Cooling device for freeze concentration system

Abstract

The utility model discloses a cooling device for a freeze concentration system, which comprises a concentration tank, and a cooling mechanism and a dispersing mechanism are arranged on the surface of the concentration tank; the cooling mechanism comprises a mounting frame, a cold water jacket is fixed on the surface of the concentration tank, a cooling shell is fixed below the surface of the cold water jacket, the bottom of the cold water jacket is communicated with a delivery pump, the surface of the delivery pump is communicated with a return pipe, one end of the return pipe is communicated with the top of the cold water jacket, and the other end of the return pipe is communicated with the cooling shell. Two semiconductor chilling plates are fixed above the surface of the cold water jacket, fans are fixed on the surfaces of the semiconductor chilling plates, an aeration pipe is fixed at the bottom of the inner wall of the cold water jacket, the surface of the aeration pipe is communicated with a conveying pipe, the conveying pipe penetrates through the cooling shell, and a one-way valve is mounted on the surface of the conveying pipe. The freezing concentration system has the advantage that the solvent to be concentrated can be quickly refrigerated, and the problem that the existing freezing concentration system needs a period of time to start refrigeration and is poor in efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of freezing and concentration, in particular to a cooling device for a freezing and concentration system. Background Art

[0002] The freeze concentration device is a device specially used to separate the solvent in the solution under low temperature conditions. The cooling device of the freeze concentration system is a key component in the freeze concentration process. Its purpose is to provide and maintain the required low temperature environment through refrigeration to promote the crystallization and separation process of the solvent in the solution.

[0003] Existing freeze concentration equipment usually adopts a vapor compression refrigeration cycle system. The core components of the system include a compressor, a condenser, an expansion valve and an evaporator. When this type of cooling system is used for concentration, it takes some time for the inside of the refrigeration system and the solvent to be concentrated to reach a lower operating temperature. Especially in large systems or for the first time operation, the initial temperature of the system components and materials is relatively high, requiring more time and refrigeration capacity to cool, resulting in poor cooling efficiency of the device and difficulty in meeting usage requirements. Utility Model Content

[0004] The utility model aims to provide a cooling device for a freezing concentration system, which has the advantage of being able to quickly refrigerate a solvent to be concentrated, and solves the problem that the current freezing concentration system needs a period of time to start refrigeration and has poor efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A cooling device for a freezing concentration system, comprising a concentration tank, wherein a cooling mechanism and a dispersion mechanism are arranged on the surface of the concentration tank;

[0006] The cooling mechanism includes a mounting frame, a cold water jacket is fixed on the surface of the concentration tank, a cooling shell is fixed below the surface of the cold water jacket, a delivery pump is connected to the bottom of the cold water jacket, a return pipe is connected to the surface of the delivery pump, one end of the return pipe is connected to the top of the cold water jacket, two semiconductor refrigeration plates are fixed above the surface of the cold water jacket, a fan is fixed on the surface of the semiconductor refrigeration plate, an aeration pipe is fixed to the bottom of the inner wall of the cold water jacket, a delivery pipe is connected to the surface of the aeration pipe, the delivery pipe passes through the cooling shell, and a one-way valve is installed on the surface of the delivery pipe.

[0007] As a preferred cooling device for a freezing concentration system of the utility model, the dispersion mechanism includes a motor, the motor is fixed to the surface of the concentration tank, the motor output shaft passes through the interior of the concentration tank and is fixed with a stirring rod, the top of the concentration tank is connected to a feeding pipe, and the surface of the concentration tank is connected to a solenoid valve.

[0008] As a preferred cooling device for a freezing concentration system of the utility model, a connecting rod is fixed on the surface of the stirring rod, a scraper is fixed on the surface of the connecting rod, and the scraper is slidably connected to the inner wall of the concentration tank.

[0009] As a preferred cooling device for a freezing concentration system of the utility model, a door is hinged on the top of the cooling shell, and a heat-insulating coating is sprayed on the surface of the cooling shell.

[0010] As a preferred cooling device for a freezing concentration system of the utility model, the cooling shell and the bottom of the cold water jacket are both connected to a drain valve.

[0011] As a preferred cooling device for a freezing concentration system of the utility model, a closed door is arranged below the motor, the closed door is hinged to the surface of the concentration tank, and a sealing ring is fixed to the surface of the closed door.

[0012] As a preferred cooling device for a freezing concentration system of the utility model, a controller is fixed on the surface of the concentration tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides a cooling mechanism so that the solvent inside the concentration tank can obtain a better cooling effect. Ice cubes can be added inside the cooling shell, and the ice cubes inside the cooling shell can provide a cold source. The ice cubes are a low-cost and continuously stable cooling method, which is particularly suitable for places where the power supply is unstable or limited. The cooled antifreeze liquid can be added to the cold water jacket through the liquid filling port. At the same time, the cold water jacket can effectively transfer the cold energy provided by the ice cubes to the antifreeze liquid, and the antifreeze liquid can transfer the cold energy to the solvent inside the concentration tank. At the same time, the cold water jacket increases the heat exchange area and enhances the cooling efficiency. The delivery pipe can input external cold air, and the cold air convection can further take away a part of the heat. In particular, the cold air is introduced at the bottom of the cold water jacket to supplement the ice. The attenuation of the cooling effect after the ice cubes melt increases the source of cold energy for the system. The semiconductor refrigeration sheet can further enhance the cooling effect, especially at the top of the cold water jacket surface. It can effectively offset the thermal gradient from top to bottom, making the temperature inside the cold water jacket more uniform and improving the cooling efficiency. The antifreeze inside the cold water jacket is circulated through the delivery pump to form forced convection. Compared with natural convection, it can more effectively take away the cold energy of the ice cubes, improve the cooling efficiency, make the cold energy inside the cold water jacket uniform, and avoid the situation of overcooling at the lower end and insufficient cooling at the upper end. Compared with simple evaporative refrigeration, this device has more diversified cooling methods, which can be flexibly complementary under different working conditions. At the same time, the setting of ice cubes and antifreeze can quickly reach the cooling concentration requirement temperature in the early stage and improve the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the cooling mechanism in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the dispersion mechanism in the utility model.

[0019] In the figure: 1. Concentration tank; 2. Cooling mechanism; 201. Mounting frame; 202. Cold water jacket; 203. Cooling shell; 204. Delivery pump; 205. Reflux pipe; 206. Semiconductor refrigeration plate; 207. Fan; 208. Delivery pipe; 209. Aeration pipe; 210. One-way valve; 211. Drain valve; 3. Dispersion mechanism; 301. Motor; 302. Stirring rod; 303. Solenoid valve; 304. Connecting rod; 305. Scraper; 306. Closing door; 307. Feeding pipe; 4. Controller. DETAILED DESCRIPTION

[0020] See also Figure 1-4 , a cooling device for a freezing concentration system, comprising a concentration tank 1, a cooling mechanism 2 and a dispersion mechanism 3 are arranged on the surface of the concentration tank 1;

[0021] The cooling mechanism 2 enables the solvent inside the concentration tank 1 to obtain a better cooling effect, and the dispersion mechanism 3 enables the solvent to be mixed.

[0022] The cooling mechanism 2 includes a mounting frame 201, a concentration tank 1 is fixed on the top of the mounting frame 201, a cold water jacket 202 is fixed on the surface of the concentration tank 1, a cooling shell 203 is fixed below the surface of the cold water jacket 202, a delivery pump 204 is connected to the bottom of the cold water jacket 202, the delivery pump 204 is fixed to the top of the mounting frame 201, a return pipe 205 is connected to the surface of the delivery pump 204, one end of the return pipe 205 is connected to the top of the cold water jacket 202, two semiconductor refrigeration sheets 206 are fixed above the surface of the cold water jacket 202, a fan 207 is fixed on the surface of the semiconductor refrigeration sheet 206, an aeration pipe 209 is fixed to the bottom of the inner wall of the cold water jacket 202, a delivery pipe 208 is connected to the surface of the aeration pipe 209, the delivery pipe 208 passes through the cooling shell 203, a one-way valve 210 is installed on the surface of the delivery pipe 208, and a liquid filling port is connected to the top of the cold water jacket 202;

[0023] Ice cubes can be added inside the cooling shell 203, and the ice cubes inside the cooling shell 203 can provide a cold source. Ice cubes are a low-cost and continuously stable cooling method, especially suitable for places where the power supply is unstable or limited. The cooled antifreeze can be added to the cold water jacket 202 through the liquid filling port. At the same time, the cold water jacket 202 can effectively transfer the cold provided by the ice cubes to the antifreeze, and the antifreeze can transfer the cold to the solvent inside the concentration tank 1. At the same time, the cold water jacket 202 increases the heat exchange area and enhances the cooling efficiency. The delivery pipe 208 can input external cold air, and the cold air convection can further take away some heat. In particular, the introduction of cold air at the bottom of the cold water jacket 202 can supplement the attenuation of the cooling effect after the ice cubes melt, thereby increasing the cold source of the system. The semiconductor refrigeration sheet 206 can further enhance the cooling effect, especially in the cold The top of the water jacket 202 surface can effectively offset the thermal gradient from top to bottom, make the internal temperature of the cold water jacket 202 more uniform, and improve the cooling efficiency. The antifreeze in the cold water jacket 202 is circulated through the delivery pump 204 to form forced convection. Compared with natural convection, it can more effectively take away the coldness of the ice cubes, improve the refrigeration efficiency, make the coldness inside the cold water jacket 202 uniform, and avoid the situation of overcooling at the lower end and insufficient coldness at the upper end. The setting of the one-way valve 210 prevents the antifreeze from being discharged through the delivery pipe 208, and the fan 207 can cool the semiconductor refrigeration plate 206 to ensure the normal operation of the semiconductor refrigeration plate 206. Compared with simple evaporative refrigeration, the present device has more diversified cooling methods, which can be flexibly complementary under different working conditions. At the same time, the setting of ice cubes and antifreeze can quickly reach the cooling concentration requirement temperature in the early stage, thereby improving the cooling efficiency.

[0024] Furthermore, the dispersion mechanism 3 includes a motor 301, the motor 301 is fixed to the surface of the concentration tank 1, the output shaft of the motor 301 penetrates into the concentration tank 1 and is fixed with a stirring rod 302, the top of the concentration tank 1 is connected to a feeding pipe 307, and the surface of the concentration tank 1 is connected to a solenoid valve 303;

[0025] The solvent to be concentrated can be added to the concentration tank 1 through the feeding pipe 307. When the motor 301 is started, the stirring rod 302 will stir the solvent so that the solvent can be more fully mixed and the solvent can be evenly contacted with the inner wall of the concentration tank 1 in all directions. The concentrated solvent can be discharged through the solenoid valve 303.

[0026] Furthermore, a connecting rod 304 is fixed on the surface of the stirring rod 302, a scraper 305 is fixed on the surface of the connecting rod 304, and the scraper 305 is slidably connected to the inner wall of the concentration tank 1;

[0027] When the stirring rod 302 rotates, the stirring rod 302 drives the scraper 305 to rotate synchronously through the connecting rod 304, so that the scraper 305 can scrape and clean the inner wall of the concentration tank 1, so that the ice crystals solidified on the inner wall of the concentration tank 1 can be cleaned.

[0028] Furthermore, a door is hinged on the top of the cooling shell 203, and a heat-insulating coating is sprayed on the surface of the cooling shell 203;

[0029] Ice cubes can be added into the cooling shell 203 normally by opening the box door, and the heat-insulating coating sprayed on the surface of the cooling shell 203 can slow down the loss rate of cold air from the cooling shell 203 to the outside, so that the ice cubes inside the cooling shell 203 can be preserved for a longer time.

[0030] Furthermore, the cooling shell 203 and the bottom of the cold water jacket 202 are both connected with a drain valve 211;

[0031] The provision of the drain valve 211 ensures that the water after the ice in the cooling shell 203 melts and the antifreeze liquid in the cold water jacket 202 can be discharged normally.

[0032] Furthermore, a closed door 306 is provided below the motor 301, the closed door 306 is hinged to the surface of the concentration tank 1, and a sealing ring is fixed on the surface of the closed door 306;

[0033] Opening the closed door 306 enables the operator to more easily remove the ice crystals inside the concentration tank 1 , while the sealing ring on the surface of the closed door 306 can improve the sealing performance of the surface of the concentration tank 1 .

[0034] Furthermore, a controller 4 is fixed on the surface of the concentration tank 1, and the controller 4 is electrically connected to the delivery pump 204, the semiconductor cooling sheet 206, the fan 207, the solenoid valve 303 and the motor 301;

[0035] Enables controller 4 to operate multiple devices.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements 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 a freeze concentration system, comprising a concentration tank (1), characterized in that: The surface of the concentration tank (1) is provided with a cooling mechanism (2) and a dispersion mechanism (3); The cooling mechanism (2) comprises a mounting frame (201), a cold water jacket (202) is fixed on the surface of the concentration tank (1), a cooling shell (203) is fixed below the surface of the cold water jacket (202), a delivery pump (204) is connected to the bottom of the cold water jacket (202), a return pipe (205) is connected to the surface of the delivery pump (204), one end of the return pipe (205) is connected to the top of the cold water jacket (202), two semiconductor refrigeration plates (206) are fixed above the surface of the cold water jacket (202), a fan (207) is fixed to the surface of the semiconductor refrigeration plate (206), an aeration pipe (209) is fixed to the bottom of the inner wall of the cold water jacket (202), a delivery pipe (208) is connected to the surface of the aeration pipe (209), the delivery pipe (208) passes through the cooling shell (203), and a check valve (210) is installed on the surface of the delivery pipe (208).

2. A cooling device for a freeze concentration system according to claim 1, characterized in that: The dispersion mechanism (3) comprises a motor (301), the motor (301) is fixed to the surface of the concentration tank (1), the output shaft of the motor (301) penetrates into the interior of the concentration tank (1) and is fixed with a stirring rod (302), the top of the concentration tank (1) is connected to a feeding pipe (307), and the surface of the concentration tank (1) is connected to a solenoid valve (303).

3. A cooling device for a freeze concentration system according to claim 2, characterized in that: A connecting rod (304) is fixed on the surface of the stirring rod (302), a scraper (305) is fixed on the surface of the connecting rod (304), and the scraper (305) is slidably connected to the inner wall of the concentration tank (1).

4. A cooling device for a freeze concentration system according to claim 1, characterized in that: A door is hinged on the top of the cooling shell (203), and a heat-insulating coating is sprayed on the surface of the cooling shell (203).

5. A cooling device for a freeze concentration system according to claim 1, characterized in that: The cooling shell (203) and the bottom of the cold water jacket (202) are both connected with a drain valve (211).

6. A cooling device for a freeze concentration system according to claim 2, characterized in that: A closed door (306) is provided below the motor (301), the closed door (306) is hinged to the surface of the concentration tank (1), and a sealing ring is fixed on the surface of the closed door (306).

7. A cooling device for a freeze concentration system according to claim 1, characterized in that: A controller (4) is fixed on the surface of the concentration tank (1).

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