A control cabinet applied to an annealing furnace

Abstract

The application discloses a control cabinet applied to an annealing furnace, which comprises a cabinet shell, an electronic part and a cooling part. The cabinet shell comprises a back plate and first and second side plates oppositely arranged along the width direction. The first side plate is provided with an air inlet and an air outlet. The first and second side plates are connected with the back plate. The electronic part is installed on the back plate and is arranged in a spaced mode with the bottom plate of the cabinet shell. The cooling part is installed outside the cabinet shell and is provided with a cold air outlet and a hot air inlet. The cold air outlet is communicated with the air inlet, and the air outlet is communicated with the hot air inlet. A flow guide plate is obliquely arranged between the first side plate and the electronic part. The upper end of the flow guide plate is connected with the first side plate and is located above the air inlet. The lower end of the flow guide plate is lower than the air inlet and is away from the first side plate. In the width direction, the flow guide plate is arranged in a spaced mode with the electronic part.

Description

Technical Field

[0001] This application belongs to the field of control cabinet technology, specifically relating to a control cabinet used in annealing furnaces. Background Technology

[0002] The core process equipment on the silicon steel heat treatment production line is the continuous annealing furnace. According to the layout of the production line, the commonly used horizontal continuous annealing furnace is generally designed on a 6-8 meter steel structure platform. During normal production, the temperature inside the annealing furnace can reach about 1050℃. Since the annealing furnace is installed indoors, the temperature around the furnace can reach 50℃~70℃ in summer. Depending on the instrumentation and control requirements, 3-7 remote IO cabinets, or control cabinets, need to be configured around the furnace for field signal feedback and control output. The remote IO cabinets contain a large number of integrated circuits, electronic modules, capacitors, resistors and other electronic components. In such a high-temperature environment, it is necessary to consider cooling the inside of the cabinets.

[0003] In existing technology, a cooling air conditioner is installed outside the control cabinet to cool the environment inside the control cabinet. When the temperature sensor detects that the temperature inside the control cabinet has reached the set value, the cooling air conditioner starts to send cold air into the control cabinet. Due to the limited space inside the control cabinet, the cold air blows directly onto the electronic components. In summer, when the air humidity is relatively high, the exchange of hot and cold air will cause condensation to form at the air outlet of the cooling air conditioner, which will enter the control cabinet and remain on the wiring terminals and other electronic components near the air inlet of the control cabinet, causing short circuits and burning out of electronic components. Summary of the Invention

[0004] To address the technical problem that electronic components may be damaged by condensation, this application provides a control cabinet for use in annealing furnaces.

[0005] This application provides a control cabinet for an annealing furnace, comprising:

[0006] The cabinet shell includes a back panel and a first side panel and a second side panel arranged opposite to each other along the width direction. The first side panel is provided with an air inlet and an air outlet. Both the first side panel and the second side panel are connected to the back panel.

[0007] Electronic components are mounted on the back panel and are spaced apart from the bottom plate of the cabinet.

[0008] A cooling component is installed outside the cabinet and is provided with a cold air outlet and a hot air inlet. The cold air outlet is connected to the air inlet, and the air outlet is connected to the hot air inlet.

[0009] A deflector plate is inclinedly disposed between the first side plate and the electronic component. The upper end of the deflector plate is connected to the first side plate and located above the air inlet. The lower end of the deflector plate is lower than the air inlet and away from the first side plate. Along the width direction, the deflector plate and the electronic component are arranged at intervals.

[0010] In some embodiments, the deflector extends from the electronics in a direction away from the backplate.

[0011] In some embodiments, the device also includes a conduit and a cable located within the conduit, the conduit being mounted on the backplate and wrapped around the electronics, with the electronics extending out of the conduit in a direction away from the backplate.

[0012] The guide plate is located between the first side plate and the conduit.

[0013] In some implementations, the size of the baffle is larger than the size of the air inlet along the depth direction.

[0014] In some embodiments, along the height direction, the guide plate includes a mounting portion, a first guide portion, and a second guide portion arranged sequentially;

[0015] The mounting part is connected to the first side plate, the first guide part is inclined, and the second guide part is vertical.

[0016] In some embodiments, the mounting portion is screwed to the first side plate.

[0017] In some embodiments, the guide plate is provided with a water receiving component, the water receiving component is provided with a water receiving groove, the water receiving component is installed on the second guide portion, and the groove opening of the water receiving groove is located below the second guide portion.

[0018] In some embodiments, the water receiving component is screwed to the second flow guide.

[0019] In some embodiments, the deflector includes a plate body and an insulating layer covering the plate body.

[0020] In some embodiments, the air inlet is rectangular, and along the depth direction, the air inlet partially overlaps with the electronic component.

[0021] The air outlet is located above the guide plate; the air outlet is circular and is offset from the electronic component along the depth direction.

[0022] According to the embodiments of this application, the control cabinet for an annealing furnace provided in this application has a baffle plate located between the first side plate and the electronic components. The upper end of the baffle plate is connected to the first side plate and is located above the air inlet, while the lower end is lower than the air inlet and away from the first side plate. This creates a flow guiding space between the baffle plate and the first side plate. Cold air entering from the air inlet can only move downwards to the lower side of the baffle plate due to the obstruction of the baffle plate, and then turn upwards. This prolongs the movement path of the cold air in the control cabinet, allowing it to contact the electronic components later. Most of the condensate appears on the side of the baffle plate near the first side plate and then falls down the baffle plate to the bottom. There is a gap between the electronic components and the bottom plate of the cabinet, so the dripping condensate will not stick to the electronic components. Because the baffle plate and the electronic components are arranged at intervals along the width direction, the condensate will not move to the electronic components, allowing the electronic components to remain dry and operate stably. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a control cabinet according to this application is shown.

[0024] Figure 2 A side view of the control cabinet is shown after the cooling components have been removed.

[0025] Figure 3 The front view of the deflector is shown.

[0026] Figure 4 A side view of the deflector is shown.

[0027] Explanation of reference numerals in the attached figures:

[0028] 110 - Cabinet shell, 111 - First side panel, 1111 - Air inlet, 1112 - Air outlet, 112 - Second side panel, 113 - Back panel, 114 - Top panel, 115 - Bottom panel; 120 - Electronic components, 121 - Electronic components; 130 - Conduit, 140 - Cooling components, 141 - Cold air outlet, 142 - Hot air inlet, 150 - Guide plate, 151 - Mounting part, 152 - First guide part, 153 - Second guide part, 154 - Water receiving part. Detailed Implementation

[0029] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] According to a first aspect of this application, a control cabinet for an annealing furnace is provided, which can both guide cold air and condensate, thereby reducing the risk of damage to electronic components caused by condensate.

[0031] This application is described below with reference to the accompanying drawings and specific embodiments:

[0032] Please see Figure 1 as well as Figure 2 The control cabinet for an annealing furnace provided in this application embodiment includes a cabinet shell 110, electronic components 120, cooling components 140, and a baffle plate 150. The cabinet 110 includes a back panel 113 and a first side panel 111 and a second side panel 112 arranged opposite to each other along the width direction. The first side panel 111 is provided with an air inlet 1111 and an air outlet 1112. Both the first side panel 111 and the second side panel 112 are connected to the back panel 113. Electronic components 120 are installed on the back panel 113. Cooling components 140 are installed outside the cabinet 110 and are provided with a cold air outlet 141 and a hot air inlet 142. The cold air outlet 141 is connected to the air inlet 1111, and the air outlet 1112 is connected to the hot air inlet 142. A guide plate 150 is inclinedly arranged between the first side panel 111 and the electronic components 120. The upper end of the guide plate 150 is connected to the side panel and is located above the air inlet 1111. The lower end of the guide plate 150 is lower than the air inlet 1111 and away from the first side panel 111.

[0033] The control cabinet is used for centralized management and conversion of input and output signals in the continuous annealing furnace production site. It primarily receives signals (inputs) from sensors, switches, and other devices, and transmits these signals to PLCs, DCS systems, etc., for processing. Simultaneously, it outputs control signals according to instructions from the PLC and DCS systems, driving actuators (such as motors and solenoid valves) to perform actions.

[0034] The control cabinet contains electronic components 120, which include multiple electronic elements 121, also known as electrical devices, such as contactors, electronic modules, power modules, and PLCs. These electronic elements 121 are mounted on the back panel 113 of the cabinet housing 110.

[0035] The cooling component 140 can provide a cooling medium, such as cool air, and can also draw in hot air from the cabinet 110 to achieve gas circulation within the control cabinet, remove heat, and lower the temperature of the electronic component 120, allowing the electronic component 120 to operate at a suitable temperature. The cooling component 140 can be an air conditioner, evaporative cooler, or any other device that can provide a cooling medium and draw in hot air from the cabinet 110.

[0036] The deflector plate 150 is located between the first side plate 111 and the electronic component 120. The upper end of the deflector plate 150 is connected to the first side plate 111 and is located above the air inlet 1111. The lower end is lower than the air inlet 1111 and away from the first side plate 111. In this way, a deflector space is formed between the deflector plate 150 and the first side plate 111. The cold air entering from the air inlet 1111 can only move downward to the lower side of the deflector plate 150 due to the obstruction of the deflector plate 150, and then turn upward. This prolongs the movement path of the cold air in the control cabinet, so that the cold air contacts the electronic component 121 later. Most of the condensate appears on the side of the deflector plate 150 near the first side plate 111, and then falls down to the bottom along the deflector plate 150. There is a gap between the electronic component 120 and the bottom plate 115 of the cabinet 110, so the dripping condensate will not stick to the electronic component 120. Since the baffle plate 150 and the electronic component 120 are arranged at intervals along the width direction, the condensate will not move to the electronic component 120, so that the electronic component 120 can remain dry and operate stably.

[0037] The enclosure 110 serves as the protection structure for the electronic component 120 and its mounting. Please refer to [link / reference needed]. Figure 1 The cabinet 110 also includes a top plate 114, a bottom plate 115, and a door panel (not shown in the figure). The top plate 114 and the bottom plate 115 are arranged at intervals along the height direction. The top plate 114 is connected to the back plate 113, the first side plate 111, and the second side plate 112. The bottom plate 115 is connected to the back plate 113, the first side plate 111, and the second side plate 112. The top plate 114, the bottom plate 115, the back plate 113, the first side plate 111, and the second side plate 112 together form a cabinet cavity with an opening. The door panel can be opened and closed to close or open the opening for maintenance and other operations on the internal electronic components 120.

[0038] Please see Figure 1 The control cabinet also includes a conduit 130 and cables (not shown) located within the conduit 130. The conduit 130 is mounted on a back panel 113 and wound around the electronic components 120; the electronic components 120 extend out of the conduit 130 in a direction away from the back panel 113. The conduit 130 is commonly referred to as a cable tray, and is typically selected with a rectangular cross-section to protect the cables. Generally, different electronic components 121 are electrically connected through the cables within the conduit 130 to achieve signal transmission.

[0039] The control cabinet is a rectangular cabinet. For ease of explanation, we will use the perspective of standing in front of the control cabinet as the reference point. We will define the direction from front to back as the depth direction, the direction from left to right as the width direction, and the direction from top to bottom as the height direction. After understanding the depth, width, and height directions of the control cabinet, we will continue to introduce the control cabinet further.

[0040] In some embodiments, please refer to Figure 2 Along the direction away from the back panel 113, the deflector 150 extends out of the electronic component 120. That is, the side of the deflector 150 closest to the door panel protrudes from the side of the electronic component 120 closest to the door panel. After cold air enters through the air inlet 1111, in addition to moving downwards along the deflector 150, some cold air moves towards the door panel. After reaching the side of the deflector 150 closest to the door panel, the cold air turns back and moves towards the back panel 113. The deflector 150 extends out of the electronic component 120 along the direction away from the back panel 113, thus shielding the side of the electronic component 120 closest to the door panel, extending the path of this portion of cold air to the electronic component 120, and reducing the accumulation of condensate on the electronic component 121. In other embodiments, the deflector 150 can also be flush with the electronic component 120 in a direction away from the back panel 113, which can still reduce condensation on the electronic component 121 corresponding to the air inlet 1111.

[0041] In some embodiments, please refer to Figure 1 The guide plate 150 is located between the first side plate 111 and the conduit 130. The conduit 130 has heat dissipation holes; therefore, placing the guide plate 150 between the first side plate 111 and the conduit 130 reduces condensation on the conduit 130, lowering the risk of condensation entering the conduit 130 through the heat dissipation holes. In other embodiments, the guide plate 150 corresponds to the conduit 130 along the width direction, and the conduit 130 does not have heat dissipation holes, thus still achieving protection for the electronic component 121.

[0042] In some embodiments, the size of the baffle 150 is larger than the size of the air inlet 1111 along the depth direction. Thus, both ends of the baffle 150 extend beyond the air inlet 1111 along the depth direction, guiding all the cold air and reducing condensation on the electronic component 121. In other embodiments, one end of the baffle 150 extends beyond the air inlet 1111 along the depth direction, also guiding the cold air and reducing condensation on the electronic component 121.

[0043] In some embodiments, please refer to Figure 3 as well as Figure 4 Along the height direction, the guide plate 150 includes a mounting part 151, a first guide part 152, and a second guide part 153 arranged sequentially; the mounting part 151 is connected to the first side plate 111, the first guide part 152 is inclined, the second guide part 153 is vertically arranged, the mounting part 151 constitutes the upper end of the guide plate 150, and the bottom side of the second guide part 153 constitutes the lower end.

[0044] The vertical arrangement of the second guide section 153 can reduce the size of the guide plate 150 in the width direction, and enable the installation of the guide plate 150 in a limited space.

[0045] In some embodiments, the mounting portion 151 can be screwed to the first side plate 111 or welded to it; this application does not impose any limitations. A screwed connection facilitates disassembly.

[0046] In some embodiments, please refer to Figure 3 as well as Figure 4 The guide plate 150 is provided with a water receiving component 154, which has a water receiving groove. The water receiving component 154 is installed on the second guide section 153, and the opening of the water receiving groove is located below the second guide section 153. The water receiving component 154 collects the condensate that accumulates along the guide plate 150, preventing it from dripping onto the base plate 115 and causing corrosion. In some embodiments, a conduit can be provided, communicating with the water receiving groove and extending outside the control cabinet to drain the condensate collected in the groove. The water receiving component 154 and the second guide section 153 can be screwed together or welded; this application does not impose any limitations.

[0047] In some embodiments, the deflector 150 includes a plate body and an insulating layer (not shown) covering the plate body. The plate body can be made of steel plate, which has high strength, good stability, and low cost. However, steel plate is easily corroded by condensate. The insulating layer can prevent the plate body from contacting condensate, thereby improving the service life of the deflector 150. The insulating layer can be an anti-corrosion layer, such as by coating with paint, or it can be a plastic layer; this application does not impose any limitations.

[0048] In some embodiments, please refer to Figure 2 The air inlet 1111 is located above the baffle 150, allowing the hot air generated after the cold air cools the electronic components 121 to be discharged from above, conforming to the upward movement trend of hot air. In some embodiments, the air inlet 1111 can also be arranged on the top plate 114, which can also achieve the discharge of hot air. The cooling component 140 may be equipped with an exhaust fan to discharge hot air from the control cabinet.

[0049] In some embodiments, the air inlet 1111 is rectangular, matching the shape of the cold air outlet 141 of the cooling component 140, thereby improving the cold air flow effect. In some embodiments, along the depth direction, the air inlet 1111 partially overlaps with the electronic component 120. The air outlet 1112 is circular, matching the hot air inlet 142 of the cooling component 140, thereby improving the suction effect. Along the depth direction, the air outlet 1112 is staggered from the electronic component 120, reducing heat exchange between the hot airflow and the electronic component 121.

[0050] The control cabinet provided in this application features a zigzag-shaped baffle 150 with a ramp to better guide cold air. A water collection component 154 is installed below the baffle 150. When the cooling component 140 is activated, the cooling air blows directly onto the baffle 150, causing condensation to form along the baffle 150 and dripping down into the water collection trough of the water collection component 154. Therefore, the baffle 150 can guide both cold air and condensate, offering multiple functions. After installation, this utility model can prevent short circuits caused by condensation from directly blowing cooling air onto the components inside the control cabinet, thus improving the operational stability of the components.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0055] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A control cabinet for use in an annealing furnace, characterized in that, include: The cabinet shell includes a back panel and a first side panel and a second side panel arranged opposite to each other along the width direction. The first side panel is provided with an air inlet and an air outlet. Both the first side panel and the second side panel are connected to the back panel. Electronic components are mounted on the back panel and are spaced apart from the bottom plate of the cabinet. A cooling component is installed outside the cabinet and is provided with a cold air outlet and a hot air inlet. The cold air outlet is connected to the air inlet, and the air outlet is connected to the hot air inlet. A deflector plate is inclinedly disposed between the first side plate and the electronic component. The upper end of the deflector plate is connected to the first side plate and located above the air inlet. The lower end of the deflector plate is lower than the air inlet and away from the first side plate. Along the width direction, the deflector plate and the electronic component are arranged at intervals.

2. The control cabinet for an annealing furnace according to claim 1, characterized in that, The deflector extends from the electronic component in a direction away from the backplate.

3. The control cabinet for an annealing furnace according to claim 2, characterized in that, It also includes a conduit and a cable located inside the conduit, the conduit being mounted on the backplate and wrapped around the electronic component, with the electronic component extending out of the conduit in a direction away from the backplate; The guide plate is located between the first side plate and the conduit.

4. The control cabinet for an annealing furnace according to claim 3, characterized in that, Along the depth direction, the size of the guide plate is larger than the size of the air inlet.

5. The control cabinet for an annealing furnace according to any one of claims 1-4, characterized in that, Along the height direction, the guide plate includes a mounting part, a first guide part, and a second guide part arranged sequentially; The mounting part is connected to the first side plate, the first guide part is inclined, and the second guide part is vertical.

6. The control cabinet for an annealing furnace according to claim 5, characterized in that, The mounting part is screwed to the first side plate.

7. The control cabinet for an annealing furnace according to claim 5, characterized in that, The guide plate is provided with a water receiving component, the water receiving component is provided with a water receiving groove, the water receiving component is installed on the second guide part, and the groove opening of the water receiving groove is located below the second guide part.

8. The control cabinet for an annealing furnace according to claim 7, characterized in that, The water receiving component is screwed to the second flow guide.

9. The control cabinet for an annealing furnace according to any one of claims 1-4, characterized in that, The guide plate includes a plate body and an insulating layer covering the plate body.

10. The control cabinet for an annealing furnace according to any one of claims 1-4, characterized in that, The air inlet is rectangular, and along the depth direction, the air inlet partially overlaps with the electronic component. The air outlet is located above the guide plate; the air outlet is circular and is offset from the electronic component along the depth direction.

Images