A multi-impulse control system, method, apparatus, and storage medium

Abstract

The application discloses a multi-impulse control system, method, device and storage medium, relates to the field of boiler control, and comprises a signal determination module, a device adjustment module, a state judgment module and a command execution module.The signal determination module is used for collecting device signals of a device to be controlled and determining steam quantity information.The device adjustment module is used for determining a current steam pressure based on the steam quantity information, and determining whether the damper opening needs to be adjusted based on the current steam pressure and the device signals.The state judgment module is used for adjusting the damper to a corresponding opening based on a preset damper adjustment rule when the damper opening needs to be adjusted, and judging whether vacuum re-damping is stable.The command execution module is used for adjusting the feed water quantity, and executing a steam pressure PID automatic operation instruction and a boiler liquid level three-impulse PID automatic operation instruction after the vacuum re-damping is stable, so as to ensure that the steam pressure and the boiler liquid level remain stable.In this way, the steam pressure and the boiler liquid level can be controlled in combination with the collected device signals, signal hysteresis is eliminated, and the steam pressure and the boiler liquid level remain stable.

Description

Technical Field

[0001] This invention relates to the field of boiler control, and in particular to a multi-impulse control system, method, device and storage medium. Background Technology

[0002] Multi-impulse research is based on the three-impulse control of boilers (steam drum liquid level, feedwater flow, and steam flow). It adds start-stop signals of steam-using equipment, steam flow of steam-using equipment, and fuel flow of steam-using equipment. After certain logical operations, it controls the feedwater actuator (such as a frequency converter) and the load regulator (controlling the burner damper) to achieve the effect of automatic matching of the above parameters. This allows the system to adapt to changes in steam flow and keep the boiler pressure and liquid level stable within the allowable range.

[0003] However, in the existing technology, when the steam consumption of the silk-making equipment suddenly increases, the delayed response of the boiler host to adjust the steam pressure and control the boiler liquid level can easily lead to large fluctuations in the steam pressure of the boiler system. Furthermore, when the feedwater is regulated by the existing single-impulse system or three-impulse system, the water level fluctuates greatly, which can make the boiler liquid level unstable and affect the safe operation of the equipment. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a multi-impulse control system, method, device, and storage medium that can combine acquired device signals to control steam pressure and boiler liquid level, eliminate signal lag, and maintain stable steam pressure and boiler liquid level. The specific solution is as follows:

[0005] In a first aspect, this application discloses a multi-impulse control system, comprising:

[0006] The signal determination module is used to collect equipment signals from the equipment to be controlled and determine the steam quantity information;

[0007] The equipment adjustment module is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signal.

[0008] The status judgment module is used to adjust the damper to the corresponding opening degree based on the preset damper adjustment rules when the damper opening degree needs to be adjusted, and to determine whether the vacuum rehumidification is stable.

[0009] The instruction execution module is used to adjust the water supply and, after the vacuum rehumidification stabilizes, executes the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction to ensure that the steam pressure and boiler liquid level remain stable.

[0010] Optionally, the multi-impulse control system may further include:

[0011] The system switching module is used to determine whether normal equipment signals can be collected. If the equipment signals cannot be collected or the collected equipment signals are abnormal, the system will automatically switch the multi-impulse control system to the single-impulse control system or switch the multi-impulse control system to the single-impulse control system after receiving a system switching command.

[0012] Optionally, the signal determination module includes:

[0013] The steam quantity information determination unit is used to collect the equipment signal of the equipment to be controlled, collect the actual steam consumption and steam production of the steam-using equipment in the multi-impulse control system, and determine the target pipe loss based on the difference between the actual steam consumption and the steam production.

[0014] Optionally, the device adjustment module includes:

[0015] A steam pressure determination unit is used to determine the current steam pressure based on the determined target pipe loss, the actual steam consumption, and the steam production.

[0016] The equipment adjustment unit is used to determine whether the damper opening needs to be adjusted based on the current steam pressure, the vacuum rehumidification start / stop signal in the equipment signals, and the gas flow signal in the equipment signals.

[0017] Optionally, the multi-impulse control system may further include:

[0018] The damper parameter determination unit is used to determine the target damper opening based on the gas flow signal in the equipment signal.

[0019] Optionally, the status determination module includes:

[0020] The first damper adjustment unit is used to increase the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is an open signal.

[0021] The second damper adjustment unit is used to reduce the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is a stop signal.

[0022] Optionally, the instruction execution module includes:

[0023] The first instruction execution unit is used to forcibly increase the water supply when the signal type of the vacuum rehumidification start / stop signal is an open signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

[0024] The second instruction execution unit is used to forcibly reduce the water supply when the signal type of the vacuum rehumidification start / stop signal is a stop signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

[0025] Secondly, this application discloses a multi-impulse control method, including:

[0026] Collect equipment signals from the equipment to be controlled and determine the steam quantity information;

[0027] The current steam pressure is determined based on the steam volume information, and the damper opening is determined based on the current steam pressure and the equipment signal.

[0028] When it is necessary to adjust the damper opening, the damper is adjusted to the corresponding opening based on the preset damper adjustment rules, and it is determined whether the vacuum rehumidification is stable.

[0029] Adjust the water supply, and after the vacuum rehumidification stabilizes, execute the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command to ensure that the steam pressure and boiler liquid level remain stable.

[0030] Thirdly, this application discloses an electronic device, including:

[0031] Memory, used to store computer programs;

[0032] A processor is used to execute the computer program to implement the aforementioned multi-impulse control method.

[0033] Fourthly, this application discloses a computer-readable storage medium for storing a computer program, which, when executed by a processor, implements the multi-impulse control method as described above.

[0034] In this application, the signal determination module is used to collect equipment signals from the device to be controlled and determine steam quantity information; the equipment adjustment module is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signals; the status judgment module is used to adjust the damper to the corresponding opening based on a preset damper adjustment rule when the damper opening needs to be adjusted, and to determine whether the vacuum rehumidification is stable; the instruction execution module is used to adjust the feedwater flow, and after the vacuum rehumidification stabilizes, to execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction to ensure that the steam pressure and boiler liquid level remain stable. Therefore, this application can collect equipment signals through the above modules, and after determining the current steam pressure, combine the collected equipment signals to determine whether to adjust the damper opening, and combine the stable vacuum rehumidification state with the equipment signals to execute automatic operation instructions to ensure that the steam pressure and boiler liquid level remain stable. In this way, the collected equipment signals can be combined to maintain the stability of steam pressure and boiler liquid level, avoiding fluctuations in steam pressure and boiler liquid level caused by the inability to determine the real-time status of the equipment due to signal lag. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 This application provides a schematic diagram of the structure of a multi-impulse control system device;

[0037] Figure 2 A schematic diagram of a specific multi-impulse control system device is provided for this application;

[0038] Figure 3 A schematic diagram of a multi-impulse control system provided in this application;

[0039] Figure 4 A schematic diagram of a multi-impulse control method provided in this application;

[0040] Figure 5 This application provides a structural diagram of an electronic device. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the prior art, when using a single-impulse system or a multi-impulse system to control steam equipment, when the steam consumption of the filament-making equipment suddenly increases, the delayed response of the boiler host in adjusting the steam pressure and the boiler liquid level control can easily lead to large fluctuations in the steam pressure of the boiler system. Furthermore, when using the existing single-impulse system or three-impulse system for feedwater regulation, the water level fluctuates greatly, which can cause the boiler liquid level to be unstable and affect the safe operation of the equipment.

[0043] To overcome the above-mentioned technical problems, this application provides a multi-impulse control system that can combine the collected equipment signals to control the steam pressure and boiler liquid level, eliminate signal lag, and keep the steam pressure and boiler liquid level stable.

[0044] See Figure 1 As shown, an embodiment of the present invention discloses a multi-impulse control system, comprising:

[0045] The signal determination module 11 is used to collect equipment signals from the equipment to be controlled and determine the steam quantity information.

[0046] In this embodiment, it is necessary to collect equipment signals from the devices to be controlled. These devices include, but are not limited to, steam-consuming equipment and gas-fired equipment. The equipment signals include, but are not limited to, start signals, stop signals, and running signals from the devices to be controlled. After collecting the equipment signals, it is necessary to determine the steam volume information of the boiler system during operation. This steam volume information includes, but is not limited to, steam flow rate, actual steam consumption, and steam production. It should be noted that after collecting the equipment signals, the equipment in the boiler system can be controlled in conjunction with these signals. This avoids fluctuations in steam pressure and boiler liquid level caused by the inability to determine the real-time status of the equipment due to signal lag.

[0047] Furthermore, the multi-impulse control system in this application may also include a system switching module, used to determine whether normal equipment signals can be acquired. If the equipment signals cannot be acquired or the acquired equipment signals are abnormal, the multi-impulse control system is automatically switched to a single-impulse control system, or the multi-impulse control system is switched to the single-impulse control system upon receiving a system switching command. That is, the multi-impulse control system in this application has a system switching function. To ensure the safe operation of the boiler, when a signal acquisition failure occurs in the multi-impulse control system, the system can switch to a single-impulse control system manually or automatically. Specifically, if no equipment signals are acquired, or if the acquired equipment signals contain equipment fault signals, it indicates that the equipment may be damaged. In this case, the multi-impulse control system can immediately switch to a single-impulse control system automatically, or when the operator discovers a suspected fault type, the multi-impulse control system can be manually switched to a single-impulse control system. In this way, the safe operation of the boiler can be ensured when equipment malfunctions.

[0048] The equipment adjustment module 12 is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signal.

[0049] In this embodiment, the pipe loss in the boiler equipment can be determined based on the actual steam consumption and steam production from the determined steam quantity information. It should be noted that the pipe loss is the difference between the actual steam consumption and the steam production. After obtaining the pipe loss, the current steam pressure in the boiler equipment needs to be determined using the pipe loss, actual steam consumption, and steam production. This, combined with the collected equipment signals, determines whether the damper opening needs to be adjusted to ensure stable vacuum rehumidification. It should be noted that vacuum rehumidification is a smoke-generating process, and if the damper opening is not adjusted in time, the steam pressure in the equipment may become too high, affecting the stability of vacuum rehumidification and potentially impacting equipment safety.

[0050] The status judgment module 13 is used to adjust the damper to the corresponding opening degree based on the preset damper adjustment rules when the damper opening degree needs to be adjusted, and to judge whether the vacuum rehumidification is stable.

[0051] In this embodiment, when the steam pressure in the equipment is too high, affecting the stability of vacuum rehumidification or the safety of the equipment, the damper opening needs to be adjusted according to the current steam pressure. It should be noted that the damper opening adjustment must be based on a preset damper opening adjustment rule. That is, when the vacuum rehumidification start / stop signal is an open signal, it indicates that the current damper opening is too small and needs to be increased to the target damper opening; when the vacuum rehumidification start / stop signal is a stop signal, it indicates that the current damper opening is too large and needs to be decreased to the target damper opening. Furthermore, the target damper opening needs to be determined based on the steam flow signal in the equipment signals, and when the damper opening reaches the target damper opening, it is necessary to determine whether the vacuum rehumidification is stable in order to determine whether the water supply adjustment is needed.

[0052] The instruction execution module 14 is used to adjust the water supply and execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction after the vacuum rehumidification is stable, so as to ensure that the steam pressure and boiler liquid level remain stable.

[0053] In this embodiment, the feedwater flow needs to be adjusted based on the signal type of the vacuum rehumidification start / stop signal. After the vacuum rehumidification signal stabilizes, the steam pressure PID automatic operation command and the boiler level three-impulse PID automatic operation command are executed. That is, the signal type of the vacuum rehumidification start / stop signal is first determined. If the signal type of the vacuum rehumidification start / stop signal is an open signal, the feedwater flow needs to be forcibly increased. After the vacuum rehumidification reaches a stable state, the steam pressure PID automatic operation command and the boiler level three-impulse PID automatic operation command are executed to ensure that the steam pressure and boiler level remain stable. If the signal type of the vacuum rehumidification start / stop signal is a stop signal, the feedwater flow needs to be forcibly reduced. After the vacuum rehumidification reaches a stable state, the steam pressure PID automatic operation command and the boiler level three-impulse PID automatic operation command are executed to ensure that the steam pressure and boiler level remain stable. In this way, the feedwater flow can be adjusted by combining the vacuum rehumidification start-stop signal, and after the vacuum rehumidification stabilizes, the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command can be executed to keep the steam pressure and boiler liquid level stable, thereby improving the reliability of this application.

[0054] In this embodiment, the signal determination module is used to collect equipment signals from the device to be controlled and determine steam quantity information; the equipment adjustment module is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signals; the status judgment module is used to adjust the damper to the corresponding opening based on a preset damper adjustment rule when the damper opening needs to be adjusted, and to determine whether the vacuum rehumidification is stable; the instruction execution module is used to adjust the feedwater flow, and after the vacuum rehumidification stabilizes, to execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction to ensure that the steam pressure and boiler liquid level remain stable. Therefore, this application can collect equipment signals through the above modules, and after determining the current steam pressure, combine the collected equipment signals to determine whether to adjust the damper opening, and combine the stable vacuum rehumidification state with the equipment signals to execute automatic operation instructions to ensure that the steam pressure and boiler liquid level remain stable. In this way, the collected equipment signals can be combined to maintain the stability of steam pressure and boiler liquid level, avoiding fluctuations in steam pressure and boiler liquid level caused by the inability to determine the real-time status of the equipment due to signal lag.

[0055] See Figure 2 As shown, an embodiment of the present invention discloses a multi-impulse control system, comprising:

[0056] The steam quantity information determination unit 21 is used to collect equipment signals of the equipment to be controlled, and to collect the actual steam consumption and steam production of the steam-using equipment in the multi-impulse control system, and to determine the target pipe loss based on the difference between the actual steam consumption and the steam production.

[0057] In this embodiment, it is necessary to collect the device signal of the device to be controlled. It should be noted that, in conjunction with Figure 3 As shown, the uses of the collected equipment signals are as follows: The start-stop signal (e) of the steam-using equipment is fed back to the combustion controller for logical operations. The combustion controller signal (d) plus the start-stop signal (e) of the vacuum rehumidification equipment multiplied by the change value (d1) of the combustion controller is used to control the combustion status of the combustion chamber. The combustion status of the burner controls the evaporation rate of water in the boiler. The multi-impulse control system can automatically match the evaporation rate with the steam consumption, thus ensuring the stability of boiler pressure and water level. The steam drum liquid level signal (a) minus the steam consumption signals (f) of other steam-using equipment minus the steam flow signal (b) of the vacuum rehumidification equipment plus the feedwater flow signal (c) plus the start-stop signal (e) of the vacuum rehumidification equipment multiplied by the change value (d1) of the feedwater flow signal can control the frequency parameters of the feedwater inverter.

[0058] It should be noted that while collecting the signal of the controlled equipment, it is also necessary to collect the steam quantity information of the steam-consuming equipment in the multi-impulse control system, such as the actual steam consumption and steam production. The target pipe loss is obtained by subtracting the actual steam consumption from the steam production. In this application, the target pipe loss is the steam loss.

[0059] Steam pressure determination unit 22 is used to determine the current steam pressure based on the determined target pipe loss, the actual steam consumption, and the steam production.

[0060] In this embodiment, the current steam pressure needs to be determined based on the target pipe loss, actual gas consumption, and steam production. It should be noted that the steam pressure and steam production are directly proportional; the greater the steam production, the greater the steam pressure. After obtaining the current steam pressure, it needs to be fed back to the multi-impulse control system so that the multi-impulse control system can adjust the boiler equipment based on the current steam pressure.

[0061] The equipment adjustment unit 23 is used to determine whether the damper opening needs to be adjusted based on the current steam pressure, the vacuum rehumidification start / stop signal in the equipment signal, and the gas flow signal in the equipment signal.

[0062] In this embodiment, it is necessary to determine whether the damper opening needs to be adjusted based on the current steam pressure, the signal type after vacuum rehumidification stabilization, and the gas flow signal. After acquiring the gas flow signal, the target damper opening can be calculated based on the gas flow signal. The target damper opening is a standard value of the damper opening and can be used as a reference for adjusting the damper opening. It should be noted that the damper opening adjustment is for adjusting the steam pressure, and the steam pressure is related to the steam flow, which in turn is related to the steam-using equipment. Therefore, it is necessary to ensure stable steam flow, that is, stable steam pressure. Furthermore, adjusting the damper opening requires pre-calculating the time for the damper valve to go from fully open to fully closed, and calculating the time required to increase or decrease the valve by one degree. In this way, after obtaining the damper opening to be adjusted, effective timing can be performed, making the multi-impulse control system in this application more accurate.

[0063] The first damper adjustment unit 24 is used to increase the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is an open signal.

[0064] In this embodiment, the damper opening needs to be adjusted in conjunction with the signal type of the vacuum rehumidification start / stop signal. If the signal type of the vacuum rehumidification start / stop signal is an open signal, it is necessary to determine the degree that needs to be adjusted between the current damper opening and the target damper opening, so as to determine the adjustment time. After determining the adjustment time, a countdown is started, and the damper is forcibly increased to the target damper opening.

[0065] The second damper adjustment unit 25 is used to reduce the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is a stop signal.

[0066] In this embodiment, if the signal type of the vacuum rehumidification start / stop signal is stop, it is necessary to determine the degree that needs to be adjusted between the current damper opening and the target damper opening, so as to determine the adjustment time. After determining the adjustment time, a countdown is started, and the damper is forcibly reduced to the target damper opening.

[0067] The first instruction execution unit 26 is used to forcibly increase the water supply when the signal type of the vacuum rehumidification start / stop signal is an open signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

[0068] In this embodiment, if the signal type of the vacuum rehumidification start / stop signal is an open signal, the water supply will be forcibly increased during the forced increase of the damper opening so that after the vacuum rehumidification enters a stable state, the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command will be executed to maintain the current stable state of the steam pressure and boiler liquid level, so that the steam pressure and boiler liquid level remain stable.

[0069] The second instruction execution unit 27 is used to forcibly reduce the water supply when the signal type of the vacuum rehumidification start / stop signal is a stop signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

[0070] In this embodiment, if the signal type of the vacuum rehumidification start / stop signal is a stop signal, the feedwater volume is forcibly reduced during the forced reduction of the damper opening so that after the vacuum rehumidification enters a stable state, the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command are executed to maintain the current stable state of the steam pressure and boiler liquid level, so that the steam pressure and boiler liquid level remain stable.

[0071] Therefore, in this embodiment, after determining the current steam pressure, it is necessary to combine the current steam pressure, the vacuum rehumidification start / stop signal, and the steam flow signal to determine whether the damper opening needs to be adjusted. If the damper opening needs to be adjusted, it is adjusted in conjunction with the vacuum rehumidification start / stop signal, and the feedwater flow is adjusted accordingly to keep the steam pressure and boiler liquid level stable. In this way, by controlling the boiler equipment in conjunction with the collected equipment signals, the boiler equipment can be adjusted in real time, avoiding the instability of steam pressure and boiler liquid level caused by the lag in equipment signals.

[0072] See Figure 4 As shown, an embodiment of the present invention discloses a multi-impulse control method, comprising:

[0073] S11. Collect equipment signals from the equipment to be controlled and determine the steam quantity information;

[0074] S12. Determine the current steam pressure based on the steam volume information, and determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signal;

[0075] S13. When it is necessary to adjust the damper opening, the damper is adjusted to the corresponding opening based on the preset damper adjustment rules, and it is determined whether the vacuum rehumidification is stable.

[0076] S14. Adjust the water supply, and after the vacuum rehumidification stabilizes, execute the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command to ensure that the steam pressure and boiler liquid level remain stable.

[0077] For a more detailed description of steps S11 to S14, please refer to the foregoing embodiments, which will not be repeated here.

[0078] Therefore, this application first collects the equipment signals of the device to be controlled and determines the steam quantity information. The equipment adjustment module is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signals. If the damper opening needs to be adjusted, the damper is adjusted to the corresponding opening based on the preset damper adjustment rules. The module also determines whether the vacuum rehumidification is stable and adjusts the water supply. After the vacuum rehumidification is stable, the application executes the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command to ensure that the steam pressure and boiler liquid level remain stable. Thus, this application can collect equipment signals through the above module, and after determining the current steam pressure, combine the collected equipment signals to determine whether to adjust the damper opening. It also combines the stable vacuum rehumidification state with the equipment signals to execute automatic operation commands to ensure that the steam pressure and boiler liquid level remain stable. In this way, the collected equipment signals can be used to maintain the stability of the steam pressure and boiler liquid level, avoiding fluctuations in steam pressure and boiler liquid level caused by the inability to determine the real-time status of the equipment due to signal lag.

[0079] In some embodiments, the multi-impulse control method may further include:

[0080] The system determines whether a normal device signal can be acquired. If the device signal cannot be acquired or the acquired device signal is abnormal, the system automatically switches the multi-impulse control system to a single-impulse control system or switches the multi-impulse control system to the single-impulse control system after receiving a system switching command.

[0081] In some embodiments, the acquisition of equipment signals from the device to be controlled and the determination of steam quantity information may specifically include:

[0082] The device signal of the device to be controlled is collected, and the actual steam consumption and steam production of the steam-using equipment in the multi-impulse control system are collected. The target pipe loss is determined based on the difference between the actual steam consumption and the steam production.

[0083] In some embodiments, determining the current steam pressure based on the steam quantity information, and determining whether to adjust the damper opening based on the current steam pressure and the equipment signal, may specifically include:

[0084] The current steam pressure is determined based on the determined target pipe loss, the actual steam consumption, and the steam production.

[0085] Based on the current steam pressure, the vacuum rehumidification start / stop signal in the equipment signals, and the gas flow rate signal in the equipment signals, determine whether it is necessary to adjust the damper opening.

[0086] In some embodiments, the multi-impulse control method may further include:

[0087] The target damper opening is determined based on the gas flow signal in the equipment signal.

[0088] In some embodiments, when it is necessary to adjust the damper opening, the damper is adjusted to the corresponding opening based on a preset damper adjustment rule, and it is determined whether the vacuum rehumidification is stable. Specifically, this may include:

[0089] When the signal type of the vacuum rehumidification start / stop signal is an open signal, the damper opening is increased to the target damper opening.

[0090] When the signal type of the vacuum rehumidification start / stop signal is a stop signal, the damper opening is reduced to the target damper opening.

[0091] In some embodiments, adjusting the feedwater flow rate and executing the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command after the vacuum rehumidification stabilizes, to ensure that the steam pressure and boiler liquid level remain stable, may specifically include:

[0092] When the signal type of the vacuum rehumidification start / stop signal is an open signal, the water supply is forcibly increased until the vacuum rehumidification enters a stable state, and then the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command are executed.

[0093] When the vacuum rehumidification start / stop signal is a stop signal, the water supply is forcibly reduced until the vacuum rehumidification enters a stable state, and then the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command are executed.

[0094] Furthermore, embodiments of this application also disclose an electronic device, Figure 5 This is a structural diagram of an electronic device 30 according to an exemplary embodiment. The content of the diagram should not be construed as limiting the scope of this application.

[0095] Figure 5 This is a schematic diagram of the structure of an electronic device 30 provided in an embodiment of this application. Specifically, the electronic device 30 may include: at least one processor 31, at least one memory 32, a power supply 33, a communication interface 34, an input / output interface 35, and a communication bus 36. The memory 22 stores a computer program, which is loaded and executed by the processor 21 to implement the relevant steps in the multi-impulse control system disclosed in any of the foregoing embodiments. Furthermore, the electronic device 30 in this embodiment may specifically be an electronic computer.

[0096] In this embodiment, the power supply 33 is used to provide operating voltage for each hardware device on the electronic device 30; the communication interface 34 can create a data transmission channel between the electronic device 30 and external devices, and the communication protocol it follows can be any communication protocol applicable to the technical solution of this application, and is not specifically limited here; the input / output interface 35 is used to acquire external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs, and is not specifically limited here.

[0097] In addition, the memory 32, as a carrier for resource storage, can be a read-only memory, random access memory, disk, or optical disk, etc. The resources stored thereon can include an operating system 321, computer programs 322, etc., and the storage method can be temporary storage or permanent storage.

[0098] The operating system 321 is used to manage and control the various hardware devices on the electronic device 30 and the computer program 322, which may be Windows Server, Netware, Unix, Linux, etc. In addition to including a computer program capable of performing the multi-impulse control system executed by the electronic device 30 as disclosed in any of the foregoing embodiments, the computer program 322 may further include a computer program capable of performing other specific tasks.

[0099] Furthermore, this application also discloses a computer-readable storage medium for storing a computer program; wherein, when the computer program is executed by a processor, it implements the aforementioned disclosed multi-impulse control system. Specific steps of this system can be found in the corresponding content disclosed in the foregoing embodiments, and will not be repeated here.

[0100] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0101] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0102] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0103] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0104] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multi-impulse control system, characterized in that, include: The signal determination module is used to collect equipment signals from the equipment to be controlled and determine the steam quantity information; The equipment adjustment module is used to determine the current steam pressure based on the steam quantity information, and to determine whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signal. The status judgment module is used to adjust the damper to the corresponding opening degree based on the preset damper adjustment rules when the damper opening degree needs to be adjusted, and to determine whether the vacuum rehumidification is stable. The instruction execution module is used to adjust the water supply, and after the vacuum rehumidification stabilizes, it executes the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction to ensure that the steam pressure and boiler liquid level remain stable. The device adjustment module includes: A steam pressure determination unit is used to determine the current steam pressure based on the determined target pipe loss, actual steam consumption, and steam production; wherein, the target pipe loss is the difference between the actual steam consumption and steam production of the steam-consuming equipment in the multi-impulse control system. The equipment adjustment unit is used to determine whether the damper opening needs to be adjusted based on the current steam pressure, the vacuum rehumidification start / stop signal in the equipment signals, and the steam flow signal in the equipment signals. The multi-impulse control system further includes: The damper parameter determination unit is used to determine the target damper opening based on the gas flow signal in the equipment signal; The status determination module includes: The first damper adjustment unit is used to increase the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is an open signal. The second damper adjustment unit is used to reduce the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is a stop signal. The instruction execution module includes: The first instruction execution unit is used to forcibly increase the water supply when the signal type of the vacuum rehumidification start / stop signal is an open signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction. The second instruction execution unit is used to forcibly reduce the water supply when the signal type of the vacuum rehumidification start / stop signal is a stop signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

2. The multi-impulse control system according to claim 1, characterized in that, Also includes: The system switching module is used to determine whether normal equipment signals can be collected. If the equipment signals cannot be collected or the collected equipment signals are abnormal, the system will automatically switch the multi-impulse control system to the single-impulse control system or switch the multi-impulse control system to the single-impulse control system after receiving a system switching command.

3. The multi-impulse control system according to claim 1 or 2, characterized in that, The signal determination module includes: The steam quantity information determination unit is used to collect the equipment signal of the equipment to be controlled, collect the actual steam consumption and steam production of the steam-using equipment in the multi-impulse control system, and determine the target pipe loss based on the difference between the actual steam consumption and the steam production.

4. A multi-impulse control method, characterized in that, include: Collect equipment signals from the equipment to be controlled and determine the steam quantity information; The current steam pressure is determined based on the steam volume information, and the damper opening is determined based on the current steam pressure and the equipment signal. When it is necessary to adjust the damper opening, the damper is adjusted to the corresponding opening based on the preset damper adjustment rules, and it is determined whether the vacuum rehumidification is stable. Adjust the water supply, and after the vacuum rehumidification stabilizes, execute the steam pressure PID automatic operation command and the boiler liquid level three-impulse PID automatic operation command to ensure that the steam pressure and boiler liquid level remain stable. The step of determining the current steam pressure based on the steam quantity information, and determining whether the damper opening needs to be adjusted based on the current steam pressure and the equipment signal, includes: A steam pressure determination unit is used to determine the current steam pressure based on the determined target pipe loss, actual steam consumption, and steam production; wherein, the target pipe loss is the difference between the actual steam consumption and steam production of the steam-consuming equipment in the multi-impulse control system. The equipment adjustment unit is used to determine whether the damper opening needs to be adjusted based on the current steam pressure, the vacuum rehumidification start / stop signal in the equipment signals, and the steam flow signal in the equipment signals. The multi-impulse control method further includes: The damper parameter determination unit is used to determine the target damper opening based on the gas flow signal in the equipment signal; The step of adjusting the damper opening when adjustment is required, adjusting the damper to the corresponding opening based on a preset damper adjustment rule, and determining whether vacuum rehumidification is stable includes: The first damper adjustment unit is used to increase the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is an open signal. The second damper adjustment unit is used to reduce the damper opening to the target damper opening when the signal type of the vacuum rehumidification start / stop signal is a stop signal. The adjustment of the water supply, and the execution of steam pressure PID automatic operation commands and boiler liquid level three-impulse PID automatic operation commands after the vacuum rehumidification has stabilized, to ensure that the steam pressure and boiler liquid level remain stable, includes: The first instruction execution unit is used to forcibly increase the water supply when the signal type of the vacuum rehumidification start / stop signal is an open signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction. The second instruction execution unit is used to forcibly reduce the water supply when the signal type of the vacuum rehumidification start / stop signal is a stop signal, until the vacuum rehumidification enters a stable state, and then execute the steam pressure PID automatic operation instruction and the boiler liquid level three-impulse PID automatic operation instruction.

5. An electronic device, characterized in that, include: Memory, used to store computer programs; A processor for executing the computer program to implement the multi-impulse control method as described in claim 4.

6. A computer-readable storage medium, characterized in that, Used to store a computer program, which, when executed by a processor, implements the multi-impulse control method as described in claim 4.

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