Control valve group suitable for delayed coking device

Abstract

The utility model relates to the field of thermal cracking processes, and discloses a control valve group suitable for a delayed coking device. A check valve connector is fixedly installed on the surface of one side of the check valve, a threaded hole is formed in the surface of the check valve connector, a threaded rod is movably installed on the side, corresponding to the check valve connector, of the check valve, a check valve reinforcing rod is fixedly connected to the surface of the check valve, and a check valve switch is fixedly installed on the upper surface of the check valve. The valve bank can be installed in a pipeline connection mode in a place with a large installation area, however, the number of control valve bank valves of the delayed coking device is large, installation limitation is large in a small area, the number of check valves in the valve bank is large, and the threaded rod can be installed at the connector in the installation process. The threaded holes are formed in the ports in the two ends of the check valve, reasonable installation can be conducted according to the size of an installation area, and adaptability is high.

Description

Technical Field

[0001] The present application belongs to the technical field of thermal cracking process, and specifically relates to a control valve group suitable for a delayed coking device. Background Art

[0002] Delayed coking is the most thorough thermal cracking process for decarbonization and one of the main ways to lighten heavy oil. The raw materials of delayed coking units are all residual oils with poor properties, which are easy to coke when heated in the heating furnace. Therefore, the coking heating furnace adopts the method of multi-point water injection to increase the linear speed of oil and gas in the furnace tube to reduce the coking rate in the tube, but this not only increases the energy consumption of the unit but also produces a large amount of difficult-to-treat oily wastewater.

[0003] For example, the application with publication number CN207016720U discloses a control valve group suitable for a delayed coking device, including a first filling pipeline, a second filling pipeline and a third filling pipeline; the first filling pipeline and the second filling pipeline are both connected to the third filling pipeline; the first filling pipeline is provided with a first flow regulating valve for regulating the flow and a first automatic stopcock for controlling the filling of the first filling pipeline in sequence. Through the cooperation of the first filling pipeline and the second filling pipeline, medium is added to the furnace tube of the heating furnace, light hydrocarbons are added preferentially, and when light hydrocarbons are insufficient, water vapor is added, thereby reducing the coking rate while also reducing the amount of oily wastewater generated.

[0004] However, the direct pipe connection method in the installation of the control valve group suitable for the delayed coking device in the application is inconvenient to install the valve group in a smaller place. Now, a control valve group suitable for the delayed coking device is provided, which can be connected according to environmental changes. Utility Model Content

[0005] The purpose of the present application is to provide a control valve group suitable for a delayed coking unit in order to solve the problem that the direct connection of pipelines exists in the installation of the control valve group suitable for a delayed coking unit and it is inconvenient to install the valve group in a smaller place.

[0006] The technical solution adopted in the present application is as follows: a control valve group suitable for a delayed coking device, a check valve interface is fixedly installed on one side surface of the check valve, a threaded hole is provided on the surface of the check valve interface, a threaded rod is movably installed on the side of the check valve corresponding to the check valve interface, a check valve reinforcement rod is fixedly connected to the surface of the check valve, and a check valve valve switch is fixedly installed on the upper surface of the check valve.

[0007] By adopting the above technical solution, the valve group can be installed by pipeline connection in places with larger installation areas, but the control valve group of the delayed coking unit has more valves, and the installation in a smaller area is more limited. There are more check valves in the valve group. During the installation process, the threaded rod can be installed at the interface. The interfaces at both ends of the check valve are equipped with threaded holes, which can be reasonably installed according to the size of the installation area, and has strong adaptability.

[0008] In a preferred embodiment, a second filling pipeline is movably mounted on one side of the check valve, and an automatic stopcock is movably and fixedly mounted on the surface of the second filling pipeline.

[0009] By adopting the above technical solution, the automatic plug valve is used as a valve to control the flow of fluid. Its working principle is to open or close the channel by rotating the plug body. The plug body usually has one or more channels. When it is aligned with the valve body, the fluid can pass through the valve; when it is rotated 90 degrees and not aligned with the valve body, the channel is closed to prevent the fluid from flowing.

[0010] In a preferred embodiment, a third filling pipeline is fixedly installed at the end of the automatic stopcock, and a water shutoff valve is fixedly connected to the surface of the third filling pipeline.

[0011] By adopting the above technical solution, the water shutoff valve controls the valve of water flow, which can completely cut off or regulate the flow of water, and the user can adjust the size of the water flow through the water shutoff valve.

[0012] In a preferred embodiment, an automatic plug valve interface is fixedly mounted on the upper surface of the automatic plug valve, and an automatic plug valve is fixedly mounted on the surface of the automatic plug valve interface.

[0013] By adopting the above technical solution, the automatic plug valve is based on the rotational movement of the plug body. When the control unit receives an open or close signal, the actuator drives the plug body to rotate a certain angle (usually 90 degrees) so that the channel on the plug body is aligned or staggered with the channel on the valve body, thereby achieving the flow or cutoff of the fluid.

[0014] In a preferred embodiment, a steam trap is fixedly installed on the surface of the third filling pipeline adjacent to the water cut-off valve.

[0015] By adopting the above technical solution, the steam trap uses the density difference between condensed water and steam to work, and the subcooling degree is small, and it is not affected by the working pressure and temperature changes. It is suitable for heating equipment to achieve the best heat exchange efficiency.

[0016] In a preferred embodiment, a flow regulating valve is fixedly connected to the surface of the check valve adjacent to the steam trap, a mounting rod is fixedly installed on the surface of the flow regulating valve, a flow controller is fixedly installed on the surface of the mounting rod, a flow display meter is fixedly installed on one side of the flow controller, and a flow regulating valve is movably installed on the upper surface of the flow regulating valve.

[0017] By adopting the above technical solution, the flow regulating valve adjusts the flow through the valve by changing the size of the opening inside the valve, thereby achieving precise control of the fluid. The operator changes the size of the opening inside the valve by manually rotating the handle or wheel of the valve, thereby adjusting the flow.

[0018] In a preferred embodiment, a water inlet is welded on the surface of the second filling pipeline, and a water outlet is fixedly installed on the surface of the first filling pipeline.

[0019] By adopting the above technical solution, the liquid enters the pipeline through the water inlet and flows out of the pipeline from the water outlet.

[0020] In a preferred embodiment, a first filling pipeline is fixedly installed at the outlet connection of the flow regulating valve, and the third filling pipeline is connected to the second filling pipeline and the first filling pipeline.

[0021] By adopting the above technical solution, the third filling pipeline, the second filling pipeline and the first filling pipeline transport different media (such as light hydrocarbons or water vapor) into the furnace tubes of the heating furnace. These pipelines are controlled by a series of valves to adjust and control the flow of the media.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0023] In this application, the valve group can be installed using pipeline connection in places with larger installation areas, but the delayed coking unit has more control valve groups, and the installation in a smaller area is more limited. There are more check valves in the valve group. During the installation process, the threaded rod can be installed at the interface. The interfaces at both ends of the check valve are equipped with threaded holes, which can be reasonably installed according to the size of the installation area, and has strong adaptability.

[0024] Automatic plug valve is a valve used to control the flow of fluid. Its working principle is to open or close the channel by rotating the plug body. The plug body usually has one or more channels. When it is aligned with the valve body, the fluid can pass through the valve; when it is rotated 90 degrees and not aligned with the valve body, the channel is closed, preventing the fluid from flowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of the control valve group of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the check valve of the control valve group in this application;

[0027] Figure 3 This is a schematic diagram of the structure of the flow regulating valve of the control valve group in this application;

[0028] Figure 4 This is a schematic diagram of the structure of the automatic plug valve of the control valve group in this application.

[0029] Markings in the figure: 1. Check valve; 2. Water inlet; 3. Drain valve; 4. Flow regulating valve; 5. Water outlet; 6. First filling pipeline; 7. Water shut-off valve; 8. Automatic plug valve; 9. Second filling pipeline; 10. Check valve switch; 11. Check valve reinforcement rod; 12. Threaded rod; 13. Check valve interface; 14. Flow controller; 15. Flow display meter; 16. Flow regulating valve; 17. Automatic plug valve; 18. Automatic plug valve interface; 19. Third filling pipeline. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Reference Figure 1-4 ,

[0032] Example:

[0033] A control valve group suitable for a delayed coking device, wherein a check valve interface 13 is fixedly installed on one side surface of a check valve 1, a threaded hole is provided on the surface of the check valve interface 13, a threaded rod 12 is movably installed on the side of the check valve 1 corresponding to the check valve interface 13, a check valve reinforcement rod 11 is fixedly connected to the surface of the check valve 1, and a check valve valve switch 10 is fixedly installed on the upper surface of the check valve 1.

[0034] In places with a larger installation area, the valve group can be installed using a pipeline connection method, but the delayed coking unit has more control valves in the valve group, and there are greater limitations on installation in a smaller area. There are a large number of check valves 1 in the valve group. During the installation process, the threaded rod 12 can be installed at the interface. The interfaces at both ends of the check valve 1 are installed with threaded holes, which can be reasonably installed according to the size of the installation area, and has strong adaptability.

[0035] A second filling pipeline 9 is movably mounted on one side of the check valve 1, and an automatic plug valve 8 is movably and fixedly mounted on the surface of the second filling pipeline 9. The automatic plug valve 8 is a valve used to control the flow of fluid, and its working principle is to open or close the channel by rotating the plug body. The plug body usually has one or more channels, and when it is aligned with the valve body, the fluid can pass through the valve; when it is rotated 90 degrees and is not aligned with the valve body, the channel is closed to prevent the flow of fluid.

[0036] The third filling pipeline 19 is fixedly installed at the end of the automatic stopcock 8, and the surface of the third filling pipeline 19 is fixedly connected with a water cut-off valve 7. The water cut-off valve 7 is a valve that controls the water flow, which can completely cut off or adjust the flow of water. The user can adjust the water flow through the water cut-off valve 7.

[0037] The upper surface of the automatic plug valve 8 is fixedly mounted with an automatic plug valve interface 18, and the surface of the automatic plug valve interface 18 is fixedly mounted with an automatic plug valve 17. The automatic plug valve 17 is based on the rotational movement of the plug body. When the control unit receives an opening or closing signal, the actuator drives the plug body to rotate a certain angle, usually 90 degrees, so that the channel on the plug body is aligned or staggered with the channel on the valve body, thereby realizing the flow or cutoff of the fluid.

[0038] A steam trap 3 is fixedly installed on the surface of the third filling pipeline 19 adjacent to the water cut-off valve 7. The steam trap 3 works by utilizing the density difference between condensed water and steam, and has a small degree of subcooling, is not affected by working pressure and temperature changes, and is suitable for heating equipment to achieve optimal heat exchange efficiency.

[0039] A flow regulating valve 4 is fixedly connected to the surface of the check valve 1 adjacent to the steam trap 3, a mounting rod is fixedly installed on the surface of the flow regulating valve 4, a flow controller 14 is fixedly installed on the surface of the mounting rod, a flow display meter 15 is fixedly installed on one side of the flow controller 14, and a flow regulating valve 16 is movably installed on the upper surface of the flow regulating valve 4. The flow regulating valve 4 adjusts the flow through the valve by changing the size of the opening inside the valve, thereby achieving precise control of the fluid. The operator changes the size of the opening inside the valve by manually rotating the handle or wheel of the valve, thereby adjusting the flow.

[0040] A water inlet 2 is welded on the surface of the second filling pipeline 9, and a water outlet 5 is fixedly installed on the surface of the first filling pipeline 6. Liquid enters the pipeline through the water inlet 2 and flows out of the pipeline from the water outlet 5.

[0041] The outlet connection of the flow regulating valve 4 is fixedly installed with the first filling pipeline 6, and the third filling pipeline 19 is interconnected with the second filling pipeline 9 and the first filling pipeline 6. The third filling pipeline 19, the second filling pipeline 9, and the first filling pipeline 6 transport different media such as light hydrocarbons or water vapor to the furnace tube of the heating furnace, and these pipelines are controlled by a series of valves to adjust and control the flow of the medium.

[0042] The implementation principle of a control valve group embodiment applicable to a delayed coking device in the present application is as follows:

[0043] In places with a larger installation area, the valve group can be installed using a pipeline connection method, but the delayed coking unit has more control valves in the valve group, and there are greater limitations on installation in a smaller area. There are a large number of check valves 1 in the valve group. During the installation process, the threaded rod 12 can be installed at the interface. The interfaces at both ends of the check valve 1 are installed with threaded holes, which can be reasonably installed according to the size of the installation area, and has strong adaptability.

[0044] The third filling pipeline 19, the second filling pipeline 9, and the first filling pipeline 6 transport different media such as light hydrocarbons or water vapor to the furnace tubes of the heating furnace. These pipelines are controlled by a series of valves to regulate and control the flow of the media. The automatic plug valve 8 is a valve used to control the flow of fluid. Its working principle is to open or close the channel by rotating the plug body. The plug body usually has one or more channels. When it is aligned with the valve body, the fluid can pass through the valve; when it is rotated 90 degrees and is not aligned with the valve body, the channel is closed to prevent the flow of fluid.

[0045] The automatic plug valve 17 is based on the rotational movement of the plug body. When the control unit receives an opening or closing signal, the actuator drives the plug body to rotate a certain angle, usually 90 degrees, so that the channel on the plug body is aligned or staggered with the channel on the valve body, thereby realizing the flow or cutoff of the fluid.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control valve group suitable for a delayed coking device, comprising a check valve (1), characterized in that: A check valve interface (13) is fixedly mounted on the surface of one side of the check valve (1), a threaded hole is provided on the surface of the check valve interface (13), a threaded rod (12) is movably mounted on the side of the check valve (1) corresponding to the check valve interface (13), a check valve reinforcement rod (11) is fixedly connected to the surface of the check valve (1), a check valve valve switch (10) is fixedly mounted on the upper surface of the check valve (1), a second filling pipeline (9) is movably mounted on one side of the check valve (1), an automatic stopcock (8) is movably mounted on the surface of the second filling pipeline (9), a third filling pipeline (19) is fixedly mounted at the end of the automatic stopcock (8), and the third filling pipeline (19) is fixedly mounted on the end of the third filling pipeline (19). A water shut-off valve (7) is fixedly connected to the surface of the pipeline (19); a flow regulating valve (4) is fixedly connected to the surface of the check valve (1) adjacent to the steam trap (3); a mounting rod is fixedly installed on the surface of the flow regulating valve (4); a flow controller (14) is fixedly installed on the surface of the mounting rod; a flow display meter (15) is fixedly installed on one side of the flow controller (14); a flow regulating valve (16) is movably installed on the upper surface of the flow regulating valve (4); a first filling pipeline (6) is fixedly installed at the outlet connection of the flow regulating valve (4); and the third filling pipeline (19) is interconnected with the second filling pipeline (9) and the first filling pipeline (6).

2. A control valve group suitable for a delayed coking device according to claim 1, characterized in that: An automatic plug valve interface (18) is fixedly mounted on the upper surface of the automatic plug valve (8), and an automatic plug valve (17) is fixedly mounted on the surface of the automatic plug valve interface (18).

3. A control valve group suitable for a delayed coking device according to claim 1, characterized in that: A drain valve (3) is fixedly installed on the surface of the third filling pipeline (19) adjacent to the water cut-off valve (7).

4. A control valve group suitable for a delayed coking device according to claim 1, characterized in that: A water inlet (2) is welded on the surface of the second filling pipeline (9), and a water outlet (5) is fixedly installed on the surface of the first filling pipeline (6).

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