CN219809599U - Expansion joint flange fixing device - Google Patents

Expansion joint flange fixing device Download PDF

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Publication number
CN219809599U
CN219809599U CN202320925867.2U CN202320925867U CN219809599U CN 219809599 U CN219809599 U CN 219809599U CN 202320925867 U CN202320925867 U CN 202320925867U CN 219809599 U CN219809599 U CN 219809599U
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China
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pipeline
expansion joint
flange
screw
screw rod
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CN202320925867.2U
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Chinese (zh)
Inventor
仇宏业
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Jiangsu Nanre Generating Co ltd
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Jiangsu Nanre Generating Co ltd
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Abstract

The utility model relates to the technical field of expansion joints, in particular to an expansion joint flange fixing device which comprises a pipeline expansion joint and a connecting pipeline, wherein two ends of the pipeline expansion joint and two ends of the connecting pipeline are respectively provided with a flange with a big end and a small end, the two ends of the pipeline expansion joint and the flange with the small end of the connecting pipeline are locked and connected through a first screw, and the flange with the big end of the connecting pipeline is locked and connected with a conveying pipeline through a second screw. This expansion joint flange fixing device carries out the setting of big or small head through the pipeline expansion joint, sets up six fixed plates and is connected with connecting tube in the one end of little head to carry out bulk connection with pipeline, connecting tube and pipeline expansion joint through first screw rod and fixed plate, make whole system structure connect as a whole, effectually increased the stability and the security of pipeline expansion joint in the use.

Description

Expansion joint flange fixing device
Technical Field
The utility model relates to the technical field of expansion joints, in particular to an expansion joint flange fixing device.
Background
The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, and can compensate thermal expansion difference of the tube and the shell caused by different wall temperatures, so that the axial load of the tube and the shell is reduced, and the temperature difference stress of the tube, the tube plate and the shell is reduced, the strength damage, the instability damage and the tube pull-out damage are avoided, the expansion joint has various types, and the structure such as waveform, ring plate welding and clamping type is commonly used.
Chinese patent CN218671107U discloses a high temperature resistant pipe expansion joint, on the otic placode of pipe expansion joint threaded connection has the pull rod, makes it play explosion-proof antitorque effect of drawing, has greatly improved expansion joint's safety in utilization.
However, the technical scheme still has the technical defects that: according to the structural characteristics of the expansion joint, the two ends of the expansion joint are limited by the pull rod, and the expansion joint is only reinforced on the structure of the expansion joint, so that the expansion joint cannot be integrated with the whole structure when the expansion joint is installed in a pipeline or glass fiber reinforced plastic, the stability is still poor, and cracks are easily generated at the joint under the conditions of suspension and high pressure, so that leakage is caused.
Disclosure of Invention
The utility model mainly aims to overcome the defects in the prior art and provides an expansion joint flange fixing device. The device carries out setting of big or small head through the pipeline expansion joint, sets up six fixed plates and is connected with connecting tube in the one end of little head to carry out bulk connection with pipeline, connecting tube and pipeline expansion joint through first screw rod and fixed plate, make whole system structure connect as a whole, effectually increased stability and the security etc. of pipeline expansion joint in the use.
The technical scheme adopted by the utility model for realizing the technical purpose is as follows: the expansion joint flange fixing device comprises a pipeline expansion joint and a connecting pipeline, wherein two ends of the pipeline expansion joint and the two ends of the connecting pipeline are respectively provided with a flange with a big end and a small end, the two ends of the pipeline expansion joint are in locking connection with the small end flange of the connecting pipeline through first screws, and the big end flange of the connecting pipeline is in locking connection with a conveying pipeline through second screws;
one side of the small end flange of the pipeline expansion joint is provided with a fixing plate, the fixing plate is provided with four groups and distributed in an annular array around the center of the pipeline expansion joint, one end of the fixing plate is in locking connection with the small end flange of the pipeline expansion joint through bolts, one end of each bolt is further connected in the flange plate of the connecting pipeline in a threaded manner, a plurality of bolts can be arranged, the other end of each fixing plate penetrates through and is connected with a first screw in a threaded manner, and the two ends of each first screw penetrate through and are connected with the big end flange plate of the connecting pipeline and the flange plate of the conveying pipeline in a threaded manner; through the setting of components such as fixed plate and first screw rod, be connected as a whole with the little end ring flange of pipeline expansion joint and pipeline, the effectual stability of increasing the little end ring flange of pipeline expansion joint when using, can avoid the problem that the little end ring flange of pipeline expansion joint is revealed easily in the use.
The small-head flange plate of the pipeline expansion joint is fixedly connected with a first connecting plate and a second connecting plate respectively, the first connecting plate is connected with a second screw rod arranged between the second connecting plates, the large-head flange plate of the pipeline expansion joint is connected through the arrangement of the first connecting plate, the second connecting plate and the second screw rod, the reinforcing effect is achieved, and the pipeline expansion joint is prevented from expanding axially easily in the use process.
Preferably, a first screw cap is arranged at the joint of the fixing plate and the first screw rod, the first screw cap is locked on two sides of the fixing plate through the first screw rod, and the first screw rod and the fixing plate are locked and fixed through the first screw cap.
Preferably, the connection part of the connecting pipeline, the conveying pipeline and the first screw rod is provided with a second screw cap, one second screw cap is locked on the big end flange plate of the connecting pipeline through the first screw rod, the other second screw cap is locked on the flange plate of the conveying pipeline through the first screw rod, and the two ends of the first screw rod are locked and fixed through the second screw cap.
Preferably, the first connecting plate, the second connecting plate and the second screw rod are provided with third screw caps at the joints, the third screw caps are locked on two sides of the first connecting plate and the second connecting plate through the second screw rods, and two ends of the second screw rods are locked and fastened on the first connecting plate and the second connecting plate through the arrangement of the third screw caps, so that the big-end flange plates of the expansion joints are connected.
Preferably, a threaded cylinder and a third screw rod are further arranged between the flanges of the large and small ends of the pipeline expansion joint for connection, one ends of the threaded cylinder and the third screw rod are respectively in threaded connection with the flange of the large and small ends of the pipeline expansion joint, and the pipeline expansion joint is further reinforced in the axial direction through the arrangement of the threaded cylinder and the third screw rod.
The other end threaded connection of third screw rod is in inside the other end of screw tube, through the threaded connection between third screw rod and the screw tube, can make between the two conveniently connect, and conveniently install between the ring flange of pipeline expansion joint big-end.
Preferably, the other end threaded connection of third screw rod has the fourth nut, the other end of screw tube is fixed to be cup jointed the fifth nut, the fourth nut locks in one side of fifth nut, and the fourth nut is apart from adjustable on the third screw rod to can make the third screw rod install the distance of the one end in screw tube inside and adjust, can make the third screw rod install behind the screw tube, the total length of both shortens, conveniently places between the ring flange of pipeline expansion joint big-and-small head.
Compared with the prior art, the utility model has the beneficial effects that: this expansion joint flange fixing device carries out setting of big or small head through the pipeline expansion joint, is connected with connecting tube in six fixed plates of one end setting of little head to carry out bulk connection with pipeline, connecting tube and pipeline expansion joint through first screw rod and fixed plate, make whole system structure connect as a whole, effectually increased the stability and the security of pipeline expansion joint in the use, avoided the big or small head ring flange of pipeline expansion joint to produce the crackle in the junction, perhaps produced after the crackle, the one side that has the crackle continues to enlarge the crackle forcefully.
The expansion joint flange fixing device is characterized in that the expansion joint of the pipeline is further reinforced by the arrangement of the first connecting plate, the second screw and other components, and the expansion joint of the pipeline is further reinforced by the combination of the threaded cylinder, the third screw and other components.
The expansion joint flange fixing device can smoothly solve the problem of slurry leakage caused by the damage of the large head and the small head of the pipeline or the glass fiber reinforced plastic when the defect of slurry leakage is overcome, meanwhile, the replacement of the large head and the small head of the pipeline or the glass fiber reinforced plastic is avoided, the overhaul period is ensured, if the situation is met in the running of a unit, the unit can be prevented from stopping, the machine is directly taken for eliminating the defects, and the application range is wide.
Drawings
Fig. 1 is a schematic diagram of a front view of an expansion joint flange fixing device.
Fig. 2 is a right-side view schematic structure diagram of a small end flange of a pipe expansion joint after installation.
Fig. 3 is a schematic diagram of the front view of the connecting screw barrel and the third screw of the pipe expansion joint.
Fig. 4 is a schematic front view of the screw barrel and the third screw after disassembly.
Wherein:
1-a pipeline expansion joint; 2-connecting pipelines; 3-a conveying pipeline; 4-a fixing plate; 401-a first screw; 402-a first nut; 403-bolts; 404-a second nut; 5-a second screw; 501-a first connection plate; 502-a second connection plate; 503-a third nut; 6-a thread cylinder; 601-a third screw; 602-fourth nut; 603-fifth nut.
Description of the embodiments
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
In the description of the present utility model, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships in which the inventive product is conventionally placed in use, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
As shown in fig. 1-2, an expansion joint flange fixing device comprises a pipeline expansion joint 1 and a connecting pipeline 2, wherein two ends of the pipeline expansion joint 1 and two ends of the connecting pipeline 2 are respectively provided with a flange with a big end and a small end, the two ends of the pipeline expansion joint 1 are in locking connection with the flange with the small end of the connecting pipeline 2 through first screws, and the flange with the big end of the connecting pipeline 2 is in locking connection with a conveying pipeline 3 through second screws.
The one side of the small end flange of the pipeline expansion joint 1 is provided with a fixing plate 4, the fixing plate 4 is provided with four groups and distributed in an annular array around the center of the pipeline expansion joint 1, one end of the fixing plate 4 is in locking connection with the small end flange of the pipeline expansion joint 1 through bolts 403, one end of each bolt 403 is further in threaded connection with the flange of the connecting pipeline 2, a plurality of bolts 403 can be arranged, the other end of the fixing plate 4 is penetrated and in threaded connection with a first screw 401, and the two ends of the first screw 401 are penetrated and in threaded connection with the large end flange of the connecting pipeline 2 and the flange of the conveying pipeline 3; through the setting of components such as fixed plate 4 and first screw rod 401, be connected into a whole with the little end ring flange of pipeline expansion joint 1 and pipeline 3, the effectual stability of increasing the little end ring flange of pipeline expansion joint 1 when using, can avoid the problem that the little end ring flange of pipeline expansion joint 1 is revealed easily in the use.
Further, a first screw cap 402 is arranged at the joint of the fixing plate 4 and the first screw rod 401, the first screw cap 402 is locked on two sides of the fixing plate 4 through the first screw rod 401, and the first screw rod 401 and the fixing plate 4 are locked and fixed through the first screw cap 402.
Further, the connection part of the connecting pipeline 2, the conveying pipeline 3 and the first screw 401 is provided with second nuts 404, one second nut 404 is locked on the large-end flange of the connecting pipeline 2 through the first screw 401, the other second nut 404 is locked on the flange of the conveying pipeline 3 through the first screw 401, and the two ends of the first screw 401 are locked and fixed through the second nuts 404.
The small-head flange plate of the pipeline expansion joint 1 is fixedly connected with a first connecting plate 501 and a second connecting plate 502 respectively, a second screw rod 5 is arranged between the first connecting plate 501 and the second connecting plate 502 to connect, and the large-head flange plate of the pipeline expansion joint 1 is connected through the arrangement of the first connecting plate 501, the second connecting plate 502 and the second screw rod 5, so that the small-head flange plate has a reinforcing effect and can prevent the pipeline expansion joint 1 from expanding axially easily in the use process.
Further, the first connecting plate 501, the second connecting plate 502 and the second screw rod 5 are provided with third nuts 503 at the connection positions, the third nuts 503 are locked on two sides of the first connecting plate 501 and the second connecting plate 502 through the second screw rod 5, and two ends of the second screw rod 5 are locked and fastened on the first connecting plate 501 and the second connecting plate 502 through the arrangement of the third nuts 503, so that the big-end flange plates of the expansion joint 1 are connected.
Specifically, six fixed plates 4 (steel plates) are installed on one side of a small-end flange of the pipeline expansion joint 1 at equal distance, a bolt 403 is installed on one side of each fixed plate 4 (steel plate), then a first screw 401 is installed on the opposite side of the side where the bolt 403 of the fixed plate 4 (steel plate) is located, the first screw 401 is a full-tooth screw, the first screw 401 is installed on the flange of the connecting pipeline 2 and the conveying pipeline 3, the pipeline expansion joint 1, the connecting pipeline 2 and the conveying pipeline 3 are connected into a whole through 6 fixed plates 4 (steel plates) and the first screw 401, and the situation that cracks are generated on the large-end flange of the pipeline expansion joint 1 or the large-end flange of the pipeline expansion joint 1 is forcefully expanded after the cracks are generated is avoided.
Examples
As shown in fig. 3-4, on the basis of the above embodiment, the expansion joint flange fixing device is further provided with a threaded cylinder 6 and a third screw 601 between the flanges of the large head and the small head of the pipe expansion joint 1 for connection, one ends of the threaded cylinder 6 and the third screw 601 are respectively in threaded connection with the flanges of the large head and the small head of the pipe expansion joint 1, and the pipe expansion joint 1 is further reinforced in the axial direction through the arrangement of the threaded cylinder 6 and the third screw 601.
The other end threaded connection of third screw rod 601 is inside the other end of screw tube 6, through the threaded connection between third screw rod 601 and the screw tube 6, can make between the two conveniently connect, and conveniently install between the ring flange of pipeline expansion joint 1 big end.
Further, the other end of the third screw 601 is in threaded connection with a fourth screw cap 602, the other end of the threaded cylinder 6 is fixedly sleeved with a fifth screw cap 603, the fourth screw cap 602 is locked on one side of the fifth screw cap 603, and the distance between the fourth screw cap 602 and the third screw 601 is adjustable, so that the distance between one end of the third screw 601, which is arranged inside the threaded cylinder 6, can be adjusted, the total length of the third screw 601 and the threaded cylinder 6 is shortened after the third screw 601 is arranged inside the threaded cylinder 6, and the third screw is conveniently placed between flanges of the big end and the small end of the pipeline expansion joint 1.
Specifically, during use, install the screw thread of third screw 601 in screw thread section of thick bamboo 6 for after the total length of both shortens, place screw thread section of thick bamboo 6 and third screw 601 between the ring flange of pipe expansion joint 1 big end, then install screw thread section of thick bamboo 6 screw thread in the ring flange of pipe expansion joint 1 big end, rotate and install the screw thread of third screw 601 in the ring flange of pipe expansion joint 1 little end, rotate fourth nut 602 at last, make fourth nut 602 be close to the locking of fifth nut 603, make connect between the ring flange of pipe expansion joint 1 big end, further consolidate pipe expansion joint 1 in the axial.
The scheme in this embodiment may be selectively used in combination with the scheme in other embodiments.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures, equivalent flows or equivalent functional transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims (6)

1. The utility model provides an expansion joint flange fixing device, includes pipeline expansion joint (1) and connecting tube (2), its characterized in that: the two ends of the pipeline expansion joint (1) and the two ends of the connecting pipeline (2) are respectively provided with a flange with big and small heads, the two ends of the pipeline expansion joint (1) are in locking connection with the small-head flange of the connecting pipeline (2) through first screws, and the big-head flange of the connecting pipeline (2) is in locking connection with the conveying pipeline (3) through second screws;
a fixing plate (4) is arranged on one side of the small-end flange of the pipeline expansion joint (1), one end of the fixing plate (4) is in locking connection with the small-end flange of the pipeline expansion joint (1) through a bolt (403), one end of the bolt (403) is further in threaded connection with the flange of the connecting pipeline (2), the other end of the fixing plate (4) penetrates through and is in threaded connection with a first screw rod (401), and two ends of the first screw rod (401) penetrate through and are in threaded connection with the large-end flange of the connecting pipeline (2) and the flange of the conveying pipeline (3);
the small-end flange plate of the pipeline expansion joint (1) is fixedly connected with a first connecting plate (501) and a second connecting plate (502) respectively, and a second screw rod (5) is arranged between the first connecting plate (501) and the second connecting plate (502) for connection.
2. An expansion joint flange fixing device according to claim 1, wherein: the connecting part of the fixing plate (4) and the first screw rod (401) is provided with a first screw cap (402), and the first screw cap (402) is locked on two sides of the fixing plate (4) through the first screw rod (401).
3. An expansion joint flange fixing device according to claim 1, wherein: the connecting pipeline (2), the conveying pipeline (3) and the joint of the first screw rod (401) are provided with second nuts (404), one second nut (404) is locked on the large-end flange plate of the connecting pipeline (2) through the first screw rod (401), and the other second nut (404) is locked on the flange plate of the conveying pipeline (3) through the first screw rod (401).
4. An expansion joint flange fixing device according to claim 1, wherein: the first connecting plate (501), the second connecting plate (502) and the second screw rod (5) are provided with third nuts (503) at the joints, and the third nuts (503) are locked on two sides of the first connecting plate (501) and the second connecting plate (502) through the second screw rod (5).
5. An expansion joint flange fixing device according to claim 1, wherein: a thread cylinder (6) and a third screw rod (601) are arranged between the flanges of the large head and the small head of the pipeline expansion joint (1) for connection, and one ends of the thread cylinder (6) and the third screw rod (601) are respectively in threaded connection with the flanges of the large head and the small head of the pipeline expansion joint (1);
the other end of the third screw rod (601) is in threaded connection with the inside of the other end of the threaded cylinder (6).
6. An expansion joint flange fixing device according to claim 5, wherein: the other end of the third screw rod (601) is in threaded connection with a fourth screw cap (602), a fifth screw cap (603) is fixedly sleeved at the other end of the threaded cylinder (6), and the fourth screw cap (602) is locked on one side of the fifth screw cap (603).
CN202320925867.2U 2023-04-23 2023-04-23 Expansion joint flange fixing device Active CN219809599U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320925867.2U CN219809599U (en) 2023-04-23 2023-04-23 Expansion joint flange fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320925867.2U CN219809599U (en) 2023-04-23 2023-04-23 Expansion joint flange fixing device

Publications (1)

Publication Number Publication Date
CN219809599U true CN219809599U (en) 2023-10-10

Family

ID=88212438

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320925867.2U Active CN219809599U (en) 2023-04-23 2023-04-23 Expansion joint flange fixing device

Country Status (1)

Country Link
CN (1) CN219809599U (en)

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