank, the second cooling liquid inlet 41 and the second cooling liquid outlet 43 are plugged by the plugs, so that leakage of the second cooling water jacket 42 is reduced.
Optionally, the first cooling water jacket 3 and the second cooling water jacket 4 are respectively located on two sides of the elastic sealing member 5 for performing double-sided temperature cooling on the elastic sealing member 5.
Wherein, the first cooling water jacket 3 is positioned at the lower side of the elastic sealing piece 5, and the second cooling water jacket 4 is positioned at the upper side of the elastic sealing piece 5. Specifically, the distance from the first cooling water jacket 3 to the elastic sealing piece 5 and the distance from the second cooling water jacket 4 to the elastic sealing piece 5 can be reduced as much as possible, so that the upper side and the lower side of the elastic sealing piece 5 can be cooled down on both sides, and the cooling effect is accelerated.
Optionally, a third annular groove is arranged outside the first pipeline 1; the elastic sealing member 5 is installed in the third annular groove, and partially protrudes from the third annular groove.
In this embodiment, a third annular groove is provided on the outer shell of the first connection section 11 of the first pipeline 1, and the width of the third annular groove may be slightly smaller than the width of the elastic sealing element 5, so that when the elastic sealing element 5 is installed in the third annular groove, the elastic sealing element 5 is under the pressure of the third annular groove, and thus the elastic sealing element 5 is stably installed on the third annular groove through the cooperation of the pressure and the tension of the elastic sealing element 5. Further, the height dimension of the third annular groove may be slightly smaller than the height dimension of the elastic sealing member 5, so that the elastic sealing member 5 partially protrudes from the third annular groove, and the sealing effect of the elastic sealing member 5 is improved when the first connecting section 11 is inserted into the second connecting section 22.
Optionally, the first connecting section 11 is clearance fitted with the second connecting section 22.
In this embodiment, the outer diameter of the first connection section 11 is slightly smaller than the inner diameter of the second connection section 22, so that when the first connection section 11 is inserted into the second connection section 22, the first connection section 11 is in clearance fit with the second connection section 22. So that the connection portions between the first pipeline 1 and the second pipeline 2 are reduced from being pressed or collided with each other when the first connection section 11 and the second connection section 22 are subjected to high-temperature expansion. Meanwhile, the elastic sealing element 5 is arranged at the connecting part of the first connecting section 11 and the second connecting section 22, the elasticity of the elastic sealing element 5 is utilized to keep tension, and the inner surface and the outer surface of the pipe are attached, so that the fit clearance between the first pipeline 1 and the second pipeline 2 is compensated, and the leakage amount of high-temperature waste gas is reduced.
It is intended that the foregoing description of the disclosed embodiments enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-temperature pipeline sealing structure, characterized in that, the high-temperature pipeline sealing structure includes:
the cooling device comprises a first pipeline, a second pipeline, a first cooling water jacket, a second cooling water jacket and an elastic sealing piece;
the first pipeline is provided with a first connecting section, and the second pipeline is provided with a second connecting section;
the first connecting section is spliced with the second connecting section so as to connect the first pipeline with the second pipeline;
the elastic sealing element is arranged between the first connecting section and the second connecting section and used for sealing the connecting part of the first pipeline and the second pipeline;
the first connecting section is provided with the first cooling water jacket, the second connecting section is provided with the second cooling water jacket, and cooling liquid is arranged in the first cooling water jacket and the second cooling water jacket and used for cooling the connecting part of the first pipeline and the second pipeline through the cooling liquid arranged in the first cooling water jacket and the second cooling water jacket.
2. A high-temperature pipeline sealing structure according to claim 1, wherein the first cooling water jacket and the second cooling water jacket are both annular water jackets.
3. A high temperature pipe seal structure according to claim 2, wherein said first connection section is provided with a first annular groove, said first cooling jacket including a first coolant inlet, a first coolant jacket, and a first coolant outlet;
the first coolant jacket is embedded in the first annular groove, the first coolant inlet is located on a first side of the first pipe, the first coolant outlet is located on a second side of the first pipe, and the first side and the second side are axially symmetrical with respect to the first pipe.
4. A high temperature pipe seal structure according to claim 3, wherein said first coolant jacket comprises a first section of water jacket and a second section of water jacket;
the second section of water jacket is positioned below the elastic sealing piece, and the diameter of the second section of water jacket is larger than that of the first section of water jacket.
5. A high temperature pipe seal structure according to claim 3, wherein said second connection section is provided with a second annular groove, said second cooling water jacket including a second cooling liquid inlet, a second cooling water jacket, and a second cooling liquid outlet;
the second coolant jacket is embedded in the second annular groove, the second coolant inlet is located on a first side of the second pipeline, the second coolant outlet is located on a second side of the second pipeline, and the first side and the second side are axially symmetrical with respect to the second pipeline.
6. The high temperature pipe seal structure of claim 5, wherein the first cooling water jacket and the second cooling water jacket are located on both sides of the elastomeric seal, respectively, for double-sided temperature cooling of the elastomeric seal.
7. A high temperature pipeline sealing structure according to any one of claims 1 to 6, wherein a third annular groove is provided on the outside of the first pipeline;
the elastic sealing element is arranged in the third annular groove, and part of the elastic sealing element protrudes out of the third annular groove.
8. A high temperature pipeline sealing structure according to any one of claims 1 to 6, wherein the first connecting section is clearance-fitted with the second connecting section, and the elastic sealing element is an elastic sealing ring or an elastic sealing rope.
9. A high-temperature pipeline sealing structure according to any one of claims 1 to 6, wherein the first cooling water jacket and the second cooling water jacket are respectively connected with an external cooling tank for providing circulating cooling liquid in the first cooling water jacket and the second cooling water jacket through the external cooling tank.
10. A high temperature pipe seal structure according to claim 9, wherein the external cooling tank is a cooling system of an engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684500.2A CN115898613A (en) | 2022-12-27 | 2022-12-27 | High-temperature pipeline sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684500.2A CN115898613A (en) | 2022-12-27 | 2022-12-27 | High-temperature pipeline sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115898613A true CN115898613A (en) | 2023-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211684500.2A Pending CN115898613A (en) | 2022-12-27 | 2022-12-27 | High-temperature pipeline sealing structure |
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| Country | Link |
|---|---|
| CN (1) | CN115898613A (en) |
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- 2022-12-27 CN CN202211684500.2A patent/CN115898613A/en active Pending
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