Rectifying tower with cooling structure

Abstract

The utility model discloses a rectifying tower with a cooling structure. The rectifying tower comprises a rectifying tank and a cooling mechanism, the lower end of the rectification tank is fixedly connected with a second support, the right side of the second support is provided with a first support, the upper end of the first support is provided with a heat exchange bin, the left end of the heat exchange bin is provided with a second discharging pipe, the heat exchange bin is communicated with the rectification tank through a connecting pipe, the front end of the rectification tank is provided with an air inlet pipe, and the rear end of the rectification tank is provided with a feeding pipe; the cooling mechanism is arranged between the second support and the rectification tank, a PLC is arranged at the left end of the surface of the front side of the first support, the input end of the PLC is electrically connected with an external power source, the cooling mechanism comprises a cooling bin, a cooling pipe, a fixing clamp and a water pump, the cooling bin is arranged at the right end of the upper surface of the second support, and the cooling pipe is arranged in the cooling bin. According to the rectifying tower with the cooling structure, rapid circulating cooling work of the rectifying tower can be achieved, and the pesticide rectifying effect of the rectifying tower with the cooling structure is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide production, in particular to a rectifying column with a cooling structure. Background Technique

[0002] A rectifying column is a tower-type gas-liquid contact device for rectification operations, mainly used to separate components with different boiling points in a mixture. The rectifying column utilizes the property that each component in the mixture has different volatilities, that is, the vapor pressures of each component are different at the same temperature, so that the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, while the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation; in the production process of pesticides, the rectification of raw materials has an important impact on the product quality of pesticides, so the rectifying column is an important equipment for pesticide production;

[0003] Some existing rectifying columns use natural cooling to cool the rectifying column.

[0004] Traditional rectifying columns of this kind have the following problems. For example, using natural cooling may affect the cooling efficiency of the rectifying column and may also affect the control effect of the rectifying ratio of pesticide raw materials in the rectifying column. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a rectifying column with a cooling structure, which can realize the rapid circulation cooling of the rectifying column, effectively improve the pesticide rectification effect of the rectifying column with a cooling structure, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a rectifying column with a cooling structure, including a rectifying tank and a cooling mechanism;

[0007] Rectifying tank: fixedly connected to the lower end with a second support, a first support is arranged on the right side of the second support, a heat exchange chamber is arranged at the upper end of the first support, a second discharge pipe is arranged at the left end of the heat exchange chamber, the heat exchange chamber is communicated with the rectifying tank through a connecting pipe, an intake pipe is arranged at the front end of the rectifying tank, and a feed pipe is arranged at the rear end of the rectifying tank;

[0008] Cooling mechanism: It is arranged between the second support and the rectifying tank, can realize the rapid circulation cooling of the rectifying column, and effectively improves the pesticide rectification effect of the rectifying column with a cooling structure.

[0009] Further, a PLC controller is arranged at the left end of the front surface of the first support, and the input end of the PLC controller is electrically connected to an external power supply to control the operation of each electrical appliance.

[0010] Furthermore, the cooling mechanism includes a cooling bin, a cooling pipe, fixing clips, and a water pump. The cooling bin is arranged at the right end of the upper surface of the second bracket. The cooling pipe is wound around the outer surface of the rectifying tank. The fixing clips are evenly and fixedly connected to the outer surface of the rectifying tank, and the inside of each fixing clip is clamped with the cooling pipe. The upper end of the cooling pipe is communicated with the upper end of the cooling bin. A water pump is arranged at the lower end of the left inner wall of the cooling bin. The lower end of the cooling pipe is communicated with the water outlet of the water pump. The input end of the water pump is electrically connected to the output end of the PLC controller to realize the cooling of the rectifying column.

[0011] Furthermore, a uniformly distributed tray is fixedly connected inside the rectifying tank. Through holes are arranged at one ends of the trays far from the center of the rectifying tank. The through holes are vertically staggered. Limiting plates I are fixedly connected to one ends of the through holes close to the center of the rectifying tank. Limiting plates II are fixedly connected to the upper ends of the trays. The limiting plates II are cooperatively installed with the vertically adjacent limiting plates I to effectively improve the contact efficiency of gas-liquid two phases.

[0012] Furthermore, a first discharge pipe is arranged at the lower end of the rectifying tank. An electric valve I is arranged in the middle of the first discharge pipe. An electric valve II is arranged in the middle of the intake pipe. An electric valve IV is arranged in the middle of the feed pipe. The input ends of the electric valve I, the electric valve II, and the electric valve IV are all electrically connected to the output end of the PLC controller to control the inlet and outlet of the gas phase and liquid phase substances.

[0013] Furthermore, a water inlet pipe is arranged at the upper end of the right side surface of the cooling bin. A water outlet pipe is arranged at the lower end of the right side surface of the cooling bin. Electric valves III are arranged in the middle of the water inlet pipe and the water outlet pipe. The input ends of the electric valves III are all electrically connected to the output end of the PLC controller to control the replacement of the cooling water.

[0014] Furthermore, uniformly distributed heat exchange fins are fixedly connected inside the heat exchange bin. The lower end of the heat exchange bin is communicated with the rectifying tank through a return pipe to further improve the rectifying effect.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The rectifying column with a cooling structure has the following advantages:

[0016] Personnel realize the operation of Electric Valve II through the PLC controller, inject hot air into the interior of the rectification tank through the air inlet pipe. The hot air contacts the falling liquid of the pesticide raw materials, extracts the volatile raw materials in the liquid of the pesticide raw materials, making the volatile pesticide raw materials tend to the upper end of the rectification tank, and the pesticide raw materials that are difficult to volatilize fall to the lower end of the rectification tank, thus realizing the rectification treatment of the Xi'an pesticide raw materials. At the same time, the volatile pesticide raw materials enter the interior of the heat exchange chamber through the connecting pipe, and under the action of the heat exchange fins, the condensation effect of the volatile pesticide raw materials is realized. Then, the volatile pesticide raw material products are removed through the discharge pipe II, and the non-volatile pesticide raw materials and the condensed water vapor fall back into the interior of the rectification tank through the return pipe, effectively improving the rectification effect of the pesticide raw materials. During the rectification process of the pesticide raw materials, according to the required rectification ratio of the pesticide raw materials, personnel realize the operation of the water pump through the PLC controller. The water pump pumps the cooling water in the cooling chamber into the interior of the cooling pipe, thus realizing the cooling work of the rectification tank. Then the cooling water falls back into the interior of the cooling chamber, realizing the circulating cooling of the rectification tank, and further realizing the control of the rectification ratio of the pesticide raw materials, and being able to realize the rapid circulating cooling work of the rectification tower, effectively improving the pesticide rectification effect of the rectification tower with a cooling structure. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structural diagram inside the present utility model;

[0019] Figure 3 is a schematic cross-sectional structural diagram at the rear side of the present utility model.

[0020] In the figure: 1 rectification tank, 2 cooling mechanism, 21 cooling chamber, 22 cooling pipe, 23 fixed clamp, 24 water pump, 3 tray, 4 limiting plate I, 5 limiting plate II, 6 heat exchange chamber, 7 heat exchange fins, 8 connecting pipe, 9 return pipe, 10 support I, 11 support II, 12 Electric Valve I, 13 air inlet pipe, 14 Electric Valve II, 15 Electric Valve III, 16 feed pipe, 17 Electric Valve IV, 18 PLC controller. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 3, this embodiment provides a technical solution: a rectification column with a cooling structure, including a rectification tank 1 and a cooling mechanism 2;

[0023] Rectification tank 1: A second support 11 is fixedly connected to the lower end. A first support 10 is arranged on the right side of the second support 11. A heat exchange chamber 6 is arranged at the upper end of the first support 10. A second discharge pipe is arranged at the left end of the heat exchange chamber 6. The heat exchange chamber 6 is communicated with the rectification tank 1 through a connecting pipe 8. An intake pipe 13 is arranged at the front end of the rectification tank 1. A feed pipe 16 is arranged at the rear end of the rectification tank 1. A PLC controller 18 is arranged at the left end of the front surface of the first support 10. The input end of the PLC controller 18 is electrically connected to an external power supply. A uniformly distributed tray 3 is fixedly connected inside the rectification tank 1. Through holes are arranged at one end of each tray 3 away from the center of the rectification tank 1. The through holes are vertically staggered. A first limiting plate 4 is fixedly connected to one end of each through hole close to the center of the rectification tank 1. A second limiting plate 5 is fixedly connected to the upper end of each tray 3. The second limiting plates 5 are all cooperatively installed with the adjacent first limiting plates 4 in the vertical direction. Uniformly distributed heat exchange fins 7 are fixedly connected inside the heat exchange chamber 6. The lower end of the heat exchange chamber 6 is communicated with the rectification tank 1 through a reflux pipe 9;

[0024] Cooling mechanism 2: It is arranged between the second support 11 and the rectification tank 1. The cooling mechanism 2 includes a cooling chamber 21, a cooling pipe 22, a fixing clip 23 and a water pump 24. The cooling chamber 21 is arranged at the right end of the upper surface of the second support 11. The cooling pipe 22 is wound around the outer surface of the rectification tank 1. The fixing clips 23 are uniformly fixedly connected to the outer surface of the rectification tank 1. The inside of each fixing clip 23 is clamped with the cooling pipe 22. The upper end of the cooling pipe 22 is communicated with the upper end of the cooling chamber 21. A water pump 24 is arranged at the lower end of the left inner wall of the cooling chamber 21. The lower end of the cooling pipe 22 is communicated with the water outlet of the water pump 24. The input end of the water pump 24 is electrically connected to the output end of the PLC controller 18. The PLC controller 18 controls the operation of the water pump 24. The water pump 24 pumps the cooling water inside the cooling chamber 21 into the inside of the cooling pipe 22, thereby realizing the cooling of the rectification tank 1. Then the cooling water falls back into the inside of the cooling chamber 21, realizing the circulating cooling of the rectification tank 1, and further realizing the control of the rectification ratio of the pesticide raw material;

[0025] Among them: A first discharge pipe is arranged at the lower end of the rectification tank 1. An electric valve one 12 is arranged in the middle of the first discharge pipe. An electric valve two 14 is arranged in the middle of the intake pipe 13. An electric valve four 17 is arranged in the middle of the feed pipe 16. The input ends of the electric valve one 12, the electric valve two 14 and the electric valve four 17 are all electrically connected to the output end of the PLC controller 18;

[0026] Among them: a water inlet pipe is provided at the upper end of the right surface of the cooling bin 21, and a water outlet pipe is provided at the lower end of the right surface of the cooling bin 21. Electric valves three 15 are provided in the middle of the water inlet pipe and the water outlet pipe. The input ends of the electric valves three 15 are electrically connected to the output end of the PLC controller 18. The operation of the electric valve four 17 is realized through the PLC controller 18. When the electric valve four 17 is opened, the pesticide raw material to be rectified is injected into the rectification tank 1 through the feed pipe 16. The pesticide raw material falls into the rectification tank 1 through the trays 3 layer by layer under the action of gravity. At the same time, the PLC controller 18 realizes the operation of the electric valve two 14, and hot air is injected into the rectification tank 1 through the air inlet pipe 13. The hot air contacts the falling liquid of the pesticide raw material, and the volatile raw materials in the liquid of the pesticide raw material are led out, so that the volatile pesticide raw materials tend to the upper end of the rectification tank 1, and the pesticide raw materials that are difficult to volatilize fall to the lower end of the rectification tank 1, thus realizing the rectification treatment of the Xi'an pesticide raw materials. At the same time, the volatile pesticide raw materials enter the inside of the heat exchange bin 6 through the connecting pipe 8, and the condensation effect of the volatile pesticide raw materials is realized under the action of the heat exchange fins 7. Then, the volatile pesticide raw material products are removed through the second discharge pipe. The non-volatile pesticide raw materials and the condensed water vapor fall back into the rectification tank 1 through the return pipe 9, effectively improving the rectification effect of the pesticide raw materials.

[0027] The working principle of a rectification column with a cooling structure provided by the present utility model is as follows: During operation, personnel first stably place the rectification tank 1, the heat exchange chamber 6 and other mechanisms on a horizontal working area through the first bracket 10 and the second bracket 11. After stable placement, personnel operate the fourth electric valve 17 through the PLC controller 18. When the fourth electric valve 17 is opened, personnel inject the pesticide raw materials to be rectified into the interior of the rectification tank 1 through the feed pipe 16. The pesticide raw materials fall into the interior of the rectification tank 1 layer by layer through the trays 3 under the action of gravity. At the same time, the PLC controller 18 operates the second electric valve 14, and hot gas is injected into the interior of the rectification tank 1 through the intake pipe 13. The hot gas contacts the falling liquid of the pesticide raw materials, and the volatile raw materials in the liquid of the pesticide raw materials are led out, making the volatile pesticide raw materials tend to the upper end of the rectification tank 1, and the pesticide raw materials that are difficult to volatilize fall to the lower end of the rectification tank 1, thereby realizing the rectification treatment of the Xi'an pesticide raw materials. At the same time, the volatile pesticide raw materials enter the interior of the heat exchange chamber 6 through the connecting pipe 8, and the condensation effect of the volatile pesticide raw materials is realized under the action of the heat exchange fins 7. Then, the volatile pesticide raw material products are removed through the second discharge pipe. The non-volatile pesticide raw materials and the condensed water vapor fall back into the interior of the rectification tank 1 through the return pipe 9, effectively improving the rectification effect of the pesticide raw materials. During the rectification process of the pesticide raw materials, according to the required rectification ratio of the pesticide raw materials, personnel operate the water pump 24 through the PLC controller 18. The water pump 24 pumps the cooling water in the cooling chamber 21 into the interior of the cooling pipe 22, thereby realizing the cooling work of the rectification tank 1. Then, the cooling water falls back into the interior of the cooling chamber 21, realizing the circulating cooling of the rectification tank 1, and further realizing the control of the rectification ratio of the pesticide raw materials.

[0028] It should be noted that, in the above embodiments, the first electric valve 12 disclosed can be selected as the HK60-D-F electric flange butterfly valve, the second electric valve 14, the third electric valve 15 and the fourth electric valve 17 can all be selected as the JG90-D3-DQ-MF7 electric butterfly valve, and the PLC controller 18 can be selected as the 6ES7211-0AA23-0XB0 programmable controller. The PLC controller 18 controls the operation of the first electric valve 12, the second electric valve 14, the third electric valve 15 and the fourth electric valve 17 by using the commonly used methods in the prior art.

[0029] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A rectifying column with a cooling structure, characterized in that: It includes a rectification tank (1) and a cooling mechanism (2); Rectification tank (1): It is fixedly connected to a second support (11) at the lower end. A first support (10) is arranged on the right side of the second support (11). A heat exchange chamber (6) is arranged at the upper end of the first support (10). A second discharge pipe is arranged at the left end of the heat exchange chamber (6). The heat exchange chamber (6) is communicated with the rectification tank (1) through a connecting pipe (8). An intake pipe (13) is arranged at the front end of the rectification tank (1). A feed pipe (16) is arranged at the rear end of the rectification tank (1); Cooling mechanism (2): It is arranged between the second support (11) and the rectification tank (1).

2. The rectifying column with a cooling structure according to claim 1, characterized in that: A PLC controller (18) is arranged at the left end of the front surface of the first support (10). The input end of the PLC controller (18) is electrically connected to an external power supply.

3. The rectifying column with a cooling structure according to claim 2, wherein: The cooling mechanism (2) includes a cooling chamber (21), a cooling pipe (22), a fixing clip (23) and a water pump (24). The cooling chamber (21) is arranged at the right end of the upper surface of the second support (11). The cooling pipe (22) is wound around the outer surface of the rectification tank (1). The fixing clips (23) are uniformly fixedly connected to the outer surface of the rectification tank (1). The inside of the fixing clips (23) is clamped with the cooling pipe (22). The upper end of the cooling pipe (22) is communicated with the upper end of the cooling chamber (21). A water pump (24) is arranged at the lower end of the left inner wall of the cooling chamber (21). The lower end of the cooling pipe (22) is communicated with the water outlet of the water pump (24). The input end of the water pump (24) is electrically connected to the output end of the PLC controller (18).

4. A rectifying column with a cooling structure according to claim 1, characterized in that: A uniformly distributed tray (3) is fixedly connected inside the rectification tank (1). Through holes are arranged at one end of the tray (3) away from the center of the rectification tank (1). The through holes are vertically staggered. A first limiting plate (4) is fixedly connected to one end of the through hole close to the center of the rectification tank (1). A second limiting plate (5) is fixedly connected to the upper end of the tray (3). The second limiting plates (5) are cooperatively installed with the first limiting plates (4) adjacent vertically.

5. The rectifying column with a cooling structure according to claim 2, characterized in that: A first discharge pipe is arranged at the lower end of the rectification tank (1). An electric valve one (12) is arranged in the middle of the first discharge pipe. An electric valve two (14) is arranged in the middle of the intake pipe (13). An electric valve four (17) is arranged in the middle of the feed pipe (16). The input ends of the electric valve one (12), the electric valve two (14) and the electric valve four (17) are all electrically connected to the output end of the PLC controller (18).

6. The rectifying column with a cooling structure according to claim 3, characterized in that: An inlet pipe is arranged at the upper end of the right surface of the cooling chamber (21). An outlet pipe is arranged at the lower end of the right surface of the cooling chamber (21). Electric valves three (15) are arranged in the middle of the inlet pipe and the outlet pipe. The input ends of the electric valves three (15) are all electrically connected to the output end of the PLC controller (18).

7. A rectifying column with a cooling structure according to claim 1, characterized in that: Uniformly distributed heat exchange fins (7) are fixedly connected inside the heat exchange chamber (6). The lower end of the heat exchange chamber (6) is communicated with the rectification tank (1) through a reflux pipe (9).

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