Steam supply system and steam supply system control method and device

Abstract

The embodiment of the invention discloses a steam supply system and a steam supply system control method and device.The steam supply system comprises a steam supply main pipe used for outputting steam to a heat using end; the first steam supply device is connected to the steam supply main pipe; the second steam supply device comprises a steam supply pipeline, a first pressure reduction part and a generator set, the steam inlet end of the steam supply pipeline is used for being communicated with a reheating cold section steam pipeline of the generator set when the first steam supply device is in a target state, the target state is that the first steam supply device is in a deep peak regulation working condition, and the first pressure reduction part is arranged on the steam supply pipeline; the steam inlet end of the pressure reduction branch is connected to the steam outlet end of a steam supply pipeline of at least one second steam supply device, the steam outlet end of the pressure reduction branch is connected to the steam supply pipeline, and a second pressure reduction part is arranged on the pressure reduction branch; wherein under the condition that the steam supply parameters of the first steam supply device are insufficient, at least one second steam supply device is started to supply steam to the steam supply main pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal power generation, and in particular to a steam supply system and a steam supply system control method and device. BACKGROUND

[0002] With the development of economy and society, the demand for heat energy in various industries is also increasing. A large amount of steam can be generated in the process of thermal power generation, and these steam can be recycled through the reheating cold section in the steam pipeline. However, the energy contained in the steam has not been fully utilized.

[0003] In the related art, the steam generated by the thermal power generating unit is directed to the heat network, which can reduce the burden of heating and heat supply. However, with the increasing number of current new energy power generation equipment, in order to accommodate more new energy power generation capacity, the thermal power generating unit needs to be deeply peaking according to the actual situation. Since the load of the thermal power generating unit is not stable, the steam pressure generated is also unstable, thereby causing the heating capacity of the heat supply using steam waste heat to be unstable. SUMMARY

[0004] Embodiments of the present application disclose a steam supply system and a steam supply system control method and device, which can improve the stability of heat supply using steam waste heat generated by thermal power generation by connecting a second steam supply device with a steam supply main pipe.

[0005] To achieve the above-mentioned purpose, in a first aspect, embodiments of the present application disclose a steam supply system, comprising: a steam supply main pipe, configured to output steam to a heat using end; a first steam supply device connected to the steam supply main pipe; at least one second steam supply device, comprising a steam supply pipeline, a first pressure reducing component and a power generating unit, a steam inlet end of the steam supply pipeline being configured to communicate with a reheating cold section steam pipeline of the power generating unit when the first steam supply device is in a target state, the target state being that the first steam supply device is in a deep peaking working condition, the first pressure reducing component being arranged in the steam supply pipeline; a pressure reducing branch, a steam outlet end of the pressure reducing branch being connected to a steam outlet end of the steam supply pipeline of the at least one second steam supply device, and a steam inlet end of the pressure reducing branch being connected to the steam supply pipeline, a second pressure reducing component being arranged on the pressure reducing branch; wherein, in the case that the steam supply parameter of the first steam supply device is insufficient, the at least one second steam supply device is enabled to supply steam to the steam supply main pipe.

[0006] In a possible implementation manner, the steam supply pipeline comprises: a manual valve arranged in the steam supply pipeline, the manual valve being closer to the power generating unit than the first pressure reducing component; and / or A first electric valve is arranged in the steam supply pipeline, and the first electric valve is closer to the generator set than the first pressure reducing component.

[0007] In a possible implementation, the pressure reducing branch includes: A second electric valve is arranged in the pressure reducing branch, and the second electric valve is closer to a steam inlet end of the pressure reducing branch than the second pressure reducing component. A first flow meter is arranged in the pressure reducing branch, and the first flow meter is arranged between the second electric valve and the second pressure reducing component.

[0008] In a possible implementation, the steam supply main pipe includes at least one steam supply branch, and the steam supply branch is capable of supplying steam from the steam supply main pipe to the heat utilization end.

[0009] In a possible implementation, the steam supply branch includes a flow meter valve group, and the flow meter valve group is arranged in the steam supply branch, and the flow meter valve group includes a plurality of sub valve groups arranged in parallel.

[0010] In a possible implementation, any one of the sub valve groups includes: A plurality of isolation valves are arranged in the steam supply branch. A second flow meter is arranged between any two of the isolation valves.

[0011] In a possible implementation, the steam supply main pipe has a first diameter, and the first diameter is greater than diameters of the pressure reducing branch and the steam supply pipeline.

[0012] In a possible implementation, a ratio K of an amount of steam supplied by the second steam supply device to the steam supply main pipe to a total amount of steam flowing into the reheated cold section steam pipeline satisfies: 0 < K ≤ 0.1.

[0013] In a second aspect, an embodiment of the present application discloses a steam supply system control method, which is used for controlling the steam supply system in the first aspect, and the steam supply system control method includes: Obtaining operation load data of a first steam supply device of the steam supply system, when the operation load data is not less than first preset load data, controlling the first steam supply device of the steam supply system to supply steam to the steam supply main pipe, and when the operation load data is less than the first preset load data, controlling a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system.

[0014] In a third aspect, the embodiments of the present application disclose a steam supply system control device. The steam supply system control device is used to acquire operation load data of a first steam supply device of the steam supply system, and control the first steam supply device of the steam supply system to supply steam to a steam supply main pipe when the operation load data is less than first preset load data. The steam supply system control device controls a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system when the operation load data is less than the first preset load data.

[0015] The steam supply system provided by the embodiments of the present application can integrate the first steam supply device of the first-stage plant and the second steam supply device of the second-stage plant, and connect the pressure reduction branch with the steam supply main pipe, so that the second steam supply device is enabled to divert steam from the reheated cold-steam pipe when the steam supply parameters of the first steam supply device are insufficient due to deep peak regulation of the thermal power plant, and the steam is supplied to the heat-using end after pressure reduction, thereby enhancing the reliability of the steam supply system, ensuring continuous and stable steam demand of the heat-using end, and realizing step-by-step utilization of the steam energy generated in the thermal power plant, and improving the energy utilization efficiency, economy and flexibility.

[0016] Additional aspects and advantages of the present application will be made apparent by the following description and the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a steam supply system according to an embodiment of the present application; Figure 2 FIG. 2 is another structural schematic diagram of a steam supply system according to an embodiment of the present application; Figure 3 FIG. 3 is a structural block diagram of an electronic device for a steam supply system control method according to an embodiment of the present application.

[0019] EXPLANATION OF REFERENCE NUMERALS 10 - steam supply system, 101 - steam supply main, 1011 - steam supply branch, 1012 - flow meter valve group, 1013 - sub valve group, 1014 - isolation valve, 1015 - second flow meter, 102 - first steam supply device, 103 - second steam supply device, 1031 - steam supply pipeline, 1032 - first pressure reducing element, 1033 - generator set, 1034 - manual valve, 1035 - first electric valve, 1036 - reheat cold section steam pipeline, 104 - pressure reducing branch, 1041 - second pressure reducing element, 1042 - second electric valve, 1043 - first flow meter, 105 - heat utilization end. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0023] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] This application provides a steam supply system 10, which can be used between equipment and heat-consuming end 105 in a thermal power plant. The thermal power plant has equipment such as a boiler, a high-pressure cylinder, and an intermediate-pressure cylinder. The steam generated by the boiler can perform work in the high-pressure cylinder, intermediate-pressure cylinder, etc., and then release the energy contained in the steam and recover it in the form of condensate into the water storage equipment in the thermal power plant.

[0026] like Figure 1 As shown, the steam supply system 10 provided in this application embodiment includes a steam supply header 101, which is used to output steam to the heat-consuming end 105.

[0027] The steam supply system 10 includes a first steam supply device 102. The first steam supply device 102 is connected to the steam supply header 101.

[0028] Specifically, the thermal power plant includes a first-phase plant building, which includes a first steam supply unit 102. The equipment connected to the steam supply header 101 in the first steam supply unit 102 can be a boiler or a high-pressure cylinder. The steam supply system 10 can guide the steam in the first steam supply unit 102 to the heat-consuming end 105 through the steam supply header 101.

[0029] The steam supply system 10 includes at least one second steam supply device 103. Each second steam supply device 103 includes a steam supply pipeline 1031, a first pressure reducing element 1032, and a generator set 1033. The steam inlet end of the steam supply pipeline 1031 is used to connect with the reheat cold section steam pipeline 1036 of the generator set 1033 when the first steam supply device 102 is in a target state, which is when the first steam supply device 102 is in a deep peak shaving condition. The first pressure reducing element 1032 is disposed in the steam supply pipeline 1031.

[0030] The thermal power plant also includes a second-phase plant, which includes at least one second steam supply unit 103. The second steam supply unit 103, which is connected to the reheat cold section steam pipeline 1036, may be the boiler or high-pressure cylinder of the generator set 1033. The steam supply pipeline 1031 can introduce a portion of the steam into the steam supply pipeline 1031 to supply the steam supply header 101 when the first steam supply unit 102 is in deep peak shaving operation and before the steam in the reheat cold section steam pipeline 1036 flows to the intermediate-pressure cylinder in the second steam supply unit 103.

[0031] The steam supply system 10 includes a pressure-reducing branch 104. The steam inlet of the pressure-reducing branch 104 is connected to the steam outlet of the steam supply pipeline 1031 of at least one second steam supply device 103, and the steam outlet of the pressure-reducing branch 104 is connected to the steam supply pipeline. A second pressure-reducing component 1041 is provided on the pressure-reducing branch 104.

[0032] The pressure reducing branch 104 can receive steam from the steam supply line 1031 and depressurize the steam from the steam supply line 1031, and then merge the depressurized steam into the steam supply main line 101.

[0033] In cases where the steam supply parameters of the first steam supply device 102 are insufficient, at least one second steam supply device 103 is activated to supply steam to the steam supply header 101.

[0034] The steam supply parameters can be steam pressure data. Since thermal power plants need to perform peak shaving according to the local clean energy power generation situation, when the power generation equipment in the first phase plant is in deep peak shaving operation, the steam pressure drawn from the first steam supply equipment is also low, and it is impossible to supply steam to the heat-consuming end 105. At this time, at least one second steam supply device 103 in the second phase plant can be activated to supply steam to the heat-consuming end 105.

[0035] Thus, the steam supply system 10 provided in this application integrates the first steam supply device 102 of the first-phase plant and the second steam supply device 103 of the second-phase plant, and designs a pressure-reducing branch 104 connected to the steam supply main pipe 101. When the steam supply parameters of the first steam supply device 102 are insufficient due to the deep peak shaving of the thermal power plant, the second steam supply device 103 can be activated to divert steam from the reheat cold section steam pipeline 1036, and supply steam to the heat-consuming end 105 after pressure reduction. This enhances the reliability of the steam supply system 10, ensures the continuous and stable steam demand of the heat-consuming end 105, and realizes the tiered utilization of steam energy generated in the thermal power plant, improving the energy utilization efficiency, economy and flexibility.

[0036] In some embodiments, the steam supply line 1031 includes a manual valve 1034 and / or a first electric valve 1035. The manual valve 1034 is disposed in the steam supply line 1031 and is closer to the generator set 1033 than the first pressure reducing member 1032. The first electric valve 1035 is disposed in the steam supply line 1031 and is closer to the generator set 1033 than the first pressure reducing member 1032.

[0037] Preferably, a manual valve 1034 and a first electric valve 1035 can be installed simultaneously on the steam supply pipeline 1031. Under normal circumstances, the first electric valve 1035 can be controlled by a controller configured in the thermal power plant, thereby adjusting the connection between the second steam supply device 103 and the steam supply header 101. The manual valve 1034 can be used by personnel to manually adjust the connection between the second steam supply device 103 and the steam supply header 101 according to the actual situation when the controller or the first electric valve 1035 malfunctions.

[0038] In the above embodiment, the simultaneous provision of a manual valve 1034 and a first electric valve 1035 provides a dual control mode. The first electric valve 1035, controlled by the controller, enables automated adjustment, improving the operating efficiency and response speed of the steam supply system 10. The manual valve 1034 serves as a backup component, allowing for manual intervention in case of malfunction. This enhances the redundancy and fault tolerance of the steam supply system 10, ensuring the continuity and stability of steam supply. It also improves the flexibility of the steam supply system 10 in emergency situations while maintaining automation.

[0039] In some embodiments, the pressure reducing branch 104 includes a second electric valve 1042. The second electric valve 1042 is disposed in the pressure reducing branch 104, and the second electric valve 1042 is closer to the steam inlet end of the pressure reducing branch 104 than the second pressure reducing member 1041.

[0040] When multiple second steam supply devices are connected to the pressure reducing branch 104, the connection between the pressure reducing branch 104 and the steam supply main pipe 101 can be controlled by the second electric valve 1042. That is, when the steam provided by the first steam supply device 102 can meet the needs of the heat-consuming end 105, the controller controls the second electric valve 1042 to be closed. However, when the power generation equipment in the first phase plant is in a deep peak-shaving condition, the steam pressure drawn from the first steam supply device 102 is too low. At this time, the controller can control the second electric valve 1042 to open, so that the second steam supply devices in the second phase plant can provide steam to the steam supply main pipe 101.

[0041] The pressure reducing branch 104 includes a first flow meter 1043. The first flow meter 1043 is disposed in the pressure reducing branch 104 and is located between the second electric valve 1042 and the second pressure reducing element 1041.

[0042] The first flow meter 1043 can collect steam flow data through the pressure reducing branch 104 and send it to the controller. The controller can control the number of the second steam supply device 103 connected to the pressure reducing branch 104 in the second phase plant according to the steam flow data collected by the first flow meter 1043, so that the steam supply header 101 can obtain enough steam to supply the heat-using end 105 side.

[0043] In summary, the second electric valve 1042 installed at the steam inlet of the pressure-reducing branch 104 enables rapid and precise control of the connection between the steam supply header 101 and at least one second steam supply device 103. The addition of a first flow meter 1043 between the second electric valve 1042 and the second pressure-reducing component 1041 allows for targeted collection of steam flow data supplied to the steam supply header 101 by at least one second steam supply device 103, improving the accuracy of the measured steam flow data. This enables the controller to dynamically adjust the number of second steam supply devices 103 in operation based on actual needs. This design not only maintains a stable steam supply to the heat-consuming end 105 in the steam supply header 101 but also achieves refined matching and optimized scheduling of the steam supply, thereby effectively improving the economy and response efficiency of the steam supply system 10 while meeting heat demand.

[0044] In some embodiments, the steam supply header 101 includes at least one steam supply branch 1011, which is capable of supplying steam from the steam supply header 101 to the heat-consuming end 105.

[0045] Specifically, the heat-using end 105 may include a heat exchange primary station and a heat user. The steam supply header 101 may be connected to multiple heat exchange primary stations, thereby directing steam to multiple heat exchange primary stations, and then from the heat exchange primary stations to specific heat users.

[0046] The above embodiment connects multiple steam supply branches 1011 through the steam supply main pipe 101, and introduces the heat exchange first station as an intermediate distribution node to construct a clearly hierarchical steam distribution network. This enables the steam supply system 10 to efficiently and flexibly deliver steam to multiple different heat exchange first stations at the same time, thereby serving many dispersed heat users and enhancing the coverage and supply flexibility of the steam supply system 10.

[0047] In some embodiments, such as Figure 2 As shown, the steam supply branch 1011 includes a flow meter valve assembly 1012. The flow meter valve assembly 1012 is located in the steam supply branch 1011 and includes multiple sub-valve assemblies 1013 connected in parallel.

[0048] Preferably, there are two sub-valve groups 1013 in the flow meter valve group 1012. One sub-valve group 1013 is located on the steam supply branch 1011, and the other sub-valve group 1013 is located on the pipeline leading out from the steam supply branch 1011. The two sub-valve groups 1013 can monitor the steam flow in the steam supply branch 1011 under different conditions. For example, under normal conditions, the sub-valve group 1013 located on the steam supply branch 1011 is used, while when the steam flowing through the steam supply branch 1011 is less, the sub-valve group 1013 located on the pipeline leading out from the steam supply branch 1011 can be used for flow monitoring, thereby improving the accuracy of the acquired steam flow data.

[0049] In some embodiments, any sub-valve group 1013 includes a plurality of isolation valves 1014 and a second flow meter 1015. The plurality of isolation valves 1014 are disposed in the steam supply branch 1011, and the second flow meter 1015 is disposed between any two isolation valves 1014.

[0050] The arrangement of isolation valve 1014-second flow meter 1015-isolation valve 1014 can control the working state of the second flow meter 1015 through the isolation valve 1014 at both ends of the second flow meter 1015, so as to play a certain protection role for the second flow meter 1015. The isolation valve 1014 can also prevent the steam in the steam supply branch 1011 from being diverted, thereby affecting the accuracy of the steam flow data detected by the second flow meter 1015.

[0051] In some embodiments, the steam supply header 101 has a first diameter that is larger than the diameters of the pressure reducing branch 104 and the steam supply line 1031.

[0052] For example, the first diameter can be 710 mm, that is, the steam supply main pipe 101 can be a pipe with a diameter of 710 mm, the pipe between the steam inlet end of the steam supply pipe 1031 and the first pressure reducing element 1032 can be a pipe with a diameter of 273 mm, the pipe between the first pressure reducing element 1032 and the steam outlet end of the steam supply pipe 1031, and the pipe between the steam inlet end of the pressure reducing branch 104 and the second pressure reducing element 1041 can be a pipe with a diameter of 426 mm, and the pipe between the second pressure reducing element 1041 and the steam outlet end of the pressure reducing branch 104 can be a pipe with a diameter of 630 mm. In short, after each pressure reduction in the steam supply system 10, the steam needs to be piped with a diameter larger than the original diameter. The steam supply header 101 is the pipe that is finally connected to the heat-using end 105. The steam entering the steam supply header 101 has a lower pressure than other pipes and a larger steam flow rate. Therefore, it is necessary to ensure that the diameter of the steam supply header 101 remains at its maximum in the entire steam supply system 10.

[0053] In summary, selecting pipes of appropriate diameter for different parts of the steam supply system 10 can reduce the vibration and noise of the steam supply system 10, prevent the erosion and damage of high-speed airflow to the pipe wall and downstream equipment, reduce unnecessary throttling pressure loss and thus achieve energy saving, and also promote the restoration of a stable and uniform flow state of the airflow after pressure reduction, thereby ensuring the safe, stable and efficient long-term operation of the entire steam supply system 10.

[0054] In some embodiments, the ratio K of the amount of steam supplied by the second steam supply device 103 to the steam supply header 101 to the total amount of steam flowing into the reheat cold section steam pipeline 1036 satisfies: 0 < K ≤ 0.1.

[0055] Preferably, one-tenth of the total steam volume in the reheat cold section steam pipeline 1036 of the second steam supply device 103 can be supplied to the steam supply header 101 to ensure the normal operation of each piece of equipment in the thermal power plant. This avoids a situation where the condensate volume in the thermal power plant drops significantly due to a large amount of steam supplied to the steam supply header 101, thus requiring frequent replenishment of condensate. In this way, the energy contained in the steam can be utilized while minimizing the impact on the normal operation of the thermal power plant, thereby improving energy utilization efficiency and achieving the goal of energy conservation and emission reduction.

[0056] This application also provides a steam supply system control method, which is used to control the steam supply system as provided in any of the above embodiments. The executing entity of this steam supply system control method can be a controller installed in a thermal power plant, and the steam supply system control method includes: The controller acquires the operating load data of the first steam supply device of the steam supply system. When the operating load data is not less than the first preset load data, it controls the first steam supply device of the steam supply system to supply steam to the steam supply main pipe. When the operating load data is less than the first preset load data, it controls a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system.

[0057] For example, when the load of the first steam supply device is not less than 130MW, the steam demand of the heat-consuming end can be met by relying solely on the first steam supply device, so the second steam supply device is not connected to the steam supply main pipe at this time; however, when the load of the first steam supply device is less than 130MW, the controller can cut off the connection between the first steam supply device and the steam supply main pipe through an electric valve, and control the electric valve set on the pressure reducing branch to open, thereby connecting at least one second steam supply device to the steam supply main pipe.

[0058] Based on the real-time load data of the first steam supply unit, the controller automatically controls the connection between the first and second steam supply units and the steam supply main pipe, which improves the response speed and reliability of the steam supply system to load fluctuations on the power generation side. It fundamentally avoids the risk of steam supply interruption caused by insufficient output of the main steam source, while optimizing the coordinated allocation of steam resources throughout the plant and ensuring the continuity and stability of steam supply to the heat-consuming end.

[0059] This application embodiment also provides a steam supply system control device, which is used to acquire the operating load data of a first steam supply device of the steam supply system. When the operating load data is less than a first preset load data, the steam supply system control device controls the first steam supply device of the steam supply system to supply steam to the steam supply main pipe; when the operating load data is less than the first preset load data, the steam supply system control device controls a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system.

[0060] The steam supply system control device in this application embodiment can be an electronic device or a component of an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the specific devices.

[0061] The steam supply system control device provided in this application embodiment can realize all the processes implemented in the steam supply system control method embodiment, and will not be described again here to avoid repetition.

[0062] This application also provides an electronic device, such as... Figure 3As shown, the electronic device 300 includes a processor 301 and a memory 302. The memory 302 stores a program or instruction that can run on the processor 301. When the program or instruction is executed by the processor 301, it implements the various steps of the above-described steam supply system control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0063] The memory 302 can be used to store software programs and various data. The memory 302 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 302 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 302 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0064] Processor 301 may include one or more processing units; optionally, processor 301 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 301.

[0065] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described steam supply system control method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0066] This application also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described steam supply system control method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0067] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0068] This application also provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described steam supply system control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0069] It should be noted that, in this document, 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 that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0070] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A steam supply system, characterized in that, include: Steam supply header, used to supply steam to the heat-consuming end; The first steam supply device is connected to the steam supply header; At least one second steam supply device includes a steam supply pipeline, a first pressure reducing component, and a generator set. The steam inlet end of the steam supply pipeline is used to connect with the reheat cold section steam pipeline of the generator set when the first steam supply device is in a target state. The target state is when the first steam supply device is in a deep peak shaving condition. The first pressure reducing component is installed in the steam supply pipeline. A pressure-reducing branch, wherein the steam inlet of the pressure-reducing branch is connected to the steam outlet of the steam supply pipeline of the at least one second steam supply device, the steam outlet of the pressure-reducing branch is connected to the steam supply pipeline, and a second pressure-reducing component is provided on the pressure-reducing branch; In cases where the steam supply parameters of the first steam supply device are insufficient, at least one second steam supply device is activated to supply steam to the steam supply header.

2. The steam supply system according to claim 1, characterized in that, The steam supply pipeline includes: A manual valve is installed on the steam supply line, the manual valve being closer to the generator set than the first pressure reducing element; and / or A first electric valve is installed in the steam supply pipeline, and the first electric valve is closer to the generator set than the first pressure reducing element.

3. The steam supply system according to claim 1, characterized in that, The pressure-reducing branch includes: A second electric valve is disposed in the pressure reducing branch, and the second electric valve is closer to the steam inlet end of the pressure reducing branch than the second pressure reducing element; A first flow meter is disposed in the pressure reducing branch, and the first flow meter is disposed between the second electric valve and the second pressure reducing element.

4. The steam supply system according to claim 1, characterized in that, The steam supply header includes at least one steam supply branch, which is capable of supplying steam from the steam supply header to the heat-consuming end.

5. The steam supply system according to claim 4, characterized in that, The steam supply branch includes a flow meter valve assembly, which is located in the steam supply branch and includes multiple sub-valve assemblies connected in parallel.

6. The steam supply system according to claim 5, characterized in that, Each of the said sub-valve groups includes: Multiple isolation valves are installed in the steam supply branch; A second flow meter is installed between any two of the isolation valves.

7. The steam supply system according to any one of claims 1 to 6, characterized in that, The steam supply main pipe has a first diameter, which is larger than the diameter of the pressure reducing branch and the steam supply pipeline.

8. The steam supply system according to claim 7, characterized in that, The ratio K of the steam quantity supplied by the second steam supply device to the steam supply header to the total steam quantity flowing into the reheat cold section steam pipeline satisfies: 0 < K ≤ 0.

1.

9. A steam supply system control method, characterized in that, A method for controlling a steam supply system as described in any one of claims 1 to 8, the steam supply system control method comprising: The system acquires the operating load data of the first steam supply device of the steam supply system. When the operating load data is not less than the first preset load data, the system controls the first steam supply device of the steam supply system to supply steam to the steam supply main pipe. When the operating load data is less than the first preset load data, the system controls a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system.

10. A steam supply system control device, characterized in that, The control device is used to acquire the operating load data of the first steam supply device of the steam supply system. When the operating load data is less than the first preset load data, the steam supply system control device controls the first steam supply device of the steam supply system to supply steam to the steam supply header. When the operating load data is less than the first preset load data, the steam supply system control device controls a second steam supply device of the steam supply system to supply steam to the steam supply main pipe of the steam supply system.

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