An oxygen delivery conduit

Abstract

The utility model relates to the field of oxygen delivery, mainly disclose an oxygen delivery pipeline, including pipeline surface is provided with the positioning ring, the pipeline one end is connected with the protection elbow pipe through the location bolt, the protection elbow pipe end face is equipped with the sealing groove, the sealing groove surface is provided with the first sealing pad, the positioning ring surface is equipped with the recess, the recess surface is provided with the fixed link, the fixed link surface is equipped with the limit board, the utility model discloses through the pipeline delivery into the protection elbow pipe, and the pipe diameter of protection elbow pipe is greater than the pipe diameter of pipeline, so after oxygen delivery into the protection elbow pipe, because the pipe diameter of protection elbow pipe is larger, then the airflow velocity of oxygen will reduce, thereby the airflow velocity of oxygen reduces, and then the friction of oxygen and the inner surface of protection elbow pipe will reduce, and the abrasion of oxygen to the inner wall of protection elbow pipe is reduced, and the abrasion -resistant layer and the fire -retardant layer that the inner surface of protection elbow pipe sets up can further improve the security of oxygen delivery.

Description

Technical Field

[0001] This utility model relates to the field of oxygen transportation, and more specifically, to an oxygen transportation pipeline. Background Technology

[0002] In practice, gas is mostly transported through pipelines. Due to the different properties of different gases, the requirements for the transport pipelines are also different. Existing oxygen transport methods include cylinder transport and pipeline transport. Pipeline transport requires the use of pipelines. Since oxygen is flammable, the pipelines used to transport oxygen have high flame retardancy requirements.

[0003] Chinese Patent CN204677911U discloses an oxygen transport pipeline, comprising an inner metal layer, an outer metal layer, and a flame retardant filling layer located between the inner and outer metal layers. Preferably, the flame retardant filling layer is made of alumina. When the equipment catches fire or an accident occurs, the flame retardant filling layer effectively extinguishes the flame. Even if the oxygen pipeline is exposed to fire, it will not burn in the oxygen, and it can extinguish the fire regardless of its location.

[0004] However, the pipeline in the above technical solution has bends. When oxygen passes through the bends at high speed, it will generate strong friction with the inner wall of the pipeline, which may cause a fire. At the same time, it will also cause wear and tear on the bends of the pipeline.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] The purpose of this invention is to provide an oxygen delivery pipeline to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An oxygen delivery pipeline includes a pipeline with a positioning ring on its surface. One end of the pipeline is connected to a protective bend via a positioning bolt. The inner surface of the protective bend is provided with a flame-retardant layer, and the surface of the flame-retardant layer is provided with a wear-resistant layer. The protective bend is provided with a fixing ring on its surface, and a sealing groove is provided on the end face of the protective bend, with a first sealing gasket provided on the surface of the sealing groove. The positioning ring has a groove on its surface, a fixing rod is provided on the surface of the groove, and a limiting plate is sleeved on the surface of the fixing rod.

[0008] Furthermore, the positioning ring is fixedly connected to the surface of the pipe, and an inclined groove is provided on the end face of the pipe, with a second sealing gasket provided on the surface of the inclined groove.

[0009] Furthermore, the surface of the sealing groove is chamfered, and the first sealing gasket is fixedly connected to the surface of the sealing groove.

[0010] Furthermore, the groove surface is provided with a threaded groove, one end of the fixing rod is provided with a thread, the fixing rod is screwed into the threaded groove by the thread, a bearing is sleeved on the surface of the fixing rod, and a base plate is sleeved on the outer ring surface of the bearing.

[0011] Furthermore, a limiting spring is sleeved on the surface of the fixing rod, with one end of the limiting spring fixedly connected to the bottom of the limiting plate and the other end of the limiting spring fixedly connected to the surface of the base plate.

[0012] Furthermore, the flame-retardant layer is fixedly connected to the inner surface of the protective bend, and the flame-retardant layer is fixedly connected to the inner annular surface of the wear-resistant layer.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the structure of the present invention, after oxygen is transported into the protective bend through the pipeline, the diameter of the protective bend is larger than the diameter of the pipeline. Therefore, after the oxygen is transported into the protective bend, the larger diameter of the protective bend will reduce the oxygen flow velocity. This reduction in oxygen flow velocity will reduce the friction between the oxygen and the inner surface of the protective bend, and at the same time reduce the wear of the oxygen on the inner wall of the protective bend. The wear-resistant layer and flame-retardant layer provided on the inner surface of the protective bend can further improve the safety of oxygen transportation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an oxygen delivery pipeline according to an embodiment of the present utility model; Figure 2 This is a partial cross-sectional view of an oxygen delivery pipeline according to an embodiment of the present utility model; Figure 3 yes Figure 2 Enlarged structural diagram at point A in the diagram; Figure 4 yes Figure 2 Enlarged structural diagram at point B in the diagram; Figure 5 This is a schematic diagram of a limiting plate structure in an oxygen delivery pipeline according to an embodiment of the present utility model; Figure 6 This is a partial structural diagram of a protective bend in an oxygen delivery pipeline according to an embodiment of the present utility model.

[0016] Figure label: 1. Pipe; 2. Positioning ring; 3. Positioning bolt; 4. Protective bend; 5. Flame retardant layer; 6. Wear-resistant layer; 7. Fixing ring; 8. Sealing groove; 9. First sealing gasket; 10. Groove; 11. Fixing rod; 12. Limiting plate; 13. Inclined groove; 14. Second sealing gasket; 15. Chamfer; 16. Threaded groove; 17. Bearing; 18. Base plate; 19. Limiting spring. Detailed Implementation

[0017] The utility model will now be further described with reference to the accompanying drawings and specific embodiments: Please see Figure 1-6 An oxygen delivery pipeline according to an embodiment of the present invention includes a pipeline 1, a positioning ring 2 provided on the surface of the pipeline 1, a protective bend 4 connected to one end of the pipeline 1 by a positioning bolt 3, a flame-retardant layer 5 provided on the inner surface of the protective bend 4, a wear-resistant layer 6 provided on the surface of the flame-retardant layer 5, the flame-retardant layer 5 being fixedly connected to the inner surface of the protective bend 4, and the flame-retardant layer 5 being fixedly connected to the inner annular surface of the wear-resistant layer 6. The positioning bolt 3 facilitates the connection and fixation of the pipeline 1 and the protective bend 4. The provision of the wear-resistant layer 6 further increases the wear resistance of the inner surface of the protective bend 4, further improving the service life of the protective bend 4, and the flame-retardant layer 5 enhances the protective effect of the protective bend 4.

[0018] The protective bend 4 has a fixing ring 7 on its surface, a sealing groove 8 on its end face, a first sealing gasket 9 on its surface, a groove 10 on its surface, a fixing rod 11 on its surface, and a limiting plate 12 on its surface. The sealing performance between the pipe 1 and the protective bend 4 is increased by the cooperation of the first sealing gasket 9, and the limiting plate 12 is slidably connected to the fixing rod 11.

[0019] Please see Figure 1 , Figure 2 and Figure 4 As shown, the positioning ring 2 is fixedly connected to the surface of the pipe 1. An inclined groove 13 is provided on the end face of the pipe 1. A second sealing gasket 14 is provided on the surface of the inclined groove 13. A chamfer 15 is provided on the surface of the sealing groove 8. A first sealing gasket 9 is fixedly connected to the surface of the sealing groove 8. When the pipe 1 is connected to the protective bend 4, one end of the pipe 1 is first inserted into the sealing groove 8. The chamfer 15 increases the contact area with the surface of the inclined groove 13. The inclined groove 13 increases the sealing with the side of the sealing groove 8. Then, the positioning bolt 3 is rotated to move the pipe 1, thereby increasing the compression of the first sealing gasket 9 and the second sealing gasket 14 and improving the sealing of the connection between the pipe 1 and the protective bend 4.

[0020] Please see Figure 2 , Figure 3 and Figure 5 As shown, the groove 10 has a threaded groove 16 on its surface, and one end of the fixing rod 11 has a thread. The fixing rod 11 is screwed into the threaded groove 16. A bearing 17 is fitted onto the surface of the fixing rod 11, and a base plate 18 is fitted onto the outer ring of the bearing 17. A limiting spring 19 is fitted onto the surface of the fixing rod 11. One end of the limiting spring 19 is fixedly connected to the bottom of the limiting plate 12, and the other end of the limiting spring 19 is fixedly connected to the surface of the base plate 18. When the positioning bolt 3 is screwed in, the limiting plate 12 can be reset, and the limiting plate 12 can be used to adjust the end face of the positioning bolt 3. The limit spring 19 is designed to hold the limit plate 12 in place, preventing the positioning bolt 3 from rotating due to vibration of the pipe 1. The limit spring 19 uses its own tension to fix the limit plate 12, preventing the limit plate 12 from moving freely along the fixing rod 11. In addition, when the limit plate 12 needs to be removed, the fixing rod 11 can be rotated so that one end of the fixing rod 11 can be disengaged from the threaded groove 16, and the limit plate 12 can be removed. The bearing 17 is designed to prevent the base plate 18 from rotating when the fixing rod 11 is rotated, thus preventing the limit spring 19 from twisting.

[0021] With the above-described solution of this utility model, after oxygen is transported into the protective bend 4 through the pipe 1, the diameter of the protective bend 4 is larger than that of the pipe 1. Therefore, after oxygen is transported into the protective bend 4, the larger diameter of the protective bend 4 will reduce the oxygen flow velocity. This reduction in oxygen flow velocity will reduce the friction between the oxygen and the inner surface of the protective bend 4, and at the same time reduce the wear of oxygen on the inner wall of the protective bend 4. The protective bend 4 is provided with a wear-resistant layer 6 and a flame-retardant layer 5 on its inner surface, which can further improve the safety of oxygen transportation.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oxygen delivery pipeline, comprising a pipeline (1), wherein a positioning ring (2) is disposed on the surface of the pipeline (1), characterized in that, One end of the pipe (1) is connected to a protective bend (4) by a positioning bolt (3). A flame-retardant layer (5) is provided on the inner surface of the protective bend (4), and a wear-resistant layer (6) is provided on the surface of the flame-retardant layer (5). The protective bend (4) is provided with a fixing ring (7) on its surface, and a sealing groove (8) is provided on the end face of the protective bend (4), and a first sealing gasket (9) is provided on the surface of the sealing groove (8). The positioning ring (2) has a groove (10) on its surface, a fixing rod (11) is provided on the surface of the groove (10), and a limiting plate (12) is sleeved on the surface of the fixing rod (11).

2. An oxygen delivery pipeline according to claim 1, characterized in that, The positioning ring (2) is fixedly connected to the surface of the pipe (1), and an inclined groove (13) is provided on the end face of the pipe (1). A second sealing gasket (14) is provided on the surface of the inclined groove (13).

3. An oxygen delivery pipeline according to claim 2, characterized in that, The sealing groove (8) has a chamfer (15) on its surface, and the first sealing gasket (9) is fixedly connected to the surface of the sealing groove (8).

4. An oxygen delivery pipeline according to claim 3, characterized in that, The groove (10) has a threaded groove (16) on its surface, and the fixed rod (11) has a thread on one end of its surface. The fixed rod (11) is screwed into the threaded groove (16) by the thread. The fixed rod (11) has a bearing (17) on its surface, and a base plate (18) is fitted on the outer ring of the bearing (17).

5. An oxygen delivery pipeline according to claim 4, characterized in that, The surface of the fixed rod (11) is fitted with a limiting spring (19). One end of the limiting spring (19) is fixedly connected to the bottom of the limiting plate (12), and the other end of the limiting spring (19) is fixedly connected to the surface of the base plate (18).

6. An oxygen delivery pipeline according to claim 5, characterized in that, The flame-retardant layer (5) is fixedly connected to the inner surface of the protective bend (4), and the flame-retardant layer (5) is fixedly connected to the inner ring surface of the wear-resistant layer (6).

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