Main steam temperature adjusting system, method, storage medium, electronic device, and program

Abstract

The invention relates to a main steam temperature adjusting system and method, a storage medium, electronic equipment and a program. The system comprises a data acquisition module, a data processing module and a control module. The data acquisition module is used for acquiring the temperature of a main steam shutoff valve of a steam turbine and the temperature of an upper cylinder outside a high-pressure cylinder and sending the temperature of the main steam shutoff valve and the temperature of the upper cylinder outside the high-pressure cylinder to the data processing module. The data processing module is used for determining a valve opening main steam temperature threshold interval of the steam turbine on the basis of the temperature of the main steam intercepting valve and the temperature of an upper cylinder outside the high-pressure cylinder, and sending the valve opening main steam temperature threshold interval of the steam turbine to the control module; and the control module is used for controlling the steam turbine to start running when the main steam temperature of the steam turbine is within the main steam temperature threshold interval. The starting main steam temperature of the steam turbine can be selected within the main steam temperature threshold interval under different external upper cylinder temperatures of the high-pressure cylinder, and the controllability of operation parameters of the steam turbine is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of steam turbine control in thermal power units, and in particular to a main steam temperature regulation system, method, storage medium, electronic equipment and program. Background Art

[0002] The steam turbine startup process in a thermal power plant is an unstable heat transfer process. Existing steam turbines use a joint startup method of high and medium pressure cylinders, so it is difficult to control the expansion difference of the steam turbine. The appropriate start-up steam temperature is an important guarantee to ensure that the steam turbine startup process can be fully warmed up, and the temperature difference of each cylinder and the expansion difference between the high, medium and low pressure cylinders and the rotor of the steam turbine are within the allowable range of the turbine manufacturer's design. At present, thermal power generating units are in a long-term low load, deep peak regulation and start-stop peak regulation process during operation. However, the upper and lower limits of the main steam temperature cannot be calculated through the existing main steam shut-off valve and the main steam regulating valve allowed before opening the main steam temperature range curve at different cylinder temperatures, which leads to uncontrollable turbine operating parameters. This is a technical problem that urgently needs to be solved. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a main steam temperature adjustment system, method, storage medium, electronic device and program.

[0004] According to a first aspect of an embodiment of the present disclosure, a main steam temperature adjustment system is provided, the system comprising: a data acquisition module, a data processing module and a control module; The data acquisition module is used to acquire the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine, and send the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature to the data processing module; The data processing module is used to determine the valve opening main steam temperature threshold interval of the steam turbine based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, and send the valve opening main steam temperature threshold interval of the steam turbine to the control module; The control module is used for controlling the steam turbine to start running when the main steam temperature of the steam turbine is within the main steam temperature threshold range.

[0005] Optionally, the data processing module includes: a first threshold determination unit and a second threshold determination unit; The first threshold value determination unit is used to determine a first valve opening temperature threshold value of the steam turbine based on the main steam shutoff valve temperature and a first preset function; The second threshold determination unit is used to determine a second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and a second preset function.

[0006] Optionally, The data processing module is also used to compare the first valve opening temperature threshold and the second valve opening temperature threshold, and use the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold as the lower limit value of the valve opening main steam temperature of the steam turbine, and use the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold as the upper limit value of the valve opening main steam temperature of the steam turbine, so as to determine the valve opening main steam temperature threshold range of the steam turbine.

[0007] Optionally, The data processing module is also used to compare the lower limit value of the valve opening main steam temperature with a first preset temperature threshold. When the lower limit value of the valve opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve opening main steam temperature. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder.

[0008] According to a second aspect of an embodiment of the present disclosure, a main steam temperature adjustment method is provided, which is applied to a main steam temperature adjustment system, comprising: Obtain the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine; Determining a valve opening main steam temperature threshold interval of the steam turbine based on the main steam shutoff valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold; Based on the valve opening main steam temperature threshold range of the steam turbine, the operation of the steam turbine is controlled.

[0009] Optionally, determining the valve opening main steam temperature threshold interval of the steam turbine based on the main steam shut-off valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold includes: Determining a first valve opening temperature threshold of the steam turbine based on the main steam shut-off valve temperature and a first preset function; Determining a second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and a second preset function; Based on the first valve opening temperature threshold, the second valve opening temperature threshold and a first preset temperature threshold, a valve opening main steam temperature threshold interval of the steam turbine is determined.

[0010] Optionally, determining the valve opening main steam temperature threshold interval of the steam turbine based on the first valve opening temperature threshold, the second valve opening temperature threshold and a first preset temperature threshold includes: The first valve opening temperature threshold and the second valve opening temperature threshold are compared, and the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the lower limit value of the valve opening main steam temperature of the steam turbine, and the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the upper limit value of the valve opening main steam temperature of the steam turbine; The lower limit value of the valve-opening main steam temperature is compared with the first preset temperature threshold. When the lower limit value of the valve-opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve-opening main steam temperature, and the valve-opening main steam temperature threshold range of the turbine is determined. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder, and the first preset temperature threshold is less than the upper limit value of the valve-opening main steam temperature of the turbine.

[0011] According to a third aspect of an embodiment of the present disclosure, a non-temporary computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the main steam temperature regulation method described in the second aspect of the embodiment of the present disclosure are implemented.

[0012] According to a fourth aspect of an embodiment of the present disclosure, there is provided an electronic device, including: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the steps of the main steam temperature regulation method described in the second aspect of the embodiment of the present disclosure.

[0013] According to a fifth aspect of an embodiment of the present disclosure, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of the main steam temperature regulation method described in the second aspect of an embodiment of the present disclosure.

[0014] In the above technical solution, the data acquisition module is used to obtain the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine, and send the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature to the data processing module; the data processing module is used to determine the valve-opening main steam temperature threshold interval of the steam turbine based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, and send the valve-opening main steam temperature threshold interval of the steam turbine to the control module; the control module is used to control the steam turbine to start running when the main steam temperature of the steam turbine is within the main steam temperature threshold interval. Through the above technical solution, the valve-opening main steam temperature threshold interval of the steam turbine can be determined based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine, and the operation of the steam turbine can be controlled by judging whether the main steam temperature is within the main steam temperature threshold interval. The starting main steam temperature of the steam turbine can be selected within the main steam temperature threshold interval at different high-pressure cylinder outer upper cylinder temperatures, thereby improving the controllability of the steam turbine operating parameters.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a block diagram of a main steam temperature regulation system according to an exemplary embodiment.

[0017] Figure 2 is a block diagram of another main steam temperature regulation system according to an exemplary embodiment.

[0018] Figure 3 The figure is a flow chart of a main steam temperature regulating method according to an exemplary embodiment.

[0019] Figure 4 The present invention is a flow chart showing another main steam temperature regulating method according to an exemplary embodiment.

[0020] Figure 5 is a flow chart of yet another main steam temperature adjustment method according to an exemplary embodiment.

[0021] Figure 6 is a block diagram of an electronic device 600 according to an exemplary embodiment.

[0022] Figure 7 is a block diagram of an electronic device 700 according to an exemplary embodiment. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0024] It is understood that the terms "first", "second", etc. in the present disclosure are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or importance.

[0025] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0026] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0027] Figure 1 is a block diagram of a main steam temperature adjustment system according to an exemplary embodiment. Figure 1 As shown, the main steam temperature adjustment system 100 includes: a data acquisition module 101, a data processing module 102 and a control module 103; The data acquisition module 101 is used to acquire the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine, and send the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature to the data processing module 102; The data processing module 102 is used to determine the valve opening main steam temperature threshold interval of the steam turbine based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, and send the valve opening main steam temperature threshold interval of the steam turbine to the control module 103; The control module 103 is used to control the steam turbine to start running when the main steam temperature of the steam turbine is within the main steam temperature threshold range.

[0028] Exemplarily, when the main steam temperature regulation system 100 is running, the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine are obtained through the data acquisition module 101, and the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature are sent to the data processing module 102; the data processing module 102 calculates the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature through a preset function based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, and obtains the upper and lower limit thresholds of the main steam temperature of the steam turbine, so as to determine the valve-opening main steam temperature threshold interval of the steam turbine through the main steam temperature upper and lower limit thresholds, and send the valve-opening main steam temperature threshold interval of the steam turbine to the control module 103; when the main steam temperature of the steam turbine is within the main steam temperature threshold interval, the control module 103 controls the steam turbine to start running, and can select the turbine starting main steam temperature within the main steam temperature threshold interval, thereby improving the controllability of the turbine operating parameters.

[0029] Figure 2 is a block diagram of another main steam temperature adjustment system according to an exemplary embodiment. Figure 2 As shown, the data processing module 102 includes: a first threshold determination unit 1021 and a second threshold determination unit 1022; The first threshold determination unit 1021 is used to determine a first valve opening temperature threshold of the steam turbine based on the main steam shut-off valve temperature and a first preset function.

[0030] The second threshold determination unit 1022 is used to determine the second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and a second preset function.

[0031] Exemplarily, the first threshold determination unit 1021 determines the first valve opening temperature threshold of the steam turbine based on the main steam shut-off valve temperature and the first preset function. For example, when the main steam shut-off valve temperature is between (200 and 400°C), the first preset function relationship is y=0.7668X +246.63, and the first valve opening temperature threshold is determined based on the acquired main steam shut-off valve temperature. The second threshold determination unit 1022 is used to determine the second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and the second preset function. For example, when the high-pressure cylinder outer upper cylinder temperature is between (335 and 480°C), the second preset function relationship is y=0.6742X +194.15, and the second valve opening temperature threshold is determined based on the high-pressure cylinder outer upper cylinder temperature.

[0032] Optionally, The data processing module 102 is also used to compare the first valve opening temperature threshold and the second valve opening temperature threshold, and use the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold as the lower limit value of the valve opening main steam temperature of the steam turbine, and use the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold as the upper limit value of the valve opening main steam temperature of the steam turbine, so as to determine the valve opening main steam temperature threshold range of the steam turbine.

[0033] Exemplarily, the first valve opening temperature threshold and the second valve opening temperature threshold are calculated through the functional relationship preset in the data processing module 102, the first valve opening temperature threshold and the second valve opening temperature threshold are compared, the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the lower limit value of the valve opening main steam temperature of the steam turbine, and the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the upper limit value of the valve opening main steam temperature of the steam turbine, and the valve opening main steam temperature threshold interval of the steam turbine is determined, so that the main steam temperature range of the steam turbine at the start-up can be controlled within the valve opening main steam temperature threshold interval of the steam turbine, and the stable and controllable starting main steam temperature of the steam turbine can be achieved.

[0034] Optionally, The data processing module 102 is also used to compare the lower limit value of the valve opening main steam temperature with a first preset temperature threshold. When the lower limit value of the valve opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve opening main steam temperature. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder.

[0035] Exemplarily, when the steam turbine is hot started, the temperature of the turbine cylinder and various metal parts is relatively high, and there are temperature differences and deformations. Therefore, special attention needs to be paid to the safety of the steam turbine. In order to avoid the impact of negative temperature difference startup on the safety of the turbine startup process during the hot start of the steam turbine, a first preset temperature threshold is determined based on the temperature of the upper cylinder outside the high-pressure cylinder. For example: the first preset temperature threshold is set to be 30-50°C higher than the temperature of the upper cylinder outside the high-pressure cylinder, and the lower limit value of the valve-opening main steam temperature is compared with the first preset temperature threshold. When the lower limit value of the valve-opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve-opening main steam temperature, and the valve-opening main steam temperature threshold range of the steam turbine is updated. This can avoid exceeding the limit during the parameter selection process of the turbine main steam temperature and causing damage to components in the turbine, thereby improving the safety of the turbine operation.

[0036] Through the above technical scheme, the valve opening main steam temperature threshold interval of the steam turbine can be determined based on the main steam shut-off valve temperature of the steam turbine and the temperature of the upper cylinder outside the high-pressure cylinder, and the operation of the steam turbine can be controlled by judging whether the main steam temperature is within the main steam temperature threshold interval. The starting main steam temperature of the steam turbine can be selected within the main steam temperature threshold interval under different upper cylinder temperatures outside the high-pressure cylinder, thereby improving the controllability of the turbine operating parameters.

[0037] Figure 3 is a flow chart of a main steam temperature adjustment method according to an exemplary embodiment. Figure 3 As shown, the method includes: In step S11, the main steam shutoff valve temperature and the high-pressure outer upper cylinder temperature of the steam turbine are acquired.

[0038] In step S12, based on the main steam shut-off valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold, the valve opening main steam temperature threshold range of the steam turbine is determined.

[0039] In step S13, the operation of the steam turbine is controlled based on the valve opening main steam temperature threshold range of the steam turbine.

[0040] Exemplarily, the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine are obtained, and based on the main steam shut-off valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold, the valve-opening main steam temperature threshold interval of the steam turbine is determined, and based on the valve-opening main steam temperature threshold interval of the steam turbine, the operation of the steam turbine is controlled; for example: the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine are determined by measurement, and according to the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, the valve-opening main steam temperature threshold interval of the steam turbine is determined based on a preset function, and when the main steam temperature of the steam turbine is within the valve-opening main steam temperature threshold interval, the steam turbine is controlled to start.

[0041] Figure 4 is a flow chart of another main steam temperature adjustment method according to an exemplary embodiment. Figure 4 As shown, step S12 includes: In step S121, a first valve opening temperature threshold of the steam turbine is determined based on the main steam shut-off valve temperature and a first preset function.

[0042] In step S122, a second valve opening temperature threshold of the steam turbine is determined based on the high-pressure cylinder outer upper cylinder temperature and a second preset function.

[0043] In step S123, based on the first valve opening temperature threshold, the second valve opening temperature threshold and the first preset temperature threshold, the valve opening main steam temperature threshold interval of the steam turbine is determined.

[0044] Exemplarily, a first preset function and a second preset function are set in the main steam temperature control system, and a first valve opening temperature threshold of the steam turbine is determined based on the main steam shut-off valve temperature and the first preset function, and a second valve opening temperature threshold of the steam turbine is determined based on the high-pressure cylinder outer upper cylinder temperature and the second preset function. Taking into account the impact of negative temperature difference start-up on the safety of the steam turbine during the hot start-up of the steam turbine, the first preset temperature threshold is set based on the high-pressure cylinder outer upper cylinder temperature, and the valve opening main steam temperature threshold range of the steam turbine is determined according to the first valve opening temperature threshold, the second valve opening temperature threshold and the first preset temperature threshold; for example: in actual application, when the main steam shut-off valve temperature is between (200 and 400°C), the first preset function relationship is y=0.7668X +246.63, and when the high-pressure cylinder outer upper cylinder temperature is between (335 and 480°C), the second preset function relationship is y=0.6742X +194.15.

[0045] Figure 5 is a flow chart of another main steam temperature adjustment method according to an exemplary embodiment. Figure 5 As shown, step S123 includes: In step S1231, the first valve opening temperature threshold and the second valve opening temperature threshold are compared, and the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the lower limit value of the valve opening main steam temperature of the steam turbine, and the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the upper limit value of the valve opening main steam temperature of the steam turbine.

[0046] In step S1232, the lower limit value of the valve-opening main steam temperature is compared with the first preset temperature threshold. When the lower limit value of the valve-opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve-opening main steam temperature, and the valve-opening main steam temperature threshold range of the steam turbine is determined. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder, and the first preset temperature threshold is less than the upper limit value of the valve-opening main steam temperature of the steam turbine.

[0047] Exemplarily, by comparing the calculated first valve opening temperature threshold and the second valve opening temperature threshold, the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the lower limit value of the valve opening main steam temperature of the steam turbine, and the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the upper limit value of the valve opening main steam temperature of the steam turbine. Considering the impact of negative temperature difference start-up on the safety of the steam turbine during the hot start-up of the steam turbine, a first preset temperature threshold is set based on the upper cylinder temperature outside the high-pressure cylinder, and the lower limit value of the valve opening main steam temperature is compared with the first preset temperature threshold. When the lower limit value of the valve opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve opening main steam temperature to determine the valve opening main steam temperature threshold range of the steam turbine, so as to achieve stable and controllable starting main steam temperature of the steam turbine.

[0048] Through the above technical scheme, the valve opening main steam temperature threshold interval of the steam turbine can be determined based on the main steam shut-off valve temperature of the steam turbine and the temperature of the upper cylinder outside the high-pressure cylinder, and the operation of the steam turbine can be controlled by judging whether the main steam temperature is within the main steam temperature threshold interval. The starting main steam temperature of the steam turbine can be selected within the main steam temperature threshold interval under different upper cylinder temperatures outside the high-pressure cylinder, thereby improving the controllability of the turbine operating parameters.

[0049] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0050] Figure 6 FIG. 6 is a block diagram of an electronic device 600 according to an exemplary embodiment. Figure 6 As shown, the electronic device 600 may include: a processor 601 , a memory 602 . The electronic device 600 may also include one or more of a multimedia component 603 , an input / output (I / O) interface 604 , and a communication component 605 .

[0051] The processor 601 is used to control the overall operation of the electronic device 600 to complete all or part of the steps in the main steam temperature adjustment method described above. The memory 602 is used to store various types of data to support the operation of the electronic device 600. For example, these data may include instructions for any application or method used to operate on the electronic device 600, and application-related data, such as contact data, messages sent and received, pictures, audio, video, etc. The memory 602 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 603 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 602 or sent through the communication component 605. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 604 provides an interface between the processor 601 and other interface modules, and the above-mentioned other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 605 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0052] In an exemplary embodiment, the electronic device 600 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned main steam temperature regulation method.

[0053] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the main steam temperature adjustment method described above are implemented. For example, the computer-readable storage medium may be the memory 602 including the program instructions, and the program instructions may be executed by the processor 601 of the electronic device 600 to complete the main steam temperature adjustment method described above.

[0054] Figure 7 is a block diagram of an electronic device 700 according to an exemplary embodiment. For example, the electronic device 700 may be provided as a server. Figure 7 The electronic device 700 includes a processor 722, which may be one or more, and a memory 732 for storing a computer program executable by the processor 722. The computer program stored in the memory 732 may include one or more modules, each corresponding to a set of instructions. In addition, the processor 722 may be configured to execute the computer program to perform the above-mentioned main steam temperature adjustment method.

[0055] In addition, the electronic device 700 may further include a power supply component 726 and a communication component 750, wherein the power supply component 726 may be configured to perform power management of the electronic device 700, and the communication component 750 may be configured to implement communication of the electronic device 700, for example, wired or wireless communication. In addition, the electronic device 700 may further include an input / output (I / O) interface 758. The electronic device 700 may operate based on an operating system stored in the memory 732.

[0056] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by the processor, the steps of the main steam temperature adjustment method described above are implemented. For example, the non-transitory computer-readable storage medium may be the memory 732 including the program instructions, and the program instructions may be executed by the processor 722 of the electronic device 700 to complete the main steam temperature adjustment method described above.

[0057] In another exemplary embodiment, a computer program product is also provided. The computer program product includes a computer program executable by a programmable device, and the computer program has a code portion for executing the above-mentioned main steam temperature adjustment method when executed by the programmable device.

[0058] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0060] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A main steam temperature control system, characterized in that: The system comprises: a data acquisition module, a data processing module and a control module; The data acquisition module is used to acquire the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine, and send the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature to the data processing module; The data processing module is used to determine the valve opening main steam temperature threshold interval of the steam turbine based on the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature, and send the valve opening main steam temperature threshold interval of the steam turbine to the control module; The control module is used for controlling the steam turbine to start running when the main steam temperature of the steam turbine is within the main steam temperature threshold range.

2. The system according to claim 1, characterized in that The data processing module includes: a first threshold determination unit and a second threshold determination unit; The first threshold value determination unit is used to determine a first valve opening temperature threshold value of the steam turbine based on the main steam shutoff valve temperature and a first preset function; The second threshold determination unit is used to determine a second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and a second preset function.

3. The system according to claim 2, characterized in that The data processing module is also used to compare the first valve opening temperature threshold and the second valve opening temperature threshold, and use the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold as the lower limit value of the valve opening main steam temperature of the steam turbine, and use the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold as the upper limit value of the valve opening main steam temperature of the steam turbine, so as to determine the valve opening main steam temperature threshold range of the steam turbine.

4. The system according to claim 3, characterized in that The data processing module is also used to compare the lower limit value of the valve opening main steam temperature with a first preset temperature threshold. When the lower limit value of the valve opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve opening main steam temperature. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder.

5. A main steam temperature adjustment method, characterized in that: Applied to the main steam temperature control system, including: Obtain the main steam shut-off valve temperature and the high-pressure cylinder outer upper cylinder temperature of the steam turbine; Determining a valve opening main steam temperature threshold interval of the steam turbine based on the main steam shutoff valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold; Based on the valve opening main steam temperature threshold range of the steam turbine, the operation of the steam turbine is controlled.

6. The method according to claim 5, characterized in that The step of determining the valve opening main steam temperature threshold interval of the steam turbine based on the main steam shutoff valve temperature, the high-pressure cylinder outer upper cylinder temperature and a first preset temperature threshold comprises: Determining a first valve opening temperature threshold of the steam turbine based on the main steam shut-off valve temperature and a first preset function; Determining a second valve opening temperature threshold of the steam turbine based on the high-pressure cylinder outer upper cylinder temperature and a second preset function; Based on the first valve opening temperature threshold, the second valve opening temperature threshold and a first preset temperature threshold, a valve opening main steam temperature threshold interval of the steam turbine is determined.

7. The method according to claim 6, characterized in that The step of determining the valve opening main steam temperature threshold interval of the steam turbine based on the first valve opening temperature threshold, the second valve opening temperature threshold and the first preset temperature threshold comprises: The first valve opening temperature threshold and the second valve opening temperature threshold are compared, and the smaller value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the lower limit value of the valve opening main steam temperature of the steam turbine, and the larger value of the first valve opening temperature threshold and the second valve opening temperature threshold is used as the upper limit value of the valve opening main steam temperature of the steam turbine; The lower limit value of the valve-opening main steam temperature is compared with the first preset temperature threshold. When the lower limit value of the valve-opening main steam temperature is less than or equal to the first preset temperature threshold, the first preset temperature threshold is set as the lower limit value of the valve-opening main steam temperature, and the valve-opening main steam temperature threshold range of the steam turbine is determined. The first preset temperature threshold is determined based on the upper cylinder temperature outside the high-pressure cylinder, and the first preset temperature threshold is less than the upper limit value of the valve-opening main steam temperature of the steam turbine.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method described in any one of claims 5 to 7 are implemented.

9. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 5 to 7.

10. A computer program product, comprising 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 5 to 7 are implemented.

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