Freezing crystallization tank for producing liquid crystal material

Abstract

The utility model provides a freezing crystallization tank for producing liquid crystal materials, which comprises a freezing box, and a discharge pipe, a support and a sealing cover are mounted on the freezing box. A flow guide inserting plate is installed in the freezing box in a sliding mode, a flow guide opening is formed in the flow guide inserting plate, a plurality of heat exchange freezing pipes are installed on the flow guide inserting plate, the heat exchange freezing pipes are communicated with a flow dividing cover installed on the inner wall of the freezing box, and the flow dividing cover is communicated with a refrigerating unit fixedly installed outside the freezing box. A vortex propulsion head is arranged in the freezing box, and the vortex propulsion head is fixed with a driving part fixedly mounted outside the freezing box; according to the utility model, the heat exchange efficiency with the liquid crystal material is greatly improved, and the problem that the traditional cooling depth is limited is solved. By combining the shunting cover and the efficient refrigerating unit, rapid and uniform cooling is realized, and the cooling efficiency and the product quality are improved. The two vortex propelling heads arranged diagonally in the freezing box enhance stirring power and eliminate stirring dead angles. The flow guide plugboard is flexible and adjustable in design and convenient to clean and maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to frozen crystallization tank technical field, especially relate to a frozen crystallization tank for producing liquid crystal material. BACKGROUND

[0002] Liquid crystal display screen with its outstanding display effect in numerous display screen type and stand out, and its manufacturing core - the production of liquid crystal material, depends on a kind of efficient frozen crystallization tank technology.Liquid crystal material must be fully stirred before being put into use to ensure its performance, especially for the liquid crystal added solid chiral agent, it needs to experience a specific process of heating to 60 degrees Celsius, then rapidly cooling to room temperature and stirring again.

[0003] For example, the Chinese utility model patent with publication number CN209451348U introduces a frozen crystallization tank design for producing liquid crystal material.The design is configured with coil mechanism inside the outer tank, aiming at cooling the liquid crystal material in the outer tank, at the same time, the uniform stirring of liquid crystal material is realized by using the stirring shaft placed in the center.However, this design has several limitations: the coil mechanism relies on the heat exchange between the outer wall of the outer tank and the liquid crystal material to realize the cooling effect, which limits the ability of the coil to cool deeply into the interior of the outer tank, and further affects the cooling efficiency.On the other hand, the stirring shaft at the central position faces challenges when stirring the liquid crystal material far from its position, resulting in certain dead angles in the stirring process, so that the cooling temperature of the liquid crystal material in the outer tank is uneven.

[0004] Therefore, it is necessary to invent a frozen crystallization tank for producing liquid crystal material. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a frozen crystallization tank for producing liquid crystal material, which comprises a freezing tank, a discharge pipe, a support, a sealing cover, a flow guide plate, a heat exchange freezing pipe, a flow distribution cover, a refrigeration unit, a flow guide port, a vortex propelling head and a driving part, the freezing tank is provided below with an L-shaped discharge pipe, wherein a support is fixedly installed below; the sealing cover is hingedly installed on the upper part of the freezing tank; at least two flow guide plates are slidably installed inside the freezing tank, a flow guide port is formed on each flow guide plate, a plurality of heat exchange freezing pipes are fixedly installed on the flow guide plate, the heat exchange freezing pipe is connected with the flow distribution cover fixedly installed on the inner wall of the freezing tank, and the flow distribution cover is connected with the refrigeration unit fixedly installed outside the freezing tank; vortex propelling heads are arranged at two corners inside the freezing tank, and the vortex propelling heads are fixedly connected with the output end of the driving part fixedly installed outside the freezing tank.

[0006] Preferably, the inner wall of the freezer is provided with a sliding groove matched with the flow guide insert plate, the flow guide insert plate is horizontally arranged in the freezer, a buckle groove is arranged above the middle of each flow guide insert plate, and a flow guide opening is arranged at both ends of each flow guide insert plate.

[0007] Preferably, the heat exchange freezing pipes fixedly installed on the flow guide insert plates are vertically distributed, the heat exchange freezing pipes are in a serpentine structure, the heat exchange freezing pipes are located in the freezer and have a spacing therebetween.

[0008] Preferably, the two ends of each heat exchange freezing pipe are connected with two parallel shunt covers, one of the shunt covers is connected with the output end of the refrigeration unit, and the other shunt cover is connected with the input end of the refrigeration unit, and the shunt cover and the heat exchange freezing pipe are connected through flanges.

[0009] Preferably, the flow guide insert plate is provided with a vortex propelling head on one side and close to the flow guide opening.

[0010] Preferably, the vortex propelling head is provided with two vortex propelling heads which are oppositely arranged and located on the same diagonal line of the freezer.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] The heat exchange freezing pipes are vertically distributed and in a serpentine structure, the heat exchange efficiency with the liquid crystal material is significantly improved, the pipes are deeply arranged in the freezer, the problem that the cooling depth of the traditional disc pipe mechanism is limited is solved, and the liquid crystal material can be uniformly cooled.

[0013] The two vortex propelling heads are oppositely arranged on the same diagonal line, the unique layout not only enhances the stirring power, but also ensures that the liquid crystal material in the whole freezer space can be effectively stirred, especially in the area far away from the stirring shaft.

[0014] The utility model also pays attention to the flexibility and maintainability of equipment. The design of the flow guide plugboard allows flexible adjustment according to the type, quantity and cooling requirements of liquid crystal materials, meeting the needs of different production scenarios. The combination of the sliding groove and the buckle groove makes the installation and disassembly of the flow guide plugboard simple and fast, facilitating daily cleaning and maintenance. At the same time, the heat exchange freezing pipe and the flow distribution cover are connected by flanges, which facilitates inspection and maintenance, effectively prolonging the service life of the equipment. The overall design is compact and reasonable, reducing the floor area, simplifying the operation process and reducing the operation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the utility model.

[0016] Figure 2 is another overall structure schematic diagram of the utility model.

[0017] Figure 3 is the A place local amplification structure schematic diagram of the utility model Figure 2 .

[0018] In the figure:

[0019] Freezing box 1, discharge pipe 2, support 3, sealing cover 4, flow guide plugboard 5, heat exchange freezing pipe 6, flow distribution cover 7, refrigeration unit 8, flow guide port 9, vortex propelling head 10, driving part 11. DETAILED DESCRIPTION

[0020] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the scope of the protection of the utility model.

[0021] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in the accompanying Figure 1 to the accompanying Figure 3 drawings:

[0023] The utility model provides a production liquid crystal material uses frozen crystallization tank, including freezer 1, discharge pipe 2, support 3, sealing cover 4, flow guide plugboard 5, heat exchange freezing pipe 6, shunt cover 7, refrigerating unit 8, flow guide mouth 9, vortex propulsion head 10 and drive part 11, freezer 1 below installation is provided with L type discharge pipe 2, wherein below fixed mounting has support 3, freezer 1 is sealed hinged mounting sealing cover 4, freezer 1 inside sliding installation has at least two flow guide plugboard 5, each flow guide plugboard 5 is all set up flow guide mouth 9, flow guide plugboard 5 is fixedly installed with a plurality of heat exchange freezing pipe 6, heat exchange freezing pipe 6 and freezer 1 inner wall fixed mounting shunt cover 7 are communicated, shunt cover 7 and freezer 1 outside fixed mounting refrigerating unit 8 are communicated, freezer 1 inside two corners are provided with vortex propulsion head 10, vortex propulsion head 10 with freezer 1 outside fixed mounting drive part 11 output end is fixed.

[0024] Further, the inner wall of the freezer 1 is designed with sliding grooves that perfectly fit the flow guide plates 5. These sliding grooves ensure that the flow guide plates 5 can be stably and smoothly arranged horizontally inside the freezer 1. The middle position of each flow guide plate 5 is ingeniously provided with a buckle groove, which facilitates installation and removal. The flow guide plates 5 maintain a certain distance, which allows the liquid crystal material to flow freely during cooling, ensuring more uniform cooling effect. It is particularly worth mentioning that the two ends of each flow guide plate 5 are provided with flow guide openings 9, which not only optimize the flow path of the liquid crystal material, but also further improve the cooling efficiency.

[0025] Further, the flow guide plates 5 are made of high-strength, corrosion-resistant stainless steel material, and the design of sliding grooves and buckle grooves ensures the stability and convenience of the flow guide plates 5 during installation. The size of the flow guide openings 9 is accurately calculated to ensure that the liquid crystal material will not be hindered during flow, while maximizing the cooling effect.

[0026] Further, a plurality of vertically distributed heat exchange freezing pipes 6 are fixedly installed on the flow guide plates 5. These heat exchange freezing pipes 6 adopt a unique serpentine pipe structure, which not only greatly increases the contact area with the liquid crystal material, but also ensures more uniform cooling effect. The heat exchange freezing pipes 6 are located inside the freezer 1 and maintain a certain distance between each other, which avoids thermal interference between the pipes and further improves the cooling efficiency.

[0027] Further, the heat exchange freezing pipes 6 are made of high-quality copper material, which has good thermal conductivity and corrosion resistance. The serpentine design allows the pipes to penetrate deeper into the liquid crystal material, achieving more efficient heat exchange. At the same time, the distance between the pipes is accurately calculated to ensure the uniformity and maximization of the cooling effect.

[0028] Further, the two ends of each heat exchange freezing pipe 6 are connected to two parallelly arranged flow distribution covers 7. One of the flow distribution covers 7 is connected to the output end of the refrigeration unit 8 for receiving the cooling medium, and the other flow distribution cover 7 is connected to the input end of the refrigeration unit 8 for returning the cooled medium to the refrigeration unit 8. The flow distribution cover 7 and the heat exchange freezing pipe 6 are connected by flanges, which not only facilitates installation and removal, but also ensures the stability and sealing of the connection.

[0029] Further, the flow distributor 7 is also made of high-strength, corrosion-resistant stainless steel material. The flange connection design makes the connection between the flow distributor 7 and the heat exchange freezing tube 6 more firm and reliable, while facilitating daily maintenance and inspection. The output and input ends of the refrigeration unit 8 are respectively connected to the flow distributor 7, ensuring smooth circulation and efficient use of the cooling medium. The refrigeration unit 8 absorbs and removes the heat in the liquid medium through circulating refrigerant, thereby achieving cooling effect. The refrigeration unit 8 is composed of key components such as compressor, condenser, expansion valve and evaporator, which work together to form an efficient refrigeration cycle.

[0030] Further, vortex propellers 10 are arranged on one side of the flow guide plate 5. These vortex propellers 10 are arranged close to the flow guide port 9, ensuring that the liquid crystal material can be fully stirred and pushed when passing through the flow guide port 9. The design of the vortex propeller 10 not only enhances the stirring effect, but also eliminates the stirring dead angle, so that the liquid crystal material always maintains an ideal uniform state during the cooling process.

[0031] Further, the vortex propeller 10 is driven by a high-performance motor (driving part 11) and can produce strong stirring force. Two vortex propellers 10 are arranged on the same diagonal line, which ensures that the liquid crystal material in the entire freezer 1 can be effectively stirred. At the same time, the material and structural design of the vortex propeller 10 are carefully considered to ensure its stability and durability during long-term operation.

[0032] The working principle is as follows: first, open the sealing cover 4 and pour the liquid crystal material to be cooled into the freezer 1. The liquid crystal material is freely distributed in the space inside the freezer 1, preparing for the cooling crystallization process. Then, close the sealing cover 4 to ensure that the inside of the freezer 1 is in a sealed state to prevent external air or impurities from entering and affecting the cooling effect. Then, start the refrigeration unit 8. The refrigeration unit 8 starts to work and absorbs and removes the heat in the liquid crystal material inside the freezer 1 through circulating refrigerant. The output end of the refrigeration unit 8 delivers the cooling medium to the flow distributor 7 connected to one end.

[0033] The cooling medium flows out of the flow distributor 7 and enters the heat exchange freezing tube 6 through flange connection. The heat exchange freezing tube 6 adopts a serpentine structure, which greatly increases the contact area with the liquid crystal material, thereby achieving more efficient heat exchange. The liquid crystal material flows around the heat exchange freezing tube 6 and is cooled by the cooling medium, and the temperature gradually decreases. The cooled medium flows out of the other end of the heat exchange freezing tube 6 and enters the other flow distributor 7 connected to the input end of the refrigeration unit 8, and then returns to the refrigeration unit 8 for further cooling, forming a cooling cycle.

[0034] During the cooling process of the liquid crystal material, the flow guide plates 5 play a key role. The flow guide plates 5 are slidingly installed inside the freezer 1 and are kept stable by sliding grooves and buckling grooves. The flow guide plates 5 are kept at a certain distance apart to allow the liquid crystal material to flow freely. At the same time, the flow guide openings 9 opened on the flow guide plates 5 optimize the flow path of the liquid crystal material, further improving the cooling efficiency.

[0035] In addition, the vortex propeller head 10 is arranged inside the freezer 1 near the flow guide openings 9. The vortex propeller head 10 is driven by a high-performance motor (driving component 11) to generate strong stirring force. The stirring action of the vortex propeller head 10 ensures that the liquid crystal material can be fully stirred and pushed when passing through the flow guide openings 9, eliminating stirring dead angles and ensuring that the liquid crystal material always maintains an ideal uniform state during the cooling process.

[0036] As the cooling process proceeds, the temperature of the liquid crystal material gradually decreases until it reaches the required crystallization temperature. At this time, the valve below the L-shaped discharge pipe 2 can be opened to discharge the cooled and crystallized liquid crystal material from the freezer 1.

[0037] Any similar technical solution designed by the person skilled in the art based on the technical solution of the present application or inspired by the technical solution of the present application, which achieves the above technical effects, falls within the protection scope of the present application.

Claims

1. A freeze crystallization tank for producing liquid crystal material, characterized by, The utility model provides a refrigeration device, including freezer (1), discharge pipe (2), support (3), sealing cover (4), diversion plugboard (5), heat exchange refrigeration pipe (6), shunt cover (7), refrigerating unit (8), diversion port (9), vortex propulsion head (10) and drive part (11), freezer (1) below installation setting has L type discharge pipe (2), wherein below fixed mounting has support (3);Freezer (1) upper sealing hinged mounting has sealing cover (4);Freezer (1) inside sliding installation has at least two diversion plugboard (5), each diversion plugboard (5) is equipped with diversion port (9), diversion plugboard (5) is fixedly installed with a plurality of heat exchange refrigeration pipe (6), heat exchange refrigeration pipe (6) is connected with shunt cover (7) fixedly installed in freezer (1) inner wall, shunt cover (7) is connected with refrigerating unit (8) fixedly installed outside freezer (1);Freezer (1) inside two corners are provided with vortex propulsion head (10), and vortex propulsion head (10) is fixed with drive part (11) output end fixedly installed outside freezer (1).

2. The freeze crystallization tank for producing liquid crystal material according to claim 1, wherein: The inner wall of the freezer (1) is provided with a sliding groove matched with the diversion plugboard (5), the diversion plugboard (5) is horizontally arranged in the freezer (1), each diversion plugboard (5) is provided with a buckle groove in the middle, and each diversion plugboard (5) has a spacing allowing liquid crystal material to flow, wherein the two ends of each diversion plugboard (5) are provided with diversion ports (9).

3. The freeze crystallization tank for producing liquid crystal material according to claim 2, wherein: A plurality of heat exchange refrigeration pipes (6) fixedly installed on the diversion plugboard (5) are vertically distributed, the heat exchange refrigeration pipe (6) is a serpentine curved pipe structure, the heat exchange refrigeration pipe (6) is located in the freezer (1) and has a spacing between each other.

4. The freeze crystallization tank for producing liquid crystal material according to claim 3, wherein: The two ends of each heat exchange refrigeration pipe (6) are connected with two parallel shunt covers (7), one shunt cover (7) is connected with the output end of the refrigerating unit (8), and the other shunt cover (7) is connected with the input end of the refrigerating unit (8), and the shunt cover (7) and the heat exchange refrigeration pipe (6) are connected by flanges.

5. The freeze crystallization tank for producing liquid crystal material according to claim 4, wherein: One side of the diversion plugboard (5) is provided with the vortex propulsion head (10) close to the diversion port (9), and the diversion port (9) allows the liquid crystal material to pass through.

6. The freeze crystallization tank for producing liquid crystal material according to claim 5, wherein: The vortex propulsion head (10) is provided with two vortex propulsion heads (10) arranged opposite to each other and located on the same diagonal line of the freezer (1).

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