An electronic coating polyurethane prepolymer synthesis device

Abstract

The utility model discloses an electronic paint polyurethane prepolymer synthesis equipment, including shell subassembly, the lower extreme of shell subassembly is installed with temperature control component, and the inside of shell subassembly is installed with heat cycle subassembly, one side of temperature control component is installed with cold cycle subassembly, and temperature control component includes oil tank, partition, cooling pipe and condensing unit, the inside of oil tank is installed with partition, and the inside lower extreme of oil tank is installed with cooling pipe, the end of cooling pipe is connected with condensing unit, the shell subassembly includes inner cylinder, outer sleeve, discharge port and electromagnetic valve, this equipment adopts independent cooling structure, and this cooling structure will give priority to to the cooling treatment of equipment inside, guarantees the efficiency of equipment's work, then utilizes the remaining cold gas to control temperature of heat transfer oil, and the equipment is convenient for the constant temperature maintenance after cooling, and will utilize the water flow force in the rotation stirring process, and the inner wall of equipment is cleaned, guarantees the cleanness of equipment inside.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane prepolymer synthesis technology, specifically to a polyurethane prepolymer synthesis device for electronic coatings. Background Technology

[0002] The polyurethane prepolymer synthesis equipment for electronic coatings is a highly efficient and precise production device designed specifically for the electronic coatings industry. It is used to synthesize high-quality polyurethane prepolymers. The equipment integrates advanced chemical reaction technology and automated control system to ensure the stability of the synthesis process and the uniformity of the product. It is widely used in the production and manufacturing of electronic coatings.

[0003] In most existing polyurethane prepolymer synthesis equipment for electronic coatings, the temperature of the heat transfer oil is directly controlled during operation, and then the heat transfer oil controls the temperature inside the equipment. However, during the cooling process, the heat transfer oil needs to be cooled down by a refrigeration structure first, which is a very slow process. This will cause the temperature inside the equipment to not reach the required temperature in time, which will have a certain impact on the working efficiency of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a synthesis device for polyurethane prepolymer of electronic coatings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: It includes a housing assembly, a temperature control assembly installed at the lower end of the housing assembly, a heat circulation assembly installed inside the housing assembly, a cold circulation assembly installed on one side of the temperature control assembly, and the temperature control assembly includes an oil tank, a partition plate, a cooling pipe, and a condenser unit. The partition plate is installed inside the oil tank, and a cooling pipe is installed at the lower end of the inside of the oil tank. The end of the cooling pipe is connected to the condenser unit.

[0006] Preferably, the outer shell assembly includes an inner cylinder, an outer sleeve, a discharge port, and a solenoid valve, and the outer sleeve is installed on the outside of the inner cylinder, and a discharge port is installed on the lower end of one side of the inner cylinder, and a solenoid valve is installed on the discharge port.

[0007] By adopting the above technical solution, temperature leakage can be avoided, and the generated polymer can be easily discharged.

[0008] Preferably, the heat circulation assembly includes a first pump body, a first pipe, a second pipe, and a third pipe, wherein the first pipe is connected to the water inlet of the first pump body, the second pipe is connected to the water outlet of the first pump body, and the third pipe is connected to the end of the second pipe away from the first pipe.

[0009] By adopting the above technical solution, the heat transfer oil used for heating and temperature control can be circulated.

[0010] Preferably, the cold circulation assembly includes a second pump body, a fourth pipe, a fifth pipe, a sixth pipe, and a seventh pipe, wherein the outlet of the second pump body is connected to the fourth pipe, the end of the fourth pipe away from the second pump body is connected to the fifth pipe, the end of the fifth pipe away from the fourth pipe is connected to the sixth pipe, and the end of the sixth pipe away from the fifth pipe is connected to the seventh pipe.

[0011] By adopting the above technical solution, the heat transfer oil used for cooling can be circulated.

[0012] Preferably, a stirring assembly is installed inside the outer shell assembly, and the stirring assembly includes a motor, a rotating rod, a rotating outer sleeve, a wing plate, and a stirring rod. The rotating end of the motor is connected to the rotating rod, and a rotating outer sleeve is provided outside the rotating rod. A wing plate is connected to the upper outer side of the rotating outer sleeve, and a stirring rod is installed at the lower outer side of the rotating outer sleeve.

[0013] By adopting the above technical solution, the inside of the equipment can be stirred, which facilitates the mixing of raw materials.

[0014] Preferably, a cleaning component is installed on the lower exterior of the stirring assembly, and the cleaning component includes a follower rod, a worm gear, a transmission rope and a cleaning brush. The worm gear is installed on the end of the follower rod away from the stirring assembly, and the transmission rope is connected to the worm gear in a counterclockwise direction. The cleaning brush is connected to the end of the transmission rope away from the worm gear.

[0015] By adopting the above technical solution, the inner wall of the equipment can be cleaned and kept clean.

[0016] Preferably, the drive rope is connected to a pushing component on the side near the stirring component, and the pushing component includes a fixed plate, a spring and a mounting bracket. The side of the fixed plate away from the stirring component is connected to the spring, and the end of the spring away from the fixed plate is connected to the mounting bracket.

[0017] By adopting the above technical solution, the cleaning components can be made to come into contact with the inner wall of the equipment.

[0018] Compared with the prior art, the advantages of this application are: the equipment adopts an independent cooling structure, which prioritizes cooling the inside of the equipment to ensure the efficiency of the equipment. Then, the remaining cold air is used to control the temperature of the heat transfer oil, which facilitates the maintenance of constant temperature after cooling. During the rotation and stirring process, the equipment uses water flow to clean the inner wall of the equipment, ensuring the cleanliness of the inside of the equipment.

[0019] This invention installs a heating resistor and a temperature sensor in the space above the partition plate. The heat-conducting oil in the space above the partition plate is circulated through a thermal circulation component to bring the internal temperature of the equipment to the required level. When cooling is required, the low-temperature heat-conducting oil below the partition plate is circulated through a cold circulation component to directly cool the internal temperature of the outer shell component. At the same time, the cooled low-temperature heat-conducting oil also cools the heat-conducting oil in the space above the partition plate, bringing it to and maintaining the required temperature. Subsequently, the thermal circulation component continues to circulate, achieving precise temperature control. Through the intervention of the cold circulation component, the internal temperature of the equipment can be rapidly reduced and maintained at a constant temperature after cooling.

[0020] In this invention, the flow of liquid during stirring drives the worm gear, which in turn drives the cleaning brush to rotate via the transmission rope. This allows the cleaning brush to clean the inside of the equipment, while the pushing component provides a continuous pushing force to the cleaning brush, ensuring that the cleaning brush remains in close contact with the inner wall of the equipment, thus facilitating the cleaning process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a polyurethane prepolymer synthesis device for electronic coatings according to this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the temperature control component of an electronic coating polyurethane prepolymer synthesis equipment according to the present invention.

[0023] Figure 3 This is a schematic diagram of the thermal circulation component structure of an electronic coating polyurethane prepolymer synthesis equipment according to the present invention;

[0024] Figure 4 This is a schematic diagram of the cold cycle component structure of an electronic coating polyurethane prepolymer synthesis equipment according to the present invention;

[0025] Figure 5 This is a schematic diagram of the stirring assembly structure of an electronic coating polyurethane prepolymer synthesis equipment according to the present invention;

[0026] Figure 6 This is an enlarged structural schematic diagram of the cleaning component of an electronic coating polyurethane prepolymer synthesis equipment according to this utility model.

[0027] In the diagram: 1. Outer shell assembly; 101. Inner cylinder; 102. Outer sleeve; 103. Discharge port; 104. Solenoid valve; 2. Temperature control assembly; 201. Oil reservoir; 202. Divider plate; 203. Cooling pipe; 204. Condensing unit; 3. Heat circulation assembly; 301. First pump body; 302. First pipe; 303. Second pipe; 304. Third pipe; 4. Cold circulation assembly; 401. Second pump body; 402. 403. Fourth pipe; 404. Fifth pipe; 405. Sixth pipe; 406. Seventh pipe; 507. Stirring assembly; 501. Motor; 502. Rotating rod; 503. Rotating outer sleeve; 504. Wing plate; 505. Stirring rod; 6. Cleaning assembly; 601. Following rod; 602. Worm gear; 603. Transmission rope; 604. Cleaning brush; 7. Pushing assembly; 701. Fixing plate; 702. Spring; 703. Mounting bracket. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 The present invention provides a technical solution: including a shell assembly 1, a temperature control assembly 2 installed at the lower end of the shell assembly 1, a heat circulation assembly 3 installed on the inner side of the shell assembly 1, a cold circulation assembly 4 installed on one side of the temperature control assembly 2, and the temperature control assembly 2 including an oil tank 201, a partition plate 202, a cooling pipe 203 and a condenser unit 204, the partition plate 202 is installed inside the oil tank 201, and a cooling pipe 203 is installed at the lower end of the inside of the oil tank 201, and the end of the cooling pipe 203 is connected to the condenser unit 204;

[0030] The dividing plate 202 divides the oil tank 201 into two areas. The upper area is responsible for heating and maintaining a constant temperature, while the lower area is responsible for cooling. A heating resistor and a temperature sensor are installed in the space above the dividing plate 202. The heat transfer oil in the space above the dividing plate 202 is circulated through the heat circulation component 3 to bring the internal temperature of the equipment to the required level. When cooling is required, the low-temperature heat transfer oil below the dividing plate 202 is circulated through the cold circulation component 4 to directly cool the internal temperature of the outer shell component 1. At the same time, the cooled low-temperature heat transfer oil also cools the heat transfer oil in the space above the dividing plate 202 to reach and maintain the required temperature. Subsequently, the heat circulation component 3 continues to circulate to achieve precise temperature control. Through the intervention of the cold circulation component 4, the internal temperature of the equipment can be quickly cooled and maintained in a constant temperature operating state after cooling. The area below the dividing plate 202 is cooled by the condensing unit 204 and the cooling pipe 203. The condensing unit 204 includes, but is not limited to, a compressor, an expansion valve, and heat dissipation pipes.

[0031] The outer shell assembly 1 includes an inner cylinder 101, an outer sleeve 102, a discharge port 103 and a solenoid valve 104. The outer sleeve 102 is installed on the outside of the inner cylinder 101, and the discharge port 103 is installed on the lower end of one side of the inner cylinder 101. The solenoid valve 104 is installed on the discharge port 103.

[0032] The outer sleeve 102 is fitted over the inner cylinder 101 and mainly wraps around the hot circulation component 3 and the cold circulation component 4 to prevent the temperature of the hot circulation component 3 and the cold circulation component 4 from leaking to the outside during operation, which would affect the temperature transfer effect to the inside of the inner cylinder 101. The opening and closing of the discharge port 103 can be controlled by the solenoid valve 104, thereby controlling when the equipment discharges materials.

[0033] The heat circulation assembly 3 includes a first pump body 301, a first pipe 302, a second pipe 303 and a third pipe 304. The first pipe 302 is connected to the water inlet of the first pump body 301, the second pipe 303 is connected to the water outlet of the first pump body 301, and the third pipe 304 is connected to the end of the second pipe 303 away from the first pipe 302.

[0034] The first pipe 302 is inserted into the area above the dividing plate 202. The first pump body 301 draws heat transfer oil from the first pipe 302 and then delivers it to the second pipe 303. The second pipe 303 then delivers it to the third pipe 304 to control the temperature inside the inner cylinder 101. The third pipe 304 is spirally wound around the inner cylinder 101 and is made of a high thermal conductivity material.

[0035] The cold circulation assembly 4 includes a second pump body 401, a fourth pipe 402, a fifth pipe 403, a sixth pipe 404, and a seventh pipe 405. The outlet of the second pump body 401 is connected to the fourth pipe 402. The end of the fourth pipe 402 away from the second pump body 401 is connected to the fifth pipe 403. The end of the fifth pipe 403 away from the fourth pipe 402 is connected to the sixth pipe 404. The end of the sixth pipe 404 away from the fifth pipe 403 is connected to the seventh pipe 405.

[0036] The cooled heat transfer oil is transported through the second pump body 401 to the fourth pipe 402, and then from the fourth pipe 402 to the fifth pipe 403 to cool the inner cylinder 101. The cooled heat transfer oil is then transported to the sixth pipe 404 to control the temperature of the heat transfer oil above the dividing plate 202. Finally, this part of the heat transfer oil will flow back to the oil storage tank 201 through the seventh pipe 405 for circulation. The fifth pipe 403 is spirally wound on the inner cylinder 101, and both the fifth pipe 403 and the sixth pipe 404 are made of high thermal conductivity materials.

[0037] The stirring assembly 5 is installed inside the outer shell assembly 1. The stirring assembly 5 includes a motor 501, a rotating rod 502, a rotating outer sleeve 503, a wing plate 504, and a stirring rod 505. The rotating end of the motor 501 is connected to the rotating rod 502, and the rotating outer sleeve 503 is provided outside the rotating rod 502. The upper outer end of the rotating outer sleeve 503 is connected to the wing plate 504, and the stirring rod 505 is installed at the lower outer end of the rotating outer sleeve 503.

[0038] When the motor 501 is turned on, the rotating rod 502 drives the rotating outer sleeve 503 to rotate, which in turn drives the stirring rod 505 to perform stirring. At the same time, the wing plate 504, using Bernoulli's principle, will use the force of the rotating rod 502 to create buoyancy. The faster the rotating rod 502 rotates, the faster the wing plate 504 rises. Using this principle, the rotation speed of the rotating rod 502 can be controlled to raise and lower the stirring rod 505, thus enabling the stirring rod 505 to stir liquids at different heights.

[0039] A cleaning component 6 is installed on the lower exterior of the stirring component 5. The cleaning component 6 includes a follower rod 601, a worm gear 602, a transmission rope 603, and a cleaning brush 604. The worm gear 602 is installed on the end of the follower rod 601 away from the stirring component 5. The transmission rope 603 is connected to the worm gear 602 in a counterclockwise direction. The cleaning brush 604 is connected to the end of the transmission rope 603 away from the worm gear 602.

[0040] During the stirring process, the follower rod 601 will drive the worm gear 602 to rotate. At this time, the impact force of the liquid will drive the worm gear 602 to rotate, thereby causing the transmission rope 603 to drive the cleaning brush 604 to rotate, cleaning the inner wall of the inner cylinder 101.

[0041] During the stirring process, the flow of liquid will drive the worm gear 602 to work, which will drive the cleaning brush 604 to rotate through the transmission rope 603, so that the cleaning brush 604 cleans the inside of the equipment. At the same time, the pushing component 7 will exert a continuous pushing force on the cleaning brush 604, so that the cleaning brush 604 can maintain a close contact with the inner wall of the equipment, which facilitates the cleaning work.

[0042] The drive rope 603 is connected to the push assembly 7 on the side near the stirring assembly 5. The push assembly 7 includes a fixed plate 701, a spring 702 and a mounting bracket 703. The side of the fixed plate 701 away from the stirring assembly 5 is connected to the spring 702, and the end of the spring 702 away from the fixed plate 701 is connected to the mounting bracket 703.

[0043] During the cleaning process, the mounting bracket 703 pushes the cleaning brush 604 through the elastic structure formed between the spring 702 and the fixing plate 701, so that the cleaning brush 604 can make good contact with the inner wall of the inner cylinder 101 to carry out the cleaning work.

[0044] The implementation principle of this application is as follows: First, polyol is introduced into the inner cylinder 101 through the feeding port at the rear of the inner cylinder 101. An external vacuum device is used to evacuate the inside of the equipment. The heat transfer oil above the dividing plate 202 is heated by a heating resistor and a temperature sensor. The heat transfer oil is then circulated through the heat circulation component 3, further heating the inside of the equipment. This dual heating and vacuum treatment dehydrates the polyol. After the equipment has reacted for a period of time, the vacuum is closed, and the condenser unit 204 and cooling pipe 203 operate to allow the dividing plate to dehydrate. The heat transfer oil supplied by plate 202 is at a low temperature, and then circulates and cools down through the cold circulation component 4. At the same time, isocyanate is added to the equipment through the feed port. The isocyanate is slowly added dropwise using a metering pump. Meanwhile, the stirring component 5 accelerates the mixing of various raw materials, and the pushing component 7 continuously pushes the cleaning component 6 to clean the inside of the equipment. After the isocyanate is added, the heat transfer oil on the dividing plate 202 is heated by a heating resistor. At this time, the reaction can be allowed to take place inside the equipment, and samples are taken from time to time to test the NCO content of the prepolymer. When the reaction reaches the standard, the material inside the equipment is cooled by the cooling system of the cold circulation component 4, and then the prepolymer is discharged from the discharge port 103 and collected.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic coating polyurethane prepolymer synthesis device, comprising a housing assembly (1), characterized in that: A temperature control component (2) is installed at the lower end of the outer shell assembly (1), and a heat circulation component (3) is installed on the inner side of the outer shell assembly (1). A cold circulation component (4) is installed on one side of the temperature control component (2). The temperature control component (2) includes an oil tank (201), a partition plate (202), a cooling pipe (203), and a condenser unit (204). The partition plate (202) is installed inside the oil tank (201), and a cooling pipe (203) is installed at the lower end of the inside of the oil tank (201). The end of the cooling pipe (203) is connected to the condenser unit (204).

2. The electronic coating polyurethane prepolymer synthesis equipment according to claim 1, characterized in that: The outer shell assembly (1) includes an inner cylinder (101), an outer sleeve (102), a discharge port (103), and a solenoid valve (104). The outer sleeve (102) is installed on the outside of the inner cylinder (101). The discharge port (103) is installed on the lower end of one side of the inner cylinder (101), and the solenoid valve (104) is installed on the discharge port (103).

3. The equipment for synthesizing polyurethane prepolymer for electronic coatings according to claim 1, characterized in that: The heat circulation assembly (3) includes a first pump body (301), a first pipe (302), a second pipe (303) and a third pipe (304), and the first pipe (302) is connected to the water inlet of the first pump body (301), the second pipe (303) is connected to the water outlet of the first pump body (301), and the third pipe (304) is connected to the end of the second pipe (303) away from the first pipe (302).

4. The electronic coating polyurethane prepolymer synthesis equipment according to claim 1, characterized in that: The cold circulation assembly (4) includes a second pump body (401), a fourth pipe (402), a fifth pipe (403), a sixth pipe (404), and a seventh pipe (405). The outlet of the second pump body (401) is connected to the fourth pipe (402). The end of the fourth pipe (402) away from the second pump body (401) is connected to the fifth pipe (403). The end of the fifth pipe (403) away from the fourth pipe (402) is connected to the sixth pipe (404). The end of the sixth pipe (404) away from the fifth pipe (403) is connected to the seventh pipe (405).

5. The equipment for synthesizing polyurethane prepolymer for electronic coatings according to claim 1, characterized in that: The stirring assembly (5) is installed inside the outer shell assembly (1), and the stirring assembly (5) includes a motor (501), a rotating rod (502), a rotating outer sleeve (503), a wing plate (504) and a stirring rod (505). The rotating end of the motor (501) is connected to the rotating rod (502), and the rotating outer sleeve (503) is provided on the outside of the rotating rod (502). The upper outer end of the rotating outer sleeve (503) is connected to the wing plate (504), and the stirring rod (505) is installed on the lower outer end of the rotating outer sleeve (503).

6. The electronic coating polyurethane prepolymer synthesis equipment according to claim 5, characterized in that: A cleaning component (6) is installed on the lower exterior of the stirring assembly (5), and the cleaning component (6) includes a follower rod (601), a worm gear (602), a transmission rope (603) and a cleaning brush (604). The worm gear (602) is installed on the end of the follower rod (601) away from the stirring assembly (5), and the transmission rope (603) is connected to the worm gear (602) in a counterclockwise direction. The cleaning brush (604) is connected to the end of the transmission rope (603) away from the worm gear (602).

7. The equipment for synthesizing polyurethane prepolymer for electronic coatings according to claim 6, characterized in that: The drive rope (603) is connected to a push assembly (7) on the side near the stirring assembly (5), and the push assembly (7) includes a fixed plate (701), a spring (702) and a mounting bracket (703). The fixed plate (701) is connected to the spring (702) on the side away from the stirring assembly (5), and the end of the spring (702) away from the fixed plate (701) is connected to the mounting bracket (703).

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