Finned tube type vaporizer for carbonic acid preparation
By introducing a filter screen to remove impurities and an interlaced guide plate design into the vaporizer, the problems of impurity accumulation and insufficient heat exchange in liquid carbon dioxide are solved, realizing a finned tube vaporizer with rapid vaporization and convenient maintenance, meeting the needs of large-scale carbon dioxide production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-03
AI Technical Summary
Existing vaporizers lack effective filtration devices, and impurities and particles are easily mixed into liquid carbon dioxide during storage, transportation and delivery, leading to blockage and wear. At the same time, the flow channel design is simple, heat exchange is insufficient, the vaporization rate of liquid carbon dioxide is slow, which cannot meet the needs of large-scale carbon dioxide production, and the fin structure is not convenient to disassemble and replace.
A finned tube vaporizer was designed, which includes a filter assembly and an assembly assembly. The filter assembly removes impurities through a filter screen, and the assembly assembly ensures the fin installation accuracy through positioning bolts and locking components. The guide plate increases the tortuosity of the flow path and improves the heat exchange efficiency.
It effectively removes impurities, avoids clogging and wear, improves heat exchange efficiency, simplifies fin installation and disassembly, and increases carbon dioxide production output and equipment maintenance efficiency.
Smart Images
Figure CN223965920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of finned tube vaporizers, specifically a finned tube vaporizer for carbonic acid preparation. Background Technology
[0002] In the process of carbonic acid preparation, the finned tube vaporizer is a crucial piece of equipment. Its main function is to convert liquid carbon dioxide into gaseous carbon dioxide, providing reactants in a suitable state for the subsequent synthesis of carbonic acid.
[0003] As liquid carbon dioxide flows into the finned tube, it exchanges heat with the tube wall and fins. An external heat source continuously transfers heat to the finned tube, causing the liquid carbon dioxide inside to absorb heat and its temperature to rise. With continued heat absorption, the liquid carbon dioxide gradually reaches its boiling point and begins to vaporize, forming a gas-liquid two-phase mixture inside the tube. As vaporization progresses, the liquid carbon dioxide continuously transforms into gaseous carbon dioxide, which gradually accumulates inside the tube and flows out from the outlet of the finned tube vaporizer, entering the subsequent carbonic acid preparation equipment to react with water to produce carbonic acid.
[0004] In the treatment of liquid carbon dioxide, existing vaporizers lack effective filtration devices. During storage, transportation, and delivery, liquid carbon dioxide is easily mixed with impurities and particles. After entering the vaporizer with the liquid carbon dioxide, these impurities gradually accumulate in the fins and pipes, causing blockages and wear. In addition, the internal flow channel design of traditional vaporizers is relatively simple, and the flow path of liquid carbon dioxide in the tubular body is single, resulting in limited contact time and area with the fins and pipe walls. This leads to insufficient heat exchange and slow vaporization speed of liquid carbon dioxide, which cannot meet the production needs of large-scale carbon dioxide preparation. At the same time, the fins are usually of integral structure, which is not convenient for individual disassembly and replacement. Therefore, this utility model provides a finned tubular vaporizer for carbon dioxide preparation. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a finned tube vaporizer for carbon dioxide preparation. It solves the problem of existing vaporizers lacking effective filtration devices, allowing impurities and particles to easily mix into liquid carbon dioxide during storage, transportation, and delivery. These impurities accumulate in the fins and pipes after entering the vaporizer, causing blockages and wear. Furthermore, the flow channel design inside traditional vaporizers is relatively simple, resulting in a single flow path for liquid carbon dioxide within the tube body. This limited contact time and area with the fins and pipe walls leads to insufficient heat exchange and slow vaporization, failing to meet the production demands of large-scale carbon dioxide preparation. Additionally, the fins are typically an integral structure, making individual disassembly and replacement inconvenient.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a finned tube vaporizer for carbonic acid preparation, comprising a tubular body, wherein the tubular body is provided with a connecting mechanism for the finned tube vaporizer for carbonic acid preparation, the connecting mechanism comprising:
[0007] The assembly includes a first fin that is engaged with the outer wall of a tubular body, a second fin that is connected to the inner side of the first fin by a positioning component, and a locking component for fixing the top of the second fin.
[0008] The filter assembly includes a tubular body with a feed housing fixed to one end. A flange bracket connected by screws is provided on one side of the feed housing. A filter screen connected by a fixing component is provided on the inner side of the flange bracket inside the feed housing.
[0009] Preferably, the positioning component includes a positioning bolt fixed to the inner wall of the first fin, the second fin being in close contact with the first fin, and a positioning hole being formed on the contact surface of the second fin and the first fin, wherein the positioning bolt and the positioning hole are of the same size.
[0010] Preferably, the locking assembly includes a vertical block fixed to the upper end of the second fin, a locking plate rotatably connected to the top of the vertical block via a rotating shaft, a bolt inside the locking plate, a locking bracket fixed to the upper end face of the first fin, and an installation groove for fitting and connecting with the locking plate on the side wall of the locking bracket.
[0011] Preferably, a limiting ring is uniformly fixed to the outer wall of the tubular body, and the first fin and the second fin are fitted and connected to the inner wall of the limiting ring.
[0012] Preferably, the fixing assembly includes four sets of fixing rods fixed to the inner wall of the feed housing by the flange bracket, one end of the fixing rod is fixed to a fixing bracket, and the filter screen is fixedly connected to the fixing bracket.
[0013] Preferably, the inner wall of the tubular body is fixed with inclined guide plates, which are staggered. Beneficial effects
[0014] This invention provides a finned tube vaporizer for carbon dioxide preparation. Compared with the prior art, it has the following advantages:
[0015] Firstly, the first and second fins of this invention are engaged with the inner wall of the limiting ring of the tubular body. Then, the first and second fins are positioned and engaged with the positioning holes through positioning bolts, which can ensure the accurate installation position of the fins on the tubular body and guarantee the relative positional accuracy between the fins and the tubular body. Finally, the locking plate of the second fin is rotated to the inner wall of the mounting groove on the locking bracket, and the bolt is rotated to install the first and second fins. The operation is relatively simple and can quickly complete the installation and fixing of the fins. Disassembly only requires loosening the bolts, without complicated tools and cumbersome steps, which is conducive to the maintenance, repair and replacement of the equipment and can effectively reduce equipment downtime.
[0016] Secondly, the liquid carbon dioxide in this invention first passes through a filter screen, which removes any impurities and particles that may be present, ensuring the purity of the liquid carbon dioxide entering the tubular body. This prevents impurities from clogging or wearing the fins and pipes, ensuring the normal operation and service life of the vaporizer. After filtration, the liquid carbon dioxide enters the tubular body. Inside the tubular body, staggered inclined guide plates guide the flow of the liquid carbon dioxide, creating a more tortuous flow path. This increases the contact time and area between the liquid carbon dioxide and the fins and pipe walls, thereby improving heat exchange efficiency. This allows for faster and more complete vaporization of the liquid carbon dioxide into a gaseous state, improving the overall working efficiency of the vaporizer. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the positioning and connection structure of the first and second fins of this utility model.
[0019] Figure 3 This is a schematic diagram of the locking connection structure between the first fin and the second fin of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the tubular main body of this utility model.
[0021] In the diagram: 1. Tubular body; 2. Limiting ring; 201. First fin; 202. Second fin; 203. Positioning hole; 204. Positioning bolt; 3. Feeding shell; 301. Flange bracket; 302. Fixing rod; 303. Fixing bracket; 304. Filter screen; 4. Guide plate; 5. Vertical block; 501. Locking plate; 502. Bolt; 503. Locking bracket; 504. Mounting groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution: a finned tube vaporizer for carbonic acid preparation, comprising a tubular body 1, on which a connecting mechanism for the finned tube vaporizer for carbonic acid preparation is provided, the connecting mechanism comprising:
[0024] The assembly includes a first fin 201 that is engaged with the outer wall of the tubular body 1, a second fin 202 that is connected to the inner side of the first fin 201 by a positioning component, and a locking component for fixing that is provided at the top of the second fin 202.
[0025] The filter assembly includes a tubular body 1 with a feed housing 3 fixed at one end. A flange bracket 301 connected by screws is provided on one side of the feed housing 3. A filter screen 304 connected by a fixing component is provided on the inner side of the flange bracket 301 inside the feed housing 3.
[0026] In a preferred embodiment, the positioning assembly includes a positioning bolt 204 fixed to the inner wall of the first fin 201, a second fin 202 in close contact with the first fin 201, a positioning hole 203 on the contact surface of the second fin 202 and the first fin 201, and the positioning bolt 204 having the same size as the positioning hole 203. The locking assembly includes a vertical block 5 fixed to the upper end of the second fin 202, a locking plate 501 rotatably connected to the top of the vertical block 5 via a rotating shaft, a bolt 502 inside the locking plate 501, a locking bracket 503 fixed to the upper end face of the first fin 201, and an installation groove 504 on the side wall of the locking bracket 503 that is in close contact with the locking plate 501. Limiting rings 2 are uniformly fixed to the outer wall of the tubular body 1, and the first fin 201 and the second fin 202 are connected to the limiting rings 2. The inner wall is fitted together, and the first fin 201 and the second fin 202 are engaged on the inner wall of the limiting ring 2 of the tubular body 1. Then, the first fin 201 and the second fin 202 are positioned and engaged with the positioning hole 203 through the positioning bolt 204, which can ensure the accurate installation position of the fins on the tubular body 1 and ensure the relative position accuracy between the fins and the tubular body 1. Finally, the locking plate 501 of the second fin 202 is rotated to the inner wall of the mounting groove 504 on the locking bracket 503, and the first fin 201 and the second fin 202 are installed by rotating the bolt 502. The operation is relatively simple and can quickly complete the installation and fixing of the fins. When disassembling, only the bolt 502 needs to be loosened. No complicated tools and cumbersome steps are required, which is conducive to the maintenance, repair and replacement of the equipment and can effectively reduce the downtime of the equipment.
[0027] In a preferred embodiment, the fixing assembly includes a flange bracket 301 fixed to four sets of fixing rods 302 located on the inner wall of the feed housing 3. One end of each fixing rod 302 is fixed to a fixing bracket 303. A filter screen 304 is fixedly connected to the fixing bracket 303. An inclined guide plate 4 is fixed to the inner wall of the tubular body 1. The guide plates 4 are staggered. Liquid carbon dioxide enters the finned tube vaporizer from the feed housing 3. The liquid carbon dioxide first passes through the filter screen 304, which filters the incoming liquid carbon dioxide to remove any impurities, particles, etc., ensuring the purity of the liquid carbon dioxide entering the tubular body 1 and preventing impurities from affecting the fins and pipes. To prevent blockages or wear and ensure the normal operation and service life of the vaporizer, the filtered liquid carbon dioxide enters the tubular body 1. Inside the tubular body 1, the staggered inclined guide plates 4 guide the flow of liquid carbon dioxide, making the liquid carbon dioxide form a more tortuous flow path within the tubular body 1. This increases its contact time and area with the fins and tube walls, thereby improving heat exchange efficiency. It can vaporize liquid carbon dioxide into gas more quickly and fully, improving the overall working efficiency of the vaporizer and thus increasing the output of carbonic acid production. After the liquid carbon dioxide completes vaporization in the tubular body 1, it is output from the vaporizer in gaseous form and enters the subsequent carbonic acid production process.
[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0029] During operation, liquid carbon dioxide first enters the finned tube vaporizer from the feed shell 3. Then, the liquid carbon dioxide first passes through the filter screen 304, which filters the incoming liquid carbon dioxide to remove any impurities and particles, ensuring the purity of the liquid carbon dioxide entering the tube body 1. This prevents impurities from clogging or wearing the fins and pipes, ensuring the normal operation and service life of the vaporizer. After filtration, the liquid carbon dioxide enters the tube body 1. Inside the tube body 1, the staggered inclined guide plates 4 guide the flow of liquid carbon dioxide, creating a more tortuous flow path. This increases the contact time and area between the liquid carbon dioxide and the fins and pipe walls, thereby improving heat exchange efficiency. This allows the liquid carbon dioxide to be vaporized into a gaseous state more quickly and fully, improving the overall working efficiency of the vaporizer and thus increasing the output of carbonic acid production. After vaporization in the tube body 1, the liquid carbon dioxide is output from the vaporizer in gaseous form and enters the subsequent carbonic acid production process.
[0030] Then, the first fin 201 and the second fin 202 are engaged on the inner wall of the limiting ring 2 of the tubular body 1. The first fin 201 and the second fin 202 are then positioned and engaged with the positioning hole 203 by the positioning bolt 204, which ensures that the fins are accurately installed on the tubular body 1 and guarantees the relative positional accuracy between the fins and the tubular body 1. Finally, the locking plate 501 of the second fin 202 is rotated to the inner wall of the mounting groove 504 on the locking bracket 503, and the bolt 502 is rotated to install the first fin 201 and the second fin 202. The operation is relatively simple and can quickly complete the installation and fixing of the fins. When disassembling, only the bolt 502 needs to be loosened. No complicated tools and cumbersome steps are required, which is beneficial to the maintenance of the equipment.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A finned tube vaporizer for carbonic acid production comprising a tubular body (1), characterized by: The tubular body (1) is provided with a connecting mechanism of the finned tube vaporizer for carbonic acid preparation, and the connecting mechanism comprises: An assembling assembly is arranged on the outer wall of the tubular body (1), and the first fin (201) is clamped on the outer wall of the tubular body (1), the inner side of the first fin (201) is provided with the second fin (202) connected through a positioning assembly, and the top end of the second fin (202) is provided with a locking assembly for fixation; A filtering assembly is arranged on one end of the tubular body (1), and the feeding shell (3) is fixed on the one end of the tubular body (1), one side of the feeding shell (3) is provided with the flange support (301) connected through a screw, and the inner side of the flange support (301) located on the feeding shell (3) is provided with the filter screen (304) connected through a fixing assembly.
2. A finned tube vaporizer for carbonic acid production according to claim 1, characterized in that: The positioning assembly comprises the positioning bolt (204) fixed on the inner wall of the first fin (201), the second fin (202) is connected in close contact with the first fin (201), the second fin (202) is provided with the positioning hole (203) on the close contact surface of the first fin (201), and the positioning bolt (204) is consistent in size with the positioning hole (203).
3. A finned tube vaporizer for carbonic acid production according to claim 1, characterized in that: The locking assembly comprises the vertical block (5) fixed on the upper end of the second fin (202), the top end of the vertical block (5) is provided with the locking plate (501) rotatably connected through a rotating shaft, the inner side of the locking plate (501) is provided with the bolt (502), the upper end surface of the first fin (201) is fixed with the locking support (503), and the side wall of the locking support (503) is provided with the mounting groove (504) connected in close contact with the locking plate (501).
4. A finned tube vaporizer for carbonic acid production according to claim 1, characterized in that: The outer wall of the tubular body (1) is uniformly fixed with the limiting ring (2), and the first fin (201) and the second fin (202) are connected in close contact with the inner wall of the limiting ring (2).
5. A finned tube vaporizer for carbonic acid production according to claim 1, characterized in that: The fixing assembly comprises four groups of fixing rods (302) fixed on the inner wall of the feeding shell (3), one end of the fixing rod (302) is fixed with the fixing support (303), and the filter screen (304) is fixedly connected with the fixing support (303).
6. A finned tube vaporizer for carbonic acid production according to claim 1, characterized in that: The inner wall of the tubular body (1) is fixed with the inclined flow guide plate (4), and the flow guide plates (4) are arranged in a staggered manner.