Horizontal tube primary cooler lower section coke supplement system

Abstract

The utility model belongs to coking horizontal tube primary cooler technical field relates to a horizontal tube primary cooler lower section make up tar system including control system and tar pump, and tar pump is connected with mixed pipeline through tar pipeline, and mixed pipeline is connected with condensate pump export pipeline, and condensate pump export pipeline is connected with condensate pump, and the automatic regulating valve that is linked with control system is equipped on tar pipeline, and first valve and second valve are equipped respectively before and after the automatic regulating valve, and the side branch tar pipeline is connected on the tar pipeline before first valve and after second valve, and third valve is equipped on side branch tar pipeline, and first flowmeter is equipped on mixed pipeline. The utility model realizes automatic regulation, and make up tar flow is stable, and the process index is stable after horizontal tube primary cooler, effectively reduces the process index out of range phenomenon, and solves the problem of artificial frequent regulation make up tar flow simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of coking horizontal tube primary coolers, and relates to a tar replenishment system for the lower section of a horizontal tube primary cooler. Background Technology

[0002] The tar replenishment device in the lower section of the horizontal tube primary cooler is manually adjustable. Because the tar replenishment in the lower section of the primary cooler requires a fixed amount, the manually adjustable valve opening is small, making it very easy to get clogged. This results in unstable tar replenishment flow, affecting the process parameters after the primary cooler, and requires frequent manual adjustments.

[0003] A Chinese invention patent with publication number CN103254943B describes a pre-cooling process and apparatus for the lower section of a horizontal tube primary cooler, comprising a replenishing liquid cooler, a condensate tank, a condensate pump, a replenishing liquid delivery pipeline, a circulating water delivery pipeline, and a lower section spray liquid delivery pipeline. The replenishing liquid cooler is located outside the horizontal tube primary cooler. The inlet of the replenishing liquid cooler is connected to the replenishing liquid delivery pipeline of the tar-ammonia-water separation device, and the outlet of the hot medium is connected to the condensate tank via the replenishing liquid delivery pipeline.

[0004] The existing technology has the following technical defects:

[0005] The above technical solution uses an external replenishing fluid cooler and circulating water to pre-cool the replenishing fluid, which reduces the temperature of the replenishing fluid, but it cannot solve the problem of easy clogging when replenishing tar. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tar replenishment system for the lower section of a horizontal tube primary cooler.

[0007] The tar replenishment system for the lower section of the horizontal tube primary cooler described in this utility model includes a control system and a tar pump. The tar pump is connected to a mixing pipe via a tar pipeline, and the mixing pipe is connected to a condensate pump outlet pipe. The condensate pump outlet pipe is connected to a condensate pump. An automatic regulating valve connected to the control system is installed on the tar pipeline. A first valve and a second valve are respectively installed before and after the automatic regulating valve. A side tar pipeline is connected to the tar pipeline before and after the first valve and the second valve. A third valve is installed on the side tar pipeline. A first flow meter is installed on the mixing pipeline. When the flow rate changes in the first flow meter, the automatic regulating valve can be inspected, the first and second valves can be closed, and the third valve can be opened to cut off the flow in the tar pipeline. This allows the tar to flow into the mixing pipeline through the side tar pipeline and mix with the condensate in the condensate pump outlet pipe before flowing into the lower section of the primary cooler.

[0008] It also includes an emulsion pump, which is connected to the mixing pipeline via an emulsion pipeline. The emulsion pipeline is located in front of the junction of the tar pipeline and the mixing pipeline and is equipped with an emulsion valve. Depending on the process, the emulsion is mixed into the tar to meet the requirements of different processes.

[0009] The emulsion valve is a regulating valve that can be controlled by a control system. The control system controls the emulsion valve to achieve precise control of the opening and closing angle, thereby controlling the flow rate of the emulsion.

[0010] A second flow meter is installed between the second valve and the automatic regulating valve. The second flow meter is connected to the control system. The second flow meter can monitor whether the flow in the tar pipeline is sufficient in a timely manner, avoiding the misjudgment that the flow has not decreased due to the mixture of emulsion and tar passing through the first flow meter. The second flow meter can also be used to observe whether the automatic regulating valve is blocked in the first instance.

[0011] The tar pipeline is equipped with a flushing component adapted to the automatic regulating valve. When the automatic regulating valve becomes blocked, the tar continues to flow through the side branch pipeline, and the flushing component is used to flush the blocked area.

[0012] The flushing assembly includes an inlet pipe located in front of the first valve and an outlet pipe located behind the second valve. The inlet pipe and the outlet pipe are respectively equipped with a third valve and a fourth valve. When flushing is required, the third valve and the fourth valve are opened, and the inlet pipe and the outlet pipe are connected to the water source and the collector respectively for flushing, thereby clearing the blockage of the automatic regulating valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention achieves automatic adjustment and stable tar replenishment flow; the process parameters after the horizontal tube primary cooler are stable, effectively reducing the phenomenon of process parameters exceeding the range, and at the same time solving the problem of frequent manual adjustment of tar replenishment flow. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0016] In the diagram: 1. Tar pump; 2. Tar pipeline; 3. First valve; 4. Side tar pipeline; 5. Fourth valve; 6. Water inlet pipe; 7. Automatic regulating valve; 8. Third valve; 9. Water outlet pipe; 10. Fifth valve; 11. Second flow meter; 12. Second valve; 13. Emulsion pump; 14. Emulsion pipeline; 15. Emulsion valve; 16. First flow meter; 17. Condensate pump; 18. Mixing pipeline; 19. Condensate pump outlet pipeline. Detailed Implementation

[0017] Example 1

[0018] like Figure 1 As shown, the tar replenishment system for the lower section of the horizontal tube primary cooler of this utility model includes a control system and a tar pump 1. The tar pump 1 is connected to a mixing pipe 18 via a tar pipe 2. The mixing pipe 18 is connected to a condensate pump outlet pipe 19. The condensate pump outlet pipe 19 is connected to a condensate pump 17. An automatic regulating valve 7 connected to the control system is provided on the tar pipe 2. A first valve 3 and a second valve 12 are respectively provided before and after the automatic regulating valve 7. A side tar pipe 4 is connected to the tar pipe 2 before the first valve 3 and after the second valve 12. A third valve 8 is provided on the side tar pipe 4. A first flow rate is provided on the mixing pipe 18. 16. When the flow rate changes in the first flow meter 16, the automatic regulating valve 7 can be inspected, the first valve 3 and the second valve 12 can be closed, and the third valve 8 can be opened to cut off the flow in the tar pipeline 2, allowing the tar to flow into the mixing pipeline 18 through the side tar pipeline 4 and mix with the condensate in the condensate pump outlet pipeline 19, and then flow into the lower section of the primary cooler; it also includes an emulsion pump 13, which is connected to the mixing pipeline 18 through an emulsion pipeline 14. An emulsion valve 15 is provided in front of the connection between the tar pipeline 2 and the mixing pipeline 18 in the emulsion pipeline 14. Depending on the process, emulsion is mixed into the tar. This allows for the fulfillment of different process requirements. The emulsion valve 15 is a regulating valve that can be controlled by a control system. The control system precisely controls the opening and closing angle of the emulsion valve 15, thereby controlling the flow rate of the emulsion. A second flow meter 11 is installed between the second valve 12 and the automatic regulating valve 7. The second flow meter 11 is connected to the control system. The second flow meter 11 can monitor whether the flow rate in the tar pipeline 2 is sufficient in a timely manner, avoiding the misjudgment that the flow rate has not decreased due to the mixture of emulsion and tar passing through the first flow meter 16. The second flow meter 11 can also be used to observe whether the automatic regulating valve 7 is blocked in a timely manner. The tar pipeline 2 is equipped with a flushing assembly adapted to the automatic regulating valve 7. When the automatic regulating valve 7 is blocked, the tar continues to flow through the side branch tar pipeline 4, and the flushing assembly flushes the blocked area. The flushing assembly includes an inlet pipe 6 located in front of the first valve 3 and an outlet pipe 9 located behind the second valve 12. The inlet pipe 6 and the outlet pipe 9 are respectively equipped with a fourth valve 5 and a fifth valve 10. When flushing is required, the fourth valve 5 and the fifth valve 10 are opened, and the inlet pipe 6 and the outlet pipe 9 are connected to the water source and the collector respectively for flushing, thereby clearing the blockage of the automatic regulating valve 7.

[0019] Working process or working principle:

[0020] When the flow rate changes in the first flow meter 16, the automatic regulating valve 7 can be inspected. The first valve 3 and the second valve 12 are closed, and the third valve 8 is opened to cut off the flow in the tar pipeline 2. This allows the tar to flow into the mixing pipeline 18 through the bypass tar pipeline 4 and mix with the condensate from the condensate pump outlet pipeline 19 before flowing into the lower section of the primary cooler. If there is a process requirement to mix in emulsion, the second flow meter 11 should be monitored. The second flow meter 11 can monitor whether the flow rate in the tar pipeline 2 is sufficient, avoiding the misjudgment that the flow rate has not decreased due to the mixing of emulsion and tar and passing through the first flow meter 16. The second flow meter 11 can also be used to immediately observe whether the automatic regulating valve 7 is blocked. If a blockage occurs, the tar should continue to flow through the bypass pipeline. Then, the fourth valve 5 and the fifth valve 10 should be opened, and the inlet pipe 6 and the outlet pipe 9 should be connected to the water source and the collector respectively for flushing, thereby clearing the blockage in the automatic regulating valve 7.

[0021] This invention achieves automatic adjustment and stable tar replenishment flow; the process parameters after the horizontal tube primary cooler are stable, effectively reducing the phenomenon of process parameters exceeding the range, and at the same time solving the problem of frequent manual adjustment of tar replenishment flow.

[0022] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A tar replenishment system for the lower section of a horizontal tube primary cooler, characterized in that: The system includes a control system and a tar pump (1). The tar pump (1) is connected to a mixing pipe (18) through a tar pipe (2). The mixing pipe (18) is connected to a condensate pump outlet pipe (19). The condensate pump outlet pipe (19) is connected to a condensate pump (17). An automatic regulating valve (7) connected to the control system is provided on the tar pipe (2). A first valve (3) and a second valve (12) are provided before and after the automatic regulating valve, respectively. A side branch tar pipe (4) is connected to the tar pipe (2) before the first valve (3) and after the second valve (12). A third valve (8) is provided on the side branch tar pipe (4). A first flow meter (16) is provided on the mixing pipe (18).

2. The tar replenishment system for the lower section of the horizontal tube primary cooler according to claim 1, characterized in that: It also includes an emulsion pump (13), which is connected to the mixing pipe (18) through an emulsion pipe (14). An emulsion valve (15) is provided in front of the connection between the tar pipe (2) and the mixing pipe (18) of the emulsion pipe (14).

3. The tar replenishment system for the lower section of the horizontal tube primary cooler according to claim 2, characterized in that: The emulsion valve (15) is a regulating valve that can be controlled by a control system.

4. The tar replenishment system for the lower section of the horizontal tube primary cooler according to any one of claims 1-3, characterized in that: A second flow meter (11) is provided between the second valve (12) and the automatic regulating valve (7), and the second flow meter (11) is connected to the control system.

5. The tar replenishment system for the lower section of the horizontal tube primary cooler according to claim 4, characterized in that: The tar pipeline (2) is equipped with a flushing assembly adapted to the automatic regulating valve (7).

6. The tar replenishment system for the lower section of the horizontal tube primary cooler according to claim 5, characterized in that: The flushing assembly includes an inlet pipe (6) located in front of the first valve (3) and an outlet pipe (9) located behind the second valve (12). The inlet pipe (6) and the outlet pipe (9) are respectively equipped with a fourth valve (5) and a fifth valve (10).

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