CN109062154B - Sequential control method for feed preprocessor, storage medium and electronic equipment - Google Patents

Abstract

The invention discloses a feeding preprocessor sequential control method, a storage medium and an electronic device, wherein the method comprises the following steps: establishing an equipment database and an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information and equipment state information; acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment; associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information; and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment. According to the method and the device, the device database is established according to the preset process requirements and is associated with the sequence control logic module which is stored in advance and used for controlling the target device, when the device state information in the device database is consistent with the sequence control condition information in the sequence control logic module, the target device is controlled, the sequence control logic can be repeatedly utilized, the efficiency is high, and later maintenance and debugging are facilitated.

Description

Sequential control method for feed preprocessor, storage medium and electronic equipment

Technical Field

The invention relates to the technical field of chemical industry, in particular to a feeding preprocessor sequential control method, a storage medium and electronic equipment.

Background

With the continuous progress of chemical technology, the application of olefin conversion technology is more and more common, and because some poisons which influence the performance of the catalyst, such as oxides, sulfur, carbonyl compounds, water and the like, mixed in the C4/C5/ethylene material exist in the process of olefin conversion, the poisons need to be removed through a feed preprocessor, and the effect of the feed preprocessor directly influences the catalytic property and performance of the feed preprocessor, which is an important guarantee for the stable quality of the whole product. Currently, the feed to an olefin conversion reactor is typically pretreated by two feed pretreaters, one of which is operating normally and the other of which is in a regeneration or stand-by state, the feed pretreaters being purged of retained liquid phase hydrocarbons prior to regeneration and then passed to a hot methane gas regeneration system. Because the catalyst regeneration has a batch reaction characteristic, the normal reaction process of the catalyst regeneration lasts for several days, so that the sequential control (generally called sequential control) of the feed preprocessor is required, and the prior art mainly adopts the following two methods to realize the sequential control of the feed preprocessor:

(1) in a Sequential control Function Chart (SFC) method, all devices to be controlled and a conversion member corresponding to each device to be controlled are integrated in a program segment, and each step in the program segment is executed by detecting whether parameter information of the devices to be controlled meets the conversion member, thereby realizing Sequential control of a feed preprocessor.

(2) The causal relationship corresponding table method realizes process monitoring and step control by configuring sequence control of various loops, such as a safety interlock control sequence and a process monitoring sequence, and filling Y/N (Yes/No) in a table to describe the logic relationship between input signals and output signals.

However, the inventors have discovered in the implementation that the prior feed pretreater sequential control method has the following defects:

(1) when sequential control of a plurality of feeding preprocessors is realized, even when the same equipment and the same control scheme are realized, the SFC method still needs to re-edit program segments, and the reproducibility is poor. And if one error occurs, all the same control schemes need to be modified, so that the configuration time is long, the situations of missed modification and wrong modification are easy to occur, and the efficiency is low.

(2) Because the feeding preprocessor of the olefin conversion reactor needs to control various devices, the operation process and the process steps are complex, and when the feeding preprocessor is subjected to sequential control by adopting a cause-and-effect relationship corresponding table method, a plurality of external control modules are needed to be matched, so that the programming is difficult, the understanding is difficult, and the later maintenance and the debugging are not facilitated.

Disclosure of Invention

The invention aims to overcome the defects that the feeding preprocessor sequential control method in the prior art cannot be repeatedly used, has low efficiency and is not beneficial to later maintenance and debugging, and provides the feeding preprocessor sequential control method, the storage medium and the electronic equipment.

The technical scheme of the invention provides a sequential control method for a feed preprocessor, which comprises the following steps:

establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information and equipment state information;

acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment.

Further, the equipment database includes a valve database and a motor database.

Further, when the device state information is consistent with the compliance condition information in the compliance logic module, controlling the target device further includes:

receiving a start request including device identification information;

and determining the equipment database corresponding to the equipment identification information according to the starting request.

Further, the device database is established in a device management module, and the device management module and the sequence control logic module are independent from each other.

Further, the sequence control step item information and the sequence control condition information are set according to the preset process requirements.

Further, the feed pre-processor comprises a first feed pre-processor and a second feed pre-processor, the sequence step entry information comprises a sequence execution step, the sequence execution step comprises:

pressurizing the first feed preconditioner;

filling the first feed preconditioner;

isolating and small bypassing the first feed preconditioner;

operating the first feed preconditioner and the second feed preconditioner in parallel;

isolating the second feed preconditioner;

draining the second feed preconditioner;

isolating the draining tank;

completely draining the second feed preconditioner;

depressurizing the second feed preconditioner;

confirming the readiness of the stripping circulation pipeline;

queuing the second feed preconditioner and beginning stripping;

completing stripping of the second feed pretreater C4/C5;

isolating the C4/C5 stripping system of the second feed preconditioner;

reducing the pressure of the second feed preconditioner to below the regeneration gas pressure;

liquid feed transport from stripping vessel to fresh/recycle C4/C5 equalization barrel and OCT reactor feed preconditioner drain vessel;

the regeneration gas system confirms readiness;

queuing the second feed pretreater for regeneration and ending heating;

the regeneration gas cools the second feed preconditioner;

the second feed preconditioner is isolated from the regeneration gas system and prepared for on-line.

The present invention provides a storage medium storing computer instructions for performing all of the steps of a feed preprocessor sequencing method as previously described herein when executed by a computer.

The technical scheme of the invention provides electronic equipment, which comprises:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the one processor to cause the at least one processor to:

establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information and equipment state information;

acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment.

After adopting above-mentioned technical scheme, have following beneficial effect: and when the equipment state information in the equipment database is consistent with the sequence control condition information in the sequence control logic module, the target equipment is controlled, the sequence control of the feeding processor is realized, the sequence control logic can be repeatedly utilized, the efficiency is high, and the later maintenance and debugging are facilitated.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

FIG. 1 is a flow chart of a feed preconditioner sequence control method according to an embodiment of the present invention;

FIG. 2 is a flow chart of the operation of a feed preconditioner sequence control method according to an alternative embodiment of the present invention;

FIG. 3 is a workflow diagram of the sequence execution steps of the present invention;

fig. 4 is a schematic diagram of a hardware configuration of an electronic apparatus for performing a feed preprocessor sequential control method according to a fourth embodiment of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings.

It is easily understood that according to the technical solution of the present invention, those skilled in the art can substitute various structures and implementation manners without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

Example one

Referring to fig. 1, fig. 1 is a flowchart illustrating a method for sequencing a feed preconditioner according to an embodiment of the present invention, including:

step S101: establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information;

step S102: acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

step S103: associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

step S104: and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment.

Specifically, the sequential control method of the feed preprocessor of the present invention may be executed by a Programmable Logic Controller (PLC), or may be executed by a server with a built-in control chip.

The equipment database is used for describing the state of the equipment in each sequence control execution step, the equipment database is established in the equipment management module, and the equipment management module and the sequence control logic module are mutually independent, so that the equipment management and the sequence control logic are separated, and the later maintenance and debugging are facilitated.

The sequence control logic module comprises sequence control step entry information and sequence control condition information, the sequence control step entry information is used for describing sequence control step numbers required by the feeding preprocessor in sequence control and the operation to be executed by each sequence control step number, the sequence control condition information is used for describing the conditions to be met by equipment in each sequence control step number, and the sequence control step entry information and the sequence control condition information are set according to preset process requirements. And when the equipment state information is consistent with the sequence control condition information, controlling the target equipment to perform corresponding operation, and when all sequence control steps in the sequence control logic module are executed, indicating that the sequence control is successfully executed.

According to the feeding preprocessor sequence control method provided by the invention, the equipment database is established according to the preset process requirements and is associated with the sequence control logic module which is stored in advance and used for controlling the target equipment, and when the equipment state information in the equipment database is consistent with the sequence control condition information in the sequence control logic module, the target equipment is controlled, so that the sequence control of the feeding processor is realized, the sequence control logic can be repeatedly utilized, the efficiency is high, and the later maintenance and debugging are facilitated.

Example two

As shown in fig. 2, fig. 2 is a flow chart of a feed preprocessor sequential control method according to an alternative embodiment of the present invention, which includes:

step S201: establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information;

step S202: acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

step S203: associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

step S204: receiving a start request including device identification information;

step S205: determining the equipment database corresponding to the equipment identification information according to the starting request;

step S206: and when the equipment state information is consistent with the sequence control condition information, controlling the target equipment.

Specifically, the equipment database includes a valve database and a motor database, and since each feed preprocessor includes a plurality of valves and motors, the equipment database can record the states of all the equipment in each sequence executing step, and also can record the states of a certain equipment in each sequence executing step, as shown in table 1, table 1 is a valve database, wherein O represents open valve, and C represents close valve. It should be noted that table 1 is only representative of some of the valve databases and is not representative of all of the valve databases in the feed preconditioner.

TABLE 1

Device name

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

UV-405A

O

O

O

O

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

UV-407A

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

UV-410A

O

O

O

O

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

When a start request including equipment identification information is received, determining an equipment database corresponding to the equipment identification information, such as a valve database or a motor database, and then performing sequence control according to a sequence control execution step in a sequence control logic module, where the feed preprocessor includes a first feed preprocessor and a second feed preprocessor, as shown in fig. 3, the sequence control execution step includes:

step 301: pressurizing the first feed preconditioner;

step 302: filling the first feed preconditioner;

step 303: isolating and small bypassing the first feed preconditioner;

step 304: operating the first feed preconditioner and the second feed preconditioner in parallel;

step 305: isolating the second feed preconditioner;

step 306: draining the second feed preconditioner;

step 307: isolating the draining tank;

step 308: completely draining the second feed preconditioner;

step 309: depressurizing the second feed preconditioner;

step 310: confirming the readiness of the stripping circulation pipeline;

step 311: queuing the second feed preconditioner and beginning stripping;

step 312: completing stripping of the second feed pretreater C4/C5;

step 313: isolating the C4/C5 stripping system of the second feed preconditioner;

step 314: reducing the pressure of the second feed preconditioner to below the regeneration gas pressure;

step 315: liquid feed transport from stripping vessel to fresh/recycle C4/C5 equalization barrel and OCT reactor feed preconditioner drain vessel;

step 316: the regeneration gas system confirms readiness;

step 317: queuing the second feed pretreater for regeneration and ending heating;

step 318: the regeneration gas cools the second feed preconditioner;

step 319: the second feed preconditioner is isolated from the regeneration gas system and prepared for on-line.

According to the feeding preprocessor sequence control method provided by the invention, the equipment database is established according to the preset process requirements and is associated with the sequence control logic module which is stored in advance and used for controlling the target equipment, and when the equipment state information in the equipment database is consistent with the sequence control condition information in the sequence control logic module, the target equipment is controlled, so that the sequence control of the feeding processor is realized, the sequence control logic can be repeatedly utilized, the efficiency is high, and the later maintenance and debugging are facilitated.

EXAMPLE III

A third embodiment of the present invention provides a storage medium storing computer instructions which, when executed by a computer, perform all of the steps of a feed pre-processor sequence control method as previously described.

Example four

As shown in fig. 4, fig. 4 is a schematic diagram of a hardware structure of an electronic device for performing a sequential control method of a feed pre-processor according to a fourth embodiment of the present invention, which mainly includes: at least one processor 41; and, a memory 42 communicatively coupled to the at least one processor 41; wherein the memory 42 stores instructions executable by the one processor 41, the instructions being executable by the at least one processor 41 to enable the at least one processor 41 to perform the method flows as shown in fig. 1-3.

The electronic apparatus for performing a feed preconditioner sequence control method may further comprise: an input device 43 and an output device 44.

The processor 41, the memory 42, the input device 43 and the output device 44 may be connected by a bus or other means, and fig. 4 illustrates the bus connection.

Memory 42, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the feed preprocessor sequencing method in the embodiments of the present application, for example, the method flows shown in fig. 1-3. The processor 41 implements the feed preprocessor sequencing method of the above embodiments by executing non-volatile software programs, instructions, and modules stored in the memory 42 to perform various functional applications and data processing.

The memory 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the stored data area may store data created by use of the feed preprocessor sequencing method, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 42 optionally includes memory located remotely from processor 41, and these remote memories may be connected via a network to a device that performs the feed preprocessor sequencing method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Input device 43 may receive input user clicks and generate signal inputs related to user settings and functional control of the feed pre-processor sequencing method. The output device 44 may include a display device such as a display screen.

The feed preprocessor sequencing method of any of the method embodiments described above is performed when the one or more modules are stored in memory 42 and executed by the one or more processors 41.

The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the methods provided in the embodiments of the present application.

The electronic device of embodiments of the present invention exists in a variety of forms, including but not limited to:

(1) an Electronic Control Unit (ECU) is also called a "traveling computer" or a "vehicle-mounted computer". The digital signal processor mainly comprises a microprocessor (CPU), a memory (ROM and RAM), an input/output interface (I/O), an analog-to-digital converter (A/D), a shaping circuit, a driving circuit and other large-scale integrated circuits.

(2) A mobile communication device: such devices are characterized by mobile communications capabilities and are primarily targeted at providing voice, data communications. Such terminals include: smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.

(3) Ultra mobile personal computer device: the equipment belongs to the category of personal computers, has calculation and processing functions and generally has the characteristic of mobile internet access. Such terminals include: PDA, MID, and UMPC devices, etc.

(4) A portable entertainment device: such devices can display and play multimedia content. This type of device comprises: audio, video players (e.g., ipods), handheld game consoles, electronic books, and smart toys and portable car navigation devices.

(5) A server: the device for providing the computing service comprises a processor, a hard disk, a memory, a system bus and the like, and the server is similar to a general computer architecture, but has higher requirements on processing capacity, stability, reliability, safety, expandability, manageability and the like because of the need of providing high-reliability service.

(6) And other electronic devices with data interaction functions.

Furthermore, the logic instructions in the memory 42 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a mobile terminal (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by software plus a necessary general hardware server, and of course, can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims (8)

1. A feed preconditioner sequence control method, comprising:

establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information and equipment state information;

acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment.

2. A feed preconditioner sequence control method as set forth in claim 1, wherein said equipment database includes a valve database and a motor database.

3. A feed preconditioner sequence control method as set forth in claim 2, wherein said controlling said target equipment when said equipment status information corresponds with sequence condition information in said sequence logic module, further comprises:

receiving a start request including device identification information;

and determining the equipment database corresponding to the equipment identification information according to the starting request.

4. A feed preconditioner sequence control method as set forth in claim 1, wherein said equipment database is established in an equipment management module independent of said sequence control logic module.

5. A feed preconditioner sequence control method as set forth in claim 1, wherein said sequence step entry information and said sequence condition information are set in accordance with said preset process requirements.

6. A feed preconditioner sequence method as set forth in claim 1, said feed preconditioner comprising a first feed preconditioner and a second feed preconditioner, said sequence step entry information comprising sequence execution steps comprising:

pressurizing the first feed preconditioner;

filling the first feed preconditioner;

isolating and small bypassing the first feed preconditioner;

operating the first feed preconditioner and the second feed preconditioner in parallel;

isolating the second feed preconditioner;

draining the second feed preconditioner;

isolating the draining tank;

completely draining the second feed preconditioner;

depressurizing the second feed preconditioner;

confirming the readiness of the stripping circulation pipeline;

queuing the second feed preconditioner and beginning stripping;

completing stripping of the second feed pretreater C4/C5;

isolating the C4/C5 stripping system of the second feed preconditioner;

reducing the pressure of the second feed preconditioner to below the regeneration gas pressure;

liquid feed transport from stripping vessel to fresh/recycle C4/C5 equalization barrel and OCT reactor feed preconditioner drain vessel;

the regeneration gas system confirms readiness;

queuing the second feed pretreater for regeneration and ending heating;

the regeneration gas cools the second feed preconditioner;

the second feed preconditioner is isolated from the regeneration gas system and prepared for on-line.

7. A storage medium storing computer instructions for performing all the steps of a feed preprocessor sequencing method according to any one of claims 1 to 6 when executed by a computer.

8. An electronic device, comprising:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the one processor to cause the at least one processor to:

establishing an equipment database according to preset process requirements, wherein the equipment database comprises equipment step entry information and equipment state information;

acquiring pre-stored sequence control step item information in a sequence control logic module for controlling target equipment;

associating the sequence control logic module with the equipment database according to the equipment step entry information and the sequence control step entry information;

and when the equipment state information is consistent with the sequence control condition information in the sequence control logic module, controlling the target equipment.