A crude oil transportation system and a control method thereof

Abstract

The application discloses a crude oil conveying system and a control method thereof, which comprises a water jacket furnace, a gas film drag reduction pipeline and a new energy power generation unit; wherein the water jacket furnace is provided with a crude oil heat exchanger and a gas heat exchanger; the crude oil heat exchanger is connected with an oil pipeline of the gas film drag reduction pipeline; the gas heat exchanger is connected with a gas pipeline of the gas film drag reduction pipeline; the new energy power generation unit can be independently installed around the water jacket furnace and the gas film drag reduction pipeline, or the water jacket furnace and the gas film drag reduction pipeline share one new energy power generation unit or are connected with a new energy power grid. The application realizes the reduction of carbon emission and the improvement of crude oil conveying efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of crude oil transportation, in particular to a crude oil transportation system and a control method thereof. BACKGROUND

[0002] The water jacket furnace currently applied mostly uses petrochemical fuel as a combustion heat source to provide a heat source for crude oil transportation to reduce the viscosity coefficient of crude oil and ensure the transportation of crude oil. The purpose of the water jacket furnace is to pressurize and heat crude oil to be transported from an oil field to a refinery, a wharf, etc. through a pipeline. Due to the characteristics of crude oil, the viscosity coefficient of crude oil, the length of the pipeline, the diameter of the pipeline, the temperature of crude oil, the pressure, and other factors affect the pipeline transmission resistance of crude oil, the temperature and pressure loss of crude oil, and even cause the pipeline to freeze.

[0003] In order to reduce the pipeline transmission resistance of crude oil, the industry mostly uses a pressurizing station and a water jacket furnace to heat and pressurize crude oil to provide kinetic energy for crude oil to overcome the geographical difference along the line and the pressure loss along the pipeline. Heating is a measure taken for "three high" crude oil with high wax content, high freezing point, and high viscosity. The purpose is to keep the temperature of crude oil in the pipeline above the freezing point or a higher temperature to make crude oil flow smoothly. Crude oil mostly has the properties of high viscosity and high freezing point. The heating transportation process is a commonly used transportation process for crude oil pipelines.

[0004] However, the water jacket furnace currently applied mostly uses petrochemical fuel as a combustion heat source. The combustion of petrochemical fuel increases carbon emissions. In addition, the heating transportation of crude oil pipelines also has heat loss and friction loss. Due to the high temperature of the oil flow and the ambient temperature around the pipeline, there is a radial temperature difference. The heat energy carried by the hot oil will continuously be lost to the outside of the pipeline, so that the temperature gradually decreases during the forward transportation process, causing axial heat loss, the temperature of the oil flow decreases, the viscosity increases, and the pressure drop of the pipeline per unit length gradually increases, which is prone to pipeline accidents.

[0005] Based on the above, there is an urgent need for a new method that can effectively reduce carbon emissions and improve the efficiency of crude oil transportation.

[0006] It should be noted that the above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0007] The main purpose of the present application is to provide a crude oil transportation system and a control method thereof, which aims to reduce carbon emissions and improve the efficiency of crude oil transportation.

[0008] In order to achieve the above object, the present application provides a crude oil conveying system, comprising a water jacket furnace, a gas film drag reduction pipeline and a new energy power generation unit; wherein the water jacket furnace is provided with a crude oil heat exchanger and a gas heat exchanger, the crude oil heat exchanger is connected with an oil pipeline of the gas film drag reduction pipeline, and the gas heat exchanger is connected with a gas pipeline of the gas film drag reduction pipeline.

[0009] The new energy power generation unit can be independently installed at the periphery of the water jacket furnace and the gas film drag reduction pipeline, or the water jacket furnace and the gas film drag reduction pipeline share one new energy power generation unit or are connected to a new energy power grid.

[0010] Optionally, the water jacket furnace comprises a heating and heat storage tank body, the inside of the heating and heat storage tank body is sequentially provided from bottom to top with a crude oil heat exchange chamber, a low-temperature heat storage chamber, a water body heating chamber, a gas heat exchange chamber and a high-temperature heat storage chamber, wherein the crude oil heat exchange chamber, the low-temperature heat storage chamber, the water body heating chamber, the gas heat exchange chamber and the high-temperature heat storage chamber are mutually isolated by an adiabatic material insulation layer; and the crude oil heat exchange chamber, the low-temperature heat storage chamber, the water body heating chamber, the gas heat exchange chamber and the high-temperature heat storage chamber are respectively provided with a temperature control valve, and the heat conducting medium is water; the water body heating chamber is provided with a water electrode heating unit and an auxiliary gas heating unit, the crude oil heat exchanger is arranged in the crude oil heat exchange chamber, and the gas heat exchanger is arranged in the gas heat exchange chamber; the heating and heat storage tank body is arranged in the middle of the gas film drag reduction pipeline line.

[0011] Optionally, the water electrode heating unit adopts a maximum power tracking technology, and comprises a movable water electrode and a fixed water electrode; on the basis of the maximum power tracking technology, the heating power of the water electrode heating unit can be changed by controlling and adjusting the distance between the movable water electrode and the fixed water electrode.

[0012] Optionally, the water electrode heating unit further comprises a water electrode driving mechanism connected with the movable water electrode; under the driving action of the water electrode driving mechanism, the movable water electrode can move close to or away from the fixed water electrode.

[0013] Optionally, the auxiliary gas heating unit is arranged below the water electrode heating unit, one end of the auxiliary gas heating unit is a gas heating inlet, and the other end of the auxiliary gas heating unit is a gas heating outlet.

[0014] Optionally, a first pipeline is arranged between the crude oil heat exchange chamber and the low-temperature heat storage chamber, the first pipeline is installed on the heat insulation layer between the crude oil heat exchange chamber and the low-temperature heat storage chamber, and water circulation between the crude oil heat exchange chamber and the low-temperature heat storage chamber is established through the first pipeline; a first temperature control valve is arranged on the first pipeline, and the first temperature control valve is arranged in the crude oil heat exchange chamber.

[0015] A second pipeline is arranged between the low-temperature heat storage chamber and the water body heating chamber, the second pipeline is installed on the heat insulation layer between the low-temperature heat storage chamber and the water body heating chamber, and water circulation between the low-temperature heat storage chamber and the water body heating chamber is established through the second pipeline; a second temperature control valve is arranged on the second pipeline, and the second temperature control valve is arranged in the low-temperature heat storage chamber.

[0016] A third pipeline is arranged between the high-temperature heat storage chamber and the water body heating chamber, the third pipeline is installed on the heat insulation layer between the gas heat exchange chamber and the water body heating chamber and between the gas heat exchange chamber and the high-temperature heat storage chamber, and water circulation between the high-temperature heat storage chamber and the water body heating chamber is established through the third pipeline; a third temperature control valve is arranged on the third pipeline, and the third temperature control valve is arranged in the high-temperature heat storage chamber.

[0017] A fourth pipeline is arranged between the gas heat exchange chamber and the high-temperature heat storage chamber, the fourth pipeline is installed on the heat insulation layer between the gas heat exchange chamber and the high-temperature heat storage chamber, and water circulation between the gas heat exchange chamber and the high-temperature heat storage chamber is established through the fourth pipeline; a fourth temperature control valve is arranged on the fourth pipeline, and the fourth temperature control valve is arranged in the gas heat exchange chamber.

[0018] Optionally, the gas film drag reduction pipeline is sequentially provided with a pipeline shell, an insulation layer, the gas pipeline and the oil pipeline from outside to inside, a plurality of air permeable holes are distributed on the pipeline wall of the oil pipeline, and the gas in the gas pipeline acts between the crude oil and the pipeline wall of the oil pipeline through the air permeable holes to form a gas film.

[0019] The gas film drag reduction pipeline is provided with n electric heating units and a monitoring module along the crude oil conveying direction, where n is an integer greater than 1; the electric heating unit comprises an electric heating film; the electric heating film is adhered to the insulation layer and is powered and heated by the new energy power generation unit; the monitoring module comprises pressure, temperature and flow sensors and a monitoring energy storage device residual amount data mechanism; the monitoring module also has a controller with wireless or wired communication function, and the controller is electrically connected with the electric heating unit.

[0020] Optionally, the new energy power generation unit includes a power generation device, a power distribution control cabinet and an energy storage device. The power generation device can be photovoltaic power generation or wind power generation. The output electric energy of the power generation device is used to supply power to the water jacket furnace or the air film drag reduction pipeline through the power distribution control cabinet, and the energy storage device stores the output electric energy of the power generation device.

[0021] To achieve the above objectives, the present invention proposes a crude oil transportation system control method, which uses the above crude oil transportation system and specifically includes the following steps:

[0022] Step S100: Establishing the optimal temperature T for crude oil transportation oil and the optimal pressure P oil The relationship function f T and f p :

[0023] Step S200: According to real-time data, optimal temperature T oil and the optimal pressure P oil Set the upper and lower temperature control points;

[0024] Step S300: monitoring and controlling the air film drag reduction pipeline.

[0025] Optionally, in step S100, according to the characteristics of crude oil, crude oil viscosity coefficient β oil 、Ambient temperature W c , ambient humidity H%, crude oil flow rate v oil , Pipe diameter D oil , pipeline length L oil , thermal insulation coefficient α uh , the remaining amount of energy storage equipment CS and energy supply coefficient λ, and the priority principle of power generation and heating of new energy power generation units respectively establish the optimal temperature T for crude oil transportation oil and the optimal pressure P oil The relationship function f T and f p :

[0026] T oil =f T (W c ,α uh ,β oil ,L oil ,D oil ,v oil ,H%,CS,λ):

[0027] Since the pressure replenishment in the air film drag reduction pipeline is based on the principle of gas expansion due to heat, the optimal pressure P oil The function expression is: P oil =f P (T oil).

[0028] Optionally, in step S200, the relevant data of the water jacket furnace and the air film drag reduction pipeline are collected in real time, and the data are calculated based on the relationship function f T and f p , the economic optimal objective function obtains the optimal temperature T oil and the optimal pressure P oil The water jacket furnace sets the upper and lower temperature control points to ensure accurate heat exchange between the gas and crude oil in the water jacket furnace; the economic optimal objective function includes the peak and valley electricity prices of the power grid, the price fluctuation of the power grid, and the surplus of other energy storage equipment.

[0029] Optionally, step S300 includes the following steps:

[0030] Step S310: Determine the actual temperature T of the jth monitoring module among the n monitoring modules of the air film drag reduction pipeline. ox and actual pressure P ox Is it lower than the optimal temperature T for crude oil flow? oil and the optimal pressure P oil , that is, T ox <T oil or P ox <P oil , where j is any point from 1 to n; if T ox <T oil or P ox <P oil , then execute step S320; otherwise, execute step S330;

[0031] Step S320: Determine whether the j-th monitoring module has an electric heating unit and an energy supply method; if the j-th monitoring module has an electric heating unit and an energy supply method, execute steps S340 and S350; otherwise, execute step S360;

[0032] Step S330: When it is monitored that the new energy power generation unit has sufficient power generation, that is, the remaining amount of energy storage equipment CS of the new energy power generation unit is ≥ 60% × CS u When CS u is the upper limit of the remaining amount of the energy storage device; at this time, the heating temperature of each electric heating unit is increased, and the gas and oil supply temperatures of the water jacket furnace are simultaneously reduced;

[0033] Step S340: The electric heating unit is connected to the new energy grid. The electric heating unit is based on the economic optimal objective function and the actual temperature T ox , actual pressure P ox , relation function f T and f p, based on the power of the new energy grid and the optimal temperature T oil and the optimal pressure P oil supplying heat and pressurizing the air film drag reduction pipeline;

[0034] Step S350: When the remaining amount of energy storage device CS≤CS l When CS l The lower limit of the remaining amount of the energy storage device; then the monitoring module at point j sends the value that cannot provide the temperature T ox or pressure P ox The request information is sent to the j-1th monitoring module, and step S370 is executed;

[0035] Step S360: When the water jacket furnace meets the heating and pressurizing conditions, the water jacket furnace analyzes the data of the monitoring module at point j and calculates the value of the monitoring module according to the relationship function f T and f p The optimal temperature after the increase is T oil and the optimal pressure P oil , set the upper and lower temperature control points to provide the temperature T for the j-th point monitoring module ox and pressure P ox ;

[0036] Step S370: Determine whether the j-1th monitoring module has an electric heating unit and an energy supply mode; if the j-1th monitoring module has an electric heating unit and an energy supply mode, execute step S380; otherwise, execute step S390;

[0037] Step S380: Determine whether the remaining amount CS of the energy storage device of the electric heating unit is greater than the lower limit value CS of the remaining amount of the energy storage device l Value and magnification δ l The product of CS>δ l ×CS l ; If CS>δ l ×CS l , then execute step S400; otherwise, execute step S410;

[0038] Step S390: When the monitoring module at point j-1 determines that there is no electric heating unit and energy supply mode, the actual temperature T of the monitoring module at point j-1 is recorded. ox and actual pressure P ox ;

[0039] Step S400: The electric heating unit of the monitoring module at point j-1 is based on the relationship function f T and f p , get the optimal temperature after improvement T oil and the optimal pressure P oil ;

[0040] Step S410: the j-1 point monitoring module sends a request information that the j point monitoring module cannot provide temperature T ox or pressure P ox to the j-2 point monitoring module, so that the j-2 point monitoring module re-executes step S350.

[0041] Compared with the prior art, the present application has the following advantages:

[0042] (1) Through the coordination of the water jacket furnace and the air film drag reduction pipeline, the temperature of the whole crude oil pipeline can be precisely controlled, and the energy consumption can be greatly reduced;

[0043] (2) The use of new energy power generation can reduce carbon emissions;

[0044] (3) The water jacket furnace is precisely temperature-controlled by using new energy power supply as the main power supply and gas heating as the auxiliary power supply, to ensure the all-weather heating demand.

[0045] (4) The water electrode heating unit in the water jacket furnace adopts the maximum power tracking technology, realizes the maximum power tracking control of new energy, ensures the maximum power output of new energy power supply, and reduces the emission of petrochemical energy;

[0046] (5) The crude oil is separated from the oil pipeline by the air film, which greatly reduces the adhesion force between the crude oil and the inner wall of the oil pipeline, and improves the crude oil transportation capacity;

[0047] (6) Under the condition of ensuring the gas pressure, the influence of the crude oil transmission speed and temperature change is relatively small; thus the initial temperature of the crude oil can be appropriately reduced to ensure the flow of the crude oil;

[0048] (7) The gas is assisted by the electric heating film, which can improve the optimal temperature of the crude oil transmission through the gas, and can increase the pressure of the gas by increasing the temperature of the gas, to compensate for the pressure and temperature loss in the crude oil transportation process;

[0049] (8) The heat is transferred to the crude oil through the gas medium, which avoids the carbon deposition and scale formed by directly heating the crude oil by the electric heating film, and affects the heat transfer efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0051] Figure 1 is a structural schematic view of an embodiment of the crude oil transportation system of the present application;

[0052] Figure 2 This is a schematic structural diagram of a water jacket furnace in one embodiment of a crude oil transportation system of the present invention;

[0053] Figure 3 For attachment Figure 2 A local enlarged view of point A;

[0054] Figure 4 This is a schematic structural diagram of an air film drag reduction pipeline in an embodiment of a crude oil transportation system of the present invention;

[0055] Figure 5 Schematic diagram of a flow chart of an embodiment of a crude oil transportation system control method of the present invention.

[0056] The names of the components marked in the figure are as follows:

[0057]

[0058]

[0059] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0060] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0061] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0062] In addition, it should be noted that the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] The embodiment discloses a crude oil conveying system, referring to the accompanying drawings Figures 1-4 , comprising a water jacket furnace 1, a gas film drag reduction pipeline 2 and a new energy power generation unit 3; wherein the water jacket furnace 1 is provided with a crude oil heat exchanger 4 and a gas heat exchanger 5, the crude oil heat exchanger 4 is connected with the oil conveying pipeline 201 of the gas film drag reduction pipeline 2, and the gas heat exchanger 5 is connected with the gas conveying pipeline 202 of the gas film drag reduction pipeline 2;

[0064] The crude oil heated by the crude oil heat exchanger 4 of the water jacket furnace 1 is conveyed into the oil conveying pipeline 201 of the gas film drag reduction pipeline 2 through the outlet end of the crude oil heat exchanger 4; at the same time, the compressed gas heated by the gas heat exchanger 5 of the water jacket furnace 1 is conveyed into the gas conveying pipeline 202 of the gas film drag reduction pipeline 2 through the output end of the gas heat exchanger 5, and the heated compressed gas is conveyed through the air permeable pipeline 201 to establish a gas film 206 layer between the crude oil and the oil conveying pipeline 201 of the gas film drag reduction pipeline 2, thereby reducing the viscous resistance between the crude oil and the inner wall of the oil conveying pipeline 201.

[0065] The new energy power generation unit 3 can be independently installed around the water jacket furnace 1 and the gas film drag reduction pipeline 2, or the water jacket furnace 1 and the gas film drag reduction pipeline 2 share one new energy power generation unit 3 or are connected to a new energy power grid.

[0066] Further, the water jacket furnace 1 comprises a heating and heat storage tank body 6, the inside of the heating and heat storage tank body 6 is sequentially provided with a crude oil heat exchange chamber 601, a low-temperature heat storage chamber 602, a water body heating chamber 603, a gas heat exchange chamber 604 and a high-temperature heat storage chamber 605 from bottom to top, wherein the crude oil heat exchange chamber 601, the low-temperature heat storage chamber 602, the water body heating chamber 603, the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605 are mutually isolated by an insulating material heat insulation layer 606; and the crude oil heat exchange chamber 601, the low-temperature heat storage chamber 602, the water body heating chamber 603, the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605 are respectively provided with upper and lower temperature control valves, and the heat conducting medium is water; the water body heating chamber 603 is provided with a water electrode heating unit 7 and an auxiliary gas heating unit 8, the crude oil heat exchanger 4 is arranged in the crude oil heat exchange chamber 601, and the gas heat exchanger 5 is arranged in the gas heat exchange chamber 604; the heating and heat storage tank body 6 is arranged in the middle of the gas film drag reduction pipeline 2 circuit.

[0067] In this way, based on the water body temperature stratification principle, the water body temperature is distributed from low to high from bottom to top, and thus the crude oil heat exchange chamber 601, the low-temperature heat storage chamber 602, the water body heating chamber 603, the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605 are sequentially distributed from low to high inside the heating and heat storage tank body 6 according to the heating demand.

[0068] Wherein, the crude oil heat exchanger 4 is arranged in the crude oil heat exchange chamber 601, one end of the crude oil heat exchanger 4 is the crude oil inlet end, the other end of the crude oil heat exchanger 4 is the crude oil outlet end, and the crude oil heat exchanger 4 is communicated with the oil pipeline 201 of the gas film drag reduction pipeline 2, the crude oil flowing through the crude oil heat exchanger 4 is heated, and the basic flow temperature of the crude oil in the gas film drag reduction pipeline 2 is realized; the gas heat exchanger 5 is arranged in the gas heat exchange chamber 604, one end of the gas heat exchanger 5 is the gas inlet end, the other end of the gas heat exchanger 5 is the gas outlet end, and the gas heat exchanger 5 is communicated with the gas pipeline 202 of the gas film drag reduction pipeline 2, the compressed gas flowing through the gas heat exchanger 5 is heated, the crude oil is separated from the inner wall of the oil pipeline 201 through the gas pipeline 202 of the gas film drag reduction pipeline 2, and the transmission temperature loss of the crude oil is supplemented through the high-temperature gas at the same time, at this time, the gas pressure is slightly greater than the crude oil pressure in the oil pipeline 201, so that the flow viscous resistance of the crude oil is greatly reduced;

[0069] The heating and heat storage tank body 6 is arranged in the middle of the gas film drag reduction pipeline 2 line, and the heating and heat storage tank body 6 refers to a tank body with heat preservation and pressure bearing functions.

[0070] Further, the water electrode heating unit 7 adopts the maximum power tracking technology, the water electrode heating unit 7 includes a movable water electrode 701 and a fixed water electrode 702; on the basis of the maximum power tracking technology, the heating power of the water electrode heating unit 7 can be changed by controlling and adjusting the distance between the movable water electrode 701 and the fixed water electrode 702.

[0071] In this way, the water electrode heating unit adopting the maximum power tracking technology includes a movable water electrode and a fixed water electrode, and the product of the volume and the resistivity of the water body between the movable water electrode and the fixed water electrode is called water resistance, the greater the relative distance between the movable water electrode and the fixed water electrode, the greater the water resistance value, and vice versa. Based on the mathematical expression of the electric power principle: It is obtained that:

[0072]

[0073] It can be seen that under the same voltage U water , the smaller the heating water resistance R w , the greater the current flowing through, and based on the mathematical expression of Joule's law: And Q=I 2 Rt respectively:

[0074] And

[0075] It can be seen that under the same time t, the change of voltage U water or current I water , the heat Q water changes exponentially and quadratically, and the voltage U wateror current U water The greater the heat Q generated water The greater.

[0076] And the current I water The size of the heating water resistance R w The size of the heating water resistance R w The distance between the movable water electrode and the fixed water electrode is closer, the heating water resistance is smaller, and the current is larger; thus, by controlling the distance between the movable water electrode and the fixed water electrode, the heating power of the water electrode can be changed, based on the maximum power tracking technology, by controlling the distance between the heating water electrodes, changing the water resistance value, tracking the maximum power output of the new energy, and realizing the maximum utilization of photovoltaic maximum power point tracking new energy.

[0077] Wherein, U water The voltage between the movable electrode and the fixed electrode; I water The current between the movable electrode and the fixed electrode; R w The heating water resistance between the movable electrode and the fixed electrode; Q water The heat generated by the heating water resistance between the movable electrode and the fixed electrode.

[0078] Further, the water electrode heating unit 7 further comprises a water electrode driving mechanism 703, and the water electrode driving mechanism 703 is connected with the movable water electrode 701; under the driving action of the water electrode driving mechanism 703, the movable water electrode 701 can move close to or away from the fixed water electrode 702.

[0079] In the embodiment, the water electrode driving mechanism 703 can be selected as a rotating motor 7031, a main drive wheel 7032, a secondary drive wheel 7033, a moving connecting rod 7034, a sliding bracket 7035, a fixed water electrode 702, a movable water electrode 701, the main drive wheel 7032 and the sliding bracket 7035 are sequentially arranged, wherein the fixed water electrode 702 is fixedly connected with the sliding bracket 7035, the movable water electrode 701 is slidably connected with the sliding bracket 7035, and the main drive wheel 7032 is rotatably connected with the sliding bracket 7035; the main drive wheel 7032 is meshingly connected with the secondary drive wheel 7033, the secondary drive wheel 7033 is drivingly connected with the rotating motor 7031, and the two ends of the moving connecting rod 7034 are movably connected with the main drive wheel 7032 and the movable water electrode 701 respectively; when working, the rotating motor 7031 drives the main drive wheel 7032 to rotate through the secondary drive wheel 7033, and since the two ends of the moving connecting rod 7034 are movably connected with the main drive wheel 7032 and the movable water electrode 701 respectively, the movable water electrode 701 slides on the sliding bracket 7035, so as to adjust the distance between the movable water electrode 701 and the fixed water electrode 702.

[0080] The technical solution described above is only one embodiment of the present application. Those skilled in the art can think of other structures of the water electrode driving mechanism 703 without creative labor after understanding the technical solution of the present application, for example, a hydraulic cylinder driving movable water electrode 701 is arranged to move, which should also belong to the protection scope of the present application.

[0081] Further, the auxiliary fuel gas heating unit 8 is arranged below the water electrode heating unit 7. One end of the auxiliary fuel gas heating unit 8 is a fuel gas heating inlet, and the other end of the auxiliary fuel gas heating unit 8 is a fuel gas heating outlet. In this way, when new energy cannot generate electricity and the temperature in the water jacket furnace 1 cannot meet the heating demand, the auxiliary fuel gas heating unit 8 is started to heat the water.

[0082] Further, a first pipeline 9 is arranged between the crude oil heat exchange chamber 601 and the low-temperature heat storage chamber 602. The first pipeline 9 is installed on the heat insulation layer 606 between the crude oil heat exchange chamber 601 and the low-temperature heat storage chamber 602, and the water circulation between the crude oil heat exchange chamber 601 and the low-temperature heat storage chamber 602 is established through the first pipeline 9. A first temperature control valve 901 is arranged on the first pipeline 9, and the first temperature control valve 901 is arranged in the crude oil heat exchange chamber 601. In this way, when the water temperature in the crude oil heat exchange chamber 601 is lower than or equal to the control temperature point of the first temperature control valve 901, the first temperature control valve 901 is opened and the water circulation between the low-temperature heat storage chamber 602 and the crude oil heat exchange chamber 601 is established through the first pipeline 9 to exchange heat. When the water temperature in the crude oil heat exchange chamber 601 is greater than the control temperature point of the first temperature control valve 901, the first temperature control valve 901 is closed and the water circulation with the low-temperature heat storage chamber 602 is stopped, achieving the purpose of fine temperature control.

[0083] Among them, the first temperature control valve 901 and the second temperature control valve 1001, the fourth temperature control valve 1201 and the third temperature control valve 1101 appearing below are all reverse check valves with temperature control through wireless or wired and self-adaptive control. The upper and lower limit temperature points of the temperature control valve can be set and remotely controlled. When the water temperature reaches the set upper or lower limit temperature point, the temperature control valve is automatically opened, and the cold and hot water circulation is realized with the pipeline. For example, when the water temperature is greater than or equal to the set temperature point, the upper limit temperature control valve is automatically opened, and the cold and hot water circulation is realized with the pipeline and the high-temperature water body; for example, when the water temperature is less than or equal to the set temperature point, the lower limit temperature control valve is automatically opened, and the cold and hot water circulation is realized with the pipeline and the high-temperature water body, achieving the purpose of fine control of heat exchange and reducing energy loss.

[0084] The second pipeline 10 is arranged between the low-temperature heat storage chamber 602 and the water heating chamber 603, is installed on the heat insulation layer 606 between the low-temperature heat storage chamber 602 and the water heating chamber 603, and establishes water circulation between the low-temperature heat storage chamber 602 and the water heating chamber 603 through the second pipeline 10; the second temperature control valve 1001 is arranged on the second pipeline 10, and the second temperature control valve 1001 is arranged in the low-temperature heat storage chamber 602; in this way, when the water heating temperature of the water heating chamber 603 is greater than or equal to the temperature control point of the second temperature control valve 1001, the second temperature control valve 1001 is opened, water circulation between the low-temperature heat storage chamber 602 and the water heating chamber 603 is established through the second pipeline 10, and heat exchange is performed. When the water heating temperature of the water heating chamber 603 is less than the temperature control point of the second temperature control valve 1001, the second temperature control valve 1001 is closed, and water circulation with the low-temperature heat storage chamber 602 is stopped, so that fine temperature control is achieved. The low-temperature heat storage chamber 602 is defined relative to the high-temperature heat storage chamber 605.

[0085] The third pipeline 11 is arranged between the high-temperature heat storage chamber 605 and the water heating chamber 603, is installed on the heat insulation layer 606 between the gas heat exchange chamber 604 and the water heating chamber 603 and between the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605, and establishes water circulation between the high-temperature heat storage chamber 605 and the water heating chamber 603 through the third pipeline 11; the third temperature control valve 1101 is arranged on the third pipeline 11, and the third temperature control valve 1101 is arranged in the high-temperature heat storage chamber 605; in this way, when the water heating temperature of the water heating chamber 603 is greater than or equal to the temperature control point of the third temperature control valve 1101, the third temperature control valve 1101 is opened, water circulation between the high-temperature heat storage chamber 605 and the water heating chamber 603 is established through the third pipeline 11, and the water temperature or the gas temperature of the high-temperature heat storage chamber 605 is increased. When the water heating temperature of the water heating chamber 603 is less than the temperature control point of the third temperature control valve 1101, the third temperature control valve 1101 is closed, water circulation with the high-temperature heat storage chamber 605 is stopped, and the purpose of storing high-temperature water or gas in the high-temperature heat storage chamber 605 is achieved.

[0086] The fourth pipeline 12 is installed on the heat insulation layer 606 between the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605, and the water circulation between the gas heat exchange chamber 604 and the high-temperature heat storage chamber 605 is established through the fourth pipeline 12; the fourth temperature control valve 1201 is arranged on the fourth pipeline 12, and the fourth temperature control valve 1201 is arranged in the gas heat exchange chamber 604. In this way, when the water temperature of the gas heat exchange chamber 604 is lower than or equal to the temperature control point of the fourth temperature control valve 1201, the fourth temperature control valve 1201 is opened and the water circulation between the fourth pipeline 12 and the high-temperature heat storage chamber 605 is established. When the water temperature of the gas heat exchange chamber 604 is greater than the temperature control point of the fourth temperature control valve 1201, the fourth temperature control valve 1201 is closed and the water circulation with the high-temperature heat storage chamber 605 is stopped, so as to achieve the purpose of fine temperature control.

[0087] The pressure reducing valve 13 is arranged on the top of the high-temperature heat storage chamber 605, and the safety of the heating heat storage tank body 6 is ensured through the pressure reducing valve 13.

[0088] Further, the gas film drag reduction pipeline 2 is sequentially provided with the pipeline shell 203, the heat preservation layer 204, the gas pipeline 202 and the oil pipeline 201 from outside to inside, the pipeline wall of the oil pipeline 201 is distributed with a plurality of air permeation holes 205, and the gas in the gas pipeline 202 acts between the crude oil and the pipeline wall of the oil pipeline 201 through the air permeation holes 205 to form the gas film 206. In this way, the gas film 206 is used to reduce the viscous resistance between the inner wall of the oil pipeline 201 and the crude oil. When the air pressure is equal to the pressure of the crude oil, the gas chamber of the inner wall of the oil pipeline 201 is sealed by the crude oil, thereby reducing the area of the inner wall of the oil pipeline 201, and also reducing the viscous resistance between the inner wall of the oil pipeline 201 and the crude oil.

[0089] The gas film drag reduction pipeline 2 uses the density of the crude oil which is nearly 800 times that of air, uses the gas to separate the crude oil from the inner wall of the oil pipeline 201, greatly reduces the viscous force of the crude oil and the oil pipeline 201, and uses low-temperature heating to ensure the basic fluidity of the crude oil, so as to greatly reduce the pipeline transportation resistance of the crude oil, reduce the energy consumption of pressurization and heating, and improve the transmission speed and capacity of the crude oil. If the gas is the associated natural gas in the exploitation as the isolation gas, the natural gas is also transmitted on the basis of the transmission of the crude oil, so as to greatly improve the pipeline transportation capacity of the crude oil.

[0090] The gas film drag reduction pipeline 2 is provided with n electric heating units 207 and a monitoring module 208 in the crude oil conveying direction, wherein n is an integer greater than 1; the electric heating unit 207 comprises an electric heating film 2071; the electric heating film 2071 is adhered to a heat preservation layer and is powered and heated by the new energy power generation unit 3; in this way, the compressed gas in the gas pipeline 202 can be heated, the compressed gas is used as a medium to heat the crude oil, and the temperature of the crude oil is increased; at the same time, according to the relationship between gas pressure and temperature, the higher the gas temperature, the greater the gas pressure, the pressure of the compressed gas in the gas pipeline 202 is increased, that is, the temperature is supplemented, and the pressure is also supplemented. The electric heating unit 207 is installed in the inside and outside of the gas film drag reduction pipeline 2 according to the heating demand of the gas film drag reduction pipeline 2, and sends data to the monitoring module 208 and the water jacket furnace 1 through wireless or wired transmission.

[0091] The monitoring module 208 comprises pressure, temperature and flow sensors and a monitoring energy storage device remaining amount data mechanism, and the monitoring module 208 further has a controller with wireless or wired communication function, and the controller is connected with the electric heating film 2071.

[0092] It is further explained that the gas film drag reduction pipeline 2 is long, and several electric heating units 207 are installed and configured according to the distance, environment, heating demand and the like of the gas film drag reduction pipeline 2. The numerical order is that the water jacket furnace 1 is the starting end and is equal to 1. The first monitoring module 208, the second monitoring module 208, the third monitoring module 208, the fourth monitoring module 208, the n-th monitoring module 208 and the electric heating unit 207 are in real-time communication with all the controllers through the controller and obtain relevant data. The configuration mode of the monitoring module 208 and the electric heating unit 207 is that the monitoring module 208 can be configured alone, or the monitoring module 208 and the electric heating unit 207 are configured at the same time, but the electric heating unit 207 cannot be configured alone without the monitoring module 208.

[0093] Further, the new energy power generation unit 3 comprises a power generation device 301, a power distribution control cabinet 302 and an energy storage device 303. The power generation device 301 can be photovoltaic power generation 3011 or wind power generation 3012. The output power of the power generation device 301 is supplied to the water jacket furnace 1 or the gas film drag reduction pipeline 2 through the power distribution control cabinet 302, and the energy storage device 303 stores the output power of the power generation device 301. In this way, considering that the surrounding area of the main distribution position of the water jacket furnace 1 is mainly rural and wild, it is also the preferred installation position of the wind power generation 3012 and the photovoltaic power generation 3011. Therefore, the new energy power generation unit 3 supplies new energy to the water jacket furnace 1 and the gas film drag reduction pipeline 2, which is conducive to reducing carbon emissions.

[0094] Among them, photovoltaic power generation 3011 or wind power generation 3012 directly supplies power for the electric heating unit 207 of the air film drag reduction pipeline 2, and a certain capacity of energy storage device 303 is configured, which is placed together with the power distribution control cabinet 302 at the periphery of the electric heating unit 207, to overcome the instability and periodic change of new energy power supply, and meet the power supply demand for a certain length of time.

[0095] The present application provides a crude oil transportation system control method, which applies the above-mentioned crude oil transportation system, and refers to the attached Figure 5 , specifically comprising the following steps:

[0096] Step S100: establishing the relationship function f oil and f oil of the optimal temperature T T and the optimal pressure P p of crude oil transportation:

[0097] In step S100, the relationship function f T and f p of the optimal temperature T oil and the optimal pressure P oil of crude oil transportation are respectively established according to the characteristics of crude oil, the viscosity coefficient β oil of crude oil, the ambient temperature W c , the ambient humidity H%, the flow rate v oil of crude oil, the pipeline diameter D oil , the pipeline length L oil , the heat insulation coefficient α uh , the remaining amount CS of energy storage device and the energy supply coefficient λ, and the power generation and heating priority principle of new energy power generation unit:

[0098] T oil = f T (W c , α uh , β oil , L oil , D oil , v oil , H%, CS, λ):

[0099] Since the pressure supplement in the air film drag reduction pipeline is based on the principle of gas expansion by heating, the optimal pressure P oil function expression is: P oil = f P (T oil ).

[0100] Among them, the energy storage remaining amount CS is divided into battery energy storage and thermal energy storage remaining amount, and the energy storage remaining amount CS is greater than or equal to 50%-70% of the upper limit CS u value of the remaining amount, that is, CS≥60%×CS uThe new energy generation is sufficient when the value of the new energy generation surplus amount CS is positive, and the new energy generation is deficient when the value of the new energy generation surplus amount CS is negative; the heat storage surplus amount CS reflects a remaining capacity of heat storage in the heat storage mode of the water jacket furnace; the electricity storage surplus amount CS reflects a remaining capacity of electricity storage in the electricity storage mode of the electric heating unit; when there is new energy generation, it is indicated that the new energy generation in the region meets the power supply demand of the heating unit, and the new energy generation along the oil pipeline can also meet the demand of supplying the heating unit, so that the heating temperature does not need to be too high, and the heating unit is supplied by the new energy generation along the oil pipeline, and for this purpose, the energy supply coefficient λ is introduced, and the greater the value of the coefficient λ, the higher the heating temperature, and vice versa.

[0101] Step S200: obtaining the optimal temperature T oil and the optimal pressure P oil according to real-time data, an optimal temperature function f T and an optimal pressure function f p , and an economic optimal target function;

[0102] In step S200, the related data of the water jacket furnace and the gas film drag reduction pipeline are collected in real time, and the optimal temperature T oil and the optimal pressure P oil are obtained according to the relationship functions f T and f p and the economic optimal target function, the water jacket furnace sets the upper limit temperature control point and the lower limit temperature control point to ensure the accurate heat exchange between the gas and the crude oil of the water jacket furnace; wherein the economic optimal target function includes the peak-valley price of the power grid, the price of stabilizing the power grid fluctuation and the remaining amount of other energy storage devices.

[0103] Step S300: monitoring and controlling the gas film drag reduction pipeline.

[0104] In step S300, the following steps are included:

[0105] Step S310: determining whether the actual temperature T ox and the actual pressure P ox of the jth monitoring module of the n monitoring modules of the gas film drag reduction pipeline are lower than the optimal temperature T oil and the optimal pressure P oil of the crude oil flow, i.e., T ox <T oil or P ox <P oil , wherein j is any one of 1 to n; if T ox <T oil or P ox <P oil , step S320 is executed; otherwise, step S330 is executed.

[0106] In step S310, since there are several electric heating units and monitoring modules on the air film drag reduction pipeline, the actual temperature T of the air film drag reduction pipeline is obtained by monitoring n monitoring modules. ox and actual pressure P ox Data, and analyze whether it is lower than the optimal temperature T for crude oil flow oil and the optimal pressure P oil ;

[0107] When the monitoring module at point j monitors the actual temperature T of the air film drag reduction pipeline ox and actual pressure P ox , analyze its actual temperature T ox Or actual pressure P ox Is it lower than the optimal temperature T for crude oil flow? oil and the optimal pressure P oil , that is, T ox <T oil or P ox <P oil , where j is any point from 1 to n;

[0108] Step S320: Determine whether the j-th monitoring module has an electric heating unit and an energy supply method; if the j-th monitoring module has an electric heating unit and an energy supply method, execute steps S340 and S350; otherwise, execute step S360;

[0109] In step S320, if the actual temperature T ox Or actual pressure P ox Lower than the optimal temperature T for crude oil flow oil and the optimal pressure P oil , that is, T ox <T oil or P ox <P oil When performing a heat treatment, the air film drag reduction pipe at point j is first analyzed and determined to determine whether the monitoring module at point j has an electric heating unit and an energy supply method. For example, if the energy supply method is renewable energy power supply, it can be understood that heating can only be performed on the air film drag reduction pipe at that point if both the monitoring module and the electric heating unit are configured.

[0110] Step S330: When it is monitored that the new energy power generation unit has sufficient power generation, that is, the remaining amount of energy storage equipment CS of the new energy power generation unit is ≥ 60% × CS u When CS u is the upper limit of the remaining amount of the energy storage device; at this time, the heating temperature of each electric heating unit is increased, and the gas and oil supply temperatures of the water jacket furnace are simultaneously reduced;

[0111] In step S330, when the remaining amount CS of the energy storage device along the oil pipeline is greater than or equal to the upper limit of the remaining amount CS u , 60% of the value, that is, CS≥60%×CS u , it indicates that the new energy power generation is sufficient at this time, and the new energy power generation in the region meets the power supply demand of the heating unit. The oil pipeline along the line can also meet the demand of the heating unit supplied by the new energy power generation. Therefore, the heating temperature of the water jacket furnace as the source does not need to be too high, and the heating unit is supplied by the new energy power generation along the oil pipeline. Thus, the initial temperature and pressure of the crude oil transmission can be reduced. That is, each electric heating unit appropriately increases the heating temperature according to the control strategy, and synchronously reduces the gas supply and crude oil temperature of the water jacket furnace, thereby maximizing the utilization of new energy power generation power,

[0112] Step S340: The electric heating unit is connected with the new energy power grid, and the electric heating unit supplies heat and pressure to the gas film drag reduction pipeline according to the economic optimal objective function, in combination with the actual temperature T ox , the actual pressure P ox , the relationship functions f T and f p , the new energy power grid power, the optimal temperature T oil and the optimal pressure P oil .

[0113] In step S340, when the electric heating unit is connected with the new energy power grid, the electric heating unit supplies heat and pressure to the gas film drag reduction pipeline according to the economic optimal objective function, in combination with the real-time acquisition monitoring module data and the relationship functions f T and f p

[0114] T oil =f T (W c ,α uh ,β oil ,L oil ,D oil ,v oil ,H%,CS,λ) and P oil =f P (T oil )

[0115] The optimal temperature T oil and the optimal pressure P oil of the crude oil transmission are obtained, and the electric heating unit receives the new energy power grid power, and supplies heat and pressure to the gas film drag reduction pipeline according to the optimal temperature T oil and the optimal pressure P oil , and adjusts the power grid. The economic optimal objective function includes the peak-valley price of the power grid, the fluctuation price of the power grid, and the remaining amount of other energy storage devices.

[0116] Step S350: When the energy storage device remaining amount CS≤CS l , wherein CS l is the energy storage device remaining amount lower limit value; the jth monitoring module sends a request information to the j-1th monitoring module that cannot provide the temperature T ox or the pressure P ox , and step S370 is executed;

[0117] Step S370: Determine whether the j-1th monitoring module has an electric heating unit and an energy supply mode; if the j-1th monitoring module has an electric heating unit and an energy supply mode, execute step S380; otherwise, execute step S390;

[0118] Step S380: Determine whether the energy storage device remaining amount CS of the electric heating unit is greater than the product of the energy storage device remaining amount lower limit value CS l and the rate δ l , i.e., CS>δ l ×CS l ; if CS>δ l ×CS l , execute step S400; otherwise, execute step S410;

[0119] In steps S350, S370, and S380, when the energy storage device remaining amount CS is lower than the energy storage remaining amount lower limit CS l , i.e., CS≤CS l , or when a fault occurs, the jth monitoring module sends a low temperature T ox or low pressure P ox request information and location positioning information to all electric heating units and water jacket furnaces; when the j-1th monitoring module receives the information, the j-1th monitoring module determines whether it has an electric heating unit and an energy supply mode; when it is determined that the j-1th monitoring module has an electric heating unit powered by new energy, the viscosity coefficient β oil of the crude oil, the ambient temperature W c , the ambient humidity H%, the crude oil flow rate v oil , the pipeline diameter D oil , the heat insulation coefficient α uh , the energy storage remaining amount CS, the energy supply coefficient λ, and the distance L oil of the request location positioning information are analyzed.

[0120] Due to the volatility of new energy power generation, the battery energy storage mode is used to ensure power supply demand within a certain time, and thus the amount of energy storage device remaining amount CS is the key to whether the electric heating unit can be heated, so first determine whether the energy storage device remaining amount CS of the electric heating unit is greater than the lower limit value CS l and the rate δl The product of CS>δ l ×CS l When the electric heating unit of the monitoring module at point j-1 is T and f p :

[0121] T oil =f T (W c ,α uh ,β oil ,L oil ,D oil ,v oil ,H%,CS,λ) or P oil =f P (T oil )

[0122] The optimal temperature T for crude oil transportation after the increase oil and the optimal pressure P oil , provides temperature T for the electric heating unit requesting information for the air film drag reduction pipeline ox and pressure P ox ensure;

[0123] Among them, δ l is the ratio of the remaining amount, which is an integer greater than 1, i.e. δ l ≥1; CS is the remaining amount of energy storage equipment; CS l The lower limit of the remaining amount.

[0124] Step S360: When the water jacket furnace meets the heating and pressurizing conditions, the water jacket furnace analyzes the data of the monitoring module at point j and calculates the value of the monitoring module according to the relationship function f T and f p The optimal temperature after the increase is T oil and the optimal pressure P oil , set the upper and lower temperature control points to provide the temperature T for the j-th point monitoring module ox and pressure P ox ;

[0125] In step S360, according to the current positioning data, in the crude oil transportation direction, only the water jacket furnace is required to heat and pressurize the jth monitoring module point, determine the energy supply mode and analyze the remaining energy storage CS and the ambient temperature W. c , crude oil viscosity coefficient β oil , ambient humidity H%, crude oil flow rate v oil , Pipe diameter D oil , thermal insulation coefficient α uh , and energy supply coefficient λ, and the location distance L of the monitoring module at the requested point j oilData. Among them, the water jacket furnace adopts heat storage mode for energy storage, so the energy storage remaining amount CS is the heat storage remaining amount CS.

[0126] Thus, according to the relationship function f T and f p

[0127] T oil = f T (W c , a uh , b oil , L oil , D oil , v oil , H%, CS, l) and P oil = f P (T oil )

[0128] Thus, the water jacket furnace obtains the optimal temperature T oil and the optimal pressure P oil of the improved crude oil transportation, and the water jacket furnace controller updates the temperature of the upper limit control temperature point and the lower limit control temperature point of the related temperature control valve, and provides guarantee for the actual temperature T ox or the actual pressure P ox of the jth point monitoring module position of the air film drag reduction pipeline.

[0129] Among them, when the optimal pressure P oil is improved, the water jacket furnace controller sets the temperature of the upper limit temperature control point of the fourth temperature control valve; when the optimal temperature T oil is improved, the water jacket furnace controller sets the temperature of the upper limit temperature control point of the first temperature control valve.

[0130] Step S390: When the jth-1 point monitoring module determines that it does not have an electric heating unit and an energy supply mode, record the actual temperature T ox and the actual pressure P ox of the jth-1 point monitoring module;

[0131] In step S390, since the jth-1 point monitoring module determines that it does not have an electric heating unit and an energy supply mode, i.e. the actual temperature T ox and the actual pressure P ox cannot be improved to the optimal temperature T oil and the optimal pressure P oil , at this time, the actual temperature T ox and the actual pressure P ox of the jth-1 point monitoring module can be recorded, which provides reference data for the heating of the electric heating unit at the jth-2 point monitoring module.

[0132] Step S400: The electric heating unit of the jth-1 point monitoring module is improved according to the relationship function fT and f p , to obtain the promoted optimal temperature T oil and optimal pressure P oil ;

[0133] In step S400, by promoting the actual temperature T ox and actual pressure P ox of the j-1 point monitoring module to the optimal temperature T oil and optimal pressure P oil , the smooth transportation of crude oil in the gas film drag reduction pipeline is ensured.

[0134] Step S410: the j-1 point monitoring module sends request information to the j-2 point monitoring module that cannot provide the temperature T ox or pressure P ox for the j point monitoring module, so that the j-2 point monitoring module re-executes step S350.

[0135] In step S410, when the electric heating unit of the j-1 point monitoring module judges that the remaining amount CS of the energy storage device is less than or equal to the product of the lower limit CS l value and the rate δ l , that is, CS≤δ l ×CS l , it indicates that the remaining amount of the energy storage device cannot meet the pressure and temperature provided for the next monitoring module point; similarly, the electric heating unit sends a request signal to all the electric heating units and the water jacket furnace that cannot promote the temperature T ox and pressure P ox for the j point monitoring module; at this time, the request information is sent to the j-2 monitoring module closest to the crude oil transportation direction.

[0136] It should be noted that other contents of the crude oil transportation system and the control method thereof disclosed in the present application are prior art, and will not be described here.

[0137] The above is only an optional embodiment of the present application, and does not limit the patent scope of the present application, and any direct / indirect application of the present application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A crude oil transfer system characterized by, The system comprises a water jacket furnace, a gas film drag reduction pipeline and a new energy power generation unit; the water jacket furnace is provided with a crude oil heat exchanger and a gas heat exchanger; the crude oil heat exchanger is connected with an oil pipeline of the gas film drag reduction pipeline; the gas heat exchanger is connected with a gas pipeline of the gas film drag reduction pipeline; The new energy power generation unit can be independently installed on the periphery of the water jacket furnace and the gas film drag reduction pipeline, or the water jacket furnace and the gas film drag reduction pipeline share one new energy power generation unit or are connected with a new energy power grid. The water jacket furnace comprises a heating and heat storage tank body; the inside of the heating and heat storage tank body is sequentially provided with a crude oil heat exchange chamber, a low-temperature heat storage chamber, a water body heating chamber, a gas heat exchange chamber and a high-temperature heat storage chamber from bottom to top; the crude oil heat exchange chamber, the low-temperature heat storage chamber, the water body heating chamber, the gas heat exchange chamber and the high-temperature heat storage chamber are mutually isolated by an adiabatic material heat insulation layer; the crude oil heat exchange chamber, the low-temperature heat storage chamber, the water body heating chamber, the gas heat exchange chamber and the high-temperature heat storage chamber are respectively provided with temperature control valves, and the heat conduction medium is water; the water body heating chamber is provided with a water electrode heating unit and an auxiliary gas heating unit; the crude oil heat exchanger is arranged in the crude oil heat exchange chamber, and the gas heat exchanger is arranged in the gas heat exchange chamber; the heating and heat storage tank body is arranged in the middle of the gas film drag reduction pipeline line.

2. The crude oil delivery system of claim 1, wherein: The water electrode heating unit adopts a maximum power tracking technology; the water electrode heating unit comprises a movable water electrode and a fixed water electrode; on the basis of the maximum power tracking technology, the heating power of the water electrode heating unit can be changed by controlling and adjusting the distance between the movable water electrode and the fixed water electrode.

3. The crude oil transfer system of claim 2, wherein: The water electrode heating unit further comprises a water electrode driving mechanism connected with the movable water electrode; under the driving action of the water electrode driving mechanism, the movable water electrode can move close to or away from the fixed water electrode.

4. The crude oil delivery system of claim 1, wherein: The auxiliary gas heating unit is arranged below the water electrode heating unit; one end of the auxiliary gas heating unit is a gas heating inlet, and the other end of the auxiliary gas heating unit is a gas heating outlet.

5. The crude oil conveying system according to claim 1, wherein: a first pipeline is arranged between the crude oil heat exchange chamber and the low-temperature heat storage chamber; the first pipeline is arranged on the heat insulation layer between the crude oil heat exchange chamber and the low-temperature heat storage chamber; the water circulation between the crude oil heat exchange chamber and the low-temperature heat storage chamber is established through the first pipeline; a first temperature control valve is arranged on the first pipeline, and the first temperature control valve is arranged in the crude oil heat exchange chamber; a second pipeline is arranged between the low-temperature heat storage chamber and the water body heating chamber; the second pipeline is arranged on the heat insulation layer between the low-temperature heat storage chamber and the water body heating chamber; the water circulation between the low-temperature heat storage chamber and the water body heating chamber is established through the second pipeline; a second temperature control valve is arranged on the second pipeline, and the second temperature control valve is arranged in the low-temperature heat storage chamber; A third pipeline is arranged between the high-temperature heat storage chamber and the water heating chamber, the third pipeline is installed on the heat insulation layer between the gas heat exchange chamber and the water heating chamber and between the gas heat exchange chamber and the high-temperature heat storage chamber, and water circulation between the high-temperature heat storage chamber and the water heating chamber is established through the third pipeline; a third temperature control valve is arranged on the third pipeline, and the third temperature control valve is arranged in the high-temperature heat storage chamber; A fourth pipeline is arranged between the gas heat exchange chamber and the high-temperature heat storage chamber, the fourth pipeline is installed on the heat insulation layer between the gas heat exchange chamber and the high-temperature heat storage chamber, and water circulation between the gas heat exchange chamber and the high-temperature heat storage chamber is established through the fourth pipeline; a fourth temperature control valve is arranged on the fourth pipeline, and the fourth temperature control valve is arranged in the gas heat exchange chamber.

6. The crude oil delivery system of claim 1, wherein: The gas film drag reduction pipeline is sequentially provided with a pipeline shell, an insulation layer, the gas pipeline and the oil pipeline from outside to inside, a plurality of air permeable holes are distributed on the pipeline wall of the oil pipeline, and the gas in the gas pipeline acts between the crude oil and the pipeline wall of the oil pipeline through the air permeable holes to form a gas film; The gas film drag reduction pipeline is provided with n electric heating units and a monitoring module along the crude oil conveying direction, where n is an integer greater than 1; the electric heating unit includes an electric heating film; the electric heating film is adhered to the insulation layer and is powered and heated by the new energy power generation unit; the monitoring module includes pressure, temperature and flow sensors and a monitoring energy storage device residual amount data mechanism; the monitoring module also has a controller with wireless or wired communication function, and the controller is electrically connected with the electric heating unit.

7. The crude oil delivery system of claim 1, wherein: The new energy power generation unit includes a power generation device, a power distribution control cabinet and an energy storage device; the power generation device is photovoltaic power generation or wind power generation; output power of the power generation device is supplied to the water jacket furnace or the gas film drag reduction pipeline through the power distribution control cabinet; and the energy storage device stores the output power of the power generation device.

8. A crude oil transfer system control method characterized by: The application is applied to the crude oil conveying system according to any one of claims 1 to 7, and specifically includes the following steps: Step S100: Establishing a relationship function f oil of the optimal temperature T oil and the optimal pressure P T and f p : Step S200: setting upper and lower temperature control points according to real-time data, optimal temperature T oil and optimal pressure P oil and the optimal pressure P Step S300: monitoring and controlling the gas film drag reduction pipeline.

9. The crude oil transfer system control method of claim 8, wherein: In step S100, the relationship functions f oil and f c of the optimal temperature T oil and the optimal pressure P oil of the crude oil transportation are respectively established according to the characteristics of the crude oil, the viscosity coefficient β oil of the crude oil, the ambient temperature W uh , the ambient humidity H%, the flow rate v oil of the crude oil, the pipeline diameter D oil , the pipeline length L T , the heat insulation coefficient α p , the remaining amount CS of the energy storage device, the energy supply coefficient λ, and the power generation heating priority principle of the new energy power generation unit. T oil = f T (W c , a uh , β oil , L oil , D oil , v oil , H%, CS, λ); Since the pressure replenishment in the air film drag reduction pipeline is based on the principle of gas expansion due to heat, the optimal pressure P oil The function expression is: P oil =f P (T oil ).

10. The crude oil transfer system control method of claim 9, wherein: In step S200, the relevant data of the water jacket furnace and the air film drag reduction pipeline are collected in real time, and the data are calculated based on the relationship function f T and f p , the economic optimal objective function obtains the optimal temperature T oil and the optimal pressure P oil The water jacket furnace sets the upper and lower temperature control points to ensure accurate heat exchange between the gas and crude oil in the water jacket furnace; the economic optimal objective function includes the peak and valley electricity prices of the power grid, the price fluctuation of the power grid, and the surplus of other energy storage equipment.

11. The crude oil transfer system control method of claim 10, wherein: The gas film drag reduction pipeline is provided with n electric heating units and a monitoring module along the crude oil conveying direction, where n is an integer greater than 1; In step S300, the following steps are included: Step S310: judging whether the actual temperature T and the actual pressure P of the jth point monitoring module in the n monitoring modules of the gas film drag reduction pipeline are lower than the optimal temperature T and the optimal pressure P of the crude oil flow, i.e. T ox and P ox <T oil and P oil , i.e. T ox <T oil or P ox <P oil , where j is any one of 1 to n; if T ox <T oil or P ox <P oil , step S320 is executed; otherwise, step S330 is executed; Step S320: determining whether the jth monitoring module has an electric heating unit and an energy supply mode; if the jth monitoring module has an electric heating unit and an energy supply mode, steps S340 and S350 are executed; Otherwise, step S360 is executed; Step S330: When it is monitored that the new energy power generation unit generates sufficient power, that is, the remaining amount CS of the energy storage device of the new energy power generation unit ≥ 60% × CS u , wherein CS u is the upper limit value of the remaining amount of the energy storage device; at this time, the heating temperature of each electric heating unit is increased, and the gas supply and oil supply temperature of the water jacket furnace is simultaneously reduced. Step S340: the electric heating unit is connected with the new energy power grid, and the electric heating unit supplies heat and pressure to the air film drag reduction pipeline according to the new energy power grid power, the optimal temperature T ox , the optimal pressure P ox , the relationship function f T , and f p , according to the actual temperature T oil , the actual pressure P oil , the relationship function f T , and f p . Step S350: When the energy storage device remaining amount CS≤CS l , wherein CS l is the energy storage device remaining amount lower limit value; the jth point monitoring module sends a request information to the j-1th point monitoring module that cannot provide the temperature T ox or the pressure P ox , and executes step S370; Step S360: When the water jacket furnace meets the heating and pressurizing conditions, the water jacket furnace analyzes the data of the monitoring module at point j and calculates the value of the monitoring module according to the relationship function f T and f p The optimal temperature after the increase is T oil and the optimal pressure P oil , set the upper and lower temperature control points to provide the temperature T for the j-th point monitoring module ox and pressure P ox ; Step S370: determining whether the j-1th monitoring module has an electric heating unit and an energy supply mode; if the j-1th monitoring module has an electric heating unit and an energy supply mode, step S380 is executed; Otherwise, step S390 is executed; Step S380: judging whether the remaining amount CS of the energy storage device of the present electric heating unit is greater than the lower limit value CS of the remaining amount of the energy storage device l and the product of the ratio δ l and the remaining amount CS, i.e. CS>δ l ×CS l ; if CS>δ l ×CS l , step S400 is executed; otherwise, step S410 is executed; Step S390: When the j-1th point monitoring module determines that the electric heating unit and the energy supply mode are not available, record the actual temperature T of the j-1th point monitoring module ox and the actual pressure P ox ; Step S400: The electric heating unit of the j-1th point monitoring module is controlled according to the relationship function f T and f p , to obtain the promoted optimal temperature T oil and the optimal pressure P oil ; Step S410: The j-1st point monitoring module sends a request information that the jth point monitoring module cannot provide the temperature T ox or the pressure P ox to the j-2nd point monitoring module, so that the j-2nd point monitoring module re-executes the step S350.

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