High-temperature fan outlet pipeline connecting structure

Abstract

The utility model discloses a high-temperature fan outlet pipeline connecting structure, which relates to the field of pipeline connection, and comprises a compensation element, two ends of the compensation element are respectively connected with a first pipeline and a second pipeline, and the outer walls of the inward sides of the first pipeline and the second pipeline are respectively sleeved with a first fixing ring; the outer wall of the compensation element is symmetrically sleeved with second fixing rings matched with the first fixing rings, and the outer walls of the first fixing rings and the outer walls of the second fixing rings are locked through locking rings. U-shaped plates are symmetrically arranged at the inward ends of the two sets of second fixing rings, movable rods are movably arranged in the U-shaped plates, and the two sets of movable rods in the axial direction are movably connected through connecting rods. Sealing rings are arranged in the first fixing ring and the second fixing ring in a matched mode. The utility model has a reasonable and reliable structure, and can effectively absorb the displacement, vibration and noise generated when the pipeline system expands with heat and contracts with cold due to temperature change by arranging the compensating element.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection, concretely relates to a high temperature fan export pipeline connection structure. BACKGROUND

[0002] In the process of using the high temperature fan, the sealing of the high temperature fan export pipeline connection adopts soft materials such as fireproof asbestos cloth, stainless steel wire mesh and fireproof adhesive tape. After the connection part deforms after long-term use of the high temperature fan, the connection sealing leaks air and ash seriously. Air leakage causes the system air volume to decrease, which causes difficulty in calcining the rotary kiln. In order to ensure the normal calcining of the rotary kiln, the load of the high temperature fan is large, the rotation speed of the high temperature fan is greatly improved, the fan impeller is easily worn, and the vibration of the fan on site is obviously intensified. Ash leakage not only pollutes the environment on site, but also brings great difficulty to the maintenance of the fan for the on-site inspection personnel.

[0003] With the continuous development of industrial technology, the high temperature fan export pipeline connection structure has been continuously optimized. For example, by improving the welding process, using high-performance sealing materials and designing more reasonable connection components, the performance of the connection structure is further improved, so that it can better adapt to the working environment of the high temperature fan and meet the needs of industrial production. The traditional air pipe and fan air outlet are connected by screwing, however, after long-term use, this connection method may cause the air pipe and air outlet to fall off, and due to its poor sealing performance, it is easy to cause gas leakage, thereby affecting the normal operation and use effect of the fan.

[0004] To solve the problem of the traditional connection method, some new connection structures are introduced into the high temperature fan export pipeline. For example, the use of expansion joints can effectively absorb the displacement of the pipeline due to thermal expansion and contraction, reduce stress concentration, and improve the stability and reliability of the system. In addition, although the development of welding technology makes the pipeline connection more firm, improves the load capacity and high temperature resistance of the weld, but it also brings great difficulty to the cleaning work of the staff later.

[0005] In view of the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENT

[0006] In view of the problems in the related art, the utility model provides a high temperature fan export pipeline connection structure to overcome the above technical problems existing in the prior art.

[0007] Therefore, the utility model adopts the specific technical scheme as follows:

[0008] The utility model provides a high temperature fan export pipeline connecting structure, including compensation element, compensation element both ends are connected with first pipeline and second pipeline respectively, and the one side outer wall of first pipeline and second pipeline towards inside all sets up with first fixed ring, the outer wall of compensation element is symmetrically set up with the second fixed ring matched with first fixed ring, and the outer wall of first fixed ring and second fixed ring is locked through locking ring, and the one end towards inside of two groups of second fixed ring all is symmetrically set up with U type board, and the inside of U type board movably is provided with movable rod, and the movable rod of two groups along the axial direction all is connected through connecting rod, and the inside of first fixed ring and second fixed ring is matched with and is provided with sealing ring.

[0009] Further, in order to effectively absorb vibration and impact, reduce the adverse effects on the pipeline system, and ensure stable operation of the system, the structure of the compensation element is a double-pole expansion joint structure, and an inner lining pipe is sleeved in the compensation element, and the side close to the first pipeline of the inner lining pipe is connected with the compensation element by welding.

[0010] Further, in order to enhance the stability and sealing of the connection, effectively improve the ability to resist external environmental influences, and ensure long-term stable use effect, the outer wall of the first fixed ring and the second fixed ring is provided with a triangular groove, and the first fixed ring and the second fixed ring are matched together to form a trapezoidal slope structure; the inside of the first fixed ring and the second fixed ring is provided with an annular limiting groove matched with the sealing ring.

[0011] Further, in order to adapt to certain thermal expansion and contraction, as well as the slight displacement of the pipeline, and ensure the reliability and stability of the connection, the locking ring includes pipe components symmetrically arranged on the outer walls of the first fixed ring and the second fixed ring, the pipe components are semicircular in shape, and the mounting blocks symmetrically arranged at one end of the two groups of pipe components are connected by bolts; the inside of the pipe components is provided with an annular trapezoidal groove matched with the first fixed ring and the second fixed ring, and the trapezoidal inclination of the annular trapezoidal groove is smaller than the trapezoidal inclination of the first fixed ring and the second fixed ring matched together, which is used for the clamping force of the locking ring.

[0012] Further, in order to enhance the stability of the connection between the two, the middle part of the U-shaped plate and the movable rod is connected by a bolt.

[0013] Further, in order to make the connecting rod movable in the movable rod nut, and limit the compensation element, the two sides of the connecting rod are sleeved on the bolts provided on the movable rod, and the top of the bolt is sleeved with a nut; the diameter of the connecting rod bolt hole is larger than the diameter of the movable rod bolt, which is used for the connecting rod movable in the bolt.

[0014] Further, in order to improve the durability and reliability of the sealing ring, enhance the stability and safety of the entire connection system, and ensure efficient operation under various working conditions, the sealing ring comprises a rubber ring body arranged in the annular limiting groove, and a plurality of linearly arranged rectangular fold line frames are arranged in the rubber ring body to support the sealing ring.

[0015] The utility model discloses the beneficial effects are:

[0016] 1. The utility model discloses reasonable and reliable structure, simple operation, through setting up compensation element, can effectively absorb the displacement, vibration and noise produced by the thermal expansion and cold shrinkage of pipeline system due to temperature change, and under the limiting of movable rod and connecting rod, prevent the rupture or deformation of pipeline due to excessive expansion or shrinkage. In order to further ensure the sealing and stability of pipeline connection, the sealing ring and locking ring are combined to lock. Not only guarantee the high sealing property of connecting part, but also enhance the stability of connecting point, effectively prevent the occurrence of leakage, not only improve the overall safety and reliability of pipeline system, provide powerful guarantee for long-term stable operation of industrial pipeline system.

[0017] 2. The utility model discloses through setting up compensation element, when pipeline system due to temperature change thermal expansion and cold shrinkage, compensation element is under the action of movable rod and connecting rod, can effectively absorb the displacement, vibration and noise produced by this, not only reduce the influence to pipeline system and other associated equipment, but also prevent the rupture or deformation of pipeline due to excessive expansion or shrinkage, significantly improve the durability and reliability of whole pipeline system.

[0018] 3. The utility model discloses through setting up locking ring, when needing to connect pipeline, first tightly adhere first fixed ring and second fixed ring at the joint of two groups of symmetrical pipe parts, then use bolt to connect. Due to the design of annular trapezoidal groove and first fixed ring and second fixed ring tightly clamped, the locking degree of bolt is adjusted to ensure that first fixed ring and second fixed ring are tightly pressed together. Not only can guarantee the high sealing property and stability of pipeline connecting part, but also have good interface adaptability, convenient to disassemble and reinstall.

[0019] 4、The utility model discloses a sealing ring is arranged, when the first fixed ring and the second fixed ring are locked through the locking ring, the sealing ring placed therebetween can effectively increase the friction coefficient of both, and the rectangular broken line frame of inside setting provides the supporting action, and allows the diastolic nature of certain degree simultaneously. The cavity can store a part of deformation energy when being subjected to external pressure, and releases this part of energy when the pressure changes, and helps the sealing ring to restore the shape. Not only the close contact between the first fixed ring and the second fixed ring is strengthened, but also the stable sealing performance under different working environments can be maintained, thereby the sealing property and reliability of the whole connecting part are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without the creative labor for those skilled in the art.

[0021] Figure 1 It is a structure schematic view of a high-temperature fan outlet pipeline connecting structure according to an embodiment of the utility model;

[0022] Figure 2 It is Figure 1 the partial enlarged view of

[0023] Figure 3 It is one of the partial sectional views of a high-temperature fan outlet pipeline connecting structure according to an embodiment of the utility model;

[0024] Figure 4 It is the second partial sectional view of a high-temperature fan outlet pipeline connecting structure according to an embodiment of the utility model;

[0025] Figure 5 It is the sectional view of the sealing ring in a high-temperature fan outlet pipeline connecting structure according to an embodiment of the utility model.

[0026] In the drawing:

[0027] 1, compensating element;101, inner liner pipe;2, first pipeline;3, second pipeline;4, first fixed ring;5, second fixed ring;6, U-shaped plate;7, movable rod;8, connecting rod;9, locking ring;901, pipe part;902, mounting block;903, annular trapezoidal groove;10, sealing ring;1001, rubber ring body;1002, rectangular broken line frame;1003, cavity;11, triangular groove;12, annular limiting groove. DETAILED DESCRIPTION

[0028] To further illustrate the embodiments, the utility model provides has the drawing, these drawings are part of the utility model disclosure content, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to the embodiment of the utility model, a high-temperature fan outlet pipeline connecting structure is provided.

[0030] The utility model is further illustrated in combination with the drawings and specific embodiments, as Figures 1-5 The high-temperature fan outlet pipeline connecting structure according to the embodiment of the utility model includes a compensation element 1, the first pipeline 2 and the second pipeline 3 are connected to the two ends of the compensation element 1 respectively, and the inner side outer wall of the first pipeline 2 and the second pipeline 3 is sleeved with a first fixing ring 4; the outer wall of the compensation element 1 is symmetrically sleeved with a second fixing ring 5 matched with the first fixing ring 4, and the outer wall of the first fixing ring 4 and the second fixing ring 5 is locked by a locking ring 9; the inner end of the two groups of second fixing rings 5 is symmetrically provided with a U-shaped plate 6, the U-shaped plate 6 is movably provided with a movable rod 7, and the two groups of movable rods 7 along the axial direction are movably connected by a connecting rod 8; the inner part of the first fixing ring 4 and the second fixing ring 5 is matched with a sealing ring 10.

[0031] By means of the above technical scheme, by setting the compensation element 1, the displacement, vibration and noise generated by the thermal expansion and contraction of the pipeline system due to temperature change can be effectively absorbed, and the rupture or deformation of the pipeline due to excessive expansion or contraction can be prevented under the limiting of the movable rod 7 and the connecting rod 8. To further ensure the sealing and stability of the pipeline connection, the sealing ring 10 and the locking ring 9 are combined to lock. Not only the high sealing property of the connection part is ensured, but also the stability of the connection point is enhanced, the occurrence of leakage is effectively prevented, the overall safety and reliability of the pipeline system are improved, and a powerful guarantee is provided for the long-term stable operation of the industrial pipeline system.

[0032] In one embodiment, for the above-mentioned compensation element 1, the structure of the compensation element 1 is a bipolar expansion joint structure, and an inner lining pipe 101 is sleeved in the compensation element 1, and the side of the inner lining pipe 101 close to the first pipeline 2 is connected with the compensation element 1 by welding, which can effectively absorb vibration and impact and reduce the adverse effects on the pipeline system, ensuring the stable operation of the system.

[0033] The specific working principle of the compensation element 1 is as follows: when the first pipeline 2 expands or contracts due to temperature changes or the like, the movement is limited under the action of the movable rod 7 and the connecting rod 8, the bipolar expansion joint structure of the compensation element 1 can expand and contract in the axial direction, the transverse direction and the angular direction, and can absorb displacement. Since the inner lining pipe 101 is welded to one end of the compensation element 1 near the first pipeline 2, the inner lining pipe 101 guides the flow of the medium and protects the expansion joint bellows from being washed and corroded by the medium, thereby ensuring stable operation of the compensation element 1.

[0034] In one embodiment, for the above-mentioned first fixed ring 4 and second fixed ring 5, triangular grooves 11 are formed in the outer walls of the first fixed ring 4 and the second fixed ring 5, and the first fixed ring 4 and the second fixed ring 5 are attached together to form a trapezoidal slope structure. The first fixed ring 4 and the second fixed ring 5 are internally provided with annular limiting grooves 12 that cooperate with the sealing ring 10, which not only enhances the stability and sealing performance of the connection, but also effectively improves the ability to resist external environmental influences, thereby ensuring long-term stable use.

[0035] In one embodiment, for the above-mentioned locking ring 9, the locking ring 9 includes pipe components 901 symmetrically arranged on the outer walls of the first fixed ring 4 and the second fixed ring 5. The pipe components 901 are semicircular in shape, and two groups of pipe components 901 are symmetrically provided with mounting blocks 902 at one end and are connected by bolts. The pipe components 901 are internally provided with annular trapezoidal grooves 903 that cooperate with the first fixed ring 4 and the second fixed ring 5. The trapezoidal inclination of the annular trapezoidal grooves 903 is smaller than the trapezoidal inclination of the first fixed ring 4 and the second fixed ring 5 attached together, which is used for the clamping force of the locking ring 9. It can adapt to a certain thermal expansion and contraction, as well as the slight displacement of the pipeline, thereby ensuring the reliability and stability of the connection.

[0036] The specific working principle of the locking ring 9 is as follows: when the pipeline needs to be connected, the first fixed ring 4 and the second fixed ring 5 are first installed on the pipeline or equipment components to be connected, respectively. Then, the bolts symmetrically arranged on the mounting blocks 902 are used for fixation. As the bolts are gradually tightened, the two groups of pipe components 901 will tightly clamp the outer walls of the first fixed ring 4 and the second fixed ring 5. The annular trapezoidal grooves 903 internally provided in the pipe components 901 cooperate with the outer walls of the first fixed ring 4 and the second fixed ring 5. Since the trapezoidal slope inclination angle of the annular trapezoidal grooves 903 is smaller than the trapezoidal slope inclination angle of the first fixed ring 4 and the second fixed ring 5 combined to form a trapezoidal slope, this enhances the clamping force of the locking ring 9 on the outer walls of the first fixed ring 4 and the second fixed ring 5. Therefore, when the bolts are further tightened, the two groups of pipe components 901 can more firmly clamp the outer walls of the first fixed ring 4 and the second fixed ring 5. In addition, the semicircular pipe components 901 design adopted by the locking ring 9 helps to uniformly disperse stress.

[0037] In one embodiment, for the U-shaped plate 6 described above, the U-shaped plate 6 and the middle part of the movable rod 7 are connected by bolts, thereby enhancing the stability of the connection between the two.

[0038] In one embodiment, for the connecting rod 8 described above, the two sides of the connecting rod 8 are sleeved on the bolts provided on the movable rod 7, and nuts are sleeved on the top of the bolts; the diameter of the bolt hole of the connecting rod 8 is larger than the diameter of the bolt of the movable rod 7, so that the connecting rod 8 can move inside the bolt, and the connecting rod 8 can move inside the nut of the movable rod 7, thereby limiting the compensation element 1.

[0039] In one embodiment, for the sealing ring 10 described above, the sealing ring 10 includes a rubber ring body 1001 arranged inside the annular limiting groove 12, and a plurality of linearly arranged rectangular fold line frames 1002 are arranged inside the rubber ring body 1001, which are used to support the sealing ring 10. A cavity 1003 is arranged inside the rubber ring body 1001 and cooperates with the rectangular fold line frame 1002. This not only improves the durability and reliability of the sealing ring 10, but also enhances the stability and safety of the entire connection system, ensuring efficient operation under various working conditions.

[0040] The specific working principle of the sealing ring 10 is as follows: when gas enters through the first pipeline 2, the rubber ring body 1001 is arranged inside the annular limiting groove 12, and the rectangular fold line frame 1002 inside it can effectively provide support and allow a certain degree of relaxation. In addition, the design of the cavity 1003 allows it to store a portion of the deformation energy when subjected to external pressure, and release this energy when the pressure changes, helping the sealing ring 10 to recover its shape. Under the action of fluid pressure or external mechanical force, the sealing ring 10 will bear stress. However, the combined structure of the rubber ring body 1001 and the rectangular fold line frame 1002 can effectively disperse these stresses, avoiding damage to the sealing ring 10 due to stress concentration. In addition, the shape of the rectangular fold line frame 1002 and the arrangement of the cavity 1003 allow it to have a certain buffering effect, which can relieve sudden impact forces and protect the sealing ring 10 and other components at the connection.

[0041] It should be noted that, in specific applications, the compensation element 1, the first pipeline 2, the second pipeline 3, the first fixed ring 4, the second fixed ring 5 and the sealing ring 10 all use high-temperature-resistant alloy or ceramic matrix composite materials, which are prior art and will not be described in detail here.

[0042] In order to facilitate the understanding of the above technical solutions of the present application, the working principle or operation method of the present application in the actual process will be described in detail below.

[0043] As Figures 1-5As shown, in actual application, when the pipe needs to be connected, first, the sealing ring 10 is placed in the annular limiting groove 12 (the working principle of the sealing ring 10 is as shown above), the first fixed ring 4 and the second fixed ring 5 are attached, the outer wall of the first fixed ring 4 and the second fixed ring 5 is locked by the locking ring 9 (the working principle of the locking ring 9 is as shown above), the movable rod 7 and the connecting rod 8 are installed between the second fixed ring 5 to limit the compensation element 1 (the working principle of the compensation element 1 is as shown above), the second pipe 3 is connected, and vice versa. After installation, the gas discharged by the high-temperature fan is discharged from the first pipe 2 and finally discharged through the second pipe 3.

[0044] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction between two elements, unless otherwise clearly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0045] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high temperature fan outlet duct connection structure, characterized by, The compensation element (1) is connected with the first pipeline (2) and the second pipeline (3) at both ends, and the inner wall of the first pipeline (2) and the second pipeline (3) is sleeved with the first fixed ring (4). The outer wall of the compensation element (1) is symmetrically sleeved with the second fixed ring (5) matched with the first fixed ring (4), and the outer wall of the first fixed ring (4) and the second fixed ring (5) is locked by the locking ring (9). The inner end of the two groups of second fixed rings (5) is symmetrically provided with a U-shaped plate (6), and the inner part of the U-shaped plate (6) is movably provided with a movable rod (7). The inner part of the first fixed ring (4) and the second fixed ring (5) is matched with a sealing ring (10).

2. A high temperature fan outlet duct connection structure according to claim 1, wherein The structure of the compensation element (1) is a double expansion joint structure, and the compensation element (1) is sleeved with an inner lining pipe (101) inside.

3. A high temperature fan outlet duct connection structure according to claim 1, wherein The outer wall of the first fixed ring (4) and the second fixed ring (5) is provided with a triangular groove (11), and the first fixed ring (4) and the second fixed ring (5) are matched together to form a trapezoidal slope structure. The inner part of the first fixed ring (4) and the second fixed ring (5) is provided with an annular limiting groove (12) matched with the sealing ring (10).

4. A high temperature fan outlet duct connection structure according to claim 1, wherein The locking ring (9) includes a pipe component (901) symmetrically arranged on the outer wall of the first fixed ring (4) and the second fixed ring (5), the pipe component (901) is semicircular, and the mounting block (902) symmetrically arranged at one end of the two groups of pipe components (901) is connected by bolts. The inner part of the pipe component (901) is provided with an annular trapezoidal groove (903) matched with the first fixed ring (4) and the second fixed ring (5).

5. A high temperature fan outlet duct connection structure according to claim 4, wherein The trapezoidal inclination of the annular trapezoidal groove (903) is smaller than that of the first fixed ring (4) and the second fixed ring (5) matched together, which is used for the clamping force of the locking ring (9).

6. A high temperature fan outlet duct connection structure according to claim 1, wherein The middle part of the U-shaped plate (6) and the movable rod (7) is connected by bolts.

7. A high temperature fan outlet duct connection structure according to claim 1, wherein The two sides of the connecting rod (8) are sleeved on the bolts arranged on the movable rod (7), and the top of the bolt is sleeved with a nut. The diameter of the bolt hole of the connecting rod (8) is larger than the diameter of the bolt of the movable rod (7), so that the connecting rod (8) can move in the bolt.

8. A high temperature fan outlet duct connection structure according to claim 3, wherein The sealing ring (10) includes a rubber ring body (1001) arranged in the annular limiting groove (12), and a plurality of linearly arranged rectangular fold line frames (1002) are arranged in the inner part of the rubber ring body (1001) for supporting the sealing ring (10). The inner part of the rubber ring body (1001) is provided with a cavity (1003) matched with the rectangular fold line frame (1002).

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