CN115596907A - Pipeline connecting structure - Google Patents
Pipeline connecting structure Download PDFInfo
- Publication number
- CN115596907A CN115596907A CN202110772793.9A CN202110772793A CN115596907A CN 115596907 A CN115596907 A CN 115596907A CN 202110772793 A CN202110772793 A CN 202110772793A CN 115596907 A CN115596907 A CN 115596907A
- Authority
- CN
- China
- Prior art keywords
- sealing
- connecting piece
- sleeve
- lantern ring
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 109
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 31
- 239000010439 graphite Substances 0.000 claims abstract description 31
- 238000012856 packing Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a pipeline connecting structure which comprises a first connecting piece, a second connecting piece, a first sealing lantern ring, a graphite packing and a second sealing lantern ring, wherein the second connecting piece is provided with an extended sleeve, the sleeve is provided with a main body part and a limiting part, the limiting part is arranged on the periphery of the main body part, the graphite packing is arranged between the first connecting piece and the sleeve, the first sealing lantern ring is sleeved outside the first connecting piece, the first end part of the first sealing lantern ring extends to the position between the first connecting piece and the sleeve and presses against the graphite packing, the second sealing lantern ring is sleeved on the periphery of the main body part and presses against the limiting part, and the first sealing lantern ring is fixedly connected with the second sealing lantern ring. Axial and radial sealing between the first connecting piece and the second connecting piece is realized through axial and radial extrusion of the first sealing sleeve ring and the second sealing sleeve ring on the graphite packing, and the sealing device has good sealing performance under the working condition of high temperature and high pressure.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of pipeline connection, in particular to a pipeline connection structure.
[ background of the invention ]
In an automobile air conditioning system, an O-shaped ring made of plastics or rubber is usually adopted as a connecting pipeline sealing element for a common refrigerant, but in a high-temperature and high-pressure environment, the O-shaped ring is usually deformed too much to cause refrigerant leakage.
The new refrigerant is used more and more in the automobile air conditioning system, the working pressure of the new refrigerant is about 10 times higher than that of the traditional refrigerant R134a, and common sealing elements such as plastics, rubber and the like are not applicable to the new air conditioning system due to the characteristics of high operating pressure and high temperature. Therefore, a pipeline connecting structure capable of keeping good sealing performance in a high-temperature and high-pressure environment is needed to meet the requirement on the sealing performance of the connecting pipeline of the automobile air conditioning system.
[ summary of the invention ]
The invention aims to provide a pipeline connecting structure capable of keeping good sealing performance under high-temperature and high-pressure environments.
In order to realize the purpose, the following technical scheme is adopted:
the utility model provides a pipeline connecting structure, includes first connecting piece, the second connecting piece, the first sealed lantern ring, the graphite packing and the sealed lantern ring of second, first connecting piece and second connecting piece relatively fixed, the second connecting piece is equipped with the sleeve of extension, the sleeve has main part and spacing portion, spacing portion sets up in the main part periphery, the graphite packing sets up between first connecting piece and the sleeve, first sealed lantern ring cover is located outside the first connecting piece, the first end of the first sealed lantern ring extends to between first connecting piece and the sleeve, the first end of the first sealed lantern ring supports and presses the graphite packing, the second sealed lantern ring cover is established in main part periphery and is supported and pressed spacing portion, first sealed lantern ring and second sealed lantern ring fixed connection.
The first connecting piece is provided with an annular boss, the annular boss is arranged on the outer periphery of the first connecting piece, the annular boss is contained in the sleeve, and the graphite packing is abutted against the annular boss.
The pipeline connecting structure further comprises a sealing element, an accommodating groove for accommodating the sealing element is formed in the first connecting element, a protrusion is arranged on the surface, facing the first connecting element, of the second connecting element, and part or all of the protrusion is accommodated in the accommodating groove and abuts against the sealing element.
The accommodating grooves comprise a first accommodating groove and a second accommodating groove which are arranged on the first connecting piece, and the protrusions comprise first protrusions matched with the first accommodating groove and second protrusions matched with the second accommodating groove.
The sealing element comprises a first sealing element and a second sealing element, the first sealing element is contained in the first containing groove and is pressed by the first protrusion, and the second sealing element is contained in the second containing groove and is pressed by the second protrusion.
The sealing element is a metal gasket or a graphite gasket.
The first sealing lantern ring is provided with a second end portion protruding in the radial direction, the second sealing lantern ring is provided with a connecting portion protruding in the radial direction, the second end portion and the connecting portion are provided with bolt holes corresponding to each other, and the first sealing lantern ring is fixedly connected with the second sealing lantern ring through bolts.
The outer surface of the first connecting piece is provided with an external thread, the inner surface of the first sealing sleeve ring is provided with an internal thread, and the first sealing sleeve ring is fixedly connected with the first connecting piece through a thread.
The outer peripheral surface of the second connecting piece is provided with a locking surface with the outer diameter gradually increasing on a path towards the limiting part, and the second sealing lantern ring is sleeved outside the second connecting piece.
The first connecting piece comprises a first channel, the second connecting piece comprises a second channel, the first channel is communicated with the second channel, the first channel is overlapped with the central axis of the second channel, the annular boss is overlapped with the central axis of the first channel, and the sleeve is overlapped with the central axis of the second channel.
In the pipeline connecting structure in the technical scheme, the second sealing sleeve ring is sleeved on the periphery of the sleeve and abuts against the limiting part, so that the sleeve can radially extrude the graphite packing, and further, the first connecting piece and the second connecting piece can be radially sealed; the first end of the first sealing lantern ring supports against the graphite packing, axial sealing between the first connecting piece and the second connecting piece is achieved, the graphite packing has good high-temperature and high-pressure resistant characteristics, and therefore the pipeline connecting assembly can be guaranteed to have good sealing performance at high temperature and under high pressure.
Drawings
Fig. 1 is a sectional view of a piping connection structure according to an embodiment of the present invention;
fig. 2 is a sectional view of a pipe connection structure according to another embodiment of the present invention;
fig. 3 is a sectional view of a pipe connection structure according to another embodiment of the present invention;
fig. 4 is a sectional view of a pipe connection structure according to another embodiment of the present invention;
fig. 5 is a sectional view of a piping connection structure according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Referring to fig. 1 to 3, a pipeline connecting structure capable of maintaining good sealing performance at high temperature and high pressure includes a first connecting member 1 and a second connecting member 2, the first connecting member 1 is provided with a first passage 10 communicated with a first connecting pipe (not shown in the drawings), the second connecting member 2 is provided with a second passage 20 communicated with a second connecting pipe (not shown in the drawings), the first connecting member 1 and the second connecting member 2 are relatively fixedly disposed, and the first passage 10 is communicated with the second passage 20. The first connecting pipe and the second connecting pipe can be respectively connected with the first connecting piece 1 and the second connecting piece 2 in a sealing mode through threads, riveting, bonding and the like.
The second connecting piece 2 is equipped with the sleeve 21 that extends, the sleeve 21 has main part and spacing portion 211, spacing portion 211 sets up in the main part periphery, the internal diameter of sleeve 21 is greater than the external diameter of first connecting piece 1, graphite packing 4 sets up between first connecting piece 1 and the sleeve 21, 3 covers of first sealing lantern ring are located outside first connecting piece 1, the first end 31 of the first sealing lantern ring 3 extends to between first connecting piece 1 and the sealing pressure plate 21, the first end 31 of the first sealing lantern ring 3 supports and presses graphite packing 4, 5 covers of the second sealing lantern ring are established in the sleeve main part periphery and are supported and pressed spacing portion 211, the first sealing lantern ring 3 and 5 fixed connection of the second sealing lantern ring.
Thus, the second sealing sleeve ring 5 sleeved on the periphery of the sleeve 21 extending from the second connecting piece 2 is used for realizing the radial extrusion of the sleeve 21 on the graphite packing 4, and further realizing the radial sealing between the first connecting piece 1 and the second connecting piece 2; the axial extrusion of the first end 31 through the first sealed lantern ring 3 to graphite packing 4 realizes the axial seal between first connecting piece 1 and the second connecting piece 2, and graphite packing 4 has good high temperature resistant high pressure characteristic, consequently, can guarantee pipeline coupling assembling has good sealing performance under high temperature, high pressure.
In order to realize better sealed effect, first connecting piece 1 has annular boss 11, annular boss 11 set up in the outer peripheral edges of first connecting piece 1, annular boss 11 accept in sleeve 21, graphite packing 4 supports and presses annular boss 11, so, can avoid graphite packing 4 to expose in the connection terminal surface department of first connecting piece 1 and second connecting piece 2, further reduce pipeline coupling assembling's the risk of revealing.
The fixing manner of the first sealing collar 3 and the second sealing collar 5 is various, and is not limited herein, in an embodiment, the first sealing collar 3 has a second end portion protruding in a radial direction, the second sealing collar 5 has a connecting portion protruding in a radial direction, both the second end portion of the first sealing collar 3 and the connecting portion of the second sealing collar 5 protrude from the limiting portion 211 of the sleeve 21, the second end portion and the connecting portion are provided with bolt holes corresponding to each other, the first sealing collar 3 and the second sealing collar 5 are fixedly connected through bolts, a sealing gap between the first sealing collar 3 and the graphite packing 4 can be adjusted by adjusting the bolts, and the graphite packing 4 is compressed to press the first connecting member 1, so that a good axial sealing effect is achieved.
The sleeving connection between the first sealing collar 3 and the first connecting member 1 is multiple, and is not limited herein, in an embodiment, an external thread is disposed on an outer surface of the first connecting member 1, an internal thread is disposed on an inner surface of the first sealing collar 3, and the first sealing collar 3 is fixed to the first connecting member 1 through a threaded connection.
The second sealing collar 5 and the second connecting member 2 are sleeved in a plurality of ways, which are not limited herein, in one embodiment, a locking surface with an outer diameter gradually increasing is arranged on the outer circumferential surface of the second connecting member 2 on a path toward the limiting portion 211, and the second sealing collar 5 is fixedly sleeved outside the second connecting member 2 through the locking surface.
Referring to fig. 4 and 5, in another embodiment, the pipeline connecting structure further includes a sealing member 6, a receiving groove for receiving the sealing member 6 is formed on the first connecting member 1, a protrusion 7 is formed on a surface of the second connecting member 2 facing the first connecting member 1 and is received in the receiving groove, and a part or all of the protrusion 7 is received in the receiving groove and abuts against the sealing member 6.
In order to achieve a better sealing effect, the sealing elements 6 may be provided in two, where the sealing elements 6 include a first sealing element 61 and a second sealing element 62, and the receiving grooves include a first receiving groove and a second receiving groove provided at an end of the first connecting element 1; correspondingly, the protrusion 7 is provided as a first protrusion 71 adapted to the first receiving groove and a second protrusion 72 adapted to the second receiving groove.
During assembly, the first sealing element 61 is accommodated in the first accommodating groove and pressed by the first protrusion 71, and the second sealing element 62 is accommodated in the second accommodating groove and pressed by the second protrusion 72, so as to ensure the reliability of sealing.
The cross-sectional shape of the protrusion 7 is substantially consistent with that of the accommodating groove, so that after the sealing element 6 is pressed and accommodated in the accommodating groove, the protrusion 7 can provide stable pressing force, and the sealing element 6 cannot influence the sealing reliability due to the shaking or displacement of the protrusion 7.
The sealing element 6 is a metal gasket or a graphite gasket.
Compared with traditional sealing rings made of plastics, rubber and the like, the metal gasket has higher high-temperature and high-pressure resistance, so that a good sealing effect can be ensured in high-temperature and high-pressure environments.
The graphite gasket can be made of high-purity graphite material, and also can be made by mixing high-purity graphite with high polymer material or metal material. It has the characteristics of low leakage, low stress relaxation, high amount of springback compensation, and thus can be reused. Meanwhile, the graphite has the characteristic of high temperature resistance, so that a good sealing effect can be ensured in a high-temperature and high-pressure environment.
The metal gasket or the graphite gasket can further improve the sealing performance of the pipeline connecting assembly in a high-temperature and high-pressure environment, and leakage of a refrigerant is effectively avoided.
In order to further ensure the sealing effect of the pipeline connecting assembly, the central axes of the first channel 10 and the second channel 20 may be arranged to coincide, the central axes of the first sealing collar 3 and the annular boss 11 coincide with the central axis of the first channel 10, and the central axes of the sleeve 21 and the second sealing collar 5 coincide with the central axis of the second channel 20.
It should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes, combinations and equivalents may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a pipeline connection structure, its characterized in that, includes first connecting piece (1), second connecting piece (2), the first sealing sleeve ring (3), graphite packing (4) and the sealed lantern ring of second (5), first connecting piece (1) and second connecting piece (2) relatively fixed, second connecting piece (2) are equipped with sleeve (21) that extend, sleeve (21) have main part and spacing portion (211), spacing portion (211) set up in the main part periphery, graphite packing (4) set up between first connecting piece (1) and sleeve (21), the first sealing sleeve ring (3) cover is located outside first connecting piece (1), first end (31) of the first sealing sleeve ring (3) extend to between first connecting piece (1) and sleeve (21), first end (31) of the first sealing sleeve ring (3) support and press graphite packing (4), the sealed lantern ring of second (5) cover is established and is supported and is pressed spacing portion (211), the sealed lantern ring (3) is connected with the fixed lantern ring of second (5).
2. The pipe connection structure according to claim 1, wherein the first connecting member (1) has an annular boss (11), the annular boss (11) is disposed on an outer periphery of the first connecting member (1), the annular boss (11) is received in the sleeve (21), and the graphite packing (4) is pressed against the annular boss (11).
3. The pipeline connecting structure according to claim 1, characterized in that the pipeline connecting structure further comprises a sealing element (6), the first connecting element (1) is provided with a receiving groove for receiving the sealing element (6), the surface of the second connecting element (2) facing the first connecting element (1) is provided with a protrusion (7), and part or all of the protrusion (7) is received in the receiving groove and presses against the sealing element (6).
4. The pipe connection structure according to claim 3, wherein the receiving slots comprise a first receiving slot and a second receiving slot provided on the first connecting member (1), and the protrusions comprise a first protrusion (71) adapted to the first receiving slot and a second protrusion (72) adapted to the second receiving slot.
5. The pipe connection according to claim 3, wherein the sealing member (6) comprises a first sealing member (61) and a second sealing member (62), the first sealing member (61) is accommodated in the first accommodating groove and pressed by the first protrusion (71), and the second sealing member (62) is accommodated in the second accommodating groove and pressed by the second protrusion (72).
6. Tubing connection according to one of claims 3 to 5, characterized in that the sealing element (6) is a metal gasket or a graphite gasket.
7. The pipe connection according to claim 2, characterized in that the first sealing collar (3) has a radially projecting second end portion, the second sealing collar (5) has a radially projecting connecting portion, the second end portion and the connecting portion are provided with mutually corresponding bolt holes, and the first sealing collar (3) and the second sealing collar (5) are fixedly connected by means of bolts.
8. The pipeline connecting structure according to claim 1, characterized in that the outer surface of the first connecting piece (1) is provided with external threads, the inner surface of the first sealing collar (3) is provided with internal threads, and the first sealing collar (3) is fixedly connected with the first connecting piece (1) through threads.
9. The pipe connection according to claim 1, wherein the outer periphery of the second connecting member (2) has a locking surface with an outer diameter gradually increasing on a path toward the stopper portion (211), and the second sealing collar (5) is fitted over the second connecting member (2).
10. The pipe connection according to claim 2, characterized in that the first connection comprises a first channel (10) and the second connection comprises a second channel (20), the first channel (10) communicating with the second channel (20), the central axes of the first channel (10) and the second channel (20) coinciding, the central axes of the first sealing collar (3), the annular boss (11) coinciding with the first channel (10), the central axes of the sleeve (21), the second sealing collar (5) coinciding with the second channel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110772793.9A CN115596907A (en) | 2021-07-08 | 2021-07-08 | Pipeline connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110772793.9A CN115596907A (en) | 2021-07-08 | 2021-07-08 | Pipeline connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115596907A true CN115596907A (en) | 2023-01-13 |
Family
ID=84840988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110772793.9A Pending CN115596907A (en) | 2021-07-08 | 2021-07-08 | Pipeline connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115596907A (en) |
-
2021
- 2021-07-08 CN CN202110772793.9A patent/CN115596907A/en active Pending
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