Circulating cooling device for glycine production
By improving the reflux heat dissipation and cooling components of the circulating cooling device used in glycine production, the problems of easy contamination of the cooling medium and energy waste were solved, achieving efficient and energy-saving temperature control and improving the efficiency and quality of glycine production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG DONGHUA JINLONG CHEM IND CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-12
AI Technical Summary
现有的甘氨酸生产用循环冷却装置吸热降温性能欠佳，能源利用效率低，冷却介质易受污染，导致反应温度不稳定，影响产物质量和产量，且维护成本高。
A circulating cooling device including a recirculation heat dissipation component and a cooling component was designed. The recirculation heat dissipation component achieves initial heat dissipation through an S-shaped recirculation pipe, a sleeve, an air inlet, and a fan. The cooling component works in concert with components such as a flow buffer, dispersion holes, a refrigeration compressor, a cooling base, and a fan to improve heat exchange efficiency and temperature stability.
It improves the heat dissipation efficiency of the cooling medium, reduces energy consumption, reduces maintenance costs, ensures the stability of the reaction temperature during glycine production, and improves product quality and yield.
Smart Images
Figure CN224230488U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of equipment related to glutamic acid production, and more specifically, to a circulating cooling device for glycine production. Background Technology
[0002] In glycine production, temperature control is a key factor in ensuring smooth production and improving product quality and yield. The circulating cooling system in glycine production plays a crucial role in maintaining a stable temperature inside the reactor. Through circulating cooling media, it creates the optimal temperature environment for the chemical reaction. This not only ensures efficient reaction and improves product quality and yield, but also effectively prevents reaction runaway caused by abnormal temperatures, thus preventing product quality degradation and other problems. Therefore, it plays an indispensable role in glycine production.
[0003] However, existing circulating cooling devices have several problems that urgently need to be addressed. First, their heat absorption and cooling performance is poor, making it difficult to achieve rapid cooling. In certain critical stages of glycine production, the reaction releases a large amount of heat, requiring a cooling device to quickly remove this heat to maintain a stable temperature. However, existing devices cannot respond in time, leading to temperature fluctuations within the reactor, affecting the reaction process, and reducing product quality and yield.
[0004] Secondly, existing equipment suffers from low energy efficiency and serious energy waste. To achieve cooling, the equipment often consumes a large amount of energy but fails to fully realize its cooling effect, which undoubtedly increases production costs and runs counter to the current advocacy of energy conservation and emission reduction.
[0005] Furthermore, the cooling medium is susceptible to contamination. During circulation, the cooling medium comes into contact with various impurities, leading to a decline in its performance and consequently affecting the cooling effect. To ensure the normal operation of the device, the cooling medium needs to be regularly maintained, inspected, and replaced, which not only consumes a lot of manpower and resources but also significantly increases maintenance costs.
[0006] With the continuous growth of market demand for glycine, the requirements for production efficiency and product quality are also increasing. These shortcomings of traditional circulating cooling devices severely restrict the development of the glycine production industry. Therefore, it is urgent to develop a highly efficient, energy-saving circulating cooling device for glycine production that features a cooling medium less prone to contamination and low maintenance costs. This is of significant practical importance for enhancing the competitiveness of glycine production enterprises and promoting the sustainable development of the industry. Utility Model Content
[0007] To overcome the above-mentioned defects, the embodiments of this disclosure provide a circulating cooling device for glycine production, which solves the technical problem that the cooling medium is easily contaminated in the prior art, and that the cooling medium comes into contact with various impurities during the circulation process, resulting in a decline in its performance and thus affecting the cooling effect.
[0008] According to one aspect, at least one embodiment of this disclosure provides a circulating cooling apparatus for glycine production, comprising:
[0009] The system includes a base plate, a circulation tank, and a vertical plate, with the circulation tank and the vertical plate all fixed to the surface of the base plate.
[0010] A circulating pump and a reflux heat dissipation assembly are provided. The circulating pump is fixed on the surface of the base plate, and the liquid inlet of the circulating pump is connected to the circulating tank. The reflux heat dissipation assembly is installed on the vertical plate.
[0011] An inner cover and a cooling component are provided, wherein the inner cover is disposed inside the circulation chamber and the cooling component is disposed inside the circulation chamber;
[0012] The recirculation heat dissipation assembly includes a recirculation pipe, which is disposed on both sides of the vertical plate. Several sleeves are disposed on both sides of the vertical plate, and the sleeves are fitted onto the outside of the recirculation pipe. One end of the recirculation pipe is connected to the inner cover.
[0013] As a further technical solution, the interior of the upright plate is hollow, and several air inlets are provided on both sides of the upright plate. The air inlets correspond to the positions of the return pipes, and several first fans are provided on the top of the upright plate.
[0014] As a further technical solution, the cooling component includes a flow-slowing hood, which is disposed inside the circulation box and located below the inner cover. Dispersion holes are provided on the side surface of the inner cover.
[0015] As a further technical solution, a refrigeration compressor is provided on the outside of the circulation box, a cooling seat is provided inside the flow shroud, the refrigeration part of the refrigeration compressor is connected inside the cooling seat, and the bottom of the cooling seat is located inside the circulation box.
[0016] As a further technical solution, a dispersing rod is provided on one side of the cooling seat, the top of the circulation box has a concave structure, and a number of second fans are provided on the surface of the concave part of the top of the circulation box. The surface of the circulation box located at the second fans has a closed structure.
[0017] As a further technical solution, the upper surface of the flow shroud has a stepped structure with an inclined transition.
[0018] As a further technical solution, the return pipe is in an S-shaped structure, coiled around both sides of the vertical plate.
[0019] As a further technical solution, the dispersion hole is located at the highest position of the flow-slowing hood.
[0020] The beneficial effects of the embodiments disclosed herein are as follows:
[0021] 1. The beneficial effect of the recirculation cooling component in this disclosure is that the S-shaped recirculation pipe increases the pipe length and heat dissipation area, allowing the cooling medium more opportunities to exchange heat with the outside environment during the recirculation process. The bracket fixes the recirculation pipe, ensuring its stability. The cooperation between the air inlet and the first fan utilizes airflow to remove heat, achieving initial heat dissipation of the recirculating cooling medium. This not only reduces the burden on subsequent cooling stages but also improves the overall efficiency of the cooling system. Moreover, this initial heat dissipation method can lower the temperature of the cooling medium, reduce the working pressure of the refrigeration compressor, thereby reducing energy consumption and meeting the requirements of energy conservation and emission reduction.
[0022] 2. In this disclosure, the beneficial effects of the cooling component are as follows: the stepped structure of the flow-slowing shroud slows down the flow rate of the cooling medium, prolongs its contact time with the refrigeration components, and improves heat exchange efficiency. The dispersion holes ensure that the returning cooling medium is evenly dispersed, guaranteeing sufficient cooling throughout the circulation chamber. The refrigeration compressor works closely with the cooling base to directly cool the cooling medium within the circulation chamber. The dispersion rod further enhances the uniformity of the cooling effect. The second fan accelerates airflow within the chamber, working in conjunction with the refrigeration components to rapidly reduce the temperature within the circulation chamber. These components work together to maintain the low temperature of the circulating cooling medium, ensuring stable reaction temperatures during glycine production and improving product quality and yield. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0024] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0025] Figure 2 This is an isometric drawing of the present disclosure;
[0026] Figure 3 This is an isometric sectional view of the present disclosure;
[0027] In the diagram: 1. Base plate; 2. Circulation box; 3. Vertical plate; 4. Circulation pump; 5. Inner cover; 6. Recirculation heat dissipation assembly; 6-1. Recirculation pipe; 6-2. Sleeve; 6-3. Air inlet; 6-4. First fan; 7. Cooling assembly; 7-1. Flow shroud; 7-2. Dispersion hole; 7-3. Refrigeration compressor; 7-4. Cooling base; 7-5. Dispersion rod; 7-6. Second fan. Detailed Implementation
[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] 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.
[0033] 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.
[0034] like Figures 1-3As shown, a circulating cooling apparatus for glycine production according to an embodiment of the present disclosure is illustrated, comprising:
[0035] The base plate 1, the circulation box 2, and the upright plate 3 are all fixed to the surface of the base plate 1.
[0036] The circulating pump 4 and the reflux heat dissipation assembly 6 are provided. The circulating pump 4 is fixed on the surface of the base plate 1. The liquid inlet of the circulating pump 4 is connected to the circulating tank 2. The reflux heat dissipation assembly 6 is installed on the vertical plate 3.
[0037] The inner cover 5 and the cooling component 7 are disposed inside the circulation box 2.
[0038] The recirculation heat dissipation assembly 6 includes a recirculation pipe 6-1, which is disposed on both sides of the vertical plate 3. Several sleeves 6-2 are disposed on both sides of the vertical plate 3. The sleeves 6-2 are fitted onto the outside of the recirculation pipe 6-1. One end of the recirculation pipe 6-1 is connected to the inner cover 5. The interior of the vertical plate 3 is a hollow structure. Several air inlets 6-3 are opened on both sides of the vertical plate 3. The air inlets 6-3 are positioned corresponding to the recirculation pipe 6-1. Several first fans 6-4 are disposed on the top of the vertical plate 3.
[0039] In some examples, in the circulating cooling process of glycine production, a reflux cooling assembly 6 is designed to achieve preliminary heat dissipation of the reflux liquid. This assembly is centered on reflux pipes 6-1 set on both sides of the vertical plate 3, which are used to transport the reflux-cooled liquid. Several brackets 6-2 set on both sides of the vertical plate 3 are fitted onto the outside of the reflux pipes 6-1 to fix and support them, ensuring their stable installation. One end of the reflux pipes 6-1 is connected to the inner cover 5 inside the circulation tank 2, forming a reflux channel for the cooling liquid. The interior of the vertical plate 3 is a hollow structure, and several air inlets 6-3 on both sides correspond to the positions of the reflux pipes 6-1. The heat generated by the reflux pipes 6-1 on both sides can enter the interior of the vertical plate 3 through the air inlets 6-3. Several first fans 6-4 set on the top of the vertical plate 3 can accelerate airflow when operating, causing air to quickly pass through the interior of the vertical plate 3 and carry away the heat on the surface of the reflux pipes 6-1, thereby achieving preliminary heat dissipation of the liquid inside the reflux pipes 6-1.
[0040] Through the coordinated operation of components such as the return pipe 6-1, the sleeve 6-2, the air inlet 6-3, and the first fan 6-4, the return heat dissipation assembly 6 achieves the function of initial heat dissipation of the liquid in the return pipe 6-1, reducing the burden on the subsequent cooling process.
[0041] like Figures 1-3As shown in the figure, the cooling component 7 in this embodiment includes a flow-retardant 7-1, which is disposed inside the circulation box 2 and below the inner cover 5. The inner cover 5 has a dispersion hole 7-2 on its side surface. A refrigeration compressor 7-3 is disposed outside the circulation box 2. A cooling seat 7-4 is disposed inside the flow-retardant 7-1. The refrigeration part of the refrigeration compressor 7-3 is connected to the inside of the cooling seat 7-4. The bottom of the cooling seat 7-4 is located inside the circulation box 2. A dispersion rod 7-5 is disposed on one side of the cooling seat 7-4. The top of the circulation box 2 has a concave structure. Several second fans 7-6 are disposed on the surface of the concave part of the top of the circulation box 2. The surface of the circulation box 2 located at the second fans 7-6 has a closed structure.
[0042] In some examples, during the operation of the circulating cooling device for glycine production, a cooling component 7 was designed to achieve rapid cooling of the water in the circulating tank 2 and maintain the low temperature of the circulating liquid.
[0043] This component includes a flow-damping shroud 7-1 located inside the circulation tank 2 and below the inner cover 5, which slows down the flow rate of the circulating water, allowing more time for heat exchange. Dispersion holes 7-2 on the side surface of the inner cover 5 allow the cooling liquid returning from the return pipe 6-1 to be evenly distributed within the circulation tank 2. A refrigeration compressor 7-3 located outside the circulation tank 2 has its refrigeration section connected to a cooling seat 7-4 inside the flow-damping shroud 7-1. The bottom of the cooling seat 7-4 extends into the circulation tank 2, directly cooling the water within it. A dispersion rod 7-5 on one side of the cooling seat 7-4 further absorbs heat, resulting in a more uniform cooling effect. The top of the circulation tank 2 has a concave structure, with several second fans 7-6 on the surface of the concave portion. When operating, these fans accelerate airflow within the circulation tank 2, working in conjunction with the refrigeration compressor 7-3 to rapidly reduce the temperature of the circulation tank 2, ensuring it remains at a low temperature for circulating cooling and improving the overall cooling effect.
[0044] Through the coordinated operation of components such as the flow shroud 7-1, dispersion hole 7-2, refrigeration compressor 7-3, cooling base 7-4, dispersion rod 7-5, and second fan 7-6, the cooling assembly 7 achieves the function of rapidly cooling the water in the circulation tank 2 and maintaining the low temperature of the circulation.
[0045] For example, such as Figure 3 As shown, the upper surface of the flow shroud 7-1 has a stepped structure with an inclined transition.
[0046] In some examples, a stepped structure can create a slow-flow effect, improving the cooling efficiency of the water during recirculation.
[0047] For example, such as Figure 1As shown, the return pipe 6-1 has an overall S-shaped structure and is coiled around both sides of the vertical plate 3.
[0048] In some examples, the formation of the return pipe 6-1 can be increased through an S-shaped structure, thereby improving the heat dissipation effect.
[0049] For example, such as Figure 3 As shown, the dispersion hole 7-2 is located at the highest position of the flow shroud 7-1.
[0050] In some examples, the incoming water is ensured to flow downwards at the highest point, increasing the flow range.
[0051] In actual use: First, install the circulating cooling device for glycine production next to the glycine production equipment, ensuring that the base plate 1 is placed stably. Connect the circulating pump 4 to the external cooling medium supply pipeline, start the circulating pump 4, and the cooling medium will be drawn from the circulating tank 2 and transported to the cooling part of the production equipment through the circulating pump 4. After absorbing heat and heating up, the cooling medium enters the return pipe 6-1 through the inner cover 5. The return pipe 6-1 is coiled around both sides of the vertical plate 3. The sleeves 6-2 on both sides of the vertical plate 3 fix the pipe. The first fan 6-4 runs, and air flows from the inlet... The air vent 6-3 enters the hollow structure of the vertical plate 3, carrying away the heat from the return pipe 6-1 to achieve initial heat dissipation. The cooled medium after heat dissipation flows back to the circulation box 2 and flows out from the dispersion hole 7-2 of the inner cover 5, falling onto the flow slow cover 7-1. The flow slow cover 7-1 slows down the water flow speed. The refrigeration compressor 7-3 cools the cooling seat 7-4. The cooling seat 7-4 and the dispersion rod 7-5 absorb the heat of the cooling medium. The second fan 7-6 accelerates the air flow in the circulation box 2, further reducing the temperature. The cooled medium is then drawn out again by the circulation pump 4 to participate in the circulation.
[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A circulating cooling device for glycine production, characterized in that, include: The base plate (1), the circulation box (2), and the upright plate (3) are all fixed to the surface of the base plate (1); A circulating pump (4) and a reflux heat dissipation assembly (6) are provided. The circulating pump (4) is fixed on the surface of the base plate (1). The liquid inlet of the circulating pump (4) is connected to the circulating tank (2). The reflux heat dissipation assembly (6) is installed on the vertical plate (3). The inner cover (5) and the cooling component (7) are disposed inside the circulation box (2). The recirculation heat dissipation assembly (6) includes a recirculation pipe (6-1), which is disposed on both sides of the vertical plate (3). Several sleeves (6-2) are disposed on both sides of the vertical plate (3). The sleeves (6-2) are fitted onto the outside of the recirculation pipe (6-1). One end of the recirculation pipe (6-1) is connected to the inner cover (5).
2. The circulating cooling device for glycine production according to claim 1, characterized in that, The interior of the upright plate (3) is hollow. Several air inlets (6-3) are provided on both sides of the upright plate (3). The air inlets (6-3) correspond to the position of the return pipe (6-1). Several first fans (6-4) are provided on the top of the upright plate (3).
3. The circulating cooling device for glycine production according to claim 1, characterized in that, The cooling component (7) includes a flow shroud (7-1), which is located inside the circulation box (2) and below the inner cover (5). The inner cover (5) has dispersion holes (7-2) on its side surface.
4. A circulating cooling device for glycine production according to claim 3, characterized in that, A refrigeration compressor (7-3) is provided on the outside of the circulation box (2), and a cooling seat (7-4) is provided inside the flow shroud (7-1). The refrigeration part of the refrigeration compressor (7-3) is connected inside the cooling seat (7-4), and the bottom of the cooling seat (7-4) is located inside the circulation box (2).
5. A circulating cooling device for glycine production according to claim 4, characterized in that, A dispersing rod (7-5) is provided on one side of the cooling seat (7-4). The top of the circulation box (2) has a concave structure. Several second fans (7-6) are provided on the surface of the concave part of the top of the circulation box (2). The surface of the circulation box (2) located at the second fan (7-6) has a closed structure.
6. A circulating cooling device for glycine production according to claim 3, characterized in that, The upper surface of the flow hood (7-1) has a stepped structure with an inclined transition.
7. A circulating cooling device for glycine production according to claim 1, characterized in that, The return pipe (6-1) has an overall S-shaped structure and is coiled around both sides of the vertical plate (3).
8. A circulating cooling device for glycine production according to claim 3, characterized in that, The dispersion hole (7-2) is located at the highest position of the flow shroud (7-1).