A water injection emptying method, device, electronic equipment, storage medium and program product

Abstract

This disclosure provides a water injection and venting method, apparatus, electronic device, storage medium, and program product. During the initial water injection into a pipeline, this disclosure controls an electric valve to open the venting pipeline to purge air; detects the state parameters of the air flowing through the venting pipeline and determines whether these parameters meet preset conditions; the state parameters include at least one of the following: flow rate, pressure, and medium temperature; when the state parameters meet the preset conditions, the electric valve is controlled to close, completing the air venting. In summary, the technical solution provided by this disclosure can effectively improve the efficiency and accuracy of pipeline water injection and venting, ensure stable system pressure, and improve water circulation efficiency and system measurement accuracy.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a water injection and drainage method, apparatus, electronic device, storage medium, and program product. Background Technology

[0002] Currently, in conventional thermal power plants, workers typically need to manually inject water to purge air. Even in units controlled remotely, manual verification of water injection and purging is still required. This demands a high level of worker experience, involves a large amount of manual operation, and introduces significant measurement errors, potentially causing system pressure instability, affecting water circulation efficiency and system measurement accuracy. Summary of the Invention

[0003] This disclosure provides a water injection and drainage method, apparatus, electronic device, storage medium, and program product, which to a certain extent solve the problems of high worker experience requirements, large amount of manual operation, and large measurement errors caused by operation, which may lead to unstable system pressure, affect water circulation efficiency, and system measurement accuracy.

[0004] According to one aspect of this disclosure, a water injection and venting method is provided, the method comprising: when water is initially injected into a pipeline, controlling an electric valve to open a venting pipeline to vent air; detecting the state parameters of the air flowing through the venting pipeline and determining whether the state parameters meet preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; when the state parameters meet the preset conditions, controlling the electric valve to close to complete the air venting.

[0005] Furthermore, according to one aspect of the method of this disclosure, when the state parameter is a flow parameter, the preset condition is a first threshold; detecting the state parameter of the air flowing through the venting pipe and determining whether the state parameter meets the preset condition includes: adding a pressure tapping pipe in the venting pipe and installing a differential pressure flow meter in the pressure tapping pipe; acquiring the differential pressure signal detected by the differential pressure flow meter between the upstream and downstream of the pressure tapping pipe; the upstream is a pressure tapping point in the pressure tapping pipe near the air inflow end in the venting pipe; the downstream is a pressure tapping point in the pressure tapping pipe near the air outflow end; performing a first preprocessing on the differential pressure signal to obtain the state parameter; the first preprocessing includes at least one of the following: eliminating water hammer effect, removing noise, and linear transformation; when the state parameter is greater than or equal to the first threshold, determining that the state parameter meets the preset condition; when the state parameter is less than the first threshold, determining that the state parameter does not meet the preset condition.

[0006] Furthermore, according to one aspect of the method of this disclosure, the first threshold is determined based on the water injection rate and the drainage flow rate.

[0007] Furthermore, according to one aspect of the method of this disclosure, when the state parameter is a pressure parameter, the preset condition is a first pressure range; detecting the state parameter of the air flowing through the venting pipe and determining whether the state parameter meets the preset condition includes: installing a pressure sensor in the venting pipe; the pressure sensor is installed at a vertical section, a horizontal straight section, or a corner of the vertical and horizontal straight sections of the venting pipe; acquiring the static pressure signal in the venting pipe detected by the pressure sensor; performing a second preprocessing on the static pressure signal to obtain the state parameter; the second preprocessing includes at least one of the following: temperature compensation, noise filtering; when the state parameter is within the first pressure range, determining that the state parameter meets the preset condition; when the state parameter is not within the first pressure range, determining that the state parameter does not meet the preset condition.

[0008] Furthermore, according to one aspect of the method of this disclosure, when the state parameter is a medium temperature parameter, the preset condition is a second threshold; detecting the state parameter of the air flowing through the venting pipe and determining whether the state parameter meets the preset condition includes: setting a temperature sensor in the venting pipe; the temperature sensor is set close to the inner wall of the pipe and located in a straight section where the air flow velocity is stable; acquiring the medium temperature signal in the venting pipe collected by the temperature sensor; performing a third preprocessing on the medium temperature parameter to obtain the state parameter; the third preprocessing includes at least one of the following: averaging filtering, medium temperature correction; when the state parameter is greater than or equal to the second threshold, determining that the state parameter meets the preset condition; when the state parameter is less than the second threshold, determining that the state parameter does not meet the preset condition.

[0009] Furthermore, according to one aspect of the method disclosed, the method further includes: when the state parameter does not meet the preset condition, keeping the electric valve open until the state parameter meets the preset condition and then controlling the electric valve to close.

[0010] Furthermore, according to one aspect of the method disclosed, the method is applied to a thermal power plant.

[0011] According to another aspect of this disclosure, a water injection and venting device is provided, comprising: a first control unit for controlling an electric valve to open the venting pipe to vent air when water is initially injected into the pipe; a detection unit for detecting the state parameters of the air or water flowing through the venting pipe and determining whether the state parameters meet preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; and a second control unit for controlling the electric valve to close to complete the air venting when the state parameters meet the preset conditions.

[0012] According to another aspect of this disclosure, an electronic device is provided, comprising: a memory for storing computer-readable instructions; and a processor for executing the computer-readable instructions, causing the electronic device to perform a method as described in any embodiment of one aspect.

[0013] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided for storing computer-readable instructions that, when executed by a processor, cause the processor to perform a method as described in any embodiment of one aspect.

[0014] According to another aspect of this disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the method as described in any embodiment of one aspect.

[0015] This disclosure provides a water injection and purging method, apparatus, electronic device, storage medium, and program product. During the initial water injection into a pipeline, this disclosure controls an electric valve to open the purging pipeline to purge air; detects the state parameters of the air flowing through the purging pipeline and determines whether these parameters meet preset conditions; the state parameters include at least one of the following: flow rate, pressure, and medium temperature; when the state parameters meet the preset conditions, the electric valve is closed to complete the air purging. Compared to existing methods that rely on manual judgment or require manual intervention for remote program control, this disclosure achieves fully automated judgment and control of the water injection and purging process by detecting the air state parameters in the purging pipeline. It can accurately complete the air purging operation without manual intervention, significantly reducing reliance on worker experience and minimizing manual operations and measurement errors caused by human factors. In summary, the technical solution provided by this disclosure can effectively improve the efficiency and accuracy of pipeline water injection and purging, ensure stable system pressure, and improve water circulation efficiency and system measurement accuracy.

[0016] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0017] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 A schematic diagram of an existing water injection and drainage pipeline provided in an embodiment of this disclosure; Figure 2 A schematic flowchart of a water injection and drainage method provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of a water injection and drainage pipeline structure provided in an embodiment of the present disclosure; Figure 4A structural block diagram of a water injection and drainage device provided in an embodiment of this disclosure; Figure 5 A hardware block diagram of an electronic device provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of a computer-readable storage medium provided in an embodiment of this disclosure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0020] Currently, in conventional thermal power plants, workers typically need to manually inject water to purge air. Even units operated via remote program control require manual verification of whether the water injection and purging are successful. This requires a high level of worker experience, involves a large amount of manual operation, and introduces significant measurement errors, potentially causing system pressure instability, affecting water circulation efficiency and system measurement accuracy. This disclosure also provides the structure of specific existing water injection and purging pipelines. Figure 1 , Figure 1 A schematic diagram of an existing water injection and drainage pipeline provided for an embodiment of this disclosure. Figure 1 Serial number 1 is a manually controlled valve, typically installed at the connection between the drain pipe and the main pipe. Workers must be on-site to manually turn it using tools such as wrenches to control its opening and closing. The degree of valve opening relies entirely on manual feel and experience. Serial number 2 is the drain pipe. Serial number 3 is the main pipe. When water filling and draining are required, manually open the manually controlled valve (seriously, wait for a stable flow of water to emerge from the drain pipe (no air inside), then the water filling is considered complete.

[0021] Therefore, in response to the aforementioned problems, this disclosure provides a water injection and venting method that can achieve fully automated judgment and control of the water injection and venting process by detecting the air state parameters in the venting pipeline. The air venting operation can be accurately completed without manual intervention, greatly reducing reliance on worker experience, reducing manual operation and measurement errors caused by human factors.

[0022] Next, this disclosure provides a method for water injection and drainage. Please refer to... Figure 2 , Figure 2 This is a schematic flowchart illustrating a water injection and drainage method provided in an embodiment of this disclosure. Figure 2 As shown, the method includes: In step S201, when the pipeline is first filled with water, the electric valve is controlled to open the drain pipe to purge air. In step S202, the state parameters of the air flowing through the venting pipe are detected, and it is determined whether the state parameters meet the preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; In step S203, when the state parameters meet the preset conditions, the electric valve is controlled to close to complete the air venting.

[0023] In this disclosure, an electric valve can be understood as a valve driven by a motor that can be automatically opened and closed via remote control signals. It is installed at the connection between the drain pipe and the main pipe, replacing the traditional manual control valve, and can accurately respond to control commands to adjust the on / off state of the pipe. In this disclosure, state parameters can be understood as quantitative indicators used to characterize the physical properties of air (or gas-liquid mixture) flowing through the venting pipe. By monitoring and analyzing these indicators, the degree of air discharge from the pipe can be determined. Specifically, the flow rate parameter can be understood as the volume or mass of the medium (initially mainly air, but may gradually change to water) flowing through the venting pipe per unit time; the pressure parameter can be understood as the pressure generated by the medium within the venting pipe, the magnitude of which changes with the state of the medium during air discharge; and the medium temperature parameter can be understood as the temperature of the medium flowing through the venting pipe, with the temperature difference between air and water helping to determine the change in medium type. Specifically, during the initial water injection into the pipeline, after the electric valve is opened, the air in the pipeline is first discharged through the venting pipe. At this time, the flow rate and pressure parameters are relatively low, and the medium temperature is close to the ambient temperature. As the water injection process progresses, the air gradually decreases, and water begins to enter the venting pipe. The flow rate will increase significantly, the pressure parameter will tend to stabilize and gradually rise, and the medium temperature will also change accordingly due to the flow of water. When the state parameters reach the preset condition values, it indicates that the air in the pipeline has been basically discharged. At this time, the electric valve is closed to complete the air venting operation. The following section will elaborate on the method for determining the state parameter when it is a flow parameter, including... When the status parameter is a flow rate parameter, the preset condition is a first threshold; detect the status parameters of the air flowing through the vent pipe and determine whether the status parameters meet the preset conditions, including: A pressure tapping pipe is added to the venting pipe, and a differential pressure flow meter is installed in the pressure tapping pipe; the differential pressure signal detected by the differential pressure flow meter is obtained between the upstream and downstream of the pressure tapping pipe; the upstream is the pressure tapping point in the pressure tapping pipe near the air inflow end in the venting pipe; the downstream is the pressure tapping point in the pressure tapping pipe near the air outflow end. The differential pressure signal is subjected to a first preprocessing step to obtain state parameters; the first preprocessing step includes at least one of the following: eliminating water hammer effect, removing noise, and linear transformation; When the state parameter is greater than or equal to the first threshold, it is determined that the state parameter meets the preset condition; When the state parameter is less than the first threshold, it is determined that the state parameter does not meet the preset condition.

[0024] In this disclosure, the first threshold can be understood as the critical flow rate value for determining whether the air-dominant component in the drain pipe has changed to a water-dominant component. That is, when the flow rate through the drain pipe reaches or exceeds this value, it can be considered that the air in the pipe has been essentially exhausted. The first threshold of this disclosure is determined based on the water injection rate and the drain flow rate. The water injection rate can be understood as the rate at which water is injected into the system from the main pipe, usually expressed as the volume or mass of water injected per unit time. The drain flow rate can be understood as the flow rate of the medium (air or water) discharged through the drain pipe, and its magnitude changes dynamically with the progress of air removal from the pipe. The first threshold needs to be determined by combining the water injection rate and the design capacity of the drain pipe. For example, the minimum drainage flow rate theoretically required when all the air has been removed can be calculated using the water injection rate, or a critical flow rate value that stably reflects the flow of the water medium can be obtained through actual operating condition testing. In this disclosure, a differential pressure flow meter is a device for measuring flow rate based on the principle that the pressure difference generated during fluid flow has a specific relationship with the flow rate. It typically consists of a throttling device (such as an orifice plate or nozzle) and a differential pressure transmitter. It can be used to acquire instantaneous flow pulse signals. By detecting the pressure difference change generated when fluid flows through the throttling device in the drain pipe, the pressure difference signal is converted into an electrical pulse signal corresponding to the flow rate, thereby achieving real-time monitoring of the instantaneous flow rate. In this disclosure, the first preprocessing can be understood as: converting the raw differential pressure signal collected by the differential pressure flowmeter into an effective signal that truly reflects the flow rate of the medium in the venting pipeline. This involves a systematic processing operation targeting interference factors (such as pressure surges and electromagnetic noise) and nonlinear characteristics present in the signal. Its core is to correct signal deviations and eliminate invalid interference through technical means, providing a reliable input for accurate calculation of flow parameters. Specifically, the first preprocessing operations include: eliminating water hammer effects by using an adaptive sliding window filter to perform a moving average calculation on the raw differential pressure signal, ensuring that the signal fluctuation amplitude is controlled within a preset range; noise removal by filtering high-frequency electromagnetic interference through the hardware low-pass filter circuit built into the differential pressure transmitter, thereby improving the signal-to-noise ratio; and linear transformation by using the Bernoulli equation and the calibration curve calibrated at the flowmeter's factory to linearly fit the denoised differential pressure signal, generating an electrical signal that linearly corresponds to the actual flow rate.

[0025] Specifically, when acquiring flow parameters, the range parameters of the differential pressure flow meter and the corresponding standard electrical signal output range can be obtained. By establishing a linear mapping relationship between the two, the linearized electrical signal after the first preprocessing is converted into the corresponding instantaneous physical flow value. Subsequently, the arithmetic average of the instantaneous physical flow values ​​of the continuous sampling period is calculated to eliminate the interference of flow fluctuations in a short period of time. The final average value is the flow parameter (state parameter) used for judgment. It is then compared with the first threshold to complete the judgment of the state of the medium in the emptied pipeline. For example, Figure 3 This is a schematic diagram of a water injection and drainage pipeline structure provided as an embodiment of this disclosure. From... Figure 3 It can be seen that: Serial number 1 is an electric valve. Serial number 2 is the venting pipeline. Serial number 3 is the main pipeline. Serial number 4 is the differential pressure flow meter tap. Serial number 5 is the differential pressure flow meter. When the pipeline is vented, the flow signal is transmitted to the control system (e.g., a Distributed Control System, DCS). When the system pipeline is vented, the venting electric control valve 1 automatically opens, the pipeline begins to vent, and water flows out of the funnel. When there is a continuous and stable water flow, the flow rate Q is used as the basis for ending the venting process. When the system starts venting again, the following process occurs: Water venting—venting electric valve opens—flow signal Q is sent to the control system—the control system determines that the flow rate has reached the venting requirement—a command is sent to the venting electric valve—the venting electric valve automatically closes, and the pipeline venting ends. If the system is started by programmable control, it will proceed to the next node program. Compared to Figure 1 above, the water injection and drainage pipeline structure shown in Figure 3 represents a significant upgrade in its core components and operational logic. Figure 1 relies solely on manually controlled valves for operation, with the drainage endpoint determined entirely by manual observation of the water flow. In contrast, Figure 3 adds a differential pressure flow meter (number 5) and a pressure tapping pipe (number 4), and replaces the manual valves with automatically controllable electric valves (number 1). The differential pressure flow meter collects the flow signal within the drainage pipeline in real time, which is transmitted to the DCS and other control systems via the pressure tapping pipe. The system automatically determines whether drainage is complete based on preset flow conditions (such as the flow value Q corresponding to continuous and stable water flow) and then drives the electric valve to close automatically. The entire process requires no manual on-site operation or judgment, structurally constructing an automated closed loop of "monitoring-judgment-control," significantly improving the accuracy and efficiency of water injection and drainage.

[0026] The following will elaborate on the method for determining the state parameter when it is a pressure parameter, including: A pressure sensor is installed in the drain pipe; the pressure sensor is installed at the vertical section, horizontal straight section, or corner of the vertical and horizontal straight sections of the drain pipe. Acquire the static pressure signal in the venting pipe detected by the pressure sensor; perform a second preprocessing on the static pressure signal to obtain state parameters; the second preprocessing includes at least one of the following: temperature compensation and noise filtering; When the state parameter is within the first pressure range, it is determined that the state parameter meets the preset conditions; When the state parameter is not within the first pressure range, it is determined that the state parameter does not meet the preset conditions.

[0027] In this disclosure, the first pressure range can be understood as the pressure range within which the static pressure in the pipeline remains stable when the air in the pipeline is basically exhausted and the pipeline is filled with water and then emptied. Specifically, this range can be preset based on the pipeline design pressure, water injection pressure, and system operating conditions, for example, in the range of 0.3MPa-0.5MPa (the specific value is adjusted according to the actual system parameters). In this disclosure, a pressure sensor can be understood as a device that converts the static pressure signal in a venting pipe into a measurable electrical signal. Its core function is to sense the dynamic changes in pressure within the pipe in real time, providing raw pressure data for determining whether the air has been completely vented. It typically consists of a pressure-sensitive element and a signal processing circuit, and can accurately capture the entire pressure change process within the pipe, from a low-pressure state dominated by air to a stable high-pressure state when the pipe is filled with water. In this disclosure, the second preprocessing can be understood as a series of processing operations performed to eliminate interference factors and environmental influences in the static pressure signal, so that the processed signal can accurately reflect the actual pressure state in the pipeline. Its purpose is to improve the reliability and stability of the pressure signal and provide accurate data for subsequent determination of state parameters. Specifically, temperature compensation can correct the static pressure signal based on the temperature characteristic curve of the pressure sensor, eliminating pressure measurement deviations caused by temperature changes. Noise filtering can use digital filtering algorithms (such as Kalman filtering) to filter high-frequency noise in the static pressure signal, keeping the fluctuation amplitude of the pressure signal within a preset range.

[0028] Specifically, when acquiring pressure parameters, the static pressure signal in the venting pipe can be collected in real time by a pressure sensor and converted into a standard current signal. The current signal is then transmitted to the data acquisition module, converted into a digital signal by analog-to-digital conversion, and then preprocessed by temperature compensation and noise filtering. The preprocessed digital signal is then linearly converted into a physical pressure value according to the range of the pressure sensor. The physical pressure values ​​of the continuous sampling period are averaged to obtain the final pressure parameter (state parameter).

[0029] The following will elaborate on the method for determining the condition when the state parameter is the medium temperature parameter, including: When the state parameter is the medium temperature parameter, the preset condition is the second threshold; the state parameter of the air flowing through the vent pipe is detected, and it is determined whether the state parameter meets the preset condition, including:

[0030] A temperature sensor is installed in the venting pipe; the temperature sensor is installed close to the inner wall of the pipe and in a straight section where the air flow rate is stable. The medium temperature signal in the venting pipe is acquired by the temperature sensor; the medium temperature parameter is preprocessed in a third way to obtain the state parameter; the third preprocessing includes at least one of the following: average filtering and medium temperature correction; When the state parameter is greater than or equal to the second threshold, it is determined that the state parameter meets the preset condition; When the state parameter is less than the second threshold, it is determined that the state parameter does not meet the preset condition.

[0031] In this disclosure, the second threshold can be understood as a temperature threshold that distinguishes between air and water as the medium in the drain pipe. It can usually be set based on the difference between the water temperature and the ambient air temperature, for example, as the lower limit of the water temperature (e.g., 30°C, with the specific value adjusted according to the actual water temperature). In this disclosure, a temperature sensor can be understood as a device that can convert the temperature signal of the medium in the drain pipe into a measurable electrical signal (such as a resistance signal or a voltage signal). Its core function is to monitor the temperature change of the medium in the pipe in real time and provide raw temperature data for determining the type of medium (air or water). It is usually composed of a temperature-sensitive element (such as a thermocouple or a resistance temperature detector) and a signal conversion circuit. In this disclosure, the third preprocessing can be understood as a process to eliminate interference and deviations in the medium temperature signal, ensuring that the processed signal accurately reflects the actual temperature of the medium inside the pipeline. This aims to improve the accuracy and stability of the temperature signal and ensure the reliability of the state parameter determination. Specifically, averaging filtering can take the arithmetic mean of the medium temperature signal over consecutive sampling periods, eliminating temperature fluctuations caused by airflow disturbances and instantaneous sensor response deviations. Medium temperature correction can be performed by combining the difference between the pipeline outer wall temperature and the ambient temperature to correct the acquired medium temperature signal. Specifically, when acquiring the medium temperature parameter, the medium temperature signal in the drain pipe can be converted into a resistance signal or a millivolt signal by a temperature sensor; after being amplified and filtered by the signal conditioning circuit, it is transmitted to the data acquisition module for analog-to-digital conversion; the converted digital signal is subjected to a third preprocessing step of averaging filtering and medium temperature correction, and then converted into a physical temperature value according to the calibration curve of the temperature sensor. The average value of the physical temperature values ​​of the continuous sampling period is selected as the final medium temperature parameter (state parameter). The following will specifically describe the water injection and drainage method disclosed herein, which also includes: When the status parameters do not meet the preset conditions, the electric valve remains open until the status parameters meet the preset conditions, after which the electric valve is closed. Specifically, during the pipeline water filling and emptying process, if the detected status parameters (such as flow rate not reaching the first threshold, pressure not being in the first pressure range, and medium temperature not reaching the second threshold) do not meet the preset conditions, the control system will keep the electric valve open, allowing the air in the pipeline to continue to be discharged through the emptying pipe. Simultaneously, the system can monitor changes in the status parameters in real time. Once the status parameters reach the preset conditions, it immediately sends a command to control the electric valve to close, thereby ensuring that the air in the pipeline is completely discharged and preventing residual air due to premature valve closure. The following will describe in detail the application scenarios of the water injection and venting method disclosed herein: the method is applied to thermal power plants. Specifically, the water system of a thermal power plant encompasses several crucial components, including the boiler feedwater system, condensate system, and circulating water system. During initial startup, restart after maintenance, or periodic maintenance water injection, water injection and purging operations are required for these systems. For example, if air remains in the pipes during boiler feedwater injection, it may affect the stability of feedwater pressure and the heat transfer efficiency of the boiler's heating surfaces; residual air in the condensate system can lead to pipe corrosion and pump cavitation. The water injection and purging method disclosed herein can be applied to these scenarios, efficiently completing water injection and purging through automatic monitoring and control, ensuring the safe and stable operation of the water system, and improving the overall operating efficiency and economy of the thermal power plant.

[0032] This disclosure also provides a water injection and drainage device. Figure 4 A structural block diagram of a water injection and drainage device provided in this disclosure embodiment is shown below. Figure 4 As shown, the water injection and drainage device 400 includes: The first control unit 401 is used to control the electric valve to open the venting pipe to vent air when the pipe is first filled with water. The detection unit 402 is used to detect the state parameters of the air or water flowing through the drain pipe and determine whether the state parameters meet the preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; The second control unit 403 is used to control the electric valve to close and complete the air venting when the status parameters meet the preset conditions.

[0033] In one exemplary embodiment, the detection unit 402 is specifically configured to: when the state parameter is a flow parameter, the preset condition is a first threshold; detect the state parameter of the air flowing through the venting pipe and determine whether the state parameter meets the preset condition, including: adding a pressure tapping pipe in the venting pipe and setting a differential pressure flow meter in the pressure tapping pipe; acquiring the differential pressure signal detected by the differential pressure flow meter between the upstream and downstream of the pressure tapping pipe; the upstream is a pressure tapping point in the pressure tapping pipe near the air inflow end in the venting pipe; the downstream is a pressure tapping point in the pressure tapping pipe near the air outflow end; perform a first preprocessing on the differential pressure signal to obtain the state parameter; the first preprocessing includes at least one of the following: eliminating water hammer effect, removing noise, and linear transformation; when the state parameter is greater than or equal to the first threshold, determine that the state parameter meets the preset condition; when the state parameter is less than the first threshold, determine that the state parameter does not meet the preset condition.

[0034] In one exemplary embodiment, the detection unit 402 is specifically used to: determine the first threshold based on the water injection rate and the drainage flow rate.

[0035] In one exemplary embodiment, the detection unit 402 is specifically used for: when the state parameter is a pressure parameter, the preset condition is a first pressure range; detecting the state parameter of the air flowing through the venting pipe and determining whether the state parameter meets the preset condition, including: setting a pressure sensor in the venting pipe; the pressure sensor is set at the vertical section, horizontal straight section, or corner of the vertical section and horizontal straight section of the venting pipe; acquiring the static pressure signal in the venting pipe detected by the pressure sensor; performing a second preprocessing on the static pressure signal to obtain the state parameter; the second preprocessing includes at least one of the following: temperature compensation, noise filtering; when the state parameter is within the first pressure range, determining that the state parameter meets the preset condition; when the state parameter is not within the first pressure range, determining that the state parameter does not meet the preset condition.

[0036] In one exemplary embodiment, the detection unit 402 is specifically configured to: install a temperature sensor in the venting pipe; the temperature sensor is installed close to the inner wall of the pipe and located in a straight section where the air flow rate is stable; acquire the medium temperature signal collected by the temperature sensor in the venting pipe; perform a third preprocessing on the medium temperature parameter to obtain a state parameter; the third preprocessing includes at least one of the following: average filtering, medium temperature correction; when the state parameter is greater than or equal to a second threshold, determine that the state parameter meets the preset condition; when the state parameter is less than the second threshold, determine that the state parameter does not meet the preset condition.

[0037] In one exemplary embodiment, the second control unit 403 is further configured to: keep the electric valve open until the state parameter meets the preset condition when the state parameter does not meet the preset condition, and then control the electric valve to close.

[0038] In one exemplary embodiment, the first control unit 401 is specifically used for: applying the method to a thermal power plant.

[0039] Figure 5 This is a hardware block diagram of an electronic device provided according to an embodiment of the present disclosure. The electronic device 500 according to an embodiment of the present disclosure includes at least a processor and a memory for storing computer-readable instructions. When the computer-readable instructions are loaded and executed by the processor, the processor performs the water filling and draining method described in any of the preceding embodiments of the present disclosure.

[0040] Figure 5 The illustrated electronic device 500 specifically includes a central processing unit (CPU) 501, a graphics processing unit (GPU) 502, and a memory 503. These units are interconnected via a bus 504. The CPU 501 and / or GPU 502 can function as the aforementioned processor, and the memory 503 can function as the aforementioned memory storing computer-readable instructions. Furthermore, the electronic device 500 may also include a communication unit 505, a storage unit 506, an output unit 507, an input unit 508, and an external device 509, all of which are also connected to the bus 504.

[0041] Figure 6 This is a schematic diagram of a computer-readable storage medium provided in an embodiment of this disclosure. (As shown...) Figure 6 As shown, a computer-readable storage medium 600 according to an embodiment of the present disclosure stores computer-readable instructions 601 thereon. When the computer-readable instructions 601 are executed by a processor, the water filling and draining method described with reference to the above figures according to any embodiment of the present disclosure is performed. The computer-readable storage medium includes, but is not limited to, volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0042] This disclosure further provides a computer program product, including a computer program that, when executed by a processor, implements the water injection and drainage method described in any of the preceding embodiments of this disclosure.

[0043] The present disclosure provides a water injection and purging method, apparatus, electronic device, storage medium, and program product. During the initial water injection into a pipeline, the present disclosure controls an electric valve to open the purging pipeline to purge air; detects the state parameters of the air flowing through the purging pipeline and determines whether these parameters meet preset conditions; the state parameters include at least one of the following: flow rate, pressure, and medium temperature; when the state parameters meet the preset conditions, the electric valve is closed to complete the air purging. Thus, compared to existing methods that rely on manual judgment or require manual intervention for remote program control, the present disclosure achieves fully automated judgment and control of the water injection and purging process by detecting the air state parameters in the purging pipeline. This allows for precise air purging without manual intervention, significantly reducing reliance on worker experience and minimizing manual operations and measurement errors caused by human factors. In summary, the technical solution provided by the present disclosure effectively improves the efficiency and accuracy of pipeline water injection and purging, ensures stable system pressure, and improves water circulation efficiency and system measurement accuracy.

[0044] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0045] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0046] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0047] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0048] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0049] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0050] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0051] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A method for injecting and draining water, characterized in that, The method includes: When the pipeline is first filled with water, the electric valve is opened to vent the air from the drain pipe. The state parameters of the air flowing through the venting pipe are detected, and it is determined whether the state parameters meet preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; When the state parameters meet the preset conditions, the electric valve is controlled to close to complete the air venting.

2. The method according to claim 1, characterized in that, When the state parameter is the flow rate parameter, the preset condition is a first threshold; detecting the state parameter of the air flowing through the vent pipe and determining whether the state parameter meets the preset condition includes: Add a pressure-inducing pipe to the venting pipe, and install a differential pressure flow meter in the pressure-inducing pipe; The differential pressure signal detected by the differential pressure flow meter is obtained between the upstream and downstream sides of the pressure tapping pipe; the upstream side is the pressure tapping point in the pressure tapping pipe near the air inflow end of the exhaust pipe; the downstream side is the pressure tapping point in the pressure tapping pipe near the air outflow end. The differential pressure signal is subjected to a first preprocessing to obtain the state parameters; the first preprocessing includes at least one of the following: eliminating water hammer effect, removing noise, and linear transformation; When the state parameter is greater than or equal to the first threshold, it is determined that the state parameter satisfies the preset condition; When the state parameter is less than the first threshold, it is determined that the state parameter does not meet the preset condition.

3. The method according to claim 2, characterized in that, The first threshold is determined based on the water injection rate and the drainage flow rate.

4. The method according to claim 1, characterized in that, When the state parameter is the pressure parameter, the preset condition is the first pressure range; The detection of the state parameters of the air flowing through the vent pipe and the determination of whether the state parameters meet preset conditions include: A pressure sensor is installed in the drain pipe; the pressure sensor is installed at the vertical section, the horizontal straight section, or the corner of the vertical section and the horizontal straight section of the drain pipe. Acquire the static pressure signal in the venting pipe detected by the pressure sensor; The static pressure signal is subjected to a second preprocessing to obtain the state parameters; the second preprocessing includes at least one of the following: temperature compensation and noise filtering; When the state parameter is within the first pressure range, it is determined that the state parameter satisfies the preset condition; When the state parameter is not within the first pressure range, it is determined that the state parameter does not meet the preset condition.

5. The method according to claim 1, characterized in that, When the state parameter is a medium temperature parameter, the preset condition is a second threshold; the detection of the state parameter of the air flowing through the vent pipe and the determination of whether the state parameter meets the preset condition include: A temperature sensor is installed in the exhaust pipe; the temperature sensor is installed close to the inner wall of the pipe and in a straight section where the air flow rate is stable. Acquire the temperature signal of the medium inside the drain pipe collected by the temperature sensor; The state parameters are obtained by performing a third preprocessing on the medium temperature parameters; the third preprocessing includes at least one of the following: average filtering and medium temperature correction. When the state parameter is greater than or equal to the second threshold, it is determined that the state parameter satisfies the preset condition; When the state parameter is less than the second threshold, it is determined that the state parameter does not meet the preset condition.

6. The method according to claim 1, characterized in that, The method further includes: When the status parameter does not meet the preset condition, the electric valve remains open until the status parameter meets the preset condition, at which point the electric valve is controlled to close.

7. The method according to claim 1, characterized in that, The method is applied to thermal power plants.

8. A water injection and drainage device, characterized in that, The device includes: The first control unit is used to control the electric valve to open the venting pipe to vent air when the pipe is first filled with water. The detection unit is used to detect the state parameters of the air or water flowing through the drain pipe and determine whether the state parameters meet preset conditions; the state parameters include at least one of the following: flow rate parameter, pressure parameter, and medium temperature parameter; The second control unit is used to control the electric valve to close and complete the air venting when the state parameter meets the preset condition.

9. An electronic device, characterized in that, include: Memory, used to store computer-readable instructions; as well as A processor for executing the computer-readable instructions, causing the electronic device to perform the method as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium for storing computer-readable instructions, characterized in that, When the computer-readable instructions are executed by a processor, the processor performs the method as described in any one of claims 1-7.

11. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in any one of claims 1-7.

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