A temperature-controlled underwater polyester pelletizer water circulation device

Abstract

This utility model discloses a water circulation device for a temperature-controllable underwater polyester pelletizer. The device includes a circulation tank, a top cover, a metering addition component, an alkali regulator tank, a scale inhibitor storage tank, an acid regulator tank, and a cleaning component. The top cover is fixedly mounted on the top of the circulation tank. The metering addition component includes an addition pipe fixedly mounted on the top of the top cover, a metering pump fixedly connected to the addition pipe, and three second electric valves fixedly mounted on the addition pipe. The alkali regulator tank, scale inhibitor storage tank, and acid regulator tank are fixedly mounted on the top of the addition pipe. The cleaning component is fixedly mounted on the top cover. This utility model, by setting up the metering addition component, alkali regulator tank, scale inhibitor storage tank, and acid regulator tank, can meterly add alkali regulator, scale inhibitor, and acid regulator to inhibit scale growth. Simultaneously, the cleaning component is used to remove residual regulator or scale inhibitor from the metering addition component.

Description

Technical Field

[0001] This utility model relates to the technical field of water circulation devices for underwater polyester pelletizers, specifically a water circulation device for underwater polyester pelletizers with controllable temperature. Background Technology

[0002] The water circulation system of an underwater polyester pelletizer is a key system in modern plastics processing to ensure pelletizing quality and production efficiency. Through core functions such as multi-stage temperature control, circulation purification, intelligent monitoring, and dynamic adjustment, it achieves precise temperature control and efficient operation during the water circulation process. During operation, the water circulation system lowers the temperature of the circulating water via a heat exchanger. A temperature sensor and a cooling water butterfly valve form a closed-loop control system, automatically adjusting the cooling water flow rate to precisely control the circulating water temperature. The circulating water can be stored in a circulation tank. However, prolonged use inevitably leads to issues such as excessively high or low pH values, resulting in scaling. Furthermore, the continuous evaporation of the circulating water during cooling increases the salt concentration, exceeding the solubility of certain salts and causing precipitation, forming scale. These shortcomings necessitate a temperature-controllable water circulation system for underwater polyester pelletizers. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a water circulation device for an underwater polyester pelletizer with controllable temperature, comprising a circulation tank, a top cover, a quantitative addition component, an alkali regulator tank, a scale inhibitor storage tank, an acid regulator tank, a cleaning component, a conveying component, and a heat exchanger. A pH sensor and a water level flow meter are fixedly installed inside the circulation tank. The top cover is fixedly installed on the top of the circulation tank. The quantitative addition component includes an addition pipe fixedly installed on the top of the top cover, a metering pump fixedly connected to the addition pipe, and three second electric valves fixedly installed on the addition pipe. The alkali regulator tank is fixedly installed at the top of the addition pipe, the scale inhibitor storage tank is fixedly installed at the top of the addition pipe, the acid regulator tank is fixedly installed at the top of the addition pipe, the cleaning component is fixedly installed on the top cover, the conveying component is fixedly installed on the right side of the circulation tank, and the heat exchanger is fixedly installed on the right side of the conveying component.

[0005] Preferably, a drain pipe and a water inlet pipe are fixedly installed at the front and rear ends of the circulation tank, respectively, and a manual valve and a first electric valve are fixedly installed on the drain pipe and the water inlet pipe, respectively.

[0006] Preferably, the top of the top cover is fixedly provided with an inlet pipe and a support base.

[0007] Preferably, the cleaning assembly includes a pump fixedly mounted on the top of the top cover, a pumping pipe fixedly connected to the pump, and a third electric valve fixedly mounted on the pumping pipe.

[0008] Preferably, the conveying assembly includes a conveying pipe fixedly disposed on the right side of the circulation tank and a conveying pump fixedly connected to the conveying pipe.

[0009] Preferably, a circulating water discharge pipe, a cooling water inlet pipe, and a cooling water discharge pipe are fixedly installed on the left side of the heat exchanger, and a temperature sensor and a butterfly valve are fixedly installed on the circulating water discharge pipe and the cooling water inlet pipe, respectively.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: the alkali regulator tank, scale inhibitor storage tank, and acid regulator tank provided in this utility model can store alkali regulator, scale inhibitor, and acid regulator respectively; the pH sensor can detect the pH value of the circulating water in real time; the second electric valve can be automatically controlled to open; after opening, the metering pump can quantitatively deliver alkali regulator or acid regulator to regulate scale inhibition; the metering pump can also quantitatively deliver scale inhibitor to directly inhibit scale, achieve corrosion prevention, and extend service life; the third electric valve can be controlled to open; after opening, the pump can deliver circulating water through the pumping pipe to the addition pipe to clean the residual regulator and scale inhibitor in the addition pipe for use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This utility model Figure 1 Schematic diagram of the intermediate circulation tank;

[0013] Figure 3 This utility model Figure 1 A schematic diagram of the structure of the cleaning component;

[0014] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the heat exchanger.

[0015] Figure label:

[0016] 100. Circulation tank; 101. Sewage pipe; 102. Manual valve; 103. Water inlet pipe; 104. First electric valve; 105. pH sensor; 106. Water level and flow meter;

[0017] 200. Top cover; 201. Liquid inlet pipe; 202. Support base;

[0018] 300. Metering component; 301. Addition tube; 302. Second electric valve; 303. Metering pump;

[0019] 400. Alkali Conditioner Tank;

[0020] 500. Scale inhibitor storage tank;

[0021] 600. Acid regulator tank;

[0022] 700. Cleaning assembly; 701. Pumping pipe; 702. Pumping pump; 703. Third electric valve;

[0023] 800. Conveying assembly; 801. Conveying pipe; 802. Conveying pump;

[0024] 900, Heat exchanger; 901, Circulating water discharge pipe; 902, Temperature sensor; 903, Cooling water inlet pipe; 904, Butterfly valve; 905, Cooling water discharge pipe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a water circulation device for a temperature-controllable underwater polyester pelletizer.

[0027] Example 1:

[0028] Reference Figure 1-4 This is the first embodiment of the present invention. This embodiment provides a water circulation device for an underwater polyester pelletizer with controllable temperature, including a circulation tank 100, a top cover 200, a quantitative addition component 300, an alkali regulator tank 400, a scale inhibitor storage tank 500, an acid regulator tank 600, a cleaning component 700, a conveying component 800, and a heat exchanger 900.

[0029] Specifically, a pH sensor 105 and a water level and flow meter 106 are fixedly installed inside the circulation tank 100. A drain pipe 101 and a water inlet pipe 103 are fixedly installed at the front and rear ends of the circulation tank 100, respectively. A manual valve 102 and a first electric valve 104 are fixedly installed on the drain pipe 101 and the water inlet pipe 103, respectively. In use, the pH value of the water in the circulation tank 100 can be detected in real time by the pH sensor 105 so as to adjust the pH of the circulating water. The water level and flow meter 106 can detect the amount of circulating water in real time so as to replenish it. Then, the drain pipe 101 can be opened by rotating the manual valve 102 so as to drain the sewage through the drain pipe 101. The water inlet pipe 103 can be opened by controlling the first electric valve 104 so as to replenish the circulating water.

[0030] Specifically, the top cover 200 is fixedly installed on the top of the circulation tank 100. The top of the top cover 200 is fixedly provided with an inlet pipe 201 and a support base 202. In use, the top cover 200 can seal the circulation tank 100, while the inlet pipe 201 can recover circulating water. Then, the support base 202 can support the alkali regulator tank 400, the scale inhibitor storage tank 500, and the acid regulator tank 600.

[0031] Specifically, the metering component 300 includes an addition tube 301 fixedly installed at the top of the top cover 200, a metering pump 303 fixedly connected to the addition tube 301, and three second electric valves 302 fixedly installed on the addition tube 301. In use, the metering pump 303 can meterly deliver alkali regulator, scale inhibitor, and acid regulator, while the second electric valves 302 can control the delivery through the addition tube 301 for use.

[0032] Specifically, the alkali regulator tank 400 is fixedly installed at the top of the addition pipe 301. When in use, the alkali regulator tank 400 can store alkali regulator so as to adjust the pH of the circulating water.

[0033] Specifically, the scale inhibitor storage tank 500 is fixedly installed at the top of the addition pipe 301. In use, the scale inhibitor storage tank 500 and the acid conditioner tank 600 can store scale inhibitors and add scale inhibitors to the circulating water to inhibit scale growth.

[0034] Specifically, the acid regulator tank 600 is fixedly installed at the top of the addition pipe 301. When in use, the acid regulator tank 600 can store acid regulator so as to adjust the pH of the circulating water.

[0035] Specifically, the cleaning component 700 is fixedly installed on the top cover 200. The cleaning component 700 includes a pump 702 fixedly installed at the top of the top cover 200, a pumping pipe 701 fixedly connected to the pump 702, and a third electric valve 703 fixedly installed on the pumping pipe 701. In use, the pumping pipe 701 can be opened by controlling the third electric valve 703. After opening, the pump 702 can be controlled to pump circulating water into the addition pipe 301 to flush the addition pipe 301.

[0036] Specifically, the conveying assembly 800 is fixedly installed on the right side of the circulation tank 100. The conveying assembly 800 includes a conveying pipe 801 fixedly installed on the right side of the circulation tank 100 and a conveying pump 802 fixedly connected to the conveying pipe 801. In use, the conveying pump 802 can be controlled to convey the circulating water in the circulation tank 100 to the heat exchanger 900 for cooling.

[0037] Specifically, the heat exchanger 900 is fixedly installed on the right side of the conveying assembly 800. A circulating water discharge pipe 901, a cooling water inlet pipe 903, and a cooling water discharge pipe 905 are fixedly installed on the left side of the heat exchanger 900. A temperature sensor 902 and a butterfly valve 904 are fixedly installed on the circulating water discharge pipe 901 and the cooling water inlet pipe 903, respectively. In use, cooling water can be injected into the heat exchanger 900 through the cooling water inlet pipe 903, and the flow rate of the cooling water can be controlled by the butterfly valve 904. The cooling water after heat exchange can be discharged through the cooling water discharge pipe 905, and the cooled circulating water can be discharged through the circulating water discharge pipe 901, so as to reduce the temperature of the circulating water through heat exchange.

[0038] The working principle and usage process of this utility model are as follows: During use, the pH sensor 105 can detect the pH value of the circulating water in the circulation tank 100 in real time. When the pH value is too high, the control terminal will automatically control the opening of the second electric valve 302 below the acid regulator tank 600. After opening, the metering pump 303 will quantitatively deliver the acid regulator from the acid regulator tank 600 until the circulating water is neutral. When the pH value is too low, the control terminal will automatically control the opening of the second electric valve 302 below the acid-base regulator tank 400. After opening, the metering pump 303 will... 3. The alkaline conditioner in the alkaline conditioner tank 400 will be metered and delivered until the circulating water is neutral. Then, the second electric valve 302 below the scale inhibitor storage tank 500 can be opened. After opening, the metering pump 303 will meter and deliver the scale inhibitor in the scale inhibitor storage tank 500. After delivery, the scale will be inhibited. When cleaning is required, the third electric valve 703 can be opened. After opening, the pumping pump 702 will be operated. The operating pumping pump 702 can pump the circulating water in the circulating tank 100 to the addition pipe 301 for flushing through the pumping pipe 701.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A temperature controllable underwater polyester pelletizer water circulation device, characterized in that, include: A pH sensor (105) and a water level flow meter (106) are fixedly installed on the inside of the circulation tank (100); A top cover (200) is fixedly installed on the top of the circulation box (100); The quantitative addition component (300) includes an addition tube (301) fixedly disposed at the top of the top cover (200), a metering pump (303) fixedly connected to the addition tube (301), and three second electric valves (302) fixedly disposed on the addition tube (301); An alkali adjuster tank (400) is fixedly installed at the top of the addition tube (301); A scale inhibitor storage tank (500) is fixedly installed at the top of the addition pipe (301); An acid conditioner container (600) is fixedly mounted at the top of the addition tube (301); A cleaning component (700) is fixedly mounted on the top cover (200); The conveying assembly (800) is fixedly disposed on the right side of the circulation box (100); The heat exchanger (900) is fixedly disposed on the right side of the conveying assembly (800).

2. A temperature controlled underwater polyester pelletizer water circulation device according to claim 1, wherein, The front and rear ends of the circulation tank (100) are respectively fixedly provided with a sewage pipe (101) and a water supply pipe (103), and a manual valve (102) and a first electric valve (104) are respectively fixedly provided on the sewage pipe (101) and the water supply pipe (103).

3. A temperature controlled underwater polyester pelletizer water circulation device as claimed in claim 1, wherein, The top of the top cover (200) is fixedly provided with an inlet pipe (201) and a support base (202).

4. The water circulation device for a temperature-controllable underwater polyester pelletizer according to claim 1, characterized in that, The cleaning assembly (700) includes a pump (702) fixedly installed at the top of the top cover (200), a pump pipe (701) fixedly connected to the pump (702), and a third electric valve (703) fixedly installed on the pump pipe (701).

5. The water circulation device for a temperature-controllable underwater polyester pelletizer according to claim 1, characterized in that, The conveying assembly (800) includes a conveying pipe (801) fixedly disposed on the right side of the circulation tank (100) and a conveying pump (802) fixedly connected to the conveying pipe (801).

6. The water circulation device for a temperature-controllable underwater polyester pelletizer according to claim 1, characterized in that, The heat exchanger (900) is fixedly provided with a circulating water discharge pipe (901), a cooling water inlet pipe (903) and a cooling water discharge pipe (905) on the left side. A temperature sensor (902) and a butterfly valve (904) are fixedly provided on the circulating water discharge pipe (901) and the cooling water inlet pipe (903) respectively.

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