Cooling equipment for alcohol preparation and cooling recovery process thereof

Abstract

The invention discloses cooling equipment for alcohol preparation and a cooling and recycling process thereof, and relates to the field of alcohol preparation cooling, the cooling equipment comprises a conical table, a positioning cylinder vertically mounted in the conical table, a cooling mechanism and a recycling mechanism, the cooling mechanism and the recycling mechanism are inserted in the positioning cylinder, and the recycling mechanism and the cooling mechanism are distributed in the positioning cylinder in a staggered mode; the cooling mechanism comprises a first pump body, a second pump body and a heat exchange pipe used for exchanging heat. The cooling mechanism and the recovery mechanism adopt a staggered layout design, during use, the cooling mechanism carries out continuous cooling treatment so as to improve the preparation efficiency of alcohols, and in the cooling process, the recovery mechanism carries out auxiliary heat dissipation on the cooling mechanism so as to ensure that the temperature of the cooling mechanism is always maintained in a stable range; the cooling performance is prevented from being influenced by too high temperature, and the double-guarantee mechanism effectively prevents the problem of efficiency reduction possibly caused by long-time working of the cooling mechanism in a high-temperature environment.

Description

Technical Field

[0001] The invention relates to the technical field of alcohol preparation cooling, in particular to cooling equipment for alcohol preparation and a cooling recovery process thereof. Background Art

[0002] Many alcohol preparation reactions are exothermic reactions, such as the hydration of olefins to prepare alcohols, the hydrogenation reduction of aldehydes or ketones to prepare alcohols, etc. A large amount of heat will be released during the reaction. If not cooled in time, the temperature of the reaction system will rise rapidly. Excessive temperature may make the reaction rate too fast and difficult to control, and may even cause a runaway reaction, leading to a safety accident. Therefore, cooling equipment is required to cool it down in actual use.

[0003] For example, "A cooler for separating light components of alcohols" with publication number CN217953170U includes a cooling pipe and a condensate storage box. The condensate storage box has a low-temperature box and a normal temperature box. The first port of the cooling pipe is connected to the low-temperature box, and the second port of the cooling pipe is connected to the low-temperature box and the normal temperature box through a reversing valve. The cooling pipe is U-shaped, and a vent pipe is also connected to the middle part of the cooling pipe, and a valve is provided at the connection between the vent pipe and the cooling pipe. A feed pipe is provided on the cooling pipe, and a feed channel is formed between the feed pipe and the cooling pipe. A feed port is provided near the first port of the feed pipe, and a discharge port is provided near the second port of the feed pipe. The feed port and the discharge port are respectively connected to the feed channel.

[0004] However, in the prior art, when preparing alcohols, the main method is to prepare alcohol substances by distillation through a distillation tower, and the function of the cooling equipment is to cool the steam at the top of the tower to condense it into liquid so as to collect the product. During the cooling process, the liquid condensed from the steam will gather on the surface of the equipment. At this time, since the condensed liquids are still continuously heated by the high-temperature steam in the distillation tower, the heat transferred to the cooling equipment will directly cause the temperature of the cooling equipment itself to increase, thereby affecting the subsequent cooling treatment of the high-temperature steam and affecting the efficiency of alcohol preparation. Summary of the invention

[0005] The object of the present invention is to provide a cooling device for alcohol preparation and a cooling recovery process thereof, so as to solve the problem proposed in the above-mentioned background technology that during the cooling process, the liquid condensed from the steam will accumulate on the surface of the equipment. At this time, since these condensed liquids are still continuously heated by the high-temperature steam in the distillation tower, the heat transferred to the cooling device will directly cause the temperature of the cold zone equipment itself to increase, thereby affecting the subsequent cooling treatment of the high-temperature steam and affecting the efficiency of alcohol preparation.

[0006] To achieve the above object, the present invention provides the following technical solution: A cooling device for preparing alcohols, comprising a conical table, a positioning cylinder vertically installed inside the conical table, and a cooling mechanism and a recovery mechanism plugged into the positioning cylinder, wherein the recovery mechanism and the cooling mechanism are staggeredly distributed inside the positioning cylinder;

[0007] The cooling mechanism includes a first pump body, a second pump body and a heat exchange tube for exchanging heat. The input end of the first pump body and the output end of the second pump body are both fixedly connected with a transfer tube. The two ends of the heat exchange tube are respectively fixedly connected with one end of the two transfer tubes. The heat exchange tube is wavy and built into the conical platform. A transfer pipeline is fixedly connected between the output end of the first pump body and the input end of the second pump body. The second pump body pumps the coolant into the heat exchange tube, and the coolant enters the first pump body after absorbing the heat on the conical platform in the heat exchange tube.

[0008] The recovery mechanism includes a positioning shell and a horizontal pipe fixedly installed at the bottom thereof, the horizontal pipe is fixedly installed on the outer wall of the transfer pipe, a vertical upward air duct is opened inside the positioning shell, a centrifugal fan is fixedly installed on the inner wall of the air duct, and interconnected air inlet holes are opened inside the horizontal pipe, the air inlet holes are connected to the air duct, and the centrifugal fan recovers heat in the transfer pipe by wind transport.

[0009] Preferably, the interior of the positioning cylinder is annular and has an air intake box, a first receiving box and a second receiving box sequentially inserted therein, the first receiving box is used to accommodate the first pump body and the second pump body, the second receiving box is used to accommodate the positioning shell, and the air intake box is used to exchange air.

[0010] Preferably, a guide rib for guiding the flow direction of the condensed liquid is fixedly mounted on the outer wall of the conical platform, one end of a plurality of guide ribs gathers at the cone tip of the conical platform, and a mounting frame is fixedly connected to the edge of the conical platform.

[0011] Preferably, a permeation plate is fixedly mounted on the inner wall of the positioning housing, the centrifugal fan is fixedly mounted on the upper surface of the permeation plate, and the top of the positioning housing is fixedly connected to a conveying pipeline;

[0012] The centrifugal fan draws air from the first containing box into the second containing box through the horizontal pipeline, and the air enters the air duct from the air inlet and finally enters the conveying pipeline to realize heat recovery.

[0013] Preferably, a filter is fixedly installed on the top of the air intake box, first through holes are provided on the tops of both sides of the air intake box and on the top of one side of the first receiving box, and the air intake box is connected to the first receiving box through the first through holes.

[0014] Preferably, a partition plate is fixedly mounted on the inner wall of the first containing box, the first pump body and the second pump body are both fixedly mounted on the upper surface of the partition plate, and the partition plate separates the first containing box into two interconnected spaces.

[0015] Preferably, a second through hole is formed at the bottom of one side of the first containing box and at the bottom of one side of the second containing box, and the first containing box is connected to the second containing box through the second through hole.

[0016] Preferably, the deployment direction of the transfer pipe is perpendicular to the deployment direction of the heat exchange tubes.

[0017] A cooling and recovery process for a cooling device for preparing alcohols, comprising the following steps:

[0018] S1. When the impeller of the centrifugal fan rotates, a low-pressure area is formed in the central area, and the external air is sucked in through the air inlet and finally discharged through the air outlet;

[0019] S2, the air inlet box, the first containing box and the second containing box are interconnected. During the operation of the centrifugal fan, air enters from the air inlet box, passes through the entire first containing box, and then enters the second containing box, taking away the heat from the first pump body and the second pump body;

[0020] S3. After the air comes out of the first containing box, it enters the air duct from the air inlet in the horizontal duct, and the centrifugal fan sends the air into the conveying duct for recycling.

[0021] Preferably, in step S3, the following contents are also included:

[0022] The horizontal pipe is fixedly installed on the surface of the transfer pipe. When the air moves in the horizontal pipe, it will simultaneously take away the heat in the transfer pipe to cool the coolant.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, the cooling mechanism and the recovery mechanism adopt a staggered layout design. When in use, the cooling mechanism performs continuous cooling treatment to improve the preparation efficiency of alcohols. The heat exchange tube used for exchanging heat is a wavy structure and is built into the conical table, which not only optimizes the heat exchange area, but also significantly improves the cooling efficiency. In the cooling process, the recovery mechanism assists in heat dissipation of the cooling mechanism to ensure that the temperature of the cooling mechanism is always maintained within a stable range to avoid affecting the cooling performance due to excessive temperature. This dual protection mechanism effectively prevents the efficiency reduction problem that may be caused by the cooling mechanism working in a high temperature environment for a long time, thereby ensuring the stability and efficiency of the alcohol preparation process.

[0025] 2. In the present invention, a first containing box and a second containing box are provided in the positioning cylinder, which are respectively used to fix the positions of the cooling mechanism and the recovery mechanism, wherein the second containing box is located between two adjacent first containing boxes to form a staggered layout, and in the process of the first pump body and the second pump body exchanging the coolant, heat dissipation can be realized synchronously, which not only ensures the normal operation of the cooling mechanism, but also improves the heat dissipation efficiency. The first containing box and the second containing box are interconnected, and when the centrifugal fan is running, air will be quickly drawn out of the two containing boxes, and the heat generated by the cooling mechanism can be efficiently taken away by accelerating the air flow. In addition, the filter is installed on the top of the air intake box. Since the air temperature of the uppermost layer is the lowest, the cold air can fully absorb the heat of the cooling mechanism after being inhaled, thereby maximizing the cooling efficiency of the cooling mechanism. This design not only optimizes the heat dissipation effect, but also further improves the overall operation efficiency of the system.

[0026] 3. In the present invention, the internal space of the first containing box is divided into two independent parts by a partition plate. The partition plate is not only used to support the first pump body and the second pump body, but also effectively isolates them from the transfer pipeline. This design can avoid the occurrence of air backflow during the operation of the recovery mechanism. At the same time, the vertical structural layout determines the air flow path, so that the air can fully contact and take away the heat generated by the first pump body and the second pump body, thereby significantly improving the heat recovery efficiency. This design not only ensures the stability of the system, but also further enhances the heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a cooling device for preparing alcohols according to the present invention;

[0028] Figure 2 This is a schematic diagram of the planar structure of one side of a cooling device for preparing alcohols according to the present invention;

[0029] Figure 3 This is a schematic diagram of the other side planar structure of a cooling device for preparing alcohols according to the present invention;

[0030] Figure 4 It is a schematic diagram of the disassembled structure of a conical table, a first containing box, an air intake box and a second containing box of a cooling device for preparing alcohols according to the present invention;

[0031] Figure 5 This is a schematic diagram of the disassembly of the first containing box, the air intake box and the second containing box of a cooling device for preparing alcohols according to the present invention;

[0032] Figure 6 This is a schematic diagram of the connection and structure of the cooling mechanism and recovery mechanism of a cooling device for alcohol preparation of the present invention;

[0033] Figure 7 For the present invention Figure 6 A schematic diagram of the structure of part A in the middle;

[0034] Figure 8 This is a schematic diagram of the internal structure of a first containing box and an air intake box of a cooling device for preparing alcohols according to the present invention;

[0035] Fig. 9 This is a schematic diagram of the internal structure of a positioning shell of a cooling device for preparing alcohols according to the present invention;

[0036] Fig.10 The cooling process and heat recovery process of a cooling device for preparing alcohols according to the present invention and a summary schematic diagram;

[0037] Fig.11 The present invention is a schematic diagram of the flow path of the coolant in the heat exchange tube of a cooling device for preparing alcohols.

[0038] In the figure: 1. conical table; 2. guide rib; 3. mounting frame; 4. cooling mechanism; 5. recovery mechanism; 6. positioning cylinder; 7. first containing box; 8. air intake box; 9. second containing box; 10. filter screen; 11. first through hole; 12. partition plate; 13. second through hole; 41. first pump body; 42. second pump body; 43. transfer tube; 44. heat exchange tube; 45. transfer pipeline; 51. positioning shell; 52. conveying pipeline; 53. horizontal pipeline; 54. air intake hole; 55. air duct; 56. permeation plate; 57. centrifugal fan. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown: A cooling device for preparing alcohols, comprising a conical table 1, a positioning cylinder 6 vertically installed inside the conical table, and a cooling mechanism 4 and a recovery mechanism 5 plugged into the positioning cylinder 6, wherein the recovery mechanism 5 and the cooling mechanism 4 are staggeredly distributed inside the positioning cylinder 6;

[0041] The cooling mechanism 4 includes a first pump body 41, a second pump body 42 and a heat exchange tube 44 for exchanging heat. The input end of the first pump body 41 and the output end of the second pump body 42 are both fixedly connected with a transfer tube 43. The two ends of the heat exchange tube 44 are respectively fixedly connected with one end of the two transfer tubes 43. The heat exchange tube 44 is wavy and built into the conical platform 1. A transfer pipe 45 is fixedly connected between the output end of the first pump body 41 and the input end of the second pump body 42. The second pump body 42 pumps the coolant into the heat exchange tube 44, and the coolant enters the first pump body 41 after absorbing the heat on the conical platform 1 in the heat exchange tube 44.

[0042] The recovery mechanism 5 includes a positioning shell 51 and a horizontal pipe 53 fixedly installed at the bottom thereof, the horizontal pipe 53 is fixedly installed on the outer wall of the transfer pipe 45, a vertical upward air duct 55 is opened inside the positioning shell 51, a centrifugal fan 57 is fixedly installed on the inner wall of the air duct 55, and interconnected air inlet holes 54 are opened inside the horizontal pipe 53, the air inlet holes 54 are connected to the air duct 55, and the centrifugal fan 57 recovers the heat in the transfer pipe 45 by wind transport, and the deployment direction of the transfer pipe 45 is perpendicular to the deployment direction of the heat exchange tube 44.

[0043] In this embodiment, the cooling device is installed at the top of the distillation tower to cool the steam at the top of the tower and condense it into liquid. The entire conical platform 1 is specifically a conical structure, which is divided into a heat dissipation area and a cooling area when in use. The heat dissipation area and the cooling area are perpendicular to each other to avoid mutual influence. When in use, the cooling mechanism 4 cools the cooling area, and the recovery mechanism 5 recovers and reuses the heat in the cooling mechanism 4 through the heat dissipation area;

[0044] The cooling mechanism 4 is mainly composed of a first pump body 41, a second pump body 42 and a heat exchange tube 44, wherein the first pump body 41 and the second pump body 42 are arranged at equal intervals at the four-division points of the positioning cylinder 6. During operation, the second pump body 42 pumps the coolant into the heat exchange tube 44 through the transfer tube 43, and the coolant in the heat exchange tube 44 continuously absorbs the heat in the conical platform 1;

[0045] like Fig.10 and Fig.11 As shown, the dotted line is the coolant flow route, and the solid line is the air flow route. After the coolant flows out of the heat exchange tube 44, it will enter the first pump body 41. The first pump body 41 will pump the coolant after absorbing the heat into another second pump body 42 through the transfer pipe 45 to realize the recycling of the coolant. In the process of the coolant flowing through the transfer pipe 45, the heat inside it will be transferred to the transfer pipe 45 and recovered by the recovery mechanism 5.

[0046] The recovery mechanism 5 mainly extracts air through the centrifugal fan 57 to take away the heat in the cooling mechanism 4. The centrifugal fan 57 is installed in the positioning housing 51. When the impeller of the centrifugal fan 57 rotates, a low-pressure area is formed in the central area, and the external air is sucked in through the air inlet and finally discharged through the air outlet. In the process of air flow, the heat in the first pump body 41, the second pump body 42 and the transfer pipe 45 is taken away, thereby realizing heat dissipation and heat recovery.

[0047] The horizontal duct 53 is fixedly mounted on the outer wall of the transfer duct 45, and the air duct 55 inside the positioning housing 51 is communicated with the air inlet 54 in the horizontal duct 53, which determines the air flow route and is used to prevent air backflow;

[0048] The heat exchange tube 44 is a wavy structure built into the conical platform 1. The wavy structure not only ensures its own structural strength, but also extends the flow distance. It also significantly improves the cooling efficiency while expanding the heat exchange area. The recovery mechanism 5 assists in heat dissipation for the cooling mechanism 4 to ensure that the temperature of the cooling mechanism 4 is always maintained within a stable range to avoid affecting the cooling performance due to excessive temperature.

[0049] Embodiment 2: According to Figure 1 , Figure 4 and Figure 5 As shown, the interior of the positioning cylinder 6 is annularly connected with an air intake box 8, a first receiving box 7 and a second receiving box 9 in sequence. The first receiving box 7 is used to accommodate the first pump body 41 and the second pump body 42, and the second receiving box 9 is used to accommodate the positioning shell 51. The air intake box 8 is used to exchange air. A guide rib 2 for guiding the flow direction of the condensed liquid is fixedly installed on the outer wall of the conical platform 1. One ends of the multiple guide ribs 2 are gathered at the cone tip of the conical platform 1, and a mounting frame 3 is fixedly connected to the edge of the conical platform 1.

[0050] In this embodiment, when installing the cooling device, the conical platform 1 is deployed to the top of the distillation tower through the mounting frame 3. During operation, the air intake box 8 is used to supply new air to the first holding box 7 and the second holding box 9 to ensure that the air can flow continuously. During the flow, the air will also take away the heat on the conical platform 1, so that the temperature of the conical platform 1 is kept in a relatively low range to cool the steam. The guide convex strips 2 arranged on the surface of the conical platform 1 can play a role in gathering the condensed liquid, so that the condensed liquid gathers at the cone tip of the conical platform 1, which is convenient for collecting the condensed liquid.

[0051] The second containing box 9 is located between two adjacent first containing boxes 7, forming a staggered layout. During the process of exchanging coolant between the first pump body 41 and the second pump body 42, heat dissipation can be achieved simultaneously, which not only ensures the normal operation of the cooling mechanism 4, but also improves the heat dissipation efficiency.

[0052] Embodiment 3: According to Figure 4 , Figure 5 and Figure 8 As shown, a permeation plate 56 is fixedly installed on the inner wall of the positioning shell 51, and a centrifugal fan 57 is fixedly installed on the upper surface of the permeation plate 56. The top of the positioning shell 51 is fixedly connected with a conveying pipe 52. The centrifugal fan 57 draws air in the first containing box 7 into the second containing box 9 through a horizontal pipe 53. The air enters the air duct 55 from the air inlet hole 54 and finally enters the conveying pipe 52 to realize heat recovery. A filter 10 is fixedly installed on the top of the air intake box 8. First through holes 11 are provided on the tops of both sides of the air intake box 8 and the top of one side of the first containing box 7. The air intake box 8 and the first containing box 7 are connected via the first through holes 11. Second through holes 13 are provided on the bottom of one side of the first containing box 7 and the bottom of one side of the second containing box 9. The first containing box 7 and the second containing box 9 are connected via the second through holes 13.

[0053] In this embodiment, the permeable plate 56 is used to support the centrifugal fan 57, and the through holes on the permeable plate 56 can ensure that the air can circulate normally. The conveying pipe 52 connected to the top of the positioning shell 51 is used to convey hot air. The hot air extracted by the centrifugal fan 57 can be conveyed to other equipment through the conveying pipe 52 for secondary utilization. The fastest way is to connect the conveying pipe 52 to the feed port of the distillation tower to preheat the raw materials.

[0054] During the operation of the centrifugal fan 57, the air in the first storage box 7 and the second storage box 9 will be continuously extracted, and new air will be continuously added to the first storage box 7 and the second storage box 9 from the filter screen 10 of the air intake box 8. The air intake box 8 is connected to the first storage box 7 through the first through hole 11, and the first storage box 7 is connected to the second storage box 9 through the second through hole 13. The filter screen 10 is located on the upper surface of the cone 1. The air around it is all cold air processed by the cooling mechanism 4, and the air temperature of the uppermost layer is the lowest. After the cold air is sucked in, it can fully absorb the cooling mechanism 4. heat, thereby maximizing the cooling efficiency of the cooling mechanism 4, and in the process of inhaling air, it can synchronously drive the surrounding airflow, so that the steam can move along the surface of the conical platform 1, and because the conical platform 1 is a structure that is wide at the top and pointed at the bottom, during the flow of steam, it will move along the inclined surface of the conical platform 1 and quickly condense on its surface, reducing the probability of moisture entering the air intake box 8. At the same time, there is a change of direction between the air intake box 8 and the first receiving box 7. The height of the first through hole 11 ensures that even if moisture enters the air intake box 8, it will not be able to enter the first receiving box 7 later.

[0055] Embodiment 4: According to Figure 5 and Figure 8As shown, a partition plate 12 is fixedly installed on the inner wall of the first receiving box 7, and the first pump body 41 and the second pump body 42 are fixedly installed on the upper surface of the partition plate 12. The partition plate 12 separates the first receiving box 7 into two connected spaces. A second through hole 13 is provided at the bottom of one side of the first receiving box 7 and at the bottom of one side of the second receiving box 9. The first receiving box 7 and the second receiving box 9 are connected to each other through the second through hole 13.

[0056] In this embodiment, the partition plate 12 is used to support the first pump body 41 and the second pump body 42. When in use, the partition plate 12 separates the internal space of the first receiving box 7 into two interconnected spaces. During the operation of the cooling mechanism 4, cold air passes through the second through hole 13 and enters the second receiving box 9, thereby avoiding the occurrence of air backflow. At the same time, the vertical structural layout ensures the optimization of the air flow path, so that the air can fully contact and take away the heat generated by the first pump body 41 and the second pump body 42, thereby significantly improving the heat recovery efficiency.

[0057] The use method and working principle of the device are as follows: the cone platform 1 is deployed to the top of the distillation tower through the mounting frame 3. The entire cone platform 1 is a cone structure, which is divided into a heat dissipation area and a cooling area when in use. The cooling mechanism 4 is mainly composed of a first pump body 41, a second pump body 42 and a heat exchange tube 44. During operation, the second pump body 42 pumps the coolant into the heat exchange tube 44 through the transfer tube 43. The coolant in the heat exchange tube 44 will continue to absorb the heat in the cone platform 1. After the coolant flows out of the heat exchange tube 44, it will enter the first pump body 41. The first pump body 41 will pump the coolant after absorbing the heat into another second pump body 42 through the transfer pipe 45, so as to realize the recycling of the coolant. In the process of the coolant flowing through the transfer pipe 45, the heat inside it will be transferred to the transfer pipe 45 and recovered by the recovery mechanism 5.

[0058] The recovery mechanism 5 mainly extracts air through the centrifugal fan 57 to take away the heat in the cooling mechanism 4. The centrifugal fan 57 is installed in the positioning shell 51. When the impeller of the centrifugal fan 57 rotates, a low-pressure area is formed in the central area, and the external air is sucked in through the air inlet and finally discharged through the air outlet. In the process of air flow, the heat in the first pump body 41, the second pump body 42 and the transfer pipe 45 is taken away, so as to achieve heat dissipation and heat recovery. New air will be continuously added to the first storage box 7 and the second storage box 9 from the filter screen 10 of the air intake box 8. The filter screen 10 is located on the upper surface of the cone platform 1. The air around it is all cold air processed by the cooling mechanism 4, and the air temperature of the uppermost layer is the lowest. After being sucked in, the cold air can fully absorb the heat of the cooling mechanism 4.

[0059] During the operation of the cooling mechanism 4, cold air passes through the second through hole 13 and enters the second containing box 9, thereby avoiding the occurrence of air backflow. The vertical structural layout ensures the optimization of the air flow path, so that the air can fully contact and take away the heat generated by the first pump body 41 and the second pump body 42.

[0060] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling device for preparing alcohols, characterized in that: It comprises a conical platform (1), a positioning cylinder (6) vertically installed inside the conical platform, and a cooling mechanism (4) and a recovery mechanism (5) plugged into the positioning cylinder (6), wherein the recovery mechanism (5) and the cooling mechanism (4) are staggeredly distributed inside the positioning cylinder (6); The cooling mechanism (4) comprises a first pump body (41), a second pump body (42) and a heat exchange tube (44) for exchanging heat. The input end of the first pump body (41) and the output end of the second pump body (42) are both fixedly connected with a transfer tube (43). The two ends of the heat exchange tube (44) are respectively fixedly connected with one end of the two transfer tubes (43). The heat exchange tube (44) is wavy and built into the conical platform (1). A transfer pipe (45) is fixedly connected between the output end of the first pump body (41) and the input end of the second pump body (42). The second pump body (42) pumps the coolant into the heat exchange tube (44), and the coolant enters the first pump body (41) after absorbing the heat on the conical platform (1) in the heat exchange tube (44). The recovery mechanism (5) comprises a positioning shell (51) and a horizontal pipe (53) fixedly mounted at the bottom thereof, the horizontal pipe (53) being fixedly mounted on the outer wall of the transfer pipe (45), a vertical upward air duct (55) being provided inside the positioning shell (51), a centrifugal fan (57) being fixedly mounted on the inner wall of the air duct (55), and air inlet holes (54) being interconnected being provided inside the horizontal pipe (53), the air inlet holes (54) being connected to the air duct (55), and the centrifugal fan (57) recovers heat in the transfer pipe (45) by means of wind transport.

2. The cooling device for preparing alcohols according to claim 1, characterized in that: The interior of the positioning cylinder (6) is annularly connected with an air intake box (8), a first receiving box (7) and a second receiving box (9) in sequence, the first receiving box (7) being used to receive a first pump body (41) and a second pump body (42), the second receiving box (9) being used to receive a positioning shell (51), and the air intake box (8) being used to exchange air.

3. A cooling device for preparing alcohols according to claim 2, characterized in that: A guide convex strip (2) for guiding the flow direction of condensed liquid is fixedly mounted on the outer wall of the conical platform (1), one end of a plurality of guide convex strips (2) gathers at the cone tip of the conical platform (1), and a mounting frame (3) is fixedly connected to the edge of the conical platform (1).

4. A cooling device for preparing alcohols according to claim 3, characterized in that: A permeation plate (56) is fixedly mounted on the inner wall of the positioning housing (51), the centrifugal fan (57) is fixedly mounted on the upper surface of the permeation plate (56), and the top of the positioning housing (51) is fixedly connected to a conveying pipeline (52); The centrifugal fan (57) draws air from the first containing box (7) through the horizontal pipe (53) and enters the second containing box (9). The air enters the air duct (55) from the air inlet (54) and finally enters the conveying pipe (52) to realize heat recovery.

5. A cooling device for preparing alcohols according to claim 4, characterized in that: A filter screen (10) is fixedly mounted on the top of the air intake box (8), first through holes (11) are provided on the tops of both sides of the air intake box (8) and on the top of one side of the first receiving box (7), and the air intake box (8) and the first receiving box (7) are connected via the first through holes (11).

6. A cooling device for preparing alcohols according to claim 5, characterized in that: A partition plate (12) is fixedly mounted on the inner wall of the first containing box (7), and the first pump body (41) and the second pump body (42) are both fixedly mounted on the upper surface of the partition plate (12). The partition plate (12) separates the first containing box (7) into two interconnected spaces.

7. A cooling device for preparing alcohols according to claim 6, characterized in that: A second through hole (13) is provided at the bottom of one side of the first containing box (7) and at the bottom of one side of the second containing box (9); the first containing box (7) and the second containing box (9) are connected via the second through hole (13).

8. A cooling device for preparing alcohols according to claim 7, characterized in that: The deployment direction of the transfer pipe (45) is perpendicular to the deployment direction of the heat exchange tube (44).

9. A cooling and recovery process for a cooling device for alcohol production, using the cooling device for alcohol production as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: When the impeller of the centrifugal fan (57) rotates, a low-pressure area is formed in the central area, and the external air is sucked in through the air inlet and finally discharged through the air outlet; S2, the air inlet box (8), the first containing box (7) and the second containing box (9) are interconnected. When the centrifugal fan (57) is in operation, air enters from the air inlet box (8), passes through the entire first containing box (7), and then enters the second containing box (9), taking away the heat from the first pump body (41) and the second pump body (42); S3. After the air comes out of the first containing box (7), it enters the air duct (55) from the air inlet hole (54) in the horizontal pipe (53), and the centrifugal fan (57) sends the air into the conveying pipe (52) for recycling.

10. The cooling and recovery process of a cooling device for preparing alcohols according to claim 9, characterized in that: In step S3, the following contents are also included: The horizontal pipe (53) is fixedly installed on the surface of the transfer pipe (45). When the air moves in the horizontal pipe (53), it will simultaneously take away the heat in the transfer pipe (45) to cool the coolant.

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