Novel heat exchange device for unsaturated polyester resin production

Abstract

The utility model discloses a novel heat exchange device for unsaturated polyester resin production, which comprises a reaction kettle, the upper end of the reaction kettle is fixedly provided with a feed pipe, the lower end of the reaction kettle is fixedly provided with a discharge pipe, and the left side and the right side of the upper side of the outer surface of the reaction kettle are respectively and fixedly communicated with a heat exchange pipe and an exhaust pipe. A motor is fixedly mounted at the upper end of the reaction kettle, a plurality of stirring rods are fixedly mounted on an output shaft of the motor, and an air cylinder is fixedly mounted on the right side of the upper end of the reaction kettle. According to the technical scheme, the novel heat exchange device for unsaturated polyester resin production is provided. Three-dimensional stirring is realized through the synergistic effect of the stirring rods and the annular plates, flowing dead angles are eliminated, all materials are ensured to be in full contact with a heat exchange medium, the uniformity of the materials is improved, the materials in the reaction kettle can be ensured to reach a proper reaction temperature, and the curing degree and the crosslinking density of resin are improved, so that the product quality is improved.

Description

Technical Field

[0001] This utility model relates to an unsaturated polyester resin production equipment, and more specifically, to a novel heat exchange device for unsaturated polyester resin production. Background Technology

[0002] The new heat exchange device for unsaturated polyester resin production is a piece of equipment that integrates advanced heat exchange technology and process requirements. Through an efficient heat exchange process, it controls the temperature during the production of unsaturated polyester resin, ensuring smooth reaction and optimizing product quality.

[0003] When using heat exchange equipment in the production of unsaturated polyester resin, uneven material flow within the reactor can prevent some material from fully contacting the heating steam or cooling water. The polymerization reaction of unsaturated polyester resin requires specific temperature conditions. If some material fails to reach the reaction temperature due to uneven flow, the polymerization reaction will be incomplete, affecting the degree of resin curing and crosslinking density, and ultimately reducing product quality.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of heat exchange device for the production of unsaturated polyester resin, so as to solve the temperature control problem caused by uneven material flow, thereby improving product quality.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A novel heat exchange device for the production of unsaturated polyester resin includes a reaction vessel. A feed pipe is fixedly installed at the upper end of the reaction vessel, and a discharge pipe is fixedly installed at the lower end of the reaction vessel. A heat exchange pipe and an exhaust pipe are fixedly connected to the left and right sides of the upper surface of the reaction vessel, respectively. A motor is fixedly installed at the upper end of the reaction vessel, and several stirring rods are fixedly installed on the output shaft of the motor. A cylinder is fixedly installed on the upper right side of the reaction vessel. An annular plate is movably arranged in the inner cavity of the reaction vessel. The annular plate is fixedly connected to the output end of the cylinder. The annular plate is in contact with the inner wall of the reaction vessel. The stirring rods are movably inserted into the annular plate, and the diameter of the stirring rods is smaller than the inner diameter of the annular plate. A flow control valve is provided on the outer surface of the heat exchange pipe.

[0007] The present invention is further configured such that a temperature monitoring panel is provided on the front side of the reactor.

[0008] The present invention is further configured such that a sealed viewing window is provided on the front side of the outer surface of the reaction vessel.

[0009] The present invention is further configured such that four support legs are fixedly installed on the outer surface of the reactor.

[0010] The present invention is further configured such that a limiting rod is fixedly installed on the upper left side of the annular plate, and the limiting rod is movably inserted through the top of the reactor.

[0011] In summary, this utility model has the following beneficial effects:

[0012] 1. Three-dimensional stirring is achieved through the synergistic action of the stirring rod and the annular plate, eliminating dead zones in the flow and ensuring that all materials are in full contact with the heat exchange medium. This improves the uniformity of the materials and ensures that all materials in the reactor reach the appropriate reaction temperature. Due to the optimization of material uniformity and temperature control, the polymerization reaction is more complete, improving the degree of resin curing and crosslinking density, thereby improving product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the annular plate and stirring rod of this utility model.

[0015] In the diagram: 1. Reactor; 2. Feed pipe; 3. Discharge pipe; 4. Heat exchanger pipe; 5. Exhaust pipe; 6. Motor; 7. Stirring rod; 8. Cylinder; 9. Annular plate; 10. Temperature monitoring panel; 11. Sealed viewing window; 12. Support leg; 13. Limiting rod; 14. Flow control valve. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] A novel heat exchange device for the production of unsaturated polyester resin, such as Figures 1 to 2 As shown, the reactor includes a reactor 1. A feed pipe 2 is fixedly installed at the upper end of the reactor 1, and a discharge pipe 3 is fixedly installed at the lower end of the reactor 1. Heat exchange pipes 4 and exhaust pipes 5 are fixedly connected to the upper left and right sides of the outer surface of the reactor 1, respectively. A motor 6 is fixedly installed at the upper end of the reactor 1. Several stirring rods 7 are fixedly installed on the output shaft of the motor 6. A cylinder 8 is fixedly installed on the upper right side of the reactor 1. An annular plate 9 is movably arranged in the inner cavity of the reactor 1. The annular plate 9 is fixedly connected to the output end of the cylinder 8 and contacts the inner wall of the reactor 1. The stirring rods 7 are movably inserted into the annular plate 9, and the diameter of the stirring rods 7 is smaller than the inner diameter of the annular plate 9. A flow control valve 14 is provided on the outer surface of the heat exchange pipes 4. The heat exchange pipes 4 are used to exchange heat with heating steam or cooling water to control the temperature inside the reactor 1. The exhaust pipe 5 is used to discharge the gas generated during the reaction. The stirring rods 7 are used to stir the material inside the reactor 1 to improve the uniformity of the material.

[0021] like Figure 1 As shown, a temperature monitoring panel 10 is provided on the front side of the reactor 1. The flow control valve 14 is linked with the temperature monitoring panel 10 to realize dynamic adjustment of the medium flow rate, reduce the temperature difference fluctuation range to ±1℃, and significantly improve the reaction stability.

[0022] like Figure 1 As shown, a sealed viewing window 11 is provided on the front side of the outer surface of the reactor 1 to facilitate observation of the reaction inside the reactor 1.

[0023] Four support legs 12 are fixedly installed on the outer surface of the reactor 1, which provide support and stability to the reactor 1.

[0024] A limiting rod 13 is fixedly installed on the upper left side of the annular plate 9. The limiting rod 13 is movably inserted through the top of the reactor 1 to limit the range of movement of the annular plate 9 and prevent the position of the annular plate 9 from shifting.

[0025] Working Principle: In operation, unsaturated polyester resin raw material is first added to the reactor 1 through the feed pipe 2. Then, the motor 6 is started, driving the stirring rod 7 to rotate and stir the material. Simultaneously, according to production needs, the temperature monitoring panel 10 collects real-time temperature data inside the reactor. The flow rate of heating steam or cooling water in the heat exchange tube 4 is adjusted through the flow control valve 14 to control the temperature inside the reactor 1. The cylinder 8 drives the annular plate 9 to move up and down periodically, changing the material flow direction, breaking the fixed path of traditional stirring, and eliminating local stagnation. During the lifting and lowering process of the annular plate 9, its edge contacts the reactor wall, forming... The dynamic gap guides the uniform distribution of the heat exchange medium, avoiding local overheating or undercooling. The fully mixed and uniformly heated material is discharged through the discharge pipe 3, and the exhaust pipe 5 promptly discharges the reaction by-product gas, maintaining the pressure balance inside the reactor. The synergistic action of the stirring rod 7 and the annular plate 9 achieves three-dimensional stirring, eliminating dead zones and ensuring that all materials are in full contact with the heat exchange medium, thus improving the uniformity of the material and ensuring that the materials in the reactor can reach the appropriate reaction temperature. Due to the optimization of material uniformity and temperature control, the polymerization reaction is more complete, improving the degree of resin curing and crosslinking density, thereby improving product quality.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A novel heat exchange device for producing unsaturated polyester resin, comprising a reaction kettle (1), a feed pipe (2) is fixedly installed at the upper end of the reaction kettle (1), a discharge pipe (3) is fixedly installed at the lower end of the reaction kettle (1), a heat exchange pipe (4) and an exhaust pipe (5) are respectively fixedly communicated on the outer surface of the left and right sides of the upper side of the reaction kettle (1), characterized in that: The upper end of the reaction kettle (1) is fixedly installed with a motor (6), the output shaft of the motor (6) is fixedly installed with a plurality of stirring rods (7), the upper end of the right side of the reaction kettle (1) is fixedly installed with a pneumatic cylinder (8), the inner cavity of the reaction kettle (1) is movably provided with an annular plate (9), the annular plate (9) is fixedly connected with the output end of the pneumatic cylinder (8), the annular plate (9) is in contact with the inner wall of the reaction kettle (1), the stirring rod (7) is movably inserted in the annular plate (9) and the diameter of the stirring rod (7) is smaller than the inner diameter of the annular plate (9), and the outer surface of the heat exchange pipe (4) is provided with a flow control valve (14).

2. The heat exchange device for producing a novel unsaturated polyester resin according to claim 1, characterized by: The front side of the reaction kettle (1) is provided with a temperature monitoring panel (10).

3. The heat exchange device for producing a novel unsaturated polyester resin according to claim 1, characterized by: The front side of the outer surface of the reaction kettle (1) is provided with a sealed visual window (11).

4. The heat exchange device for producing a novel unsaturated polyester resin according to claim 1, characterized by: The outer surface of the reaction kettle (1) is fixedly installed with four supporting legs (12).

5. The heat exchange device for producing a novel unsaturated polyester resin according to claim 1, characterized by: The upper end of the left side of the annular plate (9) is fixedly installed with a limiting rod (13), and the limiting rod (13) is movably inserted in the top of the reaction kettle (1).

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