Low temperature resistant valve for petroleum pipeline

Abstract

This utility model provides a cryogenic valve for oil pipelines. The cryogenic valve includes: a valve pipe; a valve frame, the valve frame being fixedly connected to the top of the outer surface of the valve pipe; a valve cover being installed on the top of the valve frame; an adjusting structure being installed on the top of the valve cover; a sealing structure being installed at the bottom of the adjusting structure; a first insulation component being installed on the top of the valve cover; a connector being installed on the front of the valve frame; two outlets of the connector being equipped with first connecting lines; a second connecting line being installed at the inlet of the connector; and a monitoring component being installed on the back of the valve frame. The cryogenic valve for oil pipelines provided by this utility model significantly improves the sealing performance of the valve in low-temperature environments, reduces the risk of media leakage due to reduced packing sealing performance, ensures the normal operation of the valve stem, and avoids affecting the opening and closing of the valve due to icing at the valve stem and packing.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic valve technology for oil pipelines, and in particular to a cryogenic valve for oil pipelines. Background Technology

[0002] An oil pipeline consists of oil pipes and their accessories, and is equipped with corresponding oil pump units according to the needs of the process flow. It is designed and installed into a complete pipeline system to complete the tasks of oil unloading and transportation.

[0003] Valves used on oil pipelines are primarily designed to start and stop pipeline operations and transport, while also regulating medium flow and pressure to adapt to different operating conditions, ensuring stable transport. They can also quickly cut off the medium during malfunctions or maintenance, isolate dangerous areas, prevent leaks from causing safety accidents, and facilitate pipeline maintenance. They are key equipment for ensuring the safe, efficient, and orderly operation of oil pipelines.

[0004] Ordinary cryogenic valves are prone to low-temperature conduction to critical parts such as valve sealing structure or connection points in low-temperature environments, leading to problems such as reduced valve sealing performance and obstructed valve operation.

[0005] Therefore, it is necessary to provide a cryogenic valve for oil pipelines to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a low-temperature resistant valve for oil pipelines, which solves the problem that ordinary oil pipeline valves are prone to having their sealing performance affected by external low-temperature conduction at the valve connection, thus causing obstruction of valve operation in low-temperature environments.

[0007] To solve the above-mentioned technical problems, the low-temperature resistant valve for oil pipelines provided by this utility model includes: a valve pipe;

[0008] A valve frame is fixedly connected to the outer surface of the valve pipe at the top position. A valve cover is installed on the top of the valve frame. An adjustment structure is installed on the top of the valve cover. A sealing structure is installed at the bottom of the adjustment structure. A first heat insulation component is installed on the top of the valve cover. A connector is installed on the front of the valve frame. A first connecting line is installed at each of the two outlets of the connector. A second connecting line is installed at the inlet of the connector. A monitoring component is installed on the back of the valve frame.

[0009] The second insulation component is installed on the outer surface of the valve tube. The second insulation component includes a heat insulation layer, a heating layer and a heat conduction layer. The heating layer is installed between the heat insulation layer and the heat conduction layer. The heat conduction layer is installed on the outer surface of the valve tube.

[0010] The second connecting line connects to the control panel inside the device frame and is used to control the first insulation component or the second insulation component to work independently. The heat-conducting layer is made of aluminum or copper, the heating layer is made of high-temperature resistant silicone with heating wires inside, and the insulation layer is made of insulation cotton. The first insulation component and the second insulation component are made of the same material.

[0011] Preferably, both ends of the valve tube are fixedly connected to connecting components, and a sealing sleeve is installed inside the valve frame.

[0012] Preferably, the connecting assembly includes a flange, a mounting groove, and a sealing ring. The flange is installed at both ends of the valve pipe, the mounting groove is formed at one end of the flange, and the sealing ring is installed inside the mounting groove.

[0013] The connecting assembly is used to install the valve in the corresponding position, and the sealing ring is used to increase the sealing of the connection.

[0014] Preferably, a device frame is installed on one side of the valve frame, and a sealing cover is installed on one side of the device frame.

[0015] Preferably, a connector is installed on the back of the device frame, and an external wiring is installed at one end of the back of the connector;

[0016] External wiring and power supply equipment connection.

[0017] Preferably, the monitoring assembly includes a mounting base and a monitoring component, the mounting base being used to mount the monitoring component to the back of the valve frame.

[0018] Preferably, a guide structure is installed on the outer surface of the first thermal insulation component, and a fixing structure is installed on the top position of the outer surface of the guide structure;

[0019] The fixed structure penetrates the mounting ring of the guide structure and contacts the insulation layer of the first insulation component.

[0020] Preferably, the guide structure includes a mounting ring and a guide cover, the mounting ring being mounted on the outer surface of the first insulation component, and the guide cover being mounted on the bottom end of the mounting ring;

[0021] The guide cover serves a guiding function.

[0022] Compared with related technologies, the cryogenic valve for oil pipelines provided by this utility model has the following advantages:

[0023] This utility model provides a cryogenic valve for oil pipelines. To improve the stability and cold resistance of the cryogenic valve in low-temperature environments, a second insulation component is installed on the outer surface of the valve pipe, while a first insulation component is installed on the top of the valve cover. The first insulation component improves the insulation and cold resistance to maintain the operational stability between the valve frame, valve cover, and regulating structure. The insulation and cold resistance provided by the second insulation component maintain the stability between the sealing structure and the valve pipe. This design significantly improves the sealing performance of the valve in low-temperature environments, reduces the risk of media leakage caused by reduced packing sealing performance, ensures the normal operation of the valve stem, and avoids affecting the opening and closing of the valve due to icing at the valve stem and packing. Attached Figure Description

[0024] Figure 1 A schematic diagram of the first embodiment of the cryogenic valve for oil pipelines provided by this utility model;

[0025] Figure 2 A schematic diagram of the valve frame is provided for this utility model;

[0026] Figure 3 A schematic diagram of the sealing ring is provided for this utility model;

[0027] Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown;

[0028] Figure 5 A schematic diagram of the heating layer is provided for this utility model;

[0029] Figure 6 A schematic diagram of the second embodiment of the cryogenic valve for oil pipelines provided by this utility model;

[0030] Figure 7 Provided for this utility model Figure 6 A magnified view of point B shown.

[0031] Labels in the diagram: 1. Valve pipe;

[0032] 2. Connecting components: 201. Flange; 202. Mounting groove; 203. Sealing ring.

[0033] 3. Valve frame;

[0034] 4. Valve cover; 401. Top cover; 402. Fixing structure; 403. Sealing plug;

[0035] 5. Adjustable structure; 6. First insulation component; 7. First connecting line; 8. Connector; 9. Second connecting line; 10. Equipment frame; 11. Sealing cover;

[0036] 12. Second insulation component; 121. Insulation layer; 122. Heating layer; 123. Heat-conducting layer;

[0037] 13. Monitoring components; 131. Mounting base; 132. Monitoring parts;

[0038] 14. Sealing structure; 15. Sealing sleeve; 16. Connector; 17. External wiring.

[0039] 18. Guide structure; 181. Mounting ring; 182. Guide cover;

[0040] 19. Fixed structure. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] First Embodiment

[0043] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the first embodiment of the cryogenic valve for oil pipelines provided by this utility model; Figure 2 A schematic diagram of the valve frame is provided for this utility model; Figure 3 A schematic diagram of the sealing ring is provided for this utility model; Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown; Figure 5 A schematic diagram of the heating layer is provided for this utility model. The cryogenic valve for oil pipelines includes: valve pipe 1;

[0044] A valve frame 3 is fixedly connected to the outer surface of the valve pipe 1 at the top position. A valve cover 4 is installed on the top of the valve frame 3. An adjustment structure 5 is installed on the top of the valve cover 4. A sealing structure 14 is installed at the bottom of the adjustment structure 5. A first heat insulation component 6 is installed on the top of the valve cover 4. A connector 8 is installed on the front of the valve frame 3. A first connecting line 7 is installed at each of the two outlets of the connector 8. A second connecting line 9 is installed at the inlet of the connector 8. A monitoring component 13 is installed on the back of the valve frame 3.

[0045] The second insulation component 12 is installed on the outer surface of the valve pipe 1. The second insulation component 12 includes an insulation layer 121, a heating layer 122 and a heat-conducting layer 123. The heating layer 122 is installed between the insulation layer 121 and the heat-conducting layer 123. The heat-conducting layer 123 is installed on the outer surface of the valve pipe 1.

[0046] The second connecting line 9 connects to the control panel inside the device frame 10, and is used to control the first insulation component 6 or the second insulation component 12 to work independently. The heat-conducting layer 123 is made of aluminum or copper, the heating layer 122 is made of high-temperature resistant silicone with heating wires inside, and the insulation layer 121 is made of insulation cotton. The first insulation component 6 and the second insulation component 12 are made of the same material. The first insulation component 6 is used to wrap the valve cover 4. The top of the valve cover 4 is provided with a conical rotating sealing structure to ensure the sealing of the adjustment structure 5 during rotation.

[0047] Please refer to Figure 1 and Figure 3 Both ends of the valve pipe 1 are fixedly connected to the connecting components 2, and the valve frame 3 is equipped with a sealing sleeve 15 inside;

[0048] The sealing sleeve 15 can increase the sealing between the valve frame 3 and the valve cover 4.

[0049] Please refer to Figure 1 and Figure 3 The connecting assembly 2 includes a flange 201, a mounting groove 202, and a sealing ring 203. The flange 201 is installed at both ends of the valve pipe 1, the mounting groove 202 is opened at one end of the flange 201, and the sealing ring 203 is installed inside the mounting groove 202.

[0050] Connection component 2 is used to install the valve in the corresponding position, and sealing ring 203 is used to increase the sealing of the connection;

[0051] Please refer to Figure 1 A device frame 10 is installed on one side of the valve frame 3, and a sealing cover 11 is installed on one side of the device frame 10.

[0052] The device frame 10 contains a circuit board that assists in the operation of the first insulation component 6 and the second insulation component 12.

[0053] Please refer to Figure 3 and Figure 4 A connector 16 is installed on the back of the device frame 10, and an external wiring 17 is installed on one end of the back of the connector 16.

[0054] External wiring 17 connects to the power supply equipment.

[0055] Please refer to Figure 2 and Figure 3 The monitoring component 13 includes a fixed base 131 and a monitoring component 132. The fixed base 131 is used to mount the monitoring component 132 on the back of the valve frame 3.

[0056] The monitoring component 132 is used to detect the temperature of the valve frame 3 and the valve pipe 1.

[0057] The working principle of the cryogenic valve for oil pipelines provided by this utility model is as follows:

[0058] A second insulation component 12 is installed on the outer surface of the valve pipe 1, and a first insulation component 6 is installed on the top of the valve cover 4. The first insulation component 6 improves the insulation and cold resistance performance to maintain the operational stability between the valve frame 3, the valve cover 4, and the regulating structure 5. The insulation and cold resistance provided by the second insulation component 12 can maintain the stability between the sealing structure 14 and the valve pipe 1. In actual use, the monitoring component 13 can monitor the temperature change of the low-temperature oil valve in real time. When the set value is reached, the corresponding controller controls the heating layer 122 in the first insulation component 6 and the second insulation component 12 to provide heat. Together with the heat conduction layer 123 and the insulation layer 121, the temperature of the low-temperature valve is maintained, the sealing of the connection is maintained, the valve is prevented from freezing, and the operation of the operator is facilitated.

[0059] Compared with related technologies, the cryogenic valve for oil pipelines provided by this utility model has the following advantages:

[0060] To improve the stability and cold resistance of cryogenic valves in oil pipelines operating in low-temperature environments, a second insulation component 12 is installed on the outer surface of valve pipe 1, while a first insulation component 6 is installed on the top of valve cover 4. The first insulation component 6 improves insulation and cold resistance to maintain the operational stability between valve frame 3, valve cover 4, and regulating structure 5. The insulation and cold resistance provided by the second insulation component 12 can maintain the stability between sealing structure 14 and valve pipe 1. This design significantly improves the sealing performance of the valve in low-temperature environments, reduces the risk of media leakage caused by reduced packing sealing performance, ensures the normal operation of the valve stem, and avoids affecting the opening and closing of the valve due to icing at the valve stem and packing.

[0061] Second Embodiment

[0062] Please refer to the following: Figures 6-7 , Figure 6 A schematic diagram of the second embodiment of the cryogenic valve for oil pipelines provided by this utility model; Figure 7 Provided for this utility model Figure 6 The enlarged view at point B shows a cryogenic valve for oil pipelines based on the first embodiment of this application. The second embodiment of this application proposes another cryogenic valve for oil pipelines. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0063] Specifically, the difference between the cryogenic valve for oil pipelines provided in the second embodiment of this application and the following is noted: Figure 6The outer surface of the first thermal insulation component 6 is equipped with a guide structure 18, and a fixing structure 19 is installed on the top position of the outer surface of the guide structure 18.

[0064] The fixing structure 19 penetrates the mounting ring 181 of the guide structure 18 and contacts the insulation layer 121 of the first insulation component 6.

[0065] Please refer to Figure 6 and Figure 7 The guide structure 18 includes a mounting ring 181 and a guide cover 182. The mounting ring 181 is mounted on the outer surface of the first thermal insulation component 6, and the guide cover 182 is mounted on the bottom end of the mounting ring 181.

[0066] The guide cover 182 serves a guiding function to prevent rainwater or snow from directly contacting the valve.

[0067] Compared with related technologies, the cryogenic valve for oil pipelines provided by this utility model has the following advantages:

[0068] In order to reduce the temperature loss from the valve due to the low temperature environment and improve the valve's cold resistance, a conical guide structure 18 is installed on the outer surface of the first insulation component 6 through the fixing structure 19. This guide structure 18 can direct rainwater and wind to the surrounding area, preventing cold snow or rainwater from directly contacting the valve, which is beneficial to improving the insulation effect of the low temperature valve in the low temperature environment.

[0069] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cryogenic resistant valve for use in petroleum piping, characterized by, include: Valve tube; A valve frame is fixedly connected to the outer surface of the valve pipe at the top position. A valve cover is installed on the top of the valve frame. An adjustment structure is installed on the top of the valve cover. A sealing structure is installed at the bottom of the adjustment structure. A first heat insulation component is installed on the top of the valve cover. A connector is installed on the front of the valve frame. A first connecting line is installed at each of the two outlets of the connector. A second connecting line is installed at the inlet of the connector. A monitoring component is installed on the back of the valve frame. The second insulation component is installed on the outer surface of the valve tube. The second insulation component includes a heat insulation layer, a heating layer and a heat-conducting layer. The heating layer is installed between the heat insulation layer and the heat-conducting layer, and the heat-conducting layer is installed on the outer surface of the valve tube.

2. The low temperature resistant valve for petroleum piping according to claim 1, characterized by Both ends of the valve tube are fixedly connected to connecting components, and a sealing sleeve is installed inside the valve frame.

3. The low temperature resistant valve for petroleum piping according to claim 2, characterized by The connecting assembly includes a flange, a mounting groove, and a sealing ring. The flange is installed at both ends of the valve pipe, the mounting groove is formed at one end of the flange, and the sealing ring is installed inside the mounting groove.

4. The low temperature resistant valve for petroleum piping according to claim 1, characterized by A device frame is installed on one side of the valve frame, and a sealing cover is installed on one side of the device frame.

5. The cryogenic resistant valve for use in petroleum piping according to claim 4, characterized by A connector is installed on the back of the device frame, and an external wiring is installed on one end of the back of the connector.

6. The cryogenic resistant valve for use in petroleum piping according to claim 1, characterized by The monitoring assembly includes a mounting base and a monitoring component, the mounting base being used to mount the monitoring component to the back of the valve frame.

7. The cryogenic resistant valve for use in petroleum piping according to claim 1, characterized by The outer surface of the first thermal insulation component is equipped with a guide structure, and a fixing structure is installed on the top position of the outer surface of the guide structure.

8. The cryogenic valve for oil pipelines according to claim 7, characterized in that, The guide structure includes a mounting ring and a guide cover. The mounting ring is mounted on the outer surface of the first insulation component, and the guide cover is mounted on the bottom end of the mounting ring.

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