Constant temperature water tank for plastic flat wire drawing machine

Abstract

The utility model relates to a constant temperature water tank of plastic flat wire drawing machine, including water tank, still including heat exchanger and water chilling unit, the water outlet of water tank is connected with the water inlet of heat exchanger head through first pipeline, the water outlet of heat exchanger head is connected with the water inlet of water tank through second pipeline, be provided with water tank circulating pump on first pipeline, the water outlet of heat exchanger casing is connected with the water inlet of water chilling unit through third pipeline, the water outlet of water chilling unit is connected with the water inlet of heat exchanger casing through fourth pipeline, be provided with cold water circulating pump on fourth pipeline. This constant temperature water tank of plastic flat wire drawing machine is circulated and flows in the independent closed pipeline through the water in water tank, realizes water temperature regulation under the action of heat exchanger and water chilling unit, both water saving and electricity saving, and temperature fluctuation amplitude is smaller, to guarantee the cooling effect of the plastic film that passes through water tank.

Description

Technical Field

[0001] This utility model relates to the field of wire drawing machine technology, and in particular to a constant temperature water tank for a plastic flat wire drawing machine. Background Technology

[0002] After the plastic flat filament drawing machine extrudes plastic into a thin film, the plastic film needs to be introduced into a water tank for cooling and shaping. In order to ensure the cooling and shaping effect, the water temperature in the tank must be kept constant. In the existing technology, in order to maintain a constant water temperature in the tank, lower temperature water is added to the tank in a timely manner while higher temperature water is discharged from the tank at the same time. However, this kind of constant temperature water tank consumes a lot of water and the water temperature fluctuates greatly, making it difficult to control precisely, resulting in unstable product quality.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes a constant temperature water tank for a plastic flat wire drawing machine, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A constant temperature water tank for a plastic flat filament drawing machine includes a water tank, a heat exchanger, and a chiller unit. The heat exchanger consists of a heat exchanger head and a heat exchanger shell. The outlet of the water tank is connected to the inlet of the heat exchanger head via a first pipe, and the outlet of the heat exchanger head is connected to the inlet of the water tank via a second pipe. A water tank circulation pump is installed on the first pipe. The outlet of the heat exchanger shell is connected to the inlet of the chiller unit via a third pipe, and the outlet of the chiller unit is connected to the inlet of the heat exchanger shell via a fourth pipe. A chilled water circulation pump is installed on the fourth pipe.

[0006] Preferably, the water tank is equipped with a water tank thermocouple that works with the water tank circulation pump, and the chiller unit is equipped with a chilled water thermocouple that works with the chilled water circulation pump.

[0007] Preferably, a water tank switch valve is provided on the first pipeline.

[0008] Preferably, a chiller unit on / off valve is installed on the fourth pipe.

[0009] Preferably, the water inlet of the water tank is located above the water outlet of the water tank.

[0010] Preferably, the lower right corner of the water tank is beveled, and the water outlet and the thermocouple of the water tank are located at the lower right corner of the water tank.

[0011] In summary, the beneficial effects of this utility model are as follows: the water in the water tank circulates in a closed pipeline and exchanges heat with the water in the chiller unit when it flows through the heat exchanger, thereby achieving water temperature regulation to maintain a constant water temperature in the water tank, which saves both water and electricity, and the temperature fluctuation is smaller, thus ensuring the cooling effect of the plastic film passing through the water tank. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0014] In the diagram: 1. Water tank; 2. Heat exchanger; 21. Heat exchanger head; 22. Heat exchanger shell; 3. Cooling unit; 4. First pipe; 5. Second pipe; 6. Water tank circulation pump; 7. Third pipe; 8. Fourth pipe; 9. Cold water circulation pump; 10. Water tank thermocouple; 11. Cold water thermocouple; 12. Water tank switch valve; 13. Chiller unit switch valve. Detailed Implementation

[0015] The following will refer to the appendix in the embodiments of this utility model. Figure 1 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] As shown in the figure, a constant temperature water tank for a plastic flat wire drawing machine includes a water tank 1, a heat exchanger 2, and a chiller unit 3. The heat exchanger 2 is located on one side of the water tank and consists of a heat exchange head 21 and a heat exchanger shell 22. The outlet of the water tank 1 is connected to the inlet of the heat exchange head 21 through a first pipe 4, and the outlet of the heat exchange head 21 is connected to the inlet of the water tank 1 through a second pipe 5. A water tank circulation pump 6 is installed on the first pipe 4. The outlet of the heat exchanger shell 22 is connected to the inlet of the chiller unit 3 through a third pipe 7, and the outlet of the chiller unit 3 is connected to the inlet of the heat exchanger shell 22 through a fourth pipe 8. A chilled water circulation pump 9 is installed on the fourth pipe 8.

[0017] In the above structure, the water in water tank 1 circulates under the action of water tank circulation pump 6 along an independent closed pipeline of water tank 1—first pipe 4—heat exchanger head 21—second pipe 5—water tank 1. The water in chiller unit 3 circulates under the action of chilled water circulation pump 9 along an independent closed pipeline of chiller unit 3—third pipe 7—heat exchanger shell 22—fourth pipe 8—chiller unit 3. The water with a higher temperature in water tank 1 and the water with a lower temperature in chiller unit 3 exchange heat when they circulate to heat exchanger head 21 and heat exchanger shell 22 respectively, so that the water in water tank 1... After the temperature drops, the water circulates through the second pipe 5 into the water tank 1, keeping the water temperature in the water tank 1 constant. When the water in the chiller unit 3 circulates to the chiller unit 3 after the temperature rises, it is cooled by the action of the chiller unit 3. The specific structure and working principle of the heat exchanger 2 and the cooling unit 3 are existing technologies and will not be described in detail here. Through the above structure and method, the water in the water tank 1 circulates in the closed pipe to regulate the temperature and keep the water temperature in the water tank 1 constant. This saves water and electricity, and the temperature fluctuation is smaller, thus ensuring the cooling effect of the plastic film passing through the water tank 1.

[0018] In addition, based on the above structure, the water tank 1 is equipped with a water tank thermocouple 10 that works with the water tank circulation pump 6, and the chiller unit 3 is equipped with a chilled water thermocouple 11 that works with the chilled water circulation pump 9. The water tank thermocouple 10 and the chilled water thermocouple 11 are used to collect electrical signals of the water temperature in the water tank 1 and the water temperature in the chiller unit 3, respectively. After the electrical signals are processed by the control center, the rotation speed of the water tank circulation pump 6 and the chilled water circulation pump 9 are adjusted to regulate the water flow speed and thus achieve water temperature regulation in the water tank, thereby making the water temperature in the water tank more constant.

[0019] In addition, based on the above structure, a water tank switch valve 12 is provided on the first pipe 4. The water tank switch valve 12 facilitates the opening and closing of the water circulation pipeline in the water tank 1, thereby facilitating the cleaning of the water tank 1.

[0020] In addition, based on the above structure, a chiller unit switch valve 13 is provided on the fourth pipe 8. The chiller unit switch valve 13 facilitates the opening and closing of the water circulation pipeline in the chiller unit 3, thereby facilitating the cleaning of the chiller unit 3.

[0021] Furthermore, based on the above structure, the inlet of the water tank 1 is located above the outlet of the water tank 1. Water that has been cooled by the heat exchanger 2 flows into the water tank 1 through the inlet. By setting the inlet of the water tank 1 above the outlet, the cooled water naturally flows downward and forms a circulation inside the water tank, making the water temperature regulation of the water tank 1 faster and keeping the water temperature inside the water tank 1 constant.

[0022] Furthermore, based on the above structure, the lower right corner of the water tank 1 is sloping. The water outlet and the water tank thermocouple 10 are located at the lower right corner of the water tank 1. After the water temperature drops, it enters the water tank through the water inlet and flows downward to the sloping surface at the lower right corner of the water tank 1. This can prevent eddies from being generated when the water flows, ensure smooth water circulation in the water tank 1, and thus keep the water temperature in the water tank 1 constant.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A constant temperature water tank for a plastic flat wire drawing machine, comprising a water tank (1), characterized in that: It also includes a heat exchanger (2) and a chiller unit (3). The heat exchanger (2) consists of a heat exchanger head (21) and a heat exchanger shell (22). The outlet of the water tank (1) is connected to the inlet of the heat exchanger head (21) through a first pipe (4). The outlet of the heat exchanger head (21) is connected to the inlet of the water tank (1) through a second pipe (5). A water tank circulation pump (6) is installed on the first pipe (4). The outlet of the heat exchanger shell (22) is connected to the inlet of the chiller unit (3) through a third pipe (7). The outlet of the chiller unit (3) is connected to the inlet of the heat exchanger shell (22) through a fourth pipe (8). A chilled water circulation pump (9) is installed on the fourth pipe (8).

2. The constant temperature water tank of the plastic flat filament drawing machine according to claim 1, characterized in that: The water tank (1) is equipped with a water tank thermocouple (10) that works with the water tank circulation pump (6), and the chiller unit (3) is equipped with a chilled water thermocouple (11) that works with the chilled water circulation pump (9).

3. The constant temperature water tank of the plastic flat filament drawing machine according to claim 2, characterized in that: A water tank switch valve (12) is installed on the first pipe (4).

4. The constant temperature water tank of the plastic flat filament drawing machine according to claim 3, characterized in that: The fourth pipe (8) is equipped with a chiller unit switch valve (13).

5. The constant temperature water tank of the plastic flat filament drawing machine according to claim 4, characterized in that: The inlet of the water tank (1) is located above the outlet of the water tank (1).

6. The constant temperature water tank of the plastic flat filament drawing machine according to claim 5, characterized in that: The lower right corner of the water tank (1) is sloping, and the water outlet and the water tank thermocouple (10) are located at the lower right corner of the water tank (1).

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