Boiler water feeding process display method and device, readable storage medium and electronic equipment

Abstract

The present disclosure relates to a boiler water feeding process display method, device, readable storage medium and electronic equipment, which can realize real-time display of the boiler water feeding process and help the operation personnel to monitor the progress of the boiler water feeding in real time. The boiler water feeding process display method comprises the following steps: determining a real-time water feeding flow rate in the boiler water feeding process and a water volume of a target system in the boiler, the target system being one of a boiler starting system, a superheater system and a reheater system; performing integral calculation on the real-time water feeding flow rate to obtain a current total water feeding amount; dividing the water volume minus the current total water feeding amount by the real-time water feeding flow rate to obtain a remaining water feeding time; and displaying the real-time water feeding flow rate, the current total water feeding amount and the remaining water feeding time.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of thermal power generation control, in particular, to a boiler water feeding process display method and device, readable storage medium and electronic equipment. BACKGROUND

[0002] In the thermal production process of a power plant, the boiler water feeding flow control is an important process parameter in the unit startup process. Therefore, accurately displaying the water feeding progress in the boiler startup process for control is very important to ensure the safety of the power plant.

[0003] However, the related art cannot achieve real-time monitoring of the boiler water feeding process, and the water feeding process is completely controlled by the actual experience of the operating personnel, lacking reliable real-time monitoring means, which is easy to cause the consequences of boiler water feeding overflow and water running. SUMMARY

[0004] The purpose of the present disclosure is to provide a boiler water feeding process display method, device, readable storage medium and electronic equipment, which realizes real-time display of the boiler water feeding process and helps the operating personnel to monitor the water feeding progress of the boiler in real time.

[0005] To achieve the above purpose, in a first aspect, the present disclosure provides a boiler water feeding process display method, comprising:

[0006] determining a real-time water feeding flow in the boiler water feeding process and a water volume of a target system in the boiler, the target system being one of a boiler startup system, a superheater system and a reheater system;

[0007] integrally calculating the real-time water feeding flow to obtain a current total water feeding amount;

[0008] dividing the water volume minus the current total water feeding amount by the real-time water feeding flow to obtain a remaining water feeding time;

[0009] displaying the real-time water feeding flow, the current total water feeding amount and the remaining water feeding time.

[0010] Optionally, the determining of the real-time water feeding flow in the boiler water feeding process comprises:

[0011] when the boiler water feeding process is a boiler startup water feeding process, determining a steam pump rotating speed;

[0012] when the steam pump rotating speed is greater than or equal to a first preset rotating speed, determining a steam pump recirculation flow and an average value of steam-driven feed water pump flows at a first preset flow measuring point and a second preset flow measuring point of the steam-driven feed water pump, and subtracting the steam pump recirculation flow from the average value of the steam-driven feed water pump flows to obtain the real-time water feeding flow in the boiler water feeding process;

[0013] determining a water supply pipeline flow average value of a third preset flow measuring point, a fourth preset flow measuring point and a fifth preset flow measuring point on the water supply pipeline when the steam pump rotation speed is less than the first preset rotation speed and greater than or equal to a second preset rotation speed, and determining the water supply pipeline flow average value as the real-time water filling flow in the boiler water filling process;

[0014] determining the steam-driven water supply pump flow average value as the real-time water filling flow in the boiler water filling process when the steam pump rotation speed is less than the second preset rotation speed.

[0015] Optionally, the method further comprises:

[0016] when the boiler water filling process is a superheater hydrostatic test water filling process, determining an electric recirculation flow and an electric water supply pump flow of a first preset flow measuring point and a second preset flow measuring point on the electric water supply pump, and obtaining the real-time water filling flow in the boiler water filling process by subtracting the electric recirculation flow from an average value of the electric water supply pump flow.

[0017] when the boiler water filling process is a reheater hydrostatic test water filling process, obtaining desuperheating water flows of a third preset flow measuring point and a fourth preset flow measuring point on the reheater, and determining the real-time water filling flow in the boiler water filling process by calculating an average value of the desuperheating water flows of the third preset flow measuring point and the fourth preset flow measuring point if the desuperheating water flows of the third preset flow measuring point and the fourth preset flow measuring point are obtained, or determining the real-time water filling flow in the boiler water filling process by taking the desuperheating water flow of one of the third preset flow measuring point and the fourth preset flow measuring point as the real-time water filling flow if the desuperheating water flow of one of the third preset flow measuring point and the fourth preset flow measuring point is obtained.

[0018] Optionally, the method further comprises:

[0019] before determining the real-time water filling flow in the boiler water filling process, judging whether the boiler satisfies at least two judgment conditions, including whether a steam pump pre-pump is in a starting state, whether an electric water supply pump pre-pump is in a starting state, whether a steam pump outlet electric door is opened, whether a water supply bypass front electric door is opened, whether a water supply bypass rear electric door is opened, whether the electric water supply pump is in a starting state, whether an average value of flows of the first preset flow measuring point and the second preset flow measuring point on the electric water supply pump is greater than a preset threshold value, and whether a reheater desuperheating water flow is greater than a preset flow threshold value.

[0020] the method further comprises:

[0021] when the boiler satisfies at least two of the judgment conditions, determining the real-time water filling flow in the boiler water filling process.

[0022] Optionally, the method further comprises:

[0023] determining the steam pump rotating speed before determining the real-time water filling flow rate in the boiler water filling process;

[0024] determining the water filling mode according to the steam pump rotating speed;

[0025] controlling the corresponding water filling mode indicator light to turn on according to the water filling mode.

[0026] Optionally, the method further comprises:

[0027] when the boiler water filling process is the boiler start-up water filling process, determining the economizer outlet pressure and the water tank liquid level value; when the economizer outlet pressure is greater than the preset pressure, outputting the alarm information for indicating that the water filling is about to be completed; when the water tank liquid level value is greater than the preset liquid level value, outputting the alarm information for indicating that the water filling is completed.

[0028] Optionally, the method further comprises:

[0029] when the boiler water filling process is the superheater hydrostatic test water filling process or the reheater hydrostatic test water filling process, if the remaining water filling time is less than the preset time, outputting the alarm information for indicating that the water filling is about to be completed;

[0030] if the remaining water filling time is equal to zero, outputting the alarm information for indicating that the water filling is completed.

[0031] In a second aspect, the present disclosure further provides a boiler water filling process display device, the device comprising:

[0032] a determination module for determining the real-time water filling flow rate in the boiler water filling process and the water volume of a target system in the boiler, the target system being one of a boiler start-up system, a superheater system and a reheater system;

[0033] a first calculation module for performing integral calculation on the real-time water filling flow rate to obtain a current total water filling amount;

[0034] a second calculation module for subtracting the current total water filling amount from the water volume and dividing the result by the real-time water filling flow rate to obtain a remaining water filling time;

[0035] a display module for displaying the real-time water filling flow rate, the current total water filling amount and the remaining water filling time.

[0036] Optionally, the determination module is configured to:

[0037] When the boiler water-filling process is a boiler start-up water-filling process, the rotational speed of the steam pump is determined; when the rotational speed of the steam pump is greater than or equal to a first preset rotational speed, the recirculation flow of the steam pump and the average value of the steam-driven feed water pump flow at the first preset flow measuring point and the second preset flow measuring point of the steam-driven feed water pump are determined, and the average value of the steam-driven feed water pump flow is subtracted by the recirculation flow of the steam pump to obtain the real-time water-filling flow in the boiler water-filling process; when the rotational speed of the steam pump is less than the first preset rotational speed and greater than or equal to a second preset rotational speed, the average value of the feed water pipeline flow at the third preset flow measuring point, the fourth preset flow measuring point and the fifth preset flow measuring point of the feed water pipeline is determined, and the average value of the feed water pipeline flow is determined as the real-time water-filling flow in the boiler water-filling process; when the rotational speed of the steam pump is less than the second preset rotational speed, the average value of the steam-driven feed water pump flow is determined as the real-time water-filling flow in the boiler water-filling process.

[0038] Optionally, the determining module is further configured to:

[0039] When the boiler water-filling process is a superheater water pressure test water-filling process, the electric recirculation flow and the electric feed water pump flow at the first preset flow measuring point and the second preset flow measuring point of the electric feed water pump are determined, and the average value of the electric feed water pump flow is subtracted by the electric recirculation flow to obtain the real-time water-filling flow in the boiler water-filling process.

[0040] When the boiler water-filling process is a reheater water pressure test water-filling process, the desuperheating water flow at the third preset flow measuring point and the fourth preset flow measuring point of the reheater is obtained, if the desuperheating water flow at the third preset flow measuring point and the fourth preset flow measuring point is obtained, the average value of the desuperheating water flow at the third preset flow measuring point and the fourth preset flow measuring point is calculated, and the average value of the desuperheating water flow is determined as the real-time water-filling flow in the boiler water-filling process; if the desuperheating water flow at one of the third preset flow measuring point and the fourth preset flow measuring point is obtained, the obtained desuperheating water flow is determined as the real-time water-filling flow in the boiler water-filling process.

[0041] Optionally, the boiler water-filling process display device further comprises a judging module configured to:

[0042] Before determining the real-time water-filling flow in the boiler water-filling process, it is judged whether the boiler satisfies at least two judgment conditions: whether the steam pump pre-pump is in a start-up state, whether the electric feed water pump pre-pump is in a start-up state, whether the steam pump outlet electric door is opened, whether the feed water bypass front electric door is opened, whether the feed water bypass rear electric door is opened, whether the electric feed water pump is in a start-up state, whether the average value of the flow at the first preset flow measuring point and the second preset flow measuring point of the electric feed water pump is greater than a preset threshold, and whether the reheater desuperheating water flow is greater than a preset flow threshold; the real-time water-filling flow in the boiler water-filling process is determined, including: when the boiler satisfies the at least two judgment conditions, the real-time water-filling flow in the boiler water-filling process is determined.

[0043] Optionally, the boiler water-filling process display device further comprises a steam pump rotating speed determining module, which is configured to:

[0044] determine the steam pump rotating speed before determining the real-time water-filling flow rate in the boiler water-filling process; determine the water-filling mode according to the steam pump rotating speed; and control the corresponding water-filling mode indicator light to turn on according to the water-filling mode.

[0045] Optionally, the boiler water-filling process display device further comprises a first alarm module, which is configured to:

[0046] when the boiler water-filling process is the boiler start-up water-filling process, determine the economizer outlet pressure and the water tank liquid level value; when the economizer outlet pressure is greater than a preset pressure, output alarm information indicating that the water-filling is about to be completed; and when the water tank liquid level value is greater than a preset liquid level value, output alarm information indicating that the water-filling is completed.

[0047] Optionally, the boiler water-filling process display device further comprises a second alarm module, which is configured to:

[0048] when the boiler water-filling process is the superheater hydrostatic test water-filling process or the reheater hydrostatic test water-filling process, if the remaining water-filling time is less than a preset time, output alarm information indicating that the water-filling is about to be completed; and if the remaining water-filling time is equal to zero, output alarm information indicating that the water-filling is completed.

[0049] In a third aspect, the present disclosure further provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of the method according to any one of the first aspect.

[0050] In a fourth aspect, the present disclosure further provides an electronic device, which comprises:

[0051] a memory, which stores a computer program;

[0052] a processor, which is configured to execute the computer program in the memory to implement the steps of the method according to any one of the first aspect.

[0053] Through the above technical solution, the real-time water-filling flow rate in the boiler water-filling process and the water volume of the target system in the boiler can be determined, then the real-time water-filling flow rate is integrated to obtain the current total water-filling amount, and the remaining water-filling time is obtained by subtracting the current total water-filling amount from the water volume and dividing the result by the real-time water-filling flow rate, and finally the real-time water-filling flow rate, the current total water-filling amount and the remaining water-filling time can be displayed. Thus, the real-time display of the boiler water-filling process can be realized, and the operation personnel can monitor the progress of the boiler water-filling in real time.

[0054] Other features and advantages of the present disclosure will be described in detail in the following detailed description. Attached Figure Description

[0055] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0056] Figure 1 This is a flowchart illustrating a boiler water filling process display method according to an exemplary embodiment of the present disclosure;

[0057] Figure 2 This is a flowchart illustrating the start-up water filling process display in a boiler water filling process display method according to an exemplary embodiment of the present disclosure;

[0058] Figure 3 This is a flowchart illustrating the superheater test water filling process display in a boiler water filling process display method according to an exemplary embodiment of the present disclosure;

[0059] Figure 4 This is a flowchart illustrating the reheater test water filling process display in a boiler water filling process display method according to an exemplary embodiment of the present disclosure;

[0060] Figure 5 This is a block diagram of a boiler water filling process display device according to an exemplary embodiment of the present disclosure;

[0061] Figure 6 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0062] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0063] As mentioned in the background technology, the relevant technology cannot monitor the boiler water filling process in real time. It can only be judged as completed after the water filling is finished, when the water level in the boiler water tank or steam drum is displayed or water is visible to the naked eye at the superheater or reheater vent valve. The water filling process is entirely controlled by the actual experience of the operators, which can easily lead to boiler water overflow and leakage.

[0064] In view of this, the present disclosure provides a method for displaying the boiler water filling process to solve the problems in the related technology, realize the real-time display of the boiler water filling process, help operators monitor the boiler water filling progress in real time, and is applicable to the water filling process of boiler startup and superheater and reheater water pressure test.

[0065] Figure 1 This is a flowchart illustrating a boiler water filling process display method according to an exemplary embodiment of the present disclosure, with reference to...Figure 1 The method comprises:

[0066] In step S101, the real-time water filling flow rate in the boiler water filling process and the water volume of a target system in the boiler are determined, the target system being one of a boiler starting system, a superheater system and a reheater system.

[0067] For example, the specific value of the water volume of the target system in the boiler can be determined according to the specific model of the boiler, and the specific value and the specific determination process of the water volume of the target system in the boiler are not limited in the embodiments of the present disclosure.

[0068] In step S102, the real-time water filling flow rate is integrated to obtain a current total water filling amount.

[0069] In step S103, the water volume is subtracted by the current total water filling amount and then divided by the real-time water filling flow rate to obtain a remaining water filling time.

[0070] In step S104, the real-time water filling flow rate, the current total water filling amount and the remaining water filling time are displayed.

[0071] In the above manner, the real-time display of the boiler starting and the water filling process of the superheater and reheater hydrostatic test can be realized, and the operation personnel can monitor the boiler water filling progress in real time, so that the overflow and water running phenomenon in the water filling process can be avoided.

[0072] In order to enable those skilled in the art to better understand the boiler water filling process display method in the embodiments of the present disclosure, the above steps are exemplarily described below.

[0073] In one possible manner, in step S101, when the boiler water filling process is a boiler starting water filling process, the steam pump rotating speed is determined; when the steam pump rotating speed is greater than or equal to a first preset rotating speed, the steam pump recirculation flow rate and the steam-driven feed water pump flow rate average value of the first preset flow rate measuring point and the second preset flow rate measuring point of the steam-driven feed water pump are determined, and the steam-driven feed water pump flow rate average value is subtracted by the steam pump recirculation flow rate to obtain the real-time water filling flow rate in the boiler water filling process; when the steam pump rotating speed is less than the first preset rotating speed and greater than or equal to a second preset rotating speed, the feed water pipeline flow rate average value of the third preset flow rate measuring point, the fourth preset flow rate measuring point and the fifth preset flow rate measuring point of the feed water pipeline is determined, and the feed water pipeline flow rate average value is determined as the real-time water filling flow rate in the boiler water filling process; when the steam pump rotating speed is less than the second preset rotating speed, the steam-driven feed water pump flow rate average value is determined as the real-time water filling flow rate in the boiler water filling process.

[0074] That is to say, the steam pump rotating speed can be determined first, and the real-time water filling flow in the boiler water filling process is determined by using three calculation methods according to the size relationship between the steam pump rotating speed and the first preset rotating speed and the second preset rotating speed. The steam pump rotating speed refers to the rotating speed of the steam-driven feed water pump. The steam pump recirculation flow refers to the recirculation flow of the steam-driven feed water pump.

[0075] For example, the steam pump rotating speed and the steam pump recirculation flow can be determined according to the actual situation of the unit operation, and the specific value of the steam pump rotating speed and the specific determination process are not limited in the embodiment of the present disclosure.

[0076] For example, the first preset rotating speed and the second preset rotating speed can be pre-set according to the actual situation, and the like, and the embodiment of the present disclosure is not limited to this, for example, the first preset rotating speed can be set to 2950 r / min and the second preset rotating speed can be set to 50 r / min according to a unit operation scene, or the first preset rotating speed can be set to 3000 r / min and the second preset rotating speed can be set to 60 r / min, and the like.

[0077] When the steam pump rotating speed is greater than or equal to the first preset rotating speed, at this time, the feed water flowing through the steam-driven feed water pump flowmeter returns to the deaerator through the recirculation pipeline, and the other part enters the boiler system through the main feed water pipeline. At this time, because the rotating speed of the steam-driven feed water pump is high, the flow through the main pump and the recirculation flow is large, and the data error gradually becomes small, and during the boiler start-up water filling process, the feed water flow is small, and the relative error is large, therefore, the difference between the average value of the steam-driven feed water pump flow and the steam pump recirculation flow is used to replace the measured value of the feed water flow measuring point, that is, the difference between the average value of the steam-driven feed water pump flow and the steam pump recirculation flow is used as the real-time water filling flow in the boiler water filling process. Specifically, the steam pump recirculation flow and the average value of the steam-driven feed water pump flow at the first preset flow measuring point and the second preset flow measuring point can be determined, and the average value of the steam-driven feed water pump flow is subtracted from the steam pump recirculation flow to obtain the real-time water filling flow in the boiler water filling process.

[0078] When the steam pump rotating speed is less than the first preset rotating speed and greater than or equal to the second preset rotating speed, at this time, the feed water flowing through the steam-driven feed water pump flowmeter returns to the deaerator through the recirculation pipeline, and the other part enters the boiler system through the main feed water pipeline, so the real-time flow calculation is performed through the flow measuring point data on the feed water pipeline. Specifically, the average value of the feed water pipeline flow at the third preset flow measuring point, the fourth preset flow measuring point and the fifth preset flow measuring point on the feed water pipeline can be calculated to obtain the real-time water filling flow in the boiler water filling process.

[0079] When the steam pump rotation speed is less than the second preset rotation speed, at this time, the feed water flowing through the steam feed water pump flow meter all enters the boiler system, so the flow calculation can be performed through the steam feed water pump real-time flow measurement point data. Specifically, the steam feed water pump flow average value of the first preset flow measurement point and the second preset flow measurement point on the steam feed water pump can be determined as the real-time water filling flow in the boiler water filling process.

[0080] For example, when the boiler water filling process is a boiler start-up water filling process, the steam pump rotation speed can be determined first, and then the real-time water filling flow is determined according to the steam pump rotation speed according to the following calculation formula:

[0081] Steam feed water pump rotation speed < second preset rotation speed:

[0082] V = (v q1 +v q2 ) / 2

[0083] Second preset rotation speed ≤ steam feed water pump rotation speed < first preset rotation speed:

[0084] V = (v g3 +v g4 +v g5 ) / 2

[0085] Steam feed water pump rotation speed ≥ first preset rotation speed:

[0086] V = (v q1 +v q2 ) / 2-v z

[0087] Wherein, V represents the real-time water filling flow,

[0088] v q1 represents the flow value of the first preset flow measurement point on the steam feed water pump, v q2 represents the flow value of the second preset flow measurement point, v g3 represents the flow value of the third preset flow measurement point on the feed water pipeline, v g4 represents the flow value of the fourth preset flow measurement point on the feed water pipeline, v g5 represents the flow value of the fifth preset flow measurement point on the feed water pipeline, and v z represents the steam pump recirculation flow.

[0089] In the above manner, by comparing the size relationship between the steam pump rotation speed and the first preset rotation speed and the second preset rotation speed, the data error can be reduced, and the accuracy of the data can be improved.

[0090] In a possible manner, the step S101 can be: when the boiler water-filling process is a superheater water pressure test water-filling process, determining the electric recirculation flow and the electric feed water pump flow of the first preset flow measuring point and the second preset flow measuring point of the electric feed water pump, and subtracting the average value of the electric feed water pump flow from the electric recirculation flow to obtain a real-time water-filling flow in the boiler water-filling process.

[0091] For example, the first preset flow measuring point and the second preset flow measuring point on the electric feed water pump can be set according to actual needs, and the embodiments of the present disclosure are not limited thereto.

[0092] For example, when the boiler water-filling process is a superheater water pressure test water-filling process, the real-time water-filling flow can be determined by the following calculation formula:

[0093]

[0094] wherein V represents the real-time water-filling flow, v d1 represents the flow value of the first preset flow measuring point on the electric feed water pump, v d2 represents the flow value of the second preset flow measuring point, v zd represents the electric recirculation flow.

[0095] In a possible manner, the step S101 can be: when the boiler water-filling process is a reheater water pressure test water-filling process, obtaining the desuperheating water flow of the third preset flow measuring point and the fourth preset flow measuring point on the reheater, if the desuperheating water flow of the third preset flow measuring point and the fourth preset flow measuring point is obtained, calculating the average value of the desuperheating water flow of the third preset flow measuring point and the fourth preset flow measuring point, and determining the average value of the desuperheating water flow as the real-time water-filling flow in the boiler water-filling process; if the desuperheating water flow of one of the third preset flow measuring point and the fourth preset flow measuring point is obtained, determining the obtained desuperheating water flow as the real-time water-filling flow in the boiler water-filling process.

[0096] For example, when the boiler water-filling process is a reheater water pressure test water-filling process, the real-time water-filling flow can be determined by the following calculation formula:

[0097] V=(v j3 +v j4 ) / 2

[0098] wherein V represents the real-time water-filling flow, v j3 represents the flow of the third preset flow measuring point of the desuperheating water on the reheater, v j4 represents the fourth preset flow measuring point.

[0099] It should be understood that in the process of determining the real-time water inflow according to the flow values of the third preset flow measuring point and the fourth preset flow measuring point in the embodiments of the present disclosure, the general logic set by the power plant can be used to automatically detect the failure of the measuring points, and the flow measuring point data after automatic removal of the failure points can be calculated.

[0100] Specifically, when the desuperheating water flow of the third preset flow measuring point and the fourth preset flow measuring point is obtained, it indicates that the third preset flow measuring point and the fourth preset flow measuring point are both normal and have not failed, so that the average value of the desuperheating water flow of the third preset flow measuring point and the fourth preset flow measuring point can be calculated, and finally the average value of the desuperheating water flow is determined as the real-time water inflow in the boiler water inflow process. When only the desuperheating water flow of one of the third preset flow measuring point and the fourth preset flow measuring point can be obtained, it indicates that one of the third preset flow measuring point and the fourth preset flow measuring point has failed, so that the desuperheating water flow of the flow measuring point which has not failed can be determined as the real-time water inflow in the boiler water inflow process. For example, only the desuperheating water flow of the third preset flow measuring point can be obtained, which indicates that the fourth preset flow measuring point has failed, so that the desuperheating water flow of the third preset flow measuring point can be determined as the real-time water inflow in the boiler water inflow process. For another example, only the desuperheating water flow of the fourth preset flow measuring point can be obtained, which indicates that the third preset flow measuring point has failed, so that the desuperheating water flow of the fourth preset flow measuring point can be determined as the real-time water inflow in the boiler water inflow process.

[0101] In a possible manner, before determining the real-time water inflow in the boiler water inflow process, it is determined whether the boiler satisfies at least two judgment conditions: whether the steam pump pre-pump is in a starting state, whether the electric feed water pump pre-pump is in a starting state, whether the steam pump outlet electric door is opened, whether the feed water bypass front electric door is opened, whether the feed water bypass rear electric door is opened, whether the electric feed water pump is in a starting state, whether the flow average value of the first preset flow measuring point and the second preset flow measuring point of the electric feed water pump is greater than a preset threshold, and whether the desuperheating water flow is greater than a preset flow threshold. The real-time water inflow in the boiler water inflow process is determined, including: when the boiler satisfies the at least two judgment conditions, the real-time water inflow in the boiler water inflow process is determined.

[0102] For example, the preset flow threshold of the desuperheating water flow and the preset flow threshold of the electric feed water pump can be set according to the actual situation of the unit operation, and the embodiments of the present disclosure are not limited thereto.

[0103] When the boiler water inflow process is a boiler starting water inflow process, whether the steam pump pre-pump is in a starting state is determined through an electrical switch closing signal of the steam pump pre-pump, and four signals including an opening signal of the steam pump outlet electric door, an opening signal of the front and rear electric doors of the main feed water bypass, etc. are compared to verify that the boiler starting water inflow system is in a conducting state.

[0104] When the boiler water charging process is the superheater water pressure test water charging process, the water charging mode is that the electric feed water pump charges water through the feed water pipeline. Whether the electric feed water pump pre-pump is in the starting state is determined by the electric switch closing signal of the electric feed water pump. Two signals, i.e., the opening signals of the front and rear electric doors of the main feed water bypass, are compared to verify that the boiler superheater water pressure test water charging system is in the on state. When the average value of the electric feed water pump flow at the first preset flow measuring point and the second preset flow measuring point of the electric feed water pump is greater than a preset threshold value, it can be determined that the electric feed water pump is in the external water supply state.

[0105] When the boiler water charging process is the reheater water pressure test water charging process, the water charging mode is that the electric feed water pump charges water through the desuperheating water pipeline. Whether the electric feed water pump pre-pump is in the starting state is determined by the electric switch closing signal of the electric feed water pump. Whether the electric feed water pump is in the external water supply state is determined by comparing the desuperheating water flow with a preset flow threshold value to verify that the boiler reheater water pressure test water charging system is in the on state.

[0106] Through the above mode, it can be verified whether the water charging system of the boiler starting, superheater and reheater water pressure test is in the on state. When it is in the on state, the indicator light for indicating the start of water charging is turned on and timing is started, and steps S101 to S104 are executed.

[0107] In a possible mode, before determining the real-time water charging flow in the boiler water charging process, the steam pump rotating speed is determined. According to the steam pump rotating speed, the water charging mode is determined. According to the water charging mode, the corresponding water charging mode indicator light is controlled to be turned on.

[0108] When the boiler water charging process is the boiler starting water charging process, there are two water charging modes, i.e., the steam pump pre-pump alone starting water charging and the steam pump main pump starting water charging. Therefore, the steam pump rotating speed can be determined to determine the water charging mode and control the corresponding water charging mode indicator light to be turned on. When the steam pump rotating speed is lower than a preset steam pump rotating speed threshold value, it can be determined that the steam pump main pump is not primed, the water charging adopts the steam pump pre-pump alone starting water charging mode, and the corresponding water charging mode indicator light is controlled to be turned on. When the steam pump rotating speed is higher than the preset steam pump rotating speed threshold value, it is determined that the steam pump main pump is primed, the water charging adopts the steam pump main pump starting water charging mode, and the corresponding water charging mode indicator light is controlled to be turned on.

[0109] For example, the steam pump rotating speed can be determined according to the actual situation of the unit operation, and the specific value and specific determination process of the steam pump rotating speed are not limited in the embodiments of the present disclosure.

[0110] For example, the corresponding water feeding mode indicator light can be a light of different colors, such as a yellow light when the water feeding mode is a pump pre-pump alone starting water feeding, a blue light when the water feeding mode is a pump main pump starting water feeding, and the like, which are not limited in the embodiments of the present disclosure.

[0111] After determining the real-time water feeding flow rate, the real-time water feeding flow rate can be integrated to obtain the current total water feeding amount.

[0112] It should be understood that the integration of the real-time water feeding flow rate is mainly based on the integration operation of instantaneous flow rate and time. For example, when the boiler water feeding process is a boiler starting water feeding process, the real-time water feeding flow rate can be integrated to obtain the current total water feeding amount according to the following calculation formula:

[0113]

[0114] wherein Q represents the current total water feeding amount, v represents the real-time water feeding flow rate, t0 represents the starting time, and t1 represents the current time.

[0115] For another example, when the boiler water feeding process is a superheater water pressure test water feeding process, the real-time water feeding flow rate can be integrated to obtain the current total water feeding amount according to the following calculation formula:

[0116]

[0117] wherein Q represents the current total water feeding amount, v represents the real-time water feeding flow rate, t0 represents the starting time, and t1 represents the current time.

[0118] For another example, when the boiler water feeding process is a reheater water pressure test water feeding process, the real-time water feeding flow rate can be integrated to obtain the current total water feeding amount according to the following calculation formula:

[0119]

[0120] wherein Q represents the current total water feeding amount, v represents the real-time water feeding flow rate, t0 represents the starting time, and t1 represents the current time.

[0121] After obtaining the total water feeding amount, the remaining water feeding time can be obtained by subtracting the current total water feeding amount from the water volume and dividing the result by the real-time water feeding flow rate.

[0122] For example, when the boiler water feeding process is a boiler starting water feeding process, the remaining water feeding time can be obtained according to the following calculation formula:

[0123]

[0124] Wherein, t represents the remaining water filling time, v represents the real-time water filling flow, t0 represents the starting timing time, t1 represents the current time, Q0 represents the boiler starting system water volume.

[0125] For example, when the boiler water filling process is the superheater water pressure test water filling process, the remaining water filling time can be obtained according to the following calculation formula:

[0126]

[0127] Wherein, t represents the remaining water filling time, v represents the real-time water filling flow, t0 represents the starting timing time, t1 represents the current time, Q g represents the superheater system water volume.

[0128] For example, when the boiler water filling process is the reheater water pressure test water filling process, the remaining water filling time can be obtained according to the following calculation formula:

[0129]

[0130] Wherein, t represents the remaining water filling time, v represents the real-time water filling flow, t0 represents the starting timing time, t1 represents the current time, Q z represents the reheater system water volume.

[0131] In a possible manner, when the boiler water filling process is the boiler starting water filling process, the economizer outlet pressure and the water tank liquid level value are determined; when the economizer outlet pressure is greater than the preset pressure, the alarm information for indicating that the water filling is about to be completed is output; when the water tank liquid level value is greater than the preset liquid level value, the alarm information for indicating that the water filling is completed is output.

[0132] For example, the economizer outlet preset pressure and the water tank preset liquid level value can be preset according to actual conditions, and the embodiments of the present disclosure are not limited thereto.

[0133] In a possible manner, when the boiler water filling process is the superheater water pressure test water filling process or the reheater water pressure test water filling process, if the remaining water filling time is less than the preset time, the alarm information for indicating that the water filling is about to be completed is output; if the remaining water filling time is equal to zero, the alarm information for indicating that the water filling is completed is output.

[0134] For example, the preset time can be preset according to actual conditions, and the embodiments of the present disclosure are not limited thereto.

[0135] In the above manner, the subsequent manual operation can be prepared in advance to help the operator, and the operation delay can be avoided to cause the unsafe events such as water running and excessive water filling.

[0136] The following refers to Figure 2 , Figure 3 andFigure 4 The boiler water feeding process display method provided by the present disclosure is described.

[0137] Referring to Figure 2 When the boiler water feeding process is a boiler start-up water feeding process, the boiler water feeding process display method comprises the following steps:

[0138] Step S201, receiving a boiler water feeding instruction.

[0139] Step S202, determining whether the boiler start-up water feeding system is in a conducting state according to a preset judgment condition, if yes, entering step S203, otherwise, entering step S201.

[0140] Step S203, determining the steam pump rotating speed.

[0141] Step S204, turning on the indicator light corresponding to the water feeding mode of the steam pump rotating speed and starting the timing.

[0142] Step S205, determining and displaying the real-time water feeding flow.

[0143] Step S206, determining and displaying the current total water feeding amount.

[0144] Step S207, determining and displaying the remaining water feeding time.

[0145] Step S208, when the economizer outlet pressure is greater than a preset pressure, outputting an alarm information representing that the water feeding is about to be completed.

[0146] Step S209, when the water tank liquid level value is greater than a preset liquid level value, outputting an alarm information representing that the water feeding is completed.

[0147] Step S210, resetting all data.

[0148] Referring to Figure 3 When the boiler water feeding process is a superheater water pressure test water feeding process, the boiler water feeding process display method comprises the following steps:

[0149] Step S301, receiving a boiler water feeding instruction.

[0150] Step S302, determining whether the superheater water pressure test water feeding system is in a conducting state according to a preset judgment condition, if yes, entering step S303, otherwise, entering step S301.

[0151] Step S303, turning on the indicator light corresponding to the superheater water pressure test water feeding and starting the timing.

[0152] Step S304, determining and displaying the real-time water feeding flow.

[0153] Step S305, determining and displaying the current total water feeding amount.

[0154] Step S306, determine the remaining water time and display.

[0155] Step S307, when the remaining water time is less than the preset time, output alarm information representing that the water is about to be completed.

[0156] Step S308, when the remaining water time is equal to zero, output alarm information representing that the water is completed.

[0157] Step S309, reset all data.

[0158] Referring to Figure 4 When the boiler water process is a reheater hydrostatic test water process, the boiler water process display method comprises the following steps:

[0159] Step S401, receive the boiler water instruction.

[0160] Step S402, determine whether the reheater hydrostatic test water system is in the on state by the preset judgment condition, if yes, go to step S403, otherwise, go to step S401.

[0161] Step S403, the superheater hydrostatic test start water instruction light is on, and the timing is started.

[0162] Step S404, determine the real-time water flow and display.

[0163] Step S405, determine the current total water amount and display.

[0164] Step S406, determine the remaining water time and display.

[0165] Step S407, when the remaining water time is less than the preset time, output alarm information representing that the water is about to be completed.

[0166] Step S408, when the remaining water time is equal to zero, output alarm information representing that the water is completed.

[0167] Step S409, reset all data.

[0168] The specific implementation process of each step has been described above, and will not be repeated here.

[0169] Through the above-mentioned manner, the real-time display of the boiler start-up and the superheater and reheater hydrostatic test water process can be realized, which helps the operation personnel to monitor the boiler water progress in real time, and can avoid the overflow and water running phenomenon in the water process.

[0170] Based on the same inventive concept, the embodiment of the present disclosure further provides a boiler water charging process display device. The device can be part or all of an electronic device in the form of software, hardware or a combination of both. Referring to Figure 5 The boiler water charging process display device 500 includes:

[0171] A determination module 501 is configured to determine a real-time water charging flow rate in a boiler water charging process and a water volume of a target system in the boiler, the target system being one of a boiler start-up system, a superheater system and a reheater system.

[0172] A first calculation module 502 is configured to perform integral calculation on the real-time water charging flow rate to obtain a current total water charging amount.

[0173] A second calculation module 503 is configured to subtract the current total water charging amount from the water volume and divide the result by the real-time water charging flow rate to obtain a remaining water charging time.

[0174] A display module 504 is configured to display the real-time water charging flow rate, the current total water charging amount and the remaining water charging time.

[0175] Optionally, the determination module 501 is configured to determine a steam pump rotating speed when the boiler water charging process is a boiler start-up water charging process; determine a steam pump recirculation flow rate and an average value of a steam-driven feed water pump flow rate at a first preset flow rate measuring point and a second preset flow rate measuring point of the steam-driven feed water pump when the steam pump rotating speed is greater than or equal to a first preset rotating speed; subtract the steam pump recirculation flow rate from the average value of the steam-driven feed water pump flow rate to obtain the real-time water charging flow rate in the boiler water charging process; determine an average value of a feed water pipeline flow rate at a third preset flow rate measuring point, a fourth preset flow rate measuring point and a fifth preset flow rate measuring point of the feed water pipeline when the steam pump rotating speed is less than the first preset rotating speed and greater than or equal to a second preset rotating speed; and determine the average value of the feed water pipeline flow rate as the real-time water charging flow rate in the boiler water charging process; and determine the average value of the steam-driven feed water pump flow rate as the real-time water charging flow rate in the boiler water charging process when the steam pump rotating speed is less than the second preset rotating speed.

[0176] Optionally, the determination module 501 is further configured to:

[0177] When the boiler water charging process is a superheater water pressure test water charging process, determine an electric recirculation flow rate and an average value of an electric-driven feed water pump flow rate at a first preset flow rate measuring point and a second preset flow rate measuring point of the electric-driven feed water pump; and subtract the electric recirculation flow rate from the average value of the electric-driven feed water pump flow rate to obtain the real-time water charging flow rate in the boiler water charging process.

[0178] When the boiler water feeding process is a reheater water pressure test water feeding process, the desuperheating water flow rates of the third preset flow rate measuring point and the fourth preset flow rate measuring point are obtained, if the desuperheating water flow rates of the third preset flow rate measuring point and the fourth preset flow rate measuring point are obtained, the average value of the desuperheating water flow rates of the third preset flow rate measuring point and the fourth preset flow rate measuring point is calculated, and the average value of the desuperheating water flow rates is determined as the real-time water feeding flow rate in the boiler water feeding process; if the desuperheating water flow rate of one of the third preset flow rate measuring point and the fourth preset flow rate measuring point is obtained, the obtained desuperheating water flow rate is determined as the real-time water feeding flow rate in the boiler water feeding process.

[0179] Optionally, the boiler water feeding process display device 500 further comprises a judgment module, which is configured to:

[0180] Before determining the real-time water feeding flow rate in the boiler water feeding process, it is determined whether the boiler satisfies at least two judgment conditions, including whether the front pump of the steam pump is in a starting state, whether the front pump of the electric feed water pump is in a starting state, whether the outlet electric door of the steam pump is opened, whether the front electric door of the feed water bypass is opened, whether the rear electric door of the feed water bypass is opened, whether the electric feed water pump is in a starting state, whether the average value of the flow rates of the first preset flow rate measuring point and the second preset flow rate measuring point of the electric feed water pump is greater than a preset threshold value, and whether the reheater desuperheating water flow rate is greater than a preset flow rate threshold value; and the real-time water feeding flow rate in the boiler water feeding process is determined, including: when the boiler satisfies the at least two judgment conditions, the real-time water feeding flow rate in the boiler water feeding process is determined.

[0181] Optionally, the boiler water feeding process display device 500 further comprises a steam pump rotating speed determination module, which is configured to:

[0182] Before determining the real-time water feeding flow rate in the boiler water feeding process, the rotating speed of the steam pump is determined; according to the rotating speed of the steam pump, the water feeding mode is determined; and according to the water feeding mode, the corresponding water feeding mode indicating lamp is controlled to be turned on.

[0183] Optionally, the boiler water feeding process display device 500 further comprises a first alarm module, which is configured to:

[0184] When the boiler water feeding process is a boiler starting water feeding process, the economizer outlet pressure and the water tank liquid level value are determined; when the economizer outlet pressure is greater than a preset pressure, alarm information indicating that the water feeding is about to be completed is output; and when the water tank liquid level value is greater than a preset liquid level value, alarm information indicating that the water feeding is completed is output.

[0185] Optionally, the boiler water feeding process display device 500 further comprises a second alarm module, which is configured to:

[0186] When the boiler water charging process is a superheater water pressure test water charging process or a reheater water pressure test water charging process, if the remaining water charging time is less than the preset time, alarm information for indicating that the water charging is about to be completed is output; if the remaining water charging time is equal to zero, alarm information for indicating that the water charging is completed is output.

[0187] Through the above device, real-time display of the boiler start-up and the superheater and reheater water pressure test water charging process can be realized, and the operation personnel can help to monitor the boiler water charging progress in real time, so that the overflow and water running phenomenon in the water charging process can be avoided.

[0188] As to the device in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the method, and will not be described in detail here.

[0189] Based on the same inventive concept, the embodiments of the present disclosure also provide an electronic device, comprising:

[0190] a memory having a computer program stored thereon;

[0191] a processor configured to execute the computer program in the memory to implement the steps of the method of any one of the first aspect.

[0192] In a possible manner, a block diagram of the electronic device can be as shown in Figure 6 Referring to Figure 6 The electronic device 600 can include a processor 601 and a memory 602. The electronic device 600 can also include one or more of a multimedia component 603, an input / output (I / O) interface 604, and a communication component 605.

[0193] The processor 601 is configured to control overall operations of the electronic device 600 to complete all or part of the steps of the above-described boiler water charging process display method. The memory 602 is configured to store various types of data to support operations of the electronic device 600, which can include, for example, instructions for operating any application or method on the electronic device 600, and application-related data, such as the first preset speed and the second preset speed of the steam pump, and the like.

[0194] The memory 602 can be implemented by any type of volatile or nonvolatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic or optical disk.

[0195] The multimedia component 603 can include a screen and audio components. The screen can be, for example, a touch screen, and the audio components can be for outputting and / or inputting audio signals. For example, the audio components can include a microphone for receiving external audio signals. The received audio signals can be further stored in the memory 602 or transmitted through the communication component 605. The audio components also include at least one speaker for outputting audio signals. The I / O interface 604 provides an interface between the processor 601 and other interface modules, which can be a keyboard, a mouse, a button, and the like. The buttons can be virtual buttons or physical buttons. The communication component 605 is used for the electronic device 600 to communicate with other devices.

[0196] In an exemplary embodiment, the electronic device 600 can be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements for performing the above-described boiler water filling process display method.

[0197] In addition, the computer readable storage medium provided above can be the memory 602 provided above, which includes program instructions executable by the processor 601 of the electronic device 600 to complete the boiler water feeding process display method.

[0198] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0199] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0200] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A method of displaying a boiler water filling process, characterized by, The method comprises: determining a real-time water filling flow rate in a boiler water filling process and a water volume of a target system in the boiler, the target system being one of a boiler start-up system, a superheater system and a reheater system; integrally calculating the real-time water filling flow rate to obtain a current total water filling amount; dividing the water volume minus the current total water filling amount by the real-time water filling flow rate to obtain a remaining water filling time; displaying the real-time water filling flow rate, the current total water filling amount and the remaining water filling time; The method further comprises: before determining the real-time water filling flow rate in the boiler water filling process, judging whether the boiler satisfies at least two judgment conditions, whether a steam pump pre-pump is in a start-up state, whether an electric feedwater pump pre-pump is in a start-up state, whether a steam pump outlet electric door is open, whether a feedwater bypass front electric door is open, whether a feedwater bypass rear electric door is open, whether the electric feedwater pump is in a start-up state, whether an average value of flow rates of first and second preset flow rate measuring points of the electric feedwater pump is greater than a preset threshold value, and whether a reheater desuperheating water flow rate is greater than a preset flow rate threshold value; The determination of the real-time water filling flow rate in the boiler water filling process comprises: when the boiler satisfies at least two of the judgment conditions, determining the real-time water filling flow rate in the boiler water filling process.

2. The method of claim 1, wherein, The determination of the real-time water filling flow rate in the boiler water filling process comprises: when the boiler water filling process is a boiler start-up water filling process, determining a steam pump rotating speed; when the steam pump rotating speed is greater than or equal to a first preset rotating speed, determining a steam pump recirculation flow rate and an average value of steam-driven feedwater pump flow rates at first and second preset flow rate measuring points of the steam-driven feedwater pump, and subtracting the steam pump recirculation flow rate from the average value of the steam-driven feedwater pump flow rates to obtain the real-time water filling flow rate in the boiler water filling process; when the steam pump rotating speed is less than the first preset rotating speed and greater than or equal to a second preset rotating speed, determining an average value of feedwater pipeline flow rates at third, fourth and fifth preset flow rate measuring points of the feedwater pipeline, and determining the average value of the feedwater pipeline flow rates as the real-time water filling flow rate in the boiler water filling process; when the steam pump rotating speed is less than the second preset rotating speed, determining the average value of the steam-driven feedwater pump flow rates as the real-time water filling flow rate in the boiler water filling process.

3. The method of claim 1, wherein, The determination of the real-time water filling flow rate in the boiler water filling process comprises: when the boiler water filling process is a superheater hydrostatic test water filling process, determining an electric recirculation flow rate and an average value of electric feedwater pump flow rates at first and second preset flow rate measuring points of the electric feedwater pump, and subtracting the electric recirculation flow rate from the average value of the electric feedwater pump flow rates to obtain the real-time water filling flow rate in the boiler water filling process; When the boiler water feeding process is a reheater hydrotest water feeding process, the desuperheating water flow rates of a third preset flow measuring point and a fourth preset flow measuring point are obtained, and if the desuperheating water flow rates of the third preset flow measuring point and the fourth preset flow measuring point are obtained, the average of the desuperheating water flow rates of the third preset flow measuring point and the fourth preset flow measuring point is calculated, and the average of the desuperheating water flow rates is determined as the real-time water feeding flow rate in the boiler water feeding process; if the desuperheating water flow rate of one of the third preset flow measuring point and the fourth preset flow measuring point is obtained, the obtained desuperheating water flow rate is determined as the real-time water feeding flow rate in the boiler water feeding process.

4. The method according to any of claims 1 to 3, characterized in that, The method further comprises: Before determining the real-time water feeding flow rate in the boiler water feeding process, determining a steam pump rotating speed; According to the steam pump rotating speed, determining a water feeding mode; According to the water feeding mode, controlling a corresponding water feeding mode indicating lamp to light up.

5. The method according to any of claims 1 to 3, characterized in that The method further comprises: When the boiler water feeding process is a boiler start-up water feeding process, determining a coal economizer outlet pressure and a water storage tank liquid level value; When the coal economizer outlet pressure is greater than a preset pressure, outputting alarm information for indicating that the water feeding is about to be completed; When the water storage tank liquid level value is greater than a preset liquid level value, outputting alarm information for indicating that the water feeding is completed.

6. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: When the boiler water feeding process is a superheater hydrotest water feeding process or a reheater hydrotest water feeding process, if the remaining water feeding time is less than a preset time, outputting alarm information for indicating that the water feeding is about to be completed; If the remaining water feeding time is equal to zero, outputting alarm information for indicating that the water feeding is completed.

7. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to realize the steps of the method in any one of claims 1-6.

8. An electronic device, comprising: Comprise: a memory having a computer program stored thereon; a processor configured to execute the computer program in the memory to realize the steps of the method in any one of claims 1-6.

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