Electrical control system for drilling platform soot blowing systems

Abstract

This invention relates to an electrical control system for a soot blowing system on a drilling platform, comprising an operation panel and a first control unit. The operation panel has ventilation valve operation knobs corresponding to the number of ventilation valves and discharge valve operation knobs corresponding to the number of discharge valves. Each ventilation valve operation knob controls its corresponding ventilation valve, and each discharge valve operation knob controls its corresponding discharge valve. The first control unit is connected to the operation panel and is used to collect operation information from each ventilation valve operation knob and each discharge valve operation knob. The first control unit is also connected to the discharge valves and ventilation valves and is used to control the corresponding ventilation valves and discharge valves based on the operation information. By controlling the ventilation valves and discharge valves based on the operation information from the operation panel, the low control accuracy problem inherent in prior art where operation panel switches directly drive the ventilation valves and discharge valves is solved.

Description

Technical Field

[0001] This invention belongs to the field of marine engineering technology, and specifically relates to an electrical control system for a soot blowing system on a drilling platform. Background Technology

[0002] When cementing operations are carried out on offshore platforms, the required materials need to be transferred from ash tanks in different locations to the cementing system by blowing soot, according to the cementing process. The material transfer operation requires the operation of ventilation valves and discharge valves, monitoring the opening and closing status of ventilation valves, controlling the opening degree of discharge valves, and monitoring tank pressure and material weight.

[0003] The original soot blowing electrical control system used primitive relay control without a controller. The tank pressure and valve opening relied on the pressure gauge to monitor, resulting in low accuracy, poor stability, and lack of intuitiveness. Furthermore, the material metering method for the ash tank was outdated. At the same time, the lack of logical interlocks made the system very complicated to operate, requiring multiple people to work together. Summary of the Invention

[0004] To address all or part of the aforementioned problems, the present invention aims to provide an electrical control system for a drilling platform soot blowing system. The present invention controls the ventilation valve and the discharge valve through a first control unit based on the operation information of the operation panel, thereby solving the problem of low control accuracy in the prior art where the operation panel switch directly drives the ventilation valve and the discharge valve.

[0005] According to one aspect of the present invention, an electrical control system for a soot blowing system of a drilling platform is provided, the soot blowing system comprising various soot cans, a discharge valve, and a ventilation valve, the electrical control system comprising: The control panel is provided with ventilation valve operation knobs corresponding to the number of ventilation valves and discharge valve operation knobs corresponding to the number of discharge valves. Each ventilation valve operation knob is used to control the corresponding ventilation valve, and each discharge valve operation knob is used to control the corresponding discharge valve. A first control unit is connected to the operation panel. The first control unit is used to collect operation information of each ventilation valve operation knob and each exhaust valve operation knob. The first control unit is also connected to the exhaust valve and the ventilation valve. The first control unit is used to control the corresponding ventilation valve and the exhaust valve according to the operation information.

[0006] Furthermore, the electronic control system also includes a first pressure sensor and a first display unit corresponding to the number of ash tanks. Each first pressure sensor is installed on the tank pressure feedback tube bundle of the corresponding ash tank, and each first pressure sensor is used to detect the tank pressure in the corresponding ash tank. The first control unit is connected to all the first pressure sensors, and the first control unit is used to collect the tank pressure of the corresponding ash tank detected by each of the first pressure sensors; the first control unit is connected to the first display unit, and the first display unit is used to display the tank pressure of each ash tank.

[0007] Furthermore, for any of the ash hoppers, if its pressure is greater than the first set value, the first control unit controls the corresponding ventilation valve to close and controls the corresponding discharge valve to reduce its opening until the corresponding first pressure sensor detects that the ash hopper pressure is less than or equal to the second set value; and after the ash hopper pressure is less than or equal to the second set value, the first control unit controls the corresponding ventilation valve and discharge valve to maintain their current state.

[0008] Furthermore, the electronic control system also includes a level sensor corresponding to the number of ash hoppers, a second control unit, and a second display unit. Each level sensor is respectively installed in the corresponding ash hopper, and each level sensor is used to detect the level information of the material in the corresponding ash hopper. The second control unit is used to calculate the weight of the material in each ash hopper based on the material level information in each ash hopper; the second display unit is connected to the second control unit and is used to display the volume of each ash hopper, the weight of the material in the hopper, and the material level information in the hopper.

[0009] Furthermore, the first control unit and the second control unit are connected via a communication cable. The first control unit is also used to receive the material level information and the weight of the material in each ash hopper. The first display unit is also used to display the volume of each ash hopper, the weight of the material in the hopper, and the material level information of the material in the hopper. The second display unit is also used to display the hopper pressure of each ash hopper.

[0010] Furthermore, the first control system, the first display unit, and the operation panel are located inside the mud pump room, while the second control system and the second display unit are located inside the ballast chamber; the first set value is 0.8 MPa, and the second set value is 0.6 MPa.

[0011] Furthermore, the electronic control system also includes a switch status detection element corresponding to the number of ventilation valves, and each switch status detection element is used to detect the switch status of the corresponding ventilation valve. The first control unit is connected to the switch status detection element, and the first control unit is used to collect the switch status of each ventilation valve; the first display unit is used to display the switch status of each ventilation valve.

[0012] Furthermore, each of the ventilation valves is equipped with a ventilation solenoid valve on its pipeline. Each ventilation solenoid valve is connected to the first control unit. For any ventilation valve operation knob, when the corresponding operation information is to adjust the corresponding ventilation valve to the "open" or "closed" position, the first control unit receives the operation information and controls the corresponding ventilation solenoid valve according to the operation information. At the same time, the first control unit collects the opening and closing status of the corresponding ventilation valve after adjustment through the corresponding opening and closing status detection element. If the operation information is inconsistent with the opening and closing status after adjustment, the first control unit stops outputting the opening and closing status after adjustment to the first display unit and issues an alarm message. The electronic control system further includes an alarm unit, which is connected to the first control unit and is used to sound an alarm upon receiving the alarm information. The alarm unit includes an audible alarm and / or a visual alarm, and each of the switch status detection elements is a limit switch installed on the corresponding ventilation valve.

[0013] Furthermore, the electronic control system also includes a second pressure sensor corresponding to the number of discharge valves, each second pressure sensor being installed on the corresponding discharge valve feedback tube bundle, and each second pressure sensor being used to detect the pressure on the corresponding discharge valve feedback tube bundle. The first control unit is connected to the second pressure sensor. The first control unit is used to collect the pressure detected by each of the second pressure sensors and calculate the opening degree of the corresponding discharge valve based on the pressure. The first display unit is used to display the valve opening degree of each discharge valve.

[0014] Furthermore, the operation panel is provided with an adjustment duration input module corresponding to each discharge valve. Each adjustment duration input module is connected to the first control unit. The first control unit is used to receive the adjustment duration input through each adjustment duration input module. The first control unit is also used to calculate the preset opening degree of the corresponding discharge valve based on each adjustment duration and the current state of the corresponding discharge valve. Each of the discharge valves is equipped with a discharge solenoid valve on its pipeline. Each discharge solenoid valve is connected to the first control unit. For any discharge valve, when the operation information is to adjust the discharge valve to the "open" or "closed" position using the discharge valve operation knob and input the adjustment time of the discharge valve through the adjustment time input module, the first control unit receives the operation information and the adjustment time, and controls the corresponding discharge solenoid valve according to the operation information and the adjustment time. At the same time, the first control unit obtains the valve opening after adjustment through the second pressure sensor. If the preset opening degree is inconsistent with the adjusted valve opening degree and the deviation between the two is greater than or equal to 5%, the first control unit continues to adjust the corresponding discharge solenoid valve according to the preset opening degree until the deviation between the preset opening degree and the adjusted valve opening degree is less than or equal to 3%.

[0015] As can be seen from the above technical solution, the electrical control system for a drilling platform soot blowing system provided by the present invention has the following beneficial effects: The present invention controls the ventilation valve and the exhaust valve according to the operation information of the operation panel through the first control unit, which solves the problem of low control accuracy of the ventilation valve and the exhaust valve directly driven by the operation panel switch in the prior art; The electronic control system of this invention collects material level data in real time through tank level sensors, which is then converted into material weight by the second control unit in conjunction with tank volume parameters, solving the problem of large errors in traditional manual estimation. The first pressure sensor in the tank pressure feedback pipeline dynamically monitors the pressure inside the tank, forming a closed-loop pressure monitoring system. By collecting manual command signals from the operation panel, the system controls the start and stop of ventilation valves and discharge valves and their timing, realizing full-process monitoring of "material metering - pressure monitoring - transfer control". This replaces the traditional decentralized control mode and improves system integration and control efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an electrical control system for a soot blowing system on a drilling platform, according to an embodiment of the present invention. The attached figures are labeled as follows: material level sensor 01, second control unit 02, second display unit 03, ventilation valve operation knob 04, discharge valve operation knob 05, first control unit 06, first display unit 07, explosion-proof junction box 08, switch status detection element 09, first pressure sensor 010, second pressure sensor 011, ventilation solenoid valve 012, and discharge solenoid valve 013. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this invention, the following detailed description of an electrical control system for a drilling platform soot blowing system is provided in conjunction with the accompanying drawings.

[0018] This invention relates to the electrical control system of a soot blowing system used in soot blowing operations on floating platforms for offshore oil and mineral development. The electrical control system of this invention is used to control ventilation valves and discharge valves during soot blowing operations to achieve tank pressure adjustment, material transfer within the soot tanks, and material weight monitoring, thereby improving operational convenience, intrinsic safety, and automation. The soot blowing system of the floating platform for offshore oil and mineral development includes various soot tanks, discharge valves, and ventilation valves.

[0019] like Figure 1 The diagram illustrates an electrical control system for a soot blowing system on a drilling platform according to an embodiment of the present invention. The system includes an operation panel and a first control unit 06. The operation panel is equipped with ventilation valve operation knobs 04 corresponding to the number of ventilation valves and discharge valve operation knobs 05 corresponding to the number of discharge valves. Each ventilation valve operation knob 04 controls a corresponding ventilation valve, and each discharge valve operation knob 05 controls a corresponding discharge valve. The first control unit 06 is connected to the operation panel and is used to collect operation information from each ventilation valve operation knob 04 and each discharge valve operation knob 05. The first control unit 06 is also connected to the discharge valves and ventilation valves and is used to control the corresponding ventilation valves and discharge valves according to the operation information.

[0020] The electronic control system of the present invention includes an operation panel and a first control unit 06. The operation panel is equipped with ventilation valve operation knobs 04 corresponding to the number of ventilation valves and discharge valve operation knobs 05 corresponding to the number of discharge valves. The ventilation valve operation knobs 04 and discharge valve operation knobs 05 can perform corresponding operations. Upon receiving the operation information, the first control unit 06 controls the corresponding ventilation valves and discharge valves accordingly. This embodiment of the invention solves the problem of low control accuracy in the prior art where operation panel switches directly drive ventilation valves and discharge valves.

[0021] The electronic control system of this embodiment further includes a first pressure sensor 010 and a first display unit 07 corresponding to the number of ash tanks. Each first pressure sensor 010 is installed on the tank pressure feedback tube bundle of the corresponding ash tank, and each first pressure sensor 010 is used to detect the tank pressure in the corresponding ash tank. A first control unit 06 is connected to all the first pressure sensors 010 and is used to collect the tank pressure of the corresponding ash tank detected by each first pressure sensor 010. The first control unit 06 is connected to the first display unit 07 and is used to display the tank pressure of each ash tank.

[0022] In this embodiment of the invention, tank pressure is detected by a first pressure sensor 010 installed on the tank pressure feedback tube bundle, and the tank pressure of each ash tank is displayed by a first display unit 07. For any given ash tank, this embodiment also includes a protection mechanism for its internal tank pressure. Specifically, if the tank pressure of any ash tank exceeds a first preset value, the first control unit 06 controls the corresponding ventilation valve to close and the corresponding discharge valve to reduce its opening until the first pressure sensor 010 detects that the tank pressure of that ash tank is less than or equal to a second preset value. After the tank pressure of that ash tank is less than or equal to the second preset value, the first control unit 06 controls the corresponding ventilation valve and discharge valve to maintain their current state. The first preset value is, for example, 0.8 MPa, and the second preset value is, for example, 0.6 MPa. The opening and closing of the ventilation valve causes pressure changes within the ash tank, thus affecting the speed of material entry and exit. Adjusting the opening of the discharge valve affects the flow rate of material entry and exit. By adjusting the ventilation valve and discharge valve, serious consequences such as pipe blockage, material splashing, and overpressure within the tank can be avoided.

[0023] Specifically, for example, for ash hopper No. 1, the corresponding first pressure sensor 010 detects that the internal pressure of the hopper is 1.0 MPa. The first control unit 06 obtains the hopper pressure and transmits it to the first display unit 07. The first display unit 07 displays the hopper pressure information. At the same time, the first control unit 06 controls the ventilation valve corresponding to ash hopper No. 1 to close and controls the opening of the discharge valve corresponding to ash hopper No. 1 to gradually decrease. Through this operation, the hopper pressure in ash hopper No. 1 gradually decreases. During the process, the corresponding first pressure sensor 010 detects the hopper pressure in ash hopper No. 1 in real time and sends the detection result to the first control unit 06. When the first pressure sensor 010 detects that the pressure in ash hopper No. 1 is equal to or less than 0.6 MPa, the first control unit 06 controls the ventilation valve and discharge valve corresponding to the ash hopper to maintain this state.

[0024] In this embodiment of the invention, the first pressure sensor 010 of the tank pressure feedback pipeline dynamically monitors the pressure inside the tank, and the first control unit 06 controls the ventilation valve and the discharge valve according to the monitored pressure, thereby realizing closed-loop monitoring of the pressure inside the tank.

[0025] The electronic control system also includes a level sensor 01 corresponding to the number of ash hoppers, a second control unit 02, and a second display unit 03. Each level sensor 01 is installed in the corresponding ash hopper and is used to detect the level information of the material in the corresponding ash hopper. The second control unit 02 is used to calculate the weight of the material in each ash hopper based on the level information of the material in each ash hopper. The second display unit 03 is connected to the second control unit 02 and is used to display the volume of each ash hopper, the weight of the material in the hopper, and the level information of the material in the hopper.

[0026] Specifically, the electronic control system of this embodiment also includes a level sensor 01, a second control unit 02, and a second display unit 03. Each ash hopper is equipped with a level sensor 01 for detecting the level information of the material inside. For any level sensor 01, after detecting the level information of the material in its corresponding ash hopper, it sends the level information to the second control unit 02. The second control unit 02 then calculates the weight of the material in its corresponding ash hopper based on the level information and a known weight coefficient. After calculating the weight of the material in its corresponding ash hopper, the second control unit 02 sends the weight to the second display unit 03. The second display unit 03 then displays the volume of the ash hopper, the weight of the material inside, and the level information of the material inside.

[0027] The first control unit 06 and the second control unit 02 are connected by a communication cable. The first control unit 06 is also used to receive the material level information and the weight of the material in each ash hopper. The first display unit 07 is also used to display the volume of each ash hopper, the weight of the material in the hopper, and the material level information of the material in the hopper. The second display unit 03 is also used to display the hopper pressure of each ash hopper.

[0028] Specifically, the first control unit 06 and the second control unit 02 are connected via a communication cable to enable communication and data exchange between them. This exchanged data includes the pressure, volume, weight of the material inside the ash can, and material level information for each ash can. Therefore, after the second control unit 02 exchanges the volume, weight, and material level information of each ash can with the first control unit 06, the first display unit 07 receives this information and displays the volume, weight, and material level information of each ash can. Similarly, after the first control unit 06 exchanges the collected pressure data of each ash can with the second control unit 02, the second display unit 03 receives this information and displays the pressure of each ash can.

[0029] In specific implementation, for example, both the first display unit 07 and the second display unit 03 are human-machine interfaces (HMIs). The first control system, the first display unit 07, and the operation panel are located inside the mud pumping station, while the second control system and the second display unit 03 are located inside the ballast chamber. Specifically, the second control system in the ballast chamber processes the material level signals from the ash hoppers on-site to calculate the weight of the material inside the hoppers. The HMI installed in the ballast chamber accesses the local second control system to obtain and display system parameter information. The second control system in the ballast chamber communicates with the first control system in the mud pumping station using a communication module to exchange data, including pressure signals, data inside the hoppers, and CPU instructions for each ash hopper. After obtaining data from the second control system in the ballast chamber, the first control system in the mud pumping station accesses the local first control system to obtain and display the system parameter information. The CPU instructions here are, for example, instructions on the number of times the level sensor 01 of each ash hopper is detected at a set time. Specifically, the corresponding CPU instructions are input through the input area of ​​the operation panel or the input area of ​​the first display unit 07. After receiving the instructions, the first control unit 06 transmits the instructions to the second control unit 02, and the second control unit 02 controls the corresponding level sensor 01 according to the instructions.

[0030] The configuration of this invention enables the calculation of material weight based on the material level signal fed back by the material level sensor 01, thereby facilitating the requirement to directly understand the weight of the material inside the tank during soot blowing operations and solving the problem of large errors in traditional manual estimation.

[0031] The electronic control system of this embodiment further includes a switch status detection element 09 corresponding to the number of ventilation valves, each switch status detection element 09 being used to detect the switch status of the corresponding ventilation valve; a first control unit 06 is connected to the switch status detection element 09, the first control unit 06 being used to collect the switch status corresponding to each ventilation valve; and a first display unit 07 being used to display the switch status of each ventilation valve.

[0032] Specifically, the switch state detection element 09 of this embodiment is used to detect the switch state of the corresponding ventilation valve. After the state information detected by the switch state detection element 09 is acquired by the first control unit 06, the first control unit 06 transmits it to the first display unit 07, so that the first display unit 07 displays the switch state of each ventilation valve, thereby making it easier for on-site personnel to intuitively understand the switch state of the ventilation valve. In this embodiment, the ventilation valve has only two states: open and closed.

[0033] Each ventilation valve is equipped with a ventilation solenoid valve 012 on its respective pipeline. Each ventilation solenoid valve 012 is connected to the first control unit 06. For any ventilation valve operation knob 04, when the corresponding operation information is to adjust the corresponding ventilation valve to the "open" or "closed" position, the first control unit 06 receives the operation information and controls the corresponding ventilation solenoid valve 012 according to the operation information. At the same time, the first control unit 06 collects the on / off state of the corresponding ventilation valve after adjustment through the corresponding on / off state detection element 09. If the operation information is inconsistent with the adjusted on / off state, the first control unit 06 stops outputting the adjusted on / off state to the first display unit 07 and issues an alarm message. The electronic control system of this embodiment also includes an alarm unit connected to the first control unit 06. The alarm unit is used to issue an alarm after receiving an alarm message.

[0034] Specifically, for any given ventilation valve, the oil circuit is controlled by a ventilation solenoid valve 012 installed on the corresponding ventilation valve pipeline at each ash tank, thereby adjusting the open / closed state of the ventilation valve. Specifically, as mentioned above, the control panel is equipped with ventilation valve operation knobs 04 corresponding to the number of ventilation valves. Taking any ventilation valve operation knob 04 as an example, this knob has an "open" position and a "closed" position. When the operation information for the ventilation valve operation knob 04 is to adjust it to the "open" position, the first control unit 06 receives this operation information and controls the corresponding ventilation solenoid valve 012 according to the operation information. The ventilation solenoid valve 012 then adjusts the ventilation valve corresponding to the ventilation valve operation knob 04 to the "open" state. Thus, this embodiment of the invention achieves control of the ventilation valve through this setting. This embodiment of the invention also includes feedback control for the ventilation valve. Specifically, the on / off state of the ventilation valve after adjustment is detected by the on / off state detection element 09, and the detection result is fed back to the first control unit 06. The first control unit 06 then determines whether the feedback result is consistent with the operation information. If they are inconsistent, an alarm is triggered. For example, the operation information received by the first control unit 06 is to adjust the ventilation valve operation knob 04 to the "open" position, while the feedback information obtained by the first control unit 06 is that the ventilation valve is still in the "closed" position. In this case, the first control unit 06 will immediately trigger an alarm. Thus, this embodiment of the invention achieves monitoring of the state of the adjusted ventilation valve. For the alarm triggered by the first control unit 06 determining that the feedback information and the operation information are inconsistent, for example, the first control unit 06 will delay the alarm for a period of time, such as 3 seconds. The aforementioned alarm unit is, for example, an audible alarm and / or a visual alarm. Each of the aforementioned on / off state detection elements 09 is a limit switch installed on the corresponding ventilation valve, and the ventilation valve operation knob 04 is, for example, a self-locking switch.

[0035] To reiterate, for the ventilation valve, the embodiment of this invention adopts the following control logic: When the ventilation valve operation knob 04 on the control panel is turned to the "open" position, the first control unit 06 outputs an output to control the ventilation solenoid valve 012 to operate. When the ventilation solenoid valve 012 operates, the ventilation valve opens accordingly. At the same time, the switch status detection element 09 collects the valve feedback signal. The first control unit 06 determines whether the feedback information and the operation information are consistent. If they are inconsistent, the first control unit 06 pauses its output after a 3-second delay and triggers an alarm. The control logic when the ventilation valve operation knob 04 on the control panel is turned to the "closed" position is the same as above.

[0036] Therefore, this invention innovatively designs a status monitoring mechanism for the hydraulic drive mechanism of ventilation valves, which facilitates timely detection of abnormal states such as valve jamming or failure to reach the correct position. This solves the execution deviation problem caused by "control without inspection" in traditional valve control, and improves the system's operational accuracy and fault prediction capabilities.

[0037] The electronic control system of this embodiment further includes a second pressure sensor 011 corresponding to the number of discharge valves. Each second pressure sensor 011 is installed on the corresponding discharge valve feedback tube bundle, and each second pressure sensor 011 is used to detect the pressure on the corresponding discharge valve feedback tube bundle. A first control unit 06 is connected to the second pressure sensor 011 and is used to collect the pressure detected by each second pressure sensor 011 and calculate the opening degree of the corresponding discharge valve based on the pressure. A first display unit 07 is used to display the valve opening degree of each discharge valve.

[0038] Specifically, in this embodiment of the invention, the second pressure sensor 011 is used to detect the pressure on the corresponding discharge valve feedback tube bundle. After the status information detected by the second pressure sensor 011 is acquired by the first control unit 06, the first control unit 06 calculates the opening degree of the corresponding discharge valve based on the pressure and transmits the opening degree of the discharge valve to the first display unit 07. Thus, the first display unit 07 displays the opening degree of each discharge valve, which makes it easier for on-site personnel to intuitively understand the opening degree of the discharge valve. The discharge valve in this embodiment is a two-position self-resetting switch, that is, it has three states: closed, stopped, and open, and the initial state is in the middle stop position.

[0039] The control panel includes an adjustment time input module corresponding to each discharge valve. Each adjustment time input module is connected to a first control unit 06. The first control unit 06 receives the adjustment time input through each adjustment time input module and calculates the preset opening degree of the corresponding discharge valve based on each adjustment time. Each discharge valve's pipeline is equipped with a discharge solenoid valve 013, and each discharge solenoid valve 013 is connected to the first control unit 06. For any discharge valve, when the operation information is to open the discharge valve using the discharge valve operation knob 05... When the valve is adjusted to the "open" or "closed" position and the adjustment time of the discharge valve is input through the adjustment time input module, the first control unit 06 receives the operation information and adjustment time, and controls the corresponding discharge solenoid valve 013 according to the operation information and adjustment time. At the same time, the first control unit 06 collects the valve opening after adjustment. If the preset opening degree is inconsistent with the valve opening after adjustment and the deviation between the two is greater than or equal to 5%, the first control unit 06 continues to adjust the corresponding discharge solenoid valve 013 according to the preset opening degree until the deviation between the preset opening degree and the valve opening after adjustment is less than or equal to 3%.

[0040] Specifically, for the discharge valve, the second pressure sensor 011 installed on the discharge valve feedback pipe bundle detects the pressure, and the first control unit 06 calculates the valve opening based on the pressure. The discharge solenoid valve 013 installed on the discharge valve pipeline of each ash tank controls the hydraulic oil circuit, thereby controlling the adjustment of the discharge valve opening. For any discharge valve, it includes on / off state control and adjustment time control. When the discharge valve is in the open state, the longer the adjustment time, the larger the valve opening. Under the limit time, the discharge valve is fully open. When the discharge valve is in the closed state, the longer the adjustment time, the smaller the valve opening. Under the limit time, the discharge valve is fully closed.

[0041] Taking any discharge valve as an example, when the adjustment time is input through the adjustment time input module, the first control unit 06 calculates the adjusted valve opening based on the adjustment time and the current valve opening. When the adjustment time is input and the discharge valve operation knob 05 is adjusted to the "open" or "closed" position, the first control unit 06 controls the corresponding discharge solenoid valve 013 according to the operation information and the input time. Then, the discharge solenoid valve 013 controls the discharge valve to adjust the corresponding adjustment time according to the operation information. After the discharge valve adjusts the corresponding adjustment time, the second pressure sensor 011 collects pressure information again. The first control unit 06 then calculates the adjusted valve opening based on the pressure information. If the preset opening degree is inconsistent with the adjusted valve opening degree and the deviation between the two is greater than or equal to 5%, the first control unit 06 continues to adjust the corresponding discharge solenoid valve 013 according to the preset opening degree until the deviation between the preset opening degree and the adjusted valve opening degree is less than or equal to 3%.

[0042] This embodiment of the invention also includes an explosion-proof junction box 08. The circuits of the switch status detection element 09, the ventilation solenoid valve 012, and the discharge solenoid valve 013 are all connected to the explosion-proof junction box 08, and then the explosion-proof junction box 08 is connected to the first control unit 06.

[0043] For the discharge valve, this embodiment of the invention uses a second pressure sensor 011 to collect the pressure data corresponding to the discharge valve in real time, so as to convert the pressure data into a precise opening percentage (0%-100%). Thus, this embodiment of the invention ensures that the material transfer flow is controllable, solves the execution deviation problem caused by "control without inspection" in traditional valve control, and improves the system operation accuracy and fault prediction capability.

[0044] In specific implementation, taking a system including 4 cement silos and 4 barite / soil powder silos as an example, the first display unit 07 of this embodiment displays the time and status at the top; the middle section is divided into "left 1-left 4 cement silos" and "right 1-right 4 barite / soil powder silos", with each section displaying the ventilation valve status (green "open" / red "closed"), silo pressure (psi), volume (m³), weight (ton), material level (m), and discharge valve opening (%). It also features an alarm prompt: when a silo is overpressurized, the border of the corresponding silo area flashes red, displaying "Silo Pressure Over-Alarm!", and a buzzer sounds an alarm. It has a parameter setting interface. Clicking the "Settings" icon on the main interface and entering the password "555" will enter the parameter setting interface. The parameter setting interface allows setting parameters including sensor range calibration and alarm buzzer on / off. After setting, clicking the "Save" button will write the parameters to the first control unit 06 for permanent storage. Clicking "Cancel" on the parameter setting interface will discard the modifications and return to the main interface. It features a historical data interface that supports queries by day / week / month, displaying daily maximum tank pressure, minimum tank pressure, average tank opening, and cumulative operating time. It also has a fault recording and display function, capable of showing nearly 100 fault entries.

[0045] The first and second display units of this invention are designed with "minimalist interaction" as their core, creating an efficient and visual experience. The interface adopts a modular layout, displaying information such as tank pressure, material weight, valve status, and valve opening. Core information such as process, parameters, status, and alarms are presented in categories, making operation clear at a glance. Parameters are displayed in priority order to ensure accurate information transmission. The interface is clear and easy to use.

[0046] The electronic control system of this invention innovatively integrates three major functions: a material level sensor, a first pressure sensor, a second pressure sensor, and signal acquisition from the operation panel. Specifically, the material level sensor in the tank collects material level data in real time, which is then converted into material weight by the second control unit using a tank volume parameter algorithm, solving the problem of large errors in traditional manual estimation. The first pressure sensor in the tank pressure feedback pipeline dynamically monitors the pressure inside the tank, forming a closed-loop pressure monitoring system. By collecting manual command signals from the operation panel, the system controls the start / stop and timing of the ventilation valve and discharge valve, realizing full-process monitoring of "material metering - pressure monitoring - transfer control," replacing the traditional decentralized control mode and improving system integration and control efficiency.

[0047] The electrical control system of this invention adopts an interlocking protection mechanism to achieve full-scenario safety protection of "parameter over-limit - action interlock - emergency alarm". Specifically, when the tank pressure is over-pressurized, the first control unit automatically controls the corresponding ventilation valve to close and controls the opening of the corresponding discharge valve to decrease. When the ventilation valve is not in position, the first control unit automatically issues an alarm message. When the opening degree of the discharge valve after adjustment is inconsistent with the preset opening degree, the control system continues to adjust the corresponding discharge solenoid valve according to the preset opening degree until the deviation between the preset opening degree and the adjusted valve opening degree is less than or equal to 3%. This avoids safety risks caused by misoperation or equipment failure, improves the reliability of system control, and enables the electrical control system of this invention to meet the high safety level operation requirements of drilling platforms.

[0048] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by those skilled in the art to which this invention pertains.

[0049] Furthermore, the terms "a," "two," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrical control system for a soot blowing system on a drilling platform, the soot blowing system comprising various soot cans, discharge valves, and ventilation valves, characterized in that, The electronic control system includes: The control panel is provided with ventilation valve operation knobs corresponding to the number of ventilation valves and discharge valve operation knobs corresponding to the number of discharge valves. Each ventilation valve operation knob is used to control the corresponding ventilation valve, and each discharge valve operation knob is used to control the corresponding discharge valve. A first control unit is connected to the operation panel. The first control unit is used to collect operation information of each ventilation valve operation knob and each exhaust valve operation knob. The first control unit is also connected to the exhaust valve and the ventilation valve. The first control unit is used to control the corresponding ventilation valve and the exhaust valve according to the operation information.

2. The electrical control system for a drilling platform soot blowing system according to claim 1, characterized in that, The electronic control system also includes a first pressure sensor and a first display unit corresponding to the number of ash tanks. Each first pressure sensor is installed on the tank pressure feedback tube bundle of the corresponding ash tank, and each first pressure sensor is used to detect the tank pressure in the corresponding ash tank. The first control unit is connected to all the first pressure sensors, and the first control unit is used to collect the tank pressure of the corresponding ash tank detected by each of the first pressure sensors; the first control unit is connected to the first display unit, and the first display unit is used to display the tank pressure of each ash tank.

3. The electrical control system for a drilling platform soot blowing system according to claim 2, characterized in that, For any of the ash hoppers, if its pressure is greater than a first set value, the first control unit controls the corresponding ventilation valve to close and controls the corresponding discharge valve to reduce its opening until the corresponding first pressure sensor detects that the pressure of the ash hopper is less than or equal to a second set value; and after the pressure of the ash hopper is less than or equal to the second set value, the first control unit controls the corresponding ventilation valve and discharge valve to maintain their current state.

4. The electrical control system for a drilling platform soot blowing system according to claim 2, characterized in that, The electronic control system also includes a level sensor corresponding to the number of ash hoppers, a second control unit, and a second display unit. Each level sensor is installed in the corresponding ash hopper, and each level sensor is used to detect the level information of the material in the corresponding ash hopper. The second control unit is used to calculate the weight of the material in each ash hopper based on the material level information in each ash hopper; the second display unit is connected to the second control unit and is used to display the volume of each ash hopper, the weight of the material in the hopper, and the material level information in the hopper.

5. The electrical control system for a drilling platform soot blowing system according to claim 4, characterized in that, The first control unit and the second control unit are connected by a communication cable. The first control unit is also used to receive the material level information and the weight of the material in each ash hopper. The first display unit is also used to display the volume of each ash hopper, the weight of the material in the hopper, and the material level information of the material in the hopper. The second display unit is also used to display the hopper pressure of each ash hopper.

6. The electrical control system for a drilling platform soot blowing system according to claim 5, characterized in that, The first control system, the first display unit, and the operation panel are located inside the mud pump room, while the second control system and the second display unit are located inside the ballast chamber; the first set value is 0.8 MPa, and the second set value is 0.6 MPa.

7. The electrical control system for a drilling platform soot blowing system according to claim 2, characterized in that, The electronic control system also includes a switch status detection element corresponding to the number of ventilation valves, and each switch status detection element is used to detect the switch status of the corresponding ventilation valve. The first control unit is connected to the switch status detection element, and the first control unit is used to collect the switch status of each ventilation valve; the first display unit is used to display the switch status of each ventilation valve.

8. The electrical control system for a drilling platform soot blowing system according to claim 7, characterized in that, Each ventilation valve is equipped with a ventilation solenoid valve on its respective pipeline. Each ventilation solenoid valve is connected to the first control unit. For any ventilation valve operation knob, when the corresponding operation information is to adjust the corresponding ventilation valve to the "open" or "closed" position, the first control unit receives the operation information and controls the corresponding ventilation solenoid valve according to the operation information. At the same time, the first control unit collects the on / off state of the corresponding ventilation valve after adjustment through the corresponding on / off state detection element. If the operation information is inconsistent with the on / off state after adjustment, the first control unit stops outputting the on / off state after adjustment to the first display unit and issues an alarm message. The electronic control system further includes an alarm unit, which is connected to the first control unit and is used to sound an alarm upon receiving the alarm information. The alarm unit includes an audible alarm and / or a visual alarm, and each of the switch status detection elements is a limit switch installed on the corresponding ventilation valve.

9. The electrical control system for a drilling platform soot blowing system according to claim 2, characterized in that, The electronic control system also includes a second pressure sensor corresponding to the number of discharge valves. Each second pressure sensor is installed on the corresponding discharge valve feedback tube bundle, and each second pressure sensor is used to detect the pressure on the corresponding discharge valve feedback tube bundle. The first control unit is connected to the second pressure sensor. The first control unit is used to collect the pressure detected by each of the second pressure sensors and calculate the opening degree of the corresponding discharge valve based on the pressure. The first display unit is used to display the valve opening degree of each discharge valve.

10. The electrical control system for a drilling platform soot blowing system according to claim 8, characterized in that, The operation panel is provided with an adjustment time input module corresponding to each discharge valve. Each adjustment time input module is connected to the first control unit. The first control unit is used to receive the adjustment time input through each adjustment time input module. The first control unit is also used to calculate the preset opening degree of the corresponding discharge valve based on each adjustment time and the current state of the corresponding discharge valve. Each of the discharge valves is equipped with a discharge solenoid valve on its pipeline. Each discharge solenoid valve is connected to the first control unit. For any discharge valve, when the operation information is to adjust the discharge valve to the "open" or "closed" position using the discharge valve operation knob, and the adjustment duration of the discharge valve is input through the adjustment duration input module, the first control unit receives the operation information and the adjustment duration, and controls the corresponding discharge solenoid valve according to the operation information and the adjustment duration. At the same time, the first control unit obtains the valve opening after adjustment through the second pressure sensor. If the preset opening degree is inconsistent with the adjusted valve opening degree and the deviation between the two is greater than or equal to 5%, the first control unit continues to adjust the corresponding discharge solenoid valve according to the preset opening degree until the deviation between the preset opening degree and the adjusted valve opening degree is less than or equal to 3%.

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