Gate reversing circuit and glass production equipment

Abstract

The utility model provides a flashboard reversing circuit and glass production equipment, the flashboard reversing circuit comprises a control module, the control module is used for closing one of at least two flashboards and opening the other one of the at least two flashboards; the control module comprises at least two main control links and at least one auxiliary control link; the two main control links are respectively used for outputting control signals to control the two gate plates; the main control link is provided with at least one first switch piece; the auxiliary control link is connected in parallel with the first switching element, and under the condition that the first switching element fails, the auxiliary control link is conducted, so that the main control link outputs a control signal; when the first switch piece fails, the auxiliary control link is switched on, so that the main control link is switched on by bypassing the first switch piece, and the control stability of the flashboard reversing circuit on the flashboard is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of glass production, and particularly relates to a gate reversing circuit and a glass production device. BACKGROUND

[0002] In the glass production industry, efficient and stable operation of glass production equipment is crucial to ensure product quality and production efficiency. Among them, the gate reversing of the small furnace air interchanger is an important link in the glass production equipment, which is directly related to the continuity and stability of glass production. In order to realize the timing reversing of the gate, a series of switch components are usually provided in the existing glass production equipment, which logically constitute a control system. Only when all the switch components are in the on state, the reversing control of the gate can be triggered.

[0003] However, due to the inclusion of multiple switch components in the system, failure of any one switch component can cause the entire control system to fail, thereby failing to normally control the reversing of the gate. This not only affects the continuity of glass production, but also may cause damage to the equipment and the occurrence of production accidents, bringing major economic losses and safety risks to the enterprise. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a gate reversing circuit and a glass production device, aiming to solve the problem of low control stability of the gate reversing circuit in the prior art.

[0005] The first aspect of the embodiment of the present application proposes a gate reversing circuit, comprising a control module, the control module is used to close one of at least two gates and open another; the control module comprises:

[0006] At least two main control links, the two main control links are respectively used to output control signals to control the two gates; at least one first switch component is provided on the main control link;

[0007] At least one auxiliary control link is connected in parallel with the first switch component, and in the case of failure of the first switch component, the auxiliary control link is turned on to enable the main control link to output the control signal.

[0008] In some embodiments of the present application, the switch component includes a first sub-switch component and a second sub-switch component; the first sub-switch component and the second sub-switch component are connected in series and connected in parallel with the main control link;

[0009] Alternatively, the auxiliary control link includes a first sub-link and a second sub-link, the first sub-link is connected in parallel with the first sub-switch component, and the second sub-link is connected in parallel with the second sub-switch component.

[0010] In some embodiments of the present application, the first sub-switch is one of a gate stroke protection switch and a field automatic switch, and the second sub-switch is the other of the gate stroke protection switch and the field automatic switch.

[0011] In some embodiments of the present application, a control room automatic switch is further arranged on the main control link, and the control room automatic switch is arranged between the first sub-switch and the second sub-switch.

[0012] In some embodiments of the present application, the control module further comprises a second switch arranged on a parallel connection point of the main control link and the auxiliary control link, and used for selectively accessing the main control link and the auxiliary control link.

[0013] In some embodiments of the present application, the auxiliary control link is arranged in at least two, and the two auxiliary control links are parallel to the switches on the two main control links.

[0014] In some embodiments of the present application, the two auxiliary control links are parallel and are connected to the second switch.

[0015] In some embodiments of the present application, a third switch is arranged on each of the two auxiliary control links, and the third switch is used for controlling the on / off of the corresponding auxiliary control link.

[0016] In some embodiments of the present application, the third switches on the two auxiliary control links are interlocked.

[0017] In some embodiments of the present application, the gate reversing circuit further comprises an alarm module, the alarm module comprises a power-on delay unit, a signal output unit and a power-off delay unit, the signal output unit is used for outputting an alarm signal according to a prompt signal in the case that the gate is not opened to the position, the power-on delay unit is used for delaying the time when the signal output unit receives the prompt signal, and the power-off delay unit is used for prolonging the time when the signal output unit outputs the alarm signal.

[0018] In a second aspect, the present application further provides a glass production equipment, which comprises the above-mentioned gate reversing circuit and a plurality of small furnace devices, each of the small furnace devices is provided with at least two gates and the gate reversing circuit, and the gate reversing circuit is used for controlling the opening / closing of the two gates.

[0019] The gate reversing circuit and the glass production equipment have the beneficial effects that the gate reversing circuit includes a control module, the control module is used for closing one of the at least two gates and opening the other one; the control module includes at least two main control links and at least one auxiliary control link; the two main control links are respectively used for outputting control signals to control the two gates; at least one first switch piece is arranged on the main control link; the auxiliary control link is connected in parallel with the first switch piece, and in the case that the first switch piece fails, the auxiliary control link is turned on to make the main control link output the control signal; in the application, when the first switch piece fails, the auxiliary control link is turned on, so that the main control link is turned on by bypassing the first switch piece, and the control stability of the gate reversing circuit to the gate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A frame structure schematic diagram of the gate reversing circuit provided by an embodiment of the application is provided.

[0021] Figure 2 A frame structure schematic diagram of the gate reversing circuit provided by another embodiment of the application is provided.

[0022] Figure 3 A frame structure schematic diagram of the gate reversing circuit provided by still another embodiment of the application is provided.

[0023] Figure 4 A circuit structure schematic diagram of the gate reversing circuit provided by an embodiment of the application is provided.

[0024] Figure 5 A circuit structure schematic diagram of the gate reversing circuit provided by another embodiment of the application is provided.

[0025] Figure 6 A frame structure schematic diagram of the gate reversing circuit provided by still another embodiment of the application is provided.

[0026] Specific element symbol explanations: 100-main control link, 110-first switch piece, 111-first sub switch piece, second sub switch piece, 200-auxiliary control link, 210-first sub link, 220-second sub link, 300-power-on delay unit, 400-signal output unit, 500-power-off delay unit. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the application clearer, the application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application.

[0028] It is to be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element with intervening elements present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element with intervening elements present.

[0029] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0030] It is to be noted that in the air interchanger reversing control system of the float glass production line, each switch plays a crucial role, and they work together to ensure that the damper can be reversed according to the predetermined time and sequence, thereby maintaining the stability and continuity of the combustion process in the furnace. However, when any one of the switches fails, the entire reversing control system may be paralyzed, resulting in the damper being unable to perform normal reversing operation.

[0031] Specifically, the air interchanger reversing control system usually includes a plurality of switches, which are logically connected in series or parallel to form a complex control network. Only when all switches are in normal state (i.e. the on or off state meets the control requirements), the control system can issue a reversing command to drive the damper to reverse. Once a fault occurs in one of the switches, such as poor contact, short circuit or open circuit, the control system will not be able to receive complete reversing command signals, thus failing to trigger the reversing action of the damper.

[0032] The impact of such a failure on glass production is significant. Since the damper cannot be reversed, the combustion-supporting air cannot enter the furnace smoothly, resulting in insufficient natural gas combustion, black smoke phenomenon, and a significant drop in furnace temperature, which seriously affects the quality and production efficiency of glass products. In addition, the material pile may also change due to temperature fluctuations, further affecting the stability and continuity of production.

[0033] Based on this, the present application improves the traditional damper reversing circuit and glass production equipment.

[0034] Please refer to Figure 1 , Figure 1The schematic diagram of the frame structure of the shutter reversing circuit provided in the embodiment is shown in FIG. 1. The shutter reversing circuit in the embodiment comprises a control module, which is configured to close one of the at least two shutters and open the other. That is, the two shutters on different gas passages are controlled by the control module, and the shutter reversing is realized by switching the opening of different shutters. Specifically, the gas passages can be used to deliver combustion-supporting air or other necessary gas.

[0035] For example, if gas passage A and gas passage B are provided, shutter A is provided on the gas passage A and shutter B is provided on the gas passage B. If it is required to switch the gas flow from passage A to passage B, the control module will close shutter A and open shutter B at the same time, realizing smooth reversing of the gas, that is, the shutter reversing as described above.

[0036] The control module in the embodiment comprises at least two main control links 100 and at least one auxiliary control link. The two main control links 100 are respectively configured to output control signals to control the two shutters. At least one first switching piece 110 is provided on the main control link 100. The auxiliary control link is connected in parallel with the first switching piece 110, and in the case that the first switching piece 110 fails, the auxiliary control link is turned on to enable the main control link 100 to output the control signals.

[0037] It should be noted that the two main control links 100 in the control module are respectively configured to control the opening and closing states of one shutter. The main control link 100 refers to the link through which the control signals output from the control chip flow. The first switching piece 110 can be a relay, a transistor, etc., which is configured to switch the opening and closing states of the shutter according to the control signals. The auxiliary control link is connected in parallel with the first switching piece 110 on the main control link 100, that is, when the first switching piece 110 on the main control link 100 works normally, the auxiliary control link is in an inactive state. When the first switching piece 110 fails, the auxiliary control link can be automatically turned on to replace the task of the main control link 100 and continue to output the control signals to control the shutter.

[0038] It can be understood that, in a normal working state, the main control link 100 receives instructions from the upper control system and controls the opening and closing state of the dam through the first switch piece 110. At this time, the auxiliary control link is in standby state and does not participate in the control process. When it is detected that the first switch piece 110 on the main control link 100 fails (such as open circuit, short circuit or unstable state), the control system immediately activates the auxiliary control link. The auxiliary control link simulates the function of the main control link 100 through the built-in redundant logic and driving elements, and continues to output control signals to control the dam. By introducing the auxiliary control link, the dam reversing control circuit of the embodiment can automatically switch to the backup control path when the first switch piece 110 on the main control link 100 fails, ensuring the continuity and accuracy of the dam reversing. The design of the auxiliary control link enables the system to maintain basic functions when key components fail, reducing the risk of system paralysis due to a single failure point. And by ensuring the continuity and accuracy of the dam reversing, the circuit of the embodiment helps to maintain the stable operation of the float glass production line, reducing the production interruption and potential safety risks caused by the failure of the dam reversing.

[0039] In some embodiments of the present application, please refer to Figure 2 , Figure 2 A frame structure schematic diagram of the dam reversing circuit provided by the embodiment is shown. The switch piece of the embodiment includes a first sub-switch piece 111 and a second sub-switch piece; the first sub-switch piece 111 and the second sub-switch piece are connected in series and are connected in parallel with the main control link 100.

[0040] It can be understood that, in actual application, many switch pieces will be arranged on the main control link 100. The first sub-switch piece 111 and the second sub-switch piece can be different types of switch pieces controlled in different ways. In the embodiments of the present application, as long as any one of the first sub-switch piece 111 and the second sub-switch piece fails, the auxiliary control link is connected to the main control link 100.

[0041] In some embodiments of the present application, please refer to Figure 3 , Figure 3 A frame structure schematic diagram of the dam reversing circuit provided by the embodiment is shown. The auxiliary control link of the embodiment includes a first sub-link and a second sub-link, the first sub-link is connected in parallel with the first sub-switch piece 111, and the second sub-link is connected in parallel with the second sub-switch piece.

[0042] It can be understood that, in the embodiments of the present application, the first sub-link is connected when the first sub-switch piece 111 fails, and the second sub-link is connected when the second sub-switch piece fails.

[0043] In some embodiments of the present application, please refer to Figure 4 , Figure 4A circuit structure schematic diagram of the gate reversing circuit provided by the embodiment is shown; the first sub-switch piece 111 of the embodiment is one of the gate travel protection switch and the field automatic switch, and the second sub-switch piece is the other one of the gate travel protection switch and the field automatic switch.

[0044] As shown in Figure 4 LK11, LK12, LS11 and LS12 are gate travel protection switches, and KA5 and KA6 are field automatic switches. It can be understood that the gate travel protection switch is disconnected when the gate is opened to a preset angle, and after the gate travel protection switch is disconnected, the main control link 100 is disconnected to avoid continuing to output the control signal, thereby controlling the gate at the preset angle. The switch is usually used to monitor the movement state of the gate to ensure that the gate moves within a predetermined travel range. Once the gate exceeds the set travel range, the switch will automatically disconnect to prevent equipment damage or safety accidents. The field automatic switch refers to an automatic control switch in the small furnace field.

[0045] In the process of gate reversing, the gate travel protection switch is prone to failure, causing the gate travel protection switch to be disconnected when the gate has not been opened to the preset angle. At this time, the secondary control link is connected to continue to output the control signal to open the gate. After the field automatic switch fails, the control can be performed through the switch on the secondary control link.

[0046] In some embodiments, the gate travel protection switch can be a multi-point protection switch or a single-point protection switch. The multi-point protection switch refers to having multiple preset angles to limit and protect the travel of the gate through multiple preset angles.

[0047] In some embodiments of the present application, please refer to Figure 4 The control room automatic switch is further arranged on the main control link 100 of the embodiment, and the control room automatic switch piece is arranged between the first sub-switch piece 111 and the second sub-switch piece.

[0048] As shown in Figure 4 KM11 and KM12 are control room automatic switches. It should be explained that the control room controls the conduction and disconnection of the main control link 100 by remotely controlling the control room automatic switch. This remote control function is particularly important in occasions requiring fast response or remote monitoring, which can significantly improve the operation efficiency and safety.

[0049] In some embodiments of the present application, please refer to Figure 4 The control module of the embodiment further includes a second switch piece, which is arranged on the parallel connection point of the main control link 100 and the secondary control link, and is used to selectively connect the main control link 100 and the secondary control link.

[0050] AsFigure 4 As shown, 1SA is the second switching element. It can be understood that the second switching element can be a double-pole single-throw switch. When the first switching element 110 is normal, the second switching element is connected to the main control link 100. When the first switching element 110 fails, the second switching element is connected to the secondary control link.

[0051] In some embodiments, the other end of the second switching element is further provided with a handle control switch (such as...). Figure 4 LS13 (as shown) and emergency stop button (as shown) Figure 4 SE1 in the middle.

[0052] Please refer to the embodiments described in this application. Figure 4 In this embodiment, at least two secondary control links are configured, and the two secondary control links are connected in parallel with the switches on the two main control links 100, respectively.

[0053] In other words, each of the two main control links 100 is equipped with a corresponding secondary control link, which helps to improve the control stability of the two main control links 100.

[0054] In some embodiments of this application, two secondary control links are connected in parallel and are shared by a second switch.

[0055] In some embodiments of this application, a third switch is provided on each of the two secondary control links, and the third switch is used to control the on / off state of the corresponding secondary control link.

[0056] like Figure 4 As shown, 1KA is the third switching element. The conduction and cutoff of the secondary control link are controlled by adjusting the third switching element.

[0057] Please refer to the embodiments described in this application. Figure 4 , Figure 4 SB1 and SB2 are the third switching devices; the third switching devices on the two secondary control links are interlocked.

[0058] Please continue reading. Figure 4 , Figure 4 The system is equipped with two first sub-links and two second sub-links. The first sub-links are connected in parallel with the field automatic switch, and the second sub-links are connected in parallel with the gate travel protection switch. Figure 5 On the left side, there are two interlocked 1SAs, one of which connects to the two first sub-links, and the other 1SA connects to the main control link 100.

[0059] Please see Figure 5 , Figure 6The circuit structure schematic diagram of the gate reversing circuit provided by the embodiment is shown. In the embodiment, the warning lights are taken as HB21 and HG21 as examples; the gate reversing circuit in the embodiment further comprises a warning light, and the warning light is used to output a light signal according to the signal output condition of the main control circuit.

[0060] In some embodiments, an indicator light is further arranged between the second switch and the handle switch, and is used to indicate the state of the handle switch and the emergency stop button.

[0061] In some embodiments of the present application, please participate Figure 6 , ​ The circuit structure schematic diagram of the gate reversing circuit provided by the embodiment is shown. The gate reversing circuit in the embodiment further comprises an alarm module, and the alarm module comprises a power-on delay unit, a signal output unit and a power-off delay unit, the signal output unit is used to output an alarm signal according to a prompt signal in the case that the gate is not opened to the position, the power-on delay unit is used to delay the time when the signal output unit receives the prompt signal, and the power-off delay unit is used to prolong the time when the signal output unit outputs the alarm signal.

[0062] Further, in order to better implement the gate reversing circuit in any of the above embodiments, on the basis of the above gate reversing circuit, the present application further provides a glass production equipment, which comprises the above gate reversing circuit and a plurality of small furnace devices, at least two gates and the gate reversing circuit are arranged in each small furnace device, and the gate reversing circuit is used to control the opening / closing of the two gates.

[0063] In some embodiments, the small furnace devices are 8.

[0064] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the related description of other embodiments.

[0065] The above has described the basic concept, and it is obvious that the above detailed disclosure is only taken as an example and does not constitute a limitation on the present application for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0066] Also, the use of "a" or "an" to describe an element of the application is merely for convenience and to aid in the understanding of the application. Unless otherwise stated, the use of "a" or "an" is not intended to limit the number of elements to one.

[0067] Similarly, it is to be noticed that the term "comprising", used in the description, is not intended to exclude other elements or steps. It is to be understood that the term "comprising" is not intended to refer to a closed or limited set of elements or steps. It is to be further understood that the use of a conjunction "or" is intended to indicate a non-exclusive "or", that is, a disjunctive word meaning "one or the other, but not both".

[0068] The above embodiments are only used to illustrate the technical solutions of the present application, but not intended to limit the present application; and the above embodiments are described in detail with reference to the foregoing embodiments, and those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent replacements; and the modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A gate commutation circuit, characterized by The control module is used for closing one of the at least two gates and opening the other one, and comprises: At least two main control links respectively used for outputting control signals to control the two gates, and at least one first switch element is arranged on the main control links; At least one auxiliary control link is connected in parallel with the first switch element, and in the case that the first switch element fails, the auxiliary control link is turned on to make the main control link output the control signals.

2. The gate commutation circuit of claim 1, wherein, The switch element comprises a first sub-switch element and a second sub-switch element, and the first sub-switch element and the second sub-switch element are connected in series and connected in parallel with the main control link. Alternatively, the auxiliary control link comprises a first sub-link and a second sub-link, the first sub-link is connected in parallel with the first sub-switch element, and the second sub-link is connected in parallel with the second sub-switch element.

3. The gate commutation circuit of claim 2, wherein, The first sub-switch element is one of a gate stroke protection switch and a field automatic switch, and the second sub-switch element is the other one of the gate stroke protection switch and the field automatic switch.

4. The gate commutation circuit of claim 3, wherein, The main control link is further provided with a control room automatic switch, and the control room automatic switch is arranged between the first sub-switch element and the second sub-switch element.

5. The gate commutation circuit of claim 2, wherein, The control module further comprises a second switch element, the second switch element is arranged on the parallel connection point of the main control link and the auxiliary control link, and is used for selectively accessing the main control link and the auxiliary control link.

6. The gate commutation circuit of claim 5, wherein, The auxiliary control link is arranged as at least two, and two auxiliary control links are connected in parallel with the switch elements on the two main control links.

7. The gate commutation circuit of claim 6, wherein, The two auxiliary control links are connected in parallel and are connected to the second switch element.

8. The gate commutation circuit according to any one of claims 1 to 7, characterized in that Each of the two auxiliary control links is provided with a third switch element, and the third switch element is used for controlling the on / off of the corresponding auxiliary control link.

9. The gate commutation circuit of claim 8, wherein, The third switch elements on the two auxiliary control links are interlocked.

10. The gate commutation circuit of claim 1, wherein, The gate reversing circuit further comprises an alarm module, the alarm module comprises a power-on delay unit, a signal output unit and a power-off delay unit, the signal output unit is used for outputting an alarm signal according to a prompt signal in the case that the gate is not opened to the position, the power-on delay unit is used for delaying the time when the signal output unit receives the prompt signal, and the power-off delay unit is used for prolonging the time when the signal output unit outputs the alarm signal.

11. A glass production apparatus characterized by, The glass production equipment comprises the gate reversing circuit and a plurality of small furnace devices, at least two gates and the gate reversing circuit are arranged in each small furnace device, and the gate reversing circuit is used for controlling the opening / closing of the two gates.

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