Novel enamel condensation sheet

Abstract

The utility model relates to a novel enamel condensation sheet which comprises a top plate, a bottom plate and side plates, the side plates are connected between the top plate and the bottom plate, the top plate and the bottom plate are oppositely arranged, a heat exchange cavity is formed between the top plate and the bottom plate, the top plate and the bottom plate are made of first steel plates, and the side plates are made of second steel plates. The toughness of the second steel plate is greater than that of the first steel plate. The top plate and the bottom plate which are horizontally and oppositely arranged in the condensation sheet are made of the first steel plates, the side plates which are vertically arranged are made of the second steel plates, the toughness of the second steel plates is larger than that of the first steel plates, and the better the toughness is, the smaller the possibility of brittle fracture is. The side plates are good in toughness, stress of the top plate and the bottom plate can be adjusted according to pressure, porcelain explosion caused by stress concentration is prevented, according to the scheme, different steel materials are adaptively selected according to different stress conditions and stress characteristics in the horizontal direction and the vertical direction, the mechanical property of the condensation piece can be improved, and porcelain explosion of the enamel coating can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to a novel enamel condenser sheet. Background Art

[0002] The vitreous enameled plate condenser is a commonly used heat exchange device. Its principle is to condense steam into liquid through heat exchange between vitreous enameled heat exchange plates and the cooling medium. When high-temperature, high-pressure steam enters the vitreous enameled plate condenser, it contacts the surface of the heat exchange plates. The heat in the steam is absorbed by the plates and transferred to the cooling medium within the plates. Simultaneously, the heat in the cooling medium is also absorbed by the plates and transferred to the other side of the cooling medium, heating it. After the heat exchange, the steam condenses into liquid and is discharged from the system.

[0003] The main reasons for the condenser plate to undergo the enameling process include improving heat transfer capacity, enhancing corrosion resistance and increasing service life. These characteristics give enameled plate condensers significant advantages in industrial applications. The existing condenser plate is composed of a top plate, a bottom plate and a side plate that are spliced ​​together, so that a cavity is formed inside it that can be filled with a heat exchange refrigerant fluid. However, for the existing condenser plate, the top plate, the bottom plate and the side plates that make up the condenser plate are all made of the same material. During the manufacturing process or use process, due to different temperatures and structures in different places, the stress generated by the top plate, the bottom plate and the side plates working together will be too large to be released, which will lead to local stress concentration, causing cracks in the enamel layer and then porcelain explosion. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problem of porcelain explosion of enameled condensing sheets due to excessive local stress. It provides a new type of enameled condensing sheet that can reduce the generation of local stress by improving the materials of the condensing plate and side plates of the condensing sheet. The main concept is:

[0005] A new type of enameled condenser plate includes a top plate, a bottom plate and side plates, the side plates are connected to the top plate and the bottom plate, the top plate and the bottom plate are arranged opposite to each other, and a heat exchange cavity is provided between the top plate and the bottom plate, the top plate and the bottom plate are made of a first steel plate, and the side plates are made of a second steel plate, and the toughness of the second steel plate is greater than the toughness of the first steel plate. The top plate and the bottom plate arranged horizontally relative to each other in the condenser plate are made of the first steel plate, and the side plates arranged vertically are made of the second steel plate, and the toughness of the second steel plate is greater than the toughness of the first steel plate. The better the toughness, the less likely it is to cause brittle fracture. The good toughness of the side plates can adjust the stress of the top plate and the bottom plate according to the pressure to prevent stress concentration from causing porcelain explosion. This solution adaptively selects different steel materials according to the different stress conditions and stress characteristics in the horizontal and vertical directions, which can improve the mechanical properties of the condenser plate and prevent porcelain explosion of the enamel coating.

[0006] Preferably, the hardness of the first steel plate is greater than that of the second steel plate. The top plate and bottom plate made of the first steel plate have high hardness, so that the top plate and bottom plate are not easily deformed and cause porcelain cracking.

[0007] Preferably, the top plate and the bottom plate are made of hard alloy steel plates.

[0008] Preferably, the side plates are made of carbon steel plates.

[0009] Preferably, the outer surfaces of the top plate and the bottom plate are coated with an enamel coating. The enamel coating has excellent thermal conductivity and heat exchange performance, can quickly transfer heat, and improve the heat transfer efficiency of the condenser. The enamel coating can also resist erosion by corrosive substances such as acids, alkalis, and salts, thereby extending the service life of the condensing equipment.

[0010] Preferably, the heat exchange cavity is provided with a plurality of reinforcing ribs, which are used to form a curved flow channel within the heat exchange cavity, which is used to allow heat exchange medium to flow through for heat exchange. The curved flow channel provided in the heat exchange cavity prolongs the flow path of the heat exchange medium within the internal cavity of the condenser plate, allowing the flowing heat exchange medium to reside longer within the heat exchange cavity, thereby achieving a better heat exchange effect for the same area.

[0011] The second aspect of the present invention aims to solve the technical problem that when the preferred condensing plate is used for heat exchange, dead angles of flow will be generated, resulting in poor heat exchange effect. Furthermore, the top plate is provided with a groove, and arc chamfers are provided around the groove. A smooth transition is made at the groove of the top plate to optimize the flow of the heat exchange fluid on the top plate. On the one hand, the heat exchange fluid can be subjected to less flow resistance and flow continuously at the position of the arc chamfer of the top plate. On the other hand, the arc chamfering of the groove reduces the dead angles of flow of the heat exchange fluid around the top plate, and concentrates the heat exchange fluid in the middle part with good heat exchange effect, further improving the heat exchange effect of the condensing plate.

[0012] Preferably, the top plate and the bottom plate are each provided with at least one feed opening, and the feed opening of the top plate is connected to the feed opening of the bottom plate. The feed openings of the top plate and the bottom plate are connected so that the heat exchange fluid received by the top plate flows through the interconnected feed openings to the condensing plate below the bottom plate to continue the next stage of heat exchange.

[0013] The third aspect of the present invention aims to solve the technical problem that welding at the orifice of the existing feed opening causes the enamel surface to be uneven and prone to porcelain cracking. Furthermore, the feed opening is a forged punched hole, and the feed opening includes an inner hole portion and a flange portion. This solution can make the orifice smooth and burr-free by flanging the inner hole at the punching point of the forging process, ensure the processing quality of the feed opening on the condensing plate surface, improve the overall quality of the workpiece, and ensure that the surface of the workpiece after the top plate and the bottom plate are sintered to form an enamel layer will not cause porcelain cracking due to uneven coating.

[0014] Preferably, the feed openings between the top and bottom plates are positioned relative to each other, the flanges are positioned within the heat exchange cavity, and the flanges of the top and bottom plates are connected by welding. This flange arrangement allows welding to be performed at only one location at the feed opening connection between the top and bottom plates. During welding at the feed opening connection, the welding torch is applied along the heat exchange cavity, outside the flanges. This ensures that the welding location is not located on the heat exchange surface of the condenser plate and that the enamel coating is not applied to the welding location.

[0015] The beneficial effects of the present invention are:

[0016] Adaptively selecting different steel materials according to the different stress conditions and stress characteristics in the horizontal and vertical directions can improve the mechanical properties of the condenser and prevent the enamel coating from cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is the structural section of the utility model Figure 1 .

[0019] Figure 3 This is the structural section of the utility model Figure 2 .

[0020] Figure 4 It is a partial enlarged view of the material outlet structure of the present utility model.

[0021] The reference numerals include: 1, top plate; 11, groove; 12, arc chamfer; 2, bottom plate; 3, side plate; 31, water inlet interface; 32, water outlet interface; 4, heat exchange cavity; 5, reinforcing rib plate; 6, flow channel; 7, material outlet; 71, inner hole portion; 72, flange portion. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0023] It should be noted that all actions of obtaining signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located and with the authorization given by the owner of the corresponding device.

[0024] In this disclosure, unless otherwise specified, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" are used in this disclosure to distinguish one element from another and do not convey order or importance.

[0025] Example 1:

[0026] like Figure 1-Figure 2 As shown, a new type of enameled condenser in this embodiment includes a top plate 1, a bottom plate 2 and a side plate 3, the side plate 3 is connected to the top plate 1 and the bottom plate 2, the top plate 1 and the bottom plate 2 are arranged opposite to each other, and a heat exchange cavity 4 is provided between the top plate 1 and the bottom plate 2, the top plate 1 and the bottom plate 2 are made of a first steel plate, the side plate 3 is made of a second steel plate, and the toughness of the second steel plate is greater than the toughness of the first steel plate.

[0027] The top plate 1 and bottom plate 2 arranged horizontally relative to each other in the condenser are made of a first steel plate, and the side plate 3 arranged vertically is made of a second steel plate. The toughness of the second steel plate is greater than that of the first steel plate. The better the toughness, the smaller the possibility of brittle fracture. The good toughness of the side plate 3 can adjust the stress of the top plate 1 and the bottom plate 2 according to the pressure to prevent stress concentration from causing porcelain explosion. This solution adaptively selects different steel materials according to the different stress conditions and stress characteristics in the horizontal and vertical directions, which can improve the mechanical properties of the condenser and prevent the enamel coating from exploding.

[0028] The hardness of the first steel plate is greater than that of the second steel plate. The top plate and the bottom plate made of the first steel plate have high hardness, so that the top plate and the bottom plate are not easily deformed to cause porcelain cracking.

[0029] The top and bottom plates 1 and 2 are made of carbide steel plates, while the side plates 3 are made of carbon steel plates. The high hardness of carbide steel plates and the good toughness of carbon steel plates allow the side plates 3 made of carbon steel plates to adapt to the top and bottom plates 1 and 3, ensuring that the condenser plate does not crack.

[0030] The outer surfaces of the top plate 1 and the bottom plate 2 are coated with an enamel coating. The enamel coating has excellent thermal conductivity and heat exchange performance, can quickly transfer heat, improve the heat transfer efficiency of the condenser, and can resist the erosion of corrosive substances such as acids, alkalis, and salts, thereby extending the service life of the condensing equipment.

[0031] Example 2:

[0032] like Figure 1-Figure 2 As shown, the top plate 1 of this embodiment is provided with a groove 11, and the groove 11 is provided with arc chamfers 12 at the four sides. The smooth transition at the groove of the top plate optimizes the flow of the heat exchange fluid on the top plate 1. On the one hand, the heat exchange fluid is subjected to less flow resistance at the position of the arc chamfer 12 of the top plate and flows continuously. On the other hand, the arc chamfer 12 treatment of the groove 11 reduces the flow dead angle of the heat exchange fluid at the four sides of the top plate 1, and concentrates the heat exchange fluid in the middle part with good heat exchange effect, further improving the heat exchange effect of the condenser.

[0033] A plurality of reinforcing ribs 5 are provided inside the heat exchange cavity 4. The plurality of reinforcing ribs 5 are used to form a curved flow channel 6 inside the heat exchange cavity 4. The heat exchange cavity 4 is used to introduce a heat exchange medium for heat exchange. The curved flow channel 6 provided in the heat exchange cavity 4 prolongs the flow path of the heat exchange medium in the internal cavity of the condenser plate, so that the flowing heat exchange medium stays in the heat exchange cavity 4 for a longer time, and the heat exchange effect of the same area is better. The side panel 3 is provided with a water inlet interface 31 and a water outlet interface 32. The water inlet interface 31 and the water outlet interface 32 are respectively connected to the two ends of the flow channel 6. The water inlet interface 31 and the water outlet interface 32 are connected to the flow channel 6 of the heat exchange cavity 4, so that the heat exchange medium input by the water inlet interface 31 can fully contact the top plate 1 and the bottom plate 2 of the condenser plate along the curved flow channel 6 inside the heat exchange cavity 4 before being output from the water outlet interface 32.

[0034] Preferably, the top plate 1 and the bottom plate 2 are each provided with at least one feed opening 7, and the feed opening 7 of the top plate is connected to the feed opening 7 of the bottom plate. The feed openings of the top plate 1 and the bottom plate 2 are connected so that the heat exchange fluid received by the top plate 1 flows through the interconnected feed openings to the condensing plate below the bottom plate 2 to continue the next stage of heat exchange.

[0035] Example 3:

[0036] like Figure 3-Figure 4As shown, the feed opening 7 of this embodiment is a forged punched hole, comprising an inner hole portion 71 and a flange portion 72. The flanged inner hole portion punched by the forging process in this embodiment can make the hole smooth and burr-free, ensuring the processing quality of the feed opening on the condenser plate surface and improving the overall quality of the workpiece. This prevents porcelain cracking due to uneven coating on the workpiece surface after the top and bottom plates are sintered to form the enamel layer.

[0037] The forging and punching process includes the following steps: first, the metal top plate 1 and bottom plate 2 are placed on the workbench of the punching machine and pressed into the required shape using a mold. Then, the edges of the top plate 1 and bottom plate 2 are flipped up using a flanging mold to form a raised edge. Finally, trimming and lubrication are performed as needed to make the surface of the product smooth and not easy to rust or damage.

[0038] The feed openings 7 between the top plate 1 and the bottom plate 2 are arranged relative to each other, and the flange portion 72 is arranged inside the heat exchange cavity 4. The flange portion 72 of the top plate 1 and the bottom plate 2 are connected by welding. The provision of the flange portion 72 allows welding at only one location at the connection between the feed openings 7 of the top plate 1 and the bottom plate 2. When welding at the feed opening 7 connection location, the welding torch welds along the heat exchange cavity 5 on the outside of the flange portion 72. This ensures that the welding location of the flange portion 72 is not located on the heat exchange surface of the condenser plate, and also prevents the enamel coating from being applied to the welding location.

[0039] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A new type of enamel condenser, characterized by: The invention comprises a top plate (1), a bottom plate (2) and a side plate (3), wherein the side plate (3) is connected to the top plate (1) and the bottom plate (2), the top plate (1) and the bottom plate (2) are arranged opposite to each other, and a heat exchange cavity (4) is provided between the top plate (1) and the bottom plate (2), wherein the top plate (1) and the bottom plate (2) are made of a first steel plate, and the side plate (3) is made of a second steel plate, and the toughness of the second steel plate is greater than that of the first steel plate.

2. The novel enamel condenser according to claim 1, characterized in that: The hardness of the first steel plate is greater than the hardness of the second steel plate.

3. The novel enamel condenser according to claim 1, characterized in that: The top plate (1) and the bottom plate (2) are made of hard alloy steel plates.

4. The novel enamel condenser according to claim 1, characterized in that: The side plates (3) are made of carbon steel plates.

5. The novel enamel condenser according to claim 1, characterized in that: The outer surfaces of the top plate (1) and the bottom plate (2) are coated with an enamel coating.

6. The novel enamel condenser according to claim 1, characterized in that: A plurality of reinforcing ribs (5) are provided inside the heat exchange cavity (4), and the plurality of reinforcing ribs (5) are used to form a curved flow channel (6) in the heat exchange cavity (4). The heat exchange cavity (4) is used to allow a heat exchange medium to enter for heat exchange.

7. The novel enamel condenser according to claim 1, characterized in that: The top plate (1) is provided with a groove (11), and arc chamfers (12) are provided around the groove (11).

8. The novel enamel condenser according to claim 1, characterized in that: The top plate (1) and the bottom plate (2) are respectively provided with at least one material outlet (7), and the material outlet (7) of the top plate is communicated with the material outlet (7) of the bottom plate.

9. The novel enamel condenser according to claim 8, characterized in that: The material outlet (7) is a forging punching hole, and the material outlet (7) comprises an inner hole portion (71) and a flange portion (72).

10. The novel enamel condenser according to claim 8, characterized in that: The material outlet (7) between the top plate (1) and the bottom plate (2) is arranged relative to each other, the flange portion (72) is arranged inside the heat exchange cavity (4), and the flange portions (72) of the top plate (1) and the bottom plate (2) are connected by welding.

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