Water-saving closed cooling tower

Abstract

The utility model relates to the technical field of closed cooling towers, in particular to a water-saving closed cooling tower which comprises a shell and a bottom box, the bottom end of the shell is open, the open end of the shell is fixedly communicated with the bottom box, the top end of the shell is fixedly communicated with a fan, a heat exchange pipe is horizontally fixed in the shell, and the heat exchange pipe is communicated with the bottom box. A plurality of heat exchange branch pipes are transversely and horizontally arranged on the two sides of the outer circumferential face of the heat exchange pipe, a water cylinder is fixedly arranged outside the heat exchange branch pipes in a sleeving mode, and a liquid inlet pipe is vertically and fixedly arranged at one end of the top of the outer circumferential face of the water cylinder in a communicating mode; and the other end of the bottom of the outer circumferential surface of the water barrel is vertically communicated and fixed with a liquid discharge pipe. When the closed cooling tower disclosed by the utility model is used for cooling, sprayed water flows downwards into the reservoir, air for cooling enters from the air inlet at the bottom of the closed cooling tower, and part of water vapor can flow upwards to be discharged out of the closed cooling tower during air circulation, so that the sprayed cooling water is discharged to cause waste of water resources.

Description

Technical Field

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

[0002] Water-saving closed-circuit cooling towers are a type of high-efficiency cooling equipment designed to minimize water consumption while maintaining cooling performance. Compared to open-circuit cooling towers, the biggest advantage of closed-circuit cooling towers is that the circulating water is recycled within a closed system, thereby reducing the chance of evaporation and pollution and improving the efficiency of water resource utilization.

[0003] The existing announcement number is CN218864881U, named "A Water-Saving Closed-Circuit Cooling Tower". An external heat source medium is connected to the inlet on an air-cooled finned tube. The medium enters the air-cooled finned tube and is cooled by air through the air-cooled finned tube and a fan. Then, the medium enters a water-cooled heat exchanger, where it undergoes secondary cooling through serpentine heat exchange tubes, thus greatly improving the cooling efficiency of the medium. The heat dissipation mechanism uses a distributor to achieve bidirectional airflow, accelerating the heat exchange efficiency of the cooling tower. Furthermore, the airflow is transmitted through a delivery pipe, which reduces noise. Water vapor inside the cooling tower is collected in a bottom water storage tank. When the ambient temperature is high, the operator can activate an auxiliary spray mechanism to further cool the water-cooled heat exchanger, further improving the cooling efficiency of the medium.

[0004] However, when the closed-circuit cooling tower is used for cooling, the sprayed water flows downward into the water storage tank, and the air used for cooling enters from the air inlet at the bottom of the closed-circuit cooling tower. When the air circulates, it carries some water vapor upward and flows out of the closed-circuit cooling tower, thus causing the sprayed cooling water to be discharged, resulting in a waste of water resources. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes a water-saving closed-loop cooling tower.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a water-saving closed cooling tower, including a shell and a bottom box, the bottom of the shell is open and connected to the bottom box, the top of the shell is connected to and fixed, a heat exchange tube is horizontally fixed inside the shell, and the two ends of the heat exchange tube are respectively connected to and fixed through the shell, a plurality of heat exchange branch pipes are horizontally arranged on both sides of the outer circumference of the heat exchange tube, and a water cylinder is sleeved and fixed outside the plurality of heat exchange branch pipes. A liquid inlet pipe is vertically connected and fixed at the top of the outer circumference of the water cylinder, and a liquid outlet pipe is vertically connected and fixed at the bottom of the outer circumference of the water cylinder. A first liquid distribution pipe is horizontally fixed inside the shell above the heat exchange tube, and a second liquid distribution pipe is horizontally fixed inside the shell below the heat exchange tube. A plurality of branch pipes are horizontally connected and fixed on both sides of the outer circumference of the first liquid distribution pipe and the second liquid distribution pipe, and the plurality of branch pipes of the first liquid distribution pipe and the second liquid distribution pipe are respectively connected and fixed to the liquid inlet pipe and the liquid outlet pipe of the water cylinder.

[0007] As a preferred embodiment, one end of the first liquid distribution pipe is horizontally connected and fixed to a liquid distribution inlet pipe through the shell, and one end of the second liquid distribution pipe is horizontally connected and fixed to a liquid distribution outlet pipe through the shell.

[0008] As a preferred embodiment, multiple convex rings are arranged laterally on the outer wall of the heat exchange branch pipe, and the multiple convex rings are connected and fixed on the heat exchange branch pipe.

[0009] As a preferred option, air inlets are provided on both vertical ends of the bottom box, and the air inlets of the bottom box are connected to and fixed with sliding frames.

[0010] As a preferred embodiment, a filter slide is horizontally slidably assembled in the slide frame, and the filter slide frame is filled with filter cotton.

[0011] As a preferred option, a mesh is fixed to the end of the sliding frame away from the base box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During heat exchange, the heat exchange liquid is introduced from one end of the heat exchange tube in the shell and enters the heat exchange branch pipe. Then, water is introduced from the liquid inlet pipe of the first liquid distribution pipe and dispersed into the water cylinder from the branch pipe. The water contacts the outer wall of the heat exchange branch pipe in the water cylinder, and the heat in the heat exchange liquid is guided into the water from the heat exchange branch pipe to cool the heat exchange liquid. Then, the water carrying heat flows into the second liquid distribution pipe and flows out from the liquid outlet pipe at the end of the second liquid distribution pipe. Thus, when cooling the heat exchange liquid, both the heat exchange liquid and the water flow in a closed loop for heat exchange. The fan is started to drive the external air to move vertically upward from the shell. The upward air contacts the heat exchange tube, the first liquid distribution pipe and the second liquid distribution pipe for heat dissipation and cooling, thereby reducing the evaporation of the heat exchange liquid and water and improving the water-saving performance of the heat exchange liquid and water. Attached Figure Description

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

[0014] Figure 2 This is an exploded structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the shell in the disassembled state in an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the heat exchange tube in the disassembled state in an embodiment of this utility model;

[0017] Figure 5 This is a schematic diagram of the bottom box in the disassembled state in an embodiment of this utility model.

[0018] In the diagram: 1. Shell; 2. Base box; 21. Sliding frame; 22. Filter sliding frame; 23. Filter cotton; 24. Mesh; 3. Fan; 4. Heat exchange tube; 41. Connecting pipe head; 42. Heat exchange branch pipe; 43. Convex ring; 44. Water cylinder; 45. Liquid inlet pipe; 46. Liquid outlet pipe; 5. First liquid distribution pipe; 51. Branch pipe; 52. Liquid distribution inlet pipe; 6. Second liquid distribution pipe; 61. Liquid distribution outlet pipe. Detailed Implementation

[0019] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] like Figures 1 to 5 As shown, a water-saving closed-loop cooling tower includes a shell 1 and a base box 2. The bottom end of the shell 1 is open, and the base box 2 is fixedly connected to the open end of the shell 1. A fan 3 is fixedly connected to the top end of the shell 1. A heat exchange tube 4 is horizontally fixed inside the shell 1, and both ends of the heat exchange tube 4 pass through the shell 1 and are fixedly connected to a connecting pipe head 41. Multiple heat exchange branch pipes 42 are horizontally arranged on both sides of the outer circumference of the heat exchange tube 4, and a water cylinder 44 is fixedly fitted on the outside of the multiple heat exchange branch pipes 42. A liquid inlet pipe 45 is vertically connected to the top end of the outer circumference of the water cylinder 44, and a liquid outlet pipe 46 is vertically connected to the bottom end of the outer circumference of the water cylinder 44. A first liquid distribution pipe 5 is horizontally fixed above the heat exchange tube 4 inside the shell 1, and a second liquid distribution pipe 6 is horizontally fixed below the heat exchange tube 4 inside the shell 1. Multiple branch pipes 51 are horizontally connected to both sides of the outer circumference of the first liquid distribution pipe 5 and the second liquid distribution pipe 6. Branch pipes 51 are respectively connected to the inlet pipe 45 and the outlet pipe 46 of the water cylinder 44. During heat exchange, the heat exchange liquid is introduced from one end of the heat exchange tube 4 of the shell 1 and enters the heat exchange branch pipe 42. Then, water is introduced from the liquid distribution inlet pipe 52 of the first distribution pipe 5. The water flows into the water cylinder 44 through the branch pipes 51. The water contacts the outer wall of the heat exchange branch pipe 42 in the water cylinder 44, and the heat in the heat exchange liquid is guided into the water through the heat exchange branch pipe 42 to cool the heat exchange liquid. The water carrying heat flows into the second distribution pipe 6 and then out through the distribution drain pipe 61 at the end of the second distribution pipe 6. Thus, when cooling the heat exchange liquid, both the heat exchange liquid and the water flow in a closed loop for heat exchange. The fan 3 is started to drive the external air to move vertically upward from the shell 1. The upward air contacts the heat exchange pipe 4, the first distribution pipe 5 and the second distribution pipe 6 to dissipate heat and cool down, thereby reducing the evaporation of the heat exchange liquid and water and improving the water-saving performance of the heat exchange liquid and water.

[0026] In one embodiment, such as Figure 3 and 4 As shown, one end of the first liquid distribution pipe 5 passes through the shell 1 and is horizontally connected to and fixed with a liquid distribution inlet pipe 52. One end of the second liquid distribution pipe 6 passes through the shell 1 and is horizontally connected to and fixed with a liquid distribution outlet pipe 61. In use, water is introduced from the liquid distribution inlet pipe 52 of the first liquid distribution pipe 5. The water flows into the water cylinder 44 through the branch pipe 51. The water contacts the outer wall of the heat exchange branch pipe 42 in the water cylinder 44. The heat in the heat exchange liquid is guided from the heat exchange branch pipe 42 into the water to cool the heat exchange liquid. Then, the water carrying heat flows into the second liquid distribution pipe 6. The water carrying heat flows out from the liquid distribution outlet pipe 61 at the end of the second liquid distribution pipe 6 to guide the cooling water to contact the heat exchange branch pipe 42 for cooling.

[0027] In one embodiment, such as Figure 3 and 4As shown, multiple convex rings 43 are transversely arranged on the outer wall of the heat exchange branch pipe 42, and the multiple convex rings 43 are connected and fixed on the heat exchange branch pipe 42. The multiple convex rings 43 arranged on the outer wall of the heat exchange branch pipe 42 increase the contact area with water and improve the cooling performance of the heat exchange liquid inside the heat exchange branch pipe 42.

[0028] In one embodiment, such as Figure 5 As shown, air inlets are provided on both vertical ends of the bottom box 2, and a sliding frame 21 is fixedly connected to the air inlet of the bottom box 2. A filter slide frame 22 is horizontally slidably assembled in the slide frame 21, and filter cotton 23 is filled in the filter slide frame 22. A mesh 24 is fixed at the end of the slide frame 21 away from the bottom box 2. In order to ensure the cleanliness of the incoming air, the air enters the filter slide frame 22 and is filtered by the filter cotton 23 to remove impurities in the air, thus ensuring the cleanliness of the incoming air.

[0029] In this embodiment, during heat exchange, the heat exchange liquid is introduced from one end of the heat exchange tube 4 of the shell 1 and enters the heat exchange branch tube 42. Then, water is introduced from the liquid inlet pipe 52 of the first liquid distribution pipe 5 and dispersed into the water cylinder 44 from the branch pipe 51. The water in the water cylinder 44 contacts the outer wall of the heat exchange branch tube 42, and the heat in the heat exchange liquid is guided into the water from the heat exchange branch tube 42 to cool the heat exchange liquid. Then, the water carrying heat flows into the second liquid distribution pipe 6 and flows out from the liquid outlet pipe 61 at the end of the second liquid distribution pipe 6. Thus, when cooling the heat exchange liquid, both the heat exchange liquid and the water flow in a closed loop for heat exchange. The fan 3 is started to drive the external air to move vertically upward from the shell 1. The upward air contacts the heat exchange tube 4, the first liquid distribution pipe 5 and the second liquid distribution pipe 6 to dissipate heat and cool down.

[0030] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A water-saving closed-loop cooling tower, characterized in that, The enclosure includes a shell (1) and a base box (2). The bottom end of the shell (1) is open, and the base box (2) is fixedly connected to the open end of the shell (1). A fan (3) is fixedly connected to the top end of the shell (1). A heat exchange tube (4) is horizontally fixed inside the shell (1), and both ends of the heat exchange tube (4) are connected to a connecting pipe head (41) through the shell (1). Multiple heat exchange branch pipes (42) are horizontally arranged on both sides of the outer circumference of the heat exchange tube (4), and a water cylinder (44) is fixedly fitted on the outside of the multiple heat exchange branch pipes (42). One end of the top of the outer circumference of the water cylinder (44) is vertically connected to and fixed. There is an inlet pipe (45), and the other end of the bottom of the outer circumference of the water cylinder (44) is vertically connected to and fixed with a drain pipe (46). The inside of the shell (1) is horizontally fixed above the heat exchange tube (4), and the inside of the shell (1) is horizontally fixed below the heat exchange tube (4). The first liquid distribution pipe (5) and the second liquid distribution pipe (6) are horizontally connected to and fixed with multiple branch pipes (51) on both sides of the outer circumference of the first liquid distribution pipe (5) and the second liquid distribution pipe (6). The multiple branch pipes (51) of the first liquid distribution pipe (5) and the second liquid distribution pipe (6) are respectively connected to and fixed on the inlet pipe (45) and the drain pipe (46) of the water cylinder (44).

2. The water-saving closed-loop cooling tower according to claim 1, characterized in that: One end of the first liquid distribution pipe (5) passes through the housing (1) and is horizontally connected to and fixed with a liquid distribution inlet pipe (52). One end of the second liquid distribution pipe (6) passes through the housing (1) and is horizontally connected to and fixed with a liquid distribution outlet pipe (61).

3. A water-saving closed-loop cooling tower according to claim 2, characterized in that: Multiple protruding rings (43) are arranged laterally on the outer wall of the heat exchange branch pipe (42), and the multiple protruding rings (43) are connected and fixed on the heat exchange branch pipe (42).

4. A water-saving closed-loop cooling tower according to claim 3, characterized in that: The bottom box (2) has air inlets on both vertical ends, and the air inlets of the bottom box (2) are connected to and fixed with sliding frames (21).

5. A water-saving closed-loop cooling tower according to claim 4, characterized in that: The slide frame (21) is horizontally slidably assembled with a filter slide frame (22), and the filter slide frame (22) is filled with filter cotton (23).

6. A water-saving closed-loop cooling tower according to claim 5, characterized in that: A mesh (24) is fixed to one end of the sliding frame (21) away from the bottom box (2).

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