CN113898737A - Detachable split type vacuum pipeline - Google Patents

Detachable split type vacuum pipeline Download PDF

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Publication number
CN113898737A
CN113898737A CN202010572393.9A CN202010572393A CN113898737A CN 113898737 A CN113898737 A CN 113898737A CN 202010572393 A CN202010572393 A CN 202010572393A CN 113898737 A CN113898737 A CN 113898737A
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CN
China
Prior art keywords
groove
sealing
butt joint
pipeline
plate
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Granted
Application number
CN202010572393.9A
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Chinese (zh)
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CN113898737B (en
Inventor
毛凯
李少伟
贾允祥
卫晨曦
刘骁
任晓博
王帅
李萍
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Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
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Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
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Priority to CN202010572393.9A priority Critical patent/CN113898737B/en
Publication of CN113898737A publication Critical patent/CN113898737A/en
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Publication of CN113898737B publication Critical patent/CN113898737B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/04—Magnetic suspension or levitation for vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/08—Sliding or levitation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/10—Tunnel systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Gasket Seals (AREA)

Abstract

The invention provides a detachable split type vacuum pipeline which comprises a first flange plate, a first connecting piece, a second flange plate, an upper semicircular pipe, a second connecting piece, a lower semicircular pipe, a first sealing piece and a second sealing piece. By applying the technical scheme of the invention, the second groove and the third groove are arranged on the butt joint plate of the upper semicircular pipe or the lower semicircular pipe, the first groove and the fourth groove are arranged on the second flange plate, and the twist-shaped transition area is arranged in the fourth groove, so that the second sealing element arranged in the fourth groove is in transition from vertical compression type sealing rotation to left-right compression type sealing, and the effective sealing of the joint of the first sealing element and the second sealing element is ensured. Compared with welding sealing, the sealing structure of the split vacuum pipeline is detachable, has better anti-fatigue property, and is low in construction difficulty and high in construction precision.

Description

Detachable split type vacuum pipeline
Technical Field
The invention relates to the technical field of vacuum pipeline maglev trains, in particular to a detachable split type vacuum pipeline.
Background
Most of the existing vacuum pipelines for running high-speed maglev trains are round-tube-shaped vacuum pipelines. The up-down split vacuum pipeline structure is increasingly paid attention and favored by the vacuum pipeline maglev train industry due to good construction performance and higher positioning precision during construction.
However, for the split vacuum pipeline, the pipeline size is large, the pipeline is mostly sealed by welding to ensure the sealing performance, the pipeline is not detachable, and the operation of rescuing by quickly hoisting the pipeline out of the train in an emergency situation is difficult.
Disclosure of Invention
The invention provides a detachable split type vacuum pipeline, which can solve the technical problem that a sealing structure of the split type vacuum pipeline in the prior art is not detachable.
According to an aspect of the present invention, there is provided a detachable split type vacuum pipe, the pipe including a first flange, a first connector, a second flange, an upper semicircular pipe, a second connector, a lower semicircular pipe, a first sealing member, and a second sealing member;
one side of the second flange plate is connected with the first flange plate through the first connecting piece, the upper half part of the other side of the second flange plate is connected with the upper semicircular pipe, and the lower half part of the other side of the second flange plate is connected with the lower semicircular pipe;
the lower end face of the upper semicircular pipe is provided with a first butt plate, the upper end face of the lower semicircular pipe is provided with a second butt plate, and the first butt plate and the second butt plate are connected through the second connecting piece;
a first groove is formed in one side, opposite to the first flange, of the second flange along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate in the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate in the axial direction of the pipeline, a third groove is formed in one end of the second groove in the radial direction of the pipeline, and the third groove is communicated with the second groove; a fourth groove is formed in one side, opposite to the first flange, of the second flange along the radial direction of the pipeline; one end of the fourth groove is communicated with the first groove, and the other end of the fourth groove is communicated with the third groove; the first groove, the second groove, the third groove and the fourth groove are all grooves with different depths and widths;
the first sealing element is arranged in the first groove, the second sealing element is arranged in the second groove, the third groove and the fourth groove, and the first sealing element is connected with the second sealing element; the fourth groove is provided with a twist-shaped transition area for enabling the second sealing element arranged in the fourth groove to be in transition from vertical compression type sealing rotation to left-right compression type sealing.
According to another aspect of the present invention, there is provided a detachable split type vacuum pipe, the pipe including a first flange, a first connector, a second flange, an upper semicircular pipe, a second connector, a lower semicircular pipe, a first sealing member, and a second sealing member;
one side of the second flange plate is connected with the first flange plate through the first connecting piece, the upper half part of the other side of the second flange plate is connected with the upper semicircular pipe, and the lower half part of the other side of the second flange plate is connected with the lower semicircular pipe;
the lower end face of the upper semicircular pipe is provided with a first butt plate, the upper end face of the lower semicircular pipe is provided with a second butt plate, and the first butt plate and the second butt plate are connected through the second connecting piece;
a first groove is formed in one side, opposite to the first flange, of the second flange along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate along the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate along the axial direction of the pipeline, a third groove is formed in the first butt joint plate or the second butt joint plate provided with the second groove along the radial direction of the pipeline, and the third groove is communicated with the second groove; a fifth groove is formed in one side, opposite to the first flange, of the second flange along the radial direction of the pipeline; one end of the fifth groove is communicated with the first groove, and the other end of the fifth groove is communicated with the third groove; a sixth groove is formed in one side, opposite to the second flange, of the first flange along the radial direction of the pipeline; the first groove, the second groove and the third groove are all grooves with different depths and widths;
the first sealing element is arranged in the first groove, the second sealing element is arranged in the second groove, the third groove, the fifth groove and the sixth groove, and the first sealing element is connected with the second sealing element; the middle area of the fifth groove and the sixth groove jointly form a twist-shaped transition area for rotationally transitioning the second sealing element arranged in the fifth groove and the sixth groove from a vertical compression type sealing to a left-right compression type sealing; the length of the middle region of the fifth groove is the same as the length of the sixth groove.
Preferably, the first sealing element is a sealing ring, and the second sealing element is a sealing strip.
Preferably, the cross-sectional shapes of the sealing ring and the sealing strip are both circular and have the same size.
Preferably, the sealing ring and the sealing strip are made of rubber.
Preferably, the first connecting piece is a bolt.
Preferably, the second connector is a screw.
Preferably, the upper semicircular tube and the lower semicircular tube are made of metal.
Preferably, the first butt plate and the second butt plate are provided with reinforcing ribs.
By applying the technical scheme of the invention, the second groove and the third groove are arranged on the butt joint plate of the upper semicircular pipe or the lower semicircular pipe, the first groove and the fourth groove are arranged on the second flange plate, and the twist-shaped transition area is arranged in the fourth groove, so that the second sealing element arranged in the fourth groove is in transition from vertical compression type sealing rotation to left-right compression type sealing, and the effective sealing of the joint of the first sealing element and the second sealing element is ensured. Compared with welding sealing, the sealing structure of the split vacuum pipeline is detachable, has better anti-fatigue property, and is low in construction difficulty and high in construction precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 shows a schematic diagram of a split vacuum line configuration according to an embodiment of the invention;
FIG. 2 is a schematic view illustrating the structure of a lower semicircular tube of the split type vacuum pipe of FIG. 1;
FIG. 3 shows a side view schematic of the split vacuum line of FIG. 1;
FIG. 4 is a schematic view of the split vacuum pipe of FIG. 1 along the axial direction of the pipe;
FIG. 5 shows a schematic cross-sectional view at A-A and B-B of the third trench of FIG. 4;
FIG. 6 shows a schematic cross-sectional view of the fourth trench of FIG. 4 at the beginning C-C of the transition region;
FIG. 7 shows a schematic cross-sectional view of the transition region of the fourth groove of FIG. 4 at the ending end D-D and at the end E-E communicating with the first groove;
FIG. 8 is a schematic diagram illustrating a transition region structure of the fourth trench in FIG. 4;
fig. 9 shows a schematic cross-sectional view at the beginning C-C of the transition region of the fifth trench and the sixth trench in fig. 4.
Description of the reference numerals
1. A first flange plate; 2. A first connecting member; 3. A second flange plate;
4. an upper semi-circular tube; 5. A second connecting member; 6. A lower semicircular tube;
7. a first seal member; 8. A second seal member; 9. A bellows;
10. a track beam; 11. The beginning of the transition region; 12. The ending end of the transition region.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 4, the present invention provides a detachable split type vacuum pipe, which includes a first flange 1, a first connector 2, a second flange 3, an upper semicircular pipe 4, a second connector 5, a lower semicircular pipe 6, a first sealing member 7, and a second sealing member 8;
one side of the second flange 3 is connected with the first flange 1 through the first connecting piece 2, the upper half part of the other side is connected with the upper semicircular pipe 4, and the lower half part is connected with the lower semicircular pipe 6;
a first butt joint plate is arranged on the lower end face of the upper semi-circular pipe 4, a second butt joint plate is arranged on the upper end face of the lower semi-circular pipe 6, and the first butt joint plate is connected with the second butt joint plate through a second connecting piece 5;
a first groove is formed in one side, opposite to the first flange plate 1, of the second flange plate 3 along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate in the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate in the axial direction of the pipeline, a third groove is formed in one end of the second groove in the radial direction of the pipeline, and the third groove is communicated with the second groove; a fourth groove is formed in one side, opposite to the first flange plate 1, of the second flange plate 3 along the radial direction of the pipeline; one end of the fourth groove is communicated with the first groove, and the other end of the fourth groove is communicated with the third groove; the first groove, the second groove, the third groove and the fourth groove are all grooves with different depths and widths;
the first sealing element 7 is arranged in the first groove, the second sealing element 8 is arranged in the second groove, the third groove and the fourth groove, and the first sealing element 7 is connected with the second sealing element 8; the fourth groove is provided with a twist-shaped transition area for transition of the second sealing element 8 arranged in the fourth groove from vertical compression type sealing to horizontal compression type sealing in a rotating manner.
By applying the technical scheme of the invention, the second groove and the third groove are arranged on the butt joint plate of the upper semicircular pipe or the lower semicircular pipe, the first groove and the fourth groove are arranged on the second flange plate, and the twist-shaped transition area is arranged in the fourth groove, so that the second sealing element arranged in the fourth groove is in transition from vertical compression type sealing rotation to left-right compression type sealing, and the effective sealing of the joint of the first sealing element and the second sealing element is ensured. Compared with welding sealing, the sealing structure of the split vacuum pipeline is detachable, has better anti-fatigue property, and is low in construction difficulty and high in construction precision.
In the present invention, the first groove, the second groove, the third groove, and the fourth groove are all grooves having different depths and widths to ensure good sealing of the sealing surface. The first, second, third, and fourth grooves may have a rectangular or trapezoidal cross-sectional shape.
Next, the sealing structure of the vacuum pipe is described in detail by taking as an example that the second groove and the third groove are disposed in the second butt plate of the lower semicircular pipe 6, and the cross-sectional shapes of the first groove, the second groove, the third groove and the fourth groove are all rectangular.
The second sealing element 8 is arranged between the first butt joint plate and the second butt joint plate and is in up-and-down pressing type sealing. The main sealing surface of the second sealing element 8 is the bottom surface of the second groove and the first butt plate, and the auxiliary sealing surfaces are two side surfaces of the second groove; and the main sealing surface of the second sealing element 8 arranged in the third groove is the bottom surface of the third groove and the first butt plate, and the auxiliary sealing surfaces are two side surfaces of the third groove. The depth a of the second groove is smaller than the width b, and the depth a of the third groove is smaller than the width b. The first sealing element 7 is arranged between the first flange plate 1 and the second flange plate 3 and is used for left and right compression type sealing, the main sealing surface is the bottom surface of the first groove and the first flange plate 1, and the auxiliary sealing surfaces are two side surfaces of the first groove. Wherein the depth a of the first trench is less than the width b. A twist-shaped transition area is arranged in the fourth groove, so that the second sealing element 8 arranged in the fourth groove can realize the transition from the vertical compression type sealing rotation to the left-right compression type sealing in the transition area. One end of a second sealing element 8 arranged in the fourth groove, which is communicated with the first groove, is a left-right pressing type seal, the main sealing surfaces of the left-right pressing type seal are the bottom surface of the fourth groove and the first flange plate 1, and the auxiliary sealing surfaces of the left-right pressing type seal are two side surfaces of the fourth groove; one end of the second sealing element 8 arranged in the fourth groove, which is communicated with the third groove, is in up-and-down pressing type sealing, the main sealing surfaces of the second sealing element are two side surfaces of the fourth groove, and the auxiliary sealing surfaces of the second sealing element are the bottom surface of the fourth groove and the first flange plate 1.
Fig. 5 shows a schematic cross-sectional view at a-a and B-B of the third trench in fig. 4. As shown in fig. 5, the depth a of the third trench is smaller than the width b. Fig. 6 shows a schematic cross-sectional view at the beginning C-C of the transition region of the fourth trench in fig. 4. As shown in fig. 6, the fourth trench has a depth b at the beginning 11 of the transition region (in the figure at C-C) which is greater than the width a. Fig. 7 shows a schematic cross-sectional view at the end D-D of the transition region of the fourth groove and at the end E-E communicating with the first groove in fig. 4. As shown in fig. 7, the depth a of the fourth groove at the end 12 of the transition region (D-D in the figure) and at the end communicating with the first groove (E-E in the figure) is smaller than the width b. The twist-shaped transition area in the fourth groove can be processed by numerical control milling, and the structural schematic diagram is shown in fig. 8.
Wherein, a part of the second sealing member 8 is arranged in the second groove, a part is arranged in the third groove, another part is arranged in the fourth groove, the second sealing member 8 arranged in the fourth groove is connected with the first sealing member 7 at the communication position of the first groove and the fourth groove, and the connection mode can adopt bonding. Through the arrangement mode, the same pressing structure can be adopted at the bonding position, the continuous transition of the main sealing surface is guaranteed, and the bonding position has good sealing performance.
According to an embodiment of the invention, the first sealing element 7 is a sealing ring and the second sealing element 8 is a sealing strip.
According to one embodiment of the invention, the cross sections of the sealing ring and the sealing strip are both circular and have the same size, so that the sealing effect at the joint of the sealing ring and the sealing strip is ensured.
According to one embodiment of the invention, the sealing ring and the sealing strip are both made of rubber.
According to an embodiment of the invention, the first connecting piece 2 is a bolt. For example, the bolt may be an M30 standard bolt.
According to one embodiment of the invention, said second connector 5 is a screw. For example, the screw may be an M30 standard screw.
According to an embodiment of the present invention, the upper semicircular pipe 4 and the lower semicircular pipe 6 are made of metal, so that the upper semicircular pipe 4 and the lower semicircular pipe 6 have better air tightness and load bearing performance. For example, the material of the upper semicircular tube 4 and the lower semicircular tube 6 can be carbon steel, such as Q345r steel.
According to one embodiment of the invention, the first butt plate and the second butt plate are provided with reinforcing ribs to reduce the bearing deformation of the vacuum pipeline, so that the sealing reliability is guaranteed.
In order to better realize the sealing effect, the surface roughness of the first groove, the second groove, the third groove and the fourth groove is set to Ra0.8.
In the invention, the second flange 3 can adopt an integrated structure, and can also adopt a split structure of an upper flange and a lower flange. Wherein, the upper flange in the split structure is connected with the upper semicircular pipe 4, and the lower flange is connected with the lower semicircular pipe 6.
When the vacuum pipeline is used, the vacuum pipeline is generally formed by connecting a plurality of sections of vacuum pipelines, the sections of pipelines are connected by the corrugated pipe 9, and when the vacuum pipeline expands with heat and contracts with cold due to environmental temperature change or deforms under the influence of vehicle load in the pipeline, the corrugated pipe 9 can deform along with the deformation of the vacuum pipeline, so that the close connection among the sections of pipelines is ensured, and good sealing performance is kept.
The corrugated pipe 9 is connected with the first flange plate 1 of the vacuum pipeline, and the corrugated pipe 9 and the first flange plate 1 can be of an integrally formed structure and can also be connected in a welding mode.
In addition, the bellows 9 is a telescopic structure, and the structure and material of the bellows 9 are not limited in the present invention, for example, the structure may be welded bellows or integrally formed bellows, and the material may be 304 stainless steel, 316 stainless steel or rubber. The bellows 9 may be replaced with other expansion members as long as the expansion compensation function is realized.
The sealing structure in the vacuum pipeline can simultaneously realize the detachable sealing between the upper semicircular pipe and the lower semicircular pipe and the detachable sealing between the upper semicircular pipe and the corrugated pipe and the lower semicircular pipe.
The vacuum pipeline further comprises a track beam 10, wherein the track beam 10 is made of concrete materials and is poured in the lower semicircular pipe 6, so that the bearing capacity of the lower semicircular pipe 6 is improved.
The detachable split type vacuum pipeline has the following construction sequence:
(1) a concrete track beam 10 is poured in the lower semicircular pipe 6 and is hung on the beam support after pouring;
(2) installing a rubber sealing strip in a second groove of the lower semicircular tube 6, and then bending by 90 degrees and installing the rubber sealing strip in a third groove;
(3) hoisting the upper semicircular pipe 4 on the lower semicircular pipe 6, installing screws, and pressing the rubber sealing strip tightly to realize sealing to form a vacuum pipeline;
(4) sleeving a second flange 3 on the outer side of the vacuum pipeline, and connecting the inner side of the second flange 3 with the outer side of the vacuum pipeline in a welding or threaded connection mode;
(5) installing a rubber sealing ring in a first groove of the second flange plate 3, installing a rubber sealing strip extending out of a third groove in a fourth groove of the second flange plate 3, and bonding the rubber sealing strip and the fourth groove together;
(6) the first flange plate 1 is in butt joint with the second flange plate 3, and bolts are installed and fastened, so that the split type vacuum pipeline is connected and sealed.
As shown in fig. 1 to 4, in order to facilitate the processing of the twist-shaped transition region, the invention further provides a detachable split type vacuum pipeline, which comprises a first flange plate 1, a first connecting piece 2, a second flange plate 3, an upper semicircular pipe 4, a second connecting piece 5, a lower semicircular pipe 6, a first sealing element 7 and a second sealing element 8;
one side of the second flange 3 is connected with the first flange 1 through the first connecting piece 2, the upper half part of the other side is connected with the upper semicircular pipe 4, and the lower half part is connected with the lower semicircular pipe 6;
a first butt joint plate is arranged on the lower end face of the upper semi-circular pipe 4, a second butt joint plate is arranged on the upper end face of the lower semi-circular pipe 6, and the first butt joint plate is connected with the second butt joint plate through a second connecting piece 5;
a first groove is formed in one side, opposite to the first flange plate 1, of the second flange plate 3 along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate along the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate along the axial direction of the pipeline, a third groove is formed in the first butt joint plate or the second butt joint plate provided with the second groove along the radial direction of the pipeline, and the third groove is communicated with the second groove; a fifth groove is formed in one side, opposite to the first flange plate 1, of the second flange plate 3 along the radial direction of the pipeline; one end of the fifth groove is communicated with the first groove, and the other end of the fifth groove is communicated with the third groove; a sixth groove is formed in one side, opposite to the second flange plate 3, of the first flange plate 1 along the radial direction of the pipeline; the first groove, the second groove and the third groove are all grooves with different depths and widths;
the first sealing element 7 is arranged in the first groove, the second sealing element 8 is arranged in the second groove, the third groove, the fifth groove and the sixth groove, and the first sealing element 7 is connected with the second sealing element 8; the middle area of the fifth groove and the sixth groove jointly form a twist-shaped transition area, and the twist-shaped transition area is used for enabling the second sealing element 8 arranged in the fifth groove and the sixth groove to be in transition from vertical compression type sealing and rotation to left-right compression type sealing; the length of the middle region of the fifth groove is the same as the length of the sixth groove.
By applying the technical scheme of the invention, the second groove and the third groove are arranged on the butt joint plate of the upper semicircular pipe or the lower semicircular pipe, the first groove and the fifth groove are arranged on the second flange plate, the sixth groove is arranged on the first flange plate, and the middle area of the fifth groove and the sixth groove jointly form a twist-shaped transition area, so that the second sealing element arranged in the fifth groove and the sixth groove is in transition from vertical compression type sealing rotation to left-right compression type sealing, and the effective sealing of the joint of the first sealing element and the second sealing element is ensured. Compared with welding sealing, the sealing structure of the split vacuum pipeline is detachable, has better anti-fatigue property, and is low in construction difficulty and high in construction precision. Meanwhile, due to the arrangement mode, the processing depth of the fifth groove does not need to be changed, the processing is easier, and the sealing effect is better.
The present embodiment is different from the above embodiments only in that, in order to facilitate the machining of the twist-shaped transition region, the fifth groove and the sixth groove are used instead of the fourth groove in the above embodiments, and the rest of the arrangement is the same. For the same place, it is not described in detail in this embodiment, and only the place with different place will be described in detail below.
Fig. 9 shows a schematic cross-sectional view at the beginning C-C of the transition region of the fifth trench and the sixth trench in fig. 4. As shown in fig. 9, at the C-C section, the depth of the fifth trench is a, the width is a, the depth of the sixth trench is b-a, and the width is a, so that the middle region of the fifth trench and the sixth trench together form a trench having a depth of b and a width of a. As shown in fig. 9, the second seal member 8 disposed in the fifth groove and the sixth groove has main seal surfaces of both side surfaces of the fifth groove and the sixth groove, and auxiliary seal surfaces of a bottom surface of the fifth groove and a bottom surface of the sixth groove.
The middle area of the fifth groove and the sixth groove form a twist-shaped transition area which is a groove with different depth and width.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A detachable split type vacuum pipeline is characterized by comprising a first flange plate (1), a first connecting piece (2), a second flange plate (3), an upper semicircular pipe (4), a second connecting piece (5), a lower semicircular pipe (6), a first sealing piece (7) and a second sealing piece (8);
one side of the second flange plate (3) is connected with the first flange plate (1) through the first connecting piece (2), the upper half part of the other side is connected with the upper semicircular pipe (4), and the lower half part is connected with the lower semicircular pipe (6);
a first butt joint plate is arranged on the lower end face of the upper semicircular pipe (4), a second butt joint plate is arranged on the upper end face of the lower semicircular pipe (6), and the first butt joint plate is connected with the second butt joint plate through the second connecting piece (5);
a first groove is formed in one side, opposite to the first flange plate (1), of the second flange plate (3) along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate along the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate along the axial direction of the pipeline, a third groove is formed in the first butt joint plate or the second butt joint plate provided with the second groove along the radial direction of the pipeline, and the third groove is communicated with the second groove; a fourth groove is formed in one side, opposite to the first flange plate (1), of the second flange plate (3) along the radial direction of the pipeline; one end of the fourth groove is communicated with the first groove, and the other end of the fourth groove is communicated with the third groove; the first groove, the second groove, the third groove and the fourth groove are all grooves with different depths and widths;
the first sealing element (7) is arranged in the first groove, the second sealing element (8) is arranged in the second groove, the third groove and the fourth groove, and the first sealing element (7) is connected with the second sealing element (8); the fourth groove is provided with a twist-shaped transition area for enabling the second sealing element (8) arranged in the fourth groove to be in transition from vertical compression type sealing rotation to left-right compression type sealing.
2. A detachable split type vacuum pipeline is characterized by comprising a first flange plate (1), a first connecting piece (2), a second flange plate (3), an upper semicircular pipe (4), a second connecting piece (5), a lower semicircular pipe (6), a first sealing piece (7) and a second sealing piece (8);
one side of the second flange plate (3) is connected with the first flange plate (1) through the first connecting piece (2), the upper half part of the other side is connected with the upper semicircular pipe (4), and the lower half part is connected with the lower semicircular pipe (6);
a first butt joint plate is arranged on the lower end face of the upper semicircular pipe (4), a second butt joint plate is arranged on the upper end face of the lower semicircular pipe (6), and the first butt joint plate is connected with the second butt joint plate through the second connecting piece (5);
a first groove is formed in one side, opposite to the first flange plate (1), of the second flange plate (3) along the circumferential direction of the pipeline; a second groove is formed in one side, opposite to the first butt joint plate, of the second butt joint plate along the axial direction of the pipeline or one side, opposite to the second butt joint plate, of the first butt joint plate along the axial direction of the pipeline, a third groove is formed in the first butt joint plate or the second butt joint plate provided with the second groove along the radial direction of the pipeline, and the third groove is communicated with the second groove; a fifth groove is formed in one side, opposite to the first flange plate (1), of the second flange plate (3) along the radial direction of the pipeline; one end of the fifth groove is communicated with the first groove, and the other end of the fifth groove is communicated with the third groove; a sixth groove is formed in one side, opposite to the second flange plate (3), of the first flange plate (1) along the radial direction of the pipeline; the first groove, the second groove and the third groove are all grooves with different depths and widths;
the first sealing element (7) is arranged in the first groove, the second sealing element (8) is arranged in the second groove, the third groove, the fifth groove and the sixth groove, and the first sealing element (7) is connected with the second sealing element (8); the middle area of the fifth groove and the sixth groove jointly form a twist-shaped transition area which is used for enabling the second sealing element (8) arranged in the fifth groove and the sixth groove to be in transition from vertical compression type sealing rotation to left-right compression type sealing; the length of the middle region of the fifth groove is the same as the length of the sixth groove.
3. A detachable split vacuum pipe according to claim 1 or 2, wherein the first sealing member (7) is a sealing ring and the second sealing member (8) is a sealing strip.
4. The detachable split-type vacuum pipeline of claim 3, wherein the cross-sectional shapes of the sealing ring and the sealing strip are circular and have the same size.
5. The detachable split-type vacuum pipeline according to claim 3, wherein the sealing ring and the sealing strip are made of rubber.
6. A detachable split vacuum pipe according to claim 1 or 2, characterized in that the first connector (2) is a bolt.
7. A detachable split vacuum pipe according to claim 1 or 2, characterized in that the second connector (5) is a screw.
8. A detachable split vacuum pipe according to claim 1 or 2, characterized in that the upper semicircular tube (4) and the lower semicircular tube (6) are made of metal.
9. A detachable split vacuum pipe according to claim 1 or 2, wherein the first butt plate and the second butt plate have reinforcing ribs.
CN202010572393.9A 2020-06-22 2020-06-22 Detachable split type vacuum pipeline Active CN113898737B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115027510A (en) * 2022-07-13 2022-09-09 中铁第四勘察设计院集团有限公司 Low vacuum pipeline structure with temperature keeping function

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29602109U1 (en) * 1996-02-02 1996-04-11 Kessel, Bernhard, 85101 Lenting Device for sealing a film on a shaft or pipe
JPH0914545A (en) * 1995-04-28 1997-01-17 Fukushin Sangyo:Kk Pipe joint and packing
JP2004028243A (en) * 2002-06-27 2004-01-29 Yoshihiro Shiotani Sealing method, sealing material and sealing device of vacuum body
US20110074116A1 (en) * 2009-09-29 2011-03-31 Press-Seal Gasket Corporation Collapsible expansion mechanism for effecting a seal
CN106065982A (en) * 2016-06-26 2016-11-02 杨越 Unmanned boat-carrying maintenance fixture
CN207989956U (en) * 2018-01-31 2018-10-19 浙江海帆机械有限公司 A kind of anticorrosion seal type flange
DE102018120537A1 (en) * 2018-08-23 2020-02-27 Elringklinger Ag sealing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0914545A (en) * 1995-04-28 1997-01-17 Fukushin Sangyo:Kk Pipe joint and packing
DE29602109U1 (en) * 1996-02-02 1996-04-11 Kessel, Bernhard, 85101 Lenting Device for sealing a film on a shaft or pipe
JP2004028243A (en) * 2002-06-27 2004-01-29 Yoshihiro Shiotani Sealing method, sealing material and sealing device of vacuum body
US20110074116A1 (en) * 2009-09-29 2011-03-31 Press-Seal Gasket Corporation Collapsible expansion mechanism for effecting a seal
CN106065982A (en) * 2016-06-26 2016-11-02 杨越 Unmanned boat-carrying maintenance fixture
CN207989956U (en) * 2018-01-31 2018-10-19 浙江海帆机械有限公司 A kind of anticorrosion seal type flange
DE102018120537A1 (en) * 2018-08-23 2020-02-27 Elringklinger Ag sealing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周到;田旭东;钟瑜;王磊;: "空气源热泵热水机组压缩机密封结构设计", 石油化工高等学校学报, vol. 22, no. 2, pages 52 - 55 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115027510A (en) * 2022-07-13 2022-09-09 中铁第四勘察设计院集团有限公司 Low vacuum pipeline structure with temperature keeping function
CN115027510B (en) * 2022-07-13 2023-07-04 中铁第四勘察设计院集团有限公司 Low vacuum pipeline structure with temperature keeping function

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