CN114151634A - Temperature compensator for clamping and pressing type pipeline system - Google Patents
Temperature compensator for clamping and pressing type pipeline system Download PDFInfo
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- CN114151634A CN114151634A CN202111500706.0A CN202111500706A CN114151634A CN 114151634 A CN114151634 A CN 114151634A CN 202111500706 A CN202111500706 A CN 202111500706A CN 114151634 A CN114151634 A CN 114151634A
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- 238000007789 sealing Methods 0.000 claims abstract description 172
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 35
- 230000007423 decrease Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a temperature compensator for a clamping and pressing type pipeline system, and belongs to the technical field of pipelines. It has solved the short problem of life. This temperature compensator that card pressure formula pipe-line system used includes that one end is the outer tube of mating end and the inner tube that one end was pegged graft end and was inserted in the outer tube mating end, it all is annular sealing member one and sealing member two to be equipped with in proper order along inner tube insertion direction in the mating end of outer tube, the clearance has between inner tube periphery wall and the outer tube internal perisporium, sealing member one internal perisporium protrusion is provided with sealing part one, the department of contacting mutually is the convex arc surface of orientation near inner tube axis direction with the grafting end periphery wall of inner tube on the sealing part one, two internal perisporium protrusions of sealing member are provided with sealing part two, the grafting end periphery wall of inner tube is equipped with annular cooperation groove, sealing part two inlay in annular cooperation inslot and contact with the tank bottom wall in annular cooperation groove. The temperature compensator for the clamping and pressing type pipeline system has the advantages of long service life, strong function and the like.
Description
Technical Field
The invention belongs to the technical field of pipelines, and relates to a temperature compensator for a clamping and pressing type pipeline system.
Background
In the conventional piping system, thermal expansion and contraction occur when the temperature of the pipe changes, and thermal stress is generated in the pipe if the pipe cannot freely expand or contract with the temperature change. Therefore, such stresses must be taken into account in the pipe design, otherwise they may lead to cracking of the pipe, which affects the proper transport of the medium. At present, in order to prevent the deformation or damage of the pipe caused by thermal elongation or temperature stress when the pipe is heated, it is a common practice to connect a temperature compensator to the pipe for use.
For example, patent application No. 200410040945.2 discloses a stainless steel piston type pipe temperature compensator, which uses a stainless steel inner sleeve with a piston rod having a boss section and at least one sealing ring, and is inserted into the outer sleeve, and a clearance distance is left between the two pipes to enable the two pipes to slide relatively along the axial direction, thereby realizing expansion and contraction when the temperature of the pipe changes to compensate the expansion and contraction of the pipe. However, the pipeline often vibrates during the process of conveying the medium, and the pipeline temperature compensator can only realize free expansion and contraction in the axial direction, but cannot enable the inner pipe or the outer pipe to freely swing correspondingly along with the vibration of the pipeline, so that the inner pipe or the outer pipe is hard-pulled and deformed due to the vibration of the pipeline, and the service life is shortened.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a temperature compensator for a clamping-pressing type pipeline system, and solves the problem of short service life.
The purpose of the invention can be realized by the following technical scheme:
the temperature compensator for the clamping-pressing type pipeline system comprises an outer pipe with one end serving as a matching end and an inner pipe with one end serving as an inserting end and inserted into the matching end of the outer pipe, a first sealing element and a second sealing element which are annular are sequentially arranged in the matching end of the outer pipe along the inserting direction of the inner pipe, the sealing device is characterized in that a gap is formed between the outer peripheral wall of the inner pipe and the inner peripheral wall of the outer pipe, a first sealing part is arranged in a protruding mode on the inner peripheral wall of the first sealing part, the contact position of the first sealing part with the outer peripheral wall of the inserting end of the inner pipe is a convex arc surface close to the axis direction of the inner pipe, a second sealing part is arranged in a protruding mode on the inner peripheral wall of the second sealing part, the outer peripheral wall of the inserting end of the inner pipe is provided with an annular matching groove, the second sealing part is embedded in the annular matching groove and is in contact with the bottom wall of the annular matching groove, and a gap which enables the inner pipe and the outer pipe to move relatively along the axial direction is formed between the second sealing part and at least one side groove wall of the annular matching groove.
When in use, two stainless steel pipe fittings to be connected are respectively connected with the other ends of the inner pipe and the outer pipe. Because the gaps are formed between the groove walls on the two sides of the annular matching groove and the second sealing part, the inner pipe or the outer pipe can axially shift, the maximum expansion amount can be calculated in advance according to a formula of pipeline compensation amount, and the size of the gap is designed according to the expansion amount (taking DN25 pipe as an example, the maximum expansion amount is about 12mm generally), so that the axial expansion amount of the temperature compensator in actual temperature change can be ensured, and the first sealing part and the second sealing part act simultaneously, so that the inner pipe is supported in a normal state to avoid deflection. Simultaneously, because the department of contact mutually with inner tube plug-in connection end periphery wall on the sealing is the convex arc surface of being close to inner tube axis direction, can warp relatively easily during consequently sealing atress, has the clearance between the both sides cell wall of the last annular fit groove of reunion and the both sides cell wall of sealing two and makes inner tube or outer tube form corresponding angle's swing thereupon when the pipeline appears vibrating to hard extrusion appears between avoiding inner tube and the outer tube with increase of service life. Moreover, such a structure makes the space capable of swinging relatively large, and if there is no gap, the entire annular fitting groove is filled with the second seal portion, resulting in a small space capable of swinging.
In the temperature compensator for the clamping and pressing type pipeline system, the cross section of the first sealing part is in a circular crown shape or a semicircular shape.
The cross section of the first sealing part is in a circular crown shape or a semicircular shape, so that the edge of the cross section of the first sealing part is necessarily an outward convex circular arc surface, and the first sealing part is more easily extruded and deformed when the pipeline shakes, so that the inner pipe or the outer pipe swings correspondingly.
In the temperature compensator for the clamp-press type pipeline system, the cross section of the first sealing element is square, the sealing part is positioned in the middle of the first sealing element along the axial direction of the outer pipe, and the distance between two ends of an arc in the cross section of the sealing part is 1/3-1/2 of the thickness of the first sealing element along the axial direction of the outer pipe.
Through the arrangement, the deformation capacity of the first sealing part can be further improved, the inner pipe or the outer pipe can swing more easily and at a larger angle when the pipeline shakes, and the applicability of the temperature compensator for the clamping and pressing type pipeline system is improved.
In the temperature compensator for the clamping and pressing type pipeline system, the second sealing part is in an annular block shape, and the distance between the two side wall of the annular matching groove is larger than the distance between the two side walls of the second sealing part.
The annular block shape ensures that the second sealing part has certain thickness, so that the second sealing part can be in surface contact with the outer peripheral wall of the inner pipe at the annular matching groove, and the sealing effect is improved. And the distance between the groove walls on the two sides of the annular matching groove is greater than the distance between the two side walls of the sealing part, so that the required clearance for the inner pipe to move relative to the outer pipe along the axial direction is ensured.
In the temperature compensator for the clamping and pressing type pipeline system, one end of one side groove wall of the sealing part II, which is adjacent to the sealing part I, close to the center line of the outer pipe is obliquely arranged towards the direction far away from the sealing part I.
The purpose of this setting is that the inner pipe can be assembled with the outer pipe more easily while guaranteeing that the sealing effect is improved through the surface contact, because the sealing member one and the sealing member two are installed in the mating end of the outer pipe, when the inner pipe is inserted into the outer pipe, the inclined setting of the side wall of the sealing part two can play a role of guiding to reduce the resistance, so that the inner pipe can be extruded through the sealing part two which is in the shape of annular block more easily.
In the temperature compensator for the clamping and pressing type pipeline system, the cross section of the second sealing part is in an isosceles trapezoid shape, the distance between two sides of the second sealing part gradually decreases towards the direction close to the central line of the outer pipe, the distance between two side groove walls of the annular matching groove gradually decreases towards the direction close to the central line of the outer pipe, and the two side groove walls of the annular matching groove are parallel to two corresponding side walls of the second sealing part.
Through the arrangement, the assembly convenience is ensured, meanwhile, the swinging of the inner pipe or the outer pipe is easier, and the applicability of the temperature compensator is improved.
In the temperature compensator for the clamping and pressing type pipeline system, the cross section of the second sealing element is square, abdicating surfaces which are obliquely arranged are connected between two side walls of the second sealing part and two side walls of the second sealing element respectively, the distance between the two abdicating surfaces is gradually reduced towards the direction close to the central line of the outer pipe, and the inclination angle of the abdicating surfaces is greater than the corresponding side wall of the second sealing part.
The design of the abdicating surface can form abdicating for the connection of the groove walls at the two sides of the annular matching groove and the outer wall of the inserting end when the inner pipe or the outer pipe swings, and the swinging angle of the inner pipe or the outer pipe is further increased.
The temperature compensator for the clamping-pressing type pipeline system comprises an outer pipe with one end serving as a matching end and an inner pipe with one end serving as an inserting end and inserted into the matching end of the outer pipe, a first sealing element and a second sealing element which are annular are sequentially arranged outside the inserting end of the inner pipe along the inserting direction, its characterized in that, inner tube periphery wall and outer tube internal perisporium between have the clearance, the periphery wall protrusion of sealing member one is provided with sealing part one, the convex arc surface of the cooperation end internal perisporium department of sealing part one with the outer tube is for keeping away from outer tube axis direction convex, the periphery wall protrusion of sealing part two is provided with sealing part two, the cooperation end internal perisporium of outer tube is equipped with the ring channel, sealing part two imbeds in the ring channel and contacts with the tank bottom wall of ring channel, have the clearance that enables inner tube and outer tube relative drunkenness along the axial between sealing part two and at least one side cell wall of ring channel.
Compared with the prior art, the temperature compensator for the clamping and pressing type pipeline system has the following advantages:
1. gaps are formed between the groove walls on the two sides of the annular matching groove and the second sealing part, so that the inner pipe and the outer pipe can move relatively in the axial direction, and the compensation function of the pipeline during temperature change is ensured;
2. the outer wall of the inserting end of the first sealing part, which is contacted with the outer wall of the inner pipe, is set to be an arc surface protruding towards the direction close to the axis of the inner pipe, the first sealing part is easy to deform when stressed, and a gap is formed between the groove walls on the two sides of the annular matching groove and at least one groove wall of the second sealing part, so that the inner pipe or the outer pipe can swing at a corresponding angle when the pipeline vibrates, and hard extrusion between the inner pipe and the outer pipe is avoided to prolong the service life.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of a temperature compensator for a clamp-on tubing system.
Fig. 2 is an enlarged view at a in fig. 1.
FIG. 3 is an exploded cross-sectional view of a first embodiment of the temperature compensator for a clamp-on tubing system.
FIG. 4 is a cross-sectional view of a second sealing member of the first embodiment of the temperature compensator for a clamp-on tubing system.
In the figure, 1, an outer tube; 1a, a mating end; 2. an inner tube; 2a, a plug end; 2a1, annular mating groove; 3. a first sealing element; 3a, a first sealing part; 4. a second sealing element; 4a, a second sealing part; 4b, a abdication surface.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1 and 4, the temperature compensator for a clamping and pressing type pipeline system includes an outer tube 1 with one end serving as a mating end 1a and an inner tube 2 with one end serving as an inserting end 2a and inserted into the mating end 1a of the outer tube 1, and the other ends of the outer tube 1 and the inner tube 2 are clamping and pressing connection ends used for being fixed with a thin-wall stainless steel pipe fitting in a clamping and pressing manner. Be equipped with annular mounting groove one and annular mounting groove two in proper order along inner tube 2 direction of insertion in the cooperation end 1a of outer tube 1, be equipped with sealing member one 3 in the annular mounting groove one, be equipped with sealing member two 4 in the annular mounting groove two, sealing member one 3 all is the annular with sealing member two 4, the grafting end 2a external diameter of inner tube 2 is less than the cooperation end 1a internal diameter of outer tube 1, sealing member one 3 cooperatees with the grafting end 2a of inner tube 2 simultaneously with sealing member two 4 and forms sealedly.
Specifically, as shown in fig. 1 to 3, a gap is formed between the outer peripheral wall of the inner tube 2 and the inner peripheral wall of the outer tube 1, a first sealing portion 3a is convexly arranged on the inner peripheral wall of the first sealing member 3, the first sealing portion 3a is annular, and a portion of the first sealing portion 3a, which is in contact with the outer peripheral wall of the insertion end 2a of the inner tube 2, is an arc surface protruding in the axial direction close to the inner tube 2. In this embodiment, the cross section of the first sealing portion 3a is a circular crown or a semicircular cross section, the cross section of the first sealing member 3 is a square cross section, the first sealing portion 3a is located at the middle of the first sealing member 3 along the axial direction of the outer tube 1, and the distance between the two ends of the circular arc in the cross section of the first sealing portion 3a is 1/3-1/2 of the thickness of the first sealing member 3 along the axial direction of the outer tube 1, which may be 1/3, 1/2, 3/7, or the like. The inner peripheral wall of the second sealing element 4 is convexly provided with a second annular sealing part 4a, the outer peripheral wall of the inserting end 2a of the inner pipe 2 is provided with an annular matching groove 2a1, the second sealing part 4a is embedded into the annular matching groove 2a1, the second sealing part 4a is in surface contact with the outer peripheral wall of the inner pipe 2 at the annular matching groove 2a1, and a gap enabling the inner pipe 2 or the outer pipe 1 to move in the axial direction is formed between the second sealing part 4a and the two side groove walls of the annular matching groove 2a 1.
As shown in fig. 1 to 4, the second sealing portion 4a is in the shape of an annular block, so that the second sealing portion 4a has a certain thickness and can be in surface contact with the outer peripheral wall of the inner tube 2 at the annular engaging groove 2a1 to improve the sealing effect, and the distance between the groove walls of the two sides of the annular engaging groove 2a1 is greater than the distance between the two corresponding side walls of the second sealing portion 4a to enable the inner tube 2 to axially move. The end, close to the central line of the outer pipe 1, of the side groove wall of the sealing part two 4a adjacent to the sealing part one 3 is obliquely arranged towards the direction far away from the sealing part one 3, so that the sealing effect is improved through surface contact, meanwhile, the inner pipe 2 can be assembled with the outer pipe 1 more easily, because the sealing part one 3 and the sealing part two 4 are arranged in the matching end 1a of the outer pipe 1, when the inner pipe 2 is inserted into the outer pipe 1, the oblique arrangement of the side wall of the sealing part two 4a can play a role in guiding to reduce resistance, and the inner pipe 2 can be extruded through the sealing part two 4a in an annular block shape more easily. In this embodiment, the cross section of the second sealing portion 4a is in an isosceles trapezoid shape, the distance between two sides of the isosceles trapezoid shape gradually decreases toward the direction close to the center line of the outer tube 1, the distance between two side groove walls of the annular engaging groove 2a1 gradually decreases toward the direction close to the center line of the outer tube 1, and two side groove walls of the annular engaging groove 2a1 are parallel to two corresponding side walls of the second sealing portion 4 a. The section of the second sealing element 4 is square, the thickness of the second sealing element 4 in the axial direction of the outer tube 1 is larger than that of the second sealing element 4a, the two side walls of the second sealing element 4a and the two side walls of the second sealing element 4 are respectively connected with a yielding surface 4b which is obliquely arranged, the distance between the two yielding surfaces 4b is gradually reduced towards the direction close to the central line of the outer tube 1, and the inclination angle of the yielding surface 4b is larger than the corresponding side wall of the second sealing element 4 a.
During the use, insert two stainless steel pipe fittings that need to connect respectively in the card of inner tube 2 and outer tube 1 presses the link and accomplishes the card through the card and press the instrument and press fixedly. Because the gaps are arranged between the two side walls of the annular matching groove 2a1 and the two side walls of the second sealing part 4a, the inner pipe 2 or the outer pipe 1 can axially move, the size of the gap is designed to ensure that the temperature compensator can meet the axial expansion amount when the actual temperature changes, and due to the simultaneous action of the first sealing part 3a and the second sealing part 4a, the inner pipe 2 is supported in a normal state to avoid deflection. Meanwhile, the cross section of the first sealing part 3a is in a circular crown shape or a semicircular shape, so that the first sealing part is easy to deform, and then a gap is formed between the two side groove walls of the upper annular matching groove 2a1 and the two side groove walls of the second sealing part 4a, so that the inner pipe 2 or the outer pipe 1 can swing at a corresponding angle when the pipe groove vibrates, and hard extrusion between the inner pipe 2 and the outer pipe 1 is avoided, so that the service life is prolonged.
Example two
The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the first sealing element 3 and the second sealing element 4 are disposed outside the insertion end 2a of the inner tube 2, the first sealing portion 3a is protruded from the outer peripheral wall of the first sealing element 3, and the second sealing portion 4a is protruded from the outer peripheral wall of the second sealing element 4, a gap is formed between the outer peripheral wall of the inner tube 2 and the inner peripheral wall of the outer tube 1, the first sealing portion 3a is protruded from the outer peripheral wall of the first sealing element 3, the first sealing portion 3a is a circular arc surface protruded in the direction away from the axis of the outer tube 1 at the position where the first sealing portion 3a contacts the inner peripheral wall of the mating end 1a of the outer tube 1, the second sealing portion 4a is protruded from the outer peripheral wall of the second sealing element 4, an annular groove is formed in the inner peripheral wall of the mating end 1a of the outer tube 1, the second sealing portion 4a is embedded in the annular groove and contacts the groove bottom wall of the annular groove, and a gap is formed between the second sealing portion 4a and at least one side wall of the annular groove, so that the inner tube 2 and the outer tube 1 can move relatively in the axial direction. The second sealing portion 4a is fitted into the annular groove in the first embodiment, which is referred to as the second sealing portion 4a is fitted into the annular fitting groove 2a 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The temperature compensator for the clamping and pressing type pipeline system comprises an outer pipe (1) with one end serving as a matching end (1a) and an inner pipe (2) with one end serving as a splicing end (2a) and inserted into the matching end (1a) of the outer pipe (1), wherein a first annular sealing element (3) and a second annular sealing element (4) are sequentially arranged in the matching end (1a) of the outer pipe (1) along the insertion direction of the inner pipe (2), the temperature compensator is characterized in that a gap is formed between the outer peripheral wall of the inner pipe (2) and the inner peripheral wall of the outer pipe (1), the inner peripheral wall of the first annular sealing element (3a) is convexly provided with a first sealing part (3a), the outer peripheral wall of the first sealing part (3a) which is in contact with the splicing end (2a) of the inner pipe (2) is a circular arc surface which protrudes towards the direction close to the axis of the inner pipe (2), the inner peripheral wall of the second sealing part (4) is convexly provided with a second sealing part (4a), and an annular matching groove (2a) 1) is formed in the outer peripheral wall of the splicing end (2a) of the inner pipe (2), the second sealing part (4a) is embedded in the annular matching groove (2a1) and is in contact with the bottom wall of the annular matching groove (2a1), and a gap enabling the inner pipe (2) and the outer pipe (1) to move relatively in the axial direction is formed between the second sealing part (4a) and at least one side groove wall of the annular matching groove (2a 1).
2. The temperature compensator for a pipe system according to claim 1, wherein the cross-section of the first sealing portion (3a) is a circular crown or a semicircular shape.
3. The temperature compensator for a pipe system according to claim 2, wherein the cross section of the first sealing member (3) is square, the first sealing portion (3a) is located at the middle of the first sealing member (3) in the axial direction of the outer pipe (1), and the distance between the two ends of the arc in the cross section of the first sealing portion (3a) is 1/3-1/2 of the thickness of the first sealing member (3) in the axial direction of the outer pipe (1).
4. The temperature compensator for a pipe system according to claim 1, 2 or 3, wherein the second sealing portion (4a) has a ring-shaped block shape, and the distance between the groove walls of the two side walls of the ring-shaped engaging groove (2a1) is greater than the distance between the two side walls of the second sealing portion (4 a).
5. The temperature compensator for a pipe system according to claim 4, wherein the end of the groove wall of the sealing part II (4a) adjacent to the sealing part I (3) close to the center line of the outer pipe (1) is inclined away from the sealing part I (3).
6. The temperature compensator for clip-on pipe system according to claim 5, wherein the cross section of the second sealing portion (4a) is in the shape of an isosceles trapezoid with the distance between two sides gradually decreasing toward the central line of the outer pipe (1), the distance between two side walls of the annular fitting groove (2a1) gradually decreases toward the central line of the outer pipe (1), and two side walls of the annular fitting groove (2a1) are parallel to the two corresponding side walls of the second sealing portion (4 a).
7. The temperature compensator for the card-pressing type pipeline system according to claim 6, wherein the cross section of the second sealing element (4) is square, the two side walls of the second sealing part (4a) and the two side walls of the second sealing element (4) are respectively connected with an abdicating surface (4b) which is obliquely arranged, the distance between the two abdicating surfaces (4b) is gradually reduced towards the direction close to the central line of the outer pipe (1), and the inclination angle of the abdicating surface (4b) is greater than the corresponding side wall of the second sealing part (4 a).
8. The temperature compensator for the clamping and pressing type pipeline system comprises an outer pipe (1) with one end serving as a matching end (1a) and an inner pipe (2) with one end serving as a splicing end (2a) and inserted into the matching end (1a) of the outer pipe (1), wherein a first annular sealing element (3) and a second annular sealing element (4) are sequentially arranged outside the splicing end (2a) of the inner pipe (2) along the insertion direction of the inner pipe, the temperature compensator is characterized in that a gap is reserved between the outer peripheral wall of the inner pipe (2) and the inner peripheral wall of the outer pipe (1), a first sealing part (3a) is convexly arranged on the outer peripheral wall of the first sealing element (3), the part, which is in contact with the inner peripheral wall of the matching end (1a) of the outer pipe (1), of the first sealing part (3a) is a circular arc surface which is convex towards the direction far away from the axis direction of the outer pipe (1), a second sealing part (4a) is convexly arranged on the outer peripheral wall of the second sealing part (4), and an annular groove is arranged on the inner peripheral wall of the matching end (1a) of the outer pipe (1), the second sealing part (4a) is embedded into the annular groove and is in contact with the bottom wall of the annular groove, and a gap which can enable the inner pipe (2) and the outer pipe (1) to move relatively in the axial direction is formed between the second sealing part (4a) and at least one side groove wall of the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500706.0A CN114151634A (en) | 2021-12-09 | 2021-12-09 | Temperature compensator for clamping and pressing type pipeline system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500706.0A CN114151634A (en) | 2021-12-09 | 2021-12-09 | Temperature compensator for clamping and pressing type pipeline system |
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| Publication Number | Publication Date |
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| CN114151634A true CN114151634A (en) | 2022-03-08 |
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| CN202111500706.0A Pending CN114151634A (en) | 2021-12-09 | 2021-12-09 | Temperature compensator for clamping and pressing type pipeline system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992408A (en) * | 2022-08-01 | 2022-09-02 | 中国航发沈阳发动机研究所 | Pipeline connecting structure |
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| JPH1194163A (en) * | 1997-09-17 | 1999-04-09 | Kubota Corp | Elastic detachment prevention coupling |
| JPH1194153A (en) * | 1997-09-19 | 1999-04-09 | Kubota Corp | Elastic detachment prevention coupling |
| JP2004190700A (en) * | 2002-12-06 | 2004-07-08 | Waterworks Technology Development Organization Co Ltd | Structure of expansion joint |
| CN102301172A (en) * | 2009-01-27 | 2011-12-28 | 株式会社久保田 | Pipe joint |
| WO2016139004A1 (en) * | 2015-03-04 | 2016-09-09 | Contitech Techno-Chemie Gmbh | Connection arrangement |
| CN213982460U (en) * | 2020-11-18 | 2021-08-17 | 浙江班尼戈智慧管网股份有限公司 | Temperature compensator of clamping and pressing type connecting pipeline |
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2021
- 2021-12-09 CN CN202111500706.0A patent/CN114151634A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121598U (en) * | 1992-04-20 | 1992-11-11 | 崔荣祥 | Pipe line extension device |
| JPH1194163A (en) * | 1997-09-17 | 1999-04-09 | Kubota Corp | Elastic detachment prevention coupling |
| JPH1194153A (en) * | 1997-09-19 | 1999-04-09 | Kubota Corp | Elastic detachment prevention coupling |
| JP2004190700A (en) * | 2002-12-06 | 2004-07-08 | Waterworks Technology Development Organization Co Ltd | Structure of expansion joint |
| CN102301172A (en) * | 2009-01-27 | 2011-12-28 | 株式会社久保田 | Pipe joint |
| WO2016139004A1 (en) * | 2015-03-04 | 2016-09-09 | Contitech Techno-Chemie Gmbh | Connection arrangement |
| CN213982460U (en) * | 2020-11-18 | 2021-08-17 | 浙江班尼戈智慧管网股份有限公司 | Temperature compensator of clamping and pressing type connecting pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992408A (en) * | 2022-08-01 | 2022-09-02 | 中国航发沈阳发动机研究所 | Pipeline connecting structure |
| CN114992408B (en) * | 2022-08-01 | 2022-09-30 | 中国航发沈阳发动机研究所 | Pipeline connecting structure |
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