Pneumatic ash conveying pipeline
By designing a variety of connection structures in the pneumatic ash transfer pipeline, the problem of insufficient operating space when connecting the inner pipe and the outer pipe is solved, and a high sealing and stable connection is achieved, which improves the operating efficiency of the pneumatic ash transfer system.
Patent Information
- Application Number
- CN202421223647.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When connecting the inner pipe and the outer pipe, the inner pipe flange part is located in the outer pipe, resulting in limited operating space and difficult to achieve high sealing and stable connection.
A pneumatic ash transfer pipe is designed, adopting a first connecting member and a second connecting member. Through the connecting ears and bolts, annular convex edges, abutment rings and other structures, the contact surface and operating space between the inner pipe and the outer pipe are increased. And improve sealing and stability through positioning members and housing.
It realizes convenient installation and disassembly of the inner and outer pipes, increases the operating space, improves the sealing and stability of the connection, and ensures the efficient operation of the pneumatic ash delivery system.
Smart Images
Figure CN222330967U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pipeline connection, and in particular to a pneumatic ash conveying pipeline. Background Art
[0002] The inner and outer sealed pipes of the pneumatic ash conveying pipeline are one of its core designs, ensuring the efficiency and safety of material transportation. The inner pipe is the material conveying channel in the pneumatic ash conveying pipeline. The high-speed airflow generated by the compressed air passes through the inner pipe to push the material particles from the starting point to the end point. The main function of the outer pipe is to protect the inner pipe and prevent the external environment from interfering with and damaging the inner pipe. It also plays the role of supporting and fixing the inner pipe to ensure the stability of the entire conveying system.
[0003] The connection between the inner tube and the outer tube is crucial. The inner tube and the outer tube can be connected by flanges. For occasions that require higher sealing and stability, welding connection can be used. For flange connection, just loosen the bolts, remove the old inner tube, install the new inner tube and tighten the bolts. For welding connection, you need to use professional welding tools and equipment to cut off the old inner tube and then weld the new inner tube.
[0004] With respect to the above-mentioned related technologies, when the inner pipe is connected by flange, since the flange portion of the inner pipe is located inside the outer pipe, the operating space for connecting the inner pipe is limited. Summary of the invention
[0005] In order to increase the operating space when installing the inner pipe, the present application provides a pneumatic ash conveying pipeline.
[0006] The present application provides a pneumatic ash conveying pipeline, which adopts the following technical solution:
[0007] A pneumatic ash conveying pipeline, comprising an outer tube and an inner tube, both ends of the inner tube are connected with a first connecting component, the first connecting component comprises a first connecting ring, a plurality of connecting ears distributed along the circumferential direction of the outer circumference of the first connecting ring, the connecting ears are penetrated by a first bolt, the first bolt is connected with a nut, and the first connecting ring is detachably mounted on the outer tube;
[0008] The outer tube is connected to a second connecting component, the second connecting component includes a second connecting ring, the second connecting tube is fixedly installed on the outer peripheral side of the outer tube, the outer diameter of the first connecting ring is larger than the outer diameter of the outer tube, and smaller than the outer diameter of the second connecting ring, the second connecting ring is penetrated by a second bolt, and the second bolt is threadedly connected with a nut, and when the two outer tubes are connected, the second connecting ring and the first connecting ring form a fitting relationship.
[0009] By adopting the above technical scheme, the pneumatic ash conveying pipeline is connected section by section, and the inner tube is first sleeved in the outer tube. When connecting, the inner tube is connected first, and then the outer tube. After the inner tube is sleeved into the outer tube, the first connecting component is installed on the two ends of the inner tube. The two inner tubes are first abutted against each other through the first connecting ring. The first connecting ring increases the contact surface of the two inner tubes. The first connecting ring also extends out of the outer tube. When the connecting ears of the two inner tubes are connected by the first bolt and nut, there is a larger operating space. After the inner tubes are connected, the second connecting ring can abut against the other end face of the first connecting ring. The second connecting rings of the two outer tubes are fixedly connected by the second bolt and nut. After the two second connecting rings are connected, when the inner tube can be sealed and the outer tube can also be sealed, the second connecting ring can also clamp and fix the first connecting ring.
[0010] Optionally, the first connecting ring is threadedly connected to the outer wall of the inner tube.
[0011] By adopting the above technical solution, it is convenient to install or remove the first connecting ring from the inner tube.
[0012] Optionally, the first connecting ring is coaxially connected with an annular flange, and the annular flange is threadedly connected to the inner tube.
[0013] By adopting the above technical solution, the annular flange and the inner tube are threadedly connected, thereby increasing the contact surface between the first connecting ring and the inner tube.
[0014] Optionally, an abutment ring is connected to the inner wall of the annular protrusion, and the end surface of the abutment ring away from the inner tube is flush with the end surface of the first connecting ring.
[0015] By adopting the above technical solution, when the annular protrusion is threadedly installed on the inner tube, the abutment ring can abut against the end face of the inner tube. The abutment ring can limit the axial movement of the first connecting ring, so that the installation position of the first connecting ring on the inner tube is determined.
[0016] Optionally, a positioning member is installed between the first connecting ring and the second connecting ring.
[0017] By adopting the above technical solution, a positioning piece is installed between the first connecting ring and the second connecting ring, so that after the second connecting ring abuts against the end face of the first connecting ring, the inner tube and the outer tube can be made coaxial through the positioning piece.
[0018] Optionally, an annular groove for embedding the outer tube is formed on one end surface of the first connecting ring.
[0019] By adopting the above technical solution, after the first connecting ring is installed on the inner tube, one end of the outer tube is inserted into the annular groove, and the cooperation between the outer tube and the annular groove can make the inner tube and the outer tube coaxial.
[0020] Optionally, the second bolt passes through the first connecting ring and the second connecting ring and is connected to the nut.
[0021] By adopting the above technical solution, the second bolt can not only fix the first connecting ring, but also fix the second connecting ring.
[0022] Optionally, the outer tube is detachably mounted with a cover shell, the cover shell is provided in two halves, and the first connecting ring and the second connecting ring are located inside the cover shell.
[0023] By adopting the above technical solution, the cover shell can further fix the first connecting ring and the second connecting ring, and can also enhance the sealing performance of the outer tube.
[0024] In summary, the present application includes at least one of the following beneficial effects:
[0025] 1. When the connecting ears of the two inner tubes are connected by the first bolt and nut, there is a large operating space;
[0026] 2. After the first connecting ring is installed on the inner tube, one end of the outer tube is inserted into the annular groove. The cooperation between the outer tube and the annular groove can make the inner tube and the outer tube coaxial. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a cross-sectional view of two sections of inner tubes and two sections of outer tubes connected in an embodiment of the present application;
[0028] Figure 2 This is an external schematic diagram of an embodiment of the present application in which two sections of inner tubes and two sections of outer tubes are connected;
[0029] Figure 3 is an exploded schematic diagram of a positioning rod and a positioning hole in an embodiment of the present application;
[0030] Figure 4 It is a schematic diagram of the cover shell of an embodiment of the present application being installed on the outer tube.
[0031] Explanation of the reference numerals: 1. outer tube; 2. inner tube; 3. first connecting component; 31. first connecting ring; 311. annular groove; 32. connecting ear; 33. first bolt; 34. nut; 35. annular flange; 36. abutment ring; 4. second connecting component; 41. second connecting ring; 42. second bolt; 5. positioning rod; 6. positioning hole; 7. cover; 71. mounting ear; 72. fastening bolt. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] The present application embodiment discloses a pneumatic ash conveying pipeline. Figure 1 and Figure 2A pneumatic ash conveying pipeline includes an outer tube 1 and an inner tube 2. Both ends of a section of the inner tube 2 are detachably mounted with a first connecting component 3. The first connecting component 3 includes a first connecting ring 31 and a plurality of connecting ears 32 distributed in the circumferential direction of the outer peripheral side of the first connecting ring 31. The first connecting ring 31 is coaxial with the inner tube 2, and the first connecting ring 31 is detachably mounted on the outer wall of the inner tube 2. A first bolt 33 is passed through the connecting ear 32, and a nut 34 is connected to the first bolt 33. The outer diameter of the first connecting ring 31 is greater than the outer diameter of the outer tube 1. When the two inner tubes 2 are connected, the end faces of the two first connecting rings 31 abut against each other. The first bolt 33 is threaded through the two connecting ears 32 and the nut 34 on the outside of the outer tube 1. After the plurality of connecting ears 32 are fixed by the first bolt 33 and the nut 34, the two first connecting rings 31 are fixedly connected, and the operating space when the inner tubes 2 are connected is increased.
[0034] A sealing ring may be installed between the first connecting rings 31 of the two inner tubes 2 to increase the sealing performance of the two inner tubes 2 when the two first connecting rings 31 are abutted and fixed against each other.
[0035] Reference Figure 1 and Figure 2 , the outer tube 1 is connected with a second connecting component 4, the second connecting component 4 includes a second connecting ring 41, and the second connecting ring 41 is coaxially fixedly installed on the outer peripheral side of the outer tube 1. The second connecting ring 41 is penetrated by a second bolt 42, and the second bolt 42 is threadedly connected with a nut 34. The outer diameter of the first connecting ring 31 is smaller than that of the second connecting ring 41. When the outer tube 1 is connected, the second connecting ring 41 abuts against the end surface of the first connecting ring 31. When the second bolt 42 passes through the two second connecting rings 41, the second bolt 42 passes through the gap between the two adjacent connecting ears 32, and the second bolt 42 may not be connected to the second connecting component 4. However, the two second connecting rings 41 can play a role in clamping and fixing the two first connecting rings 31, so that the inner tube 2 is better sealed and connected.
[0036] A sealing ring is embedded in the end surface where the second connecting ring 41 and the first connecting ring 31 abut against each other. When the two second connecting rings 41 are fixedly connected, the two outer tubes 1 are sealed and connected.
[0037] The second bolt 42 can also directly pass through the first connecting ring 31 and the second connecting ring 41 and then be connected to the nut 34 . The second bolt 42 can not only fix the first connecting ring 31 , but also fix the second connecting ring 41 .
[0038] Reference Figure 1 The first connecting ring 31 is threadedly connected to the outer wall of the inner tube 2. The first connecting ring 31 is coaxially connected with an annular flange 35. The inner circle of the annular flange 35 is distributed with threads, and the outer wall of the inner tube 2 is also distributed with threads. The annular flange 35 and the inner tube 2 are fixedly connected by threads.
[0039] Reference Figure 1The inner wall of the annular convex edge 35 is connected with an abutting ring 36, and the end surface of the abutting ring 36 away from the inner tube 2 is flush with the end surface of the first connecting ring 31. When the annular convex edge 35 is threadedly installed on the inner tube 2, the abutting ring 36 abuts on the end surface of the inner tube 2. When the two inner tubes 2 are connected, the two abutting rings 36 also abut against each other. A sealing ring can be installed on the end surface of the abutting ring 36 close to the inner tube 2. When the abutting ring 36 abuts on the inner tube 2, the first connecting ring 31 is fixed on the inner tube 2, and the first connecting ring 31 and the inner tube 2 are sealed and connected.
[0040] Reference Figure 1 One end surface of the first connecting ring 31 is provided with an annular groove 311 for the outer tube 1 to be embedded, and the annular groove 311 is coaxial with the first connecting ring 31. When the first connecting ring 31 is rotatably connected to the inner tube 2, the outer tube 1 gradually rotates into the annular groove 311, and the inner tube 2 and the outer tube 1 remain coaxial.
[0041] Reference Figure 3 A positioning member is installed between the first connecting ring 31 and the second connecting ring 41. The positioning member is a positioning rod 5. The two ends of the positioning rod 5 are bent 90 degrees. Positioning holes 6 are opened on the outer circumference of the first connecting ring 31 and the second connecting ring 41. The two ends of the positioning rod 5 are respectively inserted into the first connecting ring 31 and the second connecting ring 41. The first connecting ring 31 and the second connecting ring 41 no longer rotate relative to each other.
[0042] Reference Figure 3 and Figure 4 The outer tube 1 is detachably mounted with a cover shell 7, which is arranged in two halves. When the cover shell 7 is closed, there is space inside the cover shell 7. When the cover shell 7 is mounted on the outer tube 1, the first connecting component 3 and the second connecting component 4 are both located inside the cover shell 7. The cover shell 7 has an arc surface that fits with the wall of the outer tube 1, and a sealing strip is embedded on the arc surface. Mounting ears 71 are installed on both halves of the shell. When the two halves of the shell are covered on the outer tube 1, the sealing strip fits on the outer tube 1, and the mounting ears 71 are spliced with each other. Fastening bolts 72 and nuts 34 are inserted through the mounting ears 71 of the two shells, so that the cover shell 7 is fixedly mounted on the outer tube 1. The cover shell 7 can protect the first connecting component 3 and the second connecting component 4, and prevent the outside from interfering with and damaging the sealing of the outer tube 1 and the inner tube 2.
[0043] The implementation principle of a pneumatic ash conveying pipeline in the embodiment of the present application is:
[0044] When the pneumatic ash conveying pipeline is installed section by section, first process one section of the pipeline, insert the inner tube 2 into the outer tube 1, first connect the first connecting component 3 to the two ends of the inner tube 2, the first connecting ring 31 and the outer tube 1 are preliminarily connected, the first connecting ring 31 and the second connecting ring 41 are rotated and fitted, and then the inner tube 2 is rotated to make the positioning hole 6 of the first connecting ring 31 close to the positioning rod 5 of the second connecting ring 41, and the positioning rod 5 is inserted into the first connecting ring 31 and the second connecting ring 41. The first connecting ring 31 and the second connecting ring 41 no longer rotate. When connecting two sections of the pipeline, the first bolt 33 passes through the connecting ear 32 outside the outer tube 1 and is threadedly connected with the nut 34. After the multiple connecting ears 32 are fixedly connected by the first bolt 33 and the nut 34, the first connecting ring 31 abuts against each other, and the two inner tubes 2 are sealed and connected together; then the two second connecting rings 41 are fixedly connected together by the second bolt 42 and the nut 34, and the two outer tubes 1 are sealed and connected together. Finally, the cover 7 is installed on the outer tube 1, and the cover 7 protects the first connecting component 3 and the second connecting component 4.
[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pneumatic ash conveying pipeline, characterized in that: The invention comprises an outer tube (1) and an inner tube (2), wherein both ends of the inner tube (2) are connected to a first connecting component (3), the first connecting component (3) comprises a first connecting ring (31), a plurality of connecting ears (32) distributed in a circumferential direction along the outer circumference of the first connecting ring (31), a first bolt (33) passing through the connecting ear (32), the first bolt (33) being connected to a nut (34), and the first connecting ring (31) being detachably mounted on the outer tube (1); The outer tube (1) is connected to a second connecting component (4), the second connecting component (4) comprising a second connecting ring (41), the second connecting ring (41) being fixedly mounted on the outer peripheral side of the outer tube (1), the outer diameter of the first connecting ring (31) being larger than the outer diameter of the outer tube (1) and smaller than the outer diameter of the second connecting ring (41), the second connecting ring (41) being penetrated by a second bolt (42), the second bolt (42) being threadedly connected to a nut (34), and when the two outer tubes (1) are connected, the second connecting ring (41) and the first connecting ring (31) form a fitting relationship.
2. The pneumatic ash conveying pipeline according to claim 1 is characterized in that: The first connecting ring (31) is threadedly connected to the outer wall of the inner tube (2).
3. The pneumatic ash conveying pipeline according to claim 2 is characterized in that: The first connecting ring (31) is coaxially connected to an annular flange (35), and the annular flange (35) is threadedly connected to the inner tube (2).
4. The pneumatic ash conveying pipeline according to claim 3 is characterized in that: An abutment ring (36) is connected to the inner wall of the annular convex edge (35), and the end surface of the abutment ring (36) away from the inner tube (2) is flush with the end surface of the first connection ring (31).
5. The pneumatic ash conveying pipeline according to claim 1, characterized in that: A positioning piece is installed between the first connecting ring (31) and the second connecting ring (41).
6. The pneumatic ash conveying pipeline according to claim 1, characterized in that: An annular groove (311) for embedding the outer tube (1) is formed on one end surface of the first connecting ring (31).
7. The pneumatic ash conveying pipeline according to claim 1, characterized in that: The second bolt (42) passes through the first connecting ring (31) and the second connecting ring (41) and is connected to the nut (34).
8. The pneumatic ash conveying pipeline according to claim 1, characterized in that: The outer tube (1) is detachably mounted with a cover shell (7), the cover shell (7) being arranged in two halves, the first connecting ring (31) and the second connecting ring (41) being located inside the cover shell (7).