A type of insulated elbow for steam pipes

Abstract

This utility model discloses a steam pipe heat-insulating elbow, belonging to the field of elbow technology. This steam pipe heat-insulating elbow includes an elbow body and a pair of connecting components. The pair of connecting components are respectively disposed at both ends of the elbow body. The elbow body includes an elbow pipe body. The connecting components are used to connect the elbow body and the steam pipeline. Connecting holes are provided at both ends of the elbow pipe body. Each pair of connecting components includes a connecting pipe. Two connecting pipes are respectively disposed at both ends of the elbow body, and one end of each connecting pipe is located inside one of the two connecting holes. The outer wall of one end of each connecting pipe is tightly fitted to the inner wall of the two connecting holes. A spherical seat is provided at the end of the connecting pipe away from the connecting hole. A connecting seat is sleeved on the outside of the spherical seat. The spherical seat and the connecting seat are rotatably connected. This utility model can effectively improve the practicality of the elbow and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of elbow technology, specifically to a heat-insulating elbow for steam pipes. Background Technology

[0002] Steam pipe elbows are pipe fittings used in steam piping systems to change the direction of steam flow. They are typically made of high-quality carbon steel or alloy steel to withstand the high temperature and pressure of steam. Based on angle, the three most common types are 45 degrees, 90 degrees, and 180 degrees. Other non-standard angle elbows, such as 60 degrees, are also available depending on project requirements. Common connection methods to pipes include direct welding, flange connection, hot-melt connection, electrofusion connection, threaded connection, and socket connection.

[0003] Based on the above, the inventors have discovered the following problems: the current steam pipeline network layout is relatively complex, the connection angles at both ends of the elbows cannot be adjusted, installation is difficult, and it is inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a steam pipe heat insulation elbow in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a heat-insulating elbow for steam pipes to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A steam pipe heat-insulating elbow includes an elbow body and a pair of connecting assemblies. The pair of connecting assemblies are respectively disposed at both ends of the elbow body. The elbow body includes an elbow pipe body. The connecting assemblies are used to connect the elbow body and the steam pipe. Both ends of the elbow pipe body are provided with connecting holes. Each pair of connecting assemblies includes a connecting pipe. The two connecting pipes are respectively disposed at both ends of the elbow body, and one end of each connecting pipe is located inside the two connecting holes. The outer wall of one end of each connecting pipe is tightly fitted with the inner wall of the two connecting holes. A spherical seat is provided at the end of the connecting pipe away from the connecting hole. A connecting seat is sleeved on the outside of the spherical seat. The spherical seat and the connecting seat are rotatably connected.

[0008] Furthermore, the connecting seat has a branch pipe connected to the end away from the spherical seat, and a connecting seat is rotatably connected to the outside of the branch pipe at the end away from the connecting seat. The connecting seat has several internal threads on its inner wall at the end away from the branch pipe.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, since the connecting seat has an internal thread on the inner wall at the end away from the branch pipe, it is convenient to connect the connecting seat to pipe fittings with external threads, such as valves and steam pipes, by means of threaded connection. When the connecting seat is threadedly connected to the steam pipe, steam can enter the connecting seat, branch pipe, connecting seat, ball seat, connecting pipe in sequence through the steam pipe, and finally enter the elbow pipe body.

[0010] Furthermore, a sealing gasket is installed at one end of the branch pipe located inside the connector, the outer wall of the sealing gasket is tightly fitted with the inner wall of the connector, and the sealing gasket is in the shape of a hollow ring.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by setting a sealing gasket, the sealing performance between the connecting seat and the branch pipe is improved, effectively preventing steam leakage when it flows through the connection between the branch pipe and the connecting seat, ensuring the sealing and safety of steam transportation, and avoiding heat loss, energy waste and safety hazards caused by steam leakage.

[0012] Furthermore, the interior of the spherical seat is hollow, and through holes are provided at both ends of the spherical seat. A flow channel is formed between the inner walls of the connecting pipe, the spherical seat, the connecting seat, the branch pipe, the sealing gasket, and the connecting seat.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the spherical seat is hollow inside and forms a flow channel with the inner walls of the connecting pipe, connecting seat, branch pipe, etc., so that steam can be transported efficiently in the pipeline.

[0014] Furthermore, the elbow pipe body has sealing grooves on the inner walls of the two connecting holes, and sealing rings are installed in the two sealing grooves. The two sealing rings are respectively fitted onto the outside of the two connecting pipes at the ends away from the connecting seats.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the inner wall of the connecting hole at both ends of the elbow pipe body is provided with a sealing groove, and a sealing ring is installed in the sealing groove. The sealing ring is sleeved on the end of the connecting pipe, which can effectively prevent steam from leaking from the connection between the elbow pipe body and the connecting pipe.

[0016] Furthermore, the elbow pipe body is provided with a heat insulation reinforcement layer on the outside, and a heat insulation layer is provided on the outside of the heat insulation reinforcement layer. The heat insulation reinforcement layer is a polyurethane foam layer, and the heat insulation layer is an aluminum carbonate fiber layer.

[0017] The beneficial effects of adopting the above-mentioned further solution are that, since the insulation reinforcement layer is a polyurethane foam layer and the heat insulation layer is an aluminum carbonate fiber layer, the polyurethane foam layer, as the insulation reinforcement layer, has a low thermal conductivity, which can effectively reduce the loss of steam heat from the elbow to the external environment, maintain the steam temperature, and improve the thermal efficiency of steam transportation. The aluminum carbonate fiber layer, as the heat insulation layer, is resistant to high temperature and has good heat insulation performance, which can block the external heat from entering the elbow pipe body and prevent the external high temperature from affecting the steam temperature inside the pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This steam pipe insulated elbow, due to the rotatable connection between the branch pipe and the connecting seat, and the internal thread on the inner wall of the connecting seat at the end furthest from the branch pipe, facilitates connection between the connecting seat and externally threaded pipe fittings such as steam inlet pipes via threaded connection. After the connecting seat is threadedly connected to the steam inlet pipe, the angle of the elbow body can be adjusted according to the direction of the steam outlet pipe. Because the connecting seat and the ball seat are rotatably connected, the angle can be flexibly adjusted within a certain range when the elbow is connected to the steam pipeline, facilitating installation and docking in complex pipe layouts, adapting to different installation spaces and routing requirements, reducing installation difficulty, and improving installation efficiency. After the angle adjustment is completed, the internal thread of the connecting seat is used to connect to the steam outlet pipe, thereby realizing the connection between the steam inlet pipe, the elbow body, and the steam outlet pipe. Steam can sequentially enter the connecting seat, branch pipe, connecting seat, ball seat, and connecting pipe through the steam inlet pipe, finally entering the elbow body, and then entering the steam outlet pipe from the elbow body. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a steam pipe heat insulation elbow provided by this utility model;

[0020] Figure 2 A three-dimensional structural diagram of the elbow body of a steam pipe heat insulation elbow provided by this utility model;

[0021] Figure 3 An exploded three-dimensional structural diagram of a connection component for a steam pipe heat-insulating elbow provided by this utility model;

[0022] Figure 4 A side sectional view of the connection assembly of a steam pipe heat insulation elbow provided by this utility model;

[0023] Figure 5 A front cross-sectional view of the elbow body of a steam pipe heat insulation elbow provided by this utility model.

[0024] In the diagram: 1. Elbow body; 11. Elbow pipe body; 12. Thermal insulation layer; 13. Insulation layer; 14. Connection hole; 15. Sealing groove; 2. Connection assembly; 21. Connection pipe; 22. Sealing ring; 23. Spherical seat; 24. Through hole; 25. Connecting seat; 26. Branch pipe; 27. Connection seat; 28. Sealing gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a steam pipe heat-insulating elbow, including an elbow body 1 and a pair of connecting components 2. The pair of connecting components 2 are respectively disposed at both ends of the elbow body 1. The elbow body 1 includes an elbow pipe body 11. The connecting components 2 are used to connect the elbow body 1 and the steam pipeline. Both ends of the elbow pipe body 11 are provided with connecting holes 14. Each pair of connecting components 2 includes a connecting pipe 21. The two connecting pipes 21 are respectively disposed at both ends of the elbow body 1, and one end of the two connecting pipes 21 is located inside the two connecting holes 14. The outer wall of one end of the two connecting pipes 21 is respectively connected to the two connecting holes 14. The inner wall of 4 is tightly fitted. The connecting pipe 21 has a spherical seat 23 at the end away from the connecting hole 14. The outer side of the spherical seat 23 is fitted with a connecting seat 25. The spherical seat 23 and the connecting seat 25 are rotatably connected. When the connecting seat 27 is threadedly connected to the steam inlet pipe, the angle of the elbow body 1 is adjusted according to the direction of the steam outlet pipe. Since the connecting seat 25 and the spherical seat 23 are rotatably connected, the elbow can flexibly adjust the angle within a certain range when connected to the steam pipeline. This facilitates installation and docking in complex pipeline layouts, adapts to different installation spaces and routing requirements, reduces installation difficulty, and improves installation efficiency.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5This utility model provides a technical solution: A branch pipe 26 is connected to the end of the connecting seat 25 away from the spherical seat 23. A connecting seat 27 is rotatably connected to the end of the branch pipe 26 away from the connecting seat 25. Several internal threads are formed on the inner wall of the connecting seat 27 at the end away from the branch pipe 26. A sealing gasket 28 is installed at the end of the branch pipe 26 located inside the connecting seat 27. The outer wall of the sealing gasket 28 is tightly fitted to the inner wall of the connecting seat 27. The sealing gasket 28 is a hollow ring. The spherical seat 23 is hollow inside, and through holes 24 are formed at both ends of the spherical seat 23. A flow channel is formed between the inner walls of the connecting pipe 21, spherical seat 23, connecting seat 25, branch pipe 26, sealing gasket 28, and connecting seat 27. A sealing groove 15 is formed on the inner wall of the elbow pipe body 11 located at the two connecting holes 14. A sealing ring 22 is installed in each of the two sealing grooves 15. The two sealing rings 22 are respectively fitted onto the two connecting pipes 21 away from the connecting seat 23. At one end of 7, the branch pipe 26 is rotatably connected to the connecting seat 27. Since the connecting seat 27 has an internal thread on the inner wall at the end away from the branch pipe 26, it is easy to connect the connecting seat 27 to a pipe fitting with an external thread, such as a steam inlet pipe, by means of a threaded connection. After the connecting seat 27 is threadedly connected to the steam pipe, steam can enter the connecting seat 27, branch pipe 26, connecting seat 25, ball seat 23, and connecting pipe 21 through the steam pipe in sequence, and finally enter the elbow pipe body 11. By setting the sealing gasket 28, the sealing performance between the connecting seat 27 and the branch pipe 26 is improved, which effectively prevents steam leakage when it flows through the connection between the branch pipe 26 and the connecting seat 27. The inner wall of the connecting holes 14 at both ends of the elbow pipe body 11 is provided with a sealing groove 15, and a sealing ring 22 is installed in the sealing groove 15. The sealing ring 22 is sleeved on the end of the connecting pipe 21, which can effectively prevent steam leakage from the connection between the elbow pipe body 11 and the connecting pipe 21.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5This utility model provides a technical solution: the outside of the elbow pipe body 11 is provided with a heat insulation reinforcement layer 12, and the outside of the heat insulation reinforcement layer 12 is provided with a heat insulation layer 13. The heat insulation reinforcement layer 12 is a polyurethane foam layer, and the heat insulation layer 13 is an aluminum carbonate fiber layer. Since the heat insulation reinforcement layer 12 is a polyurethane foam layer and the heat insulation layer 13 is an aluminum carbonate fiber layer, the polyurethane foam layer as the heat insulation reinforcement layer 12 has a low thermal conductivity, which can effectively reduce the loss of steam heat at the elbow to the external environment, maintain the steam temperature, and improve the thermal efficiency of steam transportation. The aluminum carbonate fiber layer as the heat insulation layer 13 is resistant to high temperature and has good heat insulation performance, which can block the external heat from entering the elbow pipe body 11 and prevent the external high temperature from affecting the steam temperature inside the pipe.

[0031] Specifically, the working principle of this type of insulated steam pipe elbow is as follows: During use, the branch pipe 26 is rotatably connected to the connecting seat 27. Since the connecting seat 27 has an internal thread on its inner wall at the end furthest from the branch pipe 26, it facilitates connection between the connecting seat 27 and a pipe fitting with external threads, such as a steam inlet pipe, via a threaded connection. After the connecting seat 27 is threadedly connected to the steam inlet pipe, the angle of the elbow body 1 is adjusted according to the direction of the steam outlet pipe. Because the connecting seat 25 is rotatably connected to the ball seat 23, the elbow can flexibly adjust within a certain range when connected to the steam pipeline. The angle can be adjusted flexibly to facilitate installation and connection in complex pipeline layouts, adapt to different installation spaces and routing requirements, reduce installation difficulty, and improve installation efficiency. After the angle is adjusted, the internal thread of the connecting seat 27 is used to connect with the steam outlet pipeline, thereby realizing the connection between the steam inlet pipeline, the elbow body 1 and the steam outlet pipeline. Steam can enter the connecting seat 27, branch pipe 26, connecting seat 25, ball seat 23 and connecting pipe 21 in sequence through the steam inlet pipeline, and finally enter the elbow pipe body 11, and then enter the steam outlet pipeline from the elbow pipe body 11.

[0032] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A heat-insulating elbow for steam pipes, characterized in that, The elbow body (1) includes a elbow body (1) and a pair of connecting components (2). The pair of connecting components (2) are respectively disposed at both ends of the elbow body (1). The elbow body (1) includes an elbow pipe body (11). The connecting components (2) are used to connect the elbow body (1) and the steam pipeline. Both ends of the elbow pipe body (11) are provided with connecting holes (14). Both of the pair of connecting components (2) include connecting pipes (21). The two connecting pipes (21) are respectively disposed at both ends of the elbow body (1), and one end of the two connecting pipes (21) is located inside the two connecting holes (14). The outer wall of one end of the two connecting pipes (21) is tightly fitted with the inner wall of the two connecting holes (14). The connecting pipe (21) is provided with a spherical seat (23) at the end away from the connecting hole (14). A connecting seat (25) is sleeved on the outside of the spherical seat (23). The spherical seat (23) and the connecting seat (25) are rotatably connected.

2. The steam pipe heat-insulating elbow according to claim 1, characterized in that, The connecting seat (25) is connected to a branch pipe (26) at the end away from the spherical seat (23). The branch pipe (26) is rotatably connected to a connecting seat (27) at the end away from the connecting seat (25). The connecting seat (27) has several internal threads on the inner wall at the end away from the branch pipe (26).

3. A steam pipe heat-insulating elbow according to claim 2, characterized in that, The branch pipe (26) has a sealing gasket (28) installed at one end inside the connecting seat (27). The outer wall of the sealing gasket (28) is in close contact with the inner wall of the connecting seat (27). The sealing gasket (28) is in the shape of a hollow ring.

4. A steam pipe heat-insulating elbow according to claim 3, characterized in that, The interior of the spherical seat (23) is hollow, and through holes (24) are provided at both ends of the spherical seat (23). A flow channel is formed between the inner walls of the connecting pipe (21), the spherical seat (23), the connecting seat (25), the branch pipe (26), the sealing gasket (28), and the connecting seat (27).

5. A steam pipe heat-insulating elbow according to claim 1, characterized in that, The elbow pipe body (11) has a sealing groove (15) on the inner wall of the two connecting holes (14). A sealing ring (22) is installed in each of the two sealing grooves (15). The two sealing rings (22) are respectively sleeved on the outside of the end of the two connecting pipes (21) away from the connecting seat (27).

6. A steam pipe heat-insulating elbow according to claim 5, characterized in that, The elbow pipe body (11) is provided with a heat insulation reinforcement layer (12) on the outside, and a heat insulation layer (13) is provided on the outside of the heat insulation reinforcement layer (12). The heat insulation reinforcement layer (12) is a polyurethane foam layer, and the heat insulation layer (13) is an aluminum carbonate fiber layer.

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