Insulating paint resin production system

Abstract

The utility model provides an insulating paint resin production system which comprises a reaction kettle, a rectifying tower arranged at the top end of the reaction kettle, a condenser and a liquid receiving tank, a sensor is arranged on the reaction kettle, the rectifying tower, the condenser and the liquid receiving tank are connected through pipelines, the pipelines comprise a pipeline I, a pipeline II and a pipeline VI, and a pneumatic three-way valve is arranged on the pipeline VI. The pneumatic three-way valve is controlled by a sensor, along with continuous rising of the reaction temperature, raw materials in the reaction kettle react with a solvent to generate insulating paint resin, generated process water and methanol are separated through a rectifying tower and conveyed into a condenser through a first pipeline, and the process water and methanol are liquefied through the condenser and then enter a liquid receiving tank through a second pipeline to be stored. When the reaction temperature in the reaction kettle exceeds the boiling points of the raw materials and the solvent, the sensor controls the pneumatic three-way valve to open the pipeline VI, and at the moment, all condensed substances directly flow back to the reaction kettle. The insulating paint resin production system disclosed by the utility model can reduce the loss of raw materials and solvents and improve the yield.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating varnish resin preparation, in particular to an insulating varnish resin production system. Background Art

[0002] The synthesis of insulating varnish resin is primarily an alkyd-type reaction, also involving some imidization modification reactions. During the synthesis reaction, process water and methanol are produced. These process water and methanol must be continuously separated from the reaction system as effluents to ensure the reaction proceeds in the forward direction. In the initial stages of insulating varnish resin synthesis, the reaction temperature is low and does not exceed the boiling point of the raw materials and solvent. However, as the degree of polymerization increases, the synthesis becomes more difficult, and the reaction temperature gradually increases, exceeding the boiling point of the raw materials and solvent. This results in continuous loss of raw materials and solvent in the effluent, making reflux control difficult, resulting in severe raw material loss and low production efficiency.

[0003] The above problems are in urgent need of solution, so it is necessary to provide an insulating varnish resin production system to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an insulating varnish resin production system capable of reducing the loss of raw materials and solvents and improving the yield.

[0005] The technical solution adopted by the utility model to solve its technical problems is: to provide an insulating paint resin production system, including a reactor, a distillation tower arranged at the top of the reactor, a condenser and a liquid receiving tank, the reactor is provided with a sensor, the distillation tower, the condenser and the liquid receiving tank are connected by pipelines, the pipelines include pipeline 1, pipeline 2 and pipeline 6, the pipeline 6 is provided with a pneumatic three-way valve, the pneumatic three-way valve is controlled by the sensor, as the reaction temperature continues to rise, the raw materials and the solvent in the reactor react to generate insulating paint resin, the generated process water and methanol are separated by the distillation tower, and transported to the condenser by the pipeline 1, the process water and methanol are liquefied by the condenser and enter the liquid receiving tank through the pipeline 2 for storage, when the reaction temperature in the reactor exceeds the boiling point of the raw materials and the solvent, the sensor controls the pneumatic three-way valve to open the pipeline 6, at which time all the condensed substances are directly refluxed back to the reactor.

[0006] Furthermore, the reactor and the distillation tower are connected via a short pipe, a stirrer is provided in the reactor, an insulation chamber is provided at the bottom of the reactor, heat transfer oil is introduced into the insulation chamber, and the heat transfer oil enters the insulation chamber through a heat transfer oil pipeline.

[0007] Furthermore, sensors are provided on the heat transfer oil pipeline, in the reactor, and on the top of the distillation tower, and the sensors are used to control the switch of the pneumatic three-way valve.

[0008] Furthermore, the pipeline also includes pipeline three, pipeline four, and pipeline five.

[0009] Furthermore, one end of the pipeline is connected to the top of the distillation tower and the other end is connected to the left side of the condenser. A spring safety valve is provided at one end of the pipeline close to the distillation tower, and a spring safety valve is also provided at one end of the pipeline close to the left side of the condenser.

[0010] Furthermore, one end of pipeline 2 is connected to the bottom end of the right side of the condenser, and the other side is connected to the top of the liquid receiving tank. A pneumatic three-way valve is provided near the bottom end of the condenser on pipeline 2, and a sight glass is provided on pipeline 2. Flanges are provided at both ends of the sight glass. A ball valve is provided at one end of pipeline 2 close to the liquid receiving tank, and the sight glass is provided between the pneumatic three-way valve and the ball valve.

[0011] Furthermore, one end of the pipeline 3 is connected to the top right side of the condenser, and the other end is connected to the upper side of the liquid receiving tank.

[0012] Furthermore, one end of the pipeline four is connected to the top of the liquid receiving tank, and the other end is connected to the top of the distillation tower. A pneumatic valve is provided on the pipeline four, and ball valves are provided on both sides of the pneumatic valve.

[0013] Furthermore, one end of the pipeline five is connected to the bottom of the liquid receiving tank, and the other end is connected to the top of the distillation tower. A lifting pump is provided on the pipeline five, and ball valves are provided on both sides of the lifting pump.

[0014] Furthermore, one end of the pipeline six is ​​connected to the bottom end of the right side of the condenser, and the other end is connected to the top of the distillation tower. A ball valve is provided at one end of the pipeline six close to the distillation tower, and a pneumatic valve is also provided between the pneumatic three-way valve and the ball valve. The pipeline six overlaps with a part of the pipeline two, and the pneumatic three-way valve in the pipeline six and the pipeline two are the same.

[0015] The beneficial effects of the utility model are as follows: in an insulating varnish resin production system of the utility model, when the reaction temperature in the reactor exceeds the boiling point of the raw materials, the sensor controls the pneumatic three-way valve to open pipeline six, and at this time all the condensed solvents directly flow back into the reactor, thereby reducing the loss of raw materials and solvents and improving the yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 This is a process flow chart of the insulating varnish resin production system of the present utility model.

[0018] 1. Insulating varnish resin production system; 10. Reactor; 11. Mixer; 12. Insulation chamber; 121. Thermal oil; 20. Distillation tower; 21. Short pipe; 30. Condenser; 40. Receiving tank; 50. Pipeline; 51. Pipeline 1; 52. Pipeline 2; 53. Pipeline 3; 54. Pipeline 4; 55. Pipeline 5; 551. Lifting pump; 56. Pipeline 6; 57. Thermal oil pipeline; 60. Valve; 61. Pneumatic valve; 62. Pneumatic three-way valve; 63. Ball valve; 64. Spring safety valve; 65. Flange; 66. Sight glass; 70. Sensor. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the present invention in an illustrative manner, and therefore only shows the structures related to the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Please refer to Figure 1 The utility model provides an insulating varnish resin production system 1, comprising a reactor 10, a distillation tower 20 arranged at the top of the reactor 10, a condenser 30 and a liquid receiving tank 40, and the reactor 10 and the distillation tower 20 are connected by a short pipe 21.

[0021] A stirrer 11 is provided in the reactor 10, which is used to stir the reaction raw materials and the solvent to accelerate the reaction rate. An insulation chamber 12 is provided at the bottom of the reactor 10, and heat transfer oil 121 is introduced into the insulation chamber 12. The heat transfer oil 121 is introduced into the insulation chamber 12 through a heat transfer oil pipeline 57. A pneumatic valve 61 is provided on the heat transfer oil pipeline 57. The pneumatic valve 61 is used to control the heat transfer oil 121 to flow into the insulation chamber 12. The heat transfer oil 121 in the insulation chamber 12 is used to heat and keep the reactor 10 warm.

[0022] The distillation tower 20 is used to separate the substances vaporized in the reactor 10 .

[0023] The condenser 30 is used to liquefy the substances vaporized in the distillation tower 20 .

[0024] The liquid receiving tank 40 is used to store the liquefied substances in the condenser 30 .

[0025] Sensors 70 are provided on the top of the heat transfer oil pipeline 57, the reactor 10, and the distillation tower 20. The sensors 70 are controlled by temperature sensing.

[0026] The distillation tower 20, the condenser 30 and the liquid receiving tank 40 are connected by a pipeline 50, and the pipeline 50 is used for transporting and refluxing the reaction raw materials and the reaction solvent.

[0027] The pipeline 50 includes pipeline one 51 , pipeline two 52 , pipeline three 53 , pipeline four 54 , pipeline five 55 and pipeline six 56 .

[0028] One end of pipeline 151 is connected to the top of the distillation tower 20, and the other end is connected to the left side of the condenser 30. A spring safety valve 64 is provided at the end of pipeline 151 close to the distillation tower 20, and a spring safety valve 64 is also provided at the end of pipeline 151 close to the left side of the condenser 30. The substance vaporized by the distillation tower 20 enters the condenser 30 through pipeline 151.

[0029] One end of pipeline 2 52 is connected to the bottom end of the right side of the condenser 30, and the other side is connected to the top of the liquid receiving tank 40. A pneumatic three-way valve 62 is provided on pipeline 2 52 near the bottom end of the right side of the condenser 30. A sight glass 66 is also provided on pipeline 2 52. Flanges 65 are provided at both ends of the sight glass 66. A ball valve 63 is provided on one end of pipeline 2 52 near the liquid receiving tank. The sight glass 66 is provided between the pneumatic three-way valve 62 and the ball valve 63. The sight glass 66 monitors and detects the state of the solvent transmitted from the condenser 30 to the liquid receiving tank 40. The substance vaporized by the distillation tower 20 is condensed into liquid substance through the condenser 30. The liquid substance is transported to the liquid receiving tank 40 through pipeline 2 52 via the pneumatic three-way valve 62.

[0030] One end of pipeline three 53 is connected to the top right side of the condenser 30, and the other end is connected to the upper side of the liquid receiving tank 40, which is used to connect the condenser 30 and the liquid receiving tank 40 and play a protective role.

[0031] One end of pipeline four 54 is connected to the top of the liquid receiving tank 40, and the other end is connected to the end of the distillation tower 20. A pneumatic valve 61 is provided on pipeline four 54, and ball valves 63 are provided on both sides of the pneumatic valve 61. When the liquid receiving tank 40 is full, the pneumatic valve 61 is closed to prevent short-circuiting in the early reaction of the distillation tower 20. After the solvent in the liquid receiving tank 40 is fully collected, the solvent flows back to the reactor 10 through pipeline four 54.

[0032] One end of pipeline five 55 is connected to the bottom end of the liquid receiving tank 40, and the other end is connected to the top of the distillation tower 20. A lifting pump 551 is provided on pipeline five 55, and ball valves 63 are provided on both sides of the lifting pump 551. When the temperature inside the reactor 10 is higher than the process setting requirement, the lifting pump 551 lifts the bottom material and transports it to the top of the distillation tower 20 through pipeline five 55, and then sprays it into the reactor 10 to cool the inside of the reactor 10.

[0033] One end of pipeline six 56 is connected to the bottom end of the right side of the condenser 30, and the other end is connected to the top of the distillation tower 20. A ball valve 63 is provided at the end of pipeline six close to the distillation tower 20, and a pneumatic valve 61 is also provided between the pneumatic three-way valve 62 and the ball valve 63. Pipeline six 56 overlaps with a portion of pipeline two 52, and the pneumatic three-way valve 62 in pipeline six 56 and pipeline two 52 is the same.

[0034] When the internal temperature of the reactor 10 exceeds the boiling point of the raw materials, the sensor 70 sends a signal to the three-way valve, closing the pipeline 2 52 and opening the pipeline 6 56 . At this time, all the materials are directly returned to the distillation tower 20 .

[0035] The working process of the insulating varnish resin production system 1 of the present invention will be described below with reference to the accompanying drawings:

[0036] Insulating varnish resin is prepared in reactor 10 using ethylene glycol, glycerol, and diethylene glycol as raw materials and cresol and toluene as solvents. Heat transfer oil 121 is introduced into insulation chamber 12 and heated. An alkyd-type reaction occurs in reactor 10, and a partial imidization modification reaction also occurs. A distillation tower 20 continuously separates process water and methanol produced by the reaction as effluent from the reaction system, allowing the reaction to proceed in the forward direction.

[0037] In the early stages of synthesis, the reaction temperature is low and the degree of polymerization in reactor 10 is low, producing a large amount of process water and methanol. These process water and methanol are then refluxed back into reactor 10 via distillation tower 20. In the later stages of synthesis, the degree of polymerization in reactor 10 continues to increase, raising the temperature, gradually approaching or exceeding the boiling points of ethylene glycol, cresol, and toluene. The raw materials and solvent in the effluent enter distillation tower 20 and are transported via pipeline 1 51 to condenser 30. After condensation in condenser 30, they are transported via pipeline 2 52 to liquid receiving tank 40 for storage. When liquid receiving tank 40 overflows, the raw materials and solvent are transported back to the top of distillation tower 20 via pipeline 4 54. If the temperature inside reactor 10 is too high, pipeline 5 55 is opened, spraying the solvent from the bottom onto the top of distillation tower 20 to cool the interior of reactor 10.

[0038] Therefore, the insulating varnish resin production system 1 of the present invention has at least the following beneficial effects:

[0039] When the reaction temperature exceeds the boiling point of the raw materials and solvent, pipeline six 56 can directly reflux and transport the raw materials and solvent to the reactor 10, reducing raw material loss and improving yield.

[0040] When the reaction temperature exceeds the boiling point of the raw materials and the solvent, it is not necessary to transport all the liquid outflow to the liquid receiving tank 40, which reduces energy loss, stabilizes the temperature control, improves the reflux efficiency, and makes the reflux effect more stable.

[0041] The sensor 70 can automatically control the opening and closing of the pneumatic three-way valve 62, reducing manual operation.

[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections. They can refer to mechanical connections, direct connections, or indirect connections through an intermediary. They can refer to internal communication between two components or interactions between two components. A person skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. It should be understood that the terms "length," "width," "upper," "lower," "front and back," "left and right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. The above description is based on the preferred embodiments of the present invention. Based on the above description, relevant personnel are fully aware of the possibility of making various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An insulating varnish resin production system, characterized by: The invention comprises a reactor (10), a distillation tower (20) arranged at the top of the reactor (10), a condenser (30) and a liquid receiving tank (40), wherein the reactor (10) is provided with a sensor (70), the distillation tower (20), the condenser (30) and the liquid receiving tank (40) are connected by a pipeline (50), the pipeline (50) comprises a pipeline 1 (51), a pipeline 2 (52) and a pipeline 6 (56), and the pipeline 6 (56) is provided with a pneumatic three-way valve (62), the pneumatic three-way valve (62) is controlled by the sensor (70), and as the reaction temperature continues to rise, the pneumatic three-way valve (62) is controlled by the sensor (70). The raw materials and the solvent in the reactor (10) react to generate insulating paint resin, and the generated process water and methanol are separated by the distillation tower (20) and transported to the condenser (30) through the pipeline one (51). The process water and methanol are liquefied by the condenser (30) and then enter the liquid receiving tank (40) through the pipeline two (52) for storage. When the reaction temperature in the reactor (10) exceeds the boiling point of the raw materials and the solvent, the sensor (70) controls the pneumatic three-way valve (62) to open the pipeline six (56). At this time, all the condensed substances are directly refluxed back to the reactor (10).

2. The insulating varnish resin production system according to claim 1, characterized in that: The reactor (10) and the distillation tower (20) are connected via a short pipe (21). A stirrer (11) is provided in the reactor (10). A heat preservation chamber (12) is provided at the bottom of the reactor (10). Heat transfer oil (121) is introduced into the heat preservation chamber (12). The heat transfer oil (121) enters the heat preservation chamber (12) via a heat transfer oil pipeline (57).

3. The insulating varnish resin production system according to claim 2, characterized in that: A sensor (70) is provided on the heat transfer oil pipeline (57), in the reactor (10), and on the top of the distillation tower (20). The sensor (70) is used to control the switch of the pneumatic three-way valve (62).

4. The insulating varnish resin production system according to claim 3, characterized in that: The pipeline (50) further includes pipeline three (53), pipeline four (54), and pipeline five (55).

5. The insulating varnish resin production system according to claim 4, characterized in that: One end of the pipeline 1 (51) is connected to the top of the distillation tower (20), and the other end is connected to the left side of the condenser (30). A spring safety valve (64) is provided at one end of the pipeline 1 (51) close to the distillation tower (20), and a spring safety valve (64) is also provided at one end of the pipeline 1 (51) close to the left side of the condenser (30).

6. The insulating varnish resin production system according to claim 5, characterized in that: One end of the second pipeline (52) is connected to the bottom end of the right side of the condenser (30), and the other side is connected to the top end of the liquid receiving tank (40). The second pipeline (52) is provided with a pneumatic three-way valve (62) near the bottom end of the condenser (30). The second pipeline (52) is provided with a sight glass (66). Both ends of the sight glass (66) are provided with flanges (65). The second pipeline (52) is provided with a ball valve (63) near one end of the liquid receiving tank (40). The sight glass (66) is provided between the pneumatic three-way valve (62) and the ball valve (63).

7. The insulating varnish resin production system according to claim 6, characterized in that: One end of the pipeline three (53) is connected to the top right side of the condenser (30), and the other end is connected to the upper side of the liquid receiving tank (40).

8. The insulating varnish resin production system according to claim 7, characterized in that: One end of the pipeline four (54) is connected to the top of the liquid receiving tank (40), and the other end is connected to the top of the distillation tower (20). The pipeline four (54) is provided with a pneumatic valve (61), and ball valves (63) are provided on both sides of the pneumatic valve (61).

9. The insulating varnish resin production system according to claim 8, characterized in that: One end of the pipeline five (55) is connected to the bottom end of the liquid receiving tank (40), and the other end is connected to the top end of the distillation tower (20). The pipeline five (55) is provided with a lifting pump (551), and ball valves (63) are provided on both sides of the lifting pump (551).

10. The insulating varnish resin production system according to claim 9, characterized in that: One end of the pipeline six (56) is connected to the bottom end of the right side of the condenser (30), and the other end is connected to the top of the distillation tower (20). A ball valve (63) is provided at one end of the pipeline six (56) close to the distillation tower (20), and a pneumatic valve (61) is also provided between the pneumatic three-way valve (62) and the ball valve (63). The pipeline six (56) overlaps with a part of the pipeline two (52), and the pipeline six (56) and the pneumatic three-way valve (62) in the pipeline two (52) are the same.

Images