Heat exchanger for formate preparation
The design of the detachable sealing plate and telescopic switch assembly solves the problem of high maintenance costs caused by heat exchange tube corrosion, realizes convenient replacement and efficient heat exchange, and improves the economic benefits and market competitiveness of formate production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-07
AI Technical Summary
The heat exchange tubes of existing heat exchangers used for formate preparation are prone to corrosion, resulting in high maintenance costs, discontinuous production, and reduced market competitiveness. Individual heat exchange tubes cannot be easily replaced.
The heat exchange pipes are installed on the sealing plate and connected by bolts and internal threaded blocks. Combined with the telescopic switch assembly and slide rail groove, the heat exchange pipes can be easily replaced and stably connected.
Reduce maintenance costs, improve equipment maintainability, enhance heat exchange efficiency, increase production efficiency, and ensure production continuity and stability.
Smart Images
Figure CN224094965U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Embodiments of the present disclosure relate to the technical field of heat exchangers for formate salt preparation, in particular, to a heat exchanger for formate salt preparation. BACKGROUND
[0002] In the preparation process of formate salt, the heat exchanger is a very critical equipment, which undertakes the important task of heat exchange and plays a decisive role in the efficient operation of the entire production process and product quality. Formate salt preparation usually involves a series of chemical reactions, which often accompany heat generation or absorption, and the reaction temperature needs to be accurately controlled by the heat exchanger to ensure that the reaction proceeds under suitable conditions, improve the reaction rate and the yield of formate salt.
[0003] However, the existing heat exchanger for formate salt preparation has many problems that cannot be ignored. At present, the heat exchange tubes of most heat exchangers are fixedly installed. Although this fixed structure ensures the stability of the equipment to some extent, it has serious drawbacks. In the complex process environment of formate salt preparation, the heat exchange tubes are in contact with corrosive materials and chemical media for a long time, and are easily corroded. For example, in some processes for preparing formate salt from acidic or alkaline raw materials, the heat exchange tubes frequently contact these corrosive substances, and the surface metal material is gradually eroded, resulting in thinning of the tube wall and decrease in strength.
[0004] Since the heat exchange tubes are fixed and cannot be easily removed, once they are corroded and damaged, they cannot be replaced individually, and usually the entire heat exchanger needs to be repaired or replaced. This not only means high repair costs, including the cost of purchasing a new heat exchanger, labor costs during replacement, etc., but also causes long-term interruption of production, and frequent replacement of heat exchangers also affects the continuity and stability of production, making it difficult to meet the market's demand for continuous supply of formate salt and reducing the market competitiveness of enterprises.
[0005] Therefore, it is urgent to develop a heat exchanger for formate salt preparation that can solve the problem of easy corrosion of heat exchange tubes, can be conveniently replaced, and has low cost, which has important practical significance for improving the economic benefits and market competitiveness of formate salt production enterprises. CONTENT OF THE INVENTION
[0006] To overcome the above-mentioned defects, embodiments of the present disclosure provide a heat exchanger for formate salt preparation, which solves the technical problem in the prior art that the heat exchange tubes are fixed and cannot be easily removed, and once they are corroded and damaged, they cannot be replaced individually, and usually the entire heat exchanger needs to be repaired or replaced.
[0007] According to one aspect, at least one embodiment of the present disclosure provides a heat exchanger for formate salt preparation, comprising:
[0008] A bottom plate and a shell fixed on top of the bottom plate;
[0009] A pair of connecting pipes connected to the top and bottom of the shell, respectively;
[0010] An outer cover arranged outside the shell and a telescopic switch assembly arranged between the outer cover and the shell;
[0011] A heat exchange connecting assembly arranged on the outer cover;
[0012] The heat exchange connecting assembly comprises a mounting groove opened on the side surface of the outer cover, a sealing plate mounted in the mounting groove, and a plurality of heat exchange pipes arranged on the surface of the sealing plate.
[0013] As a further technical solution, a butt joint groove is opened on the side surface of the sealing plate, the butt joint groove is in communication with the heat exchange pipes, a pair of connecting pipes are arranged on the side surface of the outer cover, and a plurality of butt joint nozzles are arranged on the inner side of the mounting groove.
[0014] As a further technical solution, the connecting pipes are in communication with the butt joint nozzles, the sealing plate is fixedly connected with the outer cover by bolts, and a connecting stud is arranged on the side surface of the sealing plate.
[0015] As a further technical solution, the connecting stud penetrates through the surface of the outer cover, an internally threaded block is rotatably sleeved and connected on the side surface of the outer cover, and the internally threaded block is threadedly connected with the connecting stud.
[0016] As a further technical solution, the telescopic switch assembly comprises a plurality of telescopic cylinders, the telescopic cylinders are fixed on the upper and lower ends of the two side surfaces of the shell, respectively, and the output ends of the telescopic cylinders are connected with the outer cover.
[0017] As a further technical solution, a slide rail groove is opened on the top and bottom of the shell, a pair of slide rail frames are arranged on the side surface of the outer cover, and the slide rail frames are slidably connected in the slide rail groove.
[0018] As a further technical solution, a sealing layer is arranged around the inner surface of the mounting groove.
[0019] As a further technical solution, the outer surface of the internally threaded block is polygonal in structure.
[0020] As a further technical solution, a pair of fixed slide rails are arranged on the surface of the bottom plate, and the bottom of the outer cover is slidably connected with the fixed slide rails.
[0021] As a further technical solution, the heat exchange pipes are coiled in an S-shaped structure on the sealing plate.
[0022] The embodiments of the present disclosure have the following beneficial effects:
[0023] 1. In the present disclosure, the maintenance cost is reduced and the maintainability of the equipment is improved: by installing the heat exchange pipe on the sealing plate, and adopting the detachable design of connecting the sealing plate and the outer cover with bolts and internal threaded blocks, when the heat exchange pipe is corroded and damaged, only the internal threaded block needs to be twisted to conveniently detach the sealing plate, and the damaged heat exchange pipe can be replaced alone, without the need to maintain or replace the entire heat exchanger, thereby greatly reducing the maintenance cost and improving the maintainability of the equipment.
[0024] 2. In the present disclosure, the heat exchange effect is enhanced and the production efficiency is improved: the heat exchange pipe is coiled in an S-shaped structure on the sealing plate, the heat exchange area and path are increased, and the residence time of the medium in the heat exchange pipe is prolonged, so that the heat exchange is more sufficient, the heat exchange efficiency of the heat exchanger is effectively improved, the reaction temperature in the preparation process of formate salt can be more accurately controlled, the reaction rate and the yield of formate salt are improved, and then the production efficiency is improved.
[0025] 3. In the present disclosure, the operation is convenient and the opening and closing are stable: the telescopic cylinder in the telescopic switch assembly provides power for the opening and closing of the outer cover, cooperates with the slide rail groove at the top and bottom of the shell and the slide rail frame on the side surface of the outer cover, so that the outer cover can be stably and accurately opened and closed, and the operation is simple. At the same time, the fixed slide rail on the surface of the bottom plate is slidably connected with the bottom of the outer cover, thereby increasing the stability of the outer cover when the outer cover is opened outward, especially in the case that the heat exchange pipe is heavy, the stability of the outer cover can also be ensured, and the inside of the heat exchanger can be conveniently overhauled and maintained. BRIEF DESCRIPTION OF DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and the drawings without creating any creative labor.
[0027] Figure 1 It is a structural schematic diagram in an embodiment of the present disclosure;
[0028] Figure 2 It is an axonometric view of the present disclosure;
[0029] Figure 3 It is an axonometric sectional view of the present disclosure;
[0030] Figure 4 It is an enlarged view of part A in the present disclosure; Figure 3
[0031] Figure 5 The accompanying drawings are presented to aid in the understanding of the present disclosure. Figure 3 Part B is a local enlarged view of the part marked with a circle in part A;
[0032] In the figure: 1, bottom plate; 2, outer shell; 3, on-pipe; 4, outer cover; 5, heat exchange connecting assembly; 5-1, mounting groove; 5-2, sealing plate; 5-3, heat exchange pipe; 5-4, butt joint groove; 5-5, connecting pipe; 5-6, butt joint nozzle; 5-7, connecting stud; 5-8, internal threaded block; 6, telescopic switch assembly; 6-1, telescopic cylinder; 6-2, slide rail groove; 6-3, slide rail frame; 7, sealing layer; 8, fixed slide rail. DETAILED DESCRIPTION
[0033] The present disclosure will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the present disclosure, but not to limit the present disclosure.
[0034] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0035] In this article, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.
[0036] In the present disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.
[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] like Figures 1-5 As shown, a heat exchanger for formate preparation is illustrated in one embodiment of this disclosure, comprising:
[0040] The base plate 1 and the outer shell 2 are fixed to the top of the base plate 1;
[0041] A pair of connecting pipes 3 are respectively connected to the top and bottom of the outer casing 2;
[0042] The outer cover 4 and the telescopic switch assembly 6 are provided. The outer cover 4 is disposed outside the outer shell 2, and the telescopic switch assembly 6 is disposed between the outer cover 4 and the outer shell 2.
[0043] Heat exchange connection assembly 5 is disposed on the outer cover 4;
[0044] The heat exchange connection assembly 5 includes an installation groove 5-1, which is located on the side surface of the outer cover 4. A sealing plate 5-2 is installed inside the installation groove 5-1. Several heat exchange pipes 5-3 are provided on the surface of the sealing plate 5-2. A mating groove 5-4 is provided on the side surface of the sealing plate 5-2, which is connected to the heat exchange pipes 5-3. A pair of connecting pipes 5-5 are provided on the side surface of the outer cover 4. Several mating nozzles 5-6 are provided inside the installation groove 5-1, and the connecting pipes 5-5 are connected to the mating nozzles 5-6. The sealing plate 5-2 and the outer cover 4 are fixedly connected by bolts. A connecting stud 5-7 is provided on the side surface of the sealing plate 5-2, which passes through the surface of the outer cover 4. An internal threaded block 5-8 is rotatably fitted onto the side surface of the outer cover 4, and the internal threaded block 5-8 is connected to the connecting stud 5-7 by screwing.
[0045] In some examples, in order to realize the efficient heat exchange function and ensure the sealing and stability of the connection, the heat exchange connection assembly 5 is designed. The heat exchange connection assembly 5 of the embodiment takes the installation groove 5-1 as the basic structure, the installation groove 5-1 is opened on the side surface of the outer cover 4, the sealing plate 5-2 is installed in the installation groove 5-1, the sealing plate 5-2 plays a key sealing and supporting role, and provides a stable platform for the installation of the heat exchange pipeline 5-3. A plurality of heat exchange pipelines 5-3 are arranged on the surface of the sealing plate 5-2. These heat exchange pipelines 5-3 are core components for realizing heat exchange and can transfer heat between different media. The side surface of the sealing plate 5-2 is provided with a butt joint groove 5-4, and the butt joint groove 5-4 is in communication with the heat exchange pipeline 5-3. Such a design facilitates connection with other components, realizes the flow of medium in the heat exchange pipeline 5-3, and the side surface of the outer cover 4 is provided with a pair of connecting pipelines 5-5. A plurality of butt joint nozzles 5-6 are arranged on the inner side of the installation groove 5-1. The connecting pipeline 5-5 is in communication with the butt joint nozzle 5-6. The connecting pipeline 5-5 and the butt joint nozzle 5-6 provide a channel for the input and output of the medium, so that the medium can smoothly enter and leave the heat exchange pipeline 5-3, and the continuity of the heat exchange process is ensured. The sealing plate 5-2 and the outer cover 4 are fixedly connected through bolts. This connection mode can ensure the stability of the sealing plate 5-2 in the installation groove 5-1 of the outer cover 4, prevent the sealing plate 5-2 from shifting during the heat exchange process, and affect the heat exchange effect and the sealing property. At the same time, the side surface of the sealing plate 5-2 is provided with a connecting stud 5-7, the connecting stud 5-7 penetrates through the surface of the outer cover 4, a female threaded block 5-8 is rotatably sleeved and connected on the side surface of the outer cover 4, and the female threaded block 5-8 is screw-connected with the connecting stud 5-7. This screw connection further enhances the connection strength between the sealing plate 5-2 and the outer cover 4, and is convenient to install and disassemble, so as to maintain and overhaul the sealing plate 5-2 and the heat exchange pipeline 5-3. Through the design of the heat exchange connection assembly 5, not only the efficient heat exchange function is realized, but also the sealing property and structural stability of the connection part are ensured, which can meet the demand for heat exchange under different working conditions, and improve the working efficiency and reliability of the equipment.
[0046] As shown in Figures 1-5 The telescopic switch assembly 6 is provided in the embodiment, which comprises a plurality of telescopic cylinders 6-1. The telescopic cylinders 6-1 are respectively fixed on the upper and lower ends of the two side surfaces of the shell 2. The output end of the telescopic cylinder 6-1 is connected with the outer cover 4. The top and bottom of the shell 2 are provided with sliding rail grooves 6-2. A pair of sliding rail frames 6-3 are arranged on the side surface of the outer cover 4, and the sliding rail frames 6-3 are slidingly connected in the sliding rail grooves 6-2.
[0047] In some examples, in order to achieve the stable opening and closing operation effect between the outer cover 4 and the shell 2, a telescopic switch assembly 6 is designed. The telescopic switch assembly 6 proposed in the embodiment proposes a plurality of telescopic cylinders 6-1, which are respectively fixed at the upper and lower ends of the two side surfaces of the shell 2, and provide power source for the movement of the outer cover 4. The output end of the telescopic cylinder 6-1 is connected with the outer cover 4. When the telescopic cylinder 6-1 works, the telescopic action can drive the outer cover 4 to move correspondingly, so as to realize the opening and closing of the outer cover 4. At the same time, the top and bottom of the shell 2 are provided with slide rail grooves 6-2, and the outer cover 4 is provided with a pair of slide rail frames 6-3 which are slidably connected in the slide rail grooves 6-2. The slide rail grooves 6-2 and the slide rail frames 6-3 play a guiding and supporting role. On the one hand, the slide rail grooves 6-2 provide a specific path for the sliding of the slide rail frames 6-3, so that the outer cover 4 can move stably along the straight line direction during the movement process, avoiding the shaking or deviation, and ensuring the accuracy of the opening and closing action of the outer cover 4. On the other hand, the cooperation of the slide rail frames 6-3 and the slide rail grooves 6-2 can bear the weight of the outer cover 4 and the acting force generated when the telescopic cylinder 6-1 works, thereby enhancing the structural stability of the whole switch assembly.
[0048] For example, as shown in Figure 4 The inner surface of the mounting groove 5-1 is provided with a sealing layer 7.
[0049] In some examples, by providing the sealing layer 7, the sealing effect between the sealing plate 5-2 and the mounting groove 5-1 is enhanced.
[0050] For example, as shown in Figure 1 The outer surface of the inner threaded block 5-8 is a polygonal structure.
[0051] In some examples, by the polygonal structure, the anti-skid effect is facilitated when the inner threaded block 5-8 is screwed by a tool.
[0052] For example, as shown in Figure 1 The surface of the bottom plate 1 is provided with a pair of fixed slide rails 8, and the bottom of the outer cover 4 is slidably connected with the fixed slide rails 8.
[0053] In some examples, by providing the fixed slide rails 8, the stability of the outer cover 4 when it is opened outward is increased, and the heat exchange pipeline 5-3 is prevented from being too heavy.
[0054] For example, as shown in Figure 2 The heat exchange pipeline 5-3 is coiled in an S-shaped structure on the sealing plate 5-2.
[0055] In some examples, by the S-shaped structure, the heat exchange process of the heat exchange pipeline 5-3 is longer.
[0056] In actual use: in the process of formate preparation, the medium which needs to exchange heat is introduced into the heat exchanger through the connecting pipeline 3 on the top or bottom of the shell 2, and the medium flows in the heat exchanger and exchanges heat with another medium in the heat exchange pipeline 5-3. Since the heat exchange pipeline 5-3 is S-shaped and coiled, the medium can fully contact with the pipe wall when flowing in it, so that efficient heat transfer is realized. In the heat exchange process, the sealing layer 7 and the tight fit of each connecting part ensure that the medium does not leak.
[0057] When it is necessary to check or replace the heat exchange pipeline 5-3, the telescopic air cylinder 6-1 is started to make the outer cover 4 slide outward along the sliding rail groove 6-2 to open. Since the bottom of the outer cover 4 is slidingly connected with the fixed sliding rail 8, the opening process of the outer cover 4 is stable. After the outer cover 4 is opened, the inner threaded block 5-8 with a polygonal outer surface is screwed using a tool to detach the sealing plate 5-2 from the outer cover 4. The corrosion condition of the heat exchange pipeline 5-3 is checked. For the damaged heat exchange pipeline 5-3, the sealing plate 5-2 is directly replaced or the heat exchange pipeline 5-3 is repaired. After the maintenance or replacement is completed, the sealing plate 5-2 is reinstalled into the mounting groove 5-1 of the outer cover 4, the inner threaded block 5-8 is tightened, the outer cover 4 is closed, the telescopic air cylinder 6-1 is started to reset the outer cover 4, and the sliding rail frame 6-3 is accurately slid into the sliding rail groove 6-2 to complete the maintenance and repair work of the equipment, so that the heat exchanger can continue to operate normally.
[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and they should be covered in the scope of the claims of the present disclosure.
Claims
1. A heat exchanger for formate preparation, characterized in that, include: A base plate (1) and a shell (2), wherein the shell (2) is fixed to the top of the base plate (1); A pair of connecting pipes (3) are respectively connected to the top and bottom of the outer shell (2); The outer cover (4) and the telescopic switch assembly (6) are provided outside the outer shell (2) and the telescopic switch assembly (6) is provided between the outer cover (4) and the outer shell (2); Heat exchange connection assembly (5), which is disposed on the outer cover (4); The heat exchange connection assembly (5) includes a mounting groove (5-1), which is formed on the side surface of the outer cover (4). A sealing plate (5-2) is installed in the mounting groove (5-1), and a plurality of heat exchange pipes (5-3) are provided on the surface of the sealing plate (5-2).
2. The heat exchanger for formate preparation according to claim 1, characterized in that, The sealing plate (5-2) has a mating groove (5-4) on its side surface, which is connected to the heat exchange pipe (5-3). The outer cover (4) has a pair of connecting pipes (5-5) on its side surface, and the mounting groove (5-1) has a number of mating nozzles (5-6) inside.
3. A heat exchanger for formate preparation according to claim 2, characterized in that, The connecting pipe (5-5) is connected to the docking nozzle (5-6), the sealing plate (5-2) is fixedly connected to the outer cover (4) by bolts, and the side surface of the sealing plate (5-2) is provided with connecting studs (5-7).
4. A heat exchanger for formate preparation according to claim 3, characterized in that, The connecting stud (5-7) passes through the surface of the outer cover (4), and the inner thread block (5-8) is rotatably fitted onto the side surface of the outer cover (4). The inner thread block (5-8) and the connecting stud (5-7) are connected by screwing.
5. A heat exchanger for formate preparation according to claim 1, characterized in that, The telescopic switch assembly (6) includes several telescopic cylinders (6-1), which are fixed at the upper and lower ends of the two sides of the outer shell (2) respectively, and the output end of the telescopic cylinder (6-1) is connected to the outer cover (4).
6. A heat exchanger for formate preparation according to claim 5, characterized in that, The top and bottom of the outer shell (2) are provided with slide rail grooves (6-2), and a pair of slide rail brackets (6-3) are provided on the side surface of the outer cover (4). The slide rail brackets (6-3) are slidably connected in the slide rail grooves (6-2).
7. A heat exchanger for formate preparation according to claim 1, characterized in that, A sealing layer (7) is provided around the inner surface of the mounting groove (5-1).
8. A heat exchanger for formate preparation according to claim 4, characterized in that, The outer surface of the internal threaded block (5-8) has a polygonal structure.
9. A heat exchanger for formate preparation according to claim 1, characterized in that, The bottom plate (1) is provided with a pair of fixed slide rails (8), and the bottom of the outer cover (4) is slidably connected to the fixed slide rails (8).
10. A heat exchanger for formate preparation according to claim 1, characterized in that, The heat exchange pipe (5-3) is S-shaped and coiled around the sealing plate (5-2).