Alkaline wastewater cooling and recycling system

Abstract

The utility model discloses an alkaline wastewater cooling recycling system, which relates to the technical field of wastewater cooling, and comprises a cooling tower body, one side of the cooling tower body is respectively provided with a water inlet I for inputting hot wastewater and a water inlet II for inputting cooling wastewater, the inner end of the water inlet I is uniformly communicated with a water distribution system arranged in the cooling tower body, and the inner end of the water inlet II is communicated with a water distribution system II arranged in the cooling tower body; the outer end of the second water inlet is communicated with one end of a circulation pipeline, a water pump is arranged on the circulation pipeline, the other end of the circulation pipeline is communicated with a water outlet in the bottom of the water storage tank, and waste water in the water storage tank is pumped into the cooling tower body through the water pump. Collected cooled waste water is introduced to serve as a low-temperature medium to participate in the heat exchange process for heat exchange, so that the hot waste water is cooled, and the cooling efficiency of the cooling tower is further improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater cooling technology, specifically an alkaline wastewater cooling and recycling system. Background Technology

[0002] Industrial alkaline wastewater with excessively high temperatures requires cooling treatment. If the wastewater enters the treatment process directly at excessively high temperatures, it may affect the activity of microorganisms, thus impacting the effectiveness of biological treatment. Cooling tower cooling is a common physical method for cooling industrial alkaline wastewater. The cooling process primarily relies on two principles: evaporative cooling and contact cooling. The cooling tower's operation includes: hot water intake, air intake, heat exchange, hot air exhaust, and cooling water collection.

[0003] Since the temperature of the collected cooled wastewater is lower than that of the hot wastewater entering the cooling tower, the cooled wastewater can be introduced as a low-temperature medium to participate in the heat exchange process. Therefore, it can be recycled and reused for heat exchange to cool the hot wastewater, thereby further improving the cooling efficiency of the cooling tower. Utility Model Content

[0004] The purpose of this invention is to provide an alkaline wastewater cooling and recycling system to further improve the cooling efficiency of cooling towers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an alkaline wastewater cooling and recycling system, comprising a cooling tower body, a heat exchange fan at the top of the cooling tower body, a water collection tank at the bottom of the cooling tower body, an air inlet at the lower periphery of the cooling tower body and above the water collection tank, a water-spreading packing material separating the inner cavity of the cooling tower body in the middle of the cooling tower body, a water storage tank at the bottom of the cooling tower body, and an inlet for heating wastewater and a inlet for cooling wastewater respectively on one side of the cooling tower body. The inner end of the first inlet is connected to a water distribution system 1 located inside the cooling tower body, and the inner end of the second inlet is connected to a water distribution system 2 located inside the cooling tower body. The second water distribution system is located below the first water distribution system and above the water-spreading packing material.

[0006] The two outer ends of the water inlet are connected to one end of the circulation pipeline. A water pump is installed on the circulation pipeline. The other end of the circulation pipeline is connected to the water outlet at the bottom of the water storage tank. Wastewater in the water storage tank is pumped to the cooling tower body by the water pump. The water collection tank is provided with a drain outlet for the cooling wastewater. The drain outlet is connected to the water inlet of the water storage tank through a drain pipeline.

[0007] Preferably, the water storage tank is horizontal, and a filter screen is provided in the middle of the water storage tank to separate the inner cavity of the water storage tank. The water inlet and water outlet are located on both sides of the filter screen.

[0008] Preferably, the bottom of the water storage tank has a slag discharge port on the side of the filter screen near the water inlet.

[0009] Preferably, both the water distribution system one and the water distribution system two are equipped with uniformly distributed downward spray nozzles.

[0010] Preferably, the nozzles spraying downwards on the first water distribution system are staggered from the nozzles spraying downwards on the second water distribution system, and the nozzles on the second water distribution system are located between two adjacent sets of nozzles on the first water distribution system.

[0011] Preferably, the cooling tower body is provided with a drift eliminator located above the water distribution system.

[0012] This utility model has the following beneficial effects:

[0013] This invention, by setting up a water distribution system, circulation pipeline and water pump, collects cooled wastewater at a temperature lower than the temperature of the hot wastewater entering the cooling tower. The cooled wastewater is then introduced and can participate in the heat exchange process as a low-temperature medium to cool the hot wastewater, thereby further improving the cooling efficiency of the cooling tower. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the cooling tower body of this utility model;

[0016] Figure 3 This is a right view of the internal structure of the cooling tower body of this utility model.

[0017] In the diagram: 1. Cooling tower body; 11. Water collection tank; 12. Air inlet; 13. Water spray packing; 14. Water inlet one; 15. Water inlet two; 16. Water distribution system one; 17. Water distribution system two; 18. Drain outlet; 19. Drift eliminator; 2. Heat exchange fan; 3. Water storage tank; 31. Water outlet; 32. Water inlet; 33. Filter screen; 34. Slag discharge port; 4. Circulation pipeline; 5. Water pump; 6. Drainage pipeline. 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] like Figure 1-3 As shown, this utility model provides a technical solution: an alkaline wastewater cooling and recycling system, including a cooling tower body 1, a heat exchange fan 2 at the top of the cooling tower body 1, a water collection tank 11 at the bottom of the cooling tower body 1, an air inlet 12 at the lower part of the side of the cooling tower body 1 and above the water collection tank 11, and a water spraying packing 13 that divides the inner cavity of the cooling tower body 1 in the middle.

[0020] A water storage tank 3 is located below the cooling tower body 1. The water storage tank 3 is horizontal. On one side of the cooling tower body 1, there are two water inlets: a first inlet 14 for heating wastewater and a second inlet 15 for cooling wastewater. The inner end of the first inlet 14 is connected to a first water distribution system 16 located inside the cooling tower body 1. The inner end of the second inlet 15 is connected to a second water distribution system 17 located inside the cooling tower body 1. The second water distribution system 17 is located below the first water distribution system 16. The first water distribution system 16 and the second water distribution system 17... Both systems 17 are equipped with uniformly distributed downward spray nozzles that spray simultaneously. The downward spray nozzles on the first water distribution system 16 are staggered from the downward spray nozzles on the second water distribution system 17. The nozzles on the second water distribution system 17 are located between two adjacent sets of nozzles on the first water distribution system 16. The uniform spray area of ​​hot wastewater covers the uniform spray area of ​​cooling wastewater. The second water distribution system 17 is located above the water spraying packing 13. The cooling tower body 1 is equipped with a drift eliminator 19 located above the first water distribution system 16.

[0021] The outer end of the inlet 15 is connected to one end of the circulation pipe 4. A water pump 5 is installed on the circulation pipe 4. The other end of the circulation pipe 4 is connected to the outlet 31 at the bottom of the water storage tank 3. Wastewater in the water storage tank 3 is pumped to the cooling tower body 1 by the water pump 5. A drain outlet 18 for cooling wastewater is provided on the water collection tank 11. The drain outlet 18 is connected to the inlet 32 ​​of the water storage tank 3 through the drain pipe 6. A filter screen 33 is provided in the middle of the water storage tank 3 to separate the inner cavity of the water storage tank 3. The inlet 32 ​​and the outlet 31 are located on both sides of the filter screen 33. A slag discharge outlet 34 is provided at the bottom of the water storage tank 3 on the side of the filter screen 33 near the inlet 32.

[0022] During use, hot wastewater is evenly sprayed onto the water distribution packing 13 through the water distribution system 16. The cooled wastewater enters the water storage tank 3 and is then pumped back to the water distribution system 17 through the water pump 5 for even spraying onto the water distribution packing 13, thus achieving recycling. The cooled wastewater is introduced as a low-temperature medium to participate in the heat exchange process to cool the hot wastewater and further improve the cooling efficiency of the cooling tower.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An alkaline wastewater cooling and recycling system, comprising a cooling tower body (1), wherein a heat exchange fan (2) is provided at the top of the cooling tower body (1), a water collection tank (11) is provided at the bottom of the cooling tower body (1), an air inlet (12) is provided on the lower periphery of the cooling tower body (1) and above the water collection tank (11), and a water-spraying packing (13) is provided in the middle of the cooling tower body (1) to separate the inner cavity of the cooling tower body (1), characterized in that: A water storage tank (3) is provided below the cooling tower body (1). A water inlet 1 (14) for heating wastewater input and a water inlet 2 (15) for cooling wastewater input are respectively provided on one side of the cooling tower body (1). The inner end of the water inlet 1 (14) is connected to the water distribution system 1 (16) provided in the cooling tower body (1). The inner end of the water inlet 2 (15) is connected to the water distribution system 2 (17) provided in the cooling tower body (1). The water distribution system 2 (17) is located below the water distribution system 1 (16) and above the water spraying packing (13). The outer end of the second water inlet (15) is connected to one end of the circulation pipe (4). A water pump (5) is installed on the circulation pipe (4). The other end of the circulation pipe (4) is connected to the outlet (31) at the bottom of the water storage tank (3). Wastewater in the water storage tank (3) is pumped to the cooling tower body (1) by the water pump (5). A drain outlet (18) for cooling wastewater is provided on the water collection tank (11). The drain outlet (18) is connected to the inlet (32) of the water storage tank (3) through the drain pipe (6).

2. The alkaline wastewater cooling and recovery system according to claim 1, characterized in that: The water storage tank (3) is horizontal, and a filter screen (33) is provided in the middle of the water storage tank (3) to separate the inner cavity of the water storage tank (3). The inlet (32) and outlet (31) are located on both sides of the filter screen (33).

3. The alkaline wastewater cooling and recovery system according to claim 2, characterized in that: The bottom of the water storage tank (3) is provided with a slag discharge port (34) on the side of the filter screen (33) near the water inlet (32).

4. The alkaline wastewater cooling and recovery system according to claim 1, characterized in that: Both the water distribution system one (16) and the water distribution system two (17) are equipped with uniformly distributed downward spray nozzles.

5. The alkaline wastewater cooling and recovery system according to claim 4, characterized in that: The nozzles spraying downwards on the first water distribution system (16) are staggered from the nozzles spraying downwards on the second water distribution system (17), and the nozzles on the second water distribution system (17) are located between two adjacent sets of nozzles on the first water distribution system (16).

6. The alkaline wastewater cooling and recovery system according to claim 1, characterized in that: The cooling tower body (1) is equipped with a drift eliminator (19) located above the water distribution system (16).

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