Gate reversing circuit and glass production equipment

Abstract

The invention 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 present application belongs to the technical field of glass production, and in particular relates to a gate reversing circuit and glass production equipment. Background Art

[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 reversal of the small furnace air exchange machine is an important link in the glass production equipment, which is directly related to the continuity and stability of glass production. In order to achieve the timed reversal of the gate, a series of switch components are usually set in the existing glass production equipment. These switch components logically constitute a control system. Only when all the switch components are in the on state can the reversal control of the gate be triggered.

[0003] However, since the system contains multiple switch components, the failure of any switch component may cause the entire control system to fail, making it impossible to perform normal switching control on the gate. This will not only affect the continuity of glass production, but may also cause equipment damage and production accidents, bringing significant economic losses and safety risks to the company. Summary of the invention

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

[0005] A first aspect of an embodiment of the present application provides a gate reversing circuit, comprising a control module, wherein the control module is used to close one of at least two gates and to open the other; 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 element is arranged on the main control link;

[0007] At least one secondary control link is connected in parallel with the first switch element, and in the case where the first switch element fails, the secondary 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 element includes a first sub-switch element and a second sub-switch element; the first sub-switch element and the second sub-switch element are connected in series and then connected in parallel with the main control link;

[0009] Alternatively, the secondary 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 element, and the second sub-link is connected in parallel with the second sub-switch element.

[0010] In some embodiments of the present application, the first sub-switch component is one of a gate travel protection switch and an on-site automatic switch, and the second sub-switch component is the other of the gate travel protection switch and the on-site automatic switch.

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

[0012] In some embodiments of the present application, the control module further includes a second switch element, which is disposed at a parallel connection point between the main control link and the secondary control link and is used to selectively connect the main control link and the secondary control link.

[0013] In some embodiments of the present application, at least two secondary control links are provided, and the two secondary control links are respectively connected in parallel with the switch elements on the two main control links.

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

[0015] In some embodiments of the present application, a third switch element is provided on each of the two secondary control links, and the third switch element is used to control the on / off of the corresponding secondary control link.

[0016] In some embodiments of the present application, the third switch elements on the two secondary control links are interlocked.

[0017] In some embodiments of the present application, the gate switching circuit also includes an alarm module, which includes 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 when the gate is not fully opened, 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 extend the time when the signal output unit outputs the alarm signal.

[0018] In the second aspect, the present application also provides a glass production equipment, which includes the gate reversing circuit and multiple small furnace devices as described above, 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 to control the opening / closing of the two gates.

[0019] The beneficial effects of the present application are as follows: in the gate reversing circuit and glass production equipment of the present application, the gate reversing circuit includes a control module, the control module is used to close one of at least two gates and to open the other; the control module includes at least two main control links and at least one sub-control link; the two main control links are respectively used to output control signals to control the two gates; at least one first switch element is arranged on the main control link; the sub-control link is connected in parallel with the first switch element, and in the event of failure of the first switch element, the sub-control link is turned on to enable the main control link to output a control signal; in the present application, when the first switch element fails, the sub-control link is turned on, thereby realizing the bypassing of the first switch element to turn on the main control link, which is beneficial to improving the control stability of the gate reversing circuit over the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the framework structure of a gate reversing circuit provided in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of the framework structure of a gate reversing circuit provided in another embodiment of the present application;

[0022] Figure 3 A schematic diagram of the framework structure of a gate reversing circuit provided in yet another embodiment of the present application;

[0023] Figure 4 A schematic diagram of the circuit structure of a gate reversing circuit provided in one embodiment of the present application;

[0024] Figure 5 A schematic diagram of the circuit structure of a gate reversing circuit provided in another embodiment of the present application;

[0025] Figure 6 A schematic diagram of the framework structure of a gate reversing circuit provided in yet another embodiment of the present application.

[0026] Specific element symbol description: 100-main control link, 110-first switch element, 111-first sub-switch element, second sub-switch element, 200-secondary 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 to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should 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. 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.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] It is important to know that in the air exchange machine reversing control system of the float glass production line, each switch plays a vital role. They work together to ensure that the gate can be reversed according to the predetermined time and sequence, thereby maintaining the stability and continuity of the combustion process in the melting furnace. However, when any of the switch components fails, the entire reversing control system may be paralyzed, causing the gate to be unable to perform normal reversing operations.

[0031] Specifically, the air exchange reversing control system usually contains multiple switch components, which are logically connected in series or in parallel to form a complex control network. Only when all the switch components are in a normal state (i.e., the on or off state meets the control requirements) can the control system issue a reversing command to drive the gate to reversing. Once a switch component fails, such as poor contact, short circuit or open circuit, the control system will not be able to receive the complete reversing command signal, and thus cannot trigger the reversing action of the gate.

[0032] This failure has a significant impact on glass production. Since the gate cannot be reversed, the combustion air will not be able to enter the kiln smoothly, resulting in incomplete combustion of natural gas, the generation of black smoke, and a significant drop in the temperature in the kiln, which seriously affects the quality of glass products and production efficiency. In addition, the stockpile 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 gate reversing circuit and glass production equipment.

[0034] See also Figure 1 , Figure 1The schematic diagram of the framework structure of the gate reversing circuit provided for this embodiment; the gate reversing circuit of this embodiment includes a control module, which is used to close one of at least two gates and to open the other. That is, the two gates on different gas channels are controlled by the control module, and the gate reversal is achieved by switching different gates to open. Specifically. The gas channel can be used to transport combustion-supporting air or other necessary gases.

[0035] For example, if a gas channel A and a gas channel B are provided, a gate A is provided on the gas channel A, and a gate B is provided on the gas channel B, if it is necessary to switch the gas flow from channel A to channel B, the control module will close the gate A and open the gate B at the same time to achieve smooth reversal of the gas, that is, to achieve the above-mentioned gate reversal.

[0036] The control module of this embodiment includes at least two main control links 100 and at least one sub-control link; the two main control links 100 are respectively used to output control signals to control two gates; at least one first switch element 110 is arranged on the main control link 100; at least one sub-control link is connected in parallel with the first switch element 110, and when the first switch element 110 fails, the sub-control link is turned on so that the main control link 100 outputs a control signal.

[0037] It should be explained that the two main control links 100 in the control module are respectively loaded to control the opening and closing state of a gate plate, and the main control link 100 refers to the link through which the control signal output from the control chip flows. The first switch 110 can be a relay, a transistor, etc., which is used to switch the opening and closing state of the gate plate according to the control signal. The secondary control link is connected in parallel with the first switch 110 on the main control link 100, that is, when the first switch 110 on the main control link 100 works normally, the secondary control link is in an inactive state; and when the first switch 110 fails, the secondary control link can automatically turn on, take over the task of the main control link 100, and continue to output control signals to control the gate plate.

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

[0039] In some embodiments of this application, please refer to Figure 2 , Figure 2 The schematic diagram of the framework structure of the gate commutation circuit provided in this embodiment is shown. The switch element in this embodiment includes a first sub-switch element 111 and a second sub-switch element; the first sub-switch element 111 and the second sub-switch element are connected in series and then connected in parallel with the main control link 100 .

[0040] It is understandable that, in actual application, many switch components are provided on the main control link 100. The first sub-switch component 111 and the second sub-switch component can be switch components controlled in different ways or of different types. In the embodiment of the present application, as long as any one of the first sub-switch component 111 and the second sub-switch component fails, the secondary control link is connected to the main control link 100.

[0041] In some embodiments of this application, please refer to Figure 3 , Figure 3 The schematic diagram of the framework structure of the gate commutation circuit provided in this embodiment is shown. The secondary control link in this embodiment includes a first sub-link and a second sub-link, the first sub-link is connected in parallel with the first sub-switch element 111, and the second sub-link is connected in parallel with the second sub-switch element.

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

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

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

[0045] During the gate reversing process, the gate stroke protection switch is prone to failure, resulting in the gate stroke protection switch being disconnected before the gate is 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 on-site automatic switch fails, it can be controlled by 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 a switch with multiple preset angles, which can limit the travel of the gate through multiple preset angles.

[0047] In some embodiments of this application, please continue to refer to Figure 4 In this embodiment, a control room automatic switch is also provided on the main control link 100, and the control room automatic switch component is provided between the first sub-switch component 111 and the second sub-switch component.

[0048] like Figure 4 As shown, KM11 and KM12 are control room automatic switches. It should be explained that the control room controls the on and off of the main control link 100 by remotely controlling the control room automatic switch. This remote control function is particularly important in situations where rapid response or remote monitoring is required, and can significantly improve operational efficiency and safety.

[0049] In some embodiments of this application, please continue to refer to Figure 4 The control module of this embodiment also includes a second switch element, which is arranged at the parallel connection point between the main control link 100 and the auxiliary control link, and is used to selectively connect the main control link 100 and the auxiliary control link.

[0050] like Figure 4 As shown, 1SA is the second switch. It is understandable that the second switch may be a double-pole single-throw switch, and when the first switch 110 is normal, the second switch is connected to the main control link 100, and when the first switch 110 fails, the second switch is connected to the secondary control link.

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

[0052] In some embodiments of this application, please continue to refer to Figure 4 In this embodiment, at least two secondary control links are provided, and the two secondary control links are respectively connected in parallel with the switch elements on the two main control links 100 .

[0053] That is to say, the two main control links 100 are each correspondingly provided with a secondary control link, which is beneficial to improving the control stability of the two main control links 100 .

[0054] In some embodiments of the present application, two secondary control links are connected in parallel and are commonly connected to the second switch element.

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

[0056] like Figure 4 As shown, 1KA is the third switch element. The on and off of the secondary control link is controlled by adjusting the third switch element.

[0057] In some embodiments of this application, please continue to refer to Figure 4 , Figure 4 SB1 and SB2 are third switch elements; the third switch elements on the two secondary control links are interlocked.

[0058] Please continue reading Figure 4 , Figure 4 Two first sub-links and two second sub-links are provided in the invention. The first sub-link is connected in parallel with the on-site automatic switch, and the second sub-link is connected in parallel with the gate travel protection switch. Figure 4 Two interlocking ISAs are arranged on the middle left side, and one of the ISAs is connected to the two first sub-links, and the other ISAs is connected to the main control link 100 .

[0059] See also Figure 5 , Figure 5The schematic diagram of the circuit structure of the gate reversing circuit provided in this embodiment is shown. In this embodiment, the warning lights HB21 and HG21 are taken as examples; the gate reversing circuit in this embodiment also includes a warning light, which is used to output a light signal according to the signal output of the main control circuit.

[0060] In some embodiments, an indicator light is further provided and connected between the second switch element and the handle switch to indicate the status of the handle switch and the emergency stop button.

[0061] In some examples of this application, please participate Figure 6 , Figure 6 The schematic diagram of the circuit structure of the gate reversing circuit provided in this embodiment is shown. The gate reversing circuit in this embodiment also includes an alarm module, which includes 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 when the gate is not fully opened, 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 extend the time when the signal output unit outputs the alarm signal.

[0062] Furthermore, in order to better implement the gate reversing circuit in any of the above-mentioned embodiments, on the basis of the above-mentioned gate reversing circuit, the present application also provides a glass production equipment, the glass production equipment includes the above-mentioned gate reversing circuit and multiple small furnace devices, each small furnace device is provided with at least two gates and a gate reversing circuit, and the gate reversing circuit is used to control the opening / closing of the two gates.

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

[0064] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0065] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0066] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0067] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0068] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A gate commutation circuit, characterized in that: The invention comprises a control module, wherein the control module is used to close one of at least two gates and to open the other gate; the control module comprises: 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 element is arranged on the main control link; At least one secondary control link is connected in parallel with the first switch element, and in the case where the first switch element fails, the secondary control link is turned on to enable the main control link to output the control signal.

2. The gate commutation circuit according to claim 1, characterized in that: The switch element comprises a first sub-switch element and a second sub-switch element; the first sub-switch element and the second sub-switch element are connected in series and then connected in parallel with the main control link; Alternatively, the secondary 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 element, and the second sub-link is connected in parallel with the second sub-switch element.

3. The gate reversing circuit according to claim 2, characterized in that: The first sub-switch component is one of a gate stroke protection switch and an on-site automatic switch, and the second sub-switch component is the other of the gate stroke protection switch and the on-site automatic switch.

4. The gate reversing circuit according to claim 3, characterized in that: The main control link is also provided with a control room automatic switch, and the control room automatic switch component is arranged between the first sub-switch component and the second sub-switch component.

5. The gate commutation circuit according to claim 2, characterized in that: The control module further includes a second switch element, which is disposed at a parallel connection point between the main control link and the secondary control link and is used for selectively connecting the main control link and the secondary control link.

6. The gate commutation circuit according to claim 5, characterized in that: At least two secondary control links are provided, and the two secondary control links are respectively connected in parallel with the switch elements on the two main control links.

7. The gate commutation circuit according to claim 6, characterized in that: The two auxiliary control links are connected in parallel and are commonly connected to the second switch element.

8. The gate commutation circuit according to any one of claims 1 to 7, characterized in that: A third switch element is provided on each of the two secondary control links, and the third switch element is used to control the on / off of the corresponding secondary control link.

9. The gate commutation circuit according to claim 8, characterized in that: The third switch elements on the two secondary control links are interlocked.

10. The gate commutation circuit according to claim 1, characterized in that: The gate reversing circuit also includes an alarm module, which includes 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 when the gate is not fully opened, 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 extend the time when the signal output unit outputs the alarm signal.

11. A glass production equipment, characterized in that: The glass production equipment includes a gate reversing circuit as described in any one of claims 1 to 10 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 to control the opening / closing of the two gates.

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