Switch control device and control method thereof

Abstract

The present invention provides a switch control device and a control method thereof, the switch control device comprising: an analog input module, which is used to collect the real-time position of the gas cylinder and / or waste gas cylinder plug; a drive module, which is used to drive the movement of the gas cylinder and / or waste gas cylinder plug; a controller, which is respectively connected to the analog input module and the drive module, the controller is used to control the drive module according to the real-time position of the gas cylinder and / or waste gas cylinder plug to close the gas cylinder and / or waste gas cylinder; a switch input module connected to the controller, the switch input module is used to collect the switch quantity of the gas cylinder and / or waste gas cylinder, the controller is also used to control the drive module according to the switch quantity of the gas cylinder and / or waste gas cylinder, so that the gas cylinder and / or waste gas cylinder plug moves according to a predetermined rule. The embodiment of the present application provides a switch control device and a control method thereof, which can avoid manually closing the gas cylinder and waste gas cylinder of the coke oven when a coke oven fails.

Description

Technical Field

[0001] The invention relates to the field of coking, and in particular to a switch control device and a control method thereof. Background Art

[0002] The switch is used to change the gas flow direction of coal gas, air and exhaust gas in the coke oven heating system.

[0003] The existing switch adopts PLC control mode. That is, the input and output points of the switch are connected to the PLC module. The PLC module can control the output of the switch according to the input of the switch, and then control the switching process of the switch. However, when the coke oven fails and the switch needs to stop heating, manual operation is required to close the gas cylinder and exhaust gas cylinder of the coke oven. Since manual operation may cause misoperation and if the operation is not timely, it will cause serious consequences; therefore, this control method has certain risks.

[0004] Therefore, it is necessary to propose a switch control device and a control method thereof to overcome the above defects. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a switch control device and a control method thereof, which can avoid shutting down the gas cylinder and exhaust gas cylinder of the coke oven through manual operation when a coke oven fails.

[0006] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions: a switch control device, comprising: an analog input module, which is used to collect the real-time position of the gas cylinder and / or the waste gas cylinder plug; a driving module, which is used to drive the movement of the gas cylinder and / or the waste gas cylinder plug; a controller, which is respectively connected to the analog input module and the driving module, and the controller is used to control the driving module according to the real-time position of the gas cylinder and / or the waste gas cylinder plug to close the gas cylinder and / or the waste gas cylinder.

[0007] As a preferred embodiment, it includes: a switch quantity input module, which is connected to the controller, and is used to collect the switch quantity of the gas cylinder and / or the waste gas cylinder. The controller is also used to control the drive module according to the switch quantity of the gas cylinder and / or the waste gas cylinder, so that the drive module can drive the gas cylinder and / or the waste gas cylinder valve to move according to predetermined rules.

[0008] As a preferred embodiment, the switch quantity input module is also used to collect the switch quantity of the emergency stop mechanism, and when the emergency stop mechanism is not triggered, the controller controls the drive module according to the switch quantity of the gas cylinder and / or the waste gas cylinder, so that the drive module can drive the gas cylinder and / or the waste gas cylinder valve to move according to the predetermined rule, wherein the emergency stop mechanism is used to operate when it is necessary to stop the switch.

[0009] As a preferred embodiment, when the emergency stop mechanism is triggered, the controller controls the drive module according to the real-time position of the gas cylinder and / or the waste gas cylinder valve to close the gas cylinder and / or the waste gas cylinder.

[0010] As a preferred implementation, the driving module is a switch output module.

[0011] As a preferred embodiment, it includes: a first detection device and a second detection device connected to the analog input module, the first detection device is arranged on the gas cylinder, and the first detection device is used to detect the real-time position of the gas cylinder valve, the second detection device is arranged on the waste gas cylinder, and the second detection device is used to detect the real-time position of the waste gas cylinder valve.

[0012] As a preferred implementation, both the first detection device and the second detection device are displacement sensors.

[0013] A control method according to the above switch control device comprises:

[0014] The analog input module collects the real-time position of the gas cylinder cock and the real-time position of the waste gas cylinder cock;

[0015] The controller controls the driving module according to the real-time position of the gas cylinder cock;

[0016] The driving module drives the gas cylinder cock to move until the gas cylinder cock moves to a first middle limit position; wherein the first middle limit position is the position of the gas cylinder cock when the gas cylinder is closed;

[0017] After the gas cylinder is closed, the controller controls the driving module according to the real-time position of the waste gas cylinder cock;

[0018] The driving module drives the waste gas cylinder plug to move until the waste gas cylinder plug moves to a second middle limit position; wherein the second middle limit position is the position of the waste gas cylinder plug when the waste gas cylinder is closed.

[0019] As a preferred embodiment, it also includes: the controller obtains the switching value of the emergency stop mechanism; when the emergency stop mechanism is triggered, the controller controls the driving module according to the real-time position of the gas cylinder plug, the driving module drives the gas cylinder plug to move, and after the gas cylinder is closed, the controller controls the driving module according to the real-time position of the waste gas cylinder plug, and the driving module drives the waste gas cylinder plug to move.

[0020] As a preferred embodiment, when the emergency stop mechanism is not triggered, the controller cyclically executes the following steps: the controller controls the driving module so that the driving module can drive the gas cylinder plug to move, thereby closing the gas cylinder; the controller controls the driving module so that the driving module can drive the exhaust cylinder plug to move, thereby exchanging exhaust gas and air; the controller controls the driving module so that the driving module can drive the gas cylinder plug to move, thereby opening the gas cylinder.

[0021] The switch control device and control method provided by the present application have the following beneficial effects: when a coke oven fails, the switch control device and control method of the embodiment of the present application first collects the real-time position of the gas cylinder and / or the waste gas cylinder cock through the analog input module, and then the controller controls the drive module according to the real-time position of the gas cylinder and / or the waste gas cylinder cock to close the gas cylinder and / or the waste gas cylinder. Therefore, when a coke oven fails, the switch control device of the embodiment of the present application can first automatically collect the real-time position of the gas cylinder and / or the waste gas cylinder cock; then the drive module can be controlled by the controller to automatically close the gas cylinder and / or the waste gas cylinder. In this way, the switch control device of the embodiment of the present application can close the gas cylinder and / or the waste gas cylinder in time when a coke oven fails, and there is no need to close the gas cylinder and the waste gas cylinder of the coke oven by manual operation. In addition, by closing the gas cylinder and the waste gas cylinder of the coke oven, it can be avoided that when the coke oven fails, the switch is immediately powered off, causing the gas cylinder and the waste gas cylinder to remain in place, which poses a safety hazard. Therefore, the embodiments of the present application provide a switch control device and a control method thereof, which can avoid shutting down the gas cylinder and the exhaust gas cylinder of the coke oven by manual operation when a coke oven fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1is a schematic diagram of the structure of a switch control device provided in an embodiment of the present invention;

[0024] Figure 2 It is a flow chart of a control method of a switch control device provided in an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 11. Analog input module; 13. Drive module; 15. Controller; 19. Switch input module; 21. First detection device; 23. Second detection device; 25. Gas cylinder; 27. Waste gas cylinder; 29. ​​Emergency stop mechanism; 31. Power supply; 33. Ethernet; 35. Communication bus. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 A switch control device provided in one embodiment of the present application may include: an analog input module 11, which is used to collect the real-time position of the valve of the gas cylinder 25 and / or the waste gas cylinder 27; a drive module 13, which is used to drive the movement of the valve of the gas cylinder 25 and / or the waste gas cylinder 27; a controller 15, the controller 15 is connected to the analog input module 11 and the drive module 13 respectively, and the controller 15 is used to control the drive module 13 according to the real-time position of the valve of the gas cylinder 25 and / or the waste gas cylinder 27, so as to close the gas cylinder 25 and / or the waste gas cylinder 27.

[0029] When a coke oven fails, the switch control device of the embodiment of the present application first collects the real-time position of the plug of the gas cylinder 25 and / or the waste gas cylinder 27 through the analog input module 11, and then the controller 15 controls the drive module 13 according to the real-time position of the plug of the gas cylinder 25 and / or the waste gas cylinder 27 to close the gas cylinder 25 and / or the waste gas cylinder 27. Therefore, when a coke oven fails, the switch control device of the embodiment of the present application can first automatically collect the real-time position of the plug of the gas cylinder 25 and / or the waste gas cylinder 27; then the drive module 13 can be controlled by the controller 15 to automatically close the gas cylinder 25 and / or the waste gas cylinder 27. In this way, the switch control device of the embodiment of the present application can close the gas cylinder 25 and / or the waste gas cylinder 27 in time when a coke oven fails, and there is no need to close the gas cylinder 25 and the waste gas cylinder 27 of the coke oven through manual operation. In addition, by shutting down the gas cylinder 25 and the waste gas cylinder 27 of the coke oven, it is possible to avoid the situation where, when a coke oven fails, the switch is immediately powered off, causing the gas cylinder 25 and the waste gas cylinder 27 to remain in place, thereby posing a safety hazard.

[0030] like Figure 1 As shown, in this embodiment, the analog quantity input module 11 is used to collect analog quantity. Analog quantity refers to the quantity of a variable that changes continuously within a certain range. That is, it can take any value (within the value range) within a certain range (domain).

[0031] In this embodiment, the analog quantity input module 11 is used to collect the real-time position of the gas cylinder 25 and / or the waste gas cylinder 27 cock. In other words, the analog quantity collected by the analog quantity input module 11 is the real-time position of the gas cylinder 25 and / or the waste gas cylinder 27 cock. Further, the analog quantity input module 11 can be used to obtain the real-time position of the gas cylinder 25 cock and the real-time position of the waste gas cylinder 27 cock. The analog quantity input module 11 can also be used to select one of the real-time position of the gas cylinder 25 cock and the real-time position of the waste gas cylinder 27 cock to obtain.

[0032] In one embodiment, the switch control device provided in the embodiment of the present application further includes: a first detection device 21 and a second detection device 23 connected to the analog input module 11, the first detection device 21 is arranged on the gas cylinder 25, and the first detection device 21 is used to detect the real-time position of the valve of the gas cylinder 25, and the second detection device 23 is arranged on the waste gas cylinder 27, and the second detection device 23 is used to detect the real-time position of the valve of the waste gas cylinder 27. Therefore, when the first detection device 21 detects the real-time position of the valve of the gas cylinder 25, the analog input module 11 can collect the real-time position of the valve of the gas cylinder 25 from the first detection device 21. When the second detection device 23 detects the real-time position of the valve of the waste gas cylinder 27, the analog input module 11 can collect the real-time position of the valve of the waste gas cylinder 27 from the second detection device 23.

[0033] Further, the first detection device 21 and the second detection device 23 are both displacement sensors. Thus, through the displacement sensor, the first detection device 21 can detect the displacement of the gas cylinder 25 cock. That is, through the displacement sensor, the real-time position of the gas cylinder 25 cock detected by the first detection device 21 is the real-time displacement of the gas cylinder 25 cock. Through the displacement sensor, the second detection device 23 can detect the displacement of the waste gas cylinder 27 cock. That is, through the displacement sensor, the real-time position of the waste gas cylinder 27 cock detected by the second detection device 23 is the real-time displacement of the waste gas cylinder 27 cock.

[0034] In this embodiment, the driving module 13 is used to drive the movement of the gas cylinder 25 and / or the waste gas cylinder 27. That is, the driving module 13 can be used to drive the movement of the gas cylinder 25 cock and the movement of the waste gas cylinder 27 cock. The driving module 13 can also be used to select one of the gas cylinder 25 cock and the waste gas cylinder 27 cock for driving.

[0035] Further, the driving module 13 is a switch quantity output module. The switch quantity refers to a discontinuous variable. Further, the switch quantity has two states of 1 and 0. The 1 and 0 can refer to the on and off of a circuit or the connection and disconnection of a contact, or the on and off of a digital circuit. The switch quantity output refers to outputting 0 or 1, which is used to control the on or off of an external device. Thus, the external device can be turned on or off through the switch quantity output module. Further, the switch quantity output module is used to adopt the existing switch quantity output channel structure, which is not specified in this application.

[0036] In this embodiment, the controller 15 is connected to the analog input module 11 and the drive module 13 respectively. Thus, the controller 15 can obtain the real-time position of the gas cylinder 25 and / or the waste gas cylinder 27 cock in the analog input module 11. Specifically, the analog input module 11 is connected to the controller 15 via a communication bus 35. The drive module 13 is connected to the controller 15 via a communication bus 35. Further, the controller 15 is used to control the drive module 13 according to the real-time position of the gas cylinder 25 and / or the waste gas cylinder 27 cock to close the gas cylinder 25 and / or the waste gas cylinder 27. Thus, the drive module 13 is controlled by the controller 15 so that the drive module 13 can automatically close the gas cylinder 25 and / or the waste gas cylinder 27. In this way, the switch control device of the embodiment of the present application can close the gas cylinder 25 and / or the waste gas cylinder 27 in time when a coke oven fails, and there is no need to close the gas cylinder 25 and the waste gas cylinder 27 of the coke oven by manual operation.

[0037] Specifically, the controller 15 first determines the predetermined direction of movement of the plug of the gas cylinder 25 and / or the waste gas cylinder 27 based on the real-time position of the plug of the gas cylinder 25 and / or the waste gas cylinder 27, and then the controller 15 controls the driving module 13 to move the plug of the gas cylinder 25 and / or the waste gas cylinder 27 along the predetermined direction until the gas cylinder 25 and / or the waste gas cylinder 27 are closed.

[0038] Further, the controller 15 is a PLC controller 15. Of course, the controller 15 is not limited to the PLC controller 15, and can also be other intelligent control devices, such as a computer. Further, the controller 15 is also connected to the power supply 31 and the Ethernet 33. The Ethernet 33 can be connected to the microcomputer on the corresponding control platform to facilitate control by the staff.

[0039] In one embodiment, the switch control device provided in the embodiment of the present application further includes: a switch quantity input module 19. The switch quantity input module 19 is connected to the controller 15. Specifically, the switch quantity input module 19 is connected to the controller 15 via a communication bus 35. The switch quantity input module 19 is used to collect the switch quantity of the gas cylinder 25 and / or the waste gas cylinder 27. Thus, the open state of the gas cylinder 25 can be represented by 0 or 1 through the switch quantity input module 19. And the closed state of the gas cylinder 25 can be represented by 0 or 1 through the switch quantity input module 19. The open state of the waste gas cylinder 27 can be represented by 0 or 1 through the switch quantity input module 19. And the closed state of the waste gas cylinder 27 can be represented by 0 or 1 through the switch quantity input module 19. Thus, the controller 15 can obtain the open or closed state of the gas cylinder 25 through the switch quantity input module 19. Further, the switch quantity input module 19 is used to adopt the existing switch quantity input channel structure, which is not specified in this application.

[0040] Furthermore, the controller 15 is also used to control the driving module 13 according to the switching amount of the gas cylinder 25 and / or the waste gas cylinder 27, so that the driving module 13 can drive the valve of the gas cylinder 25 and / or the waste gas cylinder 27 to move according to a predetermined rule. The predetermined rule may be to first drive the valve of the gas cylinder 25 to move to close the gas cylinder 25. Then drive the valve of the waste gas cylinder 27 to move to exchange the waste gas and air. Finally, drive the valve of the gas cylinder 25 to move to open the gas cylinder 25. Thus, the gas flow direction of the gas, air and waste gas can be reversed through the predetermined rule.

[0041] In one embodiment, the switch control device provided in the embodiment of the present application further includes: a switch quantity input detection device. One end of the switch quantity input detection device is connected to the gas cylinder 25 and / or the waste gas cylinder 27, and the other end of the switch quantity input detection device is connected to the switch quantity input module 19. The switch quantity input detection device is used to detect the switch quantity of the gas cylinder 25 and / or the waste gas cylinder 27, and upload the switch quantity of the gas cylinder 25 and / or the waste gas cylinder 27 to the switch quantity input module 19.

[0042] Furthermore, the switch quantity input detection device is connected to the switch quantity input module 19 via a relay, thereby preventing currents of different voltage levels from entering the switch quantity input module 19.

[0043] In one embodiment, the switch control device provided in the embodiment of the present application further includes: a switch quantity output detection device. One end of the switch quantity output detection device is connected to the gas cylinder 25 and / or the waste gas cylinder 27, and the other end of the switch quantity output detection device is connected to the switch quantity output module. The switch quantity output detection device is used to detect the switch quantity of the gas cylinder 25 and / or the waste gas cylinder 27, and upload the switch quantity of the gas cylinder 25 and / or the waste gas cylinder 27 to the switch quantity output module.

[0044] Furthermore, the switch output detection device is connected to the switch output module via a relay, thereby preventing currents of different voltage levels from entering the switch output module.

[0045] In one embodiment, the switch quantity input module 19 is also used to collect the switch quantity of the emergency stop mechanism 29. Among them, the emergency stop mechanism 29 is used to operate when the switch needs to be stopped. The need to stop the switch may be when a coke oven fails, such as insufficient supply of coke oven heating gas, accidental closure of the flue gate, tripping of the flue gas desulfurization system booster fan resulting in insufficient suction, etc. Of course, the need to stop the switch is not limited to when a coke oven fails, but may also be other situations where the switch needs to be stopped, which is not specified in this application. The emergency stop mechanism 29 may be an emergency stop button. Therefore, when the switch needs to be stopped, the emergency stop mechanism 29 can be triggered by pressing the emergency stop button manually or mechanically. Accordingly, when the emergency stop button is not pressed, the emergency stop mechanism 29 is neither triggered nor triggered.

[0046] Further, when the emergency stop mechanism 29 is not triggered, the controller 15 controls the driving module 13 according to the switching amount of the gas cylinder 25 and / or the exhaust cylinder 27, so that the driving module 13 can drive the valve of the gas cylinder 25 and / or the exhaust cylinder 27 to move according to a predetermined rule. That is, when it is not necessary to stop the switch, or the switch operates normally without a fault or other emergency event, the controller 15 controls the driving module 13 so that the switch can reverse the gas flow direction of the gas, air and exhaust gas through the driving of the driving module 13.

[0047] Further, when the emergency stop mechanism 29 is triggered, the controller 15 controls the drive module 13 according to the real-time position of the valve of the gas cylinder 25 and / or the waste gas cylinder 27 to close the gas cylinder 25 and / or the waste gas cylinder 27. That is, when the switch needs to stop running, or the switch fails or other emergency events occur, the controller 15 controls the drive module 13 so that the switch can close the gas cylinder 25 and / or the waste gas cylinder 27 through the drive of the drive module 13. Therefore, on the one hand, the gas cylinder 25 and / or the waste gas cylinder 27 can be closed in time when the coke oven fails, and there is no need to close the gas cylinder 25 and the waste gas cylinder 27 of the coke oven by manual operation. On the other hand, by closing the gas cylinder 25 and the waste gas cylinder 27 of the coke oven, it can be avoided that when the coke oven fails, the switch is immediately powered off, causing the gas cylinder 25 and the waste gas cylinder 27 to remain in place, which poses a safety hazard.

[0048] like Figure 2 As shown, the embodiment of the present application also provides a control method using the above-mentioned switch control device, which includes: step S11: the analog input module 11 collects the real-time position of the gas cylinder 25 valve and the real-time position of the exhaust cylinder 27 valve; step S13: the controller 15 controls the driving module 13 according to the real-time position of the gas cylinder 25 valve; step S15: the driving module 13 drives the gas cylinder 25 valve to move until the gas cylinder 25 valve moves to the first middle limit position; Wherein, the first middle limit position is the position of the valve of the gas cylinder 25 when the gas cylinder 25 is closed; step S17: after the gas cylinder 25 is closed, the controller 15 controls the driving module 13 according to the real-time position of the valve of the waste gas cylinder 27; step S19: the driving module 13 drives the valve of the waste gas cylinder 27 to move until the valve of the waste gas cylinder 27 moves to the second middle limit position; wherein, the second middle limit position is the position of the valve of the waste gas cylinder 27 when the waste gas cylinder 27 is closed.

[0049] When a coke oven fails, the control method of the switch control device of the embodiment of the present application can first automatically collect the real-time position of the gas cylinder 25 and the waste gas cylinder 27 cocks; then the driving module 13 can be controlled by the controller 15 to automatically close the gas cylinder 25 and the waste gas cylinder 27 in sequence. In this way, the switch control device of the embodiment of the present application can close the gas cylinder 25 and the waste gas cylinder 27 in time when a coke oven fails, and there is no need to close the gas cylinder 25 and the waste gas cylinder 27 of the coke oven by manual operation. In addition, by closing the gas cylinder 25 and the waste gas cylinder 27 of the coke oven, it can be avoided that when a coke oven fails, the switch is immediately powered off, causing the gas cylinder 25 and the waste gas cylinder 27 to remain in place, which poses a safety hazard.

[0050] In this embodiment, step S11: the analog input module 11 collects the real-time position of the gas cylinder 25 cock and the real-time position of the exhaust cylinder 27 cock. Specifically, first, the first detection device 21 detects the real-time position of the gas cylinder 25 cock. The second detection device 23 detects the real-time position of the exhaust cylinder 27 cock. Then the analog input module 11 obtains the real-time position of the gas cylinder 25 cock from the first detection device 21. And the analog input module 11 obtains the real-time position of the exhaust cylinder 27 cock from the second detection device 23.

[0051] In this embodiment, step S13: the controller 15 controls the drive module 13 according to the real-time position of the gas cylinder 25 cock. Specifically, the controller 15 first determines the positional relationship between the gas cylinder 25 cock and the first middle limit position according to the real-time position of the gas cylinder 25 cock. For example, the controller 15 determines whether the gas cylinder 25 cock is located on the left or right side of the first middle limit position. Then the controller 15 determines the predetermined direction of movement of the gas cylinder 25 cock toward the first middle limit position according to the positional relationship between the gas cylinder 25 cock and the first middle limit position. For example, when the gas cylinder 25 cock is located on the left side of the first middle limit position, the predetermined direction is to the right. That is, when the gas cylinder 25 cock is located on the left side of the first middle limit position, the drive module 13 drives the gas cylinder 25 cock to move to the right to reach the first middle limit position. When the gas cylinder 25 cock is located on the right side of the first middle limit position, the predetermined direction is to the left. That is, when the gas cylinder 25 cock is located on the right side of the first intermediate limit position, the driving module 13 drives the gas cylinder 25 cock to move leftward to reach the first intermediate limit position. The first intermediate limit position is the position of the gas cylinder 25 cock when the gas cylinder 25 is closed. Then the controller 15 controls the driving module 13 so that the gas cylinder 25 cock can move in a predetermined direction.

[0052] In this embodiment, step S15: the driving module 13 drives the valve of the gas cylinder 25 to move until the valve of the gas cylinder 25 moves to the first middle limit position.

[0053] Specifically, for example, when the gas cylinder 25 cock is located on the left side of the first middle limit position, the driving module 13 drives the gas cylinder 25 cock to move rightward until the gas cylinder 25 cock stops moving when the gas cylinder 25 cock reaches the first middle limit position. Thus, the gas cylinder 25 is closed. When the gas cylinder 25 cock is located on the right side of the first middle limit position, the driving module 13 drives the gas cylinder 25 cock to move leftward until the gas cylinder 25 cock stops moving when the gas cylinder 25 cock reaches the first middle limit position. Thus, the gas cylinder 25 is closed.

[0054] In this embodiment, step S17: after the gas cylinder 25 is closed, the controller 15 controls the driving module 13 according to the real-time position of the valve of the waste gas cylinder 27. Thus, when a coke oven fails, the controller 15 first closes the gas cylinder 25 and then closes the waste gas cylinder 27. In this way, the gas in the coke oven can be completely burned, thereby completely eliminating the safety hazards of the coke oven.

[0055] Specifically, the controller 15 first determines the positional relationship between the waste gas cylinder 27 plug and the second middle limit position according to the real-time position of the waste gas cylinder 27 plug. For example, the controller 15 determines whether the waste gas cylinder 27 plug is located on the left or right side of the second middle limit position. Then the controller 15 determines the predetermined direction of the waste gas cylinder 27 plug moving toward the second middle limit position according to the positional relationship between the waste gas cylinder 27 plug and the second middle limit position. For example, when the waste gas cylinder 27 plug is located on the left side of the second middle limit position, the predetermined direction is rightward. That is, when the waste gas cylinder 27 plug is located on the left side of the second middle limit position, the drive module 13 drives the waste gas cylinder 27 plug to move to the right to reach the second middle limit position. When the waste gas cylinder 27 plug is located on the right side of the second middle limit position, the predetermined direction is leftward. That is, when the waste gas cylinder 27 plug is located on the right side of the second middle limit position, the drive module 13 drives the waste gas cylinder 27 plug to move to the left to reach the second middle limit position. The second intermediate position is the position of the waste gas cylinder 27 cock when the waste gas cylinder 27 is closed. Then the controller 15 controls the drive module 13 so that the waste gas cylinder 27 cock can move in a predetermined direction.

[0056] Furthermore, after the gas cylinder 25 is closed and a predetermined time has passed, the controller 15 controls the driving module 13 according to the real-time position of the valve of the exhaust cylinder 27. Therefore, in order to further ensure that the gas in the coke oven can be completely burned, the controller 15 needs to wait for a predetermined time after the gas cylinder 25 is closed. The predetermined time can be set according to actual production, and this application does not make any provisions for this.

[0057] In this embodiment, step S19: the driving module 13 drives the valve of the exhaust cylinder 27 to move until the valve of the exhaust cylinder 27 moves to the second middle limit position; wherein the second middle limit position is the position of the valve of the exhaust cylinder 27 when the exhaust cylinder 27 is closed.

[0058] Specifically, for example, when the waste gas cylinder 27 plug is located on the left side of the second middle limit position, the driving module 13 drives the waste gas cylinder 27 plug to move rightward until the waste gas cylinder 27 plug stops moving when the waste gas cylinder 27 reaches the second middle limit position. Thus, the waste gas cylinder 27 is closed. When the waste gas cylinder 27 plug is located on the right side of the second middle limit position, the driving module 13 drives the waste gas cylinder 27 plug to move leftward until the waste gas cylinder 27 plug stops moving when the waste gas cylinder 27 reaches the second middle limit position. Thus, the waste gas cylinder 27 is closed.

[0059] Furthermore, the control method of the switch control device provided in the embodiment of the present application also includes: the controller 15 obtains the switching value of the emergency stop mechanism 29; when the emergency stop mechanism 29 is triggered, the controller 15 controls the driving module 13 according to the real-time position of the valve of the gas cylinder 25, and after the gas cylinder 25 is closed, the controller 15 controls the driving module 13 according to the real-time position of the valve of the exhaust gas cylinder 27.

[0060] That is, when the switch needs to be stopped, or the switch fails or other emergency events occur, the controller 15 controls the driving module 13 according to the real-time position of the gas cylinder 25 plug; the driving module 13 drives the gas cylinder 25 plug to move until the gas cylinder 25 plug moves to the first middle limit position; wherein the first middle limit position is the position of the gas cylinder 25 plug when the gas cylinder 25 is closed; after the gas cylinder 25 is closed, the controller 15 controls the driving module 13 according to the real-time position of the waste gas cylinder 27 plug; the driving module 13 drives the waste gas cylinder 27 plug to move until the waste gas cylinder 27 plug moves to the second middle limit position; wherein the second middle limit position is the position of the waste gas cylinder 27 plug when the waste gas cylinder 27 is closed. Thus, on the one hand, when a coke oven fails, the gas cylinder 25 and / or the waste gas cylinder 27 can be closed in time, and there is no need to close the gas cylinder 25 and the waste gas cylinder 27 of the coke oven by manual operation. On the other hand, by closing the gas cylinder 25 and the waste gas cylinder 27 of the coke oven, it is possible to avoid the situation in which, when a coke oven fails, the switch is immediately powered off, causing the gas cylinder 25 and the waste gas cylinder 27 to remain in place, thereby posing a potential safety hazard.

[0061] Further, when the emergency stop mechanism 29 is not triggered, the controller 15 cyclically executes the following steps:

[0062] Step S111: The controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the gas cylinder 25 to move, thereby closing the gas cylinder 25. Specifically, the controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the gas cylinder 25 to move toward the first middle limit position and stop the valve of the gas cylinder 25 at the first middle limit position. Thus, through step S111, the gas cylinder 25 can be closed to prepare for exchanging exhaust gas and air.

[0063] Step S113: The controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the waste gas cylinder 27 to move, thereby exchanging the waste gas and the air. Specifically, the controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the waste gas cylinder 27 to move away from the second middle limit position first, so as to open the waste gas cylinder 27. Then the controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the waste gas cylinder 27 to move away from the middle limit position, so as to close the waste gas cylinder 27. That is, in step S113, the waste gas cylinder 27 is first opened, and then the waste gas cylinder 27 is closed, so as to achieve the exchange of waste gas and air.

[0064] Step S115: The controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the gas cylinder 25 to move, thereby opening the gas cylinder 25. Specifically, the controller 15 controls the driving module 13 so that the driving module 13 can drive the valve of the gas cylinder 25 to move away from the first middle limit position. Thus, the gas cylinder 25 can be opened through step S115. That is, after step S113, the gas cylinder 25 is opened, and the gas flow directions of the gas, air and exhaust gas can be reversed.

[0065] That is, when the emergency stop mechanism 29 is not triggered, the controller 15 cyclically executes step S111, step S113 and step S115 so that the switch can continuously reverse the gas flow directions of coal gas, air and exhaust gas.

[0066] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0067] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0068] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0069] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0070] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0071] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A control method applied to a switch control device, characterized in that: The switch control device comprises: An analog input module, which is used to collect the real-time position of the gas cylinder and / or exhaust cylinder cock; A driving module, used for driving the movement of the gas cylinder and / or the exhaust cylinder cock; A controller, the controller being connected to the analog input module and the drive module respectively, and the controller being used to control the drive module according to the real-time position of the gas cylinder and / or the waste gas cylinder cock to close the gas cylinder and / or the waste gas cylinder; A switch quantity input module, the switch quantity input module is connected to the controller, the switch quantity input module is used to collect the switch quantity of the gas cylinder and / or the waste gas cylinder, and the controller is also used to control the drive module according to the switch quantity of the gas cylinder and / or the waste gas cylinder, so that the drive module can drive the gas cylinder and / or the waste gas cylinder valve to move according to a predetermined rule; The control method of the switch control device includes: The analog input module collects the real-time position of the gas cylinder cock and the real-time position of the waste gas cylinder cock; The controller controls the driving module according to the real-time position of the gas cylinder cock; The driving module drives the gas cylinder cock to move until the gas cylinder cock moves to a first middle limit position; wherein the first middle limit position is the position of the gas cylinder cock when the gas cylinder is closed; After the gas cylinder is closed, the controller controls the driving module according to the real-time position of the waste gas cylinder cock; The driving module drives the waste gas cylinder plug to move until the waste gas cylinder plug moves to a second middle limit position; wherein the second middle limit position is the position of the waste gas cylinder plug when the waste gas cylinder is closed; The controller obtains the switch value of the emergency stop mechanism; when the emergency stop mechanism is triggered, the controller controls the driving module according to the real-time position of the gas cylinder cock, the driving module drives the gas cylinder cock to move, and after the gas cylinder is closed, the controller controls the driving module according to the real-time position of the waste gas cylinder cock, and the driving module drives the waste gas cylinder cock to move. When the emergency stop mechanism is not triggered, the controller cyclically executes the following steps: The controller controls the driving module so that the driving module can drive the gas cylinder cock to move, thereby closing the gas cylinder; The controller controls the driving module so that the driving module can drive the exhaust cylinder cock to move, thereby exchanging exhaust gas and air; The controller controls the driving module so that the driving module can drive the gas cylinder cock to move, thereby opening the gas cylinder.

2. The control method of the switch control device according to claim 1, characterized in that: The switch quantity input module is also used to collect the switch quantity of the emergency stop mechanism, and when the emergency stop mechanism is not triggered, the controller controls the drive module according to the switch quantity of the gas cylinder and / or the waste gas cylinder, so that the drive module can drive the gas cylinder and / or the waste gas cylinder valve to move according to the predetermined rule, wherein the emergency stop mechanism is used to operate when it is necessary to stop the switch from running.

3. The control method of the switch control device according to claim 2, characterized in that: When the emergency stop mechanism is triggered, the controller controls the driving module according to the real-time position of the gas cylinder and / or the waste gas cylinder cock to close the gas cylinder and / or the waste gas cylinder.

4. The control method of the switch control device according to claim 1, characterized in that: The driving module is a switch output module.

5. The control method of the switch control device according to claim 1, characterized in that: The switch control device includes: a first detection device and a second detection device connected to the analog input module, the first detection device is arranged on the gas cylinder, and the first detection device is used to detect the real-time position of the gas cylinder valve, and the second detection device is arranged on the waste gas cylinder, and the second detection device is used to detect the real-time position of the waste gas cylinder valve.

6. The control method of the switch control device according to claim 5, characterized in that: The first detection device and the second detection device are both displacement sensors.

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