System for reducing C9 refining energy consumption
By adding feed preheater to the stabilizing tower system and changing to a negative pressure vacuum state, the problem of high energy consumption in industrial manufacturing is solved, and the effect of reducing energy consumption and improving economic benefits is achieved.
Patent Information
- Application Number
- CN202421368575.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The excessive energy consumption during industrial manufacturing process leads to increased environmental and economic pressures, and energy consumption needs to be reduced to improve energy utilization efficiency.
Add feed preheater to the stable tower system, and connect it to the stable tower to recover the heat of the materials produced in the tower kettle, and change the stable tower from the normal pressure state to the negative pressure vacuum state to reduce energy consumption .
The energy consumption of the stable tower is reduced, the economic benefits of system operation is improved, the energy consumption of refined carbon nine is reduced, and the economic operation efficiency of the carbon nine device is improved.
Smart Images
Figure CN222195938U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical equipment systems, and specifically relates to a system for reducing energy consumption of refined carbon nine. Background Art
[0002] With the rapid development of the global economy, the demand for industrial products is increasing day by day. However, the energy consumption in the manufacturing process is also increasing, which has caused tremendous pressure on the environment and the economy. In order to reduce the energy consumption in the industrial manufacturing process, it is necessary and important to call for the implementation of process changes to reduce energy consumption.
[0003] Improving energy utilization efficiency is one of the most effective ways to reduce energy consumption. In the industrial manufacturing process, a lot of energy is wasted, so measures should be taken to improve the production system to make it more energy-efficient in order to improve production efficiency and reduce energy consumption. Utility Model Content
[0004] The utility model aims at the above-mentioned problems, makes up for the deficiencies of the prior art, and provides a system for reducing the energy consumption of refining carbon nine; the utility model can reduce the energy consumption of the stabilizing tower and improve the economic benefits of the system operation.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions.
[0006] The utility model provides a system for reducing the energy consumption of refined carbon nine, comprising a stabilizing tower, characterized in that a feed port A of the stabilizing tower is connected to a hydrogenated carbon nine discharge port A of a feed preheater through a pipeline, a gas phase port B of the stabilizing tower is connected to a feed port E of a tower top condenser through a pipeline, a gas phase inlet Q of the stabilizing tower is connected to a gas phase outlet C of a tower bottom reboiler through a pipeline, a discharge port D of the tower top condenser is connected to a feed port A of a reflux tank through a pipeline, a liquid phase outlet B of the reflux tank is connected to an inlet pipeline of a reflux external sampling pump, a part of the outlet of the reflux external sampling pump is connected to the liquid phase inlet E of the stabilizing tower as reflux through a pipeline, and the other part enters the tank area as refined carbon nine through a pipeline, a liquid phase outlet O of the tower bottom of the stabilizing tower is connected to an inlet pipeline of a tower bottom circulating pump, and the outlet of the tower bottom circulating pump is connected to the The liquid phase inlet D of the tower kettle reboiler is connected with a pipeline, the liquid phase outlet P of the tower kettle of the stabilizing tower is connected with the inlet pipeline of the tower kettle external sampling pump, the outlet of the tower kettle external sampling pump is connected with the pipeline of the feed preheater tower kettle heavy component feed port D, the gas phase port C of the top condenser is connected with the vacuum unit pipeline, the circulating water inlet B of the tower top condenser is connected with the circulating water supply pipeline, the circulating water return port A of the tower top condenser is connected with the circulating water return pipeline, the steam inlet A of the tower kettle reboiler is connected with the high-pressure steam pipeline, the condensate outlet B of the tower kettle reboiler is connected with the steam condensate pipeline, the feed preheater hydrogenation carbon nine feed port B is connected with the feed hydrogenation carbon nine pipeline, and the feed preheater tower kettle heavy component outlet C extracts the liquid phase as the tower kettle heavy component through the pipeline into the tank area.
[0007] Furthermore, a second valve is provided on the pipeline connecting the gas phase port C of the top condenser and the vacuum unit, an eleventh valve is provided on the pipeline connecting the outlet of the reflux external procurement pump as a refined carbon nine entering the tank area, a twenty-third valve is provided on the pipeline connecting the steam inlet A of the tower bottom reboiler and the high-pressure steam, a twenty-seventh valve is provided on the pipeline connecting the outlet of the reflux external procurement pump as a reflux and the liquid phase inlet E of the stabilization tower, a thirty-ninth valve is provided on the pipeline connecting the feed port A of the stabilization tower and the hydrogenated carbon nine outlet port A of the feed preheater, a forty-third valve is provided on the pipeline connecting the outlet of the tower bottom external procurement pump and the heavy component feed port D of the feed preheater tower bottom, and the second valve, the eleventh valve, the twenty-third valve, the twenty-seventh valve, the thirty-ninth valve and the thirteenth valve are all regulating valves.
[0008] Furthermore, a first valve is provided on the pipeline in front of the second valve, a third valve is provided on the pipeline in rear of the second valve, a bypass pipeline is connected between the pipeline in front of the first valve and the pipeline in rear of the third valve, and a fourth valve is provided on the bypass pipeline; a tenth valve is provided on the pipeline in front of the eleventh valve, a twelfth valve is provided on the pipeline in rear of the eleventh valve, a bypass pipeline is connected between the pipeline in front of the tenth valve and the pipeline in rear of the twelfth valve, and a thirteenth valve is provided on the bypass pipeline; a twenty-second valve is provided on the pipeline in front of the twenty-third valve, a twenty-fourth valve is provided on the pipeline in rear of the twenty-third valve, a bypass pipeline is connected between the pipeline in front of the twenty-second valve and the pipeline in rear of the twenty-fourth valve, and a twenty-fifth valve is provided on the bypass pipeline; A twenty-sixth valve is arranged on the pipeline in front of the valve, a twenty-eighth valve is arranged on the pipeline behind the twenty-seventh valve, a bypass pipeline is connected between the pipeline in front of the twenty-sixth valve and the pipeline behind the twenty-eighth valve, and a twenty-ninth valve is arranged on the bypass pipeline; a thirty-eighth valve is arranged on the pipeline in front of the thirty-ninth valve, a fortieth valve is arranged on the pipeline behind the thirty-ninth valve, a bypass pipeline is connected between the pipeline in front of the thirty-eighth valve and the pipeline behind the fortieth valve, and a forty-first valve is arranged on the bypass pipeline; a forty-second valve is arranged on the pipeline in front of the forty-third valve, a forty-fourth valve is arranged on the pipeline behind the forty-third valve, a bypass pipeline is connected between the pipeline in front of the forty-second valve and the pipeline behind the forty-fourth valve, and a forty-fifth valve is arranged on the bypass pipeline.
[0009] Furthermore, a flow meter is provided on the pipeline in front of the tenth valve, a flow meter is provided on the pipeline in front of the twenty-sixth valve, a flow meter is provided on the pipeline in front of the twenty-second valve, and a flow meter is provided on the pipeline in front of the thirty-eighth valve.
[0010] Furthermore, a pipeline connected to the corrosion inhibitor branches out from the pipeline connecting the feed port A of the stabilization tower and the hydrogenated carbon nine discharge port A of the feed preheater.
[0011] Furthermore, a fifteenth valve is provided on the branched pipeline connected to the corrosion inhibitor, and the fifteenth valve is a regulating valve.
[0012] Furthermore, a fourteenth valve is arranged on the pipeline in front of the fifteenth valve, a sixteenth valve is arranged on the pipeline in the rear of the fifteenth valve, a bypass pipeline is connected between the pipeline in front of the fourteenth valve and the pipeline in the rear of the sixteenth valve, and a seventeenth valve is arranged on the bypass pipeline.
[0013] Furthermore, the detection port C of the stabilization tower is connected to a remote pressure gauge after passing through the 30th valve, the detection port D is connected to a remote thermometer, the detection port G is connected to a remote thermometer, the detection port F is connected to a remote pressure gauge after passing through the 31st valve, the detection port I is connected to an on-site pressure gauge after passing through the 32nd valve, the detection port J is connected to a remote pressure gauge after passing through the 33rd valve, the detection port H is connected to a remote thermometer, the detection port M is connected to a remote liquid level gauge after passing through the 34th valve, and then connected to the detection port N after passing through the 35th valve, the detection port K is connected to the on-site liquid level gauge after passing through the 36th valve, and then connected to the detection port L after passing through the 37th valve.
[0014] Furthermore, the detection port E of the reflux tank is connected to a remote pressure gauge after passing through the fifth valve, the upper port C of the on-site liquid level gauge of the reflux tank is connected to the lower port D of the on-site liquid level gauge of the reflux tank after passing through the sixth valve, the on-site liquid level gauge and the seventh valve in sequence, and the upper port F of the remote liquid level gauge of the reflux tank is connected to the lower port G of the remote liquid level gauge of the reflux tank after passing through the eighth valve, the remote liquid level gauge and the ninth valve in sequence.
[0015] Furthermore, the pipeline connecting the condensate outlet B of the tower bottom reboiler and the steam condensate is provided with an eighteenth valve and a twentieth valve, a steam trap is provided on the pipeline between the eighteenth valve and the twentieth valve, a bypass pipeline is connected between the front pipeline of the eighteenth valve and the rear pipeline of the twentieth valve, and a twenty-first valve is provided on the bypass pipeline.
[0016] The beneficial effects of the utility model.
[0017] The utility model increases a feed preheater to a stabilizing tower to recover the heat of materials extracted from the tower kettle, and changes the operation of the stabilizing tower from a normal pressure state to a negative pressure vacuum state, thereby reducing the energy consumption of the stabilizing tower and improving the economic benefits of operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.
[0019] Figure 1 It is a schematic diagram of the complete system connection structure of the utility model.
[0020] Markings in the figure: 1 is the first valve, 2 is the second valve, 3 is the third valve, 4 is the fourth valve, 5 is the fifth valve, 6 is the sixth valve, 7 is the seventh valve, 8 is the eighth valve, 9 is the ninth valve, 10 is the tenth valve, 11 is the eleventh valve, 12 is the twelfth valve, 13 is the thirteenth valve, 14 is the fourteenth valve, 15 is the fifteenth valve, 16 is the sixteenth valve, 17 is the seventeenth valve, 18 is the eighteenth valve, 19 is the steam trap, 20 is the twentieth valve, 21 is the twenty-first valve, 22 is the twenty-second valve, 23 is the twenty-third valve, 24 is the twenty-fourth valve, 25 is the twenty-fifth valve, 26 is the twenty-sixth valve, 27 is the twenty-seventh valve, 28 is the twenty-eighth valve, 29 is the twenty-ninth valve, 30 is the thirtieth valve, 31 is the thirty-first valve, 32 is the thirty-second valve, 33 is the thirty-third valve Valve, 34 is the thirty-fourth valve, 35 is the thirty-fifth valve, 36 is the thirty-sixth valve, 37 is the thirty-seventh valve, 38 is the thirty-eighth valve, 39 is the thirty-ninth valve, 40 is the fortieth valve, 41 is the forty-first valve, 42 is the forty-second valve, 43 is the forty-third valve, 44 is the forty-fourth valve, 45 is the forty-fifth valve, 46 is the stabilization tower, 47 is the feed preheater, 48 is the tower top condenser, 49 is the tower kettle reboiler, 50 is the reflux tank, 51 is the reflux external sampling pump, 52 is the refined carbon nine, 53 is the tower kettle circulating pump, 54 is the tower kettle external sampling pump, 55 is the vacuum unit, 56 is the circulating water supply, 57 is the circulating water return, 58 is the high-pressure steam, 59 is the steam condensate, 60 is the feed hydrogenated carbon nine, 61 is the tower kettle heavy component, and 62 is the corrosion inhibitor. DETAILED DESCRIPTION
[0021] As shown in the accompanying drawings, the present embodiment provides a system for reducing the energy consumption of refined carbon nine, including a stabilization tower 46, wherein the feed port A of the stabilization tower 46 is connected to the hydrogenated carbon nine outlet port A of the feed preheater 47 by pipeline, the gas phase port B of the stabilization tower 46 is connected to the feed port E of the tower top condenser 48 by pipeline, the gas phase inlet Q of the stabilization tower 46 is connected to the gas phase outlet C of the tower bottom reboiler 49 by pipeline, the outlet port D of the tower top condenser 48 is connected to the feed port A of the reflux tank 50 by pipeline, the liquid phase outlet B of the reflux tank 50 is connected to the inlet pipeline of the reflux external procurement pump 51, a part of the outlet of the reflux external procurement pump 51 is connected to the liquid phase inlet E of the stabilization tower 46 through a pipeline as reflux, and the other part enters the tank area as refined carbon nine 52 through a pipeline, the liquid phase outlet O of the tower bottom of the stabilization tower 46 is connected to the inlet pipeline of the tower bottom circulation pump 53, and the outlet of the tower bottom circulation pump 53 is connected to The liquid phase inlet D of the tower bottom reboiler 49 is connected by pipeline, the liquid phase outlet P of the tower bottom of the stabilization tower 46 is connected by pipeline to the inlet of the tower bottom external sampling pump 54, the outlet of the tower bottom external sampling pump 54 is connected by pipeline to the feed port D of the tower bottom heavy component of the feed preheater 47, the gas phase port C of the tower top condenser 48 is connected by pipeline to the vacuum unit 55, the circulating water inlet B of the tower top condenser 48 is connected by pipeline to the circulating water supply 56, the circulating water return port A of the tower top condenser 48 is connected by pipeline to the circulating water return 57, the steam inlet A of the tower bottom reboiler 49 is connected by pipeline to the high-pressure steam 58, the condensate outlet B of the tower bottom reboiler 49 is connected by pipeline to the steam condensate 59, the feed port B of the hydrogenated carbon nine of the feed preheater 47 is connected by pipeline to the feed hydrogenated carbon nine 60, and the liquid phase extracted from the tower bottom heavy component outlet C of the feed preheater 47 enters the tank area as the tower bottom heavy component 61 through the pipeline.
[0022] The feed preheater 47, the top condenser 48 and the reboiler adopt fixed tube plate heat exchangers. The heat exchange medium used by the feed preheater 47 is the mutual heat exchange between the hydrogenated carbon nine 60 of the feed of the stabilization tower 46 and the output from the bottom of the stabilization tower 46. The heat exchange medium of the top condenser 48 adopts circulating water, and the heat exchange medium of the reboiler is high-pressure steam 58.
[0023] A second valve 2 is provided on the pipeline connecting the gas phase port C of the top condenser 48 and the vacuum unit 55, an eleventh valve 11 is provided on the pipeline connecting the outlet of the reflux external procurement pump 51 as a pipeline for the refined carbon nine 52 to enter the tank area, a twenty-third valve 23 is provided on the pipeline connecting the steam inlet A of the tower bottom reboiler 49 and the high-pressure steam 58, a twenty-seventh valve 27 is provided on the pipeline connecting the outlet of the reflux external procurement pump 51 as reflux and the liquid phase inlet E of the stabilization tower 46, a thirty-ninth valve 39 is provided on the pipeline connecting the feed port A of the stabilization tower 46 and the hydrogenated carbon nine outlet A of the feed preheater 47, and a forty-third valve 43 is provided on the pipeline connecting the outlet of the tower bottom external procurement pump 54 and the feed port D of the heavy component of the tower bottom of the feed preheater 47.
[0024] Among them, the second valve 2, the eleventh valve 11, the twenty-third valve 23, the twenty-seventh valve 27, the thirty-ninth valve 39 and the thirteenth valve 13 are all regulating valves.
[0025] A first valve 1 is arranged on the pipeline in front of the second valve 2, a third valve 3 is arranged on the pipeline in rear of the second valve 2, a bypass pipeline is connected between the pipeline in front of the first valve 1 and the pipeline in rear of the third valve 3, and a fourth valve 4 is arranged on the bypass pipeline; a tenth valve 10 is arranged on the pipeline in front of the eleventh valve 11, a twelfth valve 12 is arranged on the pipeline in rear of the eleventh valve 11, a bypass pipeline is connected between the pipeline in front of the tenth valve 10 and the pipeline in rear of the twelfth valve 12, and a thirteenth valve 13 is arranged on the bypass pipeline; a twenty-second valve 22 is arranged on the pipeline in front of the twenty-third valve 23, a twenty-fourth valve 24 is arranged on the pipeline in rear of the twenty-third valve 23, a bypass pipeline is connected between the pipeline in front of the twenty-second valve 22 and the pipeline in rear of the twenty-fourth valve 24, and a twenty-fifth valve 25 is arranged on the bypass pipeline; a twenty-seventh valve 27 is arranged on the pipeline in front of the twenty-seventh valve 27 A twenty-sixth valve 26 is arranged on the pipeline, a twenty-eighth valve 28 is arranged on the rear pipeline of the twenty-seventh valve 27, a bypass pipeline is connected between the front pipeline of the twenty-sixth valve 26 and the rear pipeline of the twenty-eighth valve 28, and a twenty-ninth valve 29 is arranged on the bypass pipeline; a thirty-eighth valve 38 is arranged on the front pipeline of the thirty-ninth valve 39, a fortieth valve 40 is arranged on the rear pipeline of the thirty-ninth valve, a bypass pipeline is connected between the front pipeline of the thirty-eighth valve 38 and the rear pipeline of the fortieth valve 40, and a forty-first valve 41 is arranged on the bypass pipeline; a forty-second valve 42 is arranged on the front pipeline of the forty-third valve 43, a forty-fourth valve 44 is arranged on the rear pipeline of the forty-third valve, a bypass pipeline is connected between the front pipeline of the forty-second valve 42 and the rear pipeline of the forty-fourth valve 44, and a forty-fifth valve 45 is arranged on the bypass pipeline.
[0026] A flow meter FIC is provided on the pipeline in front of the tenth valve 10, a flow meter FIC is provided on the pipeline in front of the twenty-sixth valve 26, a flow meter FIC is provided on the pipeline in front of the twenty-second valve 22, and a flow meter FIC is provided on the pipeline in front of the thirty-eighth valve 38. The detection signal output port of each flow meter FIC is connected to the detection signal input port of the central control room.
[0027] A pipeline connected to the corrosion inhibitor 62 branches out from the pipeline connecting the feed port A of the stabilization tower 46 and the hydrogenated carbon nine discharge port A of the feed preheater 47. The corrosion inhibitor 62 is mixed with the feed hydrogenated carbon nine 60 and then enters the stabilization tower 46. The corrosion inhibitor 62 plays a role in protecting the equipment from corrosion.
[0028] A fifteenth valve 15 is provided on the branched pipeline connected to the corrosion inhibitor 62, and the fifteenth valve 15 is a regulating valve. A fourteenth valve 14 is provided on the pipeline in front of the fifteenth valve 15, a sixteenth valve 16 is provided on the pipeline in the rear of the fifteenth valve 15, a bypass pipeline is connected between the pipeline in front of the fourteenth valve 14 and the pipeline in the rear of the sixteenth valve 16, and a seventeenth valve 17 is provided on the bypass pipeline.
[0029] The detection port C of the stabilization tower 46 is connected to the remote pressure gauge PI after passing through the 30th valve 30, the detection port D is connected to the remote thermometer TI, the detection port G is connected to the remote thermometer TI, the detection port F is connected to the remote pressure gauge PI after passing through the 31st valve 31, the detection port I is connected to the on-site pressure gauge PG after passing through the 32nd valve 32, the detection port J is connected to the remote pressure gauge PI after passing through the 33rd valve 33, the detection port H is connected to the remote thermometer TI, the detection port M is connected to the remote liquid level gauge LI after passing through the 34th valve 34, and then connected to the detection port N after passing through the 35th valve 35, the detection port K is connected to the on-site liquid level gauge LG after passing through the 37th valve 37.
[0030] The on-site pressure gauge PG and the on-site liquid level gauge LG carry out on-site indexing, and the detection signal output ports of the remote thermometer TI, remote pressure gauge PI and remote liquid level gauge LI are all connected to the output port of the central control room.
[0031] The remote thermometer TI is used to monitor the internal temperature of the refining tower and feed the temperature back to the central control room. The remote pressure gauge PI is used to monitor the internal pressure of the refining tower and feed the pressure back to the central control room. The temperature and pressure represent the operating status of the refining tower. Observation at multiple positions facilitates the control of product quality.
[0032] The remote level meter LI is used to monitor the liquid level at the bottom of the separation tower and feed the liquid level back to the central control room to ensure that the tower system operates at an appropriate liquid level so that the tower system can obtain heat intact, thereby ensuring that the product meets the standards.
[0033] The detection port E of the reflux tank 50 is connected to the remote pressure gauge PI after passing through the fifth valve 5, the upper port C of the on-site liquid level gauge of the reflux tank 50 is connected to the lower port D of the on-site liquid level gauge of the reflux tank 50 after passing through the sixth valve 6, the on-site liquid level gauge LG and the seventh valve 7 in sequence, and the upper port F of the remote liquid level gauge of the reflux tank 50 is connected to the lower port G of the remote liquid level gauge of the reflux tank 50 after passing through the eighth valve 8, the remote liquid level gauge LI and the ninth valve 9 in sequence.
[0034] The detection signal output ports of the remote liquid level gauge LI and the remote pressure gauge PI connected to the reflux tank 50 are connected to the detection signal input port of the central control room.
[0035] The pipeline connecting the condensate outlet B of the tower bottom reboiler 49 and the steam condensate 59 is provided with the eighteenth valve 18 and the twentieth valve 20, the steam trap 19 is provided on the pipeline between the eighteenth valve 18 and the twentieth valve 20, a bypass pipeline is connected between the front pipeline of the eighteenth valve 18 and the rear pipeline of the twentieth valve 20, and the twenty-first valve 21 is provided on the bypass pipeline.
[0036] When in use, the hydrogenated carbon nine enters the stabilization tower 46, and is sent to the reboiler for heating through the bottom circulation pump 53 of the stabilization tower 46. The heated hydrogenated carbon nine forms a gas phase and returns to the stabilization tower 46 and rises to the top of the stabilization tower 46. After condensation by the top condenser 48, the condensate enters the reflux tank 50, and the non-condensable gas enters the vacuum unit 55; the liquid phase in the reflux tank 50 enters the reflux external sampling pump 51, a part of it returns to the stabilization tower 46 as the tower system reflux, and the other part enters the product tank area as the refined carbon nine 52; the bottom material of the stabilization tower 46 passes through the bottom sampling pump 54 to exchange heat between the bottom heavy component 61 and the feed and then enters the tank area.
[0037] Since a feed preheater 47 is added during the processing of the stabilization tower 46 and the traditional normal pressure operation can be changed to vacuum operation, the energy consumption during the processing of the refined carbon nine 52 is reduced, and the economic operation of the carbon nine device is further increased.
[0038] In the utility model patent, an inlet and outlet preheater is added to the processing process of the stabilization tower 46, and the normal pressure operation is changed to vacuum operation, which reduces the energy consumption in the processing process of the refined carbon nine 52 and further increases the economic operation of the carbon nine device.
[0039] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the implementation mode of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.
Claims
1. A system for reducing energy consumption in refining carbon nine, comprising a stabilization tower (46), characterized in that: The feed port A of the stabilization tower (46) is connected to the hydrogenated carbon nine outlet port A of the feed preheater (47) through a pipeline, the gas phase port B of the stabilization tower (46) is connected to the feed port E of the top condenser (48) through a pipeline, the gas phase inlet Q of the stabilization tower (46) is connected to the gas phase outlet C of the bottom reboiler (49) through a pipeline, the outlet port D of the top condenser (48) is connected to the feed port A of the reflux tank (50) through a pipeline, and the liquid phase outlet B of the reflux tank (50) is connected to the reflux tank (50) through a pipeline. The reflux pump (51) is connected to the inlet pipeline of the reflux pump (51), a part of the outlet of the reflux pump (51) is connected to the liquid phase inlet E of the stabilization tower (46) through a pipeline as reflux, and the other part enters the tank area through a pipeline as refined carbon nine (52), the bottom liquid phase outlet O of the stabilization tower (46) is connected to the inlet pipeline of the bottom circulating pump (53), the bottom circulating pump (53) outlet is connected to the liquid phase inlet D of the bottom reboiler (49), and the stabilization tower (46) is connected to the bottom liquid phase outlet O of the bottom circulating pump (53). The tower bottom liquid phase outlet P of the fixed tower (46) is connected to the inlet pipeline of the tower bottom external sampling pump (54), the tower bottom external sampling pump (54) outlet is connected to the tower bottom heavy component feed port D of the feed preheater (47) through a pipeline, the tower top condenser (48) gas phase port C is connected to the vacuum unit (55) pipeline, the tower top condenser (48) circulating water inlet B is connected to the circulating water supply (56) pipeline, the tower top condenser (48) circulating water return port A is connected to the circulating water supply (56) pipeline, and the tower top condenser (48) circulating water return port A is connected to the circulating water supply (56) pipeline. The circulating water return (57) pipeline is connected, the steam inlet A of the tower bottom reboiler (49) is connected to the high-pressure steam (58) pipeline, the condensate outlet B of the tower bottom reboiler (49) is connected to the steam condensate (59) pipeline, the feed preheater (47) hydrogenated carbon nine feed port B is connected to the feed hydrogenated carbon nine (60) pipeline, and the feed preheater (47) tower bottom heavy component outlet C extracts the liquid phase as the tower bottom heavy component (61) through the pipeline into the tank area.
2. A system for reducing energy consumption of refined carbon nine according to claim 1, characterized in that: A second valve (2) is provided on the pipeline connecting the gas phase port C of the top condenser (48) and the vacuum unit (55), an eleventh valve (11) is provided on the pipeline connecting the outlet of the reflux external sampling pump (51) as a reflux to the refined carbon nine (52) entering the tank area, a twenty-third valve (23) is provided on the pipeline connecting the steam inlet A of the tower bottom reboiler (49) and the high-pressure steam (58), and a twenty-third valve (23) is provided on the pipeline connecting the outlet of the reflux external sampling pump (51) as a reflux to the liquid phase inlet E of the stabilization tower (46). Seven valves (27), a thirty-ninth valve (39) is provided on the pipeline connecting the feed port A of the stabilization tower (46) and the hydrogenated carbon nine discharge port A of the feed preheater (47), a forty-third valve (43) is provided on the pipeline connecting the outlet of the tower bottom external sampling pump (54) and the heavy component feed port D of the tower bottom of the feed preheater (47), and the second valve (2), the eleventh valve (11), the twenty-third valve (23), the twenty-seventh valve (27), the thirty-ninth valve (39) and the thirteenth valve (13) are all regulating valves.
3. A system for reducing energy consumption of refined carbon nine according to claim 2, characterized in that: A first valve (1) is arranged on the pipeline in front of the second valve (2), a third valve (3) is arranged on the pipeline in the rear of the second valve (2), a bypass pipeline is connected between the pipeline in front of the first valve (1) and the pipeline in the rear of the third valve (3), and a fourth valve (4) is arranged on the bypass pipeline; a tenth valve (10) is arranged on the pipeline in front of the eleventh valve (11), a twelfth valve (12) is arranged on the pipeline in the rear of the eleventh valve (11), and the pipeline in front of the tenth valve (10) is connected to the first valve (11). A bypass pipeline is connected between the rear pipeline of the twelfth valve (12), and a thirteenth valve (13) is arranged on the bypass pipeline; a twenty-second valve (22) is arranged on the front pipeline of the twenty-third valve (23), a twenty-fourth valve (24) is arranged on the rear pipeline of the twenty-third valve (23), a bypass pipeline is connected between the front pipeline of the twenty-second valve (22) and the rear pipeline of the twenty-fourth valve (24), and a twenty-fifth valve (25) is arranged on the bypass pipeline; a twenty-sixth valve (26) is arranged on the front pipeline of the twenty-seventh valve (27), a twenty-eighth valve (28) is arranged on the rear pipeline of the twenty-seventh valve (27), a bypass pipeline is connected between the front pipeline of the twenty-sixth valve (26) and the rear pipeline of the twenty-eighth valve (28), and a twenty-ninth valve (29) is arranged on the bypass pipeline; a thirty-eighth valve (38) is arranged on the front pipeline of the thirty-ninth valve (39), a fortieth valve (40) is arranged on the rear pipeline of the thirty-ninth valve (39), and a twenty-third valve (41) is arranged on the rear pipeline of the thirty-ninth valve (39). A bypass pipeline is connected between the front pipeline of the eighteenth valve (38) and the rear pipeline of the fortieth valve (40), and a forty-first valve (41) is arranged on the bypass pipeline; a forty-second valve (42) is arranged on the front pipeline of the forty-third valve (43), and a forty-fourth valve (44) is arranged on the rear pipeline of the forty-third valve; a bypass pipeline is connected between the front pipeline of the forty-second valve (42) and the rear pipeline of the forty-fourth valve (44), and a forty-fifth valve (45) is arranged on the bypass pipeline.
4. A system for reducing energy consumption of refined carbon nine according to claim 3, characterized in that: A flow meter is provided on the pipeline in front of the tenth valve (10), a flow meter is provided on the pipeline in front of the twenty-sixth valve (26), a flow meter is provided on the pipeline in front of the twenty-second valve (22), and a flow meter is provided on the pipeline in front of the thirty-eighth valve (38).
5. A system for reducing energy consumption of refined carbon nine according to claim 1, characterized in that: A pipeline connected to the corrosion inhibitor (62) branches out from the pipeline connecting the feed port A of the stabilization tower (46) and the hydrogenated carbon nine discharge port A of the feed preheater (47).
6. A system for reducing energy consumption of refined carbon nine according to claim 5, characterized in that: A fifteenth valve (15) is provided on the branched pipeline connected to the corrosion inhibitor (62), and the fifteenth valve (15) is a regulating valve.
7. A system for reducing energy consumption of refined carbon nine according to claim 6, characterized in that: A fourteenth valve (14) is arranged on the pipeline in front of the fifteenth valve (15), a sixteenth valve (16) is arranged on the pipeline in the rear of the fifteenth valve (15), a bypass pipeline is connected between the pipeline in front of the fourteenth valve (14) and the pipeline in the rear of the sixteenth valve (16), and a seventeenth valve (17) is arranged on the bypass pipeline.
8. A system for reducing energy consumption of refined carbon nine according to claim 1, characterized in that: The detection port C of the stabilization tower (46) is connected to a remote pressure gauge after passing through a 30th valve (30), the detection port D is connected to a remote thermometer, the detection port G is connected to a remote thermometer, the detection port F is connected to a remote pressure gauge after passing through a 31st valve (31), the detection port I is connected to an on-site pressure gauge after passing through a 32nd valve (32), the detection port J is connected to a remote pressure gauge after passing through a 33rd valve (33), the detection port H is connected to a remote thermometer, the detection port M is connected to a remote liquid level gauge after passing through a 34th valve (34), and then connected to the detection port N after passing through a 35th valve (35), the detection port K is connected to an on-site liquid level gauge after passing through a 36th valve (36), and then connected to the detection port L after passing through a 37th valve (37).
9. A system for reducing energy consumption of refined carbon nine according to claim 1, characterized in that: The detection port E of the reflux tank (50) is connected to a remote pressure gauge after passing through a fifth valve (5); the upper port C of the on-site liquid level gauge of the reflux tank (50) is connected to a lower port D of the on-site liquid level gauge of the reflux tank (50) after passing through a sixth valve (6), the on-site liquid level gauge and a seventh valve (7); the upper port F of the remote liquid level gauge of the reflux tank (50) is connected to a lower port G of the remote liquid level gauge of the reflux tank (50) after passing through an eighth valve (8), the remote liquid level gauge and a ninth valve (9).
10. A system for reducing energy consumption of refined carbon nine according to claim 1, characterized in that: The pipeline connecting the condensate outlet B of the tower bottom reboiler (49) and the steam condensate (59) is provided with an eighteenth valve (18) and a twentieth valve (20), a steam trap (19) is provided on the pipeline between the eighteenth valve (18) and the twenty-third valve (20), a bypass pipeline is connected between the front pipeline of the eighteenth valve (18) and the rear pipeline of the twenty-third valve (20), and a twenty-first valve (21) is provided on the bypass pipeline.