Low cost drying radiant panel

Abstract

The utility model discloses a low -cost drying radiant panel, including casing, with the heating plate of casing is connected and installs the heating pipe on heating plate, the surface of heating plate has radiation coating, heating plate adopts aluminium alloy drawing and is formed, the casing adopts galvanized iron sheet and is made into, and the heat storage groove is formed between casing with heating plate. The utility model discloses a heating plate adopts aluminium alloy material drawing and is formed, and processing is simple, and has good heat conductivity. The casing adopts galvanized iron sheet and is made into, and the strength is enough, and the cost is low.

Description

Technical Field

[0001] This utility model relates to a heating component for use in drying equipment, and more particularly to a heating component for use in drying equipment for drying transformer cores. Background Technology

[0002] In the prior art, such as Chinese Patent No. CN201310624796.3, published on July 23, 2014, a unidirectional infrared radiation plate is disclosed, which has three functional layers: a heat insulation layer, a heat-generating insulation layer, and a metal heat-conducting radiation layer. It is composed of layers of materials with different functions. Its first layer is the heat insulation layer, its second layer is the heat-generating insulation layer, and its third layer is the metal heat-conducting radiation layer. The heat insulation layer is composed of silicate or silicon oxide ceramic material, formed as a fiber layer and a porous layer, or a mixture of porous and fiber layers. The heat-generating insulation layer is composed of silicate or silicon oxide ceramic material; one side of this layer is a rough surface, and the other side is engraved with uniformly distributed grooves. Heating wires are embedded in these grooves, or conductive silicon carbide is sintered in the grooves. The metal heat-conducting radiation layer is made of a heat-conducting metal material, with an oxide layer formed on its surface. One side is combined with the heat-generating insulation layer, and the other side is coated with an infrared radiation material. In the above solution, the multiple heating layers are rigidly connected, and the heating plate operates at a very high temperature. Temperature differences exist between the heating layers, resulting in varying degrees of thermal expansion. The rigid connection forcibly restricts the free expansion of the heating plate, causing bending and deformation of the metal heating plate. This creates gaps between the heating layers. These gaps lead to poor contact between the temperature probe and the heating plate, resulting in a lower detected temperature. This misleads the temperature control module, causing the heating plate temperature to be higher, affecting the safety of the dried product. The insulation between the heating wires relies entirely on the insulating material. Gaps allow insulating material powder to settle, causing the heating wires to warp. This insulation failure can easily lead to short circuits, generating large currents and significant heat. This can cause the insulating material to overheat and fail. If the heat source is energized, it will directly connect to the outer casing, resulting in an externally electrified heating plate, posing a serious safety hazard. Furthermore, in the above solution, the radiant plate uses an integral structure, which is complex to manufacture and costly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drying radiation plate that is easy to process and has low cost.

[0004] According to the present invention, a low-cost drying radiation plate includes a shell, a heating plate connected to the shell, and a heating tube installed on the heating plate. The surface of the heating plate has a radiation coating. The heating plate is made of aluminum alloy drawn into shape. The shell is made of galvanized iron sheet bent into shape. A heat storage tank is formed between the shell and the heating plate.

[0005] The low-cost drying radiation plate provided by this utility model also has the following auxiliary technical features:

[0006] The housing further includes an outer shell and an inner shell, with an insulation space formed between the outer shell and the inner shell, and the insulation space is filled with an insulation layer.

[0007] Furthermore, the insulation layer is integrally formed from insulation material.

[0008] The heat storage tank is further formed between the inner shell and the heating plate.

[0009] Further, the heating plate has bent wing plates formed on both sides, and the wing plates have grooves formed on them. The housing has flanges formed on both sides, and the flanges are engaged in the grooves.

[0010] Further, the heating plate has bent wing plates formed on both sides, and multiple sliding grooves are formed on the wing plates. The outer shell and the inner shell have flanges formed on both sides, and the flanges are engaged in the sliding grooves.

[0011] Further, the heating plate has one or more grooves on its back side, and the heating tube is installed in the grooves.

[0012] Further, one end of the heating tube is connected to the housing by a fastener, and the other end of the heating tube is a free end.

[0013] Further, the heating plate is a long strip-shaped flat plate structure, and multiple heating tubes are installed on the back side of the heating plate; or the cross-section of the heating plate is arc-shaped or polygonal, and a single heating tube is installed on the back side of the heating plate.

[0014] Furthermore, multiple radiating plates are assembled together to form a large-width radiating unit.

[0015] The low-cost drying radiation plate provided by this utility model has the following advantages compared with the prior art: The heating plate of this utility model is made of aluminum alloy material by drawing, which is simple to process and has good thermal conductivity. The shell is made of galvanized iron sheet by bending, which has sufficient strength and low cost. Therefore, the above structure of this utility model not only facilitates processing but also greatly reduces costs. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 This is a top view of the present invention with the cover plate removed.

[0019] Figure 4 This is a front view of the heating plate in this utility model.

[0020] Figure 5 This is a front view of the inner shell in this utility model.

[0021] Figure 6 This is a front view of the outer shell of this utility model.

[0022] Figure 7 This is a front view of another embodiment of the present invention.

[0023] Figure 8 for Figure 7 Top view.

[0024] Figure 9 This is a physical image of the present invention. Detailed Implementation

[0025] To clearly illustrate the solutions in this utility model, preferred embodiments are given below in conjunction with the accompanying drawings for detailed description. The following description is merely exemplary and not intended to limit the application or use of this disclosure. It should be understood that throughout the drawings, corresponding reference numerals denote the same or corresponding parts and features.

[0026] like Figures 1 to 6 , Figure 9As shown, this utility model provides a low-cost drying radiation plate, including a shell 1, a heating plate 2 connected to the shell 1, and a heating tube 3 mounted on the heating plate 2. The surface of the heating plate 2 has a radiation coating. The heating plate 2 is formed by drawing aluminum alloy, and the shell 1 is formed by bending galvanized iron sheet. A heat storage tank 11 is formed between the shell 1 and the heating plate 2. The radiation coating in this utility model is an infrared thermal radiation coating, which can generate infrared radiation from the high temperature of the heating tube 3 through the heating plate 2. The radiation plate in this utility model is mainly used in vacuum drying equipment. This type of drying equipment is mainly used in the drying process of transformer processing. Using infrared radiation to heat the inner cavity of the drying equipment results in better heating effect. Existing heating plates mainly adopt a large-panel structure and a multi-layer plate structure, with heating wires directly set in the multi-layer plates. The layers are rigidly connected together by bolts. The processing of this type of radiation plate is complex, with low yield and high cost. This utility model uses aluminum alloy material to draw the heating plate 2, which can be continuously mass-produced, reducing processing costs and improving processing efficiency. The housing 1 is made of galvanized iron sheet by bending, which is low in cost and easy to process. Aluminum alloy material has good thermal conductivity, meeting the thermal conductivity requirements of infrared radiation. The housing 1 made of galvanized iron sheet can reduce costs while meeting strength requirements. Therefore, this invention can reduce costs and is easy to process. The heat storage tank 11 has a heat storage function, improving radiation efficiency. Figure 9 This is a physical image of the utility model; the right side is the front, and the left side is the back. The front view on the right shows a black radiation coating on the surface.

[0027] See Figures 1 to 6 In the above embodiments of this utility model, the housing 1 further includes an outer shell 12 and an inner shell 13, with an insulation space formed between the outer shell 12 and the inner shell 13, and an insulation layer 14 filled in the insulation space. This utility model adopts a double-layer housing structure, forming an insulation space between the outer shell 12 and the inner shell 13, and placing the insulation layer 14 within this insulation space. The insulation layer 14 is made of insulation material and, when placed within the insulation space, better protects the insulation material and prevents it from splashing. Under the action of vacuum suction, no powder will be generated that could affect the product or the vacuum system piping.

[0028] See Figures 1 to 6 In the above embodiments provided by this utility model, the insulation layer 14 is further comprising an integrally formed insulation material. This utility model, by making the insulation material into an integral structure, can reduce powder generation and will not affect the product or vacuum system piping.

[0029] See Figures 1 to 6In the above embodiments of this utility model, the heat storage tank 11 is further formed between the inner shell 13 and the heating plate 2. In this utility model, the heat storage tank 11 and the insulation layer 14 are separately arranged, preventing the insulation material in the insulation layer 14 from splashing into the heat storage tank 14 and thus making it less likely to be sucked away by the vacuum system. Furthermore, this separate arrangement results in better heat storage performance.

[0030] See Figures 1 to 6 In the above embodiment of this utility model, the heating plate 2 is further comprising bent wing plates 22 formed on both sides, the wing plates 22 having grooves 23 formed thereon, and the housing 1 having flanges 15 formed on both sides, the flanges 15 being engaged in the grooves 23. This utility model employs a connection structure of flanges 15 and grooves 23, which provides deformation allowance not only in the length direction but also in the width direction, thereby ensuring the flatness of the heating plate 2 and preventing warping or deformation. The heating plate 2 and the housing 1 are movably connected, i.e., a flexible connection is used instead of a rigid connection. The heating plate 2 can freely expand and contract relative to the housing 1 during thermal expansion and contraction, and is less prone to deformation.

[0031] See Figures 1 to 6 In the above embodiment of this utility model, the heating plate 2 is further comprising: bent wing plates 22 formed on both sides; multiple sliding grooves 23 formed on the wing plates 22; and flanges 15 formed on both sides of the outer shell 12 and the inner shell 13, the flanges 15 being engaged in the sliding grooves 23. The outer shell 1 of this utility model is composed of a double-layer shell, both layers of which are connected to the sliding grooves of the heating plate 2. During thermal expansion and contraction, the heating plate 2 can expand and contract relative to the shell 1, and the heating plate 2 is not easily deformed.

[0032] See Figures 1 to 6In the above embodiments of this utility model, one or more grooves 21 are provided on the back side of the heating plate 2, and the heating tube 3 is installed in the groove 21. This utility model uses an independent heating tube as the heat source, ensuring that the heating wire is safely isolated from the outside of the heating plate without contact. The overall mechanical strength is sufficient, preventing warping or deformation under heat and ensuring no risk of leakage. The cross-section of the groove 21 in this utility model is the same as the cross-section of the heating tube 3, allowing the heating tube 3 to fit tightly against the groove 21, facilitating heat transfer from the heating tube 3 to the heating plate 2. In this embodiment, the heating tube 3 is a circular tube structure, and the groove 21 is a circular structure with an opening on the side. This structure allows the groove 21 to have a pre-tightening force, ensuring that when the heating tube 3 is inserted into the groove 21, the groove 21 can clamp the heating tube 3, making it difficult for the heating tube 3 to detach from the groove 21. However, when the heating plate 2 expands and contracts thermally, the groove 21 and the heating tube 3 slide relative to each other, providing deformation space for the heating plate 2.

[0033] See Figures 1 to 6 In the above embodiments of this utility model, one end of the heating tube 3 is connected to the housing 1 via a fastener 31, and the other end of the heating tube 3 forms a free end. In this embodiment, one end of the heating tube 3 is connected to the housing 1 via a fastener 31, thereby limiting the position of the heating tube 3. This utility model connects the housing 1, the heating plate 2, and the heating tube 3 together, and each of the three has a deformation allowance. In this utility model, the heating plate 2 can be fixedly connected to the heating tube 2 or the housing 1 at one end, and the rest is not rigidly connected, so that the heating plate 2 can freely extend and retract to the other end. Of course, it can also be fixedly connected in the middle, and the heating plate 2 can freely extend and retract in both directions.

[0034] See Figures 1 to 6 In the above embodiments of this utility model, the heating plate 2 is a long, flat plate structure, and multiple heating tubes 3 are mounted on the back side of the heating plate 2. In this embodiment, the heating plate 2 is a rectangular flat plate structure with a length of 1000mm, a width of 145mm, and a thickness of 3mm. A boss is integrally formed on the back side, and a groove 21 is formed on the boss. The heating tubes 3 are inserted into the grooves 21. In this embodiment, there are two heating tubes 3 and two grooves 21.

[0035] See Figures 1 to 6In the above embodiments of this utility model, it is further included that multiple radiating plates are assembled together to form a large-width radiating unit. To expand the radiating area, this utility model can use multiple radiating plates to form a radiating unit. In this splicing structure, there are gaps between the radiating plates, satisfying the requirements for thermal deformation of each radiating plate, thus preventing deformation of the large-width radiating unit. In this embodiment, the radiating unit includes a top slot plate and a bottom slot plate. Multiple radiating plates are arranged side-by-side, with the top slot plate engaging the top of the multiple radiating plates and the bottom slot plate engaging the bottom of the multiple radiating plates, thereby forming a single integral structure. The wiring of each heating tube 3 is summarized and led out to the outside via a single bus for convenient wiring.

[0036] See Figure 7 and Figure 8 In another embodiment of this utility model, the heating plate 2 has an arc-shaped or polygonal cross-section, and a single heating tube 3 is installed on the back side of the heating plate 2. In this embodiment, the heating plate 2 has an arc-shaped structure, which can expand the radiation angle and increase the radiation area. In this embodiment, the heating plate 2 is relatively narrow, close to the size of a single tube in a conventional hot oil heating heat dissipation pipe, which is beneficial for modifying existing drying equipment. Other structures in this embodiment are the same as those in the above embodiment.

[0037] In summary, the above description is merely an embodiment of this utility model and is only used to illustrate the principle of this utility model, not to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A low-cost drying radiation plate, comprising a housing, a heating plate connected to the housing, and a heating tube mounted on the heating plate, characterized in that: The surface of the heating plate has a radiation coating. The heating plate is formed by drawing aluminum alloy. The shell is formed by bending galvanized iron sheet. A heat storage tank is formed between the shell and the heating plate.

2. The low-cost drying radiation plate as described in claim 1, characterized in that: The housing includes an outer shell and an inner shell, with an insulation space formed between the outer shell and the inner shell, and the insulation space is filled with an insulation layer.

3. A low-cost drying radiation plate as described in claim 2, characterized in that: The insulation layer is integrally formed from insulation material.

4. A low-cost drying radiation plate as described in claim 2, characterized in that: The heat storage tank is formed between the inner shell and the heating plate.

5. A low-cost drying radiation plate as described in claim 1, characterized in that: The heating plate has bent wing plates on both sides, and the wing plates have grooves formed on them. The shell has flanges on both sides, and the flanges are inserted into the grooves.

6. A low-cost drying radiation plate as described in claim 2, characterized in that: The heating plate has bent wing plates on both sides, and multiple sliding grooves are formed on the wing plates. The outer shell and the inner shell have flanges formed on both sides, and the flanges are inserted into the sliding grooves.

7. A low-cost drying radiation plate as described in claim 1, characterized in that: The heating plate has one or more grooves on its back side, and the heating tube is installed in the grooves.

8. A low-cost drying radiation plate as described in claim 1, characterized in that: One end of the heating tube is connected to the housing by a fastener, and the other end of the heating tube is a free end.

9. A low-cost drying radiation plate as described in claim 1, characterized in that: The heating plate is a long strip-shaped flat plate structure, and multiple heating tubes are installed on the back side of the heating plate; or the cross-section of the heating plate is arc-shaped or polygonal, and a single heating tube is installed on the back side of the heating plate.

10. A low-cost drying radiation plate as described in claim 1, characterized in that: Multiple radiating plates are assembled together to form a large-width radiating unit.

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