Energy-saving device for circulating water

Abstract

This utility model discloses an energy-saving circulating water device, comprising a tower body, an inlet pipe, and an outlet pipe. The tower body contains a spray mechanism, a packing layer, and a cooling water tank. The packing layer is located below the spray mechanism, and the cooling water tank is located below the packing layer. The tower body also contains a heat exchange and cooling mechanism for exchanging heat with the cooling water during the cooling process. This mechanism includes cooling pipes and a pump for supplying coolant to the cooling pipes. By installing cooling pipes, this utility model allows the hot water to undergo heat exchange before spraying, reducing the heat dissipation load on the subsequent packing layer and significantly improving the heat dissipation or heat exchange effect of the entire circulating water system. Furthermore, by using an absorption heat pump to treat the high-temperature coolant flowing out of the cooling pipes, extracting and reusing its heat, it avoids heat waste, effectively reduces system energy consumption, improves energy utilization, and reduces thermal pollution caused by direct heat emissions.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving device technology, specifically a circulating water energy-saving device. Background Technology

[0002] Circulating water refers to water resources that are reused through a circulation system in industrial production processes. It is mainly used for cooling, heating, washing, or as a process medium. Its core feature is that it reduces the consumption of fresh water and wastewater discharge through recycling, while maintaining stable system operation through water treatment.

[0003] Existing circulating water systems primarily rely on heat exchange between water and air during the cooling process. They utilize evaporative cooling and contact cooling. Hot water is sprayed down through a spray system and comes into contact with the air flowing upwards below (via a fan). This contact cooling process lowers the water temperature, enabling the circulating water to be cooled and reused. However, during use, traditional cooling towers have limited evaporative cooling effects when the external weather is hot. A significant amount of heat remains in the circulating water, resulting in poor heat dissipation or heat exchange throughout the system. Furthermore, the dissipated heat cannot be collected and utilized, ultimately leading to energy waste. Utility Model Content

[0004] The purpose of this invention is to provide a circulating water energy-saving device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A circulating water energy-saving device includes a tower body, an inlet pipe, and an outlet pipe. The tower body is equipped with a spray mechanism, a packing layer, and a cooling water tank. The packing layer is located below the spray mechanism, and the cooling water tank is located below the packing layer. The tower body is equipped with a heat exchange and cooling mechanism for exchanging heat with the cooling water during the cooling process. The heat exchange and cooling mechanism includes a cooling pipe and a pump body for conveying coolant into the cooling pipe.

[0007] Preferably, the top of the tower body is also provided with a hot air exhaust port, a fan is installed inside the hot air exhaust port, and an opening is provided on the tower body, which is located in the middle of the packing layer and the cooling water tank.

[0008] Preferably, one end of the liquid inlet pipe is connected to the liquid inlet end of the spraying mechanism, and one end of the liquid outlet pipe is connected to the interior of the cooling water tank.

[0009] Preferably, the cooling pipe is arranged around the inside of the tower body and is located at the middle position between the spray mechanism and the packing layer.

[0010] Preferably, the inlet end of the cooling pipe is connected to the outlet end of the pump body, and the inlet end of the pump body is connected to an external cooling tank containing coolant.

[0011] Preferably, an absorption heat pump is installed on the outside of the tower body, and the liquid outlet of the cooling pipe is connected to the liquid inlet of the absorption heat pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by installing cooling pipes, allows hot water to undergo heat exchange before spraying, reducing the heat dissipation load on the subsequent packing layer. In hot weather and other operating conditions, it compensates for the limited evaporative heat dissipation effect of traditional cooling towers, significantly improving the heat dissipation or heat exchange effect of the entire circulating water system. Furthermore, by using an absorption heat pump to treat the high-temperature coolant flowing out of the cooling pipes, it extracts and reuses the heat, avoiding heat waste, effectively reducing system energy consumption, improving energy utilization, and reducing thermal pollution caused by direct heat emissions. 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 schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the cooling pipe structure of this utility model.

[0017] In the diagram: 1. Tower body; 2. Hot gas exhaust port; 3. Spraying mechanism; 4. Packing layer; 5. Cooling water tank; 6. Fan; 7. Liquid inlet pipe; 8. Liquid outlet pipe; 9. Cooling pipe; 10. Pump body; 11. Absorption heat pump. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within 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.

[0021] Please see Figure 1-3 A circulating water energy-saving device includes a tower body 1, an inlet pipe 7, and an outlet pipe 8. The tower body 1 is internally equipped with a spray mechanism 3, a packing layer 4, and a cooling water tank 5. The packing layer 4 is located below the spray mechanism 3, and the cooling water tank 5 is located below the packing layer 4. The tower body 1 is internally equipped with a heat exchange and cooling mechanism for exchanging heat with the cooling water during the cooling process. The heat exchange and cooling mechanism includes a cooling pipe 9 and a pump body 10 for conveying coolant into the cooling pipe 9. The tower body 1 serves as the main frame of the device, dividing the internal space, supporting the various components, and guiding the flow path of air and water. The spray mechanism 3 receives hot water to be cooled from the outside through the inlet pipe 7 and sprays it evenly outwards onto the packing layer 4. Layer 4 increases the contact area and contact time between cooling water and air, reducing water temperature through evaporative and contact heat dissipation. Cooling water tank 5 collects the cooling water cooled by packing layer 4 and delivers the water in cooling water tank 5 to the circulation system through outlet pipe 8. Cooling pipe 9, through the continuously circulating cooling water inside, can contact the hot water before spraying and exchange heat, reducing the hot water temperature in advance, reducing the heat dissipation load of subsequent packing layer 4, improving the overall efficiency of the cooling tower, and recovering waste heat. Pump body 10 drives the coolant to circulate in cooling pipe 9, absorbing heat from hot water and hot air. The coolant flow rate can be adjusted by further setting frequency converter control to adapt to the heat exchange requirements under different working conditions and avoid energy waste.

[0022] Please see Figure 2The top of the tower body 1 is also provided with a hot air exhaust port 2, and a fan 6 is installed inside the hot air exhaust port 2. An opening is provided on the tower body 1, which is located in the middle of the packing layer 4 and the cooling water tank 5. One end of the liquid inlet pipe 7 is connected to the liquid inlet end of the spray mechanism 3, and one end of the liquid outlet pipe 8 is connected to the inside of the cooling water tank 5. The hot air exhaust port 2 is located at the top of the tower body 1, which exhausts the hot and humid air carrying heat during the cooling process. The fan 6 accelerates the air flow and enhances the heat exchange efficiency. The opening is an air inlet to ensure air circulation inside the tower. The fan 6 is installed inside the hot air exhaust port 2 to forcibly extract the air inside the tower, accelerate the relative flow of air and water, and improve the evaporative heat dissipation efficiency.

[0023] Please see Figure 3 Cooling pipe 9 is arranged around the inside of tower body 1 and is located between spray mechanism 3 and packing layer 4. The liquid inlet of cooling pipe 9 is connected to the liquid outlet of pump body 10. The liquid inlet of pump body 10 is connected to an external cooling tank containing coolant. An absorption heat pump 11 is installed outside tower body 1, and the liquid outlet of cooling pipe 9 is connected to the liquid inlet of absorption heat pump 11. Cooling pipe 9 is arranged around the spray mechanism 3 and packing layer 4. The outer side contacts the hot water before spraying, and the inner side is pumped with coolant through pump body 10. It exchanges heat with hot water and rising hot air through the pipe wall, reduces the hot water temperature in advance, reduces the heat dissipation load of subsequent packing layer 4, improves the overall efficiency of cooling tower, and recovers waste heat. Pump body 10 drives coolant to circulate in cooling pipe 9, absorbing heat from hot water and hot air. Absorption heat pump 11 collects the high-temperature coolant flowing out of cooling pipe 9, extracts the heat and improves its quality before transporting it outward, realizing waste heat recovery, further reducing system energy consumption, and reducing thermal pollution emissions.

[0024] Working principle: As the device is used, the hot water to be cooled flows into the spray mechanism 3 through the inlet pipe 7 and is evenly sprayed onto the packing layer 4 below. During the falling of the hot water, the cooling pipe 9 located between the spray mechanism 3 and the packing layer 4 begins to function. The pump body 10 drives the coolant in the external cooling tank to circulate within the cooling pipe 9. The coolant exchanges heat with the falling hot water and the rising hot air through the pipe wall, absorbing some heat in advance and lowering the temperature of the hot water. After the initial cooling, the hot water reaches the packing layer 4 and comes into full contact with the air flowing from bottom to top (air is drawn from the tower by the fan 6 in the hot air exhaust port 2, forming an airflow). The water temperature is further reduced through evaporative cooling and contact cooling. The cooled water falls into the cooling water tank 5 below and is transported to the circulation system through the outlet pipe 8 for reuse. At the same time, the high-temperature coolant that has absorbed heat... Coolant flows out from cooling pipe 9 and enters absorption heat pump 11. Absorption heat pump 11 extracts heat from the coolant and improves its quality before transporting it outward, realizing waste heat recovery. The cooled coolant returns to the cooling tank and continues to circulate under the action of pump body 10, completing the entire circulating water cooling and waste heat recovery process. The setting of cooling pipe 9 allows hot water to undergo heat exchange before spraying, reducing the heat dissipation load of the subsequent packing layer 4. Under hot weather and other operating conditions, it makes up for the limited heat dissipation effect of traditional cooling towers and significantly improves the heat dissipation or heat exchange effect of the entire circulating water system. By treating the high-temperature coolant flowing out of cooling pipe 9 through absorption heat pump 11, extracting and reusing the heat in it, heat waste is avoided, the system energy consumption is effectively reduced, the energy utilization rate is improved, and the thermal pollution caused by direct heat emission is reduced.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circulating water energy-saving device, comprising a tower body (1), an inlet pipe (7), and an outlet pipe (8), wherein a spray mechanism (3), a packing layer (4), and a cooling water tank (5) are respectively arranged inside the tower body (1), the packing layer (4) being located below the spray mechanism (3), and the cooling water tank (5) being located below the packing layer (4), characterized in that: The tower body (1) is equipped with a heat exchange and cooling mechanism for exchanging heat with the cooling water during the cooling process. The heat exchange and cooling mechanism includes a cooling pipe (9) and a pump body (10) for conveying coolant into the cooling pipe (9).

2. The circulating water energy-saving device according to claim 1, characterized in that: The top of the tower body (1) is also provided with a hot air outlet (2), and a fan (6) is provided inside the hot air outlet (2). An opening is provided on the tower body (1), and the opening is located in the middle of the packing layer (4) and the cooling water tank (5).

3. The circulating water energy-saving device according to claim 2, characterized in that: One end of the liquid inlet pipe (7) is connected to the liquid inlet end of the spray mechanism (3), and one end of the liquid outlet pipe (8) is connected to the interior of the cooling water tank (5).

4. The circulating water energy-saving device according to claim 1, characterized in that: The cooling pipe (9) is arranged around the inside of the tower body (1) and is located between the spray mechanism (3) and the packing layer (4).

5. The circulating water energy-saving device according to claim 4, characterized in that: The inlet end of the cooling pipe (9) is connected to the outlet end of the pump body (10), and the inlet end of the pump body (10) is connected to the external cooling tank containing coolant.

6. The circulating water energy-saving device according to claim 4, characterized in that: An absorption heat pump (11) is installed on the outside of the tower body (1), and the liquid outlet of the cooling pipe (9) is connected to the liquid inlet of the absorption heat pump (11).

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