Steam supply control method and device

Abstract

The present disclosure relates to the field of waste heat recovery technology, and provides a steam supply control method and device. The method includes: obtaining the target steam pressure of the steam user end and the real-time steam pressure of the steam supply end, the target steam pressure at least including the lower pressure limit; judging whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure; if the real-time steam pressure is less than the lower pressure limit of the target steam pressure, judging whether its duration exceeds a preset time; if the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds a preset time, controlling the gas boiler to start, so as to adjust the steam supply. Based on the obtained real-time steam pressure, the steam supply status is judged, the equipment is intelligently controlled, and the steam supply is adjusted so that the steam in the pipeline network meets the diversified energy demand of the steam user end, which is conducive to ensuring the stability of the steam supply, further improving the utilization efficiency of the steam, and reducing the energy cost.

Description

Technical Field

[0001] The present disclosure relates to the field of waste heat recovery technology, and in particular to a steam supply control method and device. Background Art

[0002] Industrial steam is typically produced by burning fossil fuels, converting their internal energy into thermal energy to provide heat. Industrial steam is supplied through various methods, including cold resupply, hot resupply, and high- and low-pressure bypass steam supply. The continuous upgrading of industrial parks presents new challenges to the quality and supply of industrial steam.

[0003] Currently, peak-shaving boiler units used to generate industrial steam often experience frequent starts and stops. Some steam supply units require irregular inspections, impacting the supply of industrial steam and leading to unstable steam supply. Therefore, how to regulate steam supply to meet user demand is a technical challenge in this field. Summary of the Invention

[0004] In view of this, the embodiments of the present disclosure provide a steam supply control method and device to solve the problem of how to adjust the steam supply to meet the user's demand for steam.

[0005] According to a first aspect of the present disclosure, a steam supply control method is provided, comprising:

[0006] Obtaining the target steam pressure of the steam user end and the real-time steam pressure of the steam provider end, where the target steam pressure includes at least a lower pressure limit;

[0007] Determine whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure;

[0008] If the real-time steam pressure is less than the lower pressure limit of the target steam pressure, it is determined whether its duration exceeds the preset time;

[0009] If the duration of the real-time steam pressure being lower than the lower pressure limit of the target steam pressure exceeds a preset time, the gas boiler is controlled to start to adjust the steam supply.

[0010] A second aspect of the embodiments of the present disclosure provides a steam supply control device, comprising:

[0011] a data acquisition module configured to acquire a target steam pressure at a steam user end and a real-time steam pressure at a steam provider end, wherein the target steam pressure includes at least a lower pressure limit;

[0012] a steam pressure determination module configured to determine whether the real-time steam pressure is less than a lower pressure limit of a target steam pressure;

[0013] a duration determination module configured to determine whether the duration of the steam pressure exceeds a preset time if the real-time steam pressure is less than the lower pressure limit of the target steam pressure, and determine the equipment control strategy based on the determination result;

[0014] The control module is configured to control the gas boiler to start to adjust the steam supply if the real-time steam pressure is less than the lower limit of the target steam pressure for a period of time exceeding a preset time.

[0015] According to a third aspect of an embodiment of the present disclosure, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0016] According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed by a processor, the steps of the above method are implemented.

[0017] Compared with the prior art, the beneficial effects of the disclosed embodiment are as follows: by obtaining the target steam pressure of the steam user end and the real-time steam pressure of the steam supply end, the target steam pressure includes at least a lower pressure limit; judging whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure; if the real-time steam pressure is less than the lower pressure limit of the target steam pressure, judging whether its duration exceeds a preset time; if the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds a preset time, controlling the gas boiler to start to adjust the steam supply. Based on the obtained real-time steam pressure, the steam supply status is judged, the equipment is intelligently controlled, and the steam supply is adjusted so that the steam in the pipeline network meets the diversified energy demand of the energy user end, which is conducive to ensuring the stability of the steam supply, further improving the utilization efficiency of the steam, and reducing the energy cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present disclosure;

[0020] Figure 2 is a flow chart of a steam supply control method provided by an embodiment of the present disclosure;

[0021] Figure 3This is a schematic diagram of a specific process of a steam supply control method provided by an embodiment of the present disclosure;

[0022] Figure 4 Schematic diagram of the structure of a steam supply control device provided by an embodiment of the present disclosure;

[0023] Figure 5 It is a structural diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present disclosure with unnecessary detail.

[0025] A method and apparatus for controlling an energy device system according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0026] Figure 1 10 is a schematic diagram of an application scenario of an embodiment of the present disclosure. The application scenario may include a controlled terminal 101, an intelligent gateway 102, and an integrated control platform 103.

[0027] Controlled terminal 101 can be a gas boiler equipped with a PLC controller, or intelligent valves used to control steam in a pipe network, among other control devices. It also includes various sensors installed in the steam pipe network and steam equipment, such as flow meters, pressure gauges, and valve opening meters, to collect current steam flow, steam pressure, and valve opening. Controlled terminal 101 can establish a communication connection with integrated control platform 103 via intelligent gateway 102.

[0028] Intelligent gateway 102 connects controlled terminals 101 and integrated control platform 103. For example, the intelligent gateway can be a DTU. This network-based data transmission significantly reduces IoT costs and facilitates installation and modification. It exchanges data from IoT measurement points with the integrated control platform and transmits control commands issued by the integrated control platform to the controlled terminals.

[0029] The network can be a wired network connected by coaxial cable, twisted pair and optical fiber, or it can be a wireless network that can interconnect various communication devices without wiring, such as Bluetooth, Near Field Communication (NFC), infrared, local area network, etc. The embodiments of the present disclosure are not limited to this.

[0030] The integrated control platform 103 includes a data acquisition unit, a data processing unit, a data storage unit, a parameter control unit, an instruction output unit, and a data transmission unit. Specifically, the data acquisition unit is used to acquire IoT measurement point data collected by the controlled terminal 101, including at least the real-time steam pressure and valve opening values of the steam user terminal. The data processing unit is used to receive the IoT measurement point data transmitted by the data acquisition unit and aggregate and process the IoT measurement point data to obtain aggregated data. The data storage unit is used to store at least data and control instructions. Specifically, it can receive and store data transmitted by the data acquisition unit, as well as target steam pressure input by the steam user terminal and other device data, such as device attributes and device numbers. The parameter control unit processes the aggregated data using a preset algorithm, generates control instructions, and transmits them to the instruction output unit. The instruction output unit is used to transmit the received control instructions to the controlled terminal via the intelligent gateway for implementation. The data transmission unit is used to transmit data between various units within the integrated platform, including at least IoT measurement point data, aggregated data, and generated control instructions.

[0031] The integrated control platform also enables human-computer interaction. By incorporating a visualization unit into the integrated control platform, it provides users with diverse services such as real-time data access and command input. Users can adjust the target industrial steam level based on process requirements, such as adjusting the lower limit of the target steam pressure from 0.5 MPa to 0.7 MPa. Furthermore, the acquired IoT measurement point data and analysis results are visualized, including steam supply volume at the steam provider end, steam consumption at the user end, and forecasted industrial steam usage trends for the future.

[0032] It should be noted that the comprehensive control platform can be hardware or software. When the terminal device is hardware, it can be various electronic devices with a display screen and supporting communication with the controlled terminal, including at least smart phones, tablet computers, laptop portable computers and desktop computers, etc., as well as input / output controllers for receiving and processing inputs from many other devices, such as touch screens or other types of input devices. Similarly, the input / output controller can provide output to a display screen or other types of output devices; when the terminal device is software, it can be installed in the above electronic devices. The terminal device can be implemented as multiple software or software modules, or as a single software or software module, and the embodiments of the present disclosure are not limited to this. Furthermore, various applications can be installed on the terminal device, such as data processing applications, instant messaging tools, social platform software, search applications, shopping applications, etc.

[0033] The integrated control platform is equipped with one or more servers, which are connected to smart gateways, IoT devices, etc., so that it can obtain corresponding data (for example, real-time steam pressure, etc.), generate instructions based on the acquired data, and send the instructions to the controlled terminal to adjust the steam supply.

[0034] The specific types, quantities and combinations of the controlled terminals 101, the intelligent gateway 102 and the integrated control platform 103 can be adjusted according to the actual needs of the application scenario, and the embodiments of the present disclosure do not impose any restrictions on this.

[0035] Figure 2 It is a flow chart of a steam supply control method provided in an embodiment of the present disclosure. Figure 2 The steam control method can be Figure 1 The server execution of the comprehensive control platform, such as Figure 2 As shown, the steam supply control method includes:

[0036] S201, obtaining a target steam pressure at a steam user end and a real-time steam pressure at a steam provider end, wherein the target steam pressure includes at least a lower pressure limit.

[0037] S202, determining whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure.

[0038] S203: If the real-time steam pressure is less than the lower limit of the target steam pressure, determine whether the duration exceeds a preset time.

[0039] S204: If the duration of the real-time steam pressure being less than the lower limit of the target steam pressure exceeds a preset time, the gas boiler is controlled to start to adjust the steam pressure.

[0040] In the embodiment of the present invention, the target steam pressure is obtained by collecting the real-time steam pressure; the steam supply status is determined according to the target steam pressure; and the steam supply is adjusted based on the steam supply status.

[0041] Specifically, step S201 acquires the real-time steam pressure at the steam supply terminal. This real-time steam pressure is obtained using sensors in a pre-set steam supply network. The IoT device can be deployed in the steam supply network of an industrial park or installed in steam equipment. The number of sensors can be at least one or multiple. The sensors in the steam supply network are grouped and numbered to enable real-time steam pressure collection at multiple locations. The collected real-time steam pressure is processed by a server and stored on the server, allowing users to access the data as needed.

[0042] In this embodiment, based on the process production requirements, the upper and lower limits of the target steam pressure are input into the integrated control platform as a judgment basis to keep the real-time steam pressure within the upper and lower limits of the target steam pressure. Otherwise, the steam supply needs to be adjusted. Preferably, under normal conditions, the upper or lower limit of the target steam pressure required by the steam user end can be a fixed value or a small floating threshold range. In some feasible embodiments, the real-time steam pressure can also be understood as floating within a certain numerical range. For example, if the lower limit of the target steam pressure is set to 0.5 MPa, the lower limit of the target steam pressure can also be between 0.5 MPa and 0.55 MPa.

[0043] In step 202, based on the lower limit of the target steam pressure, it is determined whether the real-time steam pressure is less than the lower limit of the target steam pressure. For example, if the real-time steam pressure is 0.2 MPa and the lower limit of the target steam pressure is 0.5 MPa, the real-time steam pressure is determined to be less than the lower limit of the target steam pressure.

[0044] In step S203, if the real-time steam pressure is less than the lower limit of the target steam pressure, it is determined whether the duration exceeds a preset duration. The duration of the real-time steam pressure being less than the lower limit of the target steam pressure is obtained. The preset duration can be set in the range of 3 minutes to 30 minutes. The preset duration is set based on actual needs and is not specifically limited in this disclosure.

[0045] Properly setting the preset duration can timely adjust the real-time steam pressure in the pipeline network, ensuring that the output industrial steam meets the needs of steam users and ensuring the stability of steam supply. The duration is the time that the real-time steam pressure is continuously lower than the lower limit of the target steam pressure.

[0046] Specifically, when the real-time steam pressure is lower than the lower pressure limit of the target steam pressure, the integrated control platform outputs early warning information on the display screen through the visualization unit, such as pop-up reminders, status indicators flashing red, etc., to remind users that the real-time steam pressure supply status is abnormal and the steam supply needs to be adjusted.

[0047] If the duration during which the real-time steam pressure is less than the lower pressure limit of the target steam pressure does not exceed the preset time, the gas boiler is manually started, and the real-time load rate and / or real-time valve opening of the gas boiler are adjusted to adjust the steam supply.

[0048] In step S204, if the duration exceeds the preset time, the integrated control platform automatically generates a control instruction and sends it to the controlled terminal to control the start-up of the gas boiler to adjust the steam supply.

[0049] In this embodiment, the integrated control platform transmits control instructions to the controlled terminal via a transmission unit. The controlled terminal, such as a gas-fired boiler, contains a device controller PLC. Preferably, the device PLC controller can be connected to a local area network, utilizing the local area network to maintain a communication connection with the integrated control platform. Taking mobile phone software as an example, the user logs into the software interface and enters the target steam pressure. The integrated control platform generates a control instruction, which is then transmitted to the device controller PLC within the local area network where the gas-fired steam boiler is located. This controls the operating parameters of the gas-fired boiler, such as the boiler's fuel intake and air supply, and adjusts the boiler's load rate to ensure that the real-time steam pressure is within the target steam pressure range at the steam user end. The device controller PLC can also use control signals to implement program control at different times with the intelligent valves in the gas-fired boiler. In this embodiment, the valves in the gas-fired boiler are pressure-reducing valves. The number of pressure-reducing valves can be one or more, and there is no specific limitation here.

[0050] After the gas boiler is automatically started, the real-time load factor is obtained to determine whether it is less than the maximum boiler load factor, which is 100%. If the real-time load factor is less than the maximum boiler load factor, the boiler load factor is increased by a preset load factor increment. For example, the real-time load factor can be increased by a preset 10% increment. It should be noted that the boiler load factor is a key indicator for monitoring boiler combustion, and its level directly affects the steam supply and quality.

[0051] After increasing the real-time load rate of the boiler, the process returns to the step of obtaining the real-time steam pressure of the steam supply end, or enters the step of determining whether the real-time valve opening of the gas boiler is greater than the minimum opening value.

[0052] Specifically, in the step of returning to obtain the real-time steam pressure at the steam supply end, after increasing the real-time load factor of the boiler, the real-time steam pressure at the steam supply end is obtained, and a determination is made as to whether the adjusted real-time steam pressure is less than the lower pressure limit of the target steam pressure. If the above determination condition is met, the increase in the boiler load factor is stopped. If the adjusted real-time steam pressure is still less than the lower pressure limit of the target steam pressure, the boiler load factor is further adjusted.

[0053] When the boiler's real-time load rate is increased to equal the maximum boiler load rate, if the real-time steam pressure is still less than the lower pressure limit of the target steam pressure, the process can proceed to the step of determining whether the real-time valve opening of the gas boiler is greater than the minimum opening value. This step determines whether the real-time valve opening of the gas boiler is greater than the minimum opening value. If so, the valve opening of the gas boiler is reduced by a preset opening step size, and the process returns to the step of obtaining the real-time steam pressure of the steam supply end. The process then determines again whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure. If the real-time steam pressure is still less than the target steam pressure, the process continues until the real-time valve opening of the gas boiler reaches the minimum opening value, at which point the process returns to the step of obtaining the real-time steam pressure of the steam supply end.

[0054] Furthermore, if the real-time steam pressure is not less than the lower pressure limit of the target steam pressure, it is determined whether the real-time steam pressure is greater than the upper pressure limit of the target steam pressure. If the real-time steam pressure is greater than the upper pressure limit of the target steam pressure, the gas boiler is adjusted or the valve at the steam user end is adjusted to adjust the steam supply.

[0055] As an example, a gas boiler is regulated. Specifically, after determining that the real-time steam pressure is greater than the upper limit of the target steam pressure, the real-time load factor of the boiler is obtained. It is then determined whether the real-time load factor of the gas boiler is greater than a minimum load factor value, where the minimum load factor value is 0%. If the real-time load factor is greater than the minimum load factor value, the boiler load factor is reduced according to a preset load factor step size. For example, the real-time load factor of the boiler can be reduced in preset steps of 10%.

[0056] After reducing the real-time load rate of the boiler, if the real-time steam pressure is not greater than the upper limit of the target steam pressure, the process returns to the step of obtaining the real-time steam pressure of the steam supply end, or enters the step of determining whether the real-time valve opening of the gas boiler is greater than the maximum opening.

[0057] Specifically, in the step of returning to obtain the real-time steam pressure at the steam supply end, after reducing the real-time load factor of the boiler, the real-time steam pressure at the steam supply end is obtained, and a determination is made as to whether the adjusted real-time steam pressure is greater than the upper pressure limit of the target steam pressure. If the above determination condition is not met, the boiler load factor is stopped from being increased. If the adjusted real-time steam pressure is still greater than the upper pressure limit of the target steam pressure, the real-time steam pressure is further adjusted.

[0058] When the real-time load rate of the boiler is reduced to be equal to the minimum load rate of the boiler, if the real-time steam pressure is still greater than the upper pressure limit of the target steam pressure, it is possible to select a step of determining whether the real-time valve opening of the gas boiler is greater than the maximum opening.

[0059] Specifically, the process determines whether the gas boiler's real-time valve opening is less than the maximum opening. If so, the valve opening is increased according to a preset opening step size, and the process returns to the step of obtaining the real-time steam pressure at the steam supply end to again determine whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure. If the real-time steam pressure is still less than the target steam pressure, the process continues adjusting the pressure until the real-time valve opening of the gas boiler reaches the minimum opening, at which point the process returns to the step of obtaining the real-time steam pressure at the steam supply end.

[0060] Figure 3 This is a specific flow chart of a steam supply control method provided by an embodiment of the present disclosure. Figure 3 As shown, the specific method for regulating steam supply includes:

[0061] S301, obtaining the real-time steam pressure of the steam supply end.

[0062] S302: Determine whether the real-time steam pressure is less than the lower limit of the target steam pressure, 0.5 MPa.

[0063] If the real-time steam pressure is less than the lower pressure limit of the target steam pressure, then:

[0064] S303, obtaining the duration of the real-time steam pressure being less than the target steam pressure, and determining whether the duration exceeds a preset duration of 3 minutes.

[0065] If the duration does not exceed the preset time, then:

[0066] S304, manually start the equipment, give priority to custom adjustment of boiler load rate.

[0067] If the real-time steam pressure is still lower than the lower pressure limit of the target steam pressure, then:

[0068] S305: User-defined adjustment of the opening of the pressure reducing valve. After the adjustment is completed, return to step S301.

[0069] If the duration exceeds the preset time, then:

[0070] S306: Determine whether the real-time load rate of the gas boiler is less than 100%.

[0071] If the real-time load rate of the gas boiler is less than 100%, then:

[0072] S307, automatically increase the boiler load rate by 10%, and return to step S301.

[0073] If the real-time boiler load rate of the gas boiler is equal to 100%, then:

[0074] S308: Determine whether the real-time valve opening of the gas boiler is greater than 0%.

[0075] If the valve opening is greater than 0%, then:

[0076] S309, automatically reduce the opening of the pressure reducing valve by 5%, and return to step S301 to update the real-time steam pressure.

[0077] After adjusting the real-time valve opening of the gas boiler, when the real-time valve opening of the gas boiler is 0%, the process returns to step S301.

[0078] If the real-time steam pressure is not less than 0.5MPa, then:

[0079] S310, determining whether the real-time steam pressure is greater than the upper limit of the target steam pressure, 0.6 MPa.

[0080] If the real-time steam pressure is not greater than 0.6 MPa, return to step S301.

[0081] If the real-time steam pressure is greater than the upper limit of the target steam pressure, then:

[0082] S311, determining whether the real-time load rate of the boiler is greater than 0%.

[0083] If the load factor in the boiler is greater than 0%, then:

[0084] S312, automatically reduce the boiler load rate by 10%. After the adjustment is completed, return to step S301.

[0085] If the real-time load rate is equal to 0%, then:

[0086] S313, determining whether the real-time valve opening of the gas boiler is less than 100%.

[0087] If the valve opening is less than 100%, then:

[0088] S314, automatically increase the opening of the pressure reducing valve by 5%. After the adjustment is completed, return to the step of obtaining the real-time steam pressure of the steam supply end to update the real-time steam pressure.

[0089] After adjusting the real-time valve opening of the gas boiler, when the real-time valve opening of the gas boiler is equal to 100%, the process returns to step S301.

[0090] According to the technical solution provided by the embodiment of the present disclosure, by obtaining the target steam pressure of the steam user end and the real-time steam pressure of the steam supply end, the target steam pressure includes at least a lower pressure limit, and judging whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure. If the real-time steam pressure is less than the lower pressure limit of the target steam pressure, judging whether its duration exceeds a preset time. If the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds a preset time, controlling the gas boiler to start, so as to adjust the steam supply. Based on the obtained real-time steam pressure, the steam supply status is judged, and the equipment is intelligently controlled, thereby adjusting the steam supply so that the steam in the pipeline network meets the diversified energy demand of the energy user end, which is conducive to ensuring the stability of the steam supply, further improving the utilization efficiency of the steam, and greatly shortening the control time. The steam recovery system can quickly control the real-time steam parameters based on the needs of the steam users, promptly solve the problem of imbalance in the steam supply, and reduce energy costs.

[0091] All of the above optional technical solutions can be combined in any way to form optional embodiments of the present application, and will not be described in detail here.

[0092] The following are embodiments of the apparatus disclosed herein, which can be used to implement the method embodiments disclosed herein. For details not disclosed in the apparatus embodiments disclosed herein, please refer to the method embodiments disclosed herein.

[0093] Figure 4 Schematic diagram of a steam supply control device provided by an embodiment of the present disclosure. Figure 4 As shown, the steam supply control device includes: a data acquisition module 401, a steam pressure judgment module 402, a duration judgment module 403, and a control module 404. Among them, the data acquisition module 301 is configured to obtain the target steam pressure of the steam user end and the real-time steam pressure of the steam supply end, and the target steam pressure at least includes a lower pressure limit. The steam pressure judgment module 402 is configured to determine whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure. The duration judgment module 403 is configured to determine whether the duration of the real-time steam pressure is less than the lower pressure limit of the target steam pressure exceeds a preset time if the real-time steam pressure is less than the lower pressure limit of the target steam pressure. The control module 404 is configured to control the gas boiler to start to adjust the steam supply if the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds a preset time.

[0094] Control module 404 is specifically configured to start the gas boiler and determine whether the real-time load rate of the gas boiler is less than the maximum load rate; if the real-time load rate is less than the maximum load rate, increase the boiler load rate according to a preset load rate step size. If the real-time boiler load rate is equal to the maximum load rate, determine whether the real-time valve opening of the gas boiler is greater than the minimum opening value; if the real-time valve opening of the gas boiler is greater than the minimum opening value, decrease the valve opening of the gas boiler according to the preset opening step size, and return to the step of obtaining the real-time steam pressure of the steam supply end; if the real-time valve opening of the gas boiler is equal to the minimum opening value, return to the step of obtaining the real-time steam pressure of the steam supply end.

[0095] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

[0096] Figure 5 Schematic diagram of the electronic device 5 provided by the embodiment of the present disclosure. Figure 5 As shown, the electronic device 5 of this embodiment includes: a processor 501, a memory 502, and a computer program 503 stored in the memory 502 and executable by the processor 501. When the processor 501 executes the computer program 503, the steps of the above-mentioned method embodiments are implemented. Alternatively, when the processor 501 executes the computer program 503, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0097] The electronic device 5 may be a desktop computer, a notebook, a PDA, a cloud server, or other electronic device. The electronic device 5 may include but is not limited to a processor 501 and a memory 502. Those skilled in the art will appreciate that Figure 5 This is merely an example of the electronic device 5 and does not limit the electronic device 5 . The electronic device 5 may include more or fewer components than shown in the figure, or different components.

[0098] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0099] The memory 502 can be an internal storage unit of the electronic device 5, such as a hard disk or memory of the electronic device 5. The memory 502 can also be an external storage device of the electronic device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. The memory 502 can also include both an internal storage unit of the electronic device 5 and an external storage device. The memory 502 is used to store computer programs and other programs and data required by the electronic device.

[0100] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0101] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present disclosure implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor, it can implement the steps of the above-mentioned various method embodiments. The computer program may include computer program code, which may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0102] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure, and should all be included in the scope of protection of the present disclosure.

Claims

1. A steam supply control method, characterized in that: The method comprises: Obtaining a target steam pressure at a steam user end and a real-time steam pressure at a steam provider end, wherein the target steam pressure includes at least a lower pressure limit; Determining whether the real-time steam pressure is less than a lower pressure limit of the target steam pressure; If the real-time steam pressure is less than the lower pressure limit of the target steam pressure, determining whether the duration thereof exceeds a preset time; If the duration for which the real-time steam pressure is less than the lower pressure limit of the target steam pressure does not exceed the preset time period, manually starting the gas boiler and adjusting the real-time load rate and / or real-time valve opening of the gas boiler to adjust the steam supply; If the duration for which the real-time steam pressure is less than the lower pressure limit of the target steam pressure exceeds the preset time length, a control instruction is automatically generated and sent to the controlled terminal to control the start-up of the gas boiler and adjust the real-time load rate and / or real-time valve opening of the gas boiler to adjust the steam supply.

2. The method according to claim 1, characterized in that If the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds the preset time, the gas boiler is controlled to start to adjust the steam supply, including: Starting the gas boiler and determining whether the real-time load rate of the gas boiler is less than the maximum load rate; If the real-time load rate is less than the maximum load rate, the boiler load rate is increased according to a preset load rate step.

3. The method according to claim 2, characterized in that If the real-time boiler load rate is equal to the maximum load rate, then: Determining whether the real-time valve opening of the gas boiler is greater than a minimum opening value; If the real-time valve opening of the gas boiler is greater than the minimum opening value, the valve opening of the gas boiler is reduced according to a preset opening step, and the process returns to the step of obtaining the real-time steam pressure of the steam supply end; If the real-time valve opening of the gas boiler is equal to the minimum opening value, the process returns to the step of obtaining the real-time steam pressure of the steam supply end.

4. The method according to claim 3, characterized in that If the real-time load rate is less than the maximum load rate, the step of increasing the boiler load rate according to the preset load rate step size is followed by returning to the step of obtaining the real-time steam pressure of the steam supply end, or entering the step of determining whether the real-time valve opening of the gas boiler is greater than the minimum opening value.

5. The method according to claim 1, wherein After the step of determining whether the real-time steam pressure is less than the lower pressure limit of the target steam pressure, the method further includes: If the real-time steam pressure is not less than the lower pressure limit of the target steam pressure, determining whether the real-time steam pressure is greater than the upper pressure limit of the target steam pressure; If the real-time steam pressure is greater than the upper pressure limit of the target steam pressure, the gas boiler is regulated or the valve at the steam user end is regulated to adjust the steam supply.

6. The method according to claim 5, characterized in that If the real-time steam pressure is greater than the upper limit of the target steam pressure, regulating the gas boiler to adjust the steam supply includes: Determining whether the real-time load rate of the gas boiler is greater than a minimum load rate; If the real-time load rate is greater than the minimum load rate, the boiler load rate is reduced according to a preset load rate step.

7. The method according to claim 6, characterized in that If the real-time load rate is equal to the minimum load rate, then: Determining whether the real-time valve opening of the gas boiler is less than the maximum opening; If the real-time valve opening of the gas boiler is less than the maximum opening, the valve opening of the gas boiler is increased according to a preset opening step, and the process returns to the step of obtaining the real-time steam pressure of the steam supply end; If the real-time valve opening of the gas boiler is equal to the maximum opening, the process returns to the step of obtaining the real-time steam pressure of the steam supply end.

8. A steam supply control device, characterized in that: include: a data acquisition module configured to acquire a target steam pressure at a steam user end and a real-time steam pressure at a steam provider end, wherein the target steam pressure includes at least a lower pressure limit; a steam pressure determination module, configured to determine whether the real-time steam pressure is less than a lower pressure limit of the target steam pressure; a duration determination module configured to determine whether the duration of the target steam pressure exceeds a preset duration if the real-time steam pressure is less than the lower pressure limit of the target steam pressure; The control module is configured to manually start the gas boiler and adjust the real-time load rate and / or real-time valve opening of the gas boiler to regulate the steam supply if the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure does not exceed the preset time; if the duration of the real-time steam pressure being less than the lower pressure limit of the target steam pressure exceeds the preset time, automatically generate a control instruction and send it to the controlled terminal to adjust the real-time load rate and / or real-time valve opening of the gas boiler and control the start-up of the gas boiler to regulate the steam supply.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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