Cooling tower energy-saving device

Abstract

The utility model relates to an energy-saving device of a cooling tower, and belongs to the field of heat exchange equipment. Comprising a cooling tower and a pure water cooling device and is used for solving the problem of scaling of heat exchange cooling fins of the cooling tower and the pure water cooling device, reducing waste, saving energy, reducing emission and improving the automation degree.

Description

Technical Field

[0001] The utility model relates to a cooling tower energy-saving device, belonging to the field of heat exchange equipment. Background Art

[0002] In the field of rare earth metal electrolysis by molten salt method, cooling towers are mainly used for external circulation cooling of pure water cooling devices. The heat of the switching power supply of the electrolytic furnace is taken away through the heat exchange of the pure water cooling device to achieve the normal operation of the switching power supply equipment. When the cooling tower is in the process of external circulation cooling of the pure water cooling device, when the seasons change and the ambient temperature is low, even if the water temperature is very low, the fan motor will always be turned on, causing unnecessary energy loss. For example, Chinese patent CN217058421U is a cooling tower water supply energy-saving control device, which installs a temperature sensor in the pool and controls the speed of the three-phase asynchronous motor to change according to the actual temperature of the cooling water in the pool. The motor is still running all year round, but the motor frequency changes the motor speed to achieve partial energy saving effect.

[0003] During the actual circulation operation of the cooling tower, since the water contains calcium, magnesium ions, dissolved oxygen, etc., it is easy to form scale, which can easily cause blockage of the external circulation heat exchange plate of the pure water cooling device and affect the heat exchange efficiency of the cooling tower.

[0004] Therefore, a cooling tower that can solve the scaling problem and save energy is needed. Utility Model Content

[0005] The utility model aims to provide a cooling tower energy-saving device, which is used to solve the problem of scaling of heat exchange fins of the cooling tower, reduce waste, save energy and reduce emissions, and improve the degree of automatic control.

[0006] The utility model is realized through the following technical solutions.

[0007] A cooling tower energy-saving device, comprising a cooling tower and a pure water cooling device;

[0008] The cooling tower comprises a cooling tower 1, a cooling fan motor 2, a temperature control device 3, a thermocouple 4, an online conductivity detection device 5, and a drain 7; the cooling fan motor 2 is arranged on the top of the cooling tower 1, the temperature control device 3 is arranged outside the cooling tower 1, a thermocouple 4 is arranged on one side of the bottom of the cooling tower 1, the cooling fan motor 2 is connected to the temperature control device 3 through a control motor connection line, and the temperature control device 3 is connected to the thermocouple 4 through a control motor connection line; an online conductivity detection device 5 is arranged on the other side of the bottom of the cooling tower 1; the drain 7 is arranged at the bottom of the cooling tower 1;

[0009] The pure water cooling device comprises a pure water cooling device 8 , a water outlet 10 , and a water inlet 11 ; the cooling tower 1 is connected to the pure water cooling device 8 via the water outlet 10 and the water inlet 11 .

[0010] Furthermore, it also includes an electronic valve 6, which is arranged on the drain outlet 7, and the electronic valve 6 is connected to the online conductivity detection 5 through a connecting line.

[0011] Furthermore, it also includes a water replenishment port 12, which is arranged at the bottom of the cooling tower 1. A float valve is arranged on the water replenishment port 12, and the opening and closing of the water replenishment port 12 is controlled by the float valve.

[0012] Furthermore, it also includes a pipeline pump 9 , which is arranged on the water inlet 11 .

[0013] The utility model has the following beneficial technical effects:

[0014] 1. This application has a high degree of automation. Through the temperature control device, the cooling fan motor is controlled to start and stop, which can save more than 40% of electricity and increase the service life of the cooling fan motor.

[0015] 2. Automatic drainage and water replenishment can be achieved through online detection of water conductivity, and circulating water containing impurities can be discharged to ensure that the circulating water does not scale, thus solving the problem of blockage of the external circulation heat exchange plate of the pure water cooling device and improving the heat exchange rate of the equipment.

[0016] 3. The cooling tower discharges circulating water to the purification tower pool to reduce waste and achieve the recycling of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Reference numerals:

[0019] 1-Cooling tower, 2-Cooling fan motor, 3-Temperature control device, 4-Thermocouple, 5-Online conductivity detection, 6-Electronic valve, 7-Drain outlet, 8-Pure water cooling device, 9-Pipeline pump, 10-Water outlet, 11-Water inlet, 12-Water supply inlet. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solution of the utility model in conjunction with the drawings of the specification. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance, quantity or position.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] As attached Figure 1 As shown, the cooling tower includes a cooling tower 1, a cooling fan motor 2, a temperature control device 3, a thermocouple 4, an online conductivity detection 5, and a drain 7; the cooling fan motor 2 is arranged on the top of the cooling tower 1, the temperature control device 3 is arranged outside the cooling tower 1, and the thermocouple 4 is arranged on one side of the bottom of the cooling tower 1, the cooling fan motor 2 is connected to the temperature control device 3 through a control motor connecting line, and the temperature control device 3 is connected to the thermocouple 4 through a control motor connecting line; the online conductivity detection 5 is arranged on the other side of the bottom of the cooling tower 1; the drain 7 is arranged at the bottom of the cooling tower 1;

[0025] The pure water cooling device comprises a pure water cooling device 8 , a water outlet 10 , and a water inlet 11 ; the cooling tower 1 is connected to the pure water cooling device 8 via the water outlet 10 and the water inlet 11 .

[0026] Furthermore, it also includes an electronic valve 6, which is arranged on the drain outlet 7, and the electronic valve 6 is connected to the online conductivity detection 5 through a connecting line.

[0027] Furthermore, it also includes a water replenishment port 12, which is arranged at the bottom of the cooling tower 1. A float valve is arranged on the water replenishment port 12, and the opening and closing of the water replenishment port 12 is controlled by the float valve.

[0028] Furthermore, it also includes a pipeline pump 9 , which is arranged on the water inlet 11 .

[0029] The working process is as follows: the circulating water in the cooling tower 1 is transported from the water inlet 11 to the pure water cooling device 8 through the pipeline pump 9, heat exchange is carried out in the external circulation heat exchange plate of the pure water cooling device 8, the pure water in the pure water cooling device 8 is cooled, and then the circulating water in the pure water cooling device 8 is transported to the cooling tower 1 through the water outlet 10.

[0030] A thermocouple 4 is installed on one side of the bottom of the cooling tower 1. When the temperature exceeds 30°C, the cooling fan motor 2 is automatically turned on by the temperature control device 3 for heat dissipation. When the temperature drops to 20°C, the cooling fan motor 2 is automatically stopped by the temperature control device 3. The cooling fan motor 2 is controlled to start and stop by the temperature control device 3, which can save more than 40% of electricity and increase the service life of the cooling fan motor. An online conductivity detection device 5 is installed on the other side of the bottom of the cooling tower 1. When the online conductivity detection device 5 detects that the conductivity exceeds 300, the electronic valve 6 is automatically opened to drain water to the purification tower through the drain port 7. While draining water, the water replenishment port 12 is automatically replenished through a float valve. When the conductivity drops to 80, the electronic valve 6 is automatically closed to stop draining. At the same time, the water replenishment port 12 is controlled by a float valve to stop replenishing water, so as to keep the water level balance of the cooling tower 1. The automatic drainage and replenishment are realized by online detection of the conductivity in the water, and the circulating water containing impurities is discharged to ensure that the circulating water is not scaled, thereby solving the problem of blockage of the external circulation heat exchange plate of the pure water cooling device 8 and improving the heat exchange rate of the equipment. The cooling tower 1 discharges the circulating water to the purification tower pool to reduce waste and realize the recycling of resources.

[0031] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The protection scope of the present invention is defined by the claims and their equivalent technical solutions.

Claims

1. A cooling tower energy saving device, characterized in that: Including cooling tower and pure water cooling device; The cooling tower comprises a cooling tower (1), a cooling fan motor (2), a temperature control device (3), a thermocouple (4), an online conductivity detection device (5), and a drain (7); the cooling fan motor (2) is arranged on the top of the cooling tower (1), the temperature control device (3) is arranged on the outside of the cooling tower (1), a thermocouple (4) is arranged on one side of the bottom of the cooling tower (1), the cooling fan motor (2) is connected to the temperature control device (3) through a control motor connection line, and the temperature control device (3) is connected to the thermocouple (4) through a control motor connection line; the online conductivity detection device (5) is arranged on the other side of the bottom of the cooling tower (1); the drain (7) is arranged at the bottom of the cooling tower (1); The pure water cooling device comprises a pure water cooling device (8), a water outlet (10), and a water inlet (11); the cooling tower (1) is connected to the pure water cooling device (8) via the water outlet (10) and the water inlet (11).

2. A cooling tower energy saving device according to claim 1, characterized in that: It also comprises an electronic valve (6), which is arranged on the drain outlet (7), and the electronic valve (6) is connected to the online conductivity detection (5) via a connecting line.

3. A cooling tower energy saving device according to claim 1, characterized in that: It also comprises a water replenishment port (12), wherein the water replenishment port (12) is arranged at the bottom of the cooling tower (1).

4. A cooling tower energy saving device according to claim 1, characterized in that: It also comprises a pipeline pump (9), wherein the pipeline pump (9) is arranged on the water inlet (11).

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