Stirring structure for crystallization and cooling of nitrogen-potassium compound fertilizer

Abstract

The utility model relates to the technical field of stirring structures, in particular to a stirring structure for crystallization and cooling of a nitrogen-potassium compound fertilizer, which comprises a stirring box, a protective box is fixedly mounted on the top side of the stirring box, a motor is fixedly mounted on one side of the protective box, and the output end of the motor is fixedly connected with a first bevel gear. And the outer surface of the first bevel gear is engaged with a second bevel gear. The stirring device has the advantages that through the matched arrangement of the motor, the first bevel gear, the second bevel gear, the hollow rotating shaft, the cooling stirring rod, the backflow disc, the backflow pipe, the first water delivery pump, the cooling liquid box, the second water delivery pump, the water inlet pipe, the sealing shell, the sealing ring and the feeding pipe, the number of parts installed in the stirring box is reduced; according to the nitrogen-potassium compound fertilizer raw material cooling device, more nitrogen-potassium compound fertilizer raw materials can be stirred, less time is needed when a large number of nitrogen-potassium compound fertilizer raw materials are cooled, and the efficiency of cooling the nitrogen-potassium compound fertilizer raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring structures, in particular to a stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer. Background Art

[0002] Fertilizers containing any two or three of the crop nutrient elements nitrogen, phosphorus and potassium made by chemical methods or mixed methods have high nutrient content and can supply the nutrients needed by crops in a relatively balanced and long-term manner, thereby improving the effect of fertilization on increasing yields. In recent years, with the continuous development of my country's agricultural economy, the application of nitrogen-potassium compound fertilizers in agriculture has continued to increase, the nitrogen-potassium compound fertilizer market has continued to expand, and the nitrogen-potassium compound fertilizer industry has been improved and developed; nitrogen-potassium compound fertilizers need to be cooled and then stirred during production.

[0003] A stirring structure for cooling the crystals of nitrogen-potassium compound fertilizer is disclosed in a patent document with publication number CN216320067U. The stirring structure for cooling the crystals of nitrogen-potassium compound fertilizer is novel in design and can fully contact with the raw materials, increase the contact area, and improve the cooling efficiency. At the same time, stirring is performed during the cooling process, and the mixing is sufficient to improve the production efficiency. However, the stirring structure for cooling the crystals of nitrogen-potassium compound fertilizer is provided with a large number of cooling pipes, an upper cooling chamber, and a lower cooling chamber inside its outer shell. The large number of cooling pipes, the upper cooling chamber, and the lower cooling chamber occupy a large volume inside the outer shell, so that less nitrogen-potassium compound fertilizer raw materials can be placed inside the outer shell. When a large amount of nitrogen-potassium compound fertilizer raw materials need to be cooled, a long time is required, thereby reducing the efficiency of cooling the nitrogen-potassium compound fertilizer raw materials. Therefore, a stirring structure for cooling the crystals of nitrogen-potassium compound fertilizer is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to provide a stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer, including a stirring box, a protective box is fixedly installed on the top side of the stirring box, a motor is fixedly installed on one side of the protective box, a first bevel gear is fixedly connected to the output end of the motor, a second bevel gear is meshed on the outer surface of the first bevel gear, a hollow rotating shaft is fixedly connected to the inner wall of the second bevel gear, a plurality of cooling stirring rods with hollow structures inside are fixedly connected to the outer surface of the hollow rotating shaft, and the bottom ends of the cooling stirring rods are rotatably connected through bearings. A reflux pan is connected, one side of the reflux pan is fixedly connected to a reflux pipe via a pipeline, a first water pump is fixedly installed on one end of the reflux pipe away from the reflux pan, the first water pump is fixedly connected to a coolant tank via a pipeline, a coolant cooling structure is provided on the coolant tank, a second water pump is fixedly connected to one side of the coolant tank via a pipeline, a water inlet pipe is fixedly connected to the water outlet of the second water pump, a sealing shell with a hollow structure inside is fixedly connected to the top side of the protection box, a sealing ring is provided inside the sealing shell, and a feed pipe is provided on the mixing box.

[0007] Preferably, any of the above schemes comprises a third bevel gear, a rotating shaft, a stirring rod, a semiconductor refrigerator, a heat conduction plate and a heat sink, the outer surface of the second bevel gear is meshed with the third bevel gear, the inner wall of the third bevel gear is fixedly connected to the rotating shaft, the outer surface of the rotating shaft is fixedly connected to a plurality of stirring rods, a semiconductor refrigerator is fixedly installed on one side of the coolant tank, a heat conduction plate is fixedly installed on the cold end of the semiconductor refrigerator, and a plurality of heat sinks are fixedly installed on the hot end of the semiconductor refrigerator.

[0008] Preferably, any of the above schemes has a support plate fixedly connected to the outer surface of the mixing box, the coolant tank is fixedly mounted on the top side of the mixing box, and one end of the support plate away from the mixing box is fixedly mounted on the bottom side of the coolant tank.

[0009] Preferably, any of the above schemes has a support rod fixedly connected to the inner wall of the mixing box, one end of the support rod is fixedly connected to the outer surface of the reflux plate, the reflux pipe passes through one side of the mixing box and extends to the outside of the mixing box, and the reflux pipe is fixedly connected to the mixing box.

[0010] Preferably, any of the above schemes has a top end of the hollow shaft located inside the sealing shell, an end of the water inlet pipe away from the second water pump is located inside the sealing shell, and the sealing ring is sleeved on the outer surfaces of the hollow shaft and the water inlet pipe.

[0011] Preferably, any of the above schemes is that the hollow rotating shaft passes through the protection box, the hollow rotating shaft is rotatably connected to the protection box, and the hollow rotating shaft passes through the top side of the mixing box, and the hollow rotating shaft is rotatably connected to the mixing box.

[0012] Preferably, any of the above schemes is that the first bevel gear, the second bevel gear and the third bevel gear are all located inside the protection box, and the maximum diameters of the first bevel gear, the second bevel gear and the third bevel gear are all smaller than the width of the internal dimension of the protection box.

[0013] Preferably, any of the above schemes is that the rotating shaft passes through one side of the protection box and the coolant tank and extends to the interior of the coolant tank, the rotating shaft is rotatably connected to the protection box, the rotating shaft is rotatably connected to the coolant tank, and the heat conducting plate is located inside the coolant tank.

[0014] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0015] 1. The motor, the first bevel gear, the second bevel gear, the hollow rotating shaft, the cooling stirring rod, the reflux plate, the reflux pipe, the first water pump, the coolant tank, the second water pump, the water inlet pipe, the sealing shell, the sealing ring and the feed pipe are arranged in coordination, so that the number of parts installed inside the stirring box is reduced, and a large number of nitrogen-potassium compound fertilizer raw materials can be stirred. When a large amount of nitrogen-potassium compound fertilizer raw materials are cooled, the efficiency of cooling the nitrogen-potassium compound fertilizer raw materials is improved, so that the stirring structure can stir the nitrogen-potassium compound fertilizer raw materials while performing a relatively uniform cooling and cooling operation on the nitrogen-potassium compound fertilizer raw materials, and the cooling and cooling effect of the nitrogen-potassium compound fertilizer raw materials is relatively good.

[0016] 2. Through the coordinated arrangement of the motor, the first bevel gear, the second bevel gear, the third bevel gear, the rotating shaft, the stirring rod, the semiconductor refrigerator, the heat conducting plate and the heat sink, the coolant inside the coolant tank can be cooled down, and the inside of the coolant tank can be stirred while the nitrogen-potassium compound fertilizer raw material is stirred. The coolant inside the coolant tank can be cooled down quickly, thereby ensuring that the subsequent cooling effect of the nitrogen-potassium compound fertilizer raw material inside the stirring box is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the hollow shaft and its connecting components of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the coolant tank of the utility model;

[0022] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure: 1-mixing box, 2-protection box, 3-motor, 4-first bevel gear, 5-second bevel gear, 6-hollow shaft, 7-cooling stirring rod, 8-reflux plate, 9-reflux pipe, 10-first water pump, 11-coolant tank, 12-cooling liquid cooling structure, 1201-third bevel gear, 1202-shaft, 1203-stirring rod, 1204-semiconductor refrigerator, 1205-heat conduction plate, 1206-heat sink, 13-second water pump, 14-water inlet pipe, 15-sealing shell, 16-sealing ring, 17-feeding pipe, 18-support plate, 19-support rod. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0025] like Figures 1 to 6As shown, a stirring structure for cooling crystallization of nitrogen-potassium compound fertilizer comprises a stirring box 1, a protection box 2 is fixedly installed on the top side of the stirring box 1, a motor 3 is fixedly installed on one side of the protection box 2, a first bevel gear 4 is fixedly connected to the output end of the motor 3, a second bevel gear 5 is meshed on the outer surface of the first bevel gear 4, a hollow rotating shaft 6 is fixedly connected to the inner wall of the second bevel gear 5, a plurality of cooling stirring rods 7 with hollow structures inside are fixedly connected to the outer surface of the hollow rotating shaft 6, a reflux plate 8 is rotatably connected to the bottom end of the cooling stirring rod 7 through a bearing, and one side of the reflux plate 8 is fixedly connected to the A return pipe 9 is connected, and a first water pump 10 is fixedly installed at one end of the return pipe 9 away from the return plate 8. The first water pump 10 is fixedly connected to a coolant tank 11 through a pipeline. The coolant tank 11 is provided with coolant inside. A water supply pipe is provided on the coolant tank 11, and a sealing plug is provided on the water supply pipe. A coolant cooling structure 12 is provided on the coolant tank 11. A second water pump 13 is fixedly connected to one side of the coolant tank 11 through a pipeline. A water inlet pipe 14 is fixedly connected to the water outlet of the second water pump 13. The top side of the protective box 2 is fixedly connected to a hollow structure inside. The sealing shell 15 is provided with a sealing ring 16 inside the sealing shell 15, and a feeding pipe 17 is provided on the mixing box 1. When the nitrogen-potassium compound fertilizer raw material needs to be cooled and crystallized, the nitrogen-potassium compound fertilizer raw material is added to the inside of the mixing box 1 from the feeding pipe 17, and then the first water delivery pump 10, the second water delivery pump 13 and the motor 3 are started. With the start of the second water delivery pump 13, the coolant inside the coolant tank 11 will enter the inside of the water inlet pipe 14, and the coolant will be transported to the inside of the hollow shaft 6 through the water inlet pipe 14. The coolant entering the inside of the hollow shaft 6 will enter To the inside of the cooling stirring rod 7, and with the start of the motor 3, the hollow shaft 6 drives the cooling stirring rod 7 to rotate under the transmission action of the first bevel gear 4 and the second bevel gear 5, and with the rotation of the cooling stirring rod 7, the nitrogen-potassium compound fertilizer raw materials in the mixing box 1 are cooled and cooled, and the coolant located in the hollow shaft 6 and the cooling stirring rod 7 can enter the inside of the reflux plate 8, and with the start of the first water delivery pump 10, the coolant located in the reflux plate 8 refluxes to the inside of the cooling liquid tank 11 through the reflux pipe 9 and the pipeline, so that the coolant performs a circulation cooling operation.

[0026] As an optional technical solution of the utility model, the cooling liquid cooling structure 12 includes a third bevel gear 1201, a rotating shaft 1202, a stirring rod 1203, a semiconductor refrigerator 1204, a heat conducting plate 1205 and a heat sink 1206. The outer surface of the second bevel gear 5 is meshed with the third bevel gear 1201, the inner wall of the third bevel gear 1201 is fixedly connected to the rotating shaft 1202, and the outer surface of the rotating shaft 1202 is fixedly connected to a plurality of stirring rods 1203. A semiconductor refrigerator 1204 is fixedly installed on one side of the cooling liquid tank 11, and a heat conducting plate 1205 is fixedly installed on the cold end of the semiconductor refrigerator 1204. The heat of the semiconductor refrigerator 1204 A plurality of heat sinks 1206 are fixedly installed at the end, and the cooling effect of the semiconductor refrigerator 1204 is improved by the heat sinks 1206. When the nitrogen-potassium compound fertilizer located inside the mixing box 1 is cooled, the semiconductor refrigerator 1204 is started. At this time, the temperature of the coolant inside the coolant tank 11 can be reduced through the heat conduction plate 1202. As the second bevel gear 5 rotates, the rotating shaft 1202 drives the stirring rod 1203 to rotate under the meshing action of the second bevel gear 1201, thereby stirring the coolant inside the coolant tank 11, so that the cooling effect of the coolant inside the coolant tank 11 is improved.

[0027] As an optional technical solution of the present invention, a support plate 18 is fixedly connected to the outer surface of the mixing box 1, and the coolant tank 11 is fixedly installed on the top side of the mixing box 1. The end of the support plate 18 away from the mixing box 1 is fixedly installed on the bottom side of the coolant tank 11, supporting the coolant tank 11 and ensuring the stability of the coolant tank 11.

[0028] As an optional technical solution of the present utility model, a support rod 19 is fixedly connected to the inner wall of the mixing box 1, one end of the support rod 19 is fixedly connected to the outer surface of the reflux tray 8, the reflux pipe 9 passes through one side of the mixing box 1 and extends to the outside of the mixing box 1, the reflux pipe 9 is fixedly connected to the mixing box 1, and the reflux tray 8 is supported by the reflux pipe 9 and the support rod 19, thereby ensuring the stability of the reflux tray 8.

[0029] As an optional technical solution of the present invention, the top end of the hollow shaft 6 is located inside the sealing shell 15, the end of the water inlet pipe 14 away from the second water pump 13 is located inside the sealing shell 15, and the sealing ring 16 is sleeved on the outer surfaces of the hollow shaft 6 and the water inlet pipe 14. The sealing ring 16 makes the sealing between the hollow shaft 6 and the water inlet pipe 14 better, so that the coolant can better enter the inside of the water inlet pipe 14 through the hollow shaft 6.

[0030] As an optional technical solution of the utility model, the hollow rotating shaft 6 passes through the protective box 2, the hollow rotating shaft 6 is rotatably connected to the protective box 2, the hollow rotating shaft 6 passes through the top side of the mixing box 1, the hollow rotating shaft 6 is rotatably connected to the mixing box 1, and supports the hollow rotating shaft 6 to ensure the stability of the hollow rotating shaft 6 during rotation.

[0031] As an optional technical solution of the utility model, the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201 are all located inside the protective box 2, and the maximum diameters of the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201 are all smaller than the width of the internal dimension of the protective box 2, so that the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201 can rotate smoothly, and the protective box 2 is used to protect the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201, which greatly avoids the influence of external factors on the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201, and ensures the service life of the first bevel gear 4, the second bevel gear 5 and the third bevel gear 1201.

[0032] As an optional technical solution of the utility model, the rotating shaft 1202 passes through the side of the protection box 2 and the coolant tank 11 and extends to the inside of the coolant tank 11. The rotating shaft 1202 is rotatably connected to the protection box 2, and the rotating shaft 1202 is rotatably connected to the coolant tank 11. The heat conducting plate 1205 is located inside the coolant tank 11. The heat conducting plate 1205 can conduct the cold generated by the semiconductor refrigerator 1204 to the inside of the coolant tank 11 and cool the coolant inside the coolant tank 11.

[0033] A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer, the working principle is as follows:

[0034] The nitrogen-potassium compound fertilizer raw material is added to the interior of the mixing box 1 from the feed pipe 17, and then the first water delivery pump 10, the second water delivery pump 13 and the motor 3 are started. With the start of the second water delivery pump 13, the coolant in the coolant tank 11 will enter the interior of the water inlet pipe 14, and the coolant will be transported to the interior of the hollow shaft 6 through the water inlet pipe 14. The coolant entering the hollow shaft 6 will enter the interior of the cooling stirring rod 7. With the start of the motor 3, the hollow shaft 6 drives the cooling stirring rod 7 to rotate under the transmission action of the first bevel gear 4 and the second bevel gear 5. With the rotation of the cooling stirring rod 7, the nitrogen-potassium compound fertilizer raw material in the mixing box 1 is cooled and cooled, and the coolant in the hollow shaft 6 and the cooling stirring rod 7 can enter the reflux plate 8. , and with the start of the first water pump 10, the coolant inside the reflux disk 8 flows back to the inside of the coolant tank 11 through the reflux pipe 9 and the pipeline, so that the coolant is circulated and cooled, and in this process, the semiconductor refrigerator 1204 is started. At this time, the temperature of the coolant inside the coolant tank 11 can be reduced through the heat conduction plate 1202. With the rotation of the second bevel gear 5, the rotating shaft 1202 drives the stirring rod 1203 to rotate under the meshing action of the second bevel gear 1201, so that the coolant inside the coolant tank 11 is stirred. The cooled coolant is re-delivered to the inside of the hollow rotating shaft 6 through the second water pump 13 and the water inlet pipe 14, so that the coolant circulates and cools and cools the nitrogen-potassium compound fertilizer raw materials.

[0035] In summary, the stirring structure for cooling the crystallization of the nitrogen-potassium compound fertilizer reduces the number of parts installed inside the stirring box 1 through the coordinated arrangement of the motor 3, the first bevel gear 4, the second bevel gear 5, the hollow shaft 6, the cooling stirring rod 7, the reflux plate 8, the reflux pipe 9, the first water pump 10, the coolant tank 11, the second water pump 13, the water inlet pipe 14, the sealing shell 15, the sealing ring 16 and the feed pipe 17, and can stir more nitrogen-potassium compound fertilizer raw materials. When a large amount of nitrogen-potassium compound fertilizer raw materials are cooled, the time required is short, and the efficiency of cooling the nitrogen-potassium compound fertilizer raw materials is improved, so that the stirring structure can stir the nitrogen-potassium compound fertilizer raw materials while cooling the nitrogen-potassium compound fertilizer raw materials. A relatively uniform cooling and cooling operation is performed, and the cooling and cooling effect of the nitrogen-potassium compound fertilizer raw material is relatively good. Through the coordinated arrangement of the motor 3, the first bevel gear 4, the second bevel gear 5, the third bevel gear 1201, the rotating shaft 1202, the stirring rod 1203, the semiconductor refrigerator 1204, the heat conduction plate 1205 and the heat sink 1206, the coolant inside the coolant tank 11 can be cooled, and the coolant inside the coolant tank 11 can be stirred while the nitrogen-potassium compound fertilizer raw material is stirred. The coolant inside the coolant tank 11 can be cooled quickly, thereby ensuring that the subsequent cooling effect of the nitrogen-potassium compound fertilizer raw material inside the stirring box 1 is relatively good.

Claims

1. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer, characterized in that: The invention comprises a stirring box (1), a protective box (2) is fixedly mounted on the top side of the stirring box (1), a motor (3) is fixedly mounted on one side of the protective box (2), a first bevel gear (4) is fixedly connected to the output end of the motor (3), a second bevel gear (5) is meshed on the outer surface of the first bevel gear (4), a hollow rotating shaft (6) is fixedly connected to the inner wall of the second bevel gear (5), a plurality of cooling stirring rods (7) with hollow structures inside are fixedly connected to the outer surface of the hollow rotating shaft (6), a reflux plate (8) is rotatably connected to the bottom end of the cooling stirring rod (7) via a bearing, and a reflux pipe (9) is fixedly connected to one side of the reflux plate (8) via a pipeline. A first water pump (10) is fixedly installed at one end of the reflux pipe (9) away from the reflux plate (8); the first water pump (10) is fixedly connected to a coolant tank (11) via a pipeline; a coolant cooling structure (12) is provided on the coolant tank (11); a second water pump (13) is fixedly connected to one side of the coolant tank (11) via a pipeline; a water inlet pipe (14) is fixedly connected to the water outlet of the second water pump (13); a sealing shell (15) with a hollow structure inside is fixedly connected to the top side of the protection box (2); a sealing ring (16) is provided inside the sealing shell (15); and a feed pipe (17) is provided on the mixing box (1).

2. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 1, characterized in that: The cooling liquid cooling structure (12) comprises a third bevel gear (1201), a rotating shaft (1202), a stirring rod (1203), a semiconductor refrigerator (1204), a heat conduction plate (1205) and a heat sink (1206); the outer surface of the second bevel gear (5) is meshed with the third bevel gear (1201); the inner wall of the third bevel gear (1201) is fixedly connected to the rotating shaft (1202); the outer surface of the rotating shaft (1202) is fixedly connected to a plurality of stirring rods (1203); a semiconductor refrigerator (1204) is fixedly mounted on one side of the cooling liquid tank (11); a heat conduction plate (1205) is fixedly mounted on the cold end of the semiconductor refrigerator (1204); and a plurality of heat sinks (1206) are fixedly mounted on the hot end of the semiconductor refrigerator (1204).

3. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 2, characterized in that: The outer surface of the mixing box (1) is fixedly connected to a support plate (18), the coolant tank (11) is fixedly mounted on the top side of the mixing box (1), and one end of the support plate (18) away from the mixing box (1) is fixedly mounted on the bottom side of the coolant tank (11).

4. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 3, characterized in that: A support rod (19) is fixedly connected to the inner wall of the mixing box (1), one end of the support rod (19) is fixedly connected to the outer surface of the reflux plate (8), the reflux pipe (9) passes through one side of the mixing box (1) and extends to the outside of the mixing box (1), and the reflux pipe (9) is fixedly connected to the mixing box (1).

5. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 4, characterized in that: The top end of the hollow rotating shaft (6) is located inside the sealing shell (15), the end of the water inlet pipe (14) away from the second water delivery pump (13) is located inside the sealing shell (15), and the sealing ring (16) is sleeved on the outer surfaces of the hollow rotating shaft (6) and the water inlet pipe (14).

6. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 5, characterized in that: The hollow rotating shaft (6) passes through the protection box (2), and the hollow rotating shaft (6) is rotatably connected to the protection box (2); the hollow rotating shaft (6) passes through the top side of the mixing box (1), and the hollow rotating shaft (6) is rotatably connected to the mixing box (1).

7. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 6, characterized in that: The first bevel gear (4), the second bevel gear (5) and the third bevel gear (1201) are all located inside the protection box (2); the maximum diameters of the first bevel gear (4), the second bevel gear (5) and the third bevel gear (1201) are all smaller than the width of the internal dimensions of the protection box (2).

8. A stirring structure for cooling the crystallization of nitrogen-potassium compound fertilizer according to claim 7, characterized in that: The rotating shaft (1202) passes through one side of the protection box (2) and the coolant tank (11) and extends to the interior of the coolant tank (11); the rotating shaft (1202) is rotatably connected to the protection box (2); the rotating shaft (1202) is rotatably connected to the coolant tank (11); and the heat conducting plate (1205) is located inside the coolant tank (11).

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