Memory, method, device and apparatus for material transfer control in a refinery

Abstract

The application discloses a memory, a material conveying control method, device and equipment for a refining enterprise, and the method comprises the following steps: when isolated network operation occurs, the isolated network duration of the isolated network operation is determined; the material supply amount of a feeding tank of a process device is calculated according to the material inventory of the feeding tank and the material receiving amount of the feeding tank within the isolated network duration; the adaptive power output of a feeder pump when the state of ensuring material balance of the process device reaches the isolated network duration is determined according to the material demand amount of the process device and the material supply amount of the feeding tank; the output power of the feeder pump of each process device is determined according to the adaptive power output; and the material balance of the process device is controlled through the adjustment of the discharge amount of the corresponding feeding tank of the process device. The application reduces the power grid fluctuation of the internal power system of the refining enterprise during the isolated network operation, and in turn effectively reduces the risk of power grid collapse of the internal power system of the refining enterprise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid, in particular to a memory, a material conveying control method, device and equipment for a refining enterprise. BACKGROUND

[0002] The energy consumption of a refining enterprise is generally large, and the reliability requirement for energy supply is relatively high. Generally, a cogeneration unit is provided in the refining enterprise to provide heat energy and electric energy. The cogeneration unit generally adopts a steam-to-power operation mode, that is, steam supply is preferentially ensured, and then the external power grid provides a supplement for the power shortage.

[0003] In a normal operation state, the power grid of the cogeneration unit has relatively high reliability due to the support of the external power grid. At this time, the material conveying control mode of each process in each production process of the refining enterprise is generally to adjust the output power of the feed pump to ensure the material balance of the corresponding process device.

[0004] Enterprise isolated grid operation refers to a situation that the internal power system of the refining enterprise loses the external power grid as a supplement power source due to a power system accident. At this time, the normal operation of part of important loads needs to be ensured by relying on the self-provided heat and power unit of the refining enterprise, and the overall production is started again after the grid restoration.

[0005] The inventors have found through research that in the enterprise isolated grid operation, the reliability of the internal power system of the refining enterprise is seriously damaged due to the lack of support of the external power grid. At this time, in order to reduce the load, the operation of part of the feed pumps is retained, and the internal power system of the refining enterprise still has the risk of grid collapse.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the application and is not intended to be a recognition or a suggestion that this information forms part of the prior art that is already known to those of ordinary skill in the art. SUMMARY

[0007] The purpose of the present application is to reduce the risk of grid collapse of the internal power system of the refining enterprise in the enterprise isolated grid operation.

[0008] The present application provides a material conveying control method for a refining enterprise, comprising the steps of:

[0009] S11, when isolated grid operation occurs, determining an isolated grid duration of the isolated grid operation;

[0010] S12, calculating a material supply amount of a feed tank of the process device according to a material inventory of the feed tank and a material receiving amount of the feed tank in the isolated grid duration;

[0011] S13, determining the adaptive power output of the feeding machine pump of the process device according to the material demand of the process device and the material supply of the feeding tank when the state of ensuring material balance of the process device reaches the length of isolated network;

[0012] S14, determining the output power of the feeding machine pump of each process device according to the adaptive power output;

[0013] S15, controlling the material balance of the process device by adjusting the discharge amount of the corresponding feeding tank of the process device.

[0014] In the present application, the length of isolated network is determined according to the fault reason causing the isolated network operation and / or the fault repair time.

[0015] In the present application, the adaptive power output of the feeding machine pump of the process device when the state of ensuring material balance of the process device reaches the length of isolated network according to the material demand of the process device and the material supply of the feeding tank comprises:

[0016] When the material supply is greater than the material demand, the adaptive power output of the feeding machine pump of the process device is zero.

[0017] In the present application, the adaptive power output of the feeding machine pump of the process device when the state of ensuring material balance of the process device reaches the length of isolated network according to the material demand of the process device and the material supply of the feeding tank further comprises:

[0018] When the material supply is greater than 60% of the material demand, the adaptive power output of the feeding machine pump of the process device is 50% of the normal working power.

[0019] In the present application, the adaptive power output of the feeding machine pump of the process device when the state of ensuring material balance of the process device reaches the length of isolated network according to the material demand of the process device and the material supply of the feeding tank further comprises:

[0020] When the material supply is less than 20% of the material demand, the adaptive power output of the feeding machine pump of the process device is the normal working power.

[0021] In the present application, it further comprises:

[0022] When the pump is stopped and the load is reduced, the feeding machine pump with zero adaptive power output is preferentially stopped.

[0023] In the present application, when the pump is stopped and the load is reduced, the feeding machine pump with zero adaptive power output is preferentially stopped, which comprises:

[0024] calculating a margin of the material inventory relative to the material demand when the material inventory is greater than the material demand;

[0025] determining a pump-stopped feeder pump according to the margin.

[0026] In the present application, further comprising:

[0027] When the preset number of pump-stopped feeders is reached, further comprising adapting the output power of the feeder pump to zero, and controlling the feeder pump to maintain its minimum output power for basic operation.

[0028] In another aspect of the present application, a material delivery control device for a refining enterprise is provided, comprising:

[0029] A black-start network duration determination unit is configured to determine a black-start network duration when a black-start network operation occurs.

[0030] A storage tank material calculation unit is configured to calculate a material supply amount of a feed tank of the process device according to a material inventory of the feed tank of the process device and a material receiving amount of the feed tank within the black-start network duration.

[0031] A pump power calculation unit is configured to determine an adapted output power of a pump of the process device when a state of ensuring material balance of the process device reaches the black-start network duration according to a material demand amount of the process device and the material supply amount of the feed tank.

[0032] A pump power control unit is configured to control an output power of the pump of each of the process devices according to the adapted output power.

[0033] A storage tank discharge control unit is configured to control material balance of the process device by adjusting a discharge amount of a corresponding feed tank of the process device.

[0034] In another aspect of the present application, a storage device is provided, comprising a software program adapted to execute the steps of the above-mentioned material delivery control method for a refining enterprise by a processor.

[0035] In another aspect of the present application, a material delivery control device for a refining enterprise is provided, comprising a computer program stored on a storage device, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the method of the above aspects and achieve the same technical effects.

[0036] Compared with the prior art, the present application has the following beneficial effects:

[0037] In the present application, firstly, the duration of the isolated network operation is predicted according to the fault reason causing the isolated network operation or the estimated repair time of the fault, so as to obtain the isolated network duration; then, the total amount of material that can be obtained by the feeding tank of the process device during the isolated network operation (i.e., the material supply amount) is calculated through the current material inventory of the feeding tank of the process device and the material receiving amount of the feeding tank during the isolated network operation; then, after obtaining the material supply amount of the process device, the feeding pump conveying amount of the feeding machine of the process device during the isolated network operation is calculated according to the material demand amount of the process device; the output power of the feeding pump is determined according to the feeding pump conveying amount of the process device, and the adaptive power output of the feeding pump of each process device is obtained; that is, the feeding pump of the process device is used at a reduced power or stopped in the present application, so as to maximize the production capacity of the refining enterprise; further, the adjusting frequency and adjusting range of the feeding pump are reduced under the premise of minimizing the production loss of the refining enterprise during the isolated network operation, and the impact of the feeding pump adjustment on the power grid is reduced. Specifically, the material balance of the process device is controlled by adjusting the discharge amount of the corresponding feeding tank of the process device during the isolated network operation, so that the start-stop and opening degree adjustment of the feeding pump during the isolated network operation is minimized, thereby greatly reducing the power grid volatility of the internal power system of the refining enterprise, and effectively reducing the risk of power grid collapse of the internal power system of the refining enterprise.

[0038] Further, the pump stopping selection and feeding pump power reduction during the isolated network operation can maximize the impact on the overall production capacity of the refining enterprise, thereby effectively reducing the economic loss caused by the isolated network.

[0039] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application and can be implemented according to the content of the specification, at the same time, in order to make the above and other purposes, technical features and advantages of the present application more easily understood, one or more preferred embodiments are listed below, and are described in detail as follows with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a step diagram of the material conveying control method for a refining enterprise described in the present application;

[0041] Figure 2 is a structural schematic diagram of the material conveying control device for a refining enterprise described in the present application;

[0042] Figure 3 is a structural schematic diagram of the material conveying control device for a refining enterprise described in the present application. Detailed Implementation

[0043] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0044] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0045] In this document, the terms "first," "second," etc., are used to distinguish two different elements or parts, and are not used to define specific positions or relative relationships. In other words, in some embodiments, the terms "first," "second," etc., can also be used interchangeably.

[0046] Example One

[0047] To mitigate the risk of grid collapse within the internal power system of a refining enterprise during isolated grid operation, such as... Figure 1 As shown, this embodiment of the invention provides a material conveying control method for refining and chemical enterprises, including the following steps:

[0048] S11. When an isolated network occurs, determine the duration of the isolated network operation;

[0049] Isolated grid operation often occurs due to power system accidents or faults, and the time required for power repair and restoration varies depending on the cause. Therefore, the isolated grid duration can be predicted based on the cause of the fault and / or the fault repair time. In this embodiment of the invention, the isolated grid duration refers to the length of time that a refining and chemical enterprise needs to be in isolated grid operation.

[0050] In practical applications, the power supply and maintenance characteristics of the upstream power grid can also be used as a factor in predicting the duration of islanding. Relevant factors mainly include the time required for fault repair or load transfer after a power outage in the upstream power grid. If the upstream power grid operates flexibly and its operation mode is easily adjusted, the time required to transfer the load will be shorter; otherwise, the transfer time will be longer. In other words, the power supply and maintenance characteristics of the upstream power grid will also affect the prediction of islanding duration.

[0051] S12. Calculate the material supply of the feed tank based on the material inventory of the feed tank of the process device and the material received by the feed tank during the time of the isolated network.

[0052] The processes in the production process of the refining enterprise are realized by a plurality of process devices; according to the front and back relationship of the process corresponding to the process device in the whole production process, the process devices also have corresponding upstream and downstream relationship; in the production process of the refining enterprise, part of the process devices will deliver part of the intermediate product oil to the corresponding storage tank; the downstream process device (process device B) can store the intermediate product oil in the storage tank (storage tank A) of the upstream process device (process device A) as feed, at this time, the storage tank (storage tank A) is the feed tank of the process device B, and so on, so that the feed tank of each process device can be determined.

[0053] The feed of the process device can have two ways, one is to obtain from the upstream process device through the feed pump; in addition, most of the process devices can also obtain through the storage tank as the feed tank. Compared with the discharge pump of the feed tank, the power consumption of the feed pump of the process device is much larger; because in the case of isolated network operation, the power output of the internal power system of the refining enterprise is limited, and the load is relatively large, at this time, the start-stop conversion and power size adjustment of the feed pump will cause large fluctuation of the internal power system power grid of the refining enterprise, and further cause the risk of power grid collapse.

[0054] In the core inventive idea of the embodiment of the application, the reasonable pump stopping scheme and the feed pump power setting scheme of each process device are determined by combining the prediction of isolated network time, the storage capacity of the feed tank and the feed consumption of the process device; the purpose is to reduce the production capacity loss caused by isolated network operation of the refining enterprise as much as possible, and also effectively reduce the start-stop conversion and power adjustment frequency of the feed pump in isolated network operation, so as to reduce the fluctuation of the internal power system power grid of the refining enterprise, thereby reducing the risk of power grid collapse in isolated network operation.

[0055] After the isolated network time is determined, for each process device provided with a feed tank, the current material inventory of the feed tank needs to be obtained, and the material receiving amount of the feed tank in the whole isolated network time period also needs to be calculated; the sum of the material inventory and the material receiving amount is the material providing amount of the feed tank, that is, the total amount of material that the feed tank can provide for the corresponding process device during isolated network operation.

[0056] S13, determining the adaptive power output of the feed pump of the process device according to the material demand amount of the process device and the material providing amount of the feed tank, so as to ensure that the material balance state of the process device reaches the isolated network time;

[0057] For the process device provided with the feed tank, the adaptive power output of the feeding pump of the process device can be determined according to the material supply amount of the feed tank and the material demand amount of the process device, so as to achieve the length of the isolated network in the state of ensuring the material balance of the process device. Specifically, if the material supply amount of the feed tank (storage tank A) of the process device B is 100 tons according to the calculation, and the material consumption amount of the process device during the isolated network operation is only 80 tons (i.e., the material demand amount of the process device B is 80 tons), then the feeding input of the feeding pump is not required to achieve normal operation during the entire isolated network operation. At this time, the adaptive power output of the process device B is 0. Correspondingly, if the material supply amount of the feed tank of the process device C is 80 tons, and the material consumption amount of the process device during the isolated network operation is 100 tons (i.e., the material demand amount of the process device C is 100 tons), then the feeding pump of the process device C needs to provide at least 20 tons of feeding gap amount. According to the feeding amount of the feeding pump during the conventional operation power, the feeding pump is set to a reduced power to determine the adaptive power output (i.e., the adaptive power output) required to complete the feeding gap amount. In actual application, the calculation of the feeding gap amount generally also determines a certain margin after the actual difference is calculated to avoid insufficient feeding supply. For example, if the calculated feeding gap amount is 20 tons, then a certain surplus amount can be added to calculate the adaptive power output of the feeding pump.

[0058] In actual application, the adaptive power output of the feeding pump of each process device during the isolated network period can be determined in the following manner:

[0059] When the material supply amount is greater than the material demand amount, the adaptive power output of the feeding pump of the process device is zero. At this time, the process device can obtain sufficient feeding through the feed tank, and the feeding requirement of the process device can be met during the isolated network operation without feeding through the feeding pump.

[0060] When the material supply amount is greater than 60% of the material demand amount, the adaptive power output of the feeding pump of the process device is 50% of the conventional working power. At this time, the process device can obtain more than 60% of the feeding through the feed tank, and the process device can obtain sufficient feeding as long as the feeding pump outputs 50% of the conventional working power during the isolated network operation.

[0061] When the material supply amount is less than 20% of the material demand amount, the adaptive power output of the feeding pump of the process device is the conventional working power. At this time, the process device can only obtain less than 20% of the feeding through the feed tank, and the feeding pump of the process device needs to be set to the conventional working power to obtain sufficient feeding during the isolated network operation.

[0062] It should be noted that the adaptive power output of the feeding machine pump of each process device in the embodiment of the present application can also be set and adjusted by the person skilled in the art according to experimental data or working experience, and the above example is only one of the preferred schemes in the embodiment of the present application, and is not specifically limited.

[0063] S14, determining the output power of the feeding machine pump of each process device according to the adaptive power output;

[0064] After the isolated network operation occurs, the overall load of the refining enterprise needs to be reduced through measures such as pump stopping and process adjustment, so that the refining enterprise can maintain the operation of production activities under the power supply of its internal power system.

[0065] In order to make the pump stopping and load reduction scheme more reasonable and minimize the loss of production capacity of the refining enterprise, in the embodiment of the present application, after the adaptive power output of each process device is determined, the pump stopping and load reduction scheme can be determined according to the adaptive power output result of each process device; specifically, it can be:

[0066] When the pump is stopped and the load is reduced, the feeding machine pump with an adaptive power output of zero is preferentially stopped. That is, when the adaptive power output of the feeding machine pump of a process device is zero, it means that even if the feeding machine pump does not run, it will not affect the normal production of the corresponding process device. Therefore, preferentially stopping the feeding machine pump with an adaptive power output of zero can effectively reduce the loss of production capacity of the refining enterprise.

[0067] In actual application, considering that the prediction of the isolated network operation duration may be misjudged, causing the isolated network operation duration to be underestimated, in order to be on the safe side, the pump stopping and load reduction scheme can be further optimized, specifically: when the material inventory is greater than the material demand, calculate the margin of the material inventory relative to the material demand; according to the margin, determine the feeding machine pump that needs to be stopped. That is, the feeding machine pump of the process device with more sufficient material supply is preferentially selected to be stopped, so that even if the isolated network operation duration is prolonged, the feeding supply duration of the process device with the stopped pump can be prolonged as much as possible.

[0068] The embodiment of the present application reduces load by stopping the pump and reducing power on one hand, and sets the running state of the feeder pump with zero power output on the other hand to reduce the start-stop conversion of the feeder pump as much as possible, specifically: when the preset number of stopped pumps is reached, the feeder pump with zero power output is also included, and the feeder pump is controlled to maintain the minimum output power of its basic operation. When the preset number of stopped pumps is reached, it means that the load reduction target of the internal power system has been achieved. During the production process of a refinery, there may be a possibility of adjusting the feeder pump, and the start-stop conversion of the feeder pump has a huge impact on the power grid fluctuation during island operation, which is a major hidden danger causing the collapse of the power grid during island operation. In order to reduce the probability of start-stop conversion of the feeder pump, the embodiment of the present application sets the remaining feeder pump with zero power output to maintain the minimum output power after the number of stopped pumps required to achieve the load reduction target, that is, it is maintained in the minimum power output state required for the feeder pump not to stop.

[0069] Preferably, in the pump stopping load reduction scheme of the embodiment of the present application, when the feeder pump with zero power output includes multiple feeder pumps, the corresponding operation mode can also be determined according to the importance of its position and role in the production process; specifically, the feeder pump with lower position and role importance is stopped in priority, and the feeder pump with more important position and role in the production process is set to maintain the minimum output power as much as possible.

[0070] S15, adjust the discharge amount of the feed tank corresponding to the process device to control the material balance of the process device.

[0071] During island operation, the embodiment of the present application no longer mainly adjusts the feed amount of the feeder pump when controlling the material balance of the process device, but adjusts the discharge amount of the feed tank to achieve the material balance of the process device, which greatly reduces the adjustment probability and adjustment range of power adjustment of the feeder pump; since the power of the discharge pump of the storage tank is much smaller than the power of the feeder pump, when the storage tank is used as the feed tank of a process device, the power grid fluctuation caused by adjusting the discharge amount of the feed tank will be much smaller than the power grid fluctuation caused by adjusting the feeder pump. Therefore, the method of adjusting the discharge amount of the feed tank to achieve the material balance of the process device can avoid the large power grid fluctuation caused by the power adjustment of the feeder pump, thereby reducing the risk of power grid collapse caused thereby.

[0072] To sum up, in the embodiment of the present application, firstly, the duration of the isolated network operation is predicted according to the fault reason causing the isolated network operation or the estimated repair time of the fault, so as to obtain the isolated network duration; then, the total amount of material that can be obtained by the feeding tank of the process device during the isolated network operation (i.e., the material supply amount) is calculated through the current material inventory of the feeding tank of each process device and the material receiving amount of the feeding tank during the isolated network operation; after obtaining the material supply amount of the process device, the feeding pump delivery amount of the feeding machine of the process device during the isolated network operation is calculated according to the material demand amount of the process device; the output power of the feeding pump is determined according to the feeding pump delivery amount of the process device, and then the adaptive power output of the feeding pump of each process device is obtained; that is, in the embodiment of the present application, the feeding pump of the process device is used at a reduced power or stopped under the condition of trying to ensure the production capacity of the refining enterprise according to the material supply amount of the feeding tank of the process device; further, the adjusting frequency and adjusting range of the feeding pump can be reduced under the premise of trying to reduce the production loss of the refining enterprise during the isolated network operation, and then the impact of the feeding pump adjustment on the power grid is reduced. Specifically, in the embodiment of the present application, the material balance of the process device is controlled by adjusting the discharge amount of the feeding tank corresponding to the process device during the isolated network operation, so that the start-stop and opening degree adjustment of the feeding pump during the isolated network operation can be minimized, thereby greatly reducing the power grid volatility of the internal power system of the refining enterprise, and further effectively reducing the risk of power grid collapse of the internal power system of the refining enterprise.

[0073] Further, the present application Example The pump stopping and feeding pump power reduction during the isolated network operation can maximize the impact on the overall production capacity of the refining enterprise, and thus can also effectively reduce the economic loss caused by the isolated network.

[0074] Embodiment two

[0075] In another aspect of the embodiment of the present application, a material conveying control device for a refining enterprise is also provided, Figure 2 The structure of the material conveying control device for a refining enterprise provided by the embodiment of the present application is shown in the structure diagram, and the material conveying control device for a refining enterprise is a virtual device Figure 1 The device corresponding to the material conveying control method for a refining enterprise in the corresponding embodiment, that is, the virtual device is realized Figure 1 The material conveying control method for a refining enterprise in the corresponding embodiment constitutes each virtual module of the material conveying control device for a refining enterprise, which can be executed by an electronic device, such as a network device, a terminal device, or a server. Specifically, the material conveying control device for a refining enterprise in the embodiment of the present application comprises:

[0076] The isolated network duration determination unit 01 is configured to determine the isolated network duration when the isolated network operation occurs.

[0077] The storage tank material calculation unit 02 is configured to calculate the material supply amount of the feed tank according to the material inventory of the feed tank of the process device and the material receiving amount of the feed tank within the isolated network duration.

[0078] The machine pump power calculation unit 03 is configured to determine the adaptive power output of the feed machine pump of the process device when the state of ensuring the material balance of the process device reaches the isolated network duration according to the material demand amount of the process device and the material supply amount of the feed tank.

[0079] The machine pump power control unit 04 is configured to control the output power of the feed machine pump of each process device according to the adaptive power output.

[0080] The storage tank discharge control unit 05 is configured to control the material balance of the process device by adjusting the discharge amount of the corresponding feed tank of the process device.

[0081] The working principle and beneficial effects of the material conveying control device for a refining enterprise in the embodiments of the present application have been described in the foregoing Figure 1 The corresponding material conveying control method for a refining enterprise is also described and explained, and thus can be referred to mutually, and will not be described herein again.

[0082] Embodiment Three

[0083] In the embodiments of the present application, a memory is also provided, wherein the memory comprises a software program, and the software program is suitable for a processor to execute Figure 1 each step in the corresponding material conveying control method for a refining enterprise.

[0084] The embodiments of the present application can be realized by means of a software program, that is, by writing a software program (and an instruction set) for realizing Figure 1 each step in the corresponding material conveying control method for a refining enterprise, the software program is stored in a storage device, and the storage device is arranged in a computer device, so that the software program can be called by the processor of the computer device to realize the purpose of the embodiments of the present application.

[0085] Embodiment Four

[0086] The embodiment of the present application also provides a material conveying control device for a refining enterprise, a corresponding computer program product is stored in a memory of the material conveying control device for the refining enterprise, and the program instructions included in the computer program product can make a computer execute the material conveying control method for the refining enterprise described in the above aspects and achieve the same technical effects when the program instructions are executed by the computer.

[0087] Figure 3 FIG. 1 is a schematic diagram of a hardware structure of a material conveying control device for a refining enterprise as an electronic device according to an embodiment of the present application, as shown in the figure, the device includes one or more processors 610, a bus 630 and a memory 620. Taking one processor 610 as an example, the device can also include an input device 640 and an output device 650. Figure 3

[0088] The processor 610, the memory 620, the input device 640 and the output device 650 can be connected through the bus or other means, Figure 3 for example, through the bus connection.

[0089] The memory 620 is a non-transitory computer readable storage medium, which can be used to store non-transitory software programs, non-transitory computer executable programs and modules. The processor 610 executes various function applications and data processing of the electronic device by running the non-transitory software programs, instructions and modules stored in the memory 620, that is, implements the processing method of the above method embodiment.

[0090] The memory 620 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application program required by a function; the data storage area can store data and the like. In addition, the memory 620 can include a high-speed random access memory, and can also include a non-transitory memory, for example, at least one magnetic disk storage device, a flash memory device or other non-transitory solid-state storage device. In some embodiments, the memory 620 can optionally include a memory remotely arranged with respect to the processor 610, and these remote memories can be connected to the processing device through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0091] The input device 640 can receive input digital or character information and generate signal input. The output device 650 can include a display device such as a display screen.

[0092] The one or more modules are stored in the memory 620 and executed by the one or more processors 610 to perform the following steps:

[0093] S11, when the isolated network operation occurs, determining the isolated network duration of the isolated network operation;​

[0094] S12, calculating the material providing amount of the feeding tank according to the material inventory of the feeding tank of the process device and the material receiving amount of the feeding tank within the isolated network time length;

[0095] S13, determining the adaptive power output of the feeding machine pump of the process device according to the material demand amount of the process device and the material providing amount of the feeding tank, when the state of ensuring material balance of the process device reaches the isolated network time length;

[0096] S14, determining the output power of the feeding machine pump of each process device according to the adaptive power output;

[0097] S15, controlling the material balance of the process device through the adjustment of the discharging amount of the corresponding feeding tank of the process device.

[0098] The product can execute the method provided by the embodiments of the application, has the function module and beneficial effects corresponding to the execution method. The technical details not described in detail in the embodiments can be referred to the method provided by the embodiments of the application.

[0099] In several embodiments provided by the present application, it should be understood that the mentioned system, device and method can be implemented by other manners. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0100] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0101] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of software functional unit.

[0102] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the whole or part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage device and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage device includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), ReRAM, MRAM, PCM, NAND Flash, NOR Flash, Memristor, a magnetic disk or an optical disk, and various media that can store program codes.

[0103] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. Such modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A material transfer control method for a refinery, characterized by, The method comprises the steps of: S11, when the isolated network operation occurs, determining the isolated network duration of the isolated network operation; S12, according to the material inventory of the feed tank of the process device and the material receiving amount of the feed tank within the isolated network duration, calculating the material providing amount of the feed tank; the process of the refining enterprise is cooperatively realized by a plurality of process devices; according to the front and back relationship of the process corresponding to the process device in the whole production process, each process device also has a corresponding upstream and downstream relationship; the downstream process device stores the intermediate product oil of the upstream process device as feed; S13, according to the material demand amount of the process device and the material providing amount of the feed tank, determining the adaptive power output of the feeding pump of the process device when the state of ensuring the material balance of the process device reaches the isolated network duration; S14, according to the adaptive power output, determining the output power of the feeding pump of each process device; S15, by adjusting the discharge amount of the feed tank corresponding to the process device, controlling the material balance of the process device.

2. The material conveying control method for a refining enterprise according to claim 1, characterized in that: According to the fault reason causing the isolated network operation and / or the fault repair duration, the isolated network duration is determined.

3. The material transfer control method for a refinery according to claim 2, characterized by, According to the material demand amount of the process device and the material providing amount of the feed tank, the adaptive power output of the feeding pump of the process device when the state of ensuring the material balance of the process device reaches the isolated network duration, comprises: When the material providing amount is greater than the material demand amount, the adaptive power output of the feeding pump of the process device is zero.

4. The material transfer control method for a refinery according to claim 3, characterized by, According to the material demand amount of the process device and the material providing amount of the feed tank, the adaptive power output of the feeding pump of the process device when the state of ensuring the material balance of the process device reaches the isolated network duration, further comprises: When the material providing amount is greater than 60% of the material demand amount, the adaptive power output of the feeding pump of the process device is 50% of the conventional working power.

5. The material transfer control method for a refinery according to claim 4, characterized by, According to the material demand amount of the process device and the material providing amount of the feed tank, the adaptive power output of the feeding pump of the process device when the state of ensuring the material balance of the process device reaches the isolated network duration, further comprises: When the material providing amount is lower than 20% of the material demand amount, the adaptive power output of the feeding pump of the process device is the conventional working power.

6. The material transfer control method for a refinery according to claim 3, characterized by, Further comprising: When the pump is stopped and the load is reduced, the feeding pump with the adaptive power output of zero is preferentially implemented to stop the pump.

7. The material transfer control method for a refinery according to claim 6, characterized by, The pump is stopped and the load is reduced, the feeding pump with the adaptive power output of zero is preferentially implemented to stop the pump, comprising: When the material inventory is greater than the material demand amount, the margin of the material inventory relative to the material demand amount is calculated; According to the margin, the feeding pump that needs to be stopped is determined.

8. The material transfer control method for a refinery according to claim 7, characterized by, Further comprising: When the preset number of pumps is reached, and there is still a feeding pump with the adaptive power output of zero, the feeding pump is controlled to maintain the minimum output power of the basic operation.

9. A material transfer control device for a refinery, characterized by, Comprising: An isolated network duration determination unit is configured to determine the isolated network duration of the isolated network operation when the isolated network operation occurs. The storage tank material calculation unit is configured to calculate a material supply amount of a feed tank of a process device according to a material inventory of the feed tank and a material receiving amount of the feed tank within the isolated network time length; the process of the refining enterprise is cooperatively implemented by a plurality of process devices; according to the front and back relationship of the process corresponding to the process device in the entire production process, each process device also has a corresponding upstream and downstream relationship; the downstream process device stores the intermediate product oil of the upstream process device as feed; The machine pump power calculation unit is configured to determine an adaptive power output of a feed machine pump of the process device according to the material demand amount of the process device and the material supply amount of the feed tank, so as to ensure that the material balance of the process device reaches the isolated network time length; The machine pump power control unit is configured to control the output power of the feed machine pump of each process device according to the adaptive power output; The storage tank discharge control unit is configured to control the material balance of the process device by adjusting the discharge amount of the feed tank corresponding to the process device.

10. A memory, comprising: The software program is adapted to be executed by the processor to perform the steps of the material delivery control method for the refining enterprise according to any one of claims 1 to 8.

11. A material transfer control apparatus for a refinery, characterized by, The computer system comprises a bus, a processor and a memory as claimed in claim 10; The bus is configured to connect the memory and the processor; The processor is configured to execute the instruction set in the memory. The computer system comprises a bus, a processor and a memory as claimed in claim 10; The bus is configured to connect the memory and the processor; The processor is configured to execute the instruction set in the memory.

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