Cooling device for phosphorus trichloride production

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a cooling device for phosphorus trichloride production, which comprises a tubular shell and a material circulation component, a cavity is arranged in the tubular shell, and cooling liquid circulates in the cavity; a feeding collection cover and a discharging collection cover are fixedly arranged at the two ends of the tubular shell respectively; the material circulation assembly comprises a plurality of sealing plates and a material cooling pipe, at least two sealing plates seal the two ends of the cavity of the tubular shell, the material cooling pipe penetrates through the sealing plates and is fixedly connected with the sealing plates, and the two ends of the material cooling pipe communicate with inner cavities of the feeding collecting cover and the discharging collecting cover correspondingly. In order to solve the technical problem that the existing phosphorus trichloride cooling treatment efficiency is not high, the phosphorus trichloride cooling device distributes phosphorus trichloride in a high-temperature state into the material cooling pipes through the arrangement of the material circulation assembly, and then the phosphorus trichloride is uniformly contacted with cooling liquid in the tubular shell through the material cooling pipes, so that the cooling efficiency of the phosphorus trichloride is improved. Therefore, the contact area between the cooling liquid and phosphorus trichloride is increased, and the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a cooling device for phosphorus trichloride production. Background Technology

[0002] The high-temperature gaseous or liquid phosphorus trichloride produced during the production of phosphorus trichloride needs to be cooled to reach the temperature or state required for subsequent processes. With the continuous development of the chemical industry, the requirements for the production efficiency and quality of phosphorus trichloride are becoming increasingly higher. Therefore, the cooling process is crucial in the production of phosphorus trichloride.

[0003] Currently, the cooling process for phosphorus trichloride typically employs traditional coolant cooling methods. However, this method has certain limitations. Existing coolant cooling methods have design flaws, resulting in limited contact area and time with high-temperature phosphorus trichloride, leading to low cooling efficiency and making it difficult to meet the requirements for rapid cooling. Utility Model Content

[0004] To address the problem of low cooling efficiency in existing phosphorus trichloride treatment processes, this invention provides a cooling device for phosphorus trichloride production. By configuring the material flow components, the high-temperature phosphorus trichloride is diverted to various material cooling pipes, and then each material cooling pipe comes into uniform contact with the coolant inside the tubular shell, thereby increasing the contact area between the coolant and phosphorus trichloride and improving the cooling efficiency.

[0005] The technical solution provided by this utility model is as follows: a cooling device for phosphorus trichloride production, comprising a tubular outer shell and a material flow assembly located within the tubular outer shell; the tubular outer shell has a cavity, and a coolant inlet and a coolant outlet communicating with the cavity are provided on the tubular outer shell, with coolant flowing within the cavity; a feed collection hood and a discharge collection hood are respectively fixedly provided at both ends of the tubular outer shell, the feed collection hood having a material inlet and the discharge collection hood having a material outlet; the material flow assembly includes several sealing plates and a material cooling pipe, the sealing plates being arranged parallel to each other along the length of the tubular outer shell, and at least two of the sealing plates sealing both ends of the cavity of the tubular outer shell, the material cooling pipe penetrating the sealing plates and being fixedly connected to the sealing plates, and both ends of the material cooling pipe communicating with the inner cavities of the feed collection hood and the discharge collection hood respectively.

[0006] Optionally, a plurality of guide plates are fixedly disposed inside the cavity, the area of ​​the guide plates being smaller than the cross-sectional area of ​​the cavity, and the guide plates are uniformly arranged along the length direction of the tubular outer shell.

[0007] Optionally, it further includes an auxiliary cooling device, which includes an air inlet hood, an air outlet hood, and a plurality of cooling air ducts; the air inlet hood is fixedly disposed on one side of the material collection hood, and the air inlet hood is provided with an air inlet that communicates with the inner cavity of the air inlet hood; the air outlet hood is fixedly disposed on one side of the material collection hood, and the air outlet hood is provided with an air outlet that communicates with the inner cavity of the air outlet hood; the plurality of cooling air ducts are evenly disposed between the air inlet hood and the air outlet hood, and the two ends of the cooling air ducts are respectively connected to the inner cavity of the air inlet hood and the inner cavity of the air outlet hood, and each cooling air duct is respectively inserted into the inner side of the corresponding material cooling pipe.

[0008] Optionally, the outer diameter of the cooling duct is half the inner diameter of the material cooling duct.

[0009] Optionally, the center of each cooling duct coincides with the center of the corresponding material cooling duct.

[0010] Optionally, the tubular housing and the feed collection hood, as well as the tubular housing and the discharge collection hood, are connected by flanges.

[0011] Optionally, the coolant inlet and the coolant outlet are located at opposite ends of the tubular housing, and the height of the coolant inlet is lower than the height of the coolant outlet.

[0012] Optionally, a mounting bracket is fixedly provided at the bottom of the tubular housing.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: In view of the technical problem of low cooling efficiency of phosphorus trichloride, this utility model, through the setting of the material flow component, diverts the high-temperature phosphorus trichloride to each material cooling pipe, and then the material cooling pipes are evenly in contact with the coolant in the tubular shell, thereby increasing the contact area between the coolant and phosphorus trichloride and thus improving the cooling efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cooling device for phosphorus trichloride production proposed in an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the material flow component proposed in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the auxiliary cooling device proposed in an embodiment of the present invention. Detailed Implementation

[0018] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0019] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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 on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 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. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0020] Combined with appendix Figure 1-3 This embodiment proposes a cooling device for phosphorus trichloride production, including a tubular outer shell 1 and a material flow component located inside the tubular outer shell 1.

[0021] The tubular outer shell 1 has a cavity inside, and the tubular outer shell 1 is provided with a coolant inlet 10 and a coolant outlet 11 that communicate with the cavity. Coolant flows through the cavity.

[0022] The two ends of the tubular outer shell 1 are respectively fixedly provided with a feed collection hood 2 and a discharge collection hood 3. The feed collection hood 2 is provided with a material inlet 20, and the discharge collection hood 3 is provided with a material outlet 30.

[0023] Furthermore, the material flow assembly includes several sealing plates 4 and material cooling pipes 5. The sealing plates 4 are arranged parallel to each other along the length of the tubular outer shell 1, and at least two sealing plates 4 close the two ends of the cavity of the tubular outer shell 1. The material cooling pipes 5 pass through the sealing plates 4 and are fixedly connected to the sealing plates 4. The two ends of the material cooling pipes 5 are respectively connected to the inner cavities of the feed collection hood 2 and the discharge collection hood 3.

[0024] In this embodiment, the tubular housing 1 and the feed collection hood 2, as well as the tubular housing 1 and the discharge collection hood 3, are preferably connected by flanges. Furthermore, the coolant inlet 10 and the coolant outlet 11 are located at opposite ends of the tubular housing 1, with the height of the coolant inlet 10 lower than the height of the coolant outlet 11. Additionally, a mounting bracket 12 is fixedly provided at the bottom of the tubular housing 1 for stable installation of the device.

[0025] The working principle of the cooling device for phosphorus trichloride production in this embodiment is as follows: the phosphorus trichloride material to be cooled enters from the material inlet 20 on the feed collection hood 2. Since there are two sealing plates 4 that close both ends of the cavity of the tubular outer shell 1, the phosphorus trichloride will enter the material cooling pipe 5 under pressure. The phosphorus trichloride is diverted through the material cooling pipe 5 and flows unidirectionally in the material cooling pipe 5. During this process, the material cooling pipe 5 exchanges heat with the surrounding cooling medium, thus achieving preliminary cooling.

[0026] In a further embodiment, several guide plates 6 are fixedly installed inside the cavity. The area of ​​the guide plates 6 is smaller than the cross-sectional area of ​​the cavity, and the guide plates 6 are evenly arranged along the length of the tubular outer shell 1. Due to the presence of the guide plates 6, the flow direction of the coolant flowing into the cavity of the tubular outer shell 1 is continuously changed, thus achieving a deflection effect. During this process, the flow path of the coolant becomes longer, and the contact time with the material cooling pipe 5 also becomes longer. As the coolant continuously contacts the material cooling pipe 5, it can more fully absorb the heat of phosphorus trichloride in the material cooling pipe 5, thereby achieving further cooling of phosphorus trichloride. The cooled coolant flows out from the coolant outlet 11 on the left side of the bottom center of the tubular outer shell 1.

[0027] In a preferred embodiment, the cooling device for phosphorus trichloride production is further provided with an auxiliary cooling device, which includes an air inlet hood 7, an air outlet hood 8, and several cooling air ducts 9.

[0028] The air inlet hood 7 is fixedly installed on one side of the feed collection hood 2, and has an air inlet that communicates with the inner cavity of the air inlet hood 7. The air outlet hood 8 is fixedly installed on one side of the discharge collection hood 3, and has an air outlet that communicates with the inner cavity of the air outlet hood 8. Several cooling air ducts 9 are evenly arranged between the air inlet hood 7 and the air outlet hood 8, with both ends of the cooling air ducts 9 communicating with the inner cavities of the air inlet hood 7 and the air outlet hood 8, respectively, and each cooling air duct 9 is inserted into the inner side of the corresponding material cooling pipe 5.

[0029] In a preferred embodiment, the outer diameter of the cooling duct 9 is half the inner diameter of the material cooling pipe 5, and the center of each cooling duct 9 coincides with the center of the corresponding material cooling pipe 5.

[0030] Based on the auxiliary cooling device, when the phosphorus trichloride material that needs to be cooled is cooled through multiple material cooling pipes 512, cold air can be continuously injected into multiple cooling air pipes 9 through the air inlet. Since the cooling air pipes 9 pass through the inside of the material cooling pipes 5, the cold air can directly exchange heat with the phosphorus trichloride material in the material cooling pipes 5, which greatly improves the cooling efficiency.

[0031] Furthermore, since the outer diameter of the cooling duct 9 is half the inner diameter of the material cooling pipe 5, and the center of the cooling duct 9 coincides with that of the material cooling pipe 5, the cold air can be evenly distributed inside the material cooling pipe 5, further ensuring the uniformity of cooling.

[0032] Multiple cooling ducts 9 are connected to the interior of the air inlet hood 7 and the air outlet hood 8, respectively, allowing the cold air to flow smoothly throughout the entire auxiliary cooling device. The cold air enters the air inlet hood 7 from the air inlet, then enters the cooling ducts 9, exchanges heat with the phosphorus trichloride material in the material cooling pipe 5, and is then discharged from the air outlet hood 8.

[0033] In summary, the cooling device for phosphorus trichloride production in this embodiment, through the synergistic effect of the material cooling pipe 5, the guide plate 6, and the auxiliary cooling device, can quickly and effectively reduce the temperature of phosphorus trichloride material, ensuring the stability of product quality.

[0034] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cooling device for phosphorus trichloride production, characterized by, It comprises a tubular shell (1) and a material flow passing assembly in the tubular shell (1); The tubular shell (1) is provided with a cavity, a cooling liquid inlet (10) and a cooling liquid outlet (11) which are in communication with the cavity, and cooling liquid flows in the cavity; the two ends of the tubular shell (1) are respectively fixedly provided with a feed collecting cover (2) and a discharge collecting cover (3), the feed collecting cover (2) is provided with a material inlet (20), and the discharge collecting cover (3) is provided with a material outlet (30); The material flow passing assembly comprises a plurality of sealing plates (4) and material cooling pipes (5), the sealing plates (4) are arranged in parallel along the length direction of the tubular shell (1), and at least two of the sealing plates (4) seal the two ends of the cavity of the tubular shell (1), the material cooling pipes (5) penetrate through the sealing plates (4) and are fixedly connected with the sealing plates (4), and the two ends of the material cooling pipes (5) are respectively in communication with the inner cavities of the feed collecting cover (2) and the discharge collecting cover (3).

2. The cooling device for producing phosphorus trichloride according to claim 1, characterized by A plurality of guide plates (6) are fixedly arranged in the cavity, the area of the guide plates (6) is smaller than the cross-sectional area of the cavity, and the guide plates (6) are uniformly arranged along the length direction of the tubular shell (1).

3. The cooling device for producing phosphorus trichloride according to claim 1, characterized by It further comprises an auxiliary cooling device, the auxiliary cooling device comprises an air inlet cover (7), an air outlet cover (8) and a plurality of cooling air pipes (9); The air inlet cover (7) is fixedly arranged on one side of the feed collecting cover (2), the air inlet cover (7) is provided with an air inlet, and the air inlet is in communication with the inner cavity of the air inlet cover (7); the air outlet cover (8) is fixedly arranged on one side of the discharge collecting cover (3), the air outlet cover (8) is provided with an air outlet, and the air outlet is in communication with the inner cavity of the air outlet cover (8); A plurality of the cooling air pipes (9) are uniformly arranged between the air inlet cover (7) and the air outlet cover (8), the two ends of the cooling air pipes (9) are respectively in communication with the inner cavities of the air inlet cover (7) and the air outlet cover (8), and each of the cooling air pipes (9) is respectively inserted into the inner side of the corresponding material cooling pipe (5).

4. The cooling device for producing phosphorus trichloride according to claim 3, characterized by The outer diameter of the cooling air pipe (9) is half of the inner diameter of the material cooling pipe (5).

5. The cooling device for producing phosphorus trichloride according to claim 3, characterized by The center of each of the cooling air pipes (9) coincides with the center of the corresponding material cooling pipe (5).

6. The cooling device for producing phosphorus trichloride according to claim 1, characterized by The tubular shell (1) and the feed collecting cover (2) are connected by a flange, and the tubular shell (1) and the discharge collecting cover (3) are connected by a flange.

7. The cooling device for producing phosphorus trichloride according to claim 1, characterized by The cooling liquid inlet (10) and the cooling liquid outlet (11) are respectively located at the two ends of the tubular shell (1), and the height of the cooling liquid inlet (10) is lower than the height of the cooling liquid outlet (11).

8. The cooling device for producing phosphorus trichloride according to claim 1, characterized by The bottom of the tubular shell (1) is fixedly provided with a mounting bracket (12).

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