A closed cooling tower for circulating water treatment

Abstract

The utility model discloses a circulating water treatment closed cooling tower, including the tower body, is equipped with the spraying subassembly in the tower body, the top fixed mounting of tower body has the exhaust fan, the inner wall of tower body is set up and goes into the air inlet to the surface of tower body, the inside fixed communication of tower body has the outlet pipe, the inner wall fixed mounting of tower body has the filler layer, the inner wall fixed mounting of tower body has the filter screen, and the inside of tower body is equipped with cleaning assembly. Through setting up filter screen, can after the cooling of circulating water carry out the impurity interception, effectively remove dust, rust and microbial flocculation in water and so on Impurity, avoid the pipe blockage or equipment corrosion caused by impurity backflow, through setting up cleaning assembly, can automatically remove the impurity attached on filter screen, prevent filter hole blockage and affect the filtration efficiency, through the mutual cooperation use between filter screen and cleaning assembly, can realize the sustained and efficient filtration of circulating water and filter screen self -cleaning, ensure that circulating water quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a closed-loop cooling tower for circulating water treatment. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere to lower the water temperature. Its cooling effect is achieved by the heat exchange between water and air flow to generate steam. The steam evaporates and carries away the heat, thus dissipating the waste heat generated in industrial processes or refrigeration and air conditioning systems to lower the water temperature and ensure the normal operation of the system. The device is generally barrel-shaped, hence the name cooling tower.

[0003] However, existing closed-loop cooling towers for circulating water treatment have certain shortcomings in practical applications. Most of these devices only focus on the cooling function and lack a filtration mechanism for impurities in the circulating water after cooling. When the circulating water comes into contact with air and the inner wall of the equipment during the cooling process, it is easy for impurities such as dust, rust, and microbial flocs to be mixed in. If these impurities are directly returned to the circulation system, it may cause pipe blockage, equipment corrosion, and even affect heat exchange efficiency. Utility Model Content

[0004] The problem this invention aims to solve is to provide a closed-loop cooling tower for circulating water treatment with high-efficiency filtration function.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a closed-loop cooling tower for circulating water treatment, including a tower body, a spray assembly inside the tower body, an exhaust fan fixedly installed on the top of the tower body, an air inlet on the inner wall of the tower body extending to the outer surface of the tower body, a water outlet pipe fixedly connected to the inside of the tower body, a packing layer fixedly installed on the inner wall of the tower body, a filter screen fixedly installed on the inner wall of the tower body, and a cleaning assembly inside the tower body.

[0006] Preferably, in the above-mentioned closed-loop cooling tower for circulating water treatment, the cleaning component includes a waterproof motor fixedly installed on the inner wall of the bottom of the tower body, the output end of the waterproof motor is fixedly connected to a rotating shaft, and the outer surface of the rotating shaft is rotatably connected to the inner wall of the brush.

[0007] Preferably, in the above-mentioned closed-loop cooling tower for circulating water treatment, the end of the rotating shaft away from the waterproof motor is fixedly connected to a mounting bracket, and the mounting bracket is located above the filter screen.

[0008] Preferably, in the above-mentioned closed-loop cooling tower for circulating water treatment, a brush is fixedly connected to the bottom of the mounting bracket, and the bottom of the brush contacts the top of the filter screen.

[0009] Preferably, in the above-mentioned closed-loop cooling tower for circulating water treatment, the spray assembly includes a pump body fixedly installed on the outer surface of the tower body, the input end of the pump body is fixedly connected to a water pipe one, the output end of the pump body is fixedly connected to a water pipe two, and the water pipe two penetrates into the interior of the tower body.

[0010] Preferably, in the above-mentioned closed-loop cooling tower for circulating water treatment, the water pipe 2 is internally connected to nozzles arranged at equal intervals, and the nozzles are located above the packing layer.

[0011] The advantages and beneficial effects of this utility model are:

[0012] This invention, by incorporating a filter screen, can intercept impurities in the cooled circulating water, effectively removing dust, rust, and microbial flocs, thus preventing backflow of impurities that could cause pipe blockage or equipment corrosion. The cleaning component automatically removes impurities adhering to the filter screen, preventing filter pore blockage and ensuring filtration efficiency. Through the coordinated use of the filter screen and cleaning component, continuous and efficient filtration of the circulating water and self-cleaning of the filter screen are achieved, ensuring stable circulating water quality, reducing manual maintenance costs, extending equipment lifespan, and improving system reliability.

[0013] This invention, through the cooperation of the pump body, water pipe one, water pipe two, and nozzles, can pressurize circulating water through the pump body and then evenly spray it onto the packing layer through the nozzles, thereby increasing the contact area between water and air and improving heat exchange efficiency. At the same time, the evenly distributed nozzles can ensure that the water flow evenly covers the packing layer, avoiding local water accumulation or drying, thus enhancing the cooling effect, reducing the temperature fluctuation of the circulating water, and achieving the purpose of energy saving and consumption reduction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cleaning component of this utility model;

[0017] Figure 4 This is a schematic diagram of the spray assembly of this utility model.

[0018] In the diagram: 1. Tower body; 2. Spray assembly; 201. Pump body; 202. Water pipe one; 203. Water pipe two; 204. Sprayer head; 3. Exhaust fan; 4. Air inlet; 5. Water outlet pipe; 6. Packing layer; 7. Filter screen; 8. Cleaning assembly; 801. Waterproof motor; 802. Shaft; 803. Mounting bracket; 804. Brush. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4 As shown, a closed-loop cooling tower for circulating water treatment includes a tower body 1, which is the main load-bearing structure of the closed-loop cooling tower. It is made of corrosion-resistant metal material and has an overall cylindrical sealed design. The internal space is divided into a spray zone, a heat exchange zone and a water collection zone according to function. A detachable maintenance door can be installed on the side wall of the tower body 1. The door frame is equipped with a sealing structure to facilitate the maintenance of internal components and at the same time ensure the airtightness of the system to prevent heat loss and impurity intrusion.

[0021] An exhaust fan 3 is fixedly installed on the top of the tower body 1. The exhaust fan 3 adopts an axial flow fan structure and is driven by a motor to form an upward airflow channel. It works with the air inlet 4 of the tower body 1 to form air convection, accelerate the air flow inside the tower, and enhance the heat exchange efficiency between water and air.

[0022] An air inlet 4 is provided on the inner wall of the tower body 1, and the air inlet 4 extends to the outer surface of the tower body 1. The air inlet 4 is located on the lower middle side wall of the tower body 1, extends to the outer side of the tower body 1, and is designed to be flared to facilitate air intake. An adjustable louver structure is installed on the inner wall of the air inlet 4. The opening and closing angle is automatically adjusted according to environmental parameters through the linkage control system, which can ensure sufficient air intake and reduce the intake of dust and debris.

[0023] The tower body 1 is internally connected to a water outlet pipe 5, which is connected to the water collection area at the bottom of the tower body 1. One end of the pipe extends into the water collection area, and the other end connects to the external circulation system. A check valve is installed at the pipe interface to prevent backflow of circulating water. Its installation position ensures that the filtered clean water flows out first, thus protecting the water quality of the circulation system.

[0024] The inner wall of the tower body 1 is fixedly installed with a packing layer 6. The packing layer 6 is made of corrugated packing material and is installed in an alternating layered manner to form a complex water flow channel. This structure can prolong the residence time of water in the tower, increase the contact area between water and air, disperse the water flow into a thin film, improve heat exchange efficiency, and ensure that the circulating water is fully cooled.

[0025] A filter screen 7 is fixedly installed on the inner wall of the tower body 1. The filter screen 7 is fixed above the water collection area at the bottom of the tower body 1 and is made of high-strength metal wire mesh. The mesh density can effectively intercept impurities such as dust, rust and microbial flocs in the circulating water.

[0026] The interior of tower body 1 is equipped with a cleaning component 8.

[0027] The waterproof motor 801 of the cleaning component 8 has an IP68 protection rating and is fixed on a waterproof base on the inner wall of the bottom of the tower body 1. The output shaft is connected to the rotating shaft 802 through a coupling. The rotating shaft 802 is a hollow stainless steel tube, and a mounting bracket 803 is fixedly installed on the top.

[0028] A nylon brush 804 is fixedly connected to the bottom of the mounting bracket 803. The brush bristles of the brush 804 have a Shore hardness of 50 degrees. The bottom of the brush maintains a contact pressure of 2mm with the surface of the filter screen 7. When the waterproof motor 801 is driven at a speed of 10r / min, the brush 804 can thoroughly clean the impurities on the surface of the filter screen 7.

[0029] The interior of tower body 1 is equipped with a spray assembly 2.

[0030] The spray assembly 2 includes a pump body 201 fixedly installed on the outer surface of the tower body 1. The pump body 201 is a centrifugal water pump with a rated flow rate of 20 m³ / h, which can draw circulating water from the water collection area through the water pipe 202 and pressurize it to 0.3 MPa.

[0031] The input end of the pump body 201 is fixedly connected to a water pipe 202, and the output end of the pump body 201 is fixedly connected to a water pipe 203. The water pipe 203 extends into the interior of the tower body 1. Both the water pipe 202 and the water pipe 203 are made of DN50 stainless steel corrugated pipe, which has vibration resistance and corrosion resistance. The water pipe 203 extends horizontally after passing through the upper wall of the tower body 1. The water pipe 203 is arranged horizontally along the cross-section of the tower body 1, and several nozzles 204 are evenly distributed on its lower side. The nozzles 204 face the packing layer 6 above, which can evenly spray water to form a water curtain and expand the contact area with the air.

[0032] Working principle: When the closed-loop cooling tower for circulating water treatment is running, the pump body 201 first draws in and pressurizes the circulating water through water pipe 202. The pressurized water is then transported to the interior of the tower body 1 through water pipe 203 and evenly sprayed onto the packing layer 6 through nozzles 204 arranged at equal intervals. The water flow forms a large-area water film on the surface of the packing layer 6, increasing the contact area with the air to enhance heat exchange. At the same time, the exhaust fan 3 at the top of the tower body 1 starts, driving air into the tower from the air inlet 4. The air flows in the opposite direction to the sprayed water flow, carrying away heat from the water through evaporative cooling and convective heat transfer. The cooled air... Gas is discharged from the top of the tower, while the cooled water flows to the bottom of the tower body 1. During this process, as the water flows through the filter screen 7, impurities such as dust, rust, and microbial flocculent matter are intercepted, preventing impurities from flowing back into the circulation system. At the same time, the waterproof motor 801 drives the rotating shaft 802 and the mounting bracket 803 to rotate. The mounting bracket 803 drives the brush 804 to rotate on the top surface of the filter screen 7, continuously removing attached impurities, preventing the filter screen 7 from clogging, and ensuring filtration efficiency. Finally, the filtered circulating water flows out of the tower body 1 through the outlet pipe 5 and returns to the circulation system, thus achieving high efficiency of circulating water.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0034] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A closed-loop cooling tower for circulating water treatment, characterized in that: The tower includes a tower body (1), a spray assembly (2) inside the tower body (1), an exhaust fan (3) fixedly installed on the top of the tower body (1), an air inlet (4) on the inner wall of the tower body (1) extending to the outer surface of the tower body (1), a water outlet pipe (5) fixedly connected inside the tower body (1), a packing layer (6) fixedly installed on the inner wall of the tower body (1), a filter screen (7) fixedly installed on the inner wall of the tower body (1), and a cleaning assembly (8) inside the tower body (1).

2. The closed-loop cooling tower for circulating water treatment according to claim 1, characterized in that: The cleaning assembly (8) includes a waterproof motor (801) fixedly installed on the inner wall of the bottom of the tower body (1). The output end of the waterproof motor (801) is fixedly connected to a rotating shaft (802), and the outer surface of the rotating shaft (802) is rotatably connected to the inner wall of the brush (804).

3. A closed-loop cooling tower for circulating water treatment according to claim 2, characterized in that: The end of the rotating shaft (802) away from the waterproof motor (801) is fixedly connected to a mounting bracket (803), and the mounting bracket (803) is located above the filter screen (7).

4. A closed-loop cooling tower for circulating water treatment according to claim 3, characterized in that: A brush (804) is fixedly connected to the bottom of the mounting bracket (803), and the bottom of the brush (804) is in contact with the top of the filter screen (7).

5. A closed-loop cooling tower for circulating water treatment according to claim 1, characterized in that: The spray assembly (2) includes a pump body (201) fixedly installed on the outer surface of the tower body (1). The input end of the pump body (201) is fixedly connected to a water pipe (202), and the output end of the pump body (201) is fixedly connected to a water pipe (203), and the water pipe (203) penetrates into the interior of the tower body (1).

6. A closed-loop cooling tower for circulating water treatment according to claim 5, characterized in that: The water pipe 2 (203) is internally connected to nozzles (204) arranged at equal intervals, and the nozzles (204) are located above the filler layer (6).

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