Liquid level control method, device, electronic device, storage medium and product

Abstract

The present disclosure proposes a liquid level control method, device, electronic device, storage medium and product, the method comprising: obtaining the water seal liquid level of the slag machine; in response to the first slag machine water seal liquid level being lower than the first preset liquid level, using the PID algorithm to determine the first opening corresponding to the slag machine water replenishment regulating valve, the first opening being used to indicate the size of the opening of the slag machine water replenishment regulating valve; controlling the slag machine water replenishment regulating valve to the first opening to replenish water to the slag machine water seal body. By obtaining the water seal liquid level of the slag machine; in response to the first slag machine water seal liquid level being lower than the first preset liquid level, using the PID algorithm to determine the first opening corresponding to the slag machine water replenishment regulating valve; controlling the slag machine water replenishment regulating valve to the first opening to replenish water to the slag machine water seal body, the precise control of the slag machine water seal liquid level can be ensured, thereby avoiding the problem of overflow due to excessively high liquid level and damage to the water seal due to excessively low liquid level.

Description

Technical Field

[0001] The present disclosure relates to the field of liquid level control technology, and in particular to a liquid level control method, device, electronic equipment, storage medium and product. Background Art

[0002] The slag remover is a slag removal device for the boiler in a thermal power plant. The horizontal section of the slag remover is filled with cooling water, which is used to cool and remove the slag produced by the boiler combustion. It is also used to form a water seal at the bottom of the boiler to prevent external cold air from entering the furnace and affecting the boiler combustion. The cooling water in the slag remover is taken away as the slag is removed. The low liquid level will damage the water seal at the bottom of the boiler. Therefore, the water seal liquid level of the slag remover needs to be accurately controlled.

[0003] In the relevant slag machine water seal liquid level control scheme, a slag machine water supply gate is set, and water is supplied by controlling the switch of the water supply gate based on the temperature of the slag machine water tank through a temperature control device. When the water tank temperature reaches the set high temperature value or low temperature value, the temperature control device sends two passive contacts to the slag machine water supply gate to control the opening and closing of the water supply gate, and then controls the slag machine water seal liquid level by opening and closing the water supply gate. However, when controlling the switch of the slag machine water supply gate by water temperature, the precise control of the liquid level cannot be guaranteed, which may easily cause the slag machine liquid level to overflow due to excessively high liquid level and damage the water seal due to excessively low liquid level. Summary of the invention

[0004] The present invention provides a liquid level control method, device, electronic device, storage medium and product to solve the problem in the related art that when the water supply door of the slag scoop machine is switched on and off by controlling the water temperature, the liquid level cannot be accurately controlled, which easily causes overflow of the slag scoop machine due to excessively high liquid level and damage to the water seal due to excessively low liquid level.

[0005] A first aspect of the present disclosure provides a liquid level control method, the method comprising:

[0006] Obtain the water seal level of the first slag remover;

[0007] In response to the first slag scoop machine water seal liquid level being lower than the first preset liquid level, a PID algorithm is used to determine a first opening corresponding to the slag scoop machine water supply regulating valve, wherein the first opening is used to indicate the opening size of the slag scoop machine water supply regulating valve;

[0008] The water supply valve of the slag scoop machine is controlled to the first opening to supply water to the water seal body of the slag scoop machine.

[0009] In one embodiment, after controlling the water supply valve of the slag scoop machine to the first opening to supply water to the water seal body of the slag scoop machine, the method provided by the present disclosure further includes:

[0010] Get the liquid level of the slag water pool;

[0011] In response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag scooping machine water seal body through the slag water pool water replenishment pipeline.

[0012] In one embodiment, water is replenished to the water seal body of the slag dredger through a slag water pool replenishment pipeline, including:

[0013] If the water seal liquid level of the first slag scooping machine is lower than the first preset liquid level, a slag water pump is used to replenish water to the water seal body of the slag scooping machine through a slag water tank replenishing pipe.

[0014] In one embodiment, in response to the first slag scooping machine water seal liquid level being lower than the first preset liquid level, using the PID algorithm to determine the first opening corresponding to the slag scooping machine water replenishment regulating valve includes:

[0015] In response to the first slag scoop machine water seal liquid level being lower than a first preset liquid level, determining a first liquid level difference between the first preset liquid level and the first slag scoop machine water seal liquid level;

[0016] Based on the first liquid level difference, a first control signal corresponding to the first liquid level difference is determined by using a PID algorithm, wherein the first control signal is used to control the opening of a water supply regulating valve of a slag scooping machine;

[0017] The opening corresponding to the first control signal is determined to be the first opening corresponding to the water replenishment regulating valve of the slag remover.

[0018] In one embodiment, based on the first liquid level difference, determining a first control signal corresponding to the first liquid level difference using a PID algorithm includes:

[0019] Acquire initial values ​​of PID control parameters, wherein the PID control parameters include a proportional adjustment coefficient, an integral adjustment coefficient, and a differential adjustment coefficient;

[0020] Based on the first liquid level difference and the initial value of the PID control parameter, a first control signal corresponding to the first liquid level difference is determined using a PID algorithm.

[0021] In one embodiment, after controlling the water supply valve of the slag scoop machine to the first opening to supply water to the water seal body of the slag scoop machine, the method provided by the present disclosure further includes:

[0022] Obtain the water seal level of the second slag remover;

[0023] Determining a second liquid level difference based on the water seal liquid level of the second slag remover and the first preset liquid level;

[0024] If the second liquid level difference is greater than the first preset value, the PID algorithm is stopped to determine the first opening corresponding to the water supply regulating valve of the slag remover.

[0025] A second aspect of the present disclosure provides a liquid level control device, the device comprising:

[0026] An acquisition unit, used for acquiring the water seal liquid level of the first slag remover;

[0027] A determination unit, configured to determine a first opening corresponding to a water supply regulating valve of the slag scoop machine using a PID algorithm in response to a water seal level of the first slag scoop machine being lower than a first preset level, wherein the first opening is used to indicate the opening size of the water supply regulating valve of the slag scoop machine;

[0028] The control unit is used to control the water supply regulating valve of the slag scoop machine to the first opening so as to supply water to the water seal body of the slag scoop machine.

[0029] A third aspect of the present disclosure provides an electronic device, including:

[0030] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the embodiment of the first aspect of the present disclosure.

[0031] The fourth aspect embodiment of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the method described in the first aspect embodiment of the present disclosure.

[0032] The fifth aspect embodiment of the present disclosure provides a computer program product, including a computer program, which implements the method described in the first aspect embodiment of the present disclosure when executed by a processor.

[0033] In summary, the present disclosure proposes a liquid level control method, which includes: obtaining the water seal liquid level of a slag scoop machine; in response to the first slag scoop machine water seal liquid level being lower than a first preset liquid level, using a PID algorithm to determine a first opening corresponding to a slag scoop machine water supply regulating valve, the first opening being used to indicate the size of the opening of the slag scoop machine water supply regulating valve; controlling the slag scoop machine water supply regulating valve to the first opening to supply water to the slag scoop machine water seal body.

[0034] According to the scheme provided in the present disclosure, by obtaining the liquid level of the slag scraper water seal; in response to the first slag scraper water seal liquid level being lower than the first preset liquid level, using the PID algorithm to determine the first opening corresponding to the slag scraper water replenishment regulating valve; controlling the slag scraper water replenishment regulating valve to the first opening to replenish water to the slag scraper water seal body, precise control of the liquid level can be ensured, thereby avoiding the problem of overflow due to excessively high liquid level and damage to the water seal due to excessively low liquid level.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0037] Figure 1 A schematic diagram of an application scenario of the liquid level control method provided in an embodiment of the present disclosure;

[0038] Figure 2 A schematic diagram of a flow chart of a liquid level control method provided in an embodiment of the present disclosure;

[0039] Figure 3 A schematic flow chart of a method for determining a first opening corresponding to a water supply regulating valve of a slag scooping machine provided in an embodiment of the present disclosure;

[0040] Figure 4 A flow chart of a liquid level control method provided for an application example of the present disclosure;

[0041] Figure 5 A schematic diagram of the structure of a liquid level control device provided in an embodiment of the present disclosure;

[0042] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0044] The slag remover is a slag removal device for the boiler in a thermal power plant. The horizontal section of the slag remover is filled with cooling water, which is used to cool and remove the slag produced by the boiler combustion. It is also used to form a water seal at the bottom of the boiler to prevent external cold air from entering the furnace and affecting the boiler combustion. The cooling water in the slag remover is taken away as the slag is removed. The low liquid level will damage the water seal at the bottom of the boiler. Therefore, the water seal liquid level of the slag remover needs to be accurately controlled.

[0045] In the relevant slag machine water seal liquid level control scheme, a slag machine water supply gate is set, and water is supplied by controlling the switch of the water supply gate based on the temperature of the slag machine water tank through a temperature control device. When the water tank temperature reaches the set high temperature value or low temperature value, the temperature control device sends two passive contacts to the slag machine water supply gate to control the opening and closing of the water supply gate, and then controls the slag machine water seal liquid level by opening and closing the water supply gate. However, when controlling the switch of the slag machine water supply gate by water temperature, the precise control of the liquid level cannot be guaranteed, which may easily cause the slag machine liquid level to overflow due to excessively high liquid level and damage the water seal due to excessively low liquid level.

[0046] In addition, the control circuit for replenishing water by controlling the water replenishment door switch based on the temperature of the slag machine water tank through temperature control equipment (such as temperature switch) is relatively complicated, which is not conducive to checking the fault point.

[0047] In order to solve the defects in the related technology, the present invention obtains the water seal liquid level of the slag scraper; in response to the first slag scraper water seal liquid level being lower than the first preset liquid level, a proportional-integral-derivative (PID) algorithm is used to determine the first opening corresponding to the slag scraper water supply regulating valve; the slag scraper water supply regulating valve is controlled to the first opening to supply water to the slag scraper water seal body, thereby ensuring precise control of the liquid level, thereby avoiding overflow due to excessively high liquid level of the slag scraper and damage to the water seal due to excessively low liquid level.

[0048] A liquid level control method provided in an embodiment of the present disclosure can be applied to the liquid level control of a slag remover in a power plant. The executor of the method can be a distributed control system (DCS), a programmable logic controller, an industrial computer, an embedded system, etc.

[0049] like Figure 1 As shown, Figure 1 Schematic diagram of application scenario of the liquid level control method provided in the embodiment of the present disclosure, wherein 1 is a slag machine water supply regulating valve, which is used to control the flow rate of supply water; 2 is a slag machine water seal level gauge, which is used to measure the water seal liquid level of the slag machine water seal body; 3 is a slag water pump, which is used to transport water in the slag water pool to the slag machine; 4 is a slag water pool level gauge, which is used to measure the current liquid level of the slag water pool; 5 is the slag machine water seal body, 6 is the slag machine chain, 7 is the slag water pool, which is used to store water discharged from the slag machine water seal body; 8 is the slag machine water supply pipeline, and 9 is the slag water pool water supply pipeline.

[0050] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] like Figure 2 As shown, Figure 2The flow chart of the liquid level control method provided in the embodiment of the present disclosure is as follows. The liquid level control method provided in the embodiment of the present disclosure comprises the following steps:

[0052] Step 201, obtaining the water seal level of the first slag remover;

[0053] In one embodiment, a level gauge may be used to obtain the water seal level of the first slag remover. The present application does not limit the type of the level gauge used, such as a float level gauge, a pressure level gauge, and the like.

[0054] In one embodiment, the first slag scoop water seal level refers to the water seal level of the current slag scoop.

[0055] In one embodiment, after the water seal level of the first slag remover is obtained, the measurement result can be transmitted to the DCS for display.

[0056] Step 202, in response to the first slag scoop machine water seal liquid level being lower than a first preset liquid level, using a PID algorithm to determine a first opening corresponding to a slag scoop machine water supply regulating valve, wherein the first opening is used to indicate the opening size of the slag scoop machine water supply regulating valve;

[0057] In one embodiment, the first preset liquid level is used to indicate a low liquid level of the slag remover.

[0058] In one embodiment, the value of the first preset liquid level can be obtained from relevant slag scoop machine liquid level control literature, or can be obtained from multiple slag scoop machine liquid level control tests.

[0059] In one embodiment, when the liquid level of the water seal of the first slag scoop machine is lower than the first preset liquid level, it indicates that the water seal body of the slag scoop machine needs to be replenished with water.

[0060] In one embodiment, the liquid level of the water seal of the first slag scoop is different, and the corresponding flow rate of water replenishment required by the slag scoop is also different. Therefore, when the liquid level of the water seal of the first slag scoop is different, the first opening corresponding to the slag scoop water replenishment regulating valve should also be different.

[0061] In one embodiment, in response to the first slag scoop machine water seal liquid level being lower than the first preset liquid level, a PID algorithm is used to determine the first opening corresponding to the slag scoop machine water supply regulating valve, and the slag scoop machine water supply flow rate can be controlled according to the opening of the slag scoop machine water supply regulating valve.

[0062] Step 203, controlling the water supply valve of the slag scoop machine to the first opening to supply water to the water seal body of the slag scoop machine.

[0063] In one embodiment, accurate control of the water seal liquid level in the slag scoop machine can be achieved by controlling the water supply regulating valve of the slag scoop machine to the first opening to supply water to the water seal body of the slag scoop machine.

[0064] In one embodiment, after controlling the water supply regulating valve of the slag scooping machine to the first opening to supply water to the water seal body of the slag scooping machine, the liquid level control method further includes:

[0065] Get the liquid level of the slag water pool;

[0066] In one embodiment, excessively high liquid level in the slag water pool may cause overflow, equipment damage, environmental pollution and other problems. The slag water pool control may be incorporated into the slag scoop machine liquid level control to achieve water replenishment to the slag scoop machine water seal body.

[0067] In one embodiment, the liquid level of the slag water pool can be obtained by using a slag water pool level meter.

[0068] In one embodiment, the slag water pool level gauge may be the same as the slag scoop machine water seal level gauge, or may be a different level gauge from the slag scoop machine water seal level gauge, which is not limited in the present application.

[0069] In one embodiment, after the liquid level of the slag water pool is obtained, the liquid level of the slag water pool can be transmitted to the DCS for display.

[0070] In response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag scooping machine water seal body through the slag water pool water replenishment pipeline.

[0071] In one embodiment, the second preset liquid level refers to a high threshold value of the slag water pool, which is used to measure the critical liquid level of the slag water pool at which the liquid level is high and there is a risk of overflow.

[0072] In one embodiment, the value of the second preset liquid level can be obtained from relevant slag water pool overflow literature, or can be obtained from multiple slag water pool overflow tests.

[0073] In one embodiment, when the liquid level of the slag water pool is higher than the second preset liquid level, it indicates that the liquid level of the slag water pool is too high and there is a risk of overflow. In response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag scooper water seal body through the slag water pool replenishment pipe. At the same time, the liquid level of the slag water pool can be lowered while replenishing water to the slag scooper water seal body, thereby reducing the risk of slag water pool overflow.

[0074] In one embodiment, water is replenished to the water seal body of the slag dredger through a slag water pool replenishment pipeline, including:

[0075] If the water seal liquid level of the first slag scooping machine is lower than the first preset liquid level, a slag water pump is used to replenish water to the water seal body of the slag scooping machine through a slag water tank replenishing pipe.

[0076] In one embodiment, when the liquid level of the water seal of the first slag scoop machine is lower than the first preset liquid level, it indicates that the water seal body of the slag scoop machine needs to be replenished with water.

[0077] In one embodiment, when the liquid level of the first slag scoop machine water seal in the slag scoop machine water seal body is lower than the first preset liquid level and the liquid level in the slag water pool is higher than the second preset liquid level, the slag water pump is used to replenish water to the slag scoop machine water seal body through the slag water pool water replenishment pipeline, that is, the slag water pump is started to replenish water to the slag scoop machine water seal body only when the slag scoop machine needs to be replenished with water, which can effectively prevent the slag scoop machine from overflowing due to excessive liquid level, and the slag water pump can be started and stopped by DCS.

[0078] In one embodiment, when the liquid level of the slag water pool is lower than the third preset liquid level, the slag water pump is used to stop replenishing water to the slag scooper water seal body, wherein the third preset liquid level refers to the low threshold value of the slag water pool. If the liquid level of the slag water pool is lower than the low threshold value of the slag water pool, it indicates that the amount of water in the slag water pool is insufficient.

[0079] In one embodiment, if Figure 3 As shown, in response to the first slag scooping machine water seal liquid level being lower than the first preset liquid level, the PID algorithm is used to determine the first opening corresponding to the slag scooping machine water replenishment regulating valve, including:

[0080] Step 301, in response to the first slag scooping machine water seal liquid level being lower than a first preset liquid level, determining a first liquid level difference between the first preset liquid level and the first slag scooping machine water seal liquid level;

[0081] In one embodiment, the magnitude of the first liquid level difference indicates the amount of water replenishment required. Specifically, a larger first liquid level difference indicates a more amount of water replenishment required, and a smaller first liquid level difference indicates a less amount of water replenishment required.

[0082] Step 302: Based on the first liquid level difference, a first control signal corresponding to the first liquid level difference is determined by using a PID algorithm, wherein the first control signal is used to control the opening of a water supply regulating valve of a slag extractor;

[0083] In one embodiment, the magnitude of the first liquid level difference is different, and the first control signal corresponding to the first liquid level difference is also different, that is, the opening of the water supply regulating valve of the slag scoop machine is also different.

[0084] In one embodiment, the first liquid level difference is used as a controlled variable of the PID algorithm, and a first control signal corresponding to the first liquid level difference is calculated according to a calculation rule of the PID algorithm.

[0085] Step 303, determining that the opening corresponding to the first control signal is the first opening corresponding to the water supply regulating valve of the slag remover.

[0086] In one embodiment, by determining the opening corresponding to the first control signal as the first opening corresponding to the water replenishment regulating valve of the slag extractor, accurate control of the water replenishment regulating valve of the slag extractor can be ensured.

[0087] In one embodiment, after obtaining the first opening corresponding to the water supply regulating valve of the slag scoop machine, the DCS can be used to control the opening of the water supply regulating valve of the slag scoop machine to the first opening.

[0088] In one embodiment, based on the first liquid level difference, determining a first control signal corresponding to the first liquid level difference using a PID algorithm includes:

[0089] Acquire initial values ​​of PID control parameters, wherein the PID control parameters include a proportional adjustment coefficient, an integral adjustment coefficient, and a differential adjustment coefficient;

[0090] In one embodiment, the selection of PID control parameters will affect the response speed, steady-state error and stability of the slag machine liquid level control. Specifically, the proportional adjustment coefficient will affect the response speed of the slag machine liquid level control, the integral adjustment coefficient is used to eliminate the steady-state error, and the differential adjustment coefficient is used to predict future error changes, which can improve the stability of the slag machine liquid level control.

[0091] In one embodiment, the initial values ​​of the PID control parameters may be obtained from relevant PID control literature, or by using a trial and error method.

[0092] Based on the first liquid level difference and the initial value of the PID control parameter, a first control signal corresponding to the first liquid level difference is determined using a PID algorithm.

[0093] In one embodiment, the first liquid level difference is used as the controlled variable of the PID algorithm, and the proportional adjustment term, the integral adjustment term and the differential adjustment term are calculated respectively, and the proportional adjustment term, the integral adjustment term and the differential adjustment term are summed to obtain a first control signal corresponding to the first liquid level difference.

[0094] In one embodiment, when the first liquid level difference is zero (ie, the water seal liquid level of the slag remover is the same as the first preset liquid level), the PID algorithm is no longer used to determine the first control signal corresponding to the first liquid level difference.

[0095] In one embodiment, after controlling the water supply valve of the slag scooping machine to the first opening to supply water to the water seal body of the slag scooping machine, the liquid level control method further includes:

[0096] Obtain the water seal level of the second slag remover;

[0097] In one embodiment, the second slag scoop machine water seal liquid level refers to the slag scoop machine water seal liquid level obtained in the process of replenishing water to the slag scoop machine water seal body.

[0098] In one embodiment, the method for obtaining the water seal liquid level of the second slag scoop machine is the same as the method for obtaining the water seal liquid level of the first slag scoop machine mentioned above, and will not be repeated here.

[0099] Determining a second liquid level difference based on the water seal liquid level of the second slag remover and the first preset liquid level;

[0100] In one embodiment, the first preset liquid level and the second slag scoop machine water seal liquid level are subtracted to obtain a second liquid level difference.

[0101] If the second liquid level difference is greater than the first preset value, the PID algorithm is stopped to determine the first opening corresponding to the water supply regulating valve of the slag remover.

[0102] In one embodiment, the first preset value is a preset value.

[0103] In one embodiment, when the second liquid level difference is greater than the first preset value, it indicates that the first preset liquid level and the second slag scoop machine water seal liquid level have a large deviation.

[0104] In one embodiment, by stopping the use of the PID algorithm to determine the first opening corresponding to the slag scoop machine water replenishment regulating valve when the second liquid level difference is greater than the first preset value, the problem of the slag scoop machine water seal liquid level control can be discovered in time to avoid overflow or dry burning of the slag scoop machine due to too high or too low liquid level.

[0105] In one embodiment, the actual control signal of the slag machine water supply regulating valve is obtained, and when the first control signal of the slag machine water supply regulating valve deviates greatly from the actual control signal, the PID algorithm is stopped to determine the first opening corresponding to the slag machine water supply regulating valve.

[0106] In one embodiment, when the water seal level of the slag scooper is damaged, the PID algorithm is stopped to determine the first opening corresponding to the water replenishment valve of the slag scooper, wherein the water seal level damage of the slag scooper may include a failure of the level meter, a measurement value exceeding a reasonable range, etc.

[0107] In summary, the solution provided by the present disclosure is:

[0108] Firstly, by obtaining the water seal liquid level of the slag scraper; in response to the first slag scraper water seal liquid level being lower than the first preset liquid level, the PID algorithm is used to determine the first opening corresponding to the slag scraper water supply regulating valve; the slag scraper water supply regulating valve is controlled to the first opening to supply water to the slag scraper water seal body, thereby ensuring precise control of the liquid level, thereby avoiding overflow due to excessively high liquid level and damage to the water seal due to excessively low liquid level.

[0109] Secondly, in response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag dredger water seal body through the slag water pool water replenishment pipe. At the same time, the liquid level of the slag water pool can be lowered while replenishing the slag dredger water seal body, thereby reducing the risk of slag water pool overflow.

[0110] Again, by stopping the use of the PID algorithm to determine the first opening corresponding to the slag scoop machine water supply regulating valve when the second liquid level difference is greater than the first preset value, the problem of the slag scoop machine water seal liquid level control can be discovered in time to avoid overflow or dry burning of the slag scoop machine due to excessively high or low liquid level.

[0111] The liquid level control method provided by the present disclosure is further described below with an application example:

[0112] like Figure 4 As shown, Figure 4 A flow chart of a liquid level control method provided for an application example of the present disclosure. The liquid level control method provided for an application example of the present disclosure comprises the following steps:

[0113] Step 401, obtaining the water seal level of the first slag remover;

[0114] Step 402, in response to the first slag scooping machine water seal liquid level being lower than a first preset liquid level, determining a first liquid level difference between the first preset liquid level and the first slag scooping machine water seal liquid level;

[0115] Step 403, obtaining initial values ​​of PID control parameters, wherein the PID control parameters include a proportional adjustment coefficient, an integral adjustment coefficient, and a differential adjustment coefficient;

[0116] Step 404, based on the first liquid level difference and the initial value of the PID control parameter, a first control signal corresponding to the first liquid level difference is determined by using a PID algorithm, wherein the first control signal is used to control the opening of a water supply regulating valve of a slag extractor;

[0117] Step 405, determining that the opening corresponding to the first control signal is a first opening corresponding to the water supply regulating valve of the slag extractor, wherein the first opening is used to indicate the opening size of the water supply regulating valve of the slag extractor;

[0118] Step 406, controlling the water supply valve of the slag scooping machine to the first opening to supply water to the water seal body of the slag scooping machine;

[0119] Step 407, obtaining the water seal level of the second slag remover;

[0120] Step 408, determining a second liquid level difference based on the water seal liquid level of the second slag remover and the first preset liquid level;

[0121] Step 409, if the second liquid level difference is greater than the first preset value, stop using the PID algorithm to determine the first opening corresponding to the water supply regulating valve of the slag extractor;

[0122] Step 410, obtaining the liquid level of the slag water pool;

[0123] Step 411, in response to the liquid level of the slag water pool being higher than the second preset liquid level, if the liquid level of the first slag scooper water seal is lower than the first preset liquid level, a slag water pump is used to replenish water to the slag scooper water seal body through the slag water pool water replenishment pipeline.

[0124] In order to implement the liquid level control method provided by the embodiment of the present disclosure, the embodiment of the present disclosure also provides a liquid level control device, such as Figure 5 shown. Figure 5 This is a schematic diagram of the structure of a liquid level control device provided in an embodiment of the present disclosure. The liquid level control device 500 includes:

[0125] An acquisition unit 501 is used to acquire the water seal level of the first slag remover;

[0126] A determination unit 502 is used to determine a first opening corresponding to a water supply regulating valve of the slag scoop machine using a PID algorithm in response to the water seal level of the first slag scoop machine being lower than a first preset level, wherein the first opening is used to indicate the opening size of the water supply regulating valve of the slag scoop machine;

[0127] The control unit 503 is used to control the water supply regulating valve of the slag scoop machine to the first opening to supply water to the water seal body of the slag scoop machine.

[0128] In one embodiment, the liquid level control device 500 further includes a slag water tank water replenishment unit, which is used to:

[0129] Get the liquid level of the slag water pool;

[0130] In response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag scooping machine water seal body through the slag water pool water replenishment pipeline.

[0131] In one embodiment, the slag water pool replenishment unit is also used for:

[0132] If the water seal liquid level of the first slag scooping machine is lower than the first preset liquid level, a slag water pump is used to replenish water to the water seal body of the slag scooping machine through a slag water tank replenishing pipe.

[0133] In one embodiment, the determining unit 502 is specifically configured to:

[0134] In response to the first slag scoop machine water seal liquid level being lower than a first preset liquid level, determining a first liquid level difference between the first preset liquid level and the first slag scoop machine water seal liquid level;

[0135] Based on the first liquid level difference, a first control signal corresponding to the first liquid level difference is determined by using a PID algorithm, wherein the first control signal is used to control the opening of a water supply regulating valve of a slag scooping machine;

[0136] The opening corresponding to the first control signal is determined to be the first opening corresponding to the water replenishment regulating valve of the slag remover.

[0137] In one embodiment, the determining unit 502 is specifically configured to:

[0138] Acquire initial values ​​of PID control parameters, wherein the PID control parameters include a proportional adjustment coefficient, an integral adjustment coefficient, and a differential adjustment coefficient;

[0139] Based on the first liquid level difference and the initial value of the PID control parameter, a first control signal corresponding to the first liquid level difference is determined using a PID algorithm.

[0140] In one embodiment, the liquid level control device 500 further includes a stop unit, which is used to:

[0141] Obtain the water seal level of the second slag remover;

[0142] Determining a second liquid level difference based on the water seal liquid level of the second slag remover and the first preset liquid level;

[0143] If the second liquid level difference is greater than the first preset value, the PID algorithm is stopped to determine the first opening corresponding to the water supply regulating valve of the slag remover.

[0144] It should be noted that: the liquid level control device provided in the above embodiment only uses the division of the above program modules as an example when performing liquid level control. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the liquid level control device is divided into different program modules to complete all or part of the processing described above. In addition, the liquid level control device provided in the above embodiment and the liquid level control method embodiment provided in the embodiment of the present disclosure belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0145] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure is shown in FIG. Figure 6 As shown, the electronic device 600 includes at least one processor 602; and a memory 601 communicatively connected to the at least one processor 602; wherein the memory 601 stores instructions executable by the at least one processor 602, and the instructions are executed by the at least one processor 602 to implement the steps of the liquid level control method described in the embodiment of the present disclosure.

[0146] Optionally, the electronic device may specifically be the liquid level control device of the embodiment of the present application, and the electronic device may implement the corresponding processes implemented by the liquid level control device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0147] It is understood that the electronic device also includes a communication interface 603. The various components in the electronic device are coupled together through a bus system 604. It is understood that the bus system 604 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 6 Various buses are labeled as bus system 604 .

[0148] It can be understood that the memory 601 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAMbus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 601 described in the embodiment of the present invention is intended to include but is not limited to these and any other suitable types of memories.

[0149] The method disclosed in the above embodiment of the present disclosure can be applied to the processor 602, or implemented by the processor 602. The processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 602 or the instruction in the form of software. The above processor 602 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 602 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 601, and the processor 602 reads the information in the memory 601 and completes the steps of the above method in combination with its hardware.

[0150] In an exemplary embodiment, the electronic device may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors, or other electronic components to execute the aforementioned method.

[0151] The embodiment of the present disclosure further provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to implement the steps of the liquid level control method described in the embodiment of the present disclosure when executed.

[0152] The embodiment of the present disclosure also provides a computer program product, including a computer program, which implements the steps of the liquid level control method provided in the embodiment of the present disclosure when executed by a processor.

[0153] Optionally, the computer-readable storage medium can be applied to the liquid level control device in the embodiments of the present application, and the computer instructions enable the computer to execute the corresponding processes implemented by the liquid level control device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0154] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0155] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0156] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0157] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, disks or optical disks.

[0158] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0159] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A liquid level control method, characterized in that: include: Obtain the water seal level of the first slag remover; In response to the first slag scoop machine water seal liquid level being lower than the first preset liquid level, a proportional integral differential (PID) algorithm is used to determine a first opening corresponding to the slag scoop machine water supply regulating valve, wherein the first opening is used to indicate the opening size of the slag scoop machine water supply regulating valve; The water supply valve of the slag scoop machine is controlled to the first opening to supply water to the water seal body of the slag scoop machine.

2. The method according to claim 1, characterized in that After controlling the water supply valve of the slag scooping machine to the first opening to supply water to the water seal body of the slag scooping machine, the method further comprises: Get the liquid level of the slag water pool; In response to the liquid level of the slag water pool being higher than the second preset liquid level, water is replenished to the slag scooping machine water seal body through the slag water pool water replenishment pipeline.

3. The method according to claim 2, characterized in that The method of replenishing water to the water seal body of the slag scooping machine through the slag water pool replenishing pipeline includes: If the water seal liquid level of the first slag scooping machine is lower than the first preset liquid level, a slag water pump is used to replenish water to the water seal body of the slag scooping machine through a slag water tank replenishing pipe.

4. The method according to claim 1, characterized in that: In response to the first slag scooping machine water seal liquid level being lower than the first preset liquid level, using the PID algorithm to determine the first opening corresponding to the slag scooping machine water replenishment regulating valve, comprising: In response to the first slag scoop machine water seal liquid level being lower than a first preset liquid level, determining a first liquid level difference between the first preset liquid level and the first slag scoop machine water seal liquid level; Based on the first liquid level difference, a first control signal corresponding to the first liquid level difference is determined by using a PID algorithm, wherein the first control signal is used to control the opening of a water supply regulating valve of a slag scooping machine; The opening corresponding to the first control signal is determined to be the first opening corresponding to the water replenishment regulating valve of the slag remover.

5. The method according to claim 4, characterized in that The method of determining a first control signal corresponding to the first liquid level difference by using a PID algorithm based on the first liquid level difference includes: Acquire initial values ​​of PID control parameters, wherein the PID control parameters include a proportional adjustment coefficient, an integral adjustment coefficient, and a differential adjustment coefficient; Based on the first liquid level difference and the initial value of the PID control parameter, a first control signal corresponding to the first liquid level difference is determined using a PID algorithm.

6. The method according to claim 1, characterized in that After controlling the water supply valve of the slag scooping machine to the first opening to supply water to the water seal body of the slag scooping machine, the method further comprises: Obtain the water seal level of the second slag remover; Determining a second liquid level difference based on the water seal liquid level of the second slag remover and the first preset liquid level; If the second liquid level difference is greater than the first preset value, the PID algorithm is stopped to determine the first opening corresponding to the water supply regulating valve of the slag remover.

7. A liquid level control device, characterized in that: include: An acquisition unit, used for acquiring the water seal liquid level of the first slag remover; A determination unit, configured to determine a first opening corresponding to a water supply regulating valve of the slag scoop machine using a PID algorithm in response to a water seal level of the first slag scoop machine being lower than a first preset level, wherein the first opening is used to indicate the opening size of the water supply regulating valve of the slag scoop machine; The control unit is used to control the water supply regulating valve of the slag scoop machine to the first opening so as to supply water to the water seal body of the slag scoop machine.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, wherein the computer program implements the method according to any one of claims 1 to 6 when executed by a processor.

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