Novel pneumatic conveying four-way pipe

Abstract

The utility model relates to the technical field of pneumatic conveying pipelines, in particular to a novel pneumatic conveying four-way pipe which comprises a four-way pipe and a connecting pipe, the four-way pipe comprises a spherical pipe and a conveying pipe, tungsten alloy layers are sprayed on the inner wall of the spherical pipe and the inner wall of the conveying pipe, a connecting hole is formed in the spherical pipe, and the connecting hole is communicated with the connecting pipe. The connecting holes are located in the four directions of the spherical pipe, one end of the conveying pipe is seamlessly welded in the connecting holes, the other end of the conveying pipe is connected with a first flange, the connecting pipe is connected with a second flange, and the first flange and the second flange are connected through a bolt. A damping sealing assembly is arranged between the first flange and the second flange, and a wrapping assembly is further arranged outside the first flange and the second flange. The four-way pipe has the advantages that the problem that gaps are likely to be generated between the four-way pipe and the pipeline due to impact force of powder is solved, and the abrasion resistance of the four-way pipe is improved so that the service life of the four-way pipe can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic conveying pipeline technology, and in particular to a novel pneumatic conveying four-way pipe. Background Technology

[0002] A four-way pipe is a fitting or connector for pipes and pipelines. It is mainly used to connect pipe joints, enabling pipes to communicate with each other and facilitating the distribution and transportation of media. Its end has a flange that connects to the pipe, and the flanges are connected by bolts.

[0003] When conveying coal ash powder or granular dust, the powder rubs against the inner wall of the four-way pipe at a high flow rate, which can easily damage the inner wall and affect its service life. Furthermore, the powder impacts the center of the four-way pipe when turning, causing it to vibrate. Since the flanges of the four-way pipe and the pipe are mostly directly connected by bolts in the current technology, long-term vibration can cause the two flanges to loosen and create gaps, reducing the sealing performance between the four-way pipe and the pipe. Utility Model Content

[0004] In order to improve the problem of gaps easily generated between the four-way pipe and the pipeline due to the impact force of powder, and to improve the wear resistance of the four-way pipe to ensure its service life, this application provides a new type of pneumatic conveying four-way pipe.

[0005] The novel pneumatic conveying four-way pipe provided in this application adopts the following technical solution:

[0006] A novel pneumatic conveying four-way pipe includes a four-way pipe and a connecting pipe. The four-way pipe includes a spherical pipe and a conveying pipe. The inner walls of the spherical pipe and the conveying pipe are both coated with a tungsten alloy layer. The spherical pipe has connecting holes located in four directions. One end of the conveying pipe is seamlessly welded into the connecting hole. The other end of the conveying pipe is connected to a first flange. A second flange is connected to the connecting pipe. The first flange and the second flange are connected by bolts. A shock-absorbing and sealing assembly is provided between the first flange and the second flange. A wrapping assembly is also provided on the outside of the first flange and the second flange.

[0007] Preferably, the vibration damping and sealing assembly includes a first plug ring, a second plug ring, a sealing ring, and a vibration damping washer. The first plug ring is connected to a first flange and is coaxially arranged with the first flange. The second plug ring is connected to a second flange and is coaxially arranged with the second flange. The sealing ring is sleeved outside the first plug ring, and the vibration damping washer is sleeved outside the sealing ring. The first plug ring, the second plug ring, the sealing ring, and the vibration damping washer are of equal length. A first slot is provided on the first flange for inserting the second plug ring, the sealing ring, and the vibration damping washer. A second slot is provided on the second flange for inserting the first plug ring, the sealing ring, and the vibration damping washer.

[0008] Preferably, the wrapping assembly includes a first hoop, a second hoop, a first connecting block, a second connecting block, a threaded rod, a locking nut, and a spring washer. Both the first and second hoops are semi-circular rings with U-shaped cross-sections. When assembled, the first and second hoops can wrap around the outside of the first and second flanges. The first connecting block is connected to the first hoop, with one block at each end of the first hoop. The second connecting block is connected to the second hoop, with one block at each end of the second hoop. One end of the threaded rod is connected to the first connecting block via a pin. The first connecting block has a first slot for the threaded rod to rotate, and the second connecting block has a second slot for the threaded rod to rotate into. The spring washer is fitted onto the threaded rod, and the locking nut is connected to the threaded rod.

[0009] Preferably, a limiting block is fitted onto the threaded rod, and a limiting groove is provided on the second connecting block for the limiting block to engage.

[0010] Preferably, both the first and second hoop rings are made of stainless steel.

[0011] Preferably, the thickness of the tungsten alloy layer is 4-6 mm.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] This utility model provides a novel pneumatic conveying four-way pipe, including a four-way pipe, a connecting pipe, a first flange, a second flange, a shock-absorbing sealing assembly, and a wrapping assembly. By spraying tungsten alloy into the spherical tube and conveying pipe of the four-way pipe, the hardness, high temperature resistance, and wear resistance of the inner wall of the four-way pipe are improved, which helps to ensure the service life of the four-way pipe. The shock-absorbing sealing assembly set between the first flange and the second flange improves the sealing performance between the first flange and the second flange and reduces the vibration generated during powder conveying. The wrapping assembly set on the outside of the first flange and the second flange further improves the overall sealing performance. Thus, it achieves the effect of improving the problem of gaps easily generated between the four-way pipe and the pipeline due to the impact force of powder, and improving the wear resistance of the four-way pipe to ensure its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the novel pneumatic conveying four-way pipe in the embodiments of this application;

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram illustrating the second plug ring in an embodiment of this application;

[0017] Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Four-way pipe; 11. Ball-shaped pipe; 12. Conveying pipe; 2. Connecting pipe; 3. First flange; 4. Second flange; 5. Shock-absorbing sealing assembly; 51. First insertion ring; 52. Second insertion ring; 53. Sealing ring; 54. Shock-absorbing washer; 6. Wrapping assembly; 61. First hoop ring; 62. Second hoop ring; 63. First connecting block; 64. Second connecting block; 65. Threaded rod; 651. Limiting block; 66. Locking nut; 67. Spring washer. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] This application discloses a novel pneumatic conveying four-way pipe. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 The novel pneumatic conveying four-way pipe includes a four-way pipe 1 and a connecting pipe 2. The four-way pipe 1 includes a spherical pipe 11 and a conveying pipe 12. The inner walls of the spherical pipe 11 and the inner walls of the conveying pipe 12 are coated with a tungsten alloy layer with a thickness of 4-6 mm. By coating the inside of the spherical pipe 11 and the conveying pipe 12 with a tungsten alloy layer, the hardness, wear resistance and high temperature resistance of the inner wall of the four-way pipe 1 are improved, the wear on the inner wall of the four-way pipe 1 during powder conveying is reduced, and the service life of the four-way pipe 1 is guaranteed. The spherical pipe 11 has connecting holes located in four directions. One end of the conveying pipe 12 is seamlessly welded into the connecting hole. The other end of the conveying pipe 12 is connected to a first flange 3. The connecting pipe 2 is connected to a second flange 4. The first flange 3 and the second flange 4 are connected by bolts. A shock-absorbing sealing assembly 5 is provided between the first flange 3 and the second flange 4. A wrapping assembly 6 is also provided on the outside of the first flange 3 and the second flange 4.

[0022] By setting a shock-absorbing sealing assembly 5 between the first flange 3 and the second flange 4, the sealing performance between the first flange 3 and the second flange 4 is improved, while the vibration generated during powder conveying is reduced. By setting a wrapping assembly 6 on the outside of the first flange 3 and the second flange 4, the overall sealing performance can be further improved.

[0023] The vibration damping and sealing assembly 5 includes a first insertion ring 51, a second insertion ring 52, a sealing ring 53, and a vibration damping washer 54. The first insertion ring 51 is connected to the first flange 3 and is coaxially arranged with the first flange 3. The second insertion ring 52 is connected to the second flange 4 and is coaxially arranged with the second flange 4. The sealing ring 53 is sleeved on the outside of the first insertion ring 51, and the vibration damping washer 54 is sleeved on the outside of the sealing ring 53. The first insertion ring 51, the second insertion ring 52, the sealing ring 53, and the vibration damping washer 54 are of equal length. The first flange 3 has a first slot for inserting the second insertion ring 52, the sealing ring 53, and the vibration damping washer 54. The second flange 4 has a second slot for inserting the first insertion ring 51, the sealing ring 53, and the vibration damping washer 54.

[0024] When connecting the first flange 3 and the second flange 4, the first insertion ring 51 and the second insertion ring 52 are respectively inserted into the second slot and the first insertion groove, and the sealing ring 53 and the shock-absorbing washer 54 are disposed between the first insertion ring 51 and the second insertion ring 52. When the four-way pipe 1 vibrates due to the conveying of powder, the sealing ring 53 can maintain the sealing between the first flange 3 and the second flange 4, and the shock-absorbing washer 54 can absorb the vibration.

[0025] The wrapping assembly 6 includes a first hoop 61, a second hoop 62, a first connecting block 63, a second connecting block 64, a threaded rod 65, a locking nut 66, and a spring washer 67. Both the first hoop 61 and the second hoop 62 are semi-circular rings with U-shaped cross-sections. When assembled, the first hoop 61 and the second hoop 62 can wrap around the outside of the first flange 3 and the second flange 4. The first connecting block 63 is connected to the first hoop 61. The first connecting block 63... A first hoop 61 has one end at each end, a second connecting block 64 is connected to the second hoop 62, and a second connecting block 64 is one end at each end of the second hoop 62. One end of the threaded rod 65 is connected to the first connecting block 63 by a pin. The first connecting block 63 has a first slot for the threaded rod 65 to rotate, and the second connecting block 64 has a second slot for the threaded rod 65 to rotate into. A spring washer 67 is sleeved on the threaded rod 65, and a locking nut 66 is connected to the threaded rod 65.

[0026] A limiting block 651 is fitted on the threaded rod 65. The limiting block 651 has a through hole for the threaded rod 65 to pass through. The second connecting block 64 has a limiting groove for the limiting block 651 to be engaged. By setting the limiting block 651, the threaded rod 65 is prevented from rotating during connection, which is beneficial for the operator to install the first hoop 61 and the second hoop 62.

[0027] When installing the first hoop 61 and the second hoop 62, firstly, the first hoop 61 and the second hoop 62 are locked together and wrapped around the outside of the first flange 3 and the second flange 4. Then, the threaded rod 65 is rotated upward and the limiting block 651 is lowered and locked into the limiting groove. Finally, the first hoop 61 and the second hoop 62 are locked by rotating the locking nut 66.

[0028] Both the first hoop 61 and the second hoop 62 are made of stainless steel, which improves the service life of the first hoop 61 and the second hoop 62.

[0029] The implementation principle of a novel pneumatic conveying four-way pipe in this application embodiment is as follows: The hardness and wear resistance of the inner walls of the spherical pipe 11 and the conveying pipe 12 are improved by spraying a tungsten alloy layer. When installing the four-way pipe 1 and the connecting pipe 2, the first flange 3 and the second flange 4 are mated together, so that the first insertion ring 51 and the second insertion ring 52 are respectively inserted into the second slot and the first insertion groove. A sealing ring 53 and a shock-absorbing washer 54 are disposed between the first insertion ring 51 and the second insertion ring 52. The sealing ring 53 between the first insertion ring 51 and the second insertion ring 52 ensures the first flange... To ensure a tight seal between flanges 3 and 4, the shock-absorbing washer 54 absorbs vibrations during powder conveying. Then, the first hoop ring 61 and the second hoop ring 62 are fitted together and wrapped around the outside of flanges 3 and 4. Next, the threaded rod 65 is rotated upwards to allow the limiting block 651 to fall and engage in the limiting groove. Finally, the first hoop ring 61 and the second hoop ring 62 are locked by rotating the locking nut 66. The first hoop ring 61 and the second hoop ring 62 limit the lateral displacement of flanges 3 and 4, thus improving the impact of vibration on flanges 3 and 4.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A novel pneumatic conveying four-way pipe, comprising a four-way pipe (1) and a connecting pipe (2), characterized in that: The four-way pipe (1) includes a spherical pipe (11) and a conveying pipe (12). The inner wall of the spherical pipe (11) and the inner wall of the conveying pipe (12) are coated with a tungsten alloy layer. The spherical pipe (11) has a connection hole located in four directions. One end of the conveying pipe (12) is seamlessly welded into the connection hole. The other end of the conveying pipe (12) is connected to a first flange (3). The connecting pipe (2) is connected to a second flange (4). The first flange (3) and the second flange (4) are connected by bolts. A shock-absorbing sealing assembly (5) is provided between the first flange (3) and the second flange (4). A wrapping assembly (6) is also provided on the outside of the first flange (3) and the second flange (4).

2. The novel pneumatic conveying four-way pipe according to claim 1, characterized in that: The shock-absorbing sealing assembly (5) includes a first insertion ring (51), a second insertion ring (52), a sealing ring (53), and a shock-absorbing washer (54). The first insertion ring (51) is connected to the first flange (3) and is coaxially arranged with the first flange (3). The second insertion ring (52) is connected to the second flange (4) and is coaxially arranged with the second flange (4). The sealing ring (53) is sleeved on the first insertion ring (51). Externally, the shock-absorbing washer (54) is sleeved on the outside of the sealing ring (53). The first insertion ring (51), the second insertion ring (52), the sealing ring (53) and the shock-absorbing washer (54) are of equal length. The first flange (3) has a first slot for inserting the second insertion ring (52), the sealing ring (53) and the shock-absorbing washer (54). The second flange (4) has a second slot for inserting the first insertion ring (51), the sealing ring (53) and the shock-absorbing washer (54).

3. The novel pneumatic conveying four-way pipe according to claim 1, characterized in that: The wrapping assembly (6) includes a first hoop (61), a second hoop (62), a first connecting block (63), a second connecting block (64), a threaded rod (65), a locking nut (66), and a spring washer (67). Both the first hoop (61) and the second hoop (62) are semi-circular rings with U-shaped cross-sections. The first hoop (61) and the second hoop (62) can be wrapped around the outside of the first flange (3) and the second flange (4) after assembly. The first connecting block (63) is connected to the first hoop (61). The first hoop (61) has one at each end, the second connecting block (64) is connected to the second hoop (62), the second connecting block (64) is one at each end of the second hoop (62), one end of the threaded rod (65) is connected to the first connecting block (63) by a pin, the first connecting block (63) has a first slot for the threaded rod (65) to rotate, the second connecting block (64) has a second slot for the threaded rod (65) to rotate into, the spring washer (67) is sleeved on the threaded rod (65), and the locking nut (66) is connected to the threaded rod (65).

4. A novel pneumatic conveying four-way pipe according to claim 3, characterized in that: A limiting block (651) is fitted on the threaded rod (65), and a limiting groove is provided on the second connecting block (64) for the limiting block (651) to be inserted.

5. A novel pneumatic conveying four-way pipe according to claim 3, characterized in that: Both the first hoop (61) and the second hoop (62) are made of stainless steel.

6. A novel pneumatic conveying four-way pipe according to claim 1, characterized in that: The thickness of the tungsten alloy layer is 4-6 mm.

Images