Novel high-temperature-resistant preheater hanging piece
By using ferritic stainless steel frames on the preheater fins to limit the expansion of the cement slab, the problem of cement slab damage under high temperature conditions was solved, and the high temperature resistance of the fins was improved.
Patent Information
- Application Number
- CN202520253715.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The existing preheater plates are prone to damage due to cement expansion in high-temperature environments, affecting the normal operation of the equipment.
The cement slab is encased in a frame made of ferritic stainless steel and connected by limiting blocks and fixing bolts to restrict the thermal expansion of the cement slab and enhance its high-temperature resistance.
It effectively prevents cement slabs from cracking due to high-temperature expansion, and improves the high-temperature resistance and service life of preheater fins.
Smart Images

Figure CN223795306U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high temperature resistant novel preheater hanging piece technical field especially relates to a high temperature resistant novel preheater hanging piece. BACKGROUND
[0002] Air preheater utilizes the flue gas in the tail flue of boiler to pass through the internal heat sink and preheats the air before entering the boiler to a certain temperature of the heating surface, which is used to improve the heat exchange performance of the boiler, reduce energy consumption, and utilize the heat of the flue gas in the tail of the boiler to heat the air required for combustion. The preheater plays a crucial role in the power station boiler. The inner wall of the inner cylinder of the preheater is provided with a hanging piece. For example, a novel cement preheater inner cylinder hanging piece disclosed in Chinese Utility Model Patent No. CN214095563U includes a hot inner cylinder, an upper arm support, a locking hook, the upper arm support is fixedly connected with the inner wall of the preheater inner cylinder through fixing bolts, the locking hook is integrally formed with the upper arm support, a lower arm support is fixedly connected with the inner wall of the preheater inner cylinder through fastening screws, the lower arm support is provided with a buckling nest in the inside, the outer surface of the preheater hanging piece is provided with a reinforcing surface layer, the outer surface of the preheater hanging piece is provided with an extended eave at both ends, an upper end hook is fixedly connected with the upper end of the inner surface of the preheater hanging piece, a lower end ball head is fixedly connected with the lower end of the inner surface of the preheater hanging piece. Thus, through the supporting action of the upper arm support and the lower arm support, each preheater hanging piece can be independently fixed, so that any preheater hanging piece can be individually disassembled or replaced, thereby greatly simplifying the operation steps and solving the problem that the damaged preheater hanging piece is not easy to replace in the use of the existing preheater device.
[0003] The above device still has some problems in use. The hanging piece needs to withstand high temperature in use, and the hanging piece is made of cement. The cement will expand due to heat, and the hanging plate will be damaged due to expansion in use, affecting the normal use of the preheater. UTILITY MODEL CONTENTS
[0004] In view of the above technical problems, the utility model provides a high temperature resistant novel preheater hanging piece, which is characterized by being composed of a plate body structure, an upper frame structure, a side frame structure, a lower frame structure and a connecting structure, the plate body structure is provided with a side frame structure on both sides, the plate body structure is provided with an upper frame structure on the upper side, the plate body structure is provided with a lower frame structure on the lower outer side, the upper frame structure and the lower frame structure are provided with a connecting structure on the outer side,
[0005] The plate body structure is composed of a straight plate body, an upper plate body and a lower plate body, the straight plate body is provided with an upper plate body on the upper side, and the straight plate body is provided with a lower plate body on the lower side,
[0006] The side frame structure is composed of a side frame A and a side frame B, the straight plate body is provided with a side frame A on the outer side of one end, and the straight plate body is provided with a side frame B on the outer side of the other end,
[0007] The upper frame structure is composed of end frame A, upper horizontal frame A, upper horizontal frame B, upper vertical frame A and upper vertical frame B, the lower end of the upper plate body is provided with end frame A, one side of the horizontal plate body of the upper plate body is provided with upper horizontal frame A, the other side of the horizontal plate body of the upper plate body is provided with upper horizontal frame B, one side of the longitudinal plate body of the upper plate body is provided with upper vertical frame A, and the other side of the longitudinal plate body of the upper plate body is provided with upper vertical frame B,
[0008] The lower frame structure is composed of end frame B, lower horizontal frame A, lower vertical frame A, lower vertical frame B and lower horizontal frame B, the upper end of the lower plate body is provided with end frame B, one side of the horizontal plate body of the lower plate body is provided with lower horizontal frame A, the other side of the horizontal plate body of the lower plate body is provided with lower horizontal frame B, one side of the longitudinal plate body of the lower plate body is provided with lower vertical frame A, and the other side of the longitudinal plate body of the lower plate body is provided with lower vertical frame B,
[0009] The connecting structure is composed of limiting blocks, limiting holes, limiting grooves and fixing bolts, the inner sides of the upper vertical frame A and the upper vertical frame B are respectively provided with limiting blocks, the limiting blocks are provided with limiting holes in the inside, the inner sides of the lower vertical frame A and the lower vertical frame B are respectively provided with limiting grooves, and the side walls of the limiting grooves are provided with fixing bolts,
[0010] The side frame A, the side frame B, the end frame A, the upper horizontal frame A, the upper horizontal frame B, the upper vertical frame A, the upper vertical frame B, the end frame B, the lower horizontal frame A, the lower vertical frame A, the lower vertical frame B and the lower horizontal frame B are all made of ferrite stainless steel.
[0011] The utility model discloses a beneficial effect:
[0012] The utility model discloses a kind of high-temperature-resistant novel preheater hanger piece, when using the utility model, two pieces of preheater hanger piece are connected and used, the upper plate body of lower hanger piece is connected and installed with the lower plate body of upper hanger piece, the upper vertical frame installed on the outer side of the upper plate body of lower hanger piece and the limiting block respectively installed on the inner side of upper vertical frame are inserted into the limiting groove respectively installed on the lower vertical frame and the lower vertical frame of the lower plate body of lower hanger piece, limiting groove and limiting block are fixed using fixing bolt, two pieces of hanger piece can be fixedly connected at this time.In the present application, the frame material wrapped on the outer side of the plate body of cement material is ferrite stainless steel, which has good high-temperature-resistant and oxidation-resistant performance, small thermal expansion coefficient, and is not easy to deform in high-temperature use environment, the plate body of cement material is wrapped on the outer side, the preheating expansion is limited, and the risk of expansion damage due to high temperature is reduced. DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the overall structure schematic diagram of the utility model discloses a kind of high-temperature-resistant novel preheater hanger piece;
[0014] Figure 2 It is the overall structure schematic diagram of the utility model discloses a kind of high-temperature-resistant novel preheater hanger piece;
[0015] Figure 3 This is a schematic diagram of the overall structure of a novel high-temperature resistant preheater plate according to this utility model;
[0016] Figure 4 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0017] Figure 5 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0018] Figure 6 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0019] Figure 7 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0020] Figure 8 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0021] Figure 9 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to the present invention;
[0022] Figure 10 This is a partial structural schematic diagram of a novel high-temperature resistant preheater plate according to this utility model.
[0023] As shown in the figure: 1. Straight plate, 2. Upper plate, 3. Lower plate, 4. Side frame A, 5. Side frame B, 6. End frame A, 7. End frame B, 8. Upper horizontal frame A, 9. Upper horizontal frame B, 10. Lower horizontal frame A, 11. Upper vertical frame A, 12. Upper vertical frame B, 13. Lower vertical frame A, 14. Lower vertical frame B, 15. Limiting block, 16. Limiting hole, 17. Limiting groove, 18. Fixing bolt, 19. Lower horizontal frame B. Detailed Implementation
[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example 1
[0027] like Figure 1 , Figure 3 As shown, an upper plate 2 is installed above the straight plate 1, and a lower plate 3 is installed below the straight plate 1. A side frame A4 is installed on the outer side of one end of the straight plate 1, and a side frame B5 is installed on the outer side of the other end of the straight plate 1. An end frame A6 is installed at the lower end of the upper plate 1. An upper horizontal frame A8 is installed on one side of the horizontal plate of the upper plate 2, and an upper horizontal frame B9 is installed on the other side of the horizontal plate of the upper plate 2. An upper vertical frame A11 is installed on one side of the vertical plate of the upper plate 2, and an upper vertical frame B12 is installed on the other side of the vertical plate of the upper plate 2. An end frame B12 is installed at the upper end of the lower plate 3. 7. A lower horizontal frame A10 is installed on one side of the horizontal plate of the lower plate 3, and a lower horizontal frame B19 is installed on the other side of the horizontal plate of the lower plate 3. A lower vertical frame A13 is installed on one side of the longitudinal plate of the lower plate 3, and a lower vertical frame B14 is installed on the other side of the longitudinal plate of the lower plate 3. Limiting blocks 15 are installed on the inner sides of the upper vertical frames A11 and B12 respectively. Limiting holes 16 are opened inside the limiting blocks 15. Limiting grooves 17 are installed on the inner sides of the lower vertical frames A13 and B14 respectively. Fixing bolts 18 are installed in the side wall of the limiting grooves 17. Example 2
[0028] like Figure 2As shown, when using this utility model, two preheater plates are connected. The upper plate 2 of the lower plate is hooked to the lower plate 3 of the upper plate. The limiting blocks 15 installed on the inner sides of the upper vertical frame A11 and upper vertical frame B12 on the outer side of the upper plate 2 of the lower plate are inserted into the limiting grooves 17 installed on the inner sides of the lower vertical frame A13 and lower vertical frame B14 on the outer side of the lower plate 3 of the lower plate. The limiting grooves 17 and limiting blocks 15 are fixed with fixing bolts 18. At this time, the two plates can be fixedly connected.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A new type of high temperature resistant preheater hanger plate, characterized in that The plate body structure, the upper frame structure, the side frame structure, the lower frame structure and the connecting structure are composed of a straight plate body, an upper plate body and a lower plate body, the upper plate body is installed above the straight plate body, the lower plate body is installed below the straight plate body, the upper frame structure is composed of an end frame A, an upper horizontal frame A, an upper horizontal frame B, an upper vertical frame A and an upper vertical frame B, the lower frame structure is composed of an end frame B, a lower horizontal frame A, a lower vertical frame A, a lower vertical frame B and a lower horizontal frame B, the side frame structure is composed of a side edge frame A and a side edge frame B, the connecting structure is composed of a limiting block, a limiting hole, a limiting slot and a fixing bolt, the limiting block is installed inside the upper vertical frame A and the upper vertical frame B, the limiting hole is arranged in the limiting block, the limiting slot is installed inside the lower vertical frame A and the lower vertical frame B, the fixing bolt is installed in the limiting slot, and the side edge frame A, the side edge frame B, the end frame A, the upper horizontal frame A, the upper horizontal frame B, the upper vertical frame A, the upper vertical frame B, the end frame B, the lower horizontal frame A, the lower vertical frame A, the lower vertical frame B and the lower horizontal frame B are all made of ferrite stainless steel.
Citation Information
Patent Citations
Novel cement preheater inner cylinder hanging piece
CN214095563U