Flow divider for producing polyester resin

Abstract

The utility model discloses a diverter for producing polyester resin, which relates to the technical field of polyester resin production, and comprises a diverting cylinder, a diverting pipeline is arranged in the diverting cylinder, the diverting pipeline is provided with an inlet and two outlets, and electromagnetic valves are arranged at the two outlets of the diverting pipeline. Two outlets are formed in the inlet, collecting hoppers are arranged below the two outlets and are respectively a backflow hopper and a discharge hopper, the bottom of the backflow hopper is fixedly connected with a backflow pipeline, the bottom of the discharge hopper is fixedly connected with a discharge pipeline, a temperature sensor is arranged at the inlet, and the temperature sensor is connected with a control mainboard. And the control main board is electrically connected with the electromagnetic valve. According to the utility model, by arranging the shunting pipeline, distilled alcohol-containing esterified water can flow into the reaction kettle through the reflux hopper and the reflux pipeline for utilization, so that the uncontrollable alcohol leakage phenomenon is avoided, and the device is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester resin production, in particular to a flow divider used for producing polyester resin. Background Art

[0002] In the traditional polyester resin processing, the distilled alcohol esterification water is directly discharged, resulting in uncontrollable alcohol discharge, which has the disadvantages of wasting raw materials and being environmentally unfriendly.

[0003] In the Chinese patent publication number CN103263881A, a diverter for producing polyester resin is proposed. Compared with the prior art, the diverter for producing polyester resin uses the diverter to rotate the distilled alcohol esterified water back into the reactor through a rotating shaft for utilization, which not only avoids the uncontrollable alcohol leakage phenomenon, saves raw materials and is environmentally friendly; but also can reduce the top temperature of the reactor and accurately control the top temperature of the reactor. However, the diverter for producing polyester resin still has the disadvantage of a relatively complex structure. Therefore, the utility model hereby proposes a diverter for producing polyester resin. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a diverter for producing polyester resin.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diverter for producing polyester resin, comprising a diverter cylinder, a diverter pipe is arranged inside the diverter cylinder, the diverter pipe has an inlet and two outlets, solenoid valves are arranged at the two outlets of the diverter pipe, and collecting hoppers are arranged below the two outlets, the two collecting hoppers are respectively a reflux hopper and a discharge hopper, the bottom of the reflux hopper is fixedly connected with a reflux pipe, and the diverter pipe is arranged, so that the diverted alcohol esterified water can flow into the reactor through the reflux hopper and the reflux pipe for utilization, thereby avoiding the uncontrollable alcohol leakage phenomenon, saving energy and being environmentally friendly, and the bottom of the discharge hopper is fixedly connected with a discharge pipe.

[0008] Preferably, a temperature sensor is provided at the inlet, and the temperature sensor is connected to the control main board, and the control main board is electrically connected to the solenoid valve. The temperature sensor can detect the temperature of the distilled water. When the temperature is greater than 100°C, the solenoid valve above the reflux bucket is controlled to open, and the solenoid valve above the discharge bucket is closed, so that the water containing alcohol can flow back into the reactor through the reflux pipe. When the temperature is less than 100°C, the solenoid valve above the reflux bucket is controlled to close, and the solenoid valve above the discharge bucket is opened, so that the distilled water can be discharged. The above structure is simple in structure, not prone to failure, low in cost and strong in practicality.

[0009] Preferably, a detachable cylinder cover is provided on the top of the diverter cylinder, the cylinder cover is threadedly connected to the diverter cylinder, and a mounting hole matching the inlet of the diverter pipe is opened inside the cylinder cover.

[0010] Preferably, the bottom of the diversion cylinder is provided with a cylinder bottom, and a return pipe opening and a discharge pipe opening are opened on one side of the cylinder bottom.

[0011] Preferably, the return pipe is installed in the return pipe opening.

[0012] Preferably, the discharge pipe is installed in the discharge pipe opening.

[0013] Preferably, a heat-insulating layer is provided at the inlet of the diversion pipe, and the heat-insulating layer is wrapped around the outside of the pipe at the inlet.

[0014] Beneficial effects:

[0015] Compared with the prior art, the flow divider for producing polyester resin has the following beneficial effects:

[0016] 1. The utility model provides a diversion pipeline, so that the distilled alcohol esterified water can flow into the reaction kettle through the reflux bucket and the reflux pipeline for utilization, thereby avoiding the uncontrollable alcohol leakage phenomenon, and is energy-saving and environmentally friendly.

[0017] 2. The utility model can detect the temperature of the distilled water through a temperature sensor. When the temperature is greater than 100°C, the solenoid valve above the reflux bucket is controlled to open, and the solenoid valve above the discharge bucket is closed, so that the water containing alcohol can flow back into the reactor through the reflux pipe. When the temperature is less than 100°C, the solenoid valve above the reflux bucket is controlled to close, and the solenoid valve above the discharge bucket is opened, so that the distilled water can be discharged. The above structure is simple in structure, not prone to failure, low in cost and strong in practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0022] In the figure:

[0023] 1. Diverter cylinder; 2. Diverter pipe; 201. Inlet; 202. Outlet; 203. Solenoid valve; 3. Collecting hopper; 31. Reflux hopper; 32. Discharge hopper; 4. Reflux pipe; 5. Discharge pipe; 6. Temperature sensor; 7. Cylinder cover; 701. Mounting hole; 8. Cylinder bottom; 801. Reflux pipe opening; 802. Discharge pipe opening; 9. Insulation layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 to Figure 4 As shown, the utility model provides a technical solution: a diverter for producing polyester resin, comprising a diverter tube 1, a diverter pipe 2 is arranged inside the diverter tube 1, an insulation layer 9 is arranged at the inlet 201 of the diverter pipe 2, the insulation layer 9 is wrapped around the outside of the pipe at the inlet 201, the diverter pipe 2 has an inlet 201 and two outlets 202, solenoid valves 203 are arranged at the two outlets 202 of the diverter pipe 2, and collecting hoppers 3 are arranged below the two outlets 202, the two collecting hoppers 3 are respectively a reflux hopper 31 and a discharge hopper 32, the bottom of the reflux hopper 31 is fixedly connected with a reflux pipe 4, by setting the diverter pipe 2, the distilled alcohol esterified water can flow into the reactor through the reflux hopper 31 and the reflux pipe 4 for utilization, thereby avoiding the uncontrollable alcohol leakage phenomenon, saving energy and being environmentally friendly, and the bottom of the discharge hopper 32 is fixedly connected with a discharge pipe 5.

[0026] Please pay attention to Figure 3A temperature sensor 6 is provided at the inlet 201, and the temperature sensor 6 is connected to the control mainboard, and the control mainboard is electrically connected to the electromagnetic valve 203. The temperature sensor 6 can detect the temperature of the distilled water. When the temperature is greater than 100°C, the electromagnetic valve 203 above the reflux bucket 31 is controlled to be opened, and the electromagnetic valve 203 above the discharge bucket 32 ​​is closed, so that the water containing alcohol can flow back into the reactor through the reflux pipe 4. When the temperature is less than 100°C, the electromagnetic valve 203 above the reflux bucket 31 is controlled to be closed, and the electromagnetic valve 203 above the discharge bucket 32 ​​is opened, so that the distilled water can be discharged. The above structure is simple in structure, not prone to failure, low in cost and strong in practicality.

[0027] A detachable cylinder cover 7 is provided on the top of the diverter cylinder 1 in the present application. The cylinder cover 7 is threadedly connected to the diverter cylinder 1, and a mounting hole 701 is provided inside the cylinder cover 7 and is compatible with the inlet 201 of the diverter pipe 2. A cylinder bottom 8 is provided at the bottom of the diverter cylinder 1, and a return pipe port 801 and a discharge pipe port 802 are provided on one side of the cylinder bottom 8. The return pipe 4 is installed in the return pipe port 801, and the discharge pipe 5 is installed in the discharge pipe port 802.

[0028] Working principle: The temperature sensor 6 can detect the temperature of the distilled water. When it is greater than 100°C, the distilled water contains alcohol. The solenoid valve 203 above the reflux bucket 31 is controlled to be opened, and the solenoid valve 203 above the discharge bucket 32 ​​is closed, so that the water containing alcohol can flow back into the reactor through the reflux pipe 4. When it is less than 100°C, the solenoid valve 203 above the reflux bucket 31 is controlled to be closed, and the solenoid valve 203 above the discharge bucket 32 ​​is opened, so that the distilled water can be discharged. The above structure is simple in structure, not prone to failure, low in cost and strong in practicality.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow divider for producing polyester resin, comprising a flow divider cylinder (1), characterized in that: A diversion pipe (2) is arranged inside the diversion tube (1), and the diversion pipe (2) has an inlet (201) and two outlets (202). Solenoid valves (203) are arranged at the two outlets (202) of the diversion pipe (2). A collecting hopper (3) is arranged below the two outlets (202), and the two collecting hoppers (3) are respectively a return hopper (31) and a discharge hopper (32). The bottom of the return hopper (31) is fixedly connected to a return pipe (4), and the bottom of the discharge hopper (32) is fixedly connected to a discharge pipe (5).

2. A flow divider for producing polyester resin according to claim 1, characterized in that: A temperature sensor (6) is provided at the inlet (201), and the temperature sensor (6) is connected to a control main board, which is in turn electrically connected to the solenoid valve (203).

3. A flow divider for producing polyester resin according to claim 1, characterized in that: A detachable cylinder cover (7) is provided on the top of the diversion cylinder (1). The cylinder cover (7) is threadedly connected to the diversion cylinder (1), and a mounting hole (701) adapted to the inlet (201) of the diversion pipe (2) is provided inside the cylinder cover (7).

4. A flow divider for producing polyester resin according to claim 1, characterized in that: The bottom of the diversion cylinder (1) is provided with a cylinder bottom (8), and one side of the cylinder bottom (8) is provided with a return pipe opening (801) and a discharge pipe opening (802).

5. A flow divider for producing polyester resin according to claim 1, characterized in that: The return pipe (4) is installed in the return pipe opening (801).

6. A flow divider for producing polyester resin according to claim 1, characterized in that: The discharge pipe (5) is installed in the discharge pipe opening (802).

7. A flow divider for producing polyester resin according to claim 1, characterized in that: A heat-insulating layer (9) is provided at the inlet (201) of the diversion pipe (2), and the heat-insulating layer (9) wraps around the outside of the pipe at the inlet (201).

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