Circulating condensing device of synthesis kettle for producing polyamide resin

Abstract

The utility model relates to the technical field of compound preparation equipment, in particular to a circulating condensing device of a synthesis kettle for producing polyamide resin, which comprises a kettle body, a condensing pipe is spirally arranged on the outer surface of the kettle body, two ends of the condensing pipe are respectively connected with a water pump and a storage box through connecting pipes, and the water pump is connected with a working box. A cooling box is arranged between the storage box and the working box, a condenser is arranged in the cooling box, heated cooling liquid enters the storage box, when the cooling liquid in the working box is insufficient, the cooling liquid in the cooling box enters the working box to be pumped out by a water pump, and the cooling liquid in the storage box enters the cooling box to be cooled through the condenser. The heated cooling liquid flows into the storage box, the cooling box cools the cooling liquid in the cooling box, and the cooled cooling liquid is stored in the working box and flows to the condensation pipe under the action of the water pump; condensate is treated in a partitioned mode, cooling liquid for cooling can be continuously provided for the condensation pipe, and therefore the condensation effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of compound preparation equipment, in particular to a circulating condensing device for producing a polyamide resin synthesis kettle. Background Art

[0002] Polyamide resin is a polycondensation polymer compound with a CONH structure in the molecule, which is usually obtained by polycondensation of dibasic acid and diamine. Polyamide resin has good chemical resistance and can resist acid, alkali, vegetable oil, mineral oil, etc. Since it has polar groups such as amino, carbonyl, and amide in its molecules, it has good bonding properties for wood, pottery, paper, cloth, brass, aluminum, phenolic resin, polyester resin, polyethylene and other plastics.

[0003] The existing polyamide resin synthesis kettle condensing device cools down the synthesis kettle by exchanging heat between the coolant and the synthesis kettle. The coolant passing through the synthesis kettle flows back into the water tank and circulates under the action of the water pump to cool down the synthesis kettle. However, the condenser in the water tank needs time to cool down the heated coolant. When the heated coolant is mixed with the coolant in the water tank, the overall temperature of the coolant will rise. As the circulation continues, the temperature of the coolant continues to rise, resulting in poor cooling effect on the synthesis kettle. Utility Model Content

[0004] The utility model aims to provide a circulating condensing device for producing a polyamide resin synthesis kettle, so as to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circulating condensation device for producing a polyamide resin synthesis kettle comprises a kettle body, the outer surface of which is spirally provided with a condenser pipe, both ends of which are respectively connected to a water pump and a storage box through connecting pipes, the water pump is connected to a working box, a cooling box is provided between the storage box and the working box, a condenser is provided in the cooling box, heated coolant enters the storage box, when the coolant in the working box is insufficient, the coolant in the cooling box enters the working box to be pumped out by the water pump, and the coolant in the storage box enters the cooling box to be cooled by the condenser.

[0007] Furthermore, a first solenoid valve is provided between the cooling box and the storage box, and a second solenoid valve is provided between the cooling box and the working box.

[0008] Furthermore, a first liquid level sensor is provided in the working box, and the first liquid level sensor is higher than the water inlet of the water pump.

[0009] Furthermore, a second liquid level sensor is provided in the cooling box, and the second liquid level sensor is arranged at the bottom of the cooling box.

[0010] Furthermore, the connecting pipe is made of rubber material.

[0011] Furthermore, the condenser tube is tightly wrapped around the outer surface of the kettle body.

[0012] In the above technical scheme, the utility model provides a circulating condensing device for producing a polyamide resin synthesis kettle, which has the following beneficial effects:

[0013] Through the storage box, cooling box and working box, the heated coolant flows into the storage box, the cooling box cools down the coolant inside it, and the working box stores the cooled coolant and flows to the condenser under the action of the water pump; by processing the condensate in partitions, the condenser can be continuously provided with cooled coolant to ensure the condensation effect.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0018] Figure 2 A schematic cross-sectional view of an embodiment of the present invention.

[0019] Description of reference numerals:

[0020] 1. Kettle body; 2. Condenser; 21. Connecting pipe; 3. Storage box; 4. Cooling box; 41. Second liquid level sensor; 42. Condenser; 5. Working box; 51. Water pump; 52. First liquid level sensor; 6. First solenoid valve; 7. Second solenoid valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] See also Figure 1-2 A circulating condensation device for producing a polyamide resin synthesis kettle comprises a kettle body 1, a condenser 2 is spirally arranged on the outer surface of the kettle body 1, both ends of the condenser 2 are respectively connected to a water pump 51 and a storage box 3 through a connecting pipe 21, the water pump 51 is connected to a working box 5, a cooling box 4 is arranged between the storage box 3 and the working box 5, a condenser 42 is arranged in the cooling box 4, the heated coolant enters the storage box 3, when the coolant in the working box 5 is insufficient, the coolant in the cooling box 4 enters the working box 5 to be extracted by the water pump 51, and the coolant in the storage box 3 enters the cooling box 4 to be cooled by the condenser 42.

[0023] Through the storage box, cooling box 4 and working box 5, the heated coolant flows into the storage box, the cooling box 4 cools down the coolant therein, the working box 5 stores the cooled coolant and flows to the condenser 2 under the action of the water pump 51; by processing the condensate in partitions, the condenser 2 can be continuously provided with cooled coolant to ensure the condensation effect.

[0024] Furthermore, a first solenoid valve 6 is provided between the cooling box 4 and the storage box 3, and a second solenoid valve 7 is provided between the cooling box 4 and the working box 5. A first liquid level sensor 52 is provided in the working box 5, and the first liquid level sensor 52 is higher than the water inlet of the water pump 51. A second liquid level sensor 41 is provided in the cooling box 4, and the second liquid level sensor 41 is provided at the bottom of the cooling box 4. The first liquid level sensor 52, the second liquid level sensor 41, the first solenoid valve 6 and the second solenoid valve 7 are all electrically connected to the PLC control board.

[0025] When the coolant level in the working box 5 drops to the first liquid level sensor 52, a signal is sent to the PLC control board to open the first solenoid valve 6, and the coolant in the cooling box 4 enters the working box 5; when the coolant level in the cooling box 4 drops to the second liquid level sensor 41, a signal is sent to the PLC to close the first solenoid valve 6 first, and then open the second solenoid valve 7, so that the coolant in the storage box 3 enters the cooling box 4 for cooling.

[0026] A third liquid level sensor may be provided in the cooling box 4. When the coolant level reaches the third liquid level sensor, the second solenoid valve 7 is closed. A timing may also be set through the PLC to automatically close the second solenoid valve 7 to store the heated coolant.

[0027] Furthermore, the connecting pipe 21 is made of rubber material.

[0028] Furthermore, the condenser tube 2 is tightly wrapped around the outer surface of the kettle body 1, thereby improving the cooling effect of the kettle body 1.

[0029] Working principle:

[0030] When the coolant level in the working box 5 drops to the first liquid level sensor 52, a signal is sent to the PLC control board to open the first solenoid valve 6, and the coolant in the cooling box 4 enters the working box 5; when the coolant level in the cooling box 4 drops to the second liquid level sensor 41, a signal is sent to the PLC to close the first solenoid valve 6 first, and then open the second solenoid valve 7, so that the coolant in the storage box 3 enters the cooling box 4 for cooling.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A circulating condensation device for producing a polyamide resin synthesis kettle, comprising a kettle body (1), characterized in that: A condenser (2) is spirally arranged on the outer surface of the kettle body (1), and the two ends of the condenser (2) are respectively connected to a water pump (51) and a storage box (3) through a connecting pipe (21), the water pump (51) is connected to a working box (5), a cooling box (4) is arranged between the storage box (3) and the working box (5), a condenser (42) is arranged in the cooling box (4), and the heated coolant enters the storage box (3). When the coolant in the working box (5) is insufficient, the coolant in the cooling box (4) enters the working box (5) to be drawn out by the water pump (51), and the coolant in the storage box (3) enters the cooling box (4) to be cooled by the condenser (42).

2. A circulating condensing device for producing a polyamide resin synthesis kettle according to claim 1, characterized in that: A first electromagnetic valve (6) is provided between the cooling box (4) and the storage box (3), and a second electromagnetic valve (7) is provided between the cooling box (4) and the working box (5).

3. A circulating condensing device for producing a polyamide resin synthesis kettle according to claim 2, characterized in that: A first liquid level sensor (52) is provided in the working box (5), and the first liquid level sensor (52) is higher than the water inlet of the water pump (51).

4. A circulating condensing device for producing a polyamide resin synthesis kettle according to claim 2, characterized in that: A second liquid level sensor (41) is provided in the cooling box (4), and the second liquid level sensor (41) is arranged at the bottom of the cooling box (4).

5. A circulating condensing device for producing a polyamide resin synthesis kettle according to claim 1, characterized in that: The connecting pipe (21) is made of rubber material.

6. A circulating condensing device for producing a polyamide resin synthesis kettle according to claim 1, characterized in that: The condenser tube (2) is tightly wrapped around the outer surface of the kettle body (1).

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