Novel tubesheet
By designing a novel medium tube hole structure and material for the perforated plate, the problems of low installation efficiency and high frictional resistance of the medium tube were solved, achieving stable connection and efficient heat transfer of the medium tube.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHAN COUNTY ZHAOPING FRP EQUIPMENT FACTORY
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
The low efficiency of installing the medium pipe on the tube sheet leads to reduced production efficiency, and the large contact area between the medium pipe and the tube sheet results in high frictional resistance, which affects the heat transfer efficiency.
A novel perforated plate is designed, in which the dielectric tube includes a smooth section and a shaped section. The inner diameter of the smooth section is smaller than that of the shaped section, and the central axes of the smallest inscribed circles coincide. The end of the shaped section away from the smooth section is contracted. The surface of the dielectric tube is covered with a vinyl ester resin layer and a carbon fiber layer. The plate body is made of glass fiber reinforced resin material.
This reduces the insertion resistance of the medium tube, increases the contact area and stability between the medium tube and the tube sheet, enhances heat transfer efficiency, and improves the stability and acid and alkali resistance of the medium tube.
Smart Images
Figure CN224163079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of components for general heat exchange, specifically a novel type of heat exchange plate. Background Technology
[0002] The tube sheet, also known as a mesh plate or tube plate, is located between the tank body and the end caps of the flash preheater, with one at the top and one at the bottom. It is fixed to the end caps and the top and bottom openings of the tank body by bolts, bolt holes, and connecting holes. Graphite tubes are tightly fitted into the medium tube holes in the middle of the tube sheet. The acidic medium flows through the medium tubes, and steam is passed between the medium tubes for heating, causing the water in the acid solution to evaporate, thereby concentrating it.
[0003] When inserting the medium tube into the medium tube hole on the tube sheet, the medium tube has a large contact area with the medium tube hole, resulting in a large movement resistance. In addition, since up to a hundred medium tubes need to be installed on the tube sheet, the installation efficiency of the medium tube is low, which affects the production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of decorative panel, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: The novel perforated plate includes a plate body, on which a plurality of bolt holes and connecting holes are formed. The plate body is provided with four opening areas, and a plurality of medium tube holes are uniformly formed in the four opening areas of the plate body. The medium tube holes include a smooth hole section and a shaped hole section. The inner diameter of the smooth hole section is smaller than the inner diameter of the smallest inscribed circle of the shaped hole section, and the central axis of the smooth hole section coincides with the central axis of the smallest inscribed circle of the shaped hole section.
[0006] Preferably, the end of the irregular aperture segment that is away from the light aperture segment tapers towards the central axis of the irregular aperture segment.
[0007] Preferably, the angle at which one end of the irregular hole segment contracts toward the central axis of the irregular hole segment is less than 5°.
[0008] Preferably, the optical aperture segment and the irregular aperture segment are smoothly connected.
[0009] Preferably, the length of the aperture segment is d, and the total thickness of the plate is h, then d ≤ h / 3.
[0010] Preferably, the inner surface of the medium tube hole is covered with a vinyl ester resin layer, and carbon fiber layers are covered on the vinyl ester resin layer and on both sides of the plate.
[0011] Preferably, the plate is made of glass fiber reinforced resin material.
[0012] Preferably, the bolt holes and connecting holes are arranged along the circumference of the plate.
[0013] Preferably, the number of bolt holes and connecting holes are the same, and the bolt holes and connecting holes are spaced apart.
[0014] The beneficial effects of this utility model are:
[0015] This new type of perforated plate can reduce the resistance of the medium tube when it passes through the plate body, and after the medium tube has completed its expansion, it can increase the contact area between the medium tube and the medium tube hole, thereby improving the efficiency of heat transfer. Furthermore, after the medium tube has completed its expansion, the irregular hole section can also restrict the rotation of the medium tube, thereby improving the stability of the medium tube. Attached Figure Description
[0016] Figure 1 This is a top view of one side of the plate.
[0017] Figure 2 This is a top view of the other side of the plate.
[0018] Figure 3 This is a cross-sectional view of the medium tube hole.
[0019] Figure 4 This is a schematic diagram showing the coverage of the vinyl ester resin layer and the carbon fiber layer on the plate.
[0020] In the figure: 1. Plate body; 2. Bolt hole; 3. Connection hole; 4. Medium tube hole; 5. Optical hole section; 6. Irregular hole section; 7. Vinyl ester resin layer; 8. Carbon fiber layer. Detailed Implementation
[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0022] like Figure 1-4 As shown, a novel type of perforated board has multiple bolt holes 2 and connecting holes 3 penetrating the board body 1. The board body 1 has four opening areas, and multiple medium tube holes 4 penetrating the board body 1 are evenly opened in the four opening areas. The medium tube hole 4 includes a smooth hole section 5 and a non-circular hole section 6. The inner diameter of the smooth hole section 5 is smaller than the inner diameter of the smallest inscribed circle of the non-circular hole section 6, and the central axis of the smooth hole section 5 coincides with the central axis of the smallest inscribed circle of the non-circular hole section 6.
[0023] During assembly, two tube sheets, several medium tubes, and baffles are required. The tube sheets and baffles are placed on a special mounting platform. All baffles are located between the two tube sheets, and the sides of the two tube sheets closest to the aperture section 5 are opposite each other. That is, the two aperture sections 5 on the two tube sheets are located between the two irregular aperture sections 6.
[0024] When inserting the medium tube, first insert the medium tube into plate 1 through the irregular hole section 6 on one of the plates 1, then pass it through the remaining baffles, and insert it into plate 1 through the smooth hole section 5 on the other plate 1, so that both ends of the medium tube protrude from the irregular hole section 6 on plate 1 by a distance of 2mm. After the medium tube is inserted, a handheld tube expander is inserted into the medium tube to expand both ends of the medium tube. This allows the outer surface of both ends of the medium tube to fit with the inner surface of the irregular hole section 6, thus preventing plate 1 from detaching from the medium tube and preventing the medium tube from rotating, thereby improving the stability of the medium tube.
[0025] Meanwhile, when the medium tube passes through the medium tube hole 4 on the plate 1, the medium tube will only make frictional contact with the light hole segment 5 in the medium tube hole 4, and will not make frictional contact with the irregular hole segment 6. Due to the reduction of the friction area, the insertion resistance of the medium tube is reduced, and it is also easier to control the movement of the medium tube.
[0026] The irregularly shaped orifice section 6 can increase the contact area with the medium tube, which is beneficial to improving the efficiency of heat transfer.
[0027] Furthermore, the end of the irregular hole section 6 that is away from the light hole section 5 contracts towards the central axis of the irregular hole section 6. After the expansion operation is completed at both ends of the medium tube, the part of the medium tube that has expanded is located in the irregular hole section 6. The contracted parts of the light hole section 5 and the irregular hole section 6 will restrict the movement of the medium tube after expansion, thereby further improving the connection stability between the medium tube and the plate 1.
[0028] Furthermore, the angle at which one end of the irregularly shaped orifice 6 contracts toward the central axis of the irregularly shaped orifice 6 is less than 5°, so as to avoid the medium tube from coming into contact with the inner surface of the irregularly shaped orifice 6 during the process of passing through the irregularly shaped orifice 6.
[0029] Furthermore, the smooth connection between the light aperture section 5 and the irregular aperture section 6 facilitates the outer surface of the medium tube after expansion to maintain contact with the inner surface at the connection between the light aperture section 5 and the irregular aperture section 6.
[0030] Furthermore, the length of the aperture segment 5 is d, and the total thickness of the plate 1 is h. Therefore, d ≤ h / 3, and the thickness of the plate 1 in this embodiment is 40 mm.
[0031] Furthermore, a vinyl ester resin layer 7 is coated on the inner surface of the medium tube hole 4, and carbon fiber layers 8 are coated on the vinyl ester resin layer 7 and both sides of the plate 1. The presence of a vinyl ester resin layer 7 on the inner surface of the medium tube hole 4 and carbon fiber layers 8 on top of it allows heat to be conducted to the medium tube located within the medium tube hole 4 via the carbon fibers, thereby increasing the heat-receiving area and improving heat transfer efficiency. Moreover, the combination of the vinyl ester resin layer 7 and the carbon fiber layer 8 makes this novel perforated plate resistant to strong acids and alkalis.
[0032] Furthermore, the plate 1 is made of glass fiber reinforced resin material, and the plate 1 is formed by high temperature and hydraulic curing of a molding material in which glass fiber and resin are mixed.
[0033] Furthermore, both bolt holes 2 and connecting holes 3 are arranged circumferentially along the plate 1.
[0034] Furthermore, the number of bolt holes 2 and connecting holes 3 are the same, and the bolt holes 2 and connecting holes 3 are spaced apart.
[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A novel type of decorative panel, characterized in that, The device includes a plate body with multiple bolt holes and connection holes penetrating the plate body. The plate body has four opening areas, and multiple medium tube holes penetrating the plate body are evenly opened in the four opening areas. The medium tube holes include a light hole section and a non-circular hole section. The inner diameter of the light hole section is smaller than the inner diameter of the smallest inscribed circle of the non-circular hole section, and the central axis of the light hole section coincides with the central axis of the smallest inscribed circle of the non-circular hole section.
2. The novel perforated board according to claim 1, characterized in that, The end of the irregular aperture segment that is furthest from the light aperture segment contracts toward the central axis of the irregular aperture segment.
3. The novel perforated board according to claim 2, characterized in that, The angle at which one end of the irregular hole segment contracts toward the central axis of the irregular hole segment is less than 5°.
4. The novel perforated board according to claim 3, characterized in that, The optical aperture segment and the irregular aperture segment are smoothly connected.
5. The novel perforated board according to claim 1, characterized in that, If the length of the aperture segment is d and the total thickness of the plate is h, then d ≤ h / 3.
6. The novel perforated board according to claim 1, characterized in that, The inner surface of the medium tube hole is covered with a vinyl ester resin layer, and carbon fiber layers are covered on the vinyl ester resin layer and on both sides of the plate.
7. The novel perforated board according to any one of claims 1-6, characterized in that, The plate is made of glass fiber reinforced resin material.
8. The novel perforated board according to claim 1, characterized in that, The bolt holes and connecting holes are all arranged along the circumference of the plate.
9. The novel perforated board according to claim 8, characterized in that, The number of bolt holes and connecting holes are the same, and the bolt holes and connecting holes are spaced apart.